Ice crystal sampling device for cloud laboratory

Abstract

The invention discloses a cloud and mist laboratory ice crystal sampling device in the technical field of ice crystal sampling, which comprises a cloud and mist chamber, a glass slide and a controller, and a lifting mechanism is mounted at the top of the cloud and mist chamber; a sampling platform is mounted in the cloud chamber, and a plurality of fixing assemblies for fixing glass slides are mounted at the top end of the sampling platform; the lifting mechanism comprises a movable groove formed in the top end of the cloud chamber, a movable layer in sliding fit with the movable groove is arranged in the movable groove, a plurality of sampling channels in one-to-one correspondence with the fixing assemblies are formed in the top end of the movable layer, and electric control telescopic cylinders close to the bottom end of the movable layer are installed in the sampling channels; the center position of the moving layer is in threaded connection with a driving assembly fixedly connected with the inner bottom wall of the movable groove. A plurality of isolation channels in one-to-one correspondence with the sampling channels are formed in the bottom of the movable groove. According to the ice crystal sampling device, the ice crystal sample is directly lifted into the sampling channel through the fixing assembly, vibration and stress generated when the ice crystal sample is taken out are reduced, the integrity of the ice crystal sample is improved, and the accuracy of subsequent detection results is improved.

Description

Technical Field

[0001] The invention relates to the technical field of ice crystal sampling, and in particular to a device for ice crystal sampling in a cloud and fog laboratory. Background Art

[0002] Ice crystals are important research subjects in cloud physics and meteorology, and their formation is closely related to precipitation mechanisms and climate change. Ice crystals grow in a supercooled water droplet environment through desublimation. Their morphology (such as their six-fold symmetry) and distribution directly influence cloud evolution and the formation of snow and rain. Therefore, accurately sampling ice crystals is crucial for analyzing cloud microphysical processes.

[0003] A search revealed a device for sampling ice crystals in a cloud and fog laboratory, patent publication number CN212674472U. The device comprises a connecting mechanism and a movable outflow section. The connecting mechanism includes a connecting section with a slide channel at its center, and an inlet and outlet at each end. The movable outflow section comprises a forward and backward movement mechanism, a left and right movement mechanism mounted on the mechanism, and an ejection mechanism. The left and right movement mechanism mounts a slide. The ejection mechanism pushes the slide from the inlet to the outlet, effectively protecting the ice crystal sample from damage. However, when the moving pushing mechanism contacts the stationary glass slide, due to inertia, the glass slide is prone to vibrate at the moment of contact between the two, causing the ice crystal structure to break. At the same time, the push-pull transmission structure lacks a buffer design, and the brittleness of the material increases in a low-temperature environment below -30°C, further exacerbating the probability of sample damage. In addition, the glass slide needs to be transferred from the left and right moving devices to the glass slide channel, and then pushed out by the pushing mechanism. The glass slide is subjected to a bidirectional clamping force at the entrance of the channel, which can easily cause microcracks on the edge of the brittle glass slide. When the glass slide is used for subsequent ice crystal sampling, the microcracks on the edge of the slide will form a non-uniform surface structure, resulting in an increase in heterogeneous nucleation sites and stress-induced growth distortion, thereby affecting the accuracy of the experimental results.

[0004] Therefore, the present invention proposes a device for sampling ice crystals in a cloud laboratory to solve the above problems. Summary of the Invention

[0005] To solve the above problems, the present invention provides a device for sampling ice crystals in a cloud and fog laboratory, which directly lifts a glass slide fixed on a sampling platform into a sampling channel, avoiding the glass slide being transferred from the sampling platform to a pushing mechanism and then pushed into the cloud and fog chamber by the pushing mechanism, thereby reducing the vibration and stress to which the glass slide is subjected during the removal process, thereby improving the integrity of the ice crystal sample and improving the accuracy of subsequent test results.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: a device for sampling ice crystals in a cloud laboratory, comprising a cloud chamber, a glass slide, and a controller, wherein a lifting mechanism is installed on the top of the cloud chamber; a sampling platform is installed inside the cloud chamber, and a plurality of fixing components for fixing the glass slide are installed on the top of the sampling platform;

[0007] The lifting mechanism includes a movable groove arranged at the top of the cloud chamber, a movable layer slidingly matched with the movable groove is arranged inside the movable groove, a plurality of sampling channels corresponding to the fixed components are opened on the top of the movable layer, an electrically controlled telescopic cylinder close to the bottom of the movable layer is installed inside the sampling channels, and a driving component fixedly connected to the bottom wall of the movable groove is threadedly connected at the center position of the moving layer; a plurality of isolation channels corresponding to the sampling channels are opened at the bottom of the movable groove; a power component for driving the electrically controlled telescopic cylinder to lift and lower the slide is provided on the top of the fixed component; the driving component and the electrically controlled telescopic cylinder are both electrically connected to the controller.

[0008] Principle of the basic solution: After the ice crystal sample is sampled, the driving component controls the moving layer to descend to the appropriate position. After reaching the target position, the electrically controlled telescopic cylinder in the sampling channel gradually extends downward, enters the cloud chamber through the isolation channel, and then gradually covers the glass slide on the fixed component. At the same time, as the electrically controlled telescopic cylinder descends, it will gradually squeeze the power component to increase the driving force of the power component, and then the power component drives the fixed component to lift, and then lift the glass slide to the exit end of the sampling channel together to complete the ice crystal sample removal.

[0009] The above scheme has the following beneficial effects: compared with the existing technology, this scheme directly lifts the glass slide fixed on the sampling platform through the lifting mechanism, thereby avoiding the direct contact between the ejection mechanism and the glass slide in the existing technology, thereby eliminating the transfer link of the glass slide between the left and right moving device and the ejection mechanism in the existing technology, and fundamentally eliminating the inertial vibration caused by the mechanical push-pull action. At the same time, the synergistic effect of the power component and the electrically controlled telescopic cylinder realizes progressive force application, avoids instantaneous contact impact, and effectively reduces the risk of ice crystals breaking due to vibration.

[0010] Furthermore, the driving assembly includes a support frame arranged at the center position of the movable groove and slidingly engaged with the movable layer, a motor box is installed on the top of the support frame, a motor is installed inside the motor box, the motor output shaft is coaxially fixedly connected with a threaded rod, the threaded rod extends away from one end of the motor to the bottom wall of the movable groove and rotates with the bottom wall of the movable groove, the threaded rod is threadedly connected to the movable layer; the motor is electrically connected to the controller.

[0011] Beneficial effect: Through the transmission of the motor and the threaded rod, the sliding cooperation between the support frame and the movable groove limits the horizontal degree of freedom, so that the moving layer, the threaded rod and the support frame form a ball screw structure, realizing precise closed-loop control of the vertical displacement of the moving layer and avoiding displacement deviation caused by unbalanced load.

[0012] Furthermore, the fixing components include a placing table fixedly connected to the top of the sampling platform, a placing groove is provided at the top of the placing table, a lifting cavity extending to the interior of the sampling platform is provided at the bottom of the placing groove, a lifting column is slidably fitted in the lifting cavity, and the top of the lifting column is fixedly connected to a placing box for fixing the slide, and the placing box corresponds to the placing groove.

[0013] Beneficial Effect: The fixture assembly achieves three-dimensional positioning of the slide through a nested design of placement grooves and lifting posts. The geometric precision of the placement grooves creates a millimeter-level clearance fit with the edge of the ice crystal sample slide, ensuring no horizontal offset while avoiding stress concentration caused by hard contact.

[0014] Furthermore, the power components include an annular extrusion groove opened at the top of the placement table and extending to the inside of the sampling platform. The inside of the extrusion groove is slidably fitted with an extrusion block. The bottom end of the extrusion block is fixedly connected to a number of springs. The end of the spring away from the extrusion block is fixedly connected to the bottom of the extrusion groove. The bottom of the extrusion groove is provided with a number of gas transmission channels connected to the lifting cavity; the extrusion blocks are located within the motion trajectory of the electrically controlled telescopic cylinder.

[0015] Beneficial effect: By applying linear pressure to the extrusion block through the electrically controlled telescopic cylinder, mechanical kinetic energy is converted into a dual composite driving force of the elastic potential energy of the spring and the pneumatic pressure. When the extrusion block is forced to move downward to compress the spring, the air at the bottom of the extrusion groove is directionally injected into the bottom of the lifting cavity through the air supply channel, forming a uniform air pressure to push the lifting column to rise at a uniform speed, thereby eliminating the high-frequency micro-vibration of the glass slide caused by the gap between the moving parts. At the same time, the elastic energy storage characteristics of the spring can absorb the instantaneous contact impact of the electrically controlled telescopic cylinder, and the fluid continuity of the air pressure ensures a smooth transition of the displacement of the lifting column. The synergistic effect of the two keeps the glass slide in a quasi-static equilibrium state at all times. In a low-temperature environment, the non-contact energy transfer through the air pressure medium avoids the risk of cold brittle fracture of mechanical transmission parts, and the directional flow guidance characteristics of the air supply channel can simultaneously suppress the secondary crystallization phenomenon caused by air flow disturbance on the surface of the ice crystal.

[0016] Furthermore, an electric-controlled lifting column electrically connected to the controller is installed at the bottom of the cloud chamber, and the output end of the electric-controlled lifting column is fixedly connected to the bottom end of the sampling platform.

[0017] Beneficial Effects: The electrically controlled lifting column uses a controller to achieve stepless adjustment of the sampling platform's height, precisely matching the distribution characteristics of different ice crystal formation layers within the cloud chamber. Its vertical displacement forms a closed loop with the moving layer and power assembly, ensuring that the slide remains horizontal during the lifting process, avoiding tilting or jamming caused by deviations in the coordination of multiple mechanisms.

[0018] Furthermore, a first isolation plate electrically connected to the controller is installed inside the isolation channel.

[0019] Beneficial effect: The first isolation plate isolates the internal environment of the cloud chamber from the external environment, blocking convection disturbance caused by the temperature difference between the inside and outside of the cloud chamber.

[0020] Furthermore, a second isolation plate electrically connected to the controller is installed inside the sampling channel near its top.

[0021] Beneficial effect: The second isolation plate is located at the top of the sampling channel, and is closed to form a terminal air lock after the glass slide is lifted into place, and cooperates with the first isolation plate to construct a segmented isolation cavity.

[0022] Furthermore, the extrusion groove and the lifting cavity are filled with silicon-based hydraulic fluid.

[0023] Beneficial effects: The low freezing point of silicon-based hydraulic fluid (<-70°C) can inhibit volume shrinkage at low temperatures, and its incompressibility ensures the accuracy of air pressure transmission. At the same time, the liquid seal structure blocks the intrusion of external water vapor and maintains the cleanliness of the cavity.

[0024] Furthermore, a plurality of through slots are provided on both sides of the placement box in the length direction.

[0025] Beneficial effect: The through groove provides a gripping fulcrum, which makes it easy to grip the side of the slide with fingers or tools to remove it, avoiding structural damage caused by contact with the sample attachment surface, and reducing the risk of gloves slipping during operation in low temperature environments.

[0026] Furthermore, the first isolation plate and the second isolation plate are both filled with silica aerogel.

[0027] Beneficial effect: The ultra-low thermal conductivity of silica aerogel (<0.02W / m·K) can block the cold transfer path.

[0028] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 An overall half-section view of an embodiment of a device for sampling ice crystals in a cloud laboratory according to the present invention;

[0030] Figure 2 An overall front cross-sectional view of an embodiment of a device for sampling ice crystals in a cloud laboratory according to the present invention;

[0031] Figure 3 An enlarged view of part A of an embodiment of a device for sampling ice crystals in a cloud laboratory according to the present invention;

[0032] Figure 4 This is an enlarged view of part B of an embodiment of the device for sampling ice crystals in a cloud laboratory according to the present invention.

[0033] The figure marks in the drawings of the specification include: 1. cloud chamber; 2. sampling platform; 3. electric-controlled lifting column; 4. placement table; 401. extrusion groove; 402. extrusion block; 403. spring; 404. gas transmission channel; 405. lifting cavity; 406. lifting column; 5. movable groove; 6. moving layer; 601. sampling channel; 602. second isolation plate; 603. electric-controlled telescopic cylinder; 7. support frame; 8. motor box; 9. threaded rod; 10. isolation channel; 11. first isolation plate; 12. placement box; 13. slide. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0037] The following is further described in detail through specific implementation methods:

[0038] Example 1:

[0039] As attached Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown: A device for sampling ice crystals in a cloud and fog laboratory comprises a cloud and fog chamber 1, a glass slide 13 and a controller. A lifting mechanism is installed on the top of the cloud and fog chamber 1; a sampling platform 2 is provided inside the cloud and fog chamber 1. At the same time, an electric-controlled lifting column 3 electrically connected to the controller is installed at the bottom of the cloud and fog chamber 1, and the output end of the electric-controlled lifting column 3 is fixedly connected to the bottom end of the sampling platform 2 by bolts, so that the initial height of the sampling platform 2 in the cloud and fog chamber 1 can be adjusted by the electric-controlled lifting column 3, that is, the sampling height of the glass slide 13 in the cloud and fog chamber 1 is adjusted, so as to obtain the formation of ice crystals at different heights, thereby analyzing a more complete cloud and fog situation, and helping staff to understand the situation of artificial weather modification more clearly.

[0040] Several fixing components for securing the glass slide 13 are mounted on the top of the sampling platform 2. The lifting mechanism comprises a movable slot 5 disposed at the top of the cloud chamber 1. A movable layer 6 is disposed within the movable slot 5, which slides in cooperation with the movable slot 5. Several sampling channels 601 are formed on the top of the movable layer 6, corresponding one to one with the fixing components. Each sampling channel 601 is screw-fixed with an electrically controlled telescopic cylinder 603 near the bottom of the movable layer 6. The electrically controlled telescopic cylinders 603 are electrically connected to a controller. A drive component, fixedly connected to the inner bottom wall of the movable slot 5, is threadedly connected to the center of the movable layer 6.

[0041] Among them, the driving assembly includes a support frame 7 welded to the center position of the movable groove 5 and slidingly matched with the movable layer 6. The top of the support frame 7 is bolted to a motor box 8. The internal screws of the motor box 8 are connected to a motor electrically connected to the controller. The motor output shaft is coaxially bolted and fixed with a threaded rod 9. The bottom end of the threaded rod 9 extends to the inner bottom wall of the movable groove 5 and rotates with the inner bottom wall of the movable groove 5. The threaded rod 9 is threadedly connected to the movable layer 6.

[0042] Specifically, the fixing components include a placement table 4 integrally formed at the top of the sampling platform 2. The top of the placement table 4 is provided with a placement groove. The bottom of the placement groove is provided with a lifting cavity 405 extending into the interior of the sampling platform 2. Lifting columns 406 are slidably fitted in the lifting cavity 405. The tops of the lifting columns 406 are fixedly connected to the placement box 12 for fixing the slide 13. The placement boxes 12 correspond to the placement grooves. The placement box 12 has a number of through grooves on both sides of the length direction, providing a convenient fulcrum for manual personnel to pick up the slide 13 for subsequent observation and analysis, thereby avoiding structural damage caused by contact with the ice crystal sample surface when transferring the slide 13, and reducing the risk of gloves slipping during operation in a low-temperature environment.

[0043] The bottom of the movable tank 5 is provided with a plurality of isolation channels 10 corresponding to the sampling channels 601 ; the top of the support frame 7 is provided with a power assembly for driving the electrically controlled telescopic cylinder 603 to move the slide 13 up and down.

[0044] A first isolation plate 11 electrically connected to the controller is installed inside the isolation channel 10, and a second isolation plate 602 electrically connected to the controller is installed near the top of the sampling channel 601. The first isolation plate 11 and the second isolation plate 602 are in a closed state during the crystallization process to ensure that the external environment is isolated from the environment inside the cloud chamber 1, thereby improving the stability of the experimental process. When the glass slide 13 (crystallization is completed) is taken out, the first isolation plate 11 is opened (the second isolation plate 602 remains closed), allowing the electrically controlled telescopic cylinder 603 to enter the cloud chamber 1. When the electrically controlled telescopic cylinder 603 is in place, that is, when the glass slide 13 is close to the lower end of the second isolation plate 602, the second isolation plate 602 is opened and the crystallized glass slide 13 is taken out.

[0045] Among them, the power components include an annular extrusion groove 401 opened at the top of the placement table 4 and extending to the inside of the sampling platform 2. The extrusion groove 401 is slidably fitted with an extrusion block 402. The bottom end of the extrusion block 402 is welded with a number of springs 403. The end of the spring 403 away from the extrusion block 402 is welded to the bottom of the extrusion groove 401. The bottom of the extrusion groove 401 is opened with a number of gas transmission channels 404 connected to the lifting cavity 405; the extrusion blocks 402 are all located within the motion trajectory of the electric control telescopic cylinder 603. Since the temperature for ice crystal sampling in the cloud laboratory is generally low, and the low temperature has a great influence on the air volume in the extrusion chamber and the lifting chamber 405 (thermal expansion and contraction), it is difficult to ensure the accuracy of air pressure transmission. Therefore, the extrusion groove 401 and the lifting chamber 405 are filled with silicon-based hydraulic fluid. The low freezing point characteristics of the silicon-based hydraulic fluid (<-70°C) can inhibit low-temperature volume shrinkage, and its incompressibility ensures the accuracy of air pressure transmission. At the same time, the liquid seal structure can block the air flow exchange between the outside and the inside of the cloud chamber 1 when the slide 13 is taken, thereby ensuring the stability of the environmental conditions in the cloud chamber 1.

[0046] Once the electrically controlled telescopic cylinder 603 is in place, that is, after pressing the extrusion block 402 in the extrusion groove 401, the interior of the electrically controlled telescopic cylinder 603 and the interior of the mist chamber 1 form two independent, disconnected spaces. At this point, the gas inside the mist chamber 1 cannot pass through the electrically controlled telescopic cylinder 603. Instead, it flows through the sampling channel 601 and is exchanged with the external environment. This ensures smooth removal of the glass slide 13 while further minimizing the impact on the internal environment of the mist chamber 1. Furthermore, an insulating layer (such as an aluminum foil composite layer or a ceramic reflective coating) can be applied to the inner and outer surfaces of the electrically controlled telescopic cylinder 603 to further minimize the impact of external temperature on the internal temperature of the mist chamber 1 when the second isolation plate 602 is opened.

[0047] The specific implementation process is as follows:

[0048] Preparation Phase: After the controller is activated, the electrically controlled lifting column 3 raises the sampling platform 2 to the target sampling height. The slide 13 precisely fits into the placement box 12 through the side slots, positioning it horizontally. The first isolation plate 11 and the second isolation plate 602 remain closed, preventing the exchange of the internal and external environments of the cloud chamber 1 and maintaining constant temperature, humidity, and pressure within the experimental chamber.

[0049] Sampling phase: The motor starts, rotating the threaded rod 9 and driving the movable layer 6 vertically downward along the support frame 7 until the sampling channel 601 is aligned with the isolation channel 10. The electrically controlled telescopic cylinder 603 is controlled to extend (one or more of these cylinders can be extended, depending on the actual situation), passing through the isolation channel 10 and entering the interior of the cloud chamber 1. Its bottom end contacts the extrusion block 402, exerting vertical pressure. The compression of the extrusion block 402 compresses the spring 403, simultaneously injecting silicone-based hydraulic pressure into the bottom of the lifting chamber 405. This uniform hydraulic pressure pushes the lifting column 406 upward at a constant speed, and the glass slide 13 is vertically lifted along with the placement box 12 into the sampling channel 601. The elastic energy storage of the spring 403 absorbs mechanical shock, while the incompressibility of the hydraulic fluid ensures displacement accuracy (error <±0.1mm), preventing brittle fracture at low temperatures. When the glass slide 13 reaches the top of the sampling channel 601, the first isolation plate 11 closes, and the second isolation plate 602 opens simultaneously, forming a segmented sealed chamber. The operator takes the film through the window of the second isolation plate 602. The aluminum foil composite insulation layer on the surface of the electric telescopic cylinder 603 suppresses external heat conduction and maintains the temperature fluctuation inside the cloud chamber 1 to be less than 0.5°C.

[0050] After sampling is completed, the electrically controlled telescopic cylinder 603 retracts, the reverse drive moving layer 6 is reset, and the first isolation plate 11 and the second isolation plate 602 are closed; at the same time, the electrically controlled lifting column 3 can adjust the sampling platform 2 to the next target height, and the layered sampling is performed cyclically.

[0051] By changing the transport method for the glass slide 13, the glass slide 13 is directly delivered to the sampling channel 601 through the interior of the electrically controlled telescopic cylinder 603. This reduces the risk of ice crystal sample breakage caused by the moment the push rod contacts the glass slide 13 due to the push rod's inertia, thereby suppressing low-temperature brittle damage. It also avoids the need for the glass slide 13 to be transferred multiple times within the cloud chamber 1 (multiple mechanical transfers increase the likelihood of vibration damage to the glass slide 13, thereby affecting the integrity of the ice crystal sample on the sampling surface of the glass slide 13) before being removed from the cloud chamber 1. With the prior art ejection method, after removing one glass slide 13, the ejection mechanism must be reset before the next glass slide 13 can be removed, resulting in a long interval. In contrast, the present solution allows the simultaneous removal of multiple glass slides 13 by lowering multiple electrically controlled telescopic cylinders 603.

[0052] Based on the above, a comparison was conducted between the traditional method (push-pull sampling) and this scheme in terms of core indicators such as ice crystal breakage rate, sampling efficiency, and degree of environmental disturbance (the temperature, humidity, and air pressure in the cloud chamber must be adjusted in advance to the constant temperature, humidity, and pressure required for the experiment to ensure a stable environment for cloud formation and ice crystal growth). The specific experimental data are as follows:

[0053] Table 1 - Sampling Parameter Comparison

[0054] Comparison indicators Traditional push-pull sampling This program Ice crystal sample breakage rate 15％-22％ ≤5％ Single batch sampling time (minutes) 12-15 (single sample) 5 (multiple samples in parallel) Sampling displacement accuracy (mm) ±1.2 ±0.1 Cloud chamber temperature fluctuation (℃) ±2.5 ≤0.5 Incidence rate of microcracks on the edge of the slide 18％ 3％ Layered sampling height resolution (m) 1.0 0.2 Sample environment isolation effect Poor, easily affected by external interference Excellent, segmented sealing to block airflow exchange

[0055] According to Table 1, compared with the traditional push-pull sampling method, the new sampling device of this scheme has achieved significant breakthroughs in many key indicators. In terms of ice crystal sample protection, the breakage rate dropped sharply from 35%-42% to ≤5%, and the incidence of microcracks on the edge of the slide was also greatly reduced from 28% to 3%, effectively preventing the ice crystal structure from being damaged by mechanical impact. The improvement in sampling efficiency is particularly prominent. The traditional method takes 12-15 minutes for a single sample and requires resetting and waiting, while this device can complete the collection of multiple samples in parallel within 5 minutes, and the efficiency is improved by more than 2 times. At the environmental control level, the temperature fluctuation is narrowed from ±2.5℃ to ≤0.5℃, and the height resolution of stratified sampling is refined to 0.2m. Combined with the segmented sealing structure, it ensures the stability of the internal environment of the cloud chamber and provides more accurate data support for the experiment.

[0056] Example 2:

[0057] The difference from the above embodiment is that the first isolation plate 11 and the second isolation plate 602 are both filled with silica aerogel. The ultra-low thermal conductivity of silica aerogel (<0.02W / m·K) can block the cold transfer path, and its nanoporous structure remains stable at -80°C. It can not only suppress condensation and frosting caused by the temperature difference between the inside and outside of the isolation plate, but also absorb the trace vibration energy generated by mechanical movement.

[0058] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications derived therefrom remain within the scope of protection of the present invention.

Claims

1. A cloud laboratory ice crystal sampling device, comprising a cloud chamber (1), a glass slide (13) and a controller, characterized in that: A lifting mechanism is installed on the top of the cloud chamber (1); a sampling platform (2) is installed inside the cloud chamber (1), and a plurality of fixing components for fixing a slide glass (13) are installed on the top of the sampling platform (2); The lifting mechanism comprises a movable groove (5) arranged at the top of the cloud chamber (1); a movable layer (6) slidingly matched with the movable groove (5) is arranged inside the movable groove (5); a plurality of sampling channels (601) corresponding to the fixed components are opened at the top of the movable layer (6); an electric control telescopic cylinder (603) close to the bottom of the movable layer (6) is installed inside the sampling channels (601); a driving component fixedly connected to the inner bottom wall of the movable groove (5) is threadedly connected at the center position of the movable layer (6); a plurality of isolation channels (10) corresponding to the sampling channels (601) are opened at the bottom of the movable groove (5); a power component for driving the electric control telescopic cylinder (603) to lift and lower the slide glass (13) is arranged at the top of the fixed component; and the driving component and the electric control telescopic cylinder (603) are both electrically connected to a controller.

2. The device for sampling ice crystals in a cloud laboratory according to claim 1, characterized in that: The driving assembly comprises a support frame (7) arranged at the center of the movable groove (5) and slidingly matched with the movable layer (6); a motor box (8) is installed on the top of the support frame (7); a motor is installed inside the motor box (8); a threaded rod (9) is coaxially fixedly connected to the motor output shaft; the threaded rod (9) extends away from one end of the motor to the inner bottom wall of the movable groove (5) and is rotationally matched with the inner bottom wall of the movable groove (5); the threaded rod (9) is threadedly connected to the movable layer (6); and the motor is electrically connected to the controller.

3. The device for sampling ice crystals in a cloud laboratory according to claim 2, characterized in that: The fixing components include a placement table (4) fixedly connected to the top of the sampling platform (2), a placement groove is provided at the top of the placement table (4), a lifting cavity (405) extending to the interior of the sampling platform (2) is provided at the bottom of the placement groove, a lifting column (406) is slidably fitted in the lifting cavity (405), and the top of the lifting column (406) is fixedly connected to a placement box (12) for fixing the slide (13), and the placement box (12) corresponds to the placement groove.

4. The device for sampling ice crystals in a cloud laboratory according to claim 3, characterized in that: The power components all include an annular extrusion groove (401) opened at the top of the placement table (4) and extending to the inside of the sampling platform (2); an extrusion block (402) is slidably fitted inside the extrusion groove (401); a plurality of springs (403) are fixedly connected to the bottom of the extrusion groove (401); one end of the spring (403) away from the extrusion block (402) is fixedly connected to the bottom of the extrusion groove (401); a plurality of air transmission channels (404) connected to the lifting chamber (405) are opened at the bottom of the extrusion groove (401); and the extrusion blocks (402) are all located within the motion trajectory of the electrically controlled telescopic cylinder (603).

5. The device for sampling ice crystals in a cloud laboratory according to claim 4, characterized in that: An electric-controlled lifting column (3) electrically connected to a controller is installed at the bottom of the cloud chamber (1), and an output end of the electric-controlled lifting column (3) is fixedly connected to the bottom end of the sampling platform (2).

6. The device for sampling ice crystals in a cloud laboratory according to claim 5, characterized in that: A first isolation plate (11) electrically connected to the controller is installed inside the isolation channel (10).

7. The device for sampling ice crystals in a cloud laboratory according to claim 6, characterized in that: A second isolation plate (602) electrically connected to the controller is installed inside the sampling channel (601) near its top.

8. The device for sampling ice crystals in a cloud and mist laboratory according to claim 7, characterized in that: The extrusion groove (401) and the lifting cavity (405) are both filled with silicon-based hydraulic fluid.

9. The device for sampling ice crystals in a cloud laboratory according to claim 8, characterized in that: A plurality of through slots are provided on both sides of the placement box (12) in the length direction.

10. The device for sampling ice crystals in a cloud laboratory according to claim 9, characterized in that: The first isolation plate (11) and the second isolation plate (602) are both filled with silica aerogel.

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