Spatial experiment sample observation mechanism, spatial experiment device and fluid physics experiment cabinet

Abstract

The invention relates to a space experiment sample observation mechanism, a space experiment device and a fluid physics experiment cupboard, the space experiment sample observation mechanism comprises a plug connector, a sample sleeve and a first heating sheet, the first heating sheet is arranged on the sample sleeve, one end of the sample sleeve is fixed on the back side surface of the plug connector, and the other end of the sample sleeve is fixed on the back side surface of the plug connector; a sample clamping part is arranged at the other end of the sample sleeve; the sample clamping part comprises a circular-arc-shaped sample clamping piece with an opening in the upper side, a bottom connecting piece and a cylindrical sample clamping piece, the sample sleeve, the circular-arc-shaped sample clamping piece and the cylindrical sample clamping piece are coaxially arranged, and the sample sleeve, the circular-arc-shaped sample clamping piece, the bottom connecting piece and the cylindrical sample clamping piece are sequentially connected; the bottom of the arc-shaped sample clamping piece is fixedly connected with the bottom of the cylindrical sample clamping piece through a bottom connecting piece, a sample observation interval position is reserved between the arc-shaped sample clamping piece and the cylindrical sample clamping piece, and a sample observation opening position penetrating in the direction perpendicular to the axis of the cylindrical sample clamping piece is formed in the side wall of the cylindrical sample clamping piece.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of space fluid science experiments, and in particular to a space experiment sample observation mechanism, a space experiment device and a fluid physics experiment cabinet. BACKGROUND

[0002] Solid-liquid phase change is a widely existing natural phenomenon, and has wide applications in renewable energy heat storage, new energy vehicle thermal management, industrial waste heat utilization, aerospace engineering and other fields. In aerospace engineering, solid-liquid phase change is the core technology for solving the uncoordination of thermal load in time, space and intensity under extreme high-low temperature alternating environment. However, the low power density of existing space solid-liquid phase change restricts the development of space high-power energy utilization and thermal management technology, such as deep space exploration spacecraft, long-term space mission spacecraft, space-based directed energy weapons, etc. The existing bottleneck problems restricting the power density are: low thermal conductivity of phase change material, high thermal resistance of non-contact melting, and non-uniformity of solidification.

[0003] In view of the above problems, the present application mainly focuses on the scientific problem of "microgravity environment adaptive high thermal conductivity and low viscosity nano composite phase change material micro mechanism and structure construction method", uses the "complex fluid module" in the "fluid physics experiment cabinet", studies the dispersion and aggregation behavior of nano composite phase change material under space phase change thermal environment, analyzes the evolution law of microstructure and basic thermal properties such as thermal conductivity and viscosity of the material in the microgravity phase change process, and guides the optimization of phase change material structure construction. Therefore, according to the needs of scientific experiments, it is urgent to develop nano composite phase change material experiment unit and related observation mechanism, etc., to provide microgravity thermal environment for melting-solidification phase change and optical test of nano composite phase change material. SUMMARY

[0004] The present application provides a space experiment sample observation mechanism, a space experiment device and a fluid physics experiment cabinet to solve one or several technical problems existing in the prior art.

[0005] The technical solution of the present application to solve the above technical problems is as follows: the space experiment sample observation mechanism comprises a plug-in part, a sample sleeve and a first heating sheet, the first heating sheet is arranged on the sample sleeve, one end of the sample sleeve is fixed on the back side of the plug-in part, and the other end of the sample sleeve is provided with a sample clamping part.

[0006] The sample card connecting part comprises an upper open circular-arc sample card connecting piece, a bottom connecting piece and a cylindrical sample card connecting piece, the sample sleeve, the circular-arc sample card connecting piece and the cylindrical sample card connecting piece are coaxially arranged, the sample sleeve, the circular-arc sample card connecting piece, the bottom connecting piece and the cylindrical sample card connecting piece are sequentially connected, the circular-arc sample card connecting piece and the bottom of the cylindrical sample card connecting piece are connected and fixed through the bottom connecting piece, a sample observation interval is reserved between the circular-arc sample card connecting piece and the cylindrical sample card connecting piece, and a sample observation opening is formed in the sidewall of the cylindrical sample card connecting piece and penetrates through the cylindrical sample card connecting piece in a direction perpendicular to the axis of the cylindrical sample card connecting piece.

[0007] The space experiment sample observation mechanism has the advantages that the nanocomposite phase change material sample to be studied can be installed in the circular-arc sample card connecting piece or the cylindrical sample card connecting piece, the first heating sheet can be used to provide a constant temperature environment for the sample, the microgravity thermal environment for optical testing of the nanocomposite phase change material is provided, the solid-liquid phase change process of the nanocomposite phase change material is beneficial to be studied, the evolution law of the microstructure of the material in the microgravity phase change process and basic thermal properties such as thermal conductivity and viscosity is analyzed, and a new high-power-density space solid-liquid phase change mechanism is proposed based on the academic ideas of improving thermal performance of the nanocomposite phase change material, strengthening heat transfer of contact melting heat and actively regulating dynamic solidification.

[0008] Based on the above technical solution, the application can be further improved as follows.

[0009] Further, the inner side of the free end of the circular-arc sample card connecting piece is provided with an upwardly open U-shaped limiting piece, and a first limiting groove penetrating through the circular-arc sample card connecting piece in the axial direction is formed in the U-shaped limiting piece.

[0010] The above further scheme has the advantages that the turbidity analysis sample can be clamped in the first limiting groove through the U-shaped limiting piece, and the turbidity analysis sample can be detected and analyzed by the turbidity detection equipment near the sample observation interval.

[0011] Further, a third limiting elastic sheet is arranged at the opening of the first limiting groove, the third limiting elastic sheet has a convex circular-arc structure, and the free end of the third limiting elastic sheet extends downward.

[0012] The above further scheme has the advantages that the third limiting elastic sheet is arranged to facilitate elastic clamping and limiting of the turbidity analysis sample in the first limiting groove of the U-shaped limiting piece.

[0013] Further, a second limiting groove penetrating through the circular-arc sample card connecting piece in the axial direction is formed in the upper side of the bottom connecting piece, and the second limiting groove is in communication with the first limiting groove.

[0014] The beneficial effect of the further scheme is that the second limiting groove is arranged to facilitate cooperation with the first limiting groove, thereby further limiting the bottom of the turbidity analysis sample.

[0015] Further, the end of the cylindrical sample clamping piece away from the bottom connecting piece is a sample insertion interface, a plurality of clamping hole are arranged on the side wall of the end of the cylindrical sample clamping piece close to the bottom connecting piece, a clamping piece is connected to the inner wall of the hole close to the sample insertion interface, the clamping piece is arranged in the clamping hole and can be offset to the inside or outside of the cylindrical sample clamping piece under stress, and a clamping protrusion is arranged on the inner side wall of the end of the clamping piece away from the sample insertion interface.

[0016] The beneficial effect of the further scheme is that the clamping hole and the clamping piece are arranged to facilitate stable clamping and limiting of the light scattering detection sample, and facilitate detection of the light scattering detection sample through the sample observation opening.

[0017] Further, the clamping hole is a long strip structure parallel to the axis of the cylindrical sample clamping piece, a limiting protrusion is arranged on the inner side wall of the end of the cylindrical sample clamping piece close to the bottom connecting piece, and the limiting protrusion is located between the clamping protrusion and the bottom connecting piece.

[0018] The outer side wall of the other end of the sample sleeve is provided with two limiting convex strips arranged in a circumferential interval, a limiting interval is formed between the two limiting convex strips in the circumferential direction, and the first heating sheet is provided with a clamping piece arranged in the limiting interval in the axial direction.

[0019] The beneficial effect of the further scheme is that the limiting convex strip is arranged to avoid circumferential rotation of the first heating sheet on the outer side wall of the sample sleeve.

[0020] Further, the first heating sheet comprises a heating sleeve and a heating half pipe connected coaxially, the heating sleeve is arranged outside the sample sleeve, and the heating half pipe is arranged outside the outer side wall of the circular-arc-shaped sample clamping piece.

[0021] The beneficial effect of the further scheme is that the heating sleeve and the heating half pipe can effectively heat the sample to be analyzed.

[0022] The space experiment device comprises a shell and the space experiment sample observation mechanism, the insertion piece is slidably connected to the inner side of the shell and arranged in the shell, a through hole is arranged on the back side of the shell for the sample clamping part to pass through, and when the space experiment sample observation mechanism is installed in the shell, the sample clamping part passes through the through hole and is located outside the shell.

[0023] The beneficial effects of the present application are: the space experiment device of the present application, by slidingly connecting the plug-in part in the shell, it is convenient to pull out the added sample from the shell, and push it into the shell for detection; the sample clamping part is located outside the shell, which is convenient for detection by the detection equipment on the back of the shell.

[0024] Further, the shell is provided with a temperature control mechanism, the first temperature sensor and the second temperature sensor are respectively arranged on the arc-shaped sample clamping part and the cylindrical sample clamping part, and the first temperature sensor, the second temperature sensor and the first heating sheet are electrically connected with the temperature control mechanism.

[0025] The beneficial effects of the above further scheme are: by setting the temperature sensor and the temperature control mechanism, the temperature of the arc-shaped sample clamping part and the cylindrical sample clamping part can be conveniently controlled by the first heating sheet.

[0026] The fluid physical experiment cabinet comprises the above-mentioned space experiment device, and further comprises an experiment cabinet body, the shell is fixed in the experiment cabinet body from front to back, the back of the inside of the experiment cabinet body is provided with a detection channel arranged from front to back, the part of the space experiment sample observation mechanism extending from the back side of the shell is arranged in the detection channel, the channel opening of the detection channel is provided with a turbidity detection device, the both sides of the detection channel are provided with light scattering detection devices, and the first light path of the turbidity detection device and the second light path of the light scattering detection device are both arranged perpendicular to the axis of the detection channel.

[0027] The beneficial effects of the present application are: the fluid physical experiment cabinet of the present application can set related detection devices on the back of the inside of the experiment cabinet body, and detect the sample in the sample clamping part of the space experiment sample observation mechanism, and the space experiment sample observation mechanism can be directly pushed into the shell to reach the detection position on the back of the inside of the experiment cabinet body, which is very convenient and has high detection precision. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The space experiment sample observation mechanism of the present application is shown in the schematic view of the three-dimensional structure Figure 1 ;

[0029] Figure 2 The space experiment sample observation mechanism of the present application is shown in the schematic view of the three-dimensional structure Figure 1 ;

[0030] Figure 3 The space experiment sample observation mechanism of the present application is shown in the schematic view of the three-dimensional structure Figure 2 ;

[0031] Figure 4 The space experiment sample observation mechanism of the present application is shown in the schematic view of the three-dimensional structure Figure 3 ;

[0032] Figure 5 It is a main view structural schematic diagram of the space experiment sample observation mechanism of the present application.

[0033] Figure 6 It is a structural schematic diagram of the space experiment device of the present application. Figure 1 ;

[0034] Figure 7 It is a structural schematic diagram of the space experiment device of the present application. Figure 2 ;

[0035] Figure 8 It is a structural schematic diagram of the space experiment device of the present application. Figure 3 ;

[0036] Figure 9 It is an assembly structural schematic diagram of the shell and the space experiment sample observation mechanism in the experiment cabinet body.

[0037] In the drawings, the component list represented by each sign is as follows:

[0038] 100, shell; 101, observation mechanism plug-in channel;

[0039] 200, space experiment sample observation mechanism; 201, plug-in piece; 202, sample sleeve; 203, first heating sheet; 204, circular-arc sample clamping piece; 205, bottom connecting piece; 206, cylindrical sample clamping piece; 207, sample observation interval; 208, sample observation opening position; 209, U-shaped limiting piece; 210, first limiting groove; 211, third limiting elastic sheet; 212, second limiting groove; 213, sample plug-in port; 214, clamping sheet; 215, clamping protrusion; 216, limiting protrusion; 217, limiting convex strip; 218, clamping sheet;

[0040] 500, experiment cabinet body; 501, first light path; 502, second light path; 503, guide rail. DETAILED DESCRIPTION

[0041] The principles and characteristics of the present application are described below in combination with the drawings, and the examples are only used to explain the present application, and are not used to limit the scope of the present application.

[0042] As Figures 1-5As shown in the drawings, the space experiment sample observation mechanism of the embodiment comprises a plug-in part 201, a sample sleeve and a first heating sheet 203 arranged on the sample sleeve 202, one end of the sample sleeve 202 is fixed on the back side of the plug-in part 201, and the other end of the sample sleeve 202 is provided with a sample clamping part; the sample clamping part comprises an upper-side open circular-arc sample clamping part 204, a bottom connecting part 205 and a cylindrical sample clamping part 206, the sample sleeve 202, the circular-arc sample clamping part 204 and the cylindrical sample clamping part 206 are coaxially arranged, the sample sleeve 202, the circular-arc sample clamping part 204, the bottom connecting part 205 and the cylindrical sample clamping part 206 are sequentially connected, the circular-arc sample clamping part 204 and the bottom of the cylindrical sample clamping part 206 are connected and fixed through the bottom connecting part 205, a sample observation interval 207 is reserved between the circular-arc sample clamping part 204 and the cylindrical sample clamping part 206, and a sample observation opening 208 penetrating in the direction perpendicular to the axis of the cylindrical sample clamping part 206 is formed in the side wall of the cylindrical sample clamping part 206.

[0043] In one specific scheme of the embodiment, four sample observation openings 208 are formed in the side wall of the cylindrical sample clamping part 206, and the sample observation openings 208 are arranged oppositely in pairs for light transmission observation.

[0044] As shown in the drawings, Figure 1 and Figure 3 As shown in the drawings, a slide rail is arranged on the peripheral side wall of the plug-in part 201, specifically, a slide rail parallel to the axial direction of the sample sleeve 202 is arranged at the bottom of the plug-in part 201, so that the plug-in part 201 can be conveniently plugged in and pulled out in the shell, and an operating handle is arranged on the front panel of the plug-in part 201, and the front panel of the plug-in part 201 can be connected and fixed to the front side of the shell through a detachable screw.

[0045] As shown in the drawings, Figures 1-5 the free end of the circular-arc sample clamping part 204 is provided with a U-shaped limiting part 209 with an upward opening, and a first limiting groove 210 penetrating in the axial direction of the circular-arc sample clamping part 204 is formed in the U-shaped limiting part 209. By arranging the U-shaped limiting part, the turbidity analysis sample can be clamped in the first limiting groove, and the turbidity detection equipment near the sample observation interval can be used to detect and analyze the turbidity analysis sample.

[0046] As shown in the drawings, Figures 1-4 the opening of the first limiting groove 210 is provided with a third limiting elastic sheet 211, the third limiting elastic sheet 211 is in the form of a convex circular-arc structure, and the free end of the third limiting elastic sheet 211 extends downward. By arranging the third limiting elastic sheet, the turbidity analysis sample in the first limiting groove of the U-shaped limiting part can be conveniently elastically clamped and limited.

[0047] like Figures 1-4 As shown, the upper side of the bottom connector 205 of this embodiment is provided with a second limiting groove 212 extending axially through the arc-shaped sample clamping member 204. The second limiting groove 212 is connected to the first limiting groove 210. The second limiting groove facilitates cooperation with the first limiting groove to further limit the bottom of the turbidity analysis sample.

[0048] like Figures 1-4 As shown, the end of the cylindrical sample connector 206 facing away from the bottom connector 205 is a sample insertion port 213. A plurality of latching holes are formed on the sidewall of the end of the cylindrical sample connector 206 near the bottom connector 205. A clamping piece 214 is connected to the inner wall of the latching hole near the sample insertion port 213. The clamping piece 214 fits within the latching hole and can deflect toward the inside or outside of the cylindrical sample connector 206 when subjected to force. A latching protrusion 215 is formed on the inner wall of the end of the clamping piece 214 away from the sample insertion port 213. The provision of the latching holes and the clamping piece facilitates stable, position-limited latching of light scattering detection samples and facilitates testing of light scattering detection samples using the sample observation opening.

[0049] like Figures 1-4 As shown, the positioning hole of this embodiment is an elongated strip structure parallel to the axis of the cylindrical sample clamp 206. A limiting protrusion 216 is provided on the inner sidewall of one end of the cylindrical sample clamp 206 near the bottom connector 205. The limiting protrusion 216 is located between the clamping protrusion 215 and the bottom connector 205. Two circumferentially spaced limiting ridges 217 are provided on the outer sidewall of the other end of the sample sleeve 202. A limiting interval is formed circumferentially between the two limiting ridges 217. A clamping plate 218 is provided axially on the first heating plate 203 to fit within the limiting interval. The provision of the limiting ridge prevents the first heating plate from rotating circumferentially on the outer sidewall of the sample sleeve. The test sample is inserted into the cylindrical sample clamp 206 through the sample insertion port 213. The test sample abuts the clamping protrusion 215, pushing the clamping plate 214 outward, thereby clamping the test sample. The test sample can abut against the limiting protrusion 216 .

[0050] like Figures 1-4 As shown, the first heating plate 203 of this embodiment comprises a coaxially connected heating sleeve and heating half-tube. The heating sleeve is mounted on the outside of the sample sleeve 202, and the heating half-tube is adapted to wrap around the outer wall of the arc-shaped sample clamp 204. The heating sleeve and heating half-tube can effectively heat the sample to be analyzed, maintaining the sample temperature at the required detection temperature and keeping the sample in a liquid state, for example, 42°C ± 1°C.

[0051] The space experiment sample observation mechanism of the embodiment is applied in a fluid physics experiment cabinet, can install the nanocomposite phase change material sample to be researched in the circular arc sample clamping piece or the cylindrical sample clamping piece, can provide a constant temperature environment for the sample by the first heating sheet, is used for providing the microgravity thermal environment of the nanocomposite phase change material optical test, is favorable for researching the solid-liquid phase change process of the nanocomposite phase change material, analyzing the evolution law of the microstructure and the basic thermal properties such as thermal conductivity / viscosity of the microgravity phase change process material, starting from the academic ideas of nanocomposite phase change material thermal performance improvement, contact melting heat mass transfer intensification, dynamic solidification active regulation, and proposing a new high-power density space solid-liquid phase change mechanism of guarding the orthodox and innovating.

[0052] As shown in Figures 6-8 The space experiment device of the embodiment includes a shell 100 and the above-mentioned space experiment sample observation mechanism 200, the bottom of the plug-in part 201 is slidably connected to the inside of the shell 100 and is arranged in the shell 100 and can be pulled forward and backward, a through hole for the sample clamping part to pass through is arranged on the back side of the shell 100, when the space experiment sample observation mechanism 200 is installed in the shell 100, the sample clamping part passes through the through hole and is located outside the shell 100, as shown in Figure 6 The circular arc sample clamping piece 204 and the cylindrical sample clamping piece 206 are both located outside the shell 100, so as to facilitate the detection of the sample by the detection equipment on the experiment cabinet.

[0053] Specifically, as shown in Figure 8 The shell 100 has an observation mechanism plug-in channel 101, the space experiment sample observation mechanism 200 can be slidably plugged into the observation mechanism plug-in channel 101, and the bottom of the observation mechanism plug-in channel 101 is provided with a sliding groove extending forward and backward, and the bottom of the space experiment sample observation mechanism 200 is slidably connected to the sliding groove.

[0054] Further, the shell 100 is provided with a temperature regulation mechanism, the circular arc sample clamping piece 204 and the cylindrical sample clamping piece 206 are respectively provided with a first temperature sensor and a second temperature sensor, and the first temperature sensor, the second temperature sensor and the first heating sheet 203 are electrically connected to the temperature regulation mechanism. The first temperature sensor can be arranged on the upper surface of the U-shaped limiting piece 209, and the second temperature sensor can be arranged on the outer side of the cylindrical sample clamping piece 206; by arranging the temperature sensor and the temperature regulation mechanism, the temperature of the circular arc sample clamping piece and the cylindrical sample clamping piece can be regulated by the first heating sheet.

[0055] Among them, the temperature control mechanism can select a constant temperature control mechanism commonly used on the market. This embodiment provides an optional temperature control mechanism, including a power supply board, a main control board, an acquisition board and a temperature control board. The power supply board is electrically connected to the main control board, the acquisition board and the temperature control board respectively. The main control board is electrically connected to the acquisition board and the temperature control board respectively. The acquisition board is electrically connected to the first temperature sensor and the second temperature sensor respectively, and is used to collect the temperature signals detected by the first temperature sensor and the second temperature sensor and send them to the temperature control board. The temperature control board is electrically connected to the heating plate and starts the heating plate for heating or stops the heating plate under the control of the main control board.

[0056] The space experiment device of this embodiment facilitates the extraction of added samples from the shell and the pushing of samples into the shell for testing by sliding the connector inside the shell; the sample clamping part is located outside the shell to facilitate testing using the testing equipment on the back of the shell.

[0057] like Figure 9 As shown, a fluid physics experiment cabinet of this embodiment includes the above-mentioned space experiment device and an experiment cabinet body 500. The housing 100 is inserted and fixed in the experiment cabinet body 500 from front to back. The back of the interior of the experiment cabinet body 500 is provided with a front-to-back detection channel. The portion of the structure of the space experiment sample observation mechanism 200 extending from the back side of the housing 100 is placed in the detection channel. A turbidity detection device is provided at the channel entrance of the detection channel. Light scattering detection devices are provided on both sides of the detection channel. The first optical path 501 of the turbidity detection device and the second optical path 502 of the light scattering detection device are both arranged perpendicular to the axis of the detection channel. The experiment cabinet body 500 has a guide rail 503 extending front to back. The bottom of the housing 100 is formed with a guide groove arranged front to back. The guide groove is adapted to be provided on the guide rail 503 and can slide back and forth along the guide rail 503.

[0058] The light scattering detection device and the turbidity detection device in this embodiment can both be conventional devices capable of performing light scattering detection and turbidity detection.

[0059] The fluid physics experiment cabinet of this embodiment can be equipped with relevant detection equipment on the inner back of the experiment cabinet body, and the samples in the sample clamping part of the space experiment sample observation mechanism can be detected. The space experiment sample observation mechanism can be directly pushed into the shell to reach the detection position on the inner back of the experiment cabinet body, which is very convenient and has high detection accuracy.

[0060] In the description of the application, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the application.

[0061] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0062] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0063] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0064] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0065] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A space experiment sample observation mechanism, characterized in that: The sample sleeve comprises a connector, a sample sleeve and a first heating plate, wherein the first heating plate is arranged on the sample sleeve, one end of the sample sleeve is fixed on the back side of the connector, and the other end of the sample sleeve is provided with a sample clamping portion; The sample clamping part includes an arc-shaped sample clamping part with an open upper side, a bottom connecting part and a cylindrical sample clamping part. The sample sleeve, the arc-shaped sample clamping part and the cylindrical sample clamping part are coaxially arranged. The sample sleeve, the arc-shaped sample clamping part, the bottom connecting part and the cylindrical sample clamping part are connected in sequence. The arc-shaped sample clamping part and the bottom of the cylindrical sample clamping part are connected and fixed through the bottom connecting part. A sample observation spacing position is reserved between the arc-shaped sample clamping part and the cylindrical sample clamping part. A sample observation opening position is opened on the side wall of the cylindrical sample clamping part and passes through in a direction perpendicular to its own axis.

2. The space experiment sample observation mechanism according to claim 1, characterized in that: A U-shaped limiting piece with an upward opening is provided on the inner side of the free end of the arc-shaped sample clamping piece, and a first limiting groove is formed in the U-shaped limiting piece and passes through the arc-shaped sample clamping piece axially.

3. The space experiment sample observation mechanism according to claim 2, characterized in that: A third limiting spring piece is provided at the opening of the first limiting groove. The third limiting spring piece is in an outwardly convex arc-shaped structure, and the free end of the third limiting spring piece is extended downward.

4. The space experiment sample observation mechanism according to claim 2, characterized in that: A second limiting groove is formed on the upper side surface of the bottom connecting piece and passes through the arc-shaped sample clamping piece axially, and the second limiting groove is communicated with the first limiting groove.

5. The space experiment sample observation mechanism according to claim 1, characterized in that: The end of the cylindrical sample clamp facing away from the bottom connector is a sample insertion interface, and a plurality of clamping holes are provided on the side wall of the end of the cylindrical sample clamp close to the bottom connector. A clamping piece is connected to the inner wall of the clamping hole close to the sample insertion interface, and the clamping piece is adapted to be arranged in the clamping hole and can be offset to the inner side or outer side of the cylindrical sample clamp when subjected to force, and a clamping protrusion is provided on the inner side wall of the end of the clamping piece away from the sample insertion interface.

6. The space experiment sample observation mechanism according to claim 5, characterized in that: The clamping hole is a long strip structure parallel to the axis of the cylindrical sample clamping piece; a limiting protrusion is provided on the inner side wall of one end of the cylindrical sample clamping piece close to the bottom connecting piece, and the limiting protrusion is located between the clamping protrusion and the bottom connecting piece; Two circumferentially spaced limiting ridges are provided on the outer side wall of the other end of the sample sleeve, forming a circumferential limiting interval between the two limiting ridges. A clamping piece adapted to be disposed in the limiting interval is provided in the axial direction of the first heating plate.

7. The space experiment sample observation mechanism according to claim 1, characterized in that: The first heating plate includes a heating sleeve and a heating half-tube that are coaxially connected as one body. The heating sleeve is sleeved on the outside of the sample sleeve, and the heating half-tube is adapted to be wrapped around the outer side wall of the arc-shaped sample clamp.

8. Space experimental device, characterized in that, It comprises a shell and the space experiment sample observation mechanism according to any one of claims 1 to 7, the bottom of the connector is slidably connected to the inner side of the shell and can be pulled back and forth inside the shell, a through hole for the sample clamping part to pass through is provided on the back side of the shell, and when the space experiment sample observation mechanism is installed in the shell, the sample clamping part passes through the through hole and is located outside the shell.

9. The space experiment device according to claim 8, characterized in that: A temperature control mechanism is provided in the housing. A first temperature sensor and a second temperature sensor are provided on the arc-shaped sample connector and the cylindrical sample connector, respectively. The first temperature sensor, the second temperature sensor and the first heating plate are electrically connected to the temperature control mechanism, respectively.

10. Fluid physics experiment cabinet, characterized in that, It includes the space experiment device described in claim 8 or 9, and also includes an experimental cabinet body, the shell is inserted and fixed in the experimental cabinet body from front to back, the inner back side of the experimental cabinet body is provided with front and rear arranged detection channels, the part of the structure of the space experiment sample observation mechanism extending from the back side of the shell is placed in the detection channel, a turbidity detection device is provided at the channel mouth of the detection channel, and light scattering detection devices are provided on both sides of the detection channel, and the first optical path of the turbidity detection device and the second optical path of the light scattering detection device are both arranged perpendicular to the axis of the detection channel.

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