CN112255004B - Axial buckling metal sealing deep space sampling packaging device and leakage rate monitoring packaging system - Google Patents
Axial buckling metal sealing deep space sampling packaging device and leakage rate monitoring packaging system Download PDFInfo
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- CN112255004B CN112255004B CN202011031391.5A CN202011031391A CN112255004B CN 112255004 B CN112255004 B CN 112255004B CN 202011031391 A CN202011031391 A CN 202011031391A CN 112255004 B CN112255004 B CN 112255004B
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
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- G—PHYSICS
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- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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- G—PHYSICS
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention relates to an axial buckling metal sealing deep space sampling and packaging device and a leakage rate monitoring and packaging system. According to the invention, the metal buckling structure capable of generating axial elastic deformation is utilized, so that the metal buckling structure is deformed and then is abutted against the upper end face of the outer barrel and the inner end face of the end cover, and the sealing function is realized.
Description
Technical Field
The invention relates to the technical field of deep space detection sampling packaging, in particular to an axial buckling metal sealing deep space sampling packaging device and a leakage rate monitoring packaging system.
Background
The deep space sampling packaging technology is an important issue in the field of deep space exploration, samples returned by deep space exploration sampling have important scientific research value, scientists in all countries in the world can carry out systematic research work on soil, rock or liquid samples returned by deep space sampling, and the purity of the deep space exploration samples and the precision of a packaging device can directly influence the progress direction of planet scientific research. In the relevant scientific research of Mars exploration, a great amount of creative design research is carried out on a sampling return packaging system in the United states, and various deep space exploration sample packaging ideas are provided. In the Mars sampling plan of the United states, principle models of various packaging structures are designed, and the principle models comprise metal memory alloy sealing, metal melting welding sealing, cold welding sealing and the like. In the detector of falcon No. 2 in Japan, a metal extrusion sealing mode is adopted, and the special physical properties of pure metal aluminum and aluminum alloy are utilized, so that the two materials generate elastic and plastic deformation in the extrusion process, the sample leakage rate is effectively reduced, and the expected effect is achieved. With the continuous maturity of deep space exploration technology in China, in the future, soil and rock samples can be returned in asteroid exploration and mars exploration, and how to design a packaging device meeting scientific research requirements becomes a problem to be solved urgently.
The falcon # 2 reentry capsule is dish-shaped, and total mass is 16.5 kg, and about 40 centimetres wide by about 22 centimetres high, and the sample packaging device is placed in reentry capsule central point. The front side and the rear side of the returning capsule are covered with clapboards made of carbon fiber composite materials, a carbonized phenolic aldehyde etching agent heat insulation cover is used for protecting the sample packaging device, the parachute and related devices from being heated when the atmosphere enters, the returning capsule carries the sample packaging device to return to the earth, the sample packaging device enters the atmosphere again at the speed of 12 km/s, and the reentry angle is 12 degrees. After the sampling operation of the sample packaging device is completed, the sealing operation is completed by using aluminum alloy-pure aluminum extrusion and high-low temperature rubber. Packaging hardware end cover department is provided with the spring, can compress tightly the end cover through spring pressure, after the end cover targets in place, utilize teflon material preparation isolation layer and external isolated, make the sampling sample not influenced by other factors such as dust particle, the pressure of spring will make softer pure aluminium of metal and harder aluminum alloy produce extrusion deformation in sealed face department, under the extrusion force effect that the end cover spring was applyed, extrusion deformation causes pure aluminium's elasticity, plastic deformation, the pure aluminium as sealing material produces great deformation, fill the notch on the lid and realize high vacuum seal, pure aluminium metal successfully figuring in sealed face department, and then prevent that the sample from revealing.
The re-entry capsule has a mechanical and electrical interface with a spacecraft, hawk No. 2, and electronics are radially arranged around the enclosure to transfer samples from the spacecraft and exchange data, commands and power throughout the flight and to operate the thrusters of the re-entry capsule. The re-entry capsule is provided with a test system which can analyze and monitor various accelerations, temperatures and the like in the capsule so as to estimate the encapsulation state of the sample. There are placed 1 3-axis accelerometer unit, 1 rate sensor unit and 13 temperature probes. The accelerometer operates at a sampling rate of 125Hz and can measure accelerations up to 50G. The rate sensor is able to track 200 deg./s movement in any direction. The heat monitoring system in the return cabin comprises 9 sensors, the measurement is carried out at the speed of 1 time per second, the operation temperature of the whole system is-50-600 ℃, and the precision is +/-3 ℃.
Falcon bird number encapsulation container only uses the single-stage seal based on metal extrusion to carry out the encapsulation design, in case there may be the lower problem of sealed container reliability, in case the sealed face of metal extrusion seal became invalid, whole container will take place to leak, can't accomplish encapsulation and transportation task smoothly.
After asteroid or mars sampling is carried out, soil samples are placed in the sealed bottles, the samples are not pressurized, the soil layers of the sample soil are possibly mixed in sequence, classification research on the soil layers cannot be carried out after the samples return to the ground, and the quality of scientific research is affected.
Disclosure of Invention
The invention aims to solve the technical problems that in the prior art, the reliability of a sealing surface is low and the order of a sample cannot be preserved in the deep space detection and sampling process, and provides an axial buckling metal sealing deep space sampling and packaging device and a leakage rate monitoring and packaging system.
The technical scheme for solving the technical problems is as follows: the utility model provides an axial bucking metal seal deep space sampling packaging hardware, includes end cover, inner tube and urceolus, the inner tube cover is established in the urceolus, elastic connection between inner tube bottom and the urceolus bottom, the connection can be dismantled to the end cover is in the urceolus upper end, the inner tube upper end is connected with round metal buckling structure, the end cover extrusion metal buckling structure makes it take place behind the axial elastic deformation respectively the butt be in on urceolus upper end terminal surface and the end cover terminal surface.
The invention has the beneficial effects that: according to the invention, the metal buckling structure capable of generating axial elastic deformation is utilized, so that the metal buckling structure is deformed and then is abutted against the upper end face of the outer barrel and the inner end face of the end cover, and the sealing function is realized.
On the basis of the technical scheme, the invention can be further improved as follows.
Furthermore, a circle of annular groove is formed in the inner end face of the end cover, the upper end of the metal buckling structure is arranged in the annular groove, and the metal buckling structure is elastically abutted to the bottom wall and the side wall of the annular groove after being elastically deformed in the axial direction.
The beneficial effect of adopting the further scheme is that: the metal buckling structure is limited in the annular groove and is in close contact with the annular groove, and the sealing function is further realized.
Furthermore, a circle of shoulder is formed on the inner side wall of the end cover, the annular groove is located on the inner side of the shoulder, and the side wall of the shoulder is used as the side wall of the annular groove to be in elastic abutment with the metal buckling structure after the axial elastic deformation; when the end cover is connected to the upper end of the outer cylinder, the bottom wall of the shoulder abuts against the upper end face of the outer cylinder.
The beneficial effect of adopting the further scheme is that: the shoulder structure enables the connection between the end cover and the outer cylinder to be compact, and the sealing effect is better.
Furthermore, the cross section of the metal buckling structure is in a shape like the Chinese character '3', a preset part is arranged at the upper end of the metal buckling structure, and the thickness of the metal buckling structure is smaller than that of the preset part.
The beneficial effect of adopting the further scheme is that: the metal buckling structure with the structure can be in close contact with the side wall and the bottom wall of the annular groove after being extruded and deformed, and the elastic deformation is good.
Furthermore, the metal buckling structure comprises elastic pieces which are symmetrically arranged up and down, a convex rib is arranged between the upper elastic piece and the lower elastic piece, and the upper elastic piece and the lower elastic piece are bent outwards respectively by taking the convex rib as a boundary; after the metal buckling structure is subjected to axial elastic deformation, the upper elastic sheet and the lower elastic sheet continue to be bent and folded outwards by taking the convex rib as a boundary, the bent and folded part is elastically abutted against the side wall of the annular groove, and the upper end of the elastic sheet above the upper elastic sheet is elastically abutted against the bottom wall of the annular groove.
The beneficial effect of adopting the further scheme is that: the arrangement of the convex ribs enables the two elastic pieces to be bent and deformed more easily in the set direction.
Furthermore, the upper end of the outer cylinder extends inwards to form a circle of inner edge, and the inner edge is in threaded connection with the outer side wall of the upper end of the inner cylinder; and after the metal buckling structure is subjected to axial elastic deformation, the lower end of the metal buckling structure is elastically abutted against the upper end face of the inner edge.
The beneficial effect of adopting the further scheme is that: the setting of interior edge is favorable to providing the bottom sprag for metal buckling structure, has also further increased the area of contact of metal buckling structure with the urceolus, promotes sealed effect.
Furthermore, a plurality of concave rings which are sequentially arranged up and down are formed on the side wall of the inner cylinder, and the concave rings are arranged along the circumferential direction of the inner cylinder; the inner cylinder and the outer cylinder are arranged at intervals, and foaming materials or lubricating oil are arranged in the intervals; the outer barrel is characterized in that a mounting hole is formed in the side wall of the outer barrel, and a pin is arranged in the mounting hole. When the foaming material is arranged in the interval, the foaming material can be punctured by a pin to be expanded, and the expanded foaming material can extrude the concave ring to continuously recess into the inner cylinder. When lubricating oil is arranged in the interval, the mounting hole can be opened, the lubricating oil is filled into the interval to apply pressure to the inner barrel, and the concave ring is extruded to continue sinking into the inner barrel.
The beneficial effect of adopting the further scheme is that: after the soil in the inner cylinder is filled, a astronaut screws the pin inwards, the pin pierces the package of the foaming material, the foaming material expands rapidly, the foaming material expands to fill the gap between the inner cylinder and the outer cylinder, so that the pressure between the inner cylinder and the outer cylinder is increased, the concave ring on the inner cylinder further bends inwards, the soil in the inner cylinder is pressed, the soil sequence is ensured, and the scientist can analyze the sample; the foaming material also has the function of shock absorption.
Furthermore, a plurality of sections of external threads which are circumferentially arranged at intervals are arranged at the upper end of the outer side wall of the outer barrel, a plurality of sections of internal threads which are circumferentially arranged at intervals are arranged on the inner side wall of the end cover, and the end cover and the outer barrel are in threaded connection through the internal threads and the external threads; the internal thread and the external thread are of double-thread structures respectively.
The beneficial effect of adopting the further scheme is that: the end cover and the outer barrel are connected through threads, four sections of double-thread internal threads can be arranged at the end cover, four sections of double-thread external threads can be arranged at the upper end of the outer barrel, threads of the end cover are not mutually meshed when the end cover is not screwed up with the outer barrel, internal threads of the end cover are clamped into the external threads of the outer barrel when the end cover is screwed up, and the reliability of the threaded connection is greatly increased due to the double-thread combination.
Further, the urceolus includes urceolus body and spring base, spring base installs urceolus body bottom, spring base pass through the spring with inner tube bottom elastic connection.
The beneficial effect of adopting the further scheme is that: the spring base is in threaded connection with the outer cylinder, and after the end covers are buckled, the spring can pressurize the bottom of the inner cylinder, so that the order keeping effect is achieved.
The utility model provides a leak rate monitoring packaging system, includes the reentry module and installs respectively axial buckling metal seal deep space sampling packaging hardware, image monitoring device, temperature sensor, pressure sensor, gaseous detection device and terminal controller in the reentry module, image monitoring device, temperature sensor, pressure sensor and gaseous detection device are used for monitoring soil leakage condition, temperature, pressure and oxygen content in the reentry module respectively to feedback to terminal controller through data transmission module.
The invention has the beneficial effects that: the sample is placed in the encapsulation system that has monitoring function, detects the leak rate through the soil content that detects in the unit volume, if meet the encapsulation and reveal scheduling problem, can in time carry out the sample and encapsulate again.
Drawings
FIG. 1 is a schematic diagram of a three-dimensional explosion structure of an axially curved metal-sealed deep space sampling package device according to the present invention;
FIG. 2 is a schematic structural view of the axial buckling metal sealing deep space sampling and packaging device of the present invention with the inner barrel not buckled;
FIG. 3 is a schematic structural view of the axial buckling metal sealing deep space sampling and packaging device of the present invention when the inner cylinder buckles;
FIG. 4 is a schematic view illustrating a process of deforming a metal buckling structure according to the present invention;
FIG. 5 is a block diagram of the leak rate monitoring package system according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. an end cap; 11. an annular groove; 12. a shoulder;
2. an inner barrel; 21. a concave ring; 22. spacing;
3. an outer cylinder; 31. an inner edge; 32. an external thread; 33. an outer cylinder body; 34. a spring mount; 35. a spring; 36. mounting holes;
4. a metal buckling structure; 41. an elastic sheet; 42. a rib is protruded; 43. a preset;
5. a pin.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth to illustrate, but are not to be construed to limit the scope of the invention.
Example 1
As shown in fig. 1-5, the axial buckling metal sealing deep space sampling and packaging device of the present embodiment includes an end cover 1, an inner tube 2 and an outer tube 3, the inner tube 2 is sleeved in the outer tube 3, the bottom of the inner tube 2 is elastically connected with the bottom of the outer tube 3, the end cover 1 is detachably connected to the upper end of the outer tube 3, the upper end of the inner tube 2 is connected with a circle of metal buckling structure 4, and the end cover 1 extrudes the metal buckling structure 4 to make it generate axial elastic deformation and then respectively abut against the upper end face of the outer tube 3 and the inner end face of the end cover 1. Wherein, the metal buckling structure 4 can be made of 304 stainless steel, the thickness can be 0.3-0.8mm, preferably 0.5mm, and the rigidity of the metal buckling structure 4 is small, which is beneficial to buckling deformation and deformation recovery. The metal buckling and sealing process can be repeated for multiple times, and the whole device can be opened and closed for multiple times.
In the embodiment, the metal buckling structure capable of generating axial elastic deformation is utilized, so that the metal buckling structure is abutted to the upper end face of the outer barrel and the inner end face of the end cover after being deformed, shaping is effectively carried out, and a sealing function is realized.
As shown in fig. 2 to 4, a circle of annular groove 11 is formed on an inner end surface of the end cover 1 in this embodiment, the upper end of the metal buckling structure 4 is disposed in the annular groove 11, and the metal buckling structure 4 elastically deforms in the axial direction and then elastically abuts against the bottom wall and the side wall of the annular groove 11. The metal buckling structure is limited in the annular groove and is in close contact with the annular groove, and the sealing function is further realized. The triggering process of the metal buckling structure is very simple, the end cover only needs to be screwed down, and the pressure on the two sides enables the thin-wall inner cylinder to automatically enter the annular groove of the end cover. The whole process does not need too much force, and astronauts or mechanical arms can be easily carried out after asteroid or deep space sampling is finished.
As shown in fig. 2 to 4, a circle of shoulder 12 is formed on the inner side wall of the end cover 1 of the present embodiment, the annular groove 11 is located inside the shoulder 12, and the side wall of the shoulder 12 is used as the side wall of the annular groove 11 to elastically abut against the metal buckling structure 4 after being elastically deformed in the axial direction; when the end cap 1 is connected to the upper end of the outer cylinder 3, the bottom wall of the shoulder 12 abuts against the upper end surface of the outer cylinder 3. The shoulder structure enables the connection between the end cover and the outer cylinder to be compact, and the sealing effect is better.
As shown in fig. 2 to 4, the cross section of the metal buckling structure 4 of this embodiment is "3", a preset piece 43 is disposed at the upper end of the metal buckling structure 4, and the thickness of the metal buckling structure 4 is smaller than that of the preset piece 43. 2-4, due to the difference of the cross section position, it presents the '3' shape of left and right mirror image, the metal buckling structure of this structure can contact with the side wall and the bottom wall of the ring groove tightly after being pressed and deformed, and the elastic deformation is good. The thickness of the elastic sheet 41 on the metal buckling structure 4 is smaller than that of the preset piece 43, the preset piece 43 can be effectively attached to the bottom wall of the annular groove 11, and the metal buckling structure 4 serving as a metal thin wall is beneficial to deformation according to a preset buckling path.
As shown in fig. 2 to 4, the metal buckling structure 4 of this embodiment includes elastic pieces 41 arranged in an up-down symmetrical manner, a rib 42 is disposed between the upper and lower elastic pieces 41, and the upper and lower elastic pieces 41 are respectively bent outward with the rib 42 as a boundary; after the metal buckling structure 4 is elastically deformed in the axial direction, the upper and lower elastic pieces 41 continue to be bent and folded outward with the rib 42 as a boundary, the bent and folded part is elastically abutted against the side wall of the annular groove 11, and the upper end of the elastic piece 41 above the upper part is elastically abutted against the bottom wall of the annular groove 11. The arrangement of the convex ribs enables the two elastic pieces to be bent and deformed more easily in the set direction.
As shown in fig. 2-4, the upper end of the outer cylinder 3 of the present embodiment extends inward to form a circle of inner edge 31, and the inner edge 31 is screwed on the outer sidewall of the upper end of the inner cylinder 2; after the metal buckling structure 4 is elastically deformed in the axial direction, the lower end of the metal buckling structure is elastically abutted against the upper end face of the inner edge 31. The setting of interior edge is favorable to providing the bottom sprag for metal buckling structure, has also further increased the area of contact of metal buckling structure with the urceolus, promotes sealed effect.
As shown in fig. 2 to 4, a plurality of concave rings 21 are formed on the sidewall of the inner cylinder 2 in this embodiment, and the concave rings 21 are arranged in the circumferential direction of the inner cylinder 2; the inner cylinder 2 and the outer cylinder 3 are arranged at intervals, and foaming materials are arranged in the interval 22; the side wall of the outer cylinder 3 is provided with a mounting hole 36, and a pin 5 for puncturing the foaming material to expand the foaming material is arranged in the mounting hole 36; wherein, the foaming material can extrude the concave ring 21 to continuously recess in the inner cylinder 2 after being expanded. The thickness of the concave ring 21 can be set to be smaller than the thickness of other positions of the inner cylinder 2, so that the concave ring can continuously deform after being pressed. After the soil in the inner cylinder 2 is filled, a astronaut screws the pin 5 inwards, the pin 5 punctures the package of the foaming material, the foaming material expands rapidly, the foaming material expands to fill the gap between the inner cylinder 2 and the outer cylinder 3, so that the pressure between the inner cylinder 2 and the outer cylinder 3 is increased, the concave ring 21 on the inner cylinder 2 further bends inwards, the soil in the inner cylinder 2 is pressed, the soil sequence is ensured, and the scientist can analyze the sample; the foaming material also has the function of shock absorption. The structure of pin cooperation mounting hole, only need screw up the pin when making the sample encapsulation, utilize the special physical properties of expanded material, need not carry out other afterburning operations or increase other mechanical structure, convenient operation is applicable to the loose physical properties of soil and the requirement of assurance order.
As shown in fig. 1, a plurality of sections of external threads 32 circumferentially arranged at intervals are arranged at the upper end of the outer side wall of the outer cylinder 3 in the embodiment, a plurality of sections of internal threads circumferentially arranged at intervals are arranged on the inner side wall of the end cover 1, and the end cover 1 and the outer cylinder 3 are in threaded connection through the internal threads and the external threads 32; the internal and external threads 32 are of a double thread configuration, respectively. The end cover and the outer barrel are connected through threads, four sections of double-thread internal threads can be arranged at the end cover, four sections of double-thread external threads can be arranged at the upper end of the outer barrel, threads of the end cover are not mutually meshed when the end cover is not screwed up with the outer barrel, the internal threads of the end cover are clamped into the external threads of the outer barrel when the end cover is screwed up, and the double-thread combination enables the reliability of the threaded connection to be greatly increased, so that the reliability of multi-stage sealing is guaranteed.
As shown in fig. 2 to 4, the outer cylinder 3 of the present embodiment includes an outer cylinder body 33 and a spring base 34, the spring base 34 is installed at the bottom of the outer cylinder body 33, and the spring base 34 is elastically connected to the bottom of the inner cylinder 2 through a spring 35. The spring base is in threaded connection with the outer cylinder, and after the end covers are buckled, the spring can pressurize the bottom of the inner cylinder, so that the order keeping effect is achieved.
When the astronaut adopts the axial buckling metal sealing deep space sampling and packaging device of the embodiment to sample asteroid soil (such as lunar soil sampling), soil is firstly put into the inner barrel, the end cover is screwed down, and along with the end cover being screwed down, the double-spiral structures are mutually meshed, so that the pressure between the outer barrel and the end cover is increased, the pressure between the end cover and the outer barrel causes buckling deformation of the metal buckling structure on the inner barrel, the metal thin wall of the metal buckling structure enters the annular groove of the end cover due to buckling deformation and is tightly attached to the groove wall of the annular groove, the contact force between the metal buckling structure and the end cover is increased, and the sealing function is realized. As shown in fig. 4 in particular, when the end cap in fig. 4a is not screwed, the preset piece of the metal buckling structure is located in the annular groove; when the end cap is gradually screwed down in fig. 4b and 4c, the elastic sheet of the metal buckling structure is gradually bent and deformed around the convex rib and abuts against the side wall of the annular groove; when the end cap is completely screwed in fig. 4d, the elastic sheets of the metal buckling structure respectively abut against the bottom wall and the side wall of the annular groove and the inner edge of the outer barrel. The metal thin wall of the metal buckling structure is limited in the end cover due to the buckling performance of the metal thin wall, and the metal thin wall is in close contact with the end cover. The upper ends of the inner and outer cylinders are in threaded connection, and a Teflon coating is arranged between the end cover and the inner and outer cylinders, so that close contact sealing can be realized. The spring base is in threaded connection with the outer barrel body, and after the end covers are buckled, the spring can pressurize the bottom of the inner barrel, so that the order keeping effect is achieved. The foaming material exists between the inner cylinder and the outer cylinder, the pin is installed on the side wall, the initial state of the concave ring is shown in figure 2, after soil in the inner cylinder is filled, an astronaut screws the pin inwards, the pin punctures the foaming material package, the foaming material expands rapidly, the space between the inner cylinder and the outer cylinder is filled with the expanded foaming material, so that the pressure between the inner cylinder and the outer cylinder is increased, the side wall of the inner cylinder has a lateral buckling structure, after the foaming material expands or lubricating oil is added, the concave ring on the side wall buckles inwards (the concave ring buckling state is shown in figure 3), the asteroid soil sample is compacted to ensure the soil sequence, and the sample analysis by a scientist is facilitated. As the asteroid has small mass and is not enough to form an atmosphere layer around the asteroid, soil sampling is carried out in an extremely high vacuum environment, and the soil can be compacted only in the radial direction and the axial direction, so that the order preservation function can be realized.
Example 2
As shown in fig. 5, a leak rate monitoring packaging system of the embodiment comprises a return capsule, and an axially bent metal-sealed deep space sampling packaging device, an image monitoring device, a temperature sensor, a pressure sensor, a gas detection device and a terminal controller which are respectively installed in the return capsule, wherein the image monitoring device, the temperature sensor, the pressure sensor and the gas detection device are respectively used for monitoring soil leakage, temperature, pressure and oxygen content in the return capsule and are fed back to the terminal controller through a data transmission module. Wherein, the gas detection device can be an osmium membrane resistance sensor and the like. The gas detection device is mainly used for detecting whether the atomic oxygen content in the returning capsule exceeds the standard or not, the pressure in the returning capsule is 81.3-104.3 kPa, and the temperature is 19-26 ℃. The sample can be placed in the atmosphere again in the recoverable capsule in the transportation, places the sample in the packaging system who has monitoring function, detects the leak rate through the soil content that detects in the unit volume, if meet the encapsulation and reveal scheduling problem, can in time carry out the sample and encapsulate again, guarantee the purity of limited scientific sample.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (6)
1. The axial buckling metal sealing deep space sampling and packaging device is characterized by comprising an end cover, an inner barrel and an outer barrel, wherein the inner barrel is sleeved in the outer barrel, the bottom of the inner barrel is elastically connected with the bottom of the outer barrel, the end cover is detachably connected to the upper end of the outer barrel, the upper end of the inner barrel is connected with a circle of metal buckling structure, and the metal buckling structure is extruded by the end cover to be elastically deformed in the axial direction and then is respectively abutted against the end surface of the upper end of the outer barrel and the inner end surface of the end cover; a circle of annular groove is formed in the inner end face of the end cover, the upper end of the metal buckling structure is arranged in the annular groove, and the metal buckling structure is elastically abutted to the bottom wall and the side wall of the annular groove after being elastically deformed in the axial direction; a circle of shoulder is formed on the inner side wall of the end cover, the annular groove is located on the inner side of the shoulder, and the side wall of the shoulder is used as the side wall of the annular groove to be in elastic abutment with the metal buckling structure after the axial elastic deformation; when the end cover is connected to the upper end of the outer cylinder, the bottom wall of the shoulder abuts against the upper end face of the outer cylinder;
the metal buckling structure comprises elastic pieces which are symmetrically arranged up and down, a convex rib is arranged between the upper elastic piece and the lower elastic piece, and the upper elastic piece and the lower elastic piece are bent outwards respectively by taking the convex rib as a boundary; after the metal buckling structure is subjected to axial elastic deformation, the upper elastic sheet and the lower elastic sheet continue to be bent and folded outwards by taking the convex rib as a boundary, the bent and folded part is elastically abutted against the side wall of the annular groove, and the upper end of the elastic sheet positioned above the bent and folded part is elastically abutted against the bottom wall of the annular groove;
a plurality of concave rings which are sequentially arranged up and down are formed on the side wall of the inner cylinder, and the concave rings are arranged along the circumferential direction of the inner cylinder; the inner cylinder and the outer cylinder are arranged at intervals, foaming materials or lubricating oil are arranged in the intervals, and soil samples are compacted to ensure the soil sequence; the outer barrel is characterized in that a mounting hole is formed in the side wall of the outer barrel, and a pin is arranged in the mounting hole.
2. The axial buckling metal sealing deep space sampling and packaging device according to claim 1, wherein the cross section of the metal buckling structure is in a shape like a Chinese character '3', a preset part is arranged at the upper end of the metal buckling structure, and the thickness of the metal buckling structure is smaller than that of the preset part.
3. The axially-buckled metal-sealed deep space sampling and packaging device according to claim 1, wherein the upper end of the outer cylinder extends inwards to form a circle of inner edges, and the inner edges are in threaded connection with the outer side wall of the upper end of the inner cylinder; and after the metal buckling structure is subjected to axial elastic deformation, the lower end of the metal buckling structure is elastically abutted against the upper end face of the inner edge.
4. The axially-buckled metal-sealed deep space sampling and packaging device as claimed in claim 1, wherein a plurality of sections of external threads are circumferentially arranged at intervals on the upper end of the outer side wall of the outer cylinder, a plurality of sections of internal threads are circumferentially arranged at intervals on the inner side wall of the end cover, and the end cover and the outer cylinder are in threaded connection through the internal threads and the external threads; the internal thread and the external thread are of double-thread structures respectively.
5. The axially-buckled metal seal deep space sampling and packaging device according to claim 1, wherein the outer barrel comprises an outer barrel body and a spring base, the spring base is mounted at the bottom of the outer barrel body, and the spring base is elastically connected with the bottom of the inner barrel through a spring.
6. A leak rate monitoring packaging system, characterized by comprising a re-entry capsule and an image monitoring device, a temperature sensor, a pressure sensor, a gas detection device, a terminal controller and the axial buckling metal sealing deep space sampling packaging device of any one of claims 1 to 5 respectively installed in the re-entry capsule, wherein the image monitoring device, the temperature sensor, the pressure sensor and the gas detection device are respectively used for monitoring soil leakage, temperature, pressure and oxygen content in the re-entry capsule and are fed back to the terminal controller through a data transmission module.
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