CN112255005A - Radial buckling metal sealing deep space sampling packaging device and leakage rate monitoring packaging system - Google Patents
Radial buckling metal sealing deep space sampling packaging device and leakage rate monitoring packaging system Download PDFInfo
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- CN112255005A CN112255005A CN202011033263.4A CN202011033263A CN112255005A CN 112255005 A CN112255005 A CN 112255005A CN 202011033263 A CN202011033263 A CN 202011033263A CN 112255005 A CN112255005 A CN 112255005A
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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
- G01—MEASURING; TESTING
- 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
- G01—MEASURING; TESTING
- 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 a radially-buckled metal-sealed deep space sampling and packaging device and a leakage rate monitoring and packaging system, wherein the radially-buckled metal-sealed deep space sampling and packaging device comprises an end cover, an inner cylinder and an outer cylinder, the inner cylinder is sleeved in the outer cylinder, the upper end of the inner cylinder is in threaded connection with the upper end of the outer cylinder, the bottom of the inner cylinder is in elastic connection with the bottom of the outer cylinder, the end cover is detachably connected to the upper end of the outer cylinder, a circle of metal buckling structure is arranged at the upper end of the inner cylinder, a circle of annular groove is formed in the inner end surface of the end cover, the metal buckling structure is arranged in the annular groove, and the end cover extrudes the metal buckling structure to enable the metal buckling structure to. The invention adopts a metal buckling structure, can enter a gap of the end cover under the buckling condition to realize the close contact with the end cover, has effective shaping, can occupy the whole annular groove by the volume and realizes the sealing function.
Description
Technical Field
The invention relates to the technical field of lunar sampling lunar soil encapsulation, in particular to a radial buckling metal sealing deep space sampling encapsulation device and a leakage rate monitoring encapsulation system.
Background
The lunar soil sample encapsulation technology is an important component in the field of lunar sampling, a knife edge seal design based on a metal extrusion seal principle is carried out on a lunar soil sample encapsulation device in an Apollodeny month task in the United states, metal extrusion seal encapsulation bottles with various configurations are used in an APOLLO month-exploring task, the sample bottles in the APOLLO task are leaked in the earth returning process, and the analysis shows that the whole device fails due to the fact that lunar dust is attached to a seal surface. The packaging bottle used in luna lunar exploration task in former soviet union is rubber seal, but the effect of the sealing device is not ideal because the rubber seal is greatly influenced by temperature in the space environment. The Lanzhou physical research institute of China adopts indium-silver alloy knife edge sealing and fluororubber multi-stage sealing modes to design the lunar soil sample packaging device, the leakage rate is stable after high and low temperature circulation, and the long-term stable and reliable sealing use requirements of future spacecrafts in the extremely high vacuum environment can be met. With the gradual expansion of the manned lunar landing exploration task in China, higher and higher requirements are put forward for lunar soil sample encapsulation in the aerospace task in future. It is necessary to design a packaging device meeting the requirements of scientific research to serve the scientific research of the moon.
The central components of the APOLLO sealing system are a knife edge machined around the open end of the container, an indium-silver alloy gasket pressed into the container lid, and a press fit mechanism that applies sufficient force to embed the knife edge into the gasket. During operation on the surface of the moon, the sealing system must be capable of overcoming the impact influence of the dust on the moon and playing a role in protection. Prior to use of the sample encapsulation device, it is necessary to eliminate most of the trapped gas from the gasket material and then press the metal extrusion material into a mold to form a gasket having a rectangular cross-section.
To embed the knife edge into the gasket and form a seal, the astronaut must twist the hold down using the handle. The maximum torque that can be generated due to the weight limitations of space suits and the moon is about 32in lbs, and therefore the torque required to encapsulate the device must be less than this value. By fitting the thrust bearing-thrust washer into the press mechanism, the torque generated by the astronaut can be utilized as efficiently as possible. A conical spring washer is also fitted over the thrust washer. When a torque of 18 in-lbs is applied to the mechanical handle of the hold down mechanism, the conical spring washer is fully compressed, maintaining a slight load on the sealing surface using the potential energy stored in the washer to prevent leakage.
The scientific community expects that the encapsulation device will be able to return the lunar sample to the earth intact. The material in the container must be free of any traces of surface contamination, apart from very small traces of surface contamination, and must not contain lead antimony, thorium, radium, uranium, etc., so that the material must be evaluated quantitatively. The package must be able to withstand high temperatures of 163 c and requires that the material be baked in a vacuum environment to release the gases.
The operating capacity of the astronaut under the action of the gravitational force of the moon needs to be considered when designing the packaging device. The packaging unit must be easy to handle, easy to open and fill, quickly sealed, and conveniently installed in the integral return compartment. One major problem is the grip of the container end closure by astronauts when tightening the end closure, due to the twisting motion required to close all of the inner containers. The plasma sprayed alumina coating at the initial stage of part processing is rough enough to prevent the sample bottle from slipping in the hands of an astronaut, but after external polishing, other designs are needed to increase friction force, and finally, an aluminum rod handle is added to assist in twisting operation.
The Apollo moon encapsulation device has the problems of poor human-machine ergonomics and severe operating requirements for astronauts. When encapsulating the sample after the astronaut takes a sample, need carry out many times spiral torsion operation to the sample bottle through the aluminium pole handle, greatly consume astronaut's physical power.
In the knife edge sealing process, the pretightening force needs to be increased so as to ensure that a hard metal knife edge is inserted into a soft metal and the soft metal is shaped, so that an astronaut needs to apply a larger torsional force to complete the operation, and a gasket is specially added for increasing the pressure of an end cover.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides a radial buckling metal sealing deep space sampling packaging device and a leakage rate monitoring packaging system.
The technical scheme for solving the technical problems is as follows: the utility model provides a radial bucking metal seal deep space sampling packaging hardware, includes end cover, inner tube and urceolus, the inner tube cover is established in the urceolus, inner tube upper end and urceolus upper end threaded connection, 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 equipped with round metal buckling structure, be formed with round annular groove on the terminal surface in the end cover, metal buckling structure arranges in the annular groove, the end cover extrusion metal buckling structure makes it be in take place to laminate after radial elastic deformation in the annular groove on the cell wall of annular groove.
The invention has the beneficial effects that: the invention adopts a metal buckling structure, can enter a gap of the end cover under the buckling condition to realize the close contact with the end cover, has effective shaping, can occupy the whole annular groove by the volume and realizes the sealing function.
On the basis of the technical scheme, the invention can be further improved as follows.
Furthermore, the metal buckling structure is elastically deformed to form an m-shaped elastic folding structure.
The beneficial effect of adopting the further scheme is that: the adoption of the m-shaped elastic folding structure facilitates entering the annular groove, and can contact the groove wall of the annular groove to the maximum extent to realize sealing.
Furthermore, the metal buckling structure comprises two elastic sheets which are arranged inside and outside, a convex rib is arranged between the two elastic sheets, and the two elastic sheets are respectively arched upwards by taking the convex rib as a boundary; after the metal buckling structure is subjected to radial elastic deformation, the two elastic sheets continue to arch upwards by taking the convex rib as a boundary, and the top of each elastic sheet is elastically abutted against the bottom wall of the annular groove; the inner side and the outer side of the metal buckling structure are respectively and elastically abutted against the side 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.
Further, the width of the notch of the annular groove is larger than that of the bottom wall, the inner ring side wall of the annular groove is a first inclined surface, and the outer ring side wall comprises a second inclined surface and a vertical surface; the upper end of the second inclined plane is connected with the bottom wall of the annular groove, and the lower end of the second inclined plane is connected with the upper end of the vertical plane.
The beneficial effect of adopting the further scheme is that: the arrangement of the inclined plane enables the metal buckling structure to enter the annular groove more easily.
Further, the upper end of the inner cylinder is connected with a straight cylinder connecting piece matched with the vertical surface, the upper end of the straight cylinder connecting piece is connected with the outer ring end of the metal buckling structure, and the inner ring end of the metal buckling structure is connected with a conical cylinder connecting piece matched with the first inclined surface; the thickness of straight section of thick bamboo connecting piece and awl section of thick bamboo connecting piece all is greater than the thickness of metal buckling structure.
The beneficial effect of adopting above-mentioned further scheme is that metal buckling structure is metal thin-walled structure for straight section of thick bamboo connecting piece and awl section of thick bamboo connecting piece, takes place buckling deformation more easily, and straight section of thick bamboo connecting piece and awl section of thick bamboo connecting piece then with the better laminating of corresponding vertical face and first inclined plane, realize sealedly.
Furthermore, the upper end of the outer cylinder extends inwards to form a circle of inner edge, the outer side wall of the upper end of the inner cylinder is provided with a circle of outer edge, and the inner edge is in threaded connection with the outer edge; and the inner end surface of the end cover is respectively crimped on the inner edge and the outer edge.
The beneficial effect of adopting the further scheme is that: the fit of the inner edge and the outer edge with the end covers also enables the gap between the inner cylinder and the outer cylinder to be effectively sealed.
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 outer cylinder comprises an outer cylinder body and a spring base, the spring base is installed at the bottom of the outer cylinder body, and the spring base is elastically connected with the bottom of the inner cylinder through a spring; and an inner hexagonal mechanical interface is arranged on the outer end face of the end cover.
The spring base is in threaded connection with the outer cylinder, and after the end cover is buckled, the spring can pressurize the bottom of the inner cylinder to play a role in order preservation.
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 structural view of the radially-curved metal-sealed deep space sampling package device of the present invention with the inner barrel not curved;
FIG. 2 is a schematic structural view of the radially flexed metal-sealed deep space sampling package device according to the present invention with the inner barrel flexed;
FIG. 3 is a schematic view illustrating a process of deforming a metal buckling structure according to the present invention;
FIG. 4 is a schematic view of the end cap of 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 socket head mechanical interface;
2. an inner barrel; 21. a concave ring; 22. spacing; 23. an outer edge;
3. an outer cylinder; 31. an inner edge; 32. mounting holes; 33. an outer cylinder body; 34. a spring mount; 35. a spring;
4. a metal buckling structure; 41. an elastic sheet; 42. a rib is protruded; 43. a straight barrel connector; 44. a cone connecting piece.
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.
As shown in fig. 1-5, the radial 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 upper end of the inner tube 2 is in threaded connection with the upper end of 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 provided with a circle of metal buckling structure 4, a circle of annular groove 11 is formed on the inner end face of the end cover 1, the metal buckling structure 4 is arranged in the annular groove 11, the end cover 1 extrudes the metal buckling structure 4 makes it fit on the groove wall of the annular groove 11 after being subjected to radial elastic deformation in the annular groove 11. 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.
The embodiment adopts a metal buckling structure, can enter an end cover gap under the buckling condition, realizes the close contact with an end cover, is effectively shaped, and has the volume capable of occupying the whole annular groove to realize the sealing effect.
As shown in fig. 1 to fig. 3, the metal buckling structure 4 of the present embodiment is elastically deformed to form an m-shaped elastic folding structure. The adoption of the m-shaped elastic folding structure facilitates entering the annular groove, and can contact the groove wall of the annular groove to the maximum extent to realize sealing.
As shown in fig. 1 to fig. 3, a specific solution of this embodiment is that the metal buckling structure 4 includes two elastic pieces 41 arranged inside and outside, a rib 42 is disposed between the two elastic pieces 41, and the two elastic pieces 41 are respectively arched upward with the rib 42 as a boundary; after the metal buckling structure 4 is elastically deformed in the radial direction, the two elastic sheets 41 continue to arch upwards with the convex rib 42 as a boundary, and the top of each elastic sheet is elastically abutted against the bottom wall of the annular groove 11; the inner side and the outer side of the metal buckling structure 4 are respectively and elastically abutted against the side 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. 1-3, in a preferred embodiment of the present invention, the width of the notch of the annular groove 11 is greater than the width of the bottom wall, the inner annular side wall of the annular groove 11 is a first inclined surface, and the outer annular side wall includes a second inclined surface and a vertical surface; the upper end of the second inclined plane is connected with the bottom wall of the annular groove 11, and the lower end of the second inclined plane is connected with the upper end of the vertical plane. The arrangement of the inclined plane enables the metal buckling structure to enter the annular groove more easily.
As shown in fig. 1 to fig. 3, a preferable scheme of this embodiment is that a straight tube connecting member 43 adapted to the vertical surface is connected to the upper end of the inner tube 2, the upper end of the straight tube connecting member 43 is connected to the outer ring end of the metal buckling structure 4, and the inner ring end of the metal buckling structure 4 is connected to a conical tube connecting member 44 adapted to the first inclined surface; the thickness of straight section of thick bamboo connecting piece and awl section of thick bamboo connecting piece all is greater than the thickness of metal buckling structure. The metal buckling structure is a metal thin-wall structure relative to the straight cylinder connecting piece and the conical cylinder connecting piece, buckling deformation can occur more easily, and the straight cylinder connecting piece and the conical cylinder connecting piece are attached to the corresponding vertical surface and the first inclined surface better, so that sealing is realized.
As shown in fig. 1-3, the upper end of the outer cylinder 3 of the present embodiment extends inward to form a circle of inner edge 31, the outer sidewall of the upper end of the inner cylinder 2 is provided with a circle of outer edge 23, and the inner edge 31 is screwed on the outer edge 23; the inner end surface of the end cover 1 is respectively pressed on the inner edge 31 and the outer edge 23. The fit of the inner edge and the outer edge with the end covers also enables the gap between the inner cylinder and the outer cylinder to be effectively sealed.
As shown in fig. 1 to 3, a plurality of concave rings 21 arranged sequentially up and down are formed on the side wall of the inner cylinder 2, and the concave rings 21 are arranged along the circumferential direction of the inner cylinder 2; the inner cylinder 2 and the outer cylinder 3 are arranged at intervals, and foaming materials or lubricating oil are arranged in the interval 22; the lateral wall of the outer barrel 3 is provided with a mounting hole 32, and a pin is arranged in the mounting hole 32. The thickness of the inner cylinder at the position of the concave ring can be set to be smaller than the thickness of other positions. When the foaming material is arranged in the interval 22, the foaming material can be punctured by a pin to be expanded, and the foaming material can extrude the concave ring 21 to continuously recess into the inner cylinder 2 after being expanded. When the lubricating oil is provided in the space 22, the mounting hole 32 is opened, and the lubricating oil is filled into the space 22 to apply pressure to the inner tube 2, thereby pressing the concave ring 21 to be continuously recessed into the inner tube 2. After the soil in the inner cylinder 2 is filled, a astronaut screws the pin inwards, the pin 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 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.
One alternative of this embodiment is that the upper end of the outer side wall of the outer cylinder 3 is provided with a plurality of sections of external threads which are circumferentially arranged at intervals, the inner side wall of the end cover 1 is provided with a plurality of sections of internal threads which are circumferentially arranged at intervals, and the end cover 1 and the outer cylinder 3 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. End cover 1 and urceolus 3 pass through threaded connection, and end cover 1 department can set up four sections double thread internal threads for can setting up, and urceolus 3 upper end can set up four sections double thread external screw threads, and end cover 1 screw thread not interlock when not screwing up with urceolus 3, and on the external screw thread of urceolus 3 was advanced to the internal thread card of end cover 1 when screwing up, the double thread combination made threaded connection reliability greatly increased.
As shown in fig. 1 and 2, in the present embodiment, the outer cylinder 3 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 with the bottom of the inner cylinder 2 through a spring 35; as shown in fig. 4, the outer end face of the end cap 1 is provided with an inner hexagonal mechanical interface 12. 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 an astronaut uses the radial buckling metal sealing deep space sampling and packaging device of the embodiment to perform asteroid (such as moon) soil sampling and packaging, firstly, soil is put into the inner cylinder, then, a mechanical interface of the motor is butted with an inner hexagonal mechanical interface on the end cover, the motor is used for applying a torsional moment to the inner hexagonal mechanical interface on the end cover, and the astronaut does not need to perform other operations. Along with the screwing of the end cover, the metal buckling structure on the upper section part of the inner cylinder is pressed to generate buckling deformation, the metal thin wall of the metal buckling structure enters the annular groove of the end cover due to the 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. Specifically, as shown in fig. 3, when the end cover in fig. 3a is not screwed, the straight tube connecting piece of the metal buckling structure is attached to the vertical surface of the annular groove, the conical tube connecting piece is attached to the first inclined surface of the annular groove, and the elastic piece of the metal buckling structure is located at the notch of the annular groove; when the end caps are gradually screwed down in fig. 3b and 3c, the conical cylinder connecting piece and the straight cylinder connecting piece respectively move towards the annular groove along the first inclined plane and the vertical plane, and due to the closing-in action of the first inclined plane and the second inclined plane, the elastic sheet of the metal buckling structure gradually arches upwards with the convex rib as a boundary; when the end cover is completely screwed down in fig. 3d, the upper end arch structure of the elastic sheet of the metal buckling structure is respectively abutted against the bottom wall of the annular groove, the straight cylinder connecting piece is attached to the vertical surface, the conical cylinder connecting piece is attached to the first inclined surface, and the elastic sheet is respectively attached to the corresponding first inclined surface and the second inclined surface. The metal buckling structure completely enters the end cover, the shape of the buckling part is tightly attached to the end cover, the contact force between the metal thin layer and the end cover is increased, and the metal buckling structure can play a role in sealing. 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.
Liquid (such as lubricating oil) can be filled between the inner cylinder and the outer cylinder, the pin is installed on the side wall (the concave ring is in an initial unflexed state as shown in fig. 1), after soil in the inner cylinder is filled, a spaceman fills the liquid into the installation hole, so that the pressure between the inner cylinder and the outer cylinder is increased, the soil in the inner cylinder is pressed, the soil sequence is ensured, and the scientist can analyze samples. The liquid between the inner and outer cylinders simultaneously plays the roles of shock absorption and pressurization. The foaming material can also be arranged between the inner cylinder and the outer cylinder, after the soil in the inner cylinder is filled, a 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 buckles inwards as shown in figure 2), the asteroid soil sample is compacted to ensure the soil sequence, and the sample analysis by a scientist is facilitated. As the asteroid soil sampling is carried out in the extremely high vacuum environment, the problem of gas exhaust in the packaging tank does not need to be considered, and the soil is compacted only in the radial direction and the axial direction, so that the order preserving function can be realized.
Example 2
As shown in fig. 5, a leak rate monitoring and packaging system of the embodiment includes a re-entry capsule, and an axially curved metal-sealed deep space sampling and 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 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. 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 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.
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 (10)
1. The utility model provides a radial bucking metal seal deep space sampling packaging hardware, a serial communication port, including end cover, inner tube and urceolus, the inner tube cover is established in the urceolus, inner tube upper end and urceolus upper end threaded connection, elastic connection between inner tube bottom and the urceolus bottom, the end cover can be dismantled and connect the urceolus upper end, the inner tube upper end is equipped with round metal buckling structure, be formed with round annular groove on the terminal surface in the end cover, metal buckling structure arranges in the annular groove, the end cover extrusion metal buckling structure makes it be in take place to laminate behind the radial elastic deformation in the annular groove on the cell wall of annular groove.
2. The radially-buckled metal-sealed deep space sampling and packaging device of claim 1, wherein the metal buckling structure is elastically deformed to form an m-shaped elastic folding structure.
3. The radially-buckled metal sealing deep space sampling and packaging device according to claim 1, wherein the metal buckling structure comprises two elastic sheets arranged inside and outside, a rib is arranged between the two elastic sheets, and the two elastic sheets are respectively arched upwards by taking the rib as a boundary; after the metal buckling structure is subjected to radial elastic deformation, the two elastic sheets continue to arch upwards by taking the convex rib as a boundary, and the top of each elastic sheet is elastically abutted against the bottom wall of the annular groove; the inner side and the outer side of the metal buckling structure are respectively and elastically abutted against the side wall of the annular groove.
4. The radially-flexed metal-sealed deep space sampling package device of claim 1, wherein the annular groove has a notch width greater than a bottom wall width, the annular groove has an inner annular sidewall with a first inclined surface, and an outer annular sidewall comprising a second inclined surface and a vertical surface; the upper end of the second inclined plane is connected with the bottom wall of the annular groove, and the lower end of the second inclined plane is connected with the upper end of the vertical plane.
5. The radially-buckling metal-sealed deep space sampling and packaging device according to claim 4, wherein a straight-tube connecting piece matched with the vertical surface is connected to the upper end of the inner tube, the upper end of the straight-tube connecting piece is connected with the outer ring end of the metal buckling structure, and the inner ring end of the metal buckling structure is connected with a conical-tube connecting piece matched with the first inclined surface; the thickness of straight section of thick bamboo connecting piece and awl section of thick bamboo connecting piece all is greater than the thickness of metal buckling structure.
6. The radially-buckling metal-sealed deep space sampling and packaging device as claimed in claim 1, wherein a circle of inner edge is formed at the upper end of the outer cylinder in an inward extending manner, a circle of outer edge is formed on the outer side wall of the upper end of the inner cylinder, and the inner edge is connected to the outer edge in a threaded manner; and the inner end surface of the end cover is respectively crimped on the inner edge and the outer edge.
7. The radially-bent metal-sealed deep space sampling and packaging device according to claim 1, wherein a plurality of concave rings are sequentially arranged up and down and 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.
8. The radially-buckled metal-sealed deep space sampling and packaging device as claimed in claim 5, 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.
9. The radially-buckling metal-sealed deep space sampling and packaging device as recited in claim 1, wherein the outer cylinder comprises an outer cylinder body and a spring mount, the spring mount is mounted at the bottom of the outer cylinder body, and the spring mount is elastically connected with the bottom of the inner cylinder through a spring; and an inner hexagonal mechanical interface is arranged on the outer end face of the end cover.
10. The utility model provides a leak rate monitoring packaging system, its characterized in that includes the reentry module and installs respectively radial bucking 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 in the reentry module respectively and reveal the condition, temperature, pressure and oxygen content to feedback to terminal controller through data transmission module.
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| CN114323478A (en) * | 2021-12-06 | 2022-04-12 | 兰州空间技术物理研究所 | Method for detecting high-vacuum sealing performance of indium-silver alloy |
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