CN213263467U

CN213263467U - In-situ sample box of vacuum analysis instrument

Info

Publication number: CN213263467U
Application number: CN202021309329.3U
Authority: CN
Inventors: 蓝伟
Original assignee: Shanghai Yunbi Technology Co ltd
Current assignee: Shanghai Yunbi Technology Co ltd
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2021-05-25
Anticipated expiration: 2030-07-06

Abstract

The utility model discloses an in-situ sample box of a vacuum analysis instrument, relating to the technical field of sample boxes; this vacuum analysis instrument's normal position sample box, including the sample that awaits measuring, the sample that awaits measuring is fixed in interior cavity through fixed subassembly, and interior cavity is through compressible type variant swing joint in outer box body, and outer box body bottom is fixed with lid behind the outer box body, and interior cavity both ends are passed through seal assembly and are connected, still be equipped with one-way exhaust apparatus in the interior cavity, one-way exhaust apparatus both ends respectively with outer box body inside and external intercommunication, still be equipped with temperature control assembly in the outer box body, still be equipped with the pressure test piece between sample that awaits measuring and the sample fixing base for whole has very good leakproofness, can realize automatic movement's function according to pressure simultaneously, and has very good functionality in the use, has very good practicality.

Description

In-situ sample box of vacuum analysis instrument

Technical Field

The utility model relates to a sample box technical field specifically is a vacuum analysis instrument's normal position sample box.

Background

An X-ray photoelectron spectrometer, an X-fluorescence spectrometer, an electron probe microscope, a scanning transmission electron microscope, a scanning tunneling microscope and other instruments are equipment for observing the surface appearance of an object or a material. When some special samples are put into the cavity of the instrument, the special samples are easily affected by air, so that the apparent physical properties or the material chemical properties of the samples are changed, and the analysis results are affected.

Some researchers package the sample in a specific sample box in a glove box protected by inert gas, and after the sample is transferred to the cavity of the instrument, the sample box is opened by using a motor or an electromagnet installed in the box. Thus, although the pollution of air to the sample is avoided, the motor or the electromagnet is provided with magnetic substances, which has great influence on the analysis result of the sample; in addition, some special samples need to be tested under specific temperature and pressure, which puts higher demands on the sample holding box.

Disclosure of Invention

An object of the utility model is to provide a vacuum analysis instrument's normal position sample box solves above-mentioned problem.

In order to achieve the above object, the utility model provides a following technical scheme:

an in-situ sample box of a vacuum analysis instrument comprises a sample to be detected, wherein the sample to be detected is fixed in an inner cavity through a fixing component, the inner cavity is movably connected in an outer box body through a compressible transformer, an outer box body rear cover is fixed at the bottom of the outer box body, and two ends of the inner cavity are connected through a sealing component;

the sealing assembly comprises a sample cabin sealing ring and an inner cavity sealing ring which are respectively fixed at two ends of the inner cavity, and the fixing assembly comprises a sample fixing seat fixed on the inner cavity sealing ring and a pressure applying rod in threaded connection with the sample cabin sealing ring;

still be equipped with one-way exhaust apparatus in the interior cavity, one-way exhaust apparatus both ends communicate with outer box internal portion and external respectively, still are equipped with temperature control assembly in the outer box, still are equipped with the pressure test piece between sample to be measured and the sample fixing base.

In one alternative: the temperature control assembly comprises a low-temperature module and a high-temperature module, and further comprises a temperature probe arranged on the sample fixing seat.

In one alternative: the temperature probe is of a thermal resistance type or a thermocouple type.

In one alternative: the outer shell and the inner cavity are made of non-ferromagnetic materials.

In one alternative: two ends of the compressible variant are respectively connected with the inner cavity sealing ring and the outer box rear cover.

In one alternative: the compressible type variant is a rubber, austenitic stainless steel spring or non-ferrous metal spring.

In one alternative: the material of sample cabin sealing washer and interior cavity sealing washer is silica gel, reinforcing polypropylene or polytetrafluoroethylene.

In one alternative: the pressure test piece is a piezoresistive type, a capacitance type or a strain gauge.

In one alternative: when the sample to be detected is a battery product, one end of the pressure applying rod is connected with one electrode of the charging and discharging equipment, and the leading-out end of the sample fixing seat is connected with the other electrode of the charging and discharging equipment.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. in a glove box protected by inert gas, a sample is assembled in a specific sample box, after a cavity in the sample box is closed, the sample box is placed in a cavity of an analysis instrument, and then the inner cavity is opened through a compressible variant, so that the sample is protected from air pollution before analysis, and a very good sealing effect is achieved; after the analysis instrument completes the test, inert gas can be injected into the analysis instrument, the air pressure in the cavity of the analysis instrument is raised, the inner cavity automatically retracts under the external pressure, and the sample is protected again;

2. by using the sample box, the compressible variant and the like made of non-ferromagnetic materials, the analysis influence of the materials on an analysis instrument is avoided, so that the accuracy of the test is facilitated;

3. when the inner cavity is closed through the one-way exhaust device, gas in the sample box is exhausted, the gas outside the box is isolated from entering, the inner cavity is sealed under the action of external air pressure, after the sample box enters the cavity of the analyzer, the gas in the analyzer is extracted, the compressible variant pushes out the inner cavity, and the whole process can be automatically finished;

4. the temperature control assembly can be used for heating and cooling the sample box, so that the sample can be analyzed in a certain specific temperature environment; the pressure applying rod can apply certain pressure to the analysis sample, so that the sample can be analyzed under a certain pressure condition; the temperature and the pressure value of the sample can be monitored in real time through the pressure test piece and the temperature probe on the sample fixing seat; meanwhile, the pressure applying rod is made of a non-ferromagnetic material conductive material, and when the sample to be tested is a battery sample, the pressure applying rod can be matched with the other conductive end on the sample fixing seat to complete the charging and discharging operation of the battery to be tested.

Drawings

Fig. 1 is an exploded view of the in-situ sample box of the present invention.

Fig. 2 is a state diagram of the in-situ sample box according to the present invention.

Fig. 3 is a state diagram of the in-situ sample box according to the present invention.

Notations for reference numerals: 101-outer box, 102-inner box, 103-outer box rear cover, 200-pressure applying rod, 301-low temperature module, 302-high temperature module, 400-compressible variant, 501-sample cabin sealing ring, 502-inner box sealing ring, 600-inner box sealing ring, 700-pressure test piece, 800-sample fixing seat, 900-sample to be tested.

Detailed Description

The present invention will be described in detail with reference to the following embodiments, wherein like or similar elements are designated by like reference numerals throughout the drawings or description, and wherein the shape, thickness or height of the various elements may be expanded or reduced in practical applications. The embodiments of the present invention are provided only for illustration, and not for limiting the scope of the present invention. Any obvious and obvious modifications or alterations to the present invention can be made without departing from the spirit and scope of the present invention.

Example 1

Please refer to fig. 1-3, in an embodiment of the present invention, an in-situ sample box of a vacuum analyzer, including a sample 900 to be measured, the sample 900 to be measured is fixed in an inner cavity 102 through a fixing component, the inner cavity 102 is movably connected in the outer cavity 101 through a compressible variant 400, and the bottom of the outer cavity 101 is fixed with an outer cavity rear cover 103, by fixing the sample 900 to be measured in the inner cavity 102, the sample 900 to be measured can be fixed, and can slide in the outer cavity 101 through the inner cavity 102, so as to play a role in sealing and protecting the sample 900 to be measured, and simultaneously facilitate subsequent analysis of the sample 900 to be measured, the present invention has a very good practicability, and simultaneously, the inner cavity 102 is driven to move in the outer cavity 101 under the condition of pressure change through the compressible variant 400, so as to play an effect of automatic movement; two ends of the inner cavity 102 are connected through a sealing assembly, so that internal and external gases can be isolated, the sample 900 to be detected is protected, and the analysis accuracy is improved; the sealing assembly comprises a sample chamber sealing ring 501 and an inner cavity sealing ring 502 which are respectively fixed at two ends of the inner cavity 102, wherein the sample chamber sealing ring 501 blocks the pollution of external gas to a sample 900 to be detected in the inner cavity 102, and the inner cavity sealing ring 502 blocks the permeation of gas in the outer box 101, so that the airtight effect is ensured; the fixing component comprises a sample fixing seat 800 fixed on the inner cavity sealing ring 502 and a pressure applying rod 200 in threaded connection with the sample cabin sealing ring 501, a sample 900 to be detected is placed on the sample fixing seat 800 in the using process, then the pressure applying rod 200 is rotated, the pressure applying rod 200 is in threaded connection with the sample cabin sealing ring 501, the pressure applying rod 200 can move in the inner cavity 102, and the sample 900 to be detected is fixed; the inner cavity 102 is also internally provided with a one-way exhaust device 600, two ends of the one-way exhaust device 600 are respectively communicated with the inside and the outside of the outer box body 101, so that the gas in the outer box body 101 can be conveniently extracted out through the one-way exhaust device 600 or inert gas can be conveniently injected into the outer box body 101, and the effect that the inner cavity 102 automatically moves in the outer box body 101 is realized.

Further, a pressure test piece 700 is further arranged between the sample 900 to be tested and the sample fixing seat 800, a certain pressure is applied to the sample 900 to be tested through the pressure applying rod 200, and the pressure applied to the sample 900 to be tested is detected through the pressure test piece 700.

Further, still be equipped with temperature control assembly in outer box body 101, temperature control assembly includes low temperature module 301 and high temperature module 302, can cool down or heat up outer box body 101 inside through temperature control assembly, and temperature control assembly still can survey inside temperature through temperature probe including setting up on sample fixing base 800.

Further, the outer casing 101 and the inner casing 102 are made of non-ferromagnetic material, such as non-ferrous metal, austenitic stainless steel, organic high polymer material, etc., preferably non-ferrous metal material, such as copper, aluminum, etc.

Furthermore, both ends of the compressible variant 400 are respectively connected with the inner cavity sealing ring 502 and the outer box rear cover 103, when the inner cavity 102 can compress the compressible variant 400 in the moving process, the inner cavity 102 can be pushed out through the compressible variant 400, and the practicability is very good; the compressible type 400 is a rubber, an austenitic stainless steel spring, or a nonferrous metal spring, and preferably a colored metal spring or an austenitic stainless steel spring.

Further, the material of the sample chamber sealing ring 501 and the inner cavity sealing ring 502 is silica gel, reinforced polypropylene or polytetrafluoroethylene, preferably polytetrafluoroethylene.

Further, the pressure test piece 700 is a piezoresistive type, a capacitive type, a strain gauge, or the like, and a thin film piezoresistive type is preferable.

Further, the temperature probe is of a thermistor type or a thermocouple type, preferably a thermocouple type.

Example 2

When the sample 900 to be tested is a battery product, one end of the pressure applying rod 200 is connected with one electrode of the charging and discharging device, and the leading-out end of the sample fixing seat 800 is connected with the other electrode of the charging and discharging device, so that the charging and discharging operation of the battery product is completed.

The utility model discloses a theory of operation is: firstly, in a glove box protected by inert gas, a sample 900 to be measured is placed in a sample fixing seat 800 on an inner cavity 102, then the inner cavity 102 is pushed into the bottom of an outer box 101, the inner cavity 102 exhausts the gas in the outer box 101 through a one-way exhaust device 600, and the inner cavity 102 is fixed at the bottom of the outer box 101 under the action of the external air pressure; the assembled and sealed sample box is placed in a cavity of an analysis instrument, air in the cavity is pumped out, and due to the fact that the pressure in the cavity is reduced, the inner cavity 102 is pushed away from the bottom of the outer shell 101 under the action of the compressible transformer 400, and at the moment, a sample 900 to be detected in the inner cavity 102 can be correspondingly analyzed; when the sample 900 to be tested needs to be analyzed for specific temperature and pressure, the temperature can be reduced or increased through the low-temperature module 301 and the high-temperature module 302, the pressure is applied to the sample 900 to be tested through the pressure applying rod 200, then the pressure is detected through the pressure testing sheet 700, and the temperature is measured through the temperature probe.

The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. An in-situ sample box of a vacuum analysis instrument comprises a sample (900) to be detected, and is characterized in that the sample (900) to be detected is fixed in an inner cavity (102) through a fixing component, the inner cavity (102) is movably connected in an outer box (101) through a compressible variant (400), an outer box rear cover (103) is fixed at the bottom of the outer box (101), and two ends of the inner cavity (102) are connected through a sealing component;

the sealing assembly comprises a sample cabin sealing ring (501) and an inner cavity sealing ring (502) which are respectively fixed at two ends of the inner cavity (102), and the fixing assembly comprises a sample fixing seat (800) fixed on the inner cavity sealing ring (502) and a pressure applying rod (200) in threaded connection with the sample cabin sealing ring (501);

still be equipped with one-way exhaust apparatus (600) in interior cavity (102), one-way exhaust apparatus (600) both ends communicate with outer box (101) inside and external world respectively, still are equipped with temperature control assembly in outer box (101), still are equipped with pressure test piece (700) between sample (900) that awaits measuring and sample fixing base (800).

2. The in-situ sample cartridge of vacuum analysis instrument of claim 1, wherein the temperature control assembly comprises a low temperature module (301) and a high temperature module (302), the temperature control assembly further comprising a temperature probe disposed on the sample holder (800).

3. The in situ sample cartridge of claim 2, wherein the temperature probe is of a thermal resistance type or a thermocouple type.

4. The in situ sample cartridge of vacuum analysis instrument according to claim 1, wherein the outer housing (101) and inner housing (102) are non-ferromagnetic materials.

5. The in-situ sample cartridge of vacuum analysis instrument according to claim 1, wherein the compressible variant (400) is connected at both ends with the inner cavity sealing ring (502) and the outer shell rear cover (103), respectively.

6. The in-situ sample holder of vacuum analysis instrument according to claim 5, characterized in that the compressible type variant (400) is a spring made of rubber, austenitic stainless steel or nonferrous metals.

7. The in-situ sample cartridge of vacuum analysis instrument according to claim 1, wherein the material of the sample compartment sealing ring (501) and the inner cavity sealing ring (502) is silica gel, reinforced polypropylene or polytetrafluoroethylene.

8. The in-situ sample cell of the vacuum analysis instrument of claim 1, wherein the pressure test patch (700) is a piezoresistive, capacitive or strain gauge.

9. The in-situ sample box of vacuum analysis instrument according to claim 1, wherein when the sample (900) to be tested is a battery product, one end of the pressure applying rod (200) is connected to one electrode of the charging and discharging device, and the leading end of the sample holder (800) is connected to the other electrode of the charging and discharging device.