CN221069361U - Modularized high-vacuum sample rod storage device - Google Patents
Modularized high-vacuum sample rod storage device Download PDFInfo
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- CN221069361U CN221069361U CN202322915133.9U CN202322915133U CN221069361U CN 221069361 U CN221069361 U CN 221069361U CN 202322915133 U CN202322915133 U CN 202322915133U CN 221069361 U CN221069361 U CN 221069361U
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- 238000003780 insertion Methods 0.000 description 3
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- 239000000126 substance Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
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- 238000010894 electron beam technology Methods 0.000 description 1
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Abstract
The utility model discloses a modularized high-vacuum sample rod storage device, which comprises a host, an operation interface, a sample rod storage unit, a valve assembly and a vacuum system, wherein the host is connected with the operation interface; the operation interface is arranged on the front surface of the host computer and used for controlling the valve assembly and the vacuum system; the sample rod storage unit is positioned above the host machine and is used for storing the sample rods; the valve component is connected with the sample rod storage unit and used for controlling the connection between different components and between the components and the atmosphere; the vacuum system is positioned in the host machine and used for controlling the overall vacuum degree of the device. The storage device provided by the utility model has the advantages that the connection between the vacuum system and the sample rod storage unit is realized by using the self-closing quick-release plug, the type or the number of the sample rod storage unit can be replaced at any time according to the development and the demand change of a laboratory, and the satisfaction of personalized demands and the adjustable storage capacity are realized; by adding the manual valve, the device function is expanded, and besides the basic sample rod storage function, the function of transferring samples in vacuum is realized.
Description
Technical Field
The utility model relates to the technical field of electron optics, in particular to a modularized high-vacuum sample rod storage device comprising a high-vacuum sample rod, an electron microscope accessory, electron microscope consumable materials and the like.
Background
The transmission electron microscope is high-end scientific research equipment for researching the microscopic physical structure and chemical property of a substance, is widely applied to microstructure research of substance subjects such as catalysis, semiconductors, energy sources, biomedicine and the like, and has extremely high resolution, so that researchers can be helped to directly 'see' the atomic scale information of the material structure; the introduction of analysis equipment such as an energy dispersive X-ray spectrometer (EDX), an electron back scattering diffraction spectrometer (EBSD) and an Electron Energy Loss Spectrometer (EELS) strengthens the characterization capability of an electron microscope on material components. The in-situ sample rod greatly expands the analysis and test functions of a conventional electron microscope due to the rapid development of micro-electro-mechanical systems (MEMS) in recent decades. The atomic-level structure and the component dynamic characterization of the material under the external field environment (such as heat, electricity, force, light and the like) are realized in the electron microscope through the in-situ sample rod, so that great breakthrough is brought to the design of new high-performance materials for revealing the correlation between the dynamic evolution and the performance of the atomic structure of the material and understanding the mechanism of the performance of the material.
The transmission electron microscope has extremely high internal vacuum degree and cleanliness standard, and particularly under the in-situ experimental condition, the complex experimental environment has higher requirements on the vacuum degree and the cleanliness. The vacuum degree is not high enough, gas molecules can randomly scatter electron beams, and the resolution ratio of an electron microscope is seriously reduced; the presence of hydrocarbon contaminants on the pole pieces will cause asymmetry of the magnetic field, resulting in a decrease in resolution; organic contaminants on the sample can form a deposit layer that blocks the important signal. Sample rods and samples are the most dominant way of introducing contamination into electron microscopes, and therefore, sample rods need to be stored in a high vacuum environment to avoid contamination by adsorption of various molecules in air.
Meanwhile, along with the continuous development of a laboratory and the continuous innovation of technology, the number and the types of sample rods often have great changes, and in order to meet complex and changeable storage requirements, a sample rod storage device capable of meeting the personalized requirements of the laboratory and continuously adjusting the functions of the sample rod storage device along with the development of the laboratory is provided.
Disclosure of utility model
The utility model aims to provide a modularized high-vacuum sample rod storage device which has the capability of providing independent high-vacuum storage environments for 5 electron microscope sample rods, so that the sample rods are ensured to be kept in dry and clean environments, the pollution of the sample rods is reduced, and the service life is prolonged. More importantly, the device also has the function of conveniently adjusting the storage capacity so as to meet different requirements of laboratories on storage types, storage quantity and the like in different periods.
In order to achieve the functions, the utility model provides a modularized high-vacuum sample rod storage device, which comprises a host machine, an operation interface, a sample rod storage unit, a valve assembly and a vacuum system, wherein the operation interface is arranged on the front surface of the host machine and is used for controlling the valve assembly and the vacuum system when a sample rod is stored and taken out; the sample rod storage unit array is positioned above the host machine and is used for storing sample rods; the valve component is connected with the sample rod storage unit and used for controlling the connection between different components and between the components and the atmosphere; the vacuum system is positioned in the host machine and used for controlling the overall vacuum degree of the device.
The operation interface comprises a touch control type operation panel and a controller, wherein the touch control type operation panel is arranged at the left lower part of the front surface of the host, and the controller is positioned at the back surface of the touch control type operation panel in the host. The controller is connected with the touch control type operation panel, the valve component and the vacuum system. The upper limit and the lower limit of the vacuum degree in the device are set through the touch control type operation panel, the electromagnetic valve is switched on and off to control the communication state of the air path, the start and stop of the vacuum pump are controlled, the vacuum degree in the device is monitored, and the automatic start and stop of the vacuum pump under the condition that the vacuum degree reaches a specific condition is realized.
The sample rod storage units are arranged in an array and are arranged above the host. The sample rod storage unit comprises a fastening screw, a fixed upper cover, a fixed base, a storage sleeve, a fixed rubber ring and a plug. The sample rod storage units are connected with the vacuum system through self-closing quick-release plugs, and each sample rod storage unit corresponds to one electromagnetic valve so as to realize the independence of vacuum states among different sample rod storage units. The self-closing quick-release plug comprises a self-closing quick-release female head and a self-closing quick-release male head. When the sample rods of different brands are required to be stored, the self-closing quick-release plug is simply disconnected, the matched storage pipe sleeve and the fixed rubber ring are replaced, and the quick-release plug is reconnected, so that the adjustment of the storage function can be easily realized. The fixed upper cover is arranged on the fixed base through the fastening screw, the fixed base is arranged above the host, the fixed rubber ring is arranged in a round hole formed by connecting the fixed upper cover and the fixed base, the outer diameter of the fixed upper cover is equal to the diameter of the round hole, and the inner diameter of the fixed upper cover is equal to the outer diameter of the sample rod storage sleeve, so that the storage sleeves with different sizes can be self-adaptive only by replacing the rubber ring; the plug and the sample rod are of the same size, the sealing rubber ring is arranged at the front end of the plug, and when the number of the sample rod storage units is smaller than that of the sample rod storage units, the plug is only required to be inserted into the idle sample rod storage units, so that the storage sleeve can be prevented from being polluted.
The valve assembly comprises an electromagnetic valve, an electromagnetic pressure relief valve and a manual valve. The electromagnetic valve and the electromagnetic pressure relief valve are arranged inside the host, one end of each electromagnetic valve is connected with a single sample rod storage unit, and the other end of each electromagnetic valve is connected with the vacuum pump, the vacuum gauge and the electromagnetic pressure relief valve after being summarized. By the aid of the connection mode, independence of the vacuum environment of each sample rod storage unit can be guaranteed. The design of the pressure release valve can slow down the fluctuation of pressure in the process of the existence of the sample rod. The manual valve is arranged between the sample rod storage unit and the quick-release plug, and the manual valve has better tightness than the electromagnetic valve and the self-closing quick-release plug, so that the manual valve connected with the sample rod storage unit is closed before the sample rod storage unit is taken down, the sample rod storage unit can be used as vacuum transfer equipment of a sample rod, and vacuum transfer of special samples is realized.
The vacuum system comprises a vacuum gauge and a vacuum pump set, which are all arranged in the host machine and are connected with the vacuum pipeline after the total of the storage units of the sample rods. After the vacuum gauge is started, the vacuum gauge continuously monitors the vacuum degree in the system, a signal is sent through the controller, when the vacuum degree is lower than a set value, the vacuum pump set is automatically stopped, and when the vacuum degree is higher than the set value, the vacuum pump set is automatically started, so that long-term vacuum maintenance under the unattended condition is realized.
Compared with the prior art, the utility model has the following lifting and beneficial effects:
(1) The self-closing quick-release plug is used for realizing connection between the vacuum system and the sample rod storage unit, the type or the number of the sample rod storage unit can be replaced at any time according to laboratory development and demand change, and the satisfaction of personalized demands and adjustable storage capacity are realized.
(2) By adding the manual valve, the device function is expanded, and besides the basic sample rod storage function, the function of transferring samples in vacuum is realized.
Drawings
FIG. 1 is a schematic diagram of the overall apparatus;
FIG. 2 is a schematic illustration of a sample rod storage unit in three states of no insertion, insertion of a sample rod, insertion of a plug;
Wherein: the device comprises a host machine 1, a touch control operation panel 2, a sample rod storage unit 3, a sample rod 4, a plug 5, a vacuum gauge 11, a vacuum pump set 12, an electromagnetic pressure relief valve 13, an electromagnetic valve 14, a fastening screw 31, a fixed upper cover 32, a fixed base 33, a storage sleeve 34, a fixed rubber ring 35, a manual valve 36, a self-closing quick-release female head 37 and a self-closing quick-release male head 38.
Detailed Description
The utility model will be further described with reference to the accompanying drawings. It should be noted that the present utility model may be embodied in many different forms, and that changing the configuration of the device or the shape of the sample rod assembly may also perform the function of the device, and is not limited to the examples herein. All other embodiments based on this example, without making any inventive effort, fall within the scope of the present utility model.
The modularized high-vacuum sample rod storage device comprises a host machine 1, an operation interface, a sample rod storage unit 3, a valve assembly and a vacuum system, wherein the operation interface is arranged on the front surface of the host machine 1 and is used for controlling the valve assembly and the vacuum system when a sample rod 4 is stored and taken out; the array of sample rod storage units 3 is positioned above the host 1 and is used for storing sample rods 4; the valve component is connected with the sample rod storage unit 3 and is used for controlling the connection between different components and between the components and the atmosphere; the vacuum system is positioned in the host 1 and is used for controlling the vacuum degree of the whole device.
The operation interface comprises a touch control type operation panel 2 and a controller, wherein the touch control type operation panel 2 is arranged at the left lower part of the front surface of the host 1, and the controller is positioned at the back surface of the touch control type operation panel 2 in the host 1. The controller is connected with the touch control type operation panel 2, the valve component and the vacuum system. The upper limit and the lower limit of the vacuum degree in the device are set through the touch control type operation panel 2, the solenoid valve 14 is switched on and off to control the communication state of the air passage, the start and stop of the vacuum pump are controlled, the vacuum degree in the device is monitored, and the automatic start and stop of the vacuum pump under the condition that the vacuum degree reaches a specific condition is realized.
The sample rod storage units 3 are arranged in an array and are arranged above the host 1. The sample rod storage unit 3 includes a fastening screw 31, a fixing upper cover 32, a fixing base 33, a storage sleeve 34, a fixing rubber ring 35, and a plug 5. The sample rod storage units 3 are connected with a vacuum system through self-closing quick-release plugs, and each sample rod storage unit 3 corresponds to one electromagnetic valve 14 so as to realize the independence of the vacuum states among the storage units 3 of different sample rods 4. The self-closing quick release plug comprises a self-closing quick release female head 37 and a self-closing quick release male head 38. When the sample rods 4 of different brands are required to be stored, the storage function can be easily adjusted by simply disconnecting the self-closing quick-release plug, replacing the matched storage pipe sleeve and the fixed rubber ring 35 and reconnecting the quick-release plug. The fixed upper cover 32 is arranged on the fixed base 33 through the fastening screw 31, the fixed base 33 is arranged above the host machine 1, the fixed rubber ring 35 is arranged in a round hole formed by connecting the fixed upper cover 32 and the fixed base 33, the outer diameter of the fixed upper cover is equal to the diameter of the round hole, and the inner diameter of the fixed upper cover is equal to the outer diameter of the storage sleeve 34 of the sample rod 4, so that the storage sleeve 34 with different sizes can be self-adaptive only by replacing the rubber ring; the plug 5 and the sample rod 4 are of the same size, the front end of the plug is provided with the sealing rubber ring, and when the number of the sample rod 4 stored is smaller than that of the sample rod storage units 3, the storage sleeve 34 can be prevented from being polluted only by inserting the plug 5 into the idle sample rod storage units 3.
The valve assembly comprises a solenoid valve 14, a solenoid relief valve 13, and a manual valve 36. The electromagnetic valves 14 and the electromagnetic pressure relief valves 13 are all arranged inside the host machine 1, one end of each electromagnetic valve 14 is connected with the single sample rod storage unit 3, and the other end is connected with the vacuum pump, the vacuum gauge 11 and the electromagnetic pressure relief valves 13 after being summarized. By the aid of the connection mode, independence of the vacuum environment of each sample rod storage unit 3 can be guaranteed. The manual valve 36 is arranged between the sample rod storage unit 3 and the quick-release plug, and the manual valve 36 has better tightness than the electromagnetic valve 14 and the self-closing quick-release plug, and the manual valve 36 connected with the sample rod storage unit 3 is closed before the sample rod storage unit 3 is taken down, so that the sample rod storage unit 3 can be used as a vacuum transfer device of the sample rod 4, and the vacuum transfer of a special sample can be realized.
The vacuum system comprises a vacuum gauge 11 and a vacuum pump set 12, which are both arranged in the host 1 and are connected with the vacuum pipeline assembled by the sample rod storage units 3. After the vacuum gauge 11 is started, the vacuum degree in the system is continuously monitored, a signal is sent through the controller, the vacuum pump set 12 is automatically stopped when the vacuum degree is lower than a set value, and the vacuum pump set 12 is automatically started when the vacuum degree is higher than the set value, so that long-term vacuum maintenance under the unattended condition is realized.
In the initial use, the plug 5 should be inserted into each sample rod storage unit 3, and the manual valve 36 at the end of each sample rod storage unit 3 should be opened. The power supply is connected, the switch is turned on, the controller completes the self-inspection of the system, the electromagnetic valve 14 corresponding to each sample rod storage unit 3 is automatically turned on, and the vacuum pump set 12 is started. After the vacuum degree reaches a preset value, the vacuum pump set 12 and the electromagnetic valve 14 are automatically closed. After the starting is completed, the operation interface displays the functions of the current system vacuum degree, the environment temperature and humidity, the system working state, the vacuum degree setting, the taking and placing of the sample rod 4 and the like, and all the electromagnetic valves 14 are in a closed state at the moment. Setting the lowest vacuum value and the highest vacuum value of the system, selecting a sample rod storage unit 3 for storing the sample rod 4 on the touch control operation panel 2, clicking to take out the sample rod storage unit, automatically opening an electromagnetic pressure release valve 13 and an electromagnetic valve 14 corresponding to the sample rod storage unit 3, and closing the electromagnetic valves 14 of the rest sample rod storage units 3. When the air pressure is equal to the atmospheric pressure, the plug 5 can be pulled out, the sample rod 4 can be inserted, the sample rod is clicked and stored, the electromagnetic pressure release valve 13 is closed, and the vacuum pump set 12 is started. When the vacuum value is lower than the set minimum vacuum value, the vacuum pump set 12 is closed and all solenoid valves 14 are automatically opened. The vacuum gauge 11 continuously monitors the vacuum state, when the vacuum value is higher than the set highest vacuum value, the vacuum pump set 12 is automatically opened, and when the vacuum is reduced to the set lowest vacuum value, the pump set is automatically closed, and the circulation is performed in such a way, so that the vacuum in the unattended state is maintained.
When the storage requirement of a laboratory changes, the stored sample rod 4 is not matched with the current sample rod storage unit 3, the corresponding sample rod storage unit 3 is selected, the sample rod is clicked to be taken out, after pressure relief is completed, the corresponding fixed upper cover 32 is loosened, the self-closing quick-release plug is pulled out, the proper fixed rubber ring 35 and the storage sleeve 34 are replaced, the sample rod storage unit 3 is re-fixed, the self-closing quick-release plug is connected, the corresponding sample rod storage unit 3 is selected to be clicked to be stored, and the updating of the storage function of the equipment can be completed.
A particular sample of non-air-accessible sample has been mounted on a sample rod 4 and stored in the device, in some cases requiring the sample rod 4 to be transferred to a glove box or other location. In order to ensure that the sample is not contacted with air, after the manual valve 36 at the tail end of the sample rod storage unit 3 is closed, the corresponding sample rod storage unit 3 is selected, clicking and taking out are carried out, after pressure release is completed, the corresponding fixed upper cover 32 is loosened, the self-closing quick-release plug is pulled out, and the sample rod 4 can be transferred in a vacuum state.
Claims (5)
1. The modularized high-vacuum sample rod storage device is characterized by comprising a host machine, an operation interface, a sample rod storage unit, a valve assembly and a vacuum system; the operation interface is arranged on the front surface of the host computer and used for controlling the valve assembly and the vacuum system; the sample rod storage unit is positioned above the host machine and is used for storing the sample rods; the valve component is connected with the sample rod storage unit and used for controlling the connection between different components and between the components and the atmosphere; the sample rod storage unit is connected with the vacuum system through the self-closing quick-release plug, and the vacuum system is positioned in the host and used for controlling the overall vacuum degree of the device.
2. The modular high vacuum sample rod storage device of claim 1, wherein the operation interface comprises a touch control type operation panel and a controller, the touch control type operation panel is arranged on the front surface of the host, and the controller is arranged on the back surface of the touch control type operation panel; the controller is connected with the touch control type operation panel, the valve component and the vacuum system.
3. The modular high vacuum sample rod storage device of claim 1, wherein the plurality of sample rod storage units are arranged in an array; the sample rod storage unit comprises a fastening screw, a fixing upper cover, a fixing base, a storage sleeve, a fixing rubber ring and a plug, wherein the fixing upper cover is arranged on the fixing base through the fastening screw, and the fixing base is arranged above the host; the fixed rubber ring is arranged in a round hole formed by connecting the fixed upper cover and the fixed base, the outer diameter of the fixed rubber ring is equal to the diameter of the round hole, and the inner diameter of the fixed rubber ring is equal to the outer diameter of the sample rod storage sleeve; the plug and the sample rod are the same in size and are used for being inserted into an idle sample rod storage unit, so that the storage sleeve is prevented from being polluted.
4. The modular high vacuum sample rod storage device of claim 1, wherein the valve assembly comprises a solenoid valve, a solenoid relief valve, and a manual valve; the electromagnetic valves and the electromagnetic pressure relief valves are all arranged in the host, one end of each electromagnetic valve is connected with a single sample rod storage unit, and the other end of each electromagnetic valve is connected with the electromagnetic pressure relief valve after being summarized; the manual valve is arranged between the sample rod storage unit and the self-closing quick-release plug.
5. The modular high vacuum sample rod storage device of claim 1, wherein the vacuum system comprises a vacuum gauge and a vacuum pump set, both of which are installed in the host machine and connected with the vacuum pipeline after the collection of each sample rod storage unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322915133.9U CN221069361U (en) | 2023-10-30 | 2023-10-30 | Modularized high-vacuum sample rod storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322915133.9U CN221069361U (en) | 2023-10-30 | 2023-10-30 | Modularized high-vacuum sample rod storage device |
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| CN221069361U true CN221069361U (en) | 2024-06-04 |
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|---|---|---|---|
| CN202322915133.9U Active CN221069361U (en) | 2023-10-30 | 2023-10-30 | Modularized high-vacuum sample rod storage device |
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| CN (1) | CN221069361U (en) |
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- 2023-10-30 CN CN202322915133.9U patent/CN221069361U/en active Active
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