CN214604486U

CN214604486U - Glove box and PPMS interconnection device

Info

Publication number: CN214604486U
Application number: CN202023111465.4U
Authority: CN
Inventors: 王冰雷; 董金奎
Original assignee: Fermi Instruments Shanghai Co ltd
Current assignee: Fermi Instruments Shanghai Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-11-05
Anticipated expiration: 2030-12-22

Abstract

The utility model provides a glove box and PPMS interconnection device, its characterized in that: comprises a glove box, a PPMS, a shutter device, a vacuum pipeline, a sample grabbing device and a sample transfer rod; be provided with sample parking platform and push-pull valve in the glove box, PPMS includes inert gas storage device, sample parking platform and push-pull valve, is provided with the observation window on the glove box, wherein the beneficial effects of the utility model are that: the design of realizing the pollution-free transmission of sample, the design of this structure makes the sample be in all the time in the transmission in-process under vacuum and inert gas's protection, improves sample life, realizes the structural design of sample normal position transmission, and the design of this structure makes the transmission of sample all be normal position transmission to reduce the time of changing a sample, raise the efficiency.

Description

Glove box and PPMS interconnection device

Technical Field

The utility model relates to an ultrahigh vacuum field, in particular to glove box and PPMS interconnection device.

Background

PPMS is a Physical Property Measurement System. The product ppms (physics performance Measurement system) of the united states Quantum Design company is a comprehensive Measurement system for measuring the direct current magnetization and alternating current magnetic susceptibility, direct current resistance, alternating current transport Property, specific heat and heat conduction, torque magnetic susceptibility and the like of a material under the background of low temperature and strong magnetic field, and when a sample is replaced, the sample needs to be directly taken out of a Measurement chamber and directly exposed in the air, so that the sample is polluted, and the service life of the sample is shortened. In order to solve the problems, I have developed a glove box and PPMS interconnection device, and the problem of pollution-free transfer of samples is solved exactly, and the sample changing efficiency of PPMS is improved well.

Disclosure of Invention

In order to solve the technical problem, the utility model discloses a glove box and PPMS interconnection device, the technical scheme of the utility model is implemented like this:

a glove box and PPMS interconnection device comprises a glove box, a PPMS, a shutter device, a vacuum pipeline, a sample grabbing device, a sample transfer rod and a gate valve; sample grabbing device is provided with the sample and parks the platform, be provided with the observation window on the glove box, be provided with the visual window on the vacuum pipe, vacuum pipe connects PPMS with the glove box, the shutter gear is located vacuum pipe with the glove box junction, sample grabbing device with pass appearance pole is located on the vacuum pipe, the sample parks the platform and connects pass appearance pole, the push-pull valve is located the sample parks the platform with the vacuum pipe junction, state PPMS and include inert gas storage device, inert gas storage device connects vacuum pipe.

Preferably, the shutter device is sealed from the vacuum conduit by an O-ring.

Preferably, the inert gas storage device is an inert gas storage device.

Preferably, the sample transfer rod is a magnetic sample transfer rod.

Preferably, the sample gripping device is further provided with a sealing ring.

Preferably, a sample preparation and measurement device is also included, the sample preparation and measurement device being connected to the PPMS.

By implementing the technical scheme of the utility model, the technical problems of insufficient service life, overlong sample changing time and overlow efficiency of samples in the ultrahigh vacuum field in the prior art can be solved; implement the technical scheme of the utility model, through the design of pollution-free transmission, can realize with the structural design of sample normal position transmission that the sample is in all the time under vacuum and inert gas's the protection in the transmission course, the transmission that improves sample life, sample all is the normal position transmission to reduce the time of changing a design, the technological effect of raising the efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only one embodiment of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a back view of the structure of the present invention;

FIG. 3 is a schematic structural diagram of a sample docking station.

In the above drawings, the reference numerals denote:

1, glove box

1-1, observation window

2，PPMS

2-1, inert gas storage device

3, shutter device

4, vacuum pipeline

4-1, visual window

5, sample gripping device

5-1, sample parking platform

5-2, sealing ring

6, sample transfer rod

7, gate valve

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Examples

In a specific embodiment, as shown in fig. 1, 2 and 3, an interconnection device of a glove box and a PPMS comprises a glove box 1, a PPMS2, a shutter device 3, a vacuum pipeline 4, a sample gripping device 5, a magnetic sample transfer rod 6 and a gate valve 7; the sample grabbing device 5 is provided with a sample parking platform 5-1, an observation window 1-1 is arranged on the glove box 1, a visual window 4-1 is arranged on the vacuum pipeline 4, the vacuum pipeline 4 is connected with the PPMS2 and the glove box 1, the shutter device 3 is positioned at the joint of the vacuum pipeline 4 and the glove box 1, the sample grabbing device 5 and the sample transfer rod 6 are positioned on the vacuum pipeline 4, the sample parking platform 5-1 is connected with the vacuum pipeline 4, the gate valve 7 is positioned at the joint of the sample parking platform 5-1 and the vacuum pipeline 4, the PPMS2 comprises an inert gas storage device 2-1, and the inert gas storage device 2-1 is connected with the vacuum pipeline 4.

In this embodiment, glove box 1 and PPMS2 are interconnected by vacuum pipe 4, vacuum pipe 4 and glove box 1 are isolated by shutter device 3, vacuum pipe 4 and PPMS2 are connected by gate valve 7, vacuum pipe 4 is provided with sample gripping device 5 and sample transfer rod 6 with sample parking platform 5-1, vacuum pipe 4 is provided with observation window 4-1 made of glass material at the in-situ sample transfer position, so that observation in the sample transfer process is facilitated.

The specific application method of this example is as follows: firstly, preparing a plurality of samples in a glove box 1, then filling inert gas in a vacuum pipeline 4 into the vacuum pipeline 4 for cleaning by using inert gas in an inert gas storage device 2-1 in an initial state, closing a valve after cleaning for three times, connecting a shutter device 3 with the vacuum pipeline 4 in the glove box 1, opening the shutter device 3 after the glove box 1 and the vacuum pipeline 4 are balanced in air pressure, then putting a sample parking platform 5-1 containing a plurality of sample parking positions on a sample transfer rod 6 in the vacuum pipeline 4 into the glove box 1, putting the prepared samples into the sample parking platform 5-1, retracting the sample transfer rod 6 and closing the shutter device 3.

After the shutter device 3 is closed, the sample parked on the sample parking stage 5-1 is grasped through the visible window 4-1 using the sample grasping device 5. The visual window 4-1 is positioned at the in-situ sample transfer position of the vacuum pipeline 4.

After the sample grabbing is completed, the vacuum pipeline 4 is cleaned by using the inert gas in the inert gas storage device 2-1 for three times, the valve is closed, the gate valve 7 located at the joint of the vacuum pipeline 4 and the PPMS2 is opened, the sample is inserted into the measurement chamber of the PPMS2 by using the sample grabbing device 5, the sample grabbing device 5 is retracted, the gate valve 7 is closed, and the PPMS2 is operated to perform related measurement on the sample.

After the relevant measurement of the sample is completed, the gate valve 7 is opened, the measured sample is taken out by the sample gripping device 5 and placed on the sample parking platform 5-1, then another sample is gripped from the sample parking platform 5-1 and placed in the measurement cavity in the PPMS2, the sample gripping device 5 is retracted, the gate valve 7 is closed, and the measurement is started. This greatly improves the efficiency of reloading multiple samples.

The vacuum interconnection between PPMS2 and glove box 1 has been realized to this embodiment, has increased the protection when PPMS2 changes the dress sample for the sample is not contaminated, improves the sample life-span. The sample is transferred from the PPMS2 to the glove box 1 in situ, and the sample changing efficiency is improved.

In a preferred embodiment, the shutter device 3 is sealed from the vacuum line 4 by an O-ring.

The present embodiment provides a sealing method for the shutter device 3 and the vacuum duct 4, but the present invention is not limited to the O-ring sealing, and any sealing method having the same or similar effect to the present sealing method may be used.

In a preferred embodiment, the inert gas storage device 2-1 is a helium cylinder or an argon cylinder.

The embodiment provides two options for the inert gas storage device 2-1, but the patent is not limited to helium or argon cylinders, and other inert gas storage devices can be used.

In a preferred embodiment, the transfer rod 6 is a magnetic transfer rod.

The magnetic sample transmission rod can linearly move and rotate, and the high-precision bearing in the magnetic sample transmission rod ensures that the sample transmission rod 6 can smoothly transmit samples at low temperature.

In a preferred embodiment, the sample gripping means 5 is further provided with a sealing ring 5-2.

In the embodiment, when the sample gripping device 5 grips or releases a sample, the sealing ring 5-2 on the sample gripping device 5 performs O-ring sealing, so that vacuum in the sample transfer process is ensured, and the stability of the device is improved.

In a preferred embodiment, a sample preparation and measurement device is also included, the sample preparation and measurement device being connected to PPMS 2.

The device can be used together with other sample preparation and measurement devices through the characteristics of the PPMS2, so as to meet the requirements of different situations, such as MBE, ARPES, STM and the like.

It should be understood that the above description is only exemplary of the present invention, and is not intended to limit the present invention, and that any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included within the scope of the present invention.

Claims

1. The utility model provides a glove box and PPMS interconnection device which characterized in that: the device comprises a glove box, a PPMS, a shutter device, a vacuum pipeline, a sample grabbing device, a sample transfer rod and a gate valve; sample grabbing device is provided with the sample platform of parking, be provided with the observation window on the glove box, be provided with the visual window on the vacuum pipe, vacuum pipe connects PPMS with the glove box, the shutter gear is located vacuum pipe with the glove box junction, sample grabbing device with pass appearance pole is located on the vacuum pipe, the sample platform of parking is connected pass appearance pole, the push-pull valve is located the sample platform of parking with the vacuum pipe junction, PPMS includes inert gas storage device, inert gas storage device connects vacuum pipe.

2. A glove box and PPMS interconnection apparatus as claimed in claim 1, wherein: the shutter device and the vacuum pipeline are sealed through an O-ring.

3. A glove box and PPMS interconnection apparatus as claimed in claim 1, wherein: the inert gas storage device is a helium steel cylinder or an argon steel cylinder.

4. A glove box and PPMS interconnection apparatus as claimed in claim 1, wherein: the sample transfer rod is a magnetic sample transfer rod.

5. A glove box and PPMS interconnection apparatus as claimed in claim 1, wherein: the sample grabbing device is further provided with a sealing ring, and the sealing ring is located on the sample grabbing rod.

6. A glove box and PPMS interconnection apparatus as claimed in claim 1, wherein: the device also comprises a sample preparation and measurement device, and the sample preparation and measurement device is connected with the PPMS.