physisorption apparatus

Abstract

The utility model relates to the field of physical adsorption appearance, specifically provide a physical adsorption appearance, aims at solving the problem that the physical adsorption appearance of prior art is more manual operation and cannot be automated. For this purpose, the utility model provides a kind of physical adsorption appearance, including frame, first drive unit, heating structure, second drive unit and cooling structure, sample tube is fixed in the top of frame;Heating structure is arranged on frame, and can be moved relative to sample tube under the drive of first drive unit, and heating structure is used to heat sample tube;Cooling structure is arranged on frame, and can be moved relative to sample tube under the drive of second drive unit, and cooling structure is used to cool sample tube and handle. Heating structure is used to heat sample tube, and cooling structure can cool sample tube, by the scheme, sample tube is not needed to be placed in heating structure or cooling structure manually, solve the problem that the physical adsorption appearance of prior art is more manual operation.

Description

Technical Field

[0001] This utility model relates to the field of physical adsorption instruments, and specifically provides a physical adsorption instrument. Background Technology

[0002] In the existing technology, most physical adsorption instruments are operated manually. The sample tubes need to be placed manually on the heating device, and then removed as a whole and placed on the cooling device. There is currently no qualified fully automated physical adsorption instrument on the market. Therefore, the risk of operational errors during operation is high, which can easily cause danger to the operator.

[0003] Furthermore, the high temperature after heating in the furnace and the long cooling time result in a longer operating time for the physical adsorption instrument, wasting the operator's experimental time. Automating the physical adsorption instrument can save the operator's time.

[0004] Therefore, a physical adsorption instrument that can solve the above problems is needed. Utility Model Content

[0005] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem that physical adsorption instruments in the prior art require a lot of manual operation and cannot be automated.

[0006] In a first aspect, a physical adsorption apparatus includes a frame, a first driving unit, a heating structure, a second driving unit, and a cooling structure, wherein a sample tube is fixed on the top of the frame; the heating structure is disposed on the frame and is movable relative to the sample tube under the drive of the first driving unit, and the heating structure is used to heat the sample tube; the cooling structure is disposed on the frame and is movable relative to the sample tube under the drive of the second driving unit, and the cooling structure is used to cool the sample tube.

[0007] In the preferred embodiment of the above-mentioned physical adsorption instrument, the physical adsorption instrument further includes a cooling fan. The cooling fan is used to dissipate heat from the heating structure and the sample tube. The cooling fan includes a fan body, a guide pipe, and a fixing lug. The fan body is connected to the guide pipe, which is used to guide the airflow from the fan body. The fixing lug is connected to the guide pipe, which is used to fix the fan body and the guide pipe to the frame.

[0008] In the preferred embodiment of the above-mentioned physical adsorption device, the heating structure includes a first heating furnace and a second heating furnace, and the cooling fan includes a first cooling fan, a second cooling fan and a third cooling fan. The air duct of the first cooling fan is inclined towards the first heating furnace relative to the direction perpendicular to the fixed lug. The air duct of the second cooling fan is perpendicular to the fixed lug. The air duct of the third cooling fan is inclined towards the second heating furnace relative to the direction perpendicular to the fixed lug.

[0009] In the preferred embodiment of the above-mentioned physical adsorption apparatus, the physical adsorption apparatus further includes a PO tube, a linkage component, and a guide component. One end of the PO tube is rotatably connected to the frame, the guide component is fixedly connected to the heating structure, and the linkage component includes a first connecting rod and a second connecting rod. The middle part of the first connecting rod is rotatably connected to the frame, one end of the first connecting rod is movably connected to the guide component, the other end of the first connecting rod is rotatably connected to the second connecting rod, and the end of the second connecting rod opposite to the first connecting rod is slidably connected to the PO tube.

[0010] In the preferred embodiment of the above-mentioned physical adsorption device, the guide member has a guide groove, and the end of the first connecting rod opposite to the second connecting rod is slidably connected to the guide groove. The guide groove includes a first section and a second section connected to each other. The second section is arranged parallel to the moving direction of the heating structure, and the first section is arranged at an angle relative to the second section.

[0011] In the preferred embodiment of the above-mentioned physical adsorption instrument, the physical adsorption instrument further includes an anti-volatile cover and a PO tube. The anti-volatile cover is fixed on the frame and is located at the end of the sample tube away from the cooling structure. The cooling structure has an opening, and the anti-volatile cover is used to cover the opening of the cooling structure. The anti-volatile cover has a clearance groove, which is used to avoid the PO tube.

[0012] In the preferred embodiment of the above-mentioned physical adsorption instrument, the physical adsorption instrument further includes a locking structure, which is fixedly installed on the top of the frame and is used to fix the sample tube.

[0013] And / or, the second drive unit includes a lifting frame and a tray, the tray being movably connected to the lifting frame, the tray being used to support the cooling structure for lifting and lowering the cooling structure.

[0014] In the preferred embodiment of the above-mentioned physical adsorption instrument, the heating structure includes a first heating furnace and a second heating furnace, the sample tube is disposed between the first heating furnace and the second heating furnace, and the first driving unit drives the first heating furnace and the second heating furnace to move toward each other or in opposite directions. The first heating furnace and the second heating furnace move toward each other to fit together to wrap and heat the sample tube.

[0015] In the preferred embodiment of the above-mentioned physical adsorption device, the physical adsorption device further includes two cup lids, which are respectively disposed at the bottom of the first heating furnace and the second heating furnace. The cooling structure includes a cooling cup with an opening. The two cup lids can be combined to form a complete lid structure to seal the opening when the first heating furnace and the second heating furnace are close to each other.

[0016] In the preferred technical solution of the above-mentioned physical adsorption instrument, the first driving unit includes a driving component, a first transmission structure and two second transmission structures. The two second transmission structures are respectively connected to the first heating furnace and the second heating furnace. The two second transmission structures are slidably connected to the frame. The first transmission structure is drivingly connected to the two second transmission structures. The first transmission structure drives the two second transmission structures to move in opposite directions. The driving component is drivingly connected to the first transmission structure.

[0017] By adopting the above technical solution, this utility model provides a physical adsorption instrument, including a frame, a first driving unit, a heating structure, a second driving unit, and a cooling structure. The sample tube is fixed on the top of the frame. The heating structure is disposed on the frame and can move relative to the sample tube under the drive of the first driving unit, and is used to heat the sample tube. The cooling structure is disposed on the frame and can move relative to the sample tube under the drive of the second driving unit, and is used to cool the sample tube. With this configuration, the first driving unit drives the heating structure to move on the frame, and the second driving unit drives the cooling structure to move on the frame, realizing automatic operation of the heating and cooling structures and effectively avoiding the possibility of human error. The heating structure is used to heat the sample tube, and the cooling structure can cool the sample tube. With this physical adsorption instrument, automatic heating and cooling can be achieved without manually placing the sample tube in the heating or cooling structure, solving the problem of excessive manual operation in existing physical adsorption instruments. Attached Figure Description

[0018] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0019] Figure 1 This is a schematic diagram of the physical adsorption apparatus provided by this utility model;

[0020] Figure 2 yes Figure 1 A schematic diagram of the physical adsorption apparatus heating the sample tube.

[0021] Figure 3 yes Figure 1 A schematic diagram of the physical adsorption apparatus used to cool the sample tube.

[0022] Figure 4 yes Figure 3 Sectional view at point AA;

[0023] Figure 5 This is a schematic diagram of the structure of the first drive unit of the physical adsorption instrument provided by this utility model;

[0024] Figure 6 yes Figure 5 A schematic diagram of the first drive unit from another angle;

[0025] Figure 7 This is a schematic diagram of the structure of the first cooling fan of the physical adsorption device provided by this utility model;

[0026] Figure 8 This is a schematic diagram of the structure of the second cooling fan of the physical adsorption device provided by this utility model;

[0027] Figure 9 This is a schematic diagram of the structure of the third cooling fan of the physical adsorption device provided by this utility model;

[0028] Figure 10 This is a schematic diagram of the linkage component of the physical adsorption instrument provided by this utility model;

[0029] Figure 11 yes Figure 10 Side view of the linkage component;

[0030] Figure 12 This is a schematic diagram of the structure of the guide component of the physical adsorption instrument provided by this utility model;

[0031] Figure 13 This is a schematic diagram of the anti-volatile cover of the physical adsorption instrument provided by this utility model.

[0032] Figure label:

[0033] 10. Framework;

[0034] 20. First drive unit; 21. First transmission structure; 22. Second transmission structure;

[0035] 30. Heating structure; 31. First heating furnace; 32. Second heating furnace;

[0036] 40. Second drive unit; 41. Lifting frame; 42. Pallet;

[0037] 50. Cooling structure;

[0038] 60. Cooling fan; 61. Fan body; 62. Air duct; 63. Fixing lug; 601. First cooling fan; 602. Second cooling fan; 603. Third cooling fan;

[0039] 71. P0 pipe; 72. Linkage component; 721. First link; 722. Second link; 73. Guide component; 731. Guide groove; 7311. First section; 7312. Second section;

[0040] 80. Anti-volatile cap; 81. Clearance groove;

[0041] 90. Cup lid. Detailed Implementation

[0042] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0043] It should be noted that in the description of this utility model, terms such as "upper," "lower," "inner," and "outer," which indicate direction or positional relationship, are based on the direction or positional relationship shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] like Figures 1 to 13 As shown, this utility model provides a physical adsorption apparatus, including a frame 10, a first driving unit 20, a heating structure 30, a second driving unit 40, and a cooling structure 50. The sample tube 1 is fixed on the top of the frame 10. The heating structure 30 is disposed on the frame 10 and can move relative to the sample tube 1 under the drive of the first driving unit 20. The heating structure 30 is used to heat the sample tube 1. The cooling structure 50 is disposed on the frame 10 and can move relative to the sample tube 1 under the drive of the second driving unit 40. The cooling structure 50 is used to cool the sample tube 1.

[0046] With this configuration, the first drive unit 20 drives the heating structure 30 to move on the frame 10, and the second drive unit 40 drives the cooling structure 50 to move on the frame 10, thus achieving automatic operation of the heating structure 30 and the cooling structure 50 and effectively avoiding the possibility of human error. The heating structure 30 is used to heat the sample tube 1, and the cooling structure 50 can cool the sample tube 1. Through the physical adsorption instrument of this solution, automatic heating and cooling can be achieved, eliminating the need for manual placement of the sample tube 1 in the heating structure 30 or the cooling structure 50, and solving the problem of excessive manual operation in existing physical adsorption instruments.

[0047] like Figures 7 to 9As shown, the physical adsorption instrument also includes a cooling fan 60, which is used to dissipate heat from the heating structure 30 and the sample tube 1. The cooling fan 60 includes a fan body 61, an air duct 62, and a fixing lug 63. The fan body 61 is connected to the air duct 62, which is used to guide the air from the fan body 61. The fixing lug 63 is connected to the air duct 62, which is used to fix the fan body 61 and the air duct 62 to the frame 10.

[0048] With this configuration, the fan body 61 blows air into the air duct 62, the outlet of which faces the heating structure 30 and the sample tube 1. This directs the airflow generated by the fan body 61 to the heating structure 30 and the sample tube 1, thereby cooling them. The fixing lugs 63 secure the fan body 61 and the air duct 62 to the frame 10, fixing the airflow direction of the cooling fan 60. This allows the cooling fan 60 to blow air onto the heating structure 30 and the sample tube 1, accelerating heat dissipation and lowering their temperature as quickly as possible for further processing of the sample tube.

[0049] It is understandable that in practical applications, the connection between the air duct 62 and the fixed ear 63 can be configured in various ways. For example, the air duct 62 can be fixedly connected to the fixed ear 63, thereby fixing the air outlet angle of the air duct 62. Alternatively, the connection position between the air duct 62 and the fixed ear 63 can be set as a flexible tube, and the air outlet direction can be changed by rotating the outlet angle of the air duct 62. Such adjustments and changes to the connection between the air duct 62 and the fixed ear 63 do not deviate from the principle and protection scope of this utility model and should be included within the protection scope of this utility model.

[0050] Furthermore, such as Figure 3 As shown, the heating structure 30 includes a first heating furnace 31 and a second heating furnace 32. The cooling fan 60 includes a first cooling fan 601, a second cooling fan 602 and a third cooling fan 603. The air duct 62 of the first cooling fan 601 is inclined towards the first heating furnace 31 relative to the direction perpendicular to the fixed lug 63. The air duct 62 of the second cooling fan 602 is perpendicular to the fixed lug 63. The air duct 62 of the third cooling fan 603 is inclined towards the direction of the second heating furnace 32 relative to the direction perpendicular to the fixed lug 63.

[0051] With this configuration, the air duct 62 of the first cooling fan 601 is inclined towards the first heating furnace 31 relative to the direction perpendicular to the fixed lug 63, allowing the first cooling fan 601 to blow air onto the first heating furnace 31, thereby cooling the first heating furnace 31. The air duct 62 of the second cooling fan 602 is perpendicular to the fixed lug 63, allowing the second cooling fan 602 to dissipate heat and cool the sample tube 1, enabling the temperature of the sample tube 1 to drop more quickly for the next operation. The air duct 62 of the third cooling fan 603 is inclined towards the second heating furnace 32 relative to the direction perpendicular to the fixed lug 63, allowing the third cooling fan 603 to blow air onto the second heating furnace 32, thereby cooling the second heating furnace 32.

[0052] In practical applications, the cooling fan 60 can be arranged in various ways. For example, the air duct 62 can be set to guide the airflow of the fan body 61, or the fan body 61 can be set to face the heating structure 30 or the sample tube 1 directly, etc. All such arrangements of the cooling fan 60 do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0053] Preferably, an air duct 62 is used to guide the airflow from the fan body 61.

[0054] With this configuration, the position of the fan body 61 is not restricted by the positions of the heating structure 30 and the sample tube 1, and it can avoid other structures of the physical adsorption instrument.

[0055] Furthermore, such as Figure 4 As shown, the physical adsorption apparatus also includes a PO tube 71, a linkage 72, and a guide 73. One end of the PO tube 71 is rotatably connected to the frame, and the guide 73 is fixedly connected to the heating structure 30. The linkage 72 includes a first connecting rod 721 and a second connecting rod 722. The middle part of the first connecting rod 721 is rotatably connected to the frame 10, one end of the first connecting rod 721 is movably connected to the guide 73, and the other end of the first connecting rod 721 is rotatably connected to the second connecting rod 722. The end of the second connecting rod 722 facing away from the first connecting rod 721 is slidably connected to the PO tube 71.

[0056] With this configuration, the heating structure 30 moves toward the sample tube 1 to heat it. The guide member 73 moves with the heating structure 30, and the end of the first connecting rod 721 near the guide member 73 moves with the guide member 73, causing the first connecting rod 721 to rotate. The rotation of the first connecting rod 721 pushes the second connecting rod 722, which in turn pushes the P0 tube, causing the P0 tube 71 to rotate relative to the frame 10 and move away from the sample tube 1, thus preventing the high temperature of the heating structure 30 heating the sample tube 1 from damaging the P0 tube. When the heating structure 30 finishes heating and moves away from the sample tube 1, the guide member 73 moves with the heating structure 30, and the first connecting rod 721 moves with the guide member 73, resulting in a reverse rotation. The end of the first connecting rod 721 away from the guide member 73 pulls the second connecting rod 722, which in turn pulls the P0 tube 71, causing the P0 tube 71 to rotate relative to the frame 10 and move closer to the sample tube 1.

[0057] In this utility model, the P0 tube 71 includes a first tube segment and a second tube segment. The first tube segment is made of stainless steel and is rotatably connected to the frame 10. The second tube segment is made of plastic composite material and is capable of detecting the area around the sample tube 1.

[0058] In practical applications, the first link 721 can adopt a variety of different structures. For example, the first link 721 can be set as a W shape, or as an S shape, or as a multi-segment bend, etc. Such adjustments and changes to the shape of the linkage 72 do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0059] Furthermore, such as Figure 12 As shown, the guide member 73 has a guide groove 731. The end of the first connecting rod 721 facing away from the second connecting rod 722 is slidably connected to the guide groove 731. The guide groove 731 includes a first section 7311 and a second section 7312 connected to each other. The second section 7312 is arranged parallel to the moving direction of the heating structure 30, and the first section 7311 is inclined relative to the second section 7312.

[0060] With this configuration, the guide member 73 moves with the heating structure 30, allowing the end of the first connecting rod 721 near the guide member 73 to move within the guide groove 731. When the end of the first connecting rod 721 near the guide member 73 slides in the second section 7312, the first connecting rod 721 does not rotate. When the end of the first connecting rod 721 near the guide member 73 slides in the first section 7311, the first connecting rod 721 rotates to drive the second connecting rod 722 to move, thereby driving the P0 tube 71 to rotate relative to the frame 10, thus causing the P0 tube 71 to move closer to or further away from the sample tube 1.

[0061] Furthermore, the physical adsorption apparatus also includes an anti-volatile cover 80 and a PO tube 71. The anti-volatile cover 80 is fixed on the frame 10 and is located at the end of the sample tube 1 away from the cooling structure 50. The cooling structure 50 has an opening, and the anti-volatile cover 80 is used to cover the opening of the cooling structure 50. The anti-volatile cover 80 has a relief groove 81, which is used to avoid the PO tube 71.

[0062] With this setup, when the cooling structure 50 approaches the sample tube 1 to cool it, the anti-volatile cover 80 covers the opening of the cooling mechanism 50, thereby allowing the temperature of the cooling structure 50 to be better isolated from the outside environment.

[0063] Furthermore, the cooling structure 50 typically uses a cooling cup and a temperature regulating liquid placed inside the cooling cup for cooling. The anti-evaporation cap 80 can prevent the temperature regulating liquid inside the cooling structure 50 from evaporating, thereby improving the cooling effect of the cooling structure 50.

[0064] The P0 tube 71 is arranged around the sample tube 1 for detection, and the clearance groove 81 can avoid the P0 tube 71, so that the P0 tube 71 can extend into the periphery of the sample tube 1.

[0065] In practical applications, the temperature regulating fluid can be set in various ways. For example, the temperature regulating fluid can be liquid nitrogen, liquid oxygen, or liquid carbon dioxide, etc. Such adjustments to the type of temperature regulating fluid do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0066] Furthermore, the physical adsorption apparatus also includes a locking structure, which is fixedly mounted on the top of the frame 10 and is used to fix the sample tube 1.

[0067] With this setup, the locking structure can fix the sample tube 1, facilitating the heating structure 30 to heat the sample tube 1 and the cooling structure 50 to cool the sample tube 1.

[0068] In one specific embodiment of this utility model, the locking structure is set as a quick-release and quick-lock structure, which quickly locks the sample tube 1 to facilitate the physical adsorption instrument to process the sample tube 1. When disassembling, it can be quickly removed. Compared with the existing technology of manually tightening the fasteners to fix the sample tube, the quick-release and quick-lock structure can improve the efficiency of the physical adsorption instrument.

[0069] In one specific embodiment of the present invention, the second drive unit 40 includes a lifting frame 41 and a tray 42. The tray 42 is movably connected to the lifting frame 41 and is used to support the cooling structure 50 to lift and lower the cooling structure 50.

[0070] With this configuration, the tray 42 can slide up and down relative to the lifting frame 41, thereby raising and lowering the cooling structure 50, so that the cooling structure 50 is closer to or further away from the sample tube 1.

[0071] like Figure 3 As shown, the heating structure 30 includes a first heating furnace 31 and a second heating furnace 32. The sample tube 1 is disposed between the first heating furnace 31 and the second heating furnace 32. The first driving unit 20 drives the first heating furnace 31 and the second heating furnace 32 to move towards each other or in opposite directions. The first heating furnace 31 and the second heating furnace 32 move towards each other to fit together and wrap around and heat the sample tube 1.

[0072] With this configuration, the first driving unit 20 drives the first heating furnace 31 and the second heating furnace 32 to close and heat the sample tube 1. After heating, the first heating furnace 31 and the second heating furnace 32 separate under the drive of the first driving unit 20 to remove the sample tube 1 from the heating structure 30. Separating the first heating furnace 31 and the second heating furnace 32 allows for faster heat dissipation, and also makes it easier to approach and separate the heating structure 30 from the sample tube 1, thus facilitating operation.

[0073] It is understood that in this invention, the first heating furnace 31 and the second heating furnace 32 are configured to move left and right, and the cooling structure 50 is configured to move up and down, so that when the first heating furnace 31 and the second heating furnace 32 are closed, the cooling structure 50 is located below the heating structure 30. The left and right opening and closing of the first heating furnace 31 and the second heating furnace 32, combined with the up and down movement of the cooling structure 50, form a function that does not interfere with each other.

[0074] Furthermore, it can be understood that the physical adsorption device also includes two cup lids 90, which are respectively disposed at the bottom of the first heating furnace 31 and the second heating furnace 32. The cooling structure 50 includes a cooling cup with an opening. The two cup lids 90 can combine to form a complete lid structure to seal the opening when the first heating furnace 31 and the second heating furnace 32 are close to each other.

[0075] With this configuration, when the first heating furnace 31 and the second heating furnace 32 are in contact with each other to heat the sample tube 1, the two cup lids 90 located at the bottom of the first heating furnace 31 and the second heating furnace 32 fit together to form a complete lid structure. This complete lid structure can seal the opening of the cooling structure 50. The cooling cup uses a temperature regulating liquid for cooling, and the sealing of the opening by the cup lids 90 can prevent the temperature regulating liquid inside the cooling mechanism 50 from evaporating. After the first heating furnace 31 and the second heating furnace 32 move in opposite directions and separate, the cooling mechanism 50 moves upward to control the temperature of the sample tube 1. The two cup lids 90 fitting together to form a complete lid structure prevents the temperature regulating liquid inside the cooling cup from evaporating, ensuring the cooling function of the cooling structure 50 and avoiding the waste of temperature regulating liquid caused by repeated additions.

[0076] It is conceivable that the first drive unit 20 includes a drive component, a first transmission structure 21 and two second transmission structures 22. The two second transmission structures 22 are respectively connected to the first heating furnace 31 and the second heating furnace 32. The two second transmission structures 22 are slidably connected to the frame 10. The first transmission structure 21 is driven to move the two second transmission structures 22 in opposite directions. The drive component is driven to move the first transmission structure 21.

[0077] With this configuration, the driving component drives the first transmission structure 21 to rotate, and the first transmission structure 21 can drive the two second transmission structures 22 to move in opposite directions or in the opposite direction, so that the first heating furnace 31 and the second heating furnace can be brought into contact or separated.

[0078] In practical applications, the first transmission structure 21 and the second transmission structure 22 can be configured in various ways. For example, the first transmission structure 21 can be configured as a gear and the second transmission structure 22 as a rack, or the first transmission structure can be configured as a lead screw and the second transmission structure as a slider, etc. Such different configurations of the first transmission structure 21 and the second transmission structure 22 do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0079] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A physisorption instrument, characterized by, include: The frame (10) and the sample tube (1) are fixed on the top of the frame (10); First drive unit (20); A heating structure (30) is disposed on the frame (10) and is movable relative to the sample tube (1) under the drive of the first driving unit (20). The heating structure (30) is used to heat the sample tube (1). Second drive unit (40); A cooling structure (50) is disposed on the frame (10) and can move relative to the sample tube (1) under the drive of the second drive unit (40). The cooling structure (50) is used to cool the sample tube (1).

2. The physisorption apparatus of claim 1, wherein, The physical adsorption apparatus also includes a cooling fan (60), which is used to dissipate heat from the heating structure (30) and the sample tube (1). The cooling fan (60) includes a fan body (61), a duct (62), and a fixing lug (63). The fan body (61) is connected to the duct (62), which is used to guide the airflow from the fan body (61). The fixing lug (63) is connected to the duct (62), which is used to fix the fan body (61) and the duct (62) to the frame (10).

3. The physisorption instrument of claim 2, wherein, The heating structure (30) includes a first heating furnace (31) and a second heating furnace (32). The cooling fan (60) includes a first cooling fan (601), a second cooling fan (602) and a third cooling fan (603). The air duct (62) of the first cooling fan (601) is inclined toward the first heating furnace (31) relative to the direction perpendicular to the fixed lug (63). The air duct (62) of the second cooling fan (602) is perpendicular to the fixed lug (63). The air duct (62) of the third cooling fan (603) is inclined toward the direction perpendicular to the fixed lug (63) and toward the second heating furnace (32).

4. The physisorption instrument of claim 1, wherein, The physical adsorption apparatus further includes a PO tube (71), a linkage (72), and a guide (73). One end of the PO tube (71) is rotatably connected to the frame (10), and the guide (73) is fixedly connected to the heating structure (30). The linkage (72) includes a first connecting rod (721) and a second connecting rod (722). The middle part of the first connecting rod (721) is rotatably connected to the frame (10), one end of the first connecting rod (721) is movably connected to the guide (73), and the other end of the first connecting rod (721) is rotatably connected to the second connecting rod (722). The end of the second connecting rod (722) facing away from the first connecting rod (721) is slidably connected to the PO tube (71).

5. The physisorption instrument of claim 4, wherein, The guide member (73) has a guide groove (731). The end of the first connecting rod (721) facing away from the second connecting rod (722) is slidably connected to the guide groove (731). The guide groove (731) includes a first section (7311) and a second section (7312) connected to each other. The second section (7312) is arranged parallel to the moving direction of the heating structure (30). The first section (7311) is inclined relative to the second section (7312).

6. The physisorption instrument of claim 1, wherein, The physical adsorption apparatus also includes an anti-volatilization cap (80) and a PO tube (71). The anti-volatilization cap (80) is fixed on the frame (10) and is located at the end of the sample tube (1) away from the cooling structure (50). The cooling structure (50) has an opening, and the anti-volatilization cap (80) is used to cover the opening of the cooling structure (50). The anti-volatilization cap (80) has a clearance groove (81), which is used to avoid the PO tube (71).

7. The physisorption instrument of claim 1, wherein, The physical adsorption apparatus also includes a locking structure, which is fixedly disposed on the top of the frame (10) and is used to fix the sample tube (1); And / or, the second drive unit (40) includes a lifting frame (41) and a tray (42), the tray (42) being movably connected to the lifting frame (41), the tray (42) being used to support the cooling structure (50) to lift the cooling structure (50).

8. The physisorption instrument of claim 1, wherein, The heating structure (30) includes a first heating furnace (31) and a second heating furnace (32). The sample tube (1) is disposed between the first heating furnace (31) and the second heating furnace (32). The first driving unit (20) drives the first heating furnace (31) and the second heating furnace (32) to move towards each other or in opposite directions. The first heating furnace (31) and the second heating furnace (32) move towards each other and fit together to wrap and heat the sample tube (1).

9. The physisorption instrument of claim 8, wherein, The physical adsorption device also includes two cup lids (90), which are respectively disposed at the bottom of the first heating furnace (31) and the second heating furnace (32). The cooling structure (50) includes a cooling cup with an opening. The two cup lids (90) can combine to form a complete lid structure to seal the opening when the first heating furnace (31) and the second heating furnace (32) are close to each other.

10. The physisorption instrument of claim 8, wherein, The first drive unit (20) includes a drive component, a first transmission structure (21) and two second transmission structures (22). The two second transmission structures (22) are respectively connected to the first heating furnace (31) and the second heating furnace (32). The two second transmission structures (22) are slidably connected to the frame (10). The first transmission structure (21) is driven to drive the two second transmission structures (22). The first transmission structure (21) drives the two second transmission structures (22) to move in opposite directions. The drive component is driven to drive the first transmission structure (21).

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