Physical adsorption instrument

Abstract

This utility model relates to the field of physical adsorption instruments, specifically providing a physical adsorption instrument designed to solve the problem of slow heat dissipation in existing physical adsorption instruments. This utility model provides a physical adsorption instrument including a frame and a heating device mounted on the frame. The heating device includes a mounting plate and two heating furnaces, which are slidably arranged relative to the mounting plate. The two heating furnaces are configured to move towards or away from each other, and are designed to heat a sample tube after moving towards each other and coming into contact. With this configuration, the two separate heating furnaces can move towards each other and come into contact to heat the sample tube. After the sample tube is heated, the two heating furnaces move away from the sample tube in opposite directions, allowing the two furnaces to separate and dissipate heat for cooling. Compared to the semi-enclosed heating furnaces in the prior art, the separate heating furnaces cool down faster, resulting in a faster cooling speed for the heating device and saving operators' waiting time.

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] Existing heating devices are mostly semi-enclosed, requiring manual operation to heat the sample tubes, which can easily cause burns or operational errors. Furthermore, semi-enclosed heating furnaces are large in size and have slow heat dissipation, consuming a significant amount of time during the experiment.

[0003] Therefore, a physical adsorption device is needed that can solve the above problems. Utility Model Content

[0004] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem of slow heat dissipation of the heating device in the existing physical adsorption instrument.

[0005] In a first aspect, the present invention provides a physical adsorption instrument, including a frame and a heating device, the heating device being disposed on the frame; the heating device including a mounting plate and two heating furnaces, the two heating furnaces being slidably disposed relative to the mounting plate, the two heating furnaces being configured to move toward or in opposite directions, and the two heating furnaces being configured to heat the sample tube after moving toward each other and fitting together.

[0006] In the preferred embodiment of the above-mentioned physical adsorption instrument, the heating furnace includes an outer shell, a heat insulation structure, a heat conduction structure, and a heating structure. The heat insulation structure is disposed inside the outer shell, the heating structure and the heat conduction structure are disposed inside the heat insulation structure, and the sample tube is disposed inside the heat insulation structure.

[0007] In the preferred embodiment of the above-mentioned physical adsorption instrument, the heat-conducting structure includes a heat-conducting block and a heat-conducting plate. The heat-conducting block has a receiving groove, the sample tube is placed in the receiving groove, and the heat-conducting plate is disposed at the bottom of the heat-conducting block.

[0008] And / or, the heating furnace also includes an outer cover, a fixing plate and a fixing column, the heating structure includes a heating rod, the outer shell is fixedly mounted on the outer cover, the fixing column is fixedly mounted on the fixing plate, the fixing plate is fixedly connected to the outer cover, and the heating rod extends into the heat-conducting structure to heat the heat-conducting structure.

[0009] In the preferred embodiment of the above-mentioned physical adsorption instrument, the outer shell includes an upper cover plate, a bottom enclosure plate, an outer side plate, and two oppositely arranged side cover plates. The upper cover plate and the bottom enclosure plate are arranged opposite each other. The bottom enclosure plate supports the heat insulation structure. The upper cover plate has a U-shaped groove for avoiding the sample tube. The two side cover plates are arranged parallel to the mounting plate, and the outer side plate is arranged on the side away from the sample tube.

[0010] In the preferred technical solution of the above-mentioned physical adsorption instrument, the heat insulation structure includes a first heat insulation cotton, a second heat insulation cotton, a third heat insulation cotton and two fourth heat insulation cottons. The first heat insulation cotton is located at the top inside the shell and has a groove for avoiding the sample tube. The second heat insulation cotton is located at the bottom inside the shell. The third heat insulation cotton is located on the outer side plate of the shell. The two fourth heat insulation cottons are respectively located on the inner side of the two side cover plates of the shell.

[0011] And / or, the heating furnace also includes a flexible heat insulation sheet covering a U-shaped groove. The flexible heat insulation sheet has a tube hole with an opening on the side of the tube hole facing the sample tube, through which the sample tube enters the tube hole.

[0012] In the preferred embodiment of the above-mentioned physical adsorption apparatus, the heating furnace further includes an outer cover, a fixing plate, and a support column. The support column is disposed inside the outer cover, with one end of the support column connected to the upper cover plate and the other end of the support column connected to the fixing plate.

[0013] In the preferred embodiment of the above-mentioned physical adsorption apparatus, the heating furnace further includes a temperature sensor, which is installed inside the insulation structure and is used to detect the temperature inside the insulation structure.

[0014] And / or, the heating furnace also includes a protective coil, which is disposed on the outside of the housing and is used to protect the wiring harness of the electronic components in the heating furnace.

[0015] In the preferred embodiment of the above-mentioned physical adsorption device, the heating device further includes two sliding groups. Each sliding group includes a first guide rail, a second guide rail, and a slider. The first guide rail is located on the side of the mounting plate facing the heating furnace, and the second guide rail is located on the side of the mounting plate away from the heating furnace. The mounting plate has a mounting seam, and the slider passes through the mounting seam and is slidably connected to the first guide rail and the second guide rail respectively. The slider is fixedly connected to the heating furnace, and the sliders of the two sliding groups reciprocate to make the two heating furnaces move towards each other or in opposite directions.

[0016] In the preferred technical solution of the above-mentioned physical adsorption device, the heating device further includes two limiting plates and four limiting blocks. The two limiting plates are disposed between two second guide rails and are respectively disposed at both ends of the second guide rails. Two limiting blocks are respectively disposed at both ends of each slider. A limiting buckle is disposed on each side of the limiting plate near the two second guide rails. The two limiting buckles near the same second guide rail cooperate with the limiting block stop of the slider on the same side to limit the sliding range of the slider. The position of the limiting buckle is adjustable.

[0017] And / or, the heating device also includes a drive gear and a motor, the motor drives the drive gear to rotate, the motor is disposed between two second guide rails, the drive gear is disposed between two first guide rails, the slider has a rack, and the drive gear engages with the rack of the two sliders.

[0018] In the preferred embodiment of the above-mentioned physical adsorption apparatus, the heating device further includes a connector, which is disposed between the slider and the heating furnace, and is used to connect the slider and the heating furnace.

[0019] In the preferred embodiment of the above-mentioned physical adsorption apparatus, the physical adsorption apparatus further includes a liquid nitrogen cup and two cup lids. The liquid nitrogen cup is vertically mounted on the frame, and the two cup lids are respectively mounted at the bottom of the two heating furnaces. The liquid nitrogen cup has an opening, and the two cup lids can combine to form a complete cover structure to seal the opening when the two heating furnaces are close to each other.

[0020] In the preferred embodiment of the above-mentioned physical adsorption instrument, the physical adsorption instrument further includes an anti-volatilization cap and a PO tube. The anti-volatilization cap is fixed on the frame and is located at the end of the sample tube away from the liquid nitrogen cup. The anti-volatilization cap is used to cover the opening of the liquid nitrogen cup and has a clearance groove for avoiding the PO tube.

[0021] 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 one of the heating furnaces, 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 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.

[0022] 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 furnace, and the first section is arranged at an angle relative to the second section.

[0023] By adopting the above technical solution, this utility model provides a physical adsorption instrument, including a frame and a heating device, the heating device being mounted on the frame; the heating device includes a mounting plate and two heating furnaces, which are slidably arranged relative to the mounting plate. The two heating furnaces are configured to move towards or away from each other, and are arranged to heat the sample tube after moving towards each other and coming together. With this arrangement, the two separate heating furnaces can move towards each other and come together to heat the sample tube. After the sample tube is heated, the two heating furnaces move away from the sample tube in opposite directions, allowing the two heating furnaces to separate and dissipate heat for cooling. Compared to the semi-enclosed heating furnaces in the prior art, the separate heating furnaces cool down faster, resulting in a faster cooling speed for the heating device and saving operators' waiting time. This solution solves the problem of slow heat dissipation in the heating devices of existing physical adsorption instruments. Attached Figure Description

[0024] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0025] Figure 1 This is a schematic diagram of the heating device of the physical adsorption instrument provided by this utility model;

[0026] Figure 2 yes Figure 1 Top view of the heating device in the middle;

[0027] Figure 3 yes Figure 1 Rear view of the heating device in the middle;

[0028] Figure 4 This is a side view of the heating furnace of the physical adsorption apparatus provided by this utility model;

[0029] Figure 5 yes Figure 4 Sectional view at point AA;

[0030] Figure 6 This is a schematic diagram of the heating furnace of the physical adsorption apparatus provided by this utility model;

[0031] Figure 7 yes Figure 6 Sectional view at point BB;

[0032] Figure 8 This is a schematic diagram of the physical adsorption apparatus provided by this utility model;

[0033] Figure 9 yes Figure 8 Sectional view at CC;

[0034] Figure 10 A schematic diagram of the linkage component of the physical adsorption instrument provided by this utility model;

[0035] Figure 11 yes Figure 10 Side view of the linkage component;

[0036] Figure 12 This is a schematic diagram of the structure of the guide component of the physical adsorption instrument provided by this utility model;

[0037] Figure 13 This is a schematic diagram of the anti-volatile cover provided by the physical adsorption instrument of this utility model.

[0038] Figure label:

[0039] 10. Framework;

[0040] 21. Mounting plate;

[0041] 30. Heating furnace;

[0042] 31. Outer shell; 311. Top cover plate; 3112. U-shaped channel; 312. Bottom panel; 313. Side cover plate; 315. Outer side panel;

[0043] 32. Thermal insulation structure;

[0044] 321. First insulation material; 322. Second insulation material; 323. Third insulation material; 324. Fourth insulation material;

[0045] 33. Thermally conductive structure; 331. Thermally conductive block; 3311. Receiving groove; 332. Thermally conductive plate;

[0046] 34. Heating structure; 341. Heating rod;

[0047] 35. Outer cover; 36. Fixing plate; 37. Fixing post;

[0048] 38. Flexible thermal insulation sheet; 381. Pipe hole; 382. Opening;

[0049] 39. Support column;

[0050] 41. First guide rail; 42. Second guide rail; 43. Slider; 44. Limiting plate; 441. Limiting buckle; 45. Limiting block; 46. Drive gear; 47. Motor; 48. Connecting component;

[0051] 51. Liquid nitrogen cup;

[0052] 61. Temperature sensor; 62. Protective coil;

[0053] 71. P0 pipe; 72. Linkage component; 721. First link; 722. Second link; 73. Guide component; 731. Guide groove; 7311. First section; 7312. Second section;

[0054] 80. Anti-volatile cover; 81. Clearance groove. Detailed Implementation

[0055] 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.

[0056] 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.

[0057] 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.

[0058] like Figures 1 to 13 As shown, this utility model provides a physical adsorption instrument, including a frame 10 and a heating device. The heating device is mounted on the frame 10. The heating device includes a mounting plate 21 and two heating furnaces 30. The two heating furnaces 30 are slidably arranged relative to the mounting plate 21. The two heating furnaces 30 are configured to move towards or away from each other. The two heating furnaces 30 are configured to heat the sample tube after moving towards each other and fitting together.

[0059] With this configuration, the two separate heating furnaces 30 can move towards each other and come into contact to heat the sample tube. After the sample tube is heated, the two heating furnaces 30 move in opposite directions away from the sample tube, allowing them to separate and dissipate heat for cooling. Compared to the semi-enclosed heating furnaces in existing technologies, the separate heating furnaces 30 cool down faster, resulting in a faster cooling speed for the heating device and saving operators' waiting time. This solution solves the problem of slow heat dissipation in the heating devices of existing physical adsorption instruments.

[0060] like Figure 6 As shown, the heating furnace 30 includes an outer shell 31, a heat insulation structure 32, a heat conduction structure 33, and a heating structure 34. The heat insulation structure 32 is disposed inside the outer shell 31, and the heating structure 34 and the heat conduction structure 33 are disposed inside the heat insulation structure 32. The sample tube portion is disposed inside the heat insulation structure 32.

[0061] With this configuration, the outer shell 31 can enclose the insulation structure 32 to provide support. The insulation structure 32 encloses the sample tube, heating structure 34, and heat-conducting structure 33, thus providing insulation, preventing heat loss, and enabling the temperature inside the insulation structure 32 to rise more quickly, heating the sample tube to a certain temperature.

[0062] like Figure 6 As shown, the heat-conducting structure 33 includes a heat-conducting block 331 and a heat-conducting plate 332. The heat-conducting block 331 has a receiving groove 3311, in which the sample tube is placed. The heat-conducting plate 332 is disposed at the bottom of the heat-conducting block 331.

[0063] With this arrangement, the heat-conducting plate 332 is supported at the bottom of the heat-conducting block 331, and the sample tube is at least partially placed in the receiving groove 3311. The heat-conducting block 331 and the heat-conducting plate 332 surround the sample tube, so that the temperature can be uniformly transferred from the heat-conducting block 331 and the heat-conducting plate 332 to the sample tube.

[0064] like Figure 5 As shown, the heating furnace 30 also includes an outer cover 35, a fixing plate 36 and a fixing column 37. The heating structure 34 includes a heating rod 341. The outer shell 31 is fixedly mounted on the outer cover 35, and the fixing column 37 is fixedly mounted on the fixing plate 36. The fixing plate 36 is fixedly connected to the outer cover 35. The heating rod 341 extends into the heat-conducting structure 33 to heat the heat-conducting structure 33.

[0065] With this configuration, both the fixing plate 36 and the outer casing 31 are fixed to the outer cover 35. One end of the fixing post 37 is fixed to the fixing plate 36, and the other end is connected to the heating rod 341, thereby fixing the heating rod 341. The fixing post 37 passes through the insulation structure 32, and the heating rod 341 is placed inside the insulation structure 32, avoiding heat waste caused by the heating rod 341 being too long.

[0066] In practical applications, the fixing post 37 can be made of various materials. For example, the fixing post 37 can be made of ceramic rod, or it can be made of glass, etc. Such adjustments and changes to the material of the fixing post 37 do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0067] like Figure 6 As shown, the outer casing 31 includes an upper cover plate 311, a bottom enclosure plate 312, an outer side plate 315, and two oppositely arranged side cover plates 313. The upper cover plate 311 and the bottom enclosure plate 312 are oppositely arranged. The bottom enclosure plate 312 supports the heat insulation structure 32. The upper cover plate 311 has a U-shaped groove 3112, which is used to avoid the sample tube. The two side cover plates 313 are arranged parallel to the mounting plate 21. The outer side plate 315 is arranged on the side away from the sample tube.

[0068] With this configuration, the bottom plate 312 supports the insulation structure 32, heat-conducting structure 33, and heating structure 34 inside the outer shell 31. The top cover plate 311, bottom plate 312, outer side plate 315, and two opposing side cover plates 313 together secure the insulation structure 32 inside the outer shell 31. When the two heating furnaces 30 move towards each other and come into contact, the sample tube enters the interior of the heating furnace 30. The U-shaped groove 3112 avoids the sample tube, allowing it to enter the receiving groove 3311.

[0069] It is understood that in practical applications, the outer shell 31 can be made of various different materials. For example, the outer shell 31 can be made of steel or aluminum alloy, etc. Such adjustments and changes to the material of the outer shell 31 do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0070] like Figure 6 As shown, the thermal insulation structure 32 includes a first thermal insulation cotton 321, a second thermal insulation cotton 322, a third thermal insulation cotton 323, and two fourth thermal insulation cottons 324. The first thermal insulation cotton 321 is disposed at the top inside the outer shell 31 and has a groove for avoiding the sample tube. The second thermal insulation cotton 322 is disposed at the bottom inside the outer shell 31. The third thermal insulation cotton 323 is disposed on the outer side plate 315 of the outer shell 31. The two fourth thermal insulation cottons 324 are respectively disposed on the inner side of the two side cover plates 313 of the outer shell 31.

[0071] With this arrangement, the first insulating cotton 321, the second insulating cotton 322, the third insulating cotton 323, and the two fourth insulating cottons 324 together can surround and enclose the heat-conducting structure 33, effectively preventing heat loss from the heat-conducting structure 33, and enabling the sample tube to be heated to a certain temperature through the heat-conducting structure 33. The groove is used to avoid the sample tube, allowing the sample tube to enter the receiving groove 3311.

[0072] In practical applications, the insulation structure 32 can be configured in various ways. For example, the insulation structure 32 can be configured to include a first insulation cotton 321, a second insulation cotton 322, a third insulation cotton 323, and two fourth insulation cottons 324, with the first insulation cotton 321, the second insulation cotton 322, the third insulation cotton 323, and the two fourth insulation cottons 324 surrounding and wrapping the heat-conducting structure 33. Alternatively, the first insulation cotton 321, the second insulation cotton 322, the third insulation cotton 323, and the two fourth insulation cottons 324 can be configured as a whole, with the heat-conducting structure 33 placed inside the insulation structure 32 for insulation. All these different configurations of the insulation structure 32 do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0073] Furthermore, such as Figure 2 As shown, the heating furnace 30 also includes a flexible heat insulation sheet 38, which covers the U-shaped groove 3112. The flexible heat insulation sheet 38 has a tube hole 381, and the side of the tube hole 381 facing the sample tube has an opening 382, ​​through which the sample tube enters the tube hole 381.

[0074] With this setup, when the heating furnace 30 approaches the sample tube, the sample tube contacts the flexible insulation sheet 382, ​​and the sample tube enters the tube hole 381 through the opening 382. The flexible insulation sheet 382 can cover the area inside the U-shaped groove 3112 except for the sample tube, making the insulation effect of the insulation structure 32 better and preventing heat loss from the U-shaped groove 3112, thus avoiding a longer heating time.

[0075] In practical applications, the flexible thermal insulation sheet 38 can be made of various materials. For example, the flexible thermal insulation sheet 38 can be made of Teflon sheet, or silicone, etc. Such adjustments and changes to the material of the flexible thermal insulation sheet 38 do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0076] Preferably, the flexible thermal insulation sheet 38 is made of Teflon sheet.

[0077] With this setup, the Teflon sheet provides good thermal insulation and is relatively inexpensive. When the sample tube passes through the opening 382, ​​the Teflon sheet can quickly return to its original position. Furthermore, the Teflon sheet is heat-resistant, which better meets the usage requirements of the flexible thermal insulation sheet 38.

[0078] like Figure 6 As shown, it can be imagined that the heating furnace 30 also includes an outer cover 35, a fixing plate 36 and a support column 39. The support column 39 is disposed inside the outer cover 35. One end of the support column 39 is connected to the upper cover plate 311, and the other end of the support column 39 is connected to the fixing plate 36.

[0079] With this configuration, the support column 39 is used to support the upper cover plate 311 and the fixing plate 36, so that the structure of the heating furnace 30 is more stable, and no damage will occur during the heating of the sample tube, thereby increasing the service life of the heating furnace 30.

[0080] In one specific embodiment of this utility model, one end of the support column 39 is connected to the upper cover plate 311, the other end is connected to the fixing piece 36, and the middle part of the support column 39 is connected to the outer shell 31, so that the support column 39 can support the heating furnace 30.

[0081] Furthermore, such as Figure 7 As shown, the heating furnace 30 also includes a temperature sensor 61, which is disposed inside the insulation structure 32 and is used to detect the temperature inside the insulation structure 32.

[0082] With this setup, the temperature sensor 61 can obtain the temperature inside the insulation structure 32, thereby obtaining the heating temperature of the sample tube. When the sample tube is heated to a certain temperature, the heating stops.

[0083] like Figure 4As shown, the heating furnace 30 also includes a protective coil 62, which is disposed on the outside of the housing 31 and is used to protect the wiring harness of the electronic devices in the heating furnace 30.

[0084] With this configuration, the protective coil 62 can protect the wiring harness of electronic components inside the heating furnace 30, preventing wear between the wiring harness and the outer casing 35 during the movement of the heating furnace 30, which would damage the wiring harness and affect the service life of the heating furnace 30.

[0085] like Figure 1 and Figure 3 As shown, the heating device also includes two sliding groups. Each sliding group includes a first guide rail 41, a second guide rail 42, and a slider 43. The first guide rail 41 is disposed on the side of the mounting plate 21 facing the heating furnace 30, and the second guide rail 42 is disposed on the side of the mounting plate 21 away from the heating furnace 30. The mounting plate 21 has a mounting seam. The slider 43 passes through the mounting seam and is slidably connected to the first guide rail 41 and the second guide rail 42 respectively. The slider 43 is fixedly connected to the heating furnace 30. The sliders 43 of the two sliding groups reciprocate to make the two heating furnaces 30 move towards each other or in opposite directions.

[0086] With this configuration, the first guide rail 41 and the second guide rail 42 are respectively positioned on both sides of the mounting plate 21. The slider 43 passes through the mounting seam and is slidably connected to the first guide rail 41 and the second guide rail 42 respectively. The slider 43 reciprocates to drive the heating furnace 30 to reciprocate. The placement of the first guide rail 41 and the second guide rail 42 on both sides of the mounting plate 21 makes the slider 43 more stable and prevents it from tilting or deflecting due to the weight of the heating furnace 30.

[0087] like Figure 3 As shown, the heating device also includes two limiting plates 44 and four limiting blocks 45. The two limiting plates 44 are disposed between the two second guide rails 42. The two limiting plates 44 are respectively disposed at both ends of the second guide rails 42. Each slider 43 is provided with two limiting blocks 45 at both ends. A limiting buckle 441 is provided on each side of the limiting plate 44 near the two second guide rails 42. The two limiting buckles 441 near the same second guide rail 42 cooperate with the limiting block 45 of the slider 43 on the same side to stop and limit the sliding range of the slider 43. The position of the limiting buckle 441 is adjustable.

[0088] With this setup, a limiting buckle 441 is provided at each end of the limiting plate 44 near the two second guide rails 42. The limiting blocks 45 at both ends of the slider 43 are respectively limited and engaged with the limiting buckles 441 on the same side of the two limiting plates 44, so that the sliding position of the slider 43 is limited within a certain range, preventing the heating furnace 30 from falling from the other end and being damaged during the movement.

[0089] The position of the limit buckle 441 is adjustable. The limit position of the limit buckle 441 can be adjusted according to different physical adsorption instruments to adjust the movement range of the heating furnace 30.

[0090] It is conceivable that, such as Figure 3 As shown, the heating device also includes a drive gear 46 and a motor 47. The motor 47 drives the drive gear 46 to rotate. The motor 47 is located between two second guide rails 42, and the drive gear 46 is located between two first guide rails 41. The slider 43 has a rack, and the drive gear 46 engages with the racks of the two sliders 43.

[0091] With this configuration, the motor 47 is connected to the drive gear 46, causing the drive gear 47 to rotate and drive the slider 43 to move, thus realizing the reciprocating movement of the heating furnace 30. The gear and rack drive method makes the movement of the slider 43 more stable, and the heating furnace 30 will not experience violent vibrations during the movement, which can extend the service life of the heating furnace 30.

[0092] like Figure 4 As shown, the heating device also includes a connector 48, which is disposed between the slider 43 and the heating furnace 30. The connector 48 is used to connect the slider 43 and the heating furnace 30.

[0093] With this setup, the connector 48 fixes the heating furnace 30 to the slider 43. By controlling the length of the connector 48, the distance between the heating furnace 30 and the slider 43 can be controlled, thereby preventing interference between the heating furnace 30 and other components of the physical adsorption apparatus during the sliding of the slider 43.

[0094] Furthermore, it can be understood that the physical adsorption apparatus also includes a liquid nitrogen cup 51 and two cup lids. The liquid nitrogen cup 51 is vertically mounted on the frame 10, and the two cup lids are respectively mounted on the bottom of the two heating furnaces 30. The liquid nitrogen cup 51 has an opening 382, ​​and the two cup lids can combine to form a complete cover structure to seal the opening 382 when the two heating furnaces 30 are close to each other.

[0095] With this setup, during the heating of the sample tube by the two heating furnaces 30, the liquid nitrogen cup 51 is positioned below the heating furnace 30. The two cup lids fit together to form a complete lid structure that seals the opening 382, ​​preventing the liquid nitrogen in the cup 51 from evaporating. After the heating furnaces 30 finish heating the sample tube, the two heating furnaces 30 move in opposite directions to separate, and the two cup lids separate as the heating furnaces 30 move. At this time, the heating furnaces 30 avoid the liquid nitrogen cup 51, and the liquid nitrogen cup 51 rises to control the temperature of the sample tube. The left and right opening and closing of the heating furnaces, combined with the up and down movement of the liquid nitrogen cup, forms a function that does not interfere with each other. Through this reasonable layout, the physical adsorption instrument can achieve a fully automated process that is not possible in existing technologies.

[0096] like Figure 8 and Figure 13 As shown, 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 away from the liquid nitrogen cup 51. The anti-volatilization cap 80 is used to cover the opening 382 of the liquid nitrogen cup 51. The anti-volatilization cap 80 has a relief groove 81, which is used to avoid the PO tube 71.

[0097] With this setup, when the two heating furnaces 30 move in opposite directions, the liquid nitrogen cup 51 rises close to the sample tube to control its temperature. An anti-evaporation cap 80 is installed on the frame 10, covering the opening of the liquid nitrogen cup 51 to prevent liquid nitrogen evaporation, thus allowing for more precise temperature control of the sample tube. A P0 tube 71 is used to inspect the sample tube, and a clearance groove 81 allows the P0 tube 71 to be inserted along the groove to inspect the area around the sample tube.

[0098] like Figures 9 to 12 As shown, it can be imagined that 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 10, and the guide 73 is fixedly connected to one of the heating furnaces 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 rotatably connected to the second connecting rod 722, and the end of the second connecting rod 722 facing away from the first connecting rod 721 is slidably connected to the PO tube 71.

[0099] With this setup, the heating furnace 30 moves towards the sample tube to heat it. The guide member 73 moves with the heating furnace 30, and the end of the first connecting rod 721 near the guide member 73 moves with the guide member 73. The guide member 73 drives the first connecting rod 721 to rotate, and the rotation of the first connecting rod 721 pushes the second connecting rod 722 to move, thereby causing the second connecting rod 722 to push the P0 tube 71 away from the sample tube, preventing damage to the P0 tube 71 from the high temperature of the heating furnace 30 heating the sample tube. When the heating furnace 30 finishes heating and moves away from the sample tube, the guide member 73 moves with the heating furnace 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. This causes the first connecting rod 721 to rotate in the opposite direction, pulling the second connecting rod 722, which in turn pulls the P0 tube 71, bringing the P0 tube 71 back closer to the sample tube.

[0100] Furthermore, such as Figure 12As 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 furnace 30, and the first section 7311 is inclined relative to the second section 7312.

[0101] With this configuration, the guide member 73 moves with the heating furnace 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 rotate, thereby controlling the movement of the P0 tube 71, causing the P0 tube 71 to move closer to or away from the sample tube.

[0102] 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 physical adsorption instrument, characterized in that, include: Framework (10); A heating device is mounted on the frame (10); The heating device includes a mounting plate (21) and a heating furnace (30). There are two heating furnaces (30), which are slidably arranged relative to the mounting plate (21). The two heating furnaces (30) are configured to move towards or away from each other, and are configured to heat the sample tube after moving towards each other and fitting together.

2. The physisorption apparatus of claim 1, wherein, The heating furnace (30) includes an outer shell (31), a heat insulation structure (32), a heat conduction structure (33), and a heating structure (34). The heat insulation structure (32) is disposed inside the outer shell (31), the heating structure (34) and the heat conduction structure (33) are disposed inside the heat insulation structure (32), and the sample tube is disposed inside the heat insulation structure (32).

3. The physisorption instrument of claim 2, wherein, The heat-conducting structure (33) includes a heat-conducting block (331) and a heat-conducting plate (332). The heat-conducting block (331) has a receiving groove (3311), the sample tube is placed in the receiving groove (3311), and the heat-conducting plate (332) is disposed at the bottom of the heat-conducting block (331). And / or, the heating furnace (30) further includes an outer cover (35), a fixing plate (36) and a fixing column (37), the heating structure (34) includes a heating rod (341), the outer shell (31) is fixedly disposed on the outer cover (35), the fixing column (37) is fixedly disposed on the fixing plate (36), the fixing plate (36) is fixedly connected to the outer cover (35), and the heating rod (341) extends into the heat-conducting structure (33) to heat the heat-conducting structure (33).

4. The physisorption instrument of claim 2, wherein, The outer casing (31) includes an upper cover plate (311), a bottom enclosure plate (312), an outer side plate (315), and two opposing side cover plates (313). The upper cover plate (311) is opposite to the bottom enclosure plate (312). The bottom enclosure plate (312) supports the heat insulation structure (32). The upper cover plate (311) has a U-shaped groove (3112) for avoiding the sample tube. The two side cover plates (313) are arranged parallel to the mounting plate (21). The outer side plate (315) is located on the side away from the sample tube.

5. The physisorption instrument of claim 4, wherein, The insulation structure (32) includes a first insulation cotton (321), a second insulation cotton (322), a third insulation cotton (323), and two fourth insulation cottons (324). The first insulation cotton (321) is disposed at the top inside the outer shell (31) and has a groove for avoiding the sample tube. The second insulation cotton (322) is disposed at the bottom inside the outer shell (31). The third insulation cotton (323) is disposed on the outer side plate (315) of the outer shell (31). The two fourth insulation cottons (324) are respectively disposed on the inner side of the two side cover plates (313) of the outer shell (31). And / or, the heating furnace (30) further includes a flexible heat insulation sheet (38) covering the U-shaped groove (3112), the flexible heat insulation sheet (38) having a tube hole (381), the tube hole (381) having an opening (382) on the side facing the sample tube, the sample tube passing through the opening (382) into the tube hole (381).

6. The physisorption instrument of claim 4, wherein, The heating furnace (30) also includes an outer cover (35), a fixing plate (36) and a support column (39). The support column (39) is disposed inside the outer cover (35). One end of the support column (39) is connected to the upper cover plate (311), and the other end of the support column (39) is connected to the fixing plate (36).

7. The physisorption instrument of claim 2, wherein, The heating furnace (30) also includes a temperature sensor (61), which is disposed inside the insulation structure (32) and is used to detect the temperature inside the insulation structure (32); And / or, the heating furnace (30) further includes a protective coil (62) disposed on the outside of the housing (31), the protective coil (62) being used to protect the wiring harness of electronic devices in the heating furnace (30).

8. The physisorption instrument of claim 1, wherein, The heating device further includes two sliding groups, each comprising a first guide rail (41), a second guide rail (42), and a slider (43). The first guide rail (41) is disposed on the side of the mounting plate (21) facing the heating furnace (30), and the second guide rail (42) is disposed on the side of the mounting plate (21) away from the heating furnace (30). The mounting plate (21) has a mounting seam, and the slider (43) passes through the mounting seam and is slidably connected to the first guide rail (41) and the second guide rail (42) respectively. The slider (43) is fixedly connected to the heating furnace (30). The sliders (43) of the two sliding groups reciprocate to make the two heating furnaces (30) move towards each other or in opposite directions.

9. The physisorption instrument of claim 8, wherein, The heating device further includes two limiting plates (44) and four limiting blocks (45). The two limiting plates (44) are disposed between the two second guide rails (42). The two limiting plates (44) are respectively disposed at both ends of the second guide rails (42). Each slider (43) has two limiting blocks (45) disposed at both ends. Each limiting plate (44) has a limiting buckle (441) disposed on both sides near the two second guide rails (42). The two limiting buckles (441) near the same second guide rail (42) cooperate with the limiting block (45) of the slider (43) on the same side to limit the sliding range of the slider (43). The position of the limiting buckle (441) is adjustable. And / or, the heating device further includes a drive gear (46) and a motor (47), the motor (47) driving the drive gear (46) to rotate, the motor (47) being disposed between two second guide rails (42), the drive gear (46) being disposed between two first guide rails (41), the slider (43) having a rack, and the drive gear (46) engaging with the racks of the two sliders (43).

10. The physisorption instrument of claim 8, wherein, The heating device further includes a connector (48) disposed between the slider (43) and the heating furnace (30), and the connector (48) is used to connect the slider (43) and the heating furnace (30).

11. The physisorption instrument of claim 1, wherein, The physical adsorption apparatus also includes a liquid nitrogen cup (51) and two cup lids. The liquid nitrogen cup (51) is vertically and vertically mounted on the frame (10). The two cup lids are respectively mounted on the bottom of the two heating furnaces (30). The liquid nitrogen cup (51) has an opening (382). The two cup lids can combine to form a complete cover structure to seal the opening (382) when the two heating furnaces (30) are close to each other.

12. The physisorption apparatus of claim 11, 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 away from the liquid nitrogen cup (51). The anti-volatilization cap (80) is used to cover the opening (382) of the liquid nitrogen cup (51). The anti-volatilization cap (80) has a clearance groove (81) for avoiding the PO tube (71).

13. 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. The guide (73) is fixedly connected to one of the heating furnaces (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 rotatably connected to the second connecting rod (722). The end of the second connecting rod (722) opposite to the first connecting rod (721) is slidably connected to the PO tube (71).

14. The physisorption instrument of claim 13, 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 furnace (30). The first section (7311) is inclined relative to the second section (7312).

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