Sample preparation apparatus and sorption apparatus

Abstract

The utility model relates to adsorption appearance technical field, concretely provides a kind of sample pretreatment equipment and adsorption appearance, the present application aims at solving how to improve the problem of test efficiency.For this purpose, the sample pretreatment equipment of the present application is connected by the one end of first installation passage on mounting mechanism with inlet and outlet air mechanism, the other end is used to install sample tube neck, and first installation passage is coaxially arranged with heating passage on heating furnace, so that the tube bottom of sample tube installed in first installation passage can be inserted into corresponding heating passage when heating furnace is close to mounting mechanism, pretreatment operation is carried out, and then improve test efficiency, solve the problem that test efficiency is influenced by needing to be manually loaded into heating furnace and manually connected with inlet and outlet air mechanism in prior art.

Description

Technical Field

[0001] This utility model relates to the field of adsorption instruments, specifically providing a sample pretreatment device and an adsorption instrument. Background Technology

[0002] Before determining data such as the specific surface area and pore size distribution of a sample, pretreatment is required to remove impurities and chemically adsorbed interfering substances from the sample surface and pores. This ensures that the target gas can fully contact the sample during subsequent adsorption tests, thereby accurately measuring parameters such as specific surface area and pore size distribution. Pretreatment involves operations such as evacuation and gas filling at high temperatures. However, before pretreatment, the sample tubes need to be manually loaded into the heating furnace and the gas inlet and outlet mechanisms need to be manually connected, which affects experimental efficiency.

[0003] Therefore, a new technical solution is needed in this field to solve the above problems. Utility Model Content

[0004] To address at least one problem in the prior art, namely, how to improve experimental efficiency, this application provides a sample pretreatment device, the sample pretreatment device comprising:

[0005] Organism;

[0006] The mounting mechanism is disposed on the body and has a first mounting channel extending in a first direction for mounting the neck of the sample tube.

[0007] A heating furnace is mounted on the machine body and has a heating channel thereon for mounting the bottom of the sample tube. The heating channel is coaxially arranged with the first mounting channel and is configured to be able to approach or move away from the mounting mechanism. When the heating furnace is close to the mounting mechanism, the bottom of the sample tube can be inserted into the heating channel; when the heating furnace is away from the mounting mechanism, the sample tube can be detached from the heating channel.

[0008] An inlet / outlet gas mechanism is disposed within the machine body and connected to the end of the first mounting channel away from the sample tube.

[0009] In the preferred embodiment of the above-mentioned sample pretreatment equipment, the installation mechanism includes:

[0010] Sealing components;

[0011] The mounting connector is disposed on the machine body and has the first mounting channel thereon;

[0012] A movable component, which is movably mounted on the mounting connector and capable of pushing the sealing component to press and seal the sample tube when movable relative to the mounting connector.

[0013] In a preferred embodiment of the above-mentioned sample pretreatment device, the output end of the movable component can be connected to the sealing component and is configured to drive the sealing component to move between a first position and a second position along the first direction; when the sealing component moves to the first position, it cooperates with the mounting joint to press and seal the sample tube installed in the first mounting channel; when the sealing component moves to the second position, it disengages from the mounting joint to facilitate the installation and removal of the sample tube.

[0014] In a preferred embodiment of the above-mentioned sample pretreatment equipment, a second mounting channel is provided on the mounting joint along the first direction; and

[0015] The movable component includes a drive component and a quick-connect lifting component. The drive component is disposed on the side of the mounting joint away from the sealing component. The quick-connect lifting component includes a rod inserted into the second mounting channel, with both ends of the rod extending out of the second mounting channel along the first direction. One end of the rod is connected to the drive component, and the other end is connected to the sealing component, so that the sealing component can move between the first position and the second position along the first direction under the action of the drive component and the rod.

[0016] In a preferred embodiment of the above-mentioned sample pretreatment equipment, the driving assembly includes a quick-connect insert and a driving component connected to the quick-connect insert. Both the quick-connect insert and the driving component are disposed on the side of the mounting joint away from the sealing assembly, and the quick-connect insert is provided with a first connecting structure.

[0017] The rod has a second connecting structure at the end away from the sealing assembly. The second connecting structure cooperates with the first connecting structure, so that when the quick insert moves under the action of the driving member, it drives the sealing assembly on the rod to move between the first position and the second position.

[0018] In a preferred embodiment of the above-mentioned sample pretreatment equipment, the first connecting structure comprises an adjustment hole and a transition zone. The adjustment hole allows the rod to pass through and enables the quick-connect insert to move relative to the rod along the length direction of the adjustment hole. The transition zone is located on the side of the quick-connect insert away from the sealing assembly and corresponds to the position of the adjustment hole. The dimension of the transition zone to the side of the quick-connect insert closer to the sealing assembly gradually changes along the length direction of the adjustment hole. The second connecting structure comprises a guide abutting against the transition zone. The guide can move along the transition zone when the driving member drives the quick-connect insert to move, thereby causing the sealing assembly to move between the first position and the second position.

[0019] The first connection structure is a transition zone located on the side of the quick insert away from the sealing assembly, and the size of the transition zone to the side of the quick insert closer to the sealing assembly gradually changes along the length direction of the adjustment hole; the second connection structure is a connection hole provided on the rod and allowing the quick insert to pass through, and when the quick insert moves under the drive of the drive member and the transition zone passes through the connection hole, it drives the sealing assembly to move between the first position and the second position.

[0020] In the preferred embodiment of the above-mentioned sample pretreatment equipment, the transition zone is an inclined surface or a curved surface.

[0021] In a preferred embodiment of the above-mentioned sample pretreatment equipment, the driving assembly further includes a quick-connect guide, which is disposed on the side of the mounting joint away from the sealing assembly and forms a guide channel therein; the quick-connect insert is movably disposed within the guide channel so that the quick-connect insert can move within the guide channel under the drive of the driving assembly; and

[0022] The guide channel is connected to the second installation channel, and the second connection structure is located within the guide channel.

[0023] In the preferred embodiment of the above-mentioned sample pretreatment equipment, the rod includes a first connecting rod and a second connecting rod. The second connecting rod is inserted into the second mounting channel, and its two ends extend out of the second mounting channel. One end of the second connecting rod is connected to the first connecting rod, and the other end is provided with the sealing assembly.

[0024] The end of the first connecting rod away from the sealing assembly is connected to the drive assembly.

[0025] In the preferred embodiment of the above-mentioned sample pretreatment equipment, the quick-connect lifting assembly further includes an elastic element; and

[0026] The second connecting rod is a sleeve structure, with a portion of the first connecting rod disposed inside the second connecting rod and the other portion extending out of the second connecting rod and connected to the driving assembly; an elastic element is provided on the first connecting rod located inside the second connecting rod, and the two ends of the elastic element along the first direction are respectively connected to a first limiting element on the first connecting rod and a second limiting element on the second connecting rod; or, the first connecting rod is a sleeve structure, with a portion of the second connecting rod disposed inside the second connecting rod and the other portion extending out of the second connecting rod and connected to the sealing assembly; an elastic element is provided on the second connecting rod located inside the first connecting rod, and the two ends of the elastic element along the first direction are respectively connected to a first limiting element on the first connecting rod and a second limiting element on the second connecting rod.

[0027] In the preferred embodiment of the above-mentioned sample pretreatment equipment, the first limiting member is movably disposed on the first connecting rod; and / or

[0028] The second limiting member is movably disposed on the second connecting rod.

[0029] In the preferred embodiment of the above-mentioned sample pretreatment equipment, the sealing assembly includes a sealing plate and an elastic sealing element. The sealing plate is provided with a third mounting channel communicating with the first mounting channel and is connected to the movable component. The elastic sealing element is located on the side of the sealing plate near the mounting joint and can be sleeved on the sample tube so that when the sealing plate moves from the second position to the first position, it cooperates with the mounting joint to squeeze the elastic sealing element, thereby pressing and sealing the sample tube.

[0030] In a preferred embodiment of the above-mentioned sample pretreatment equipment, the mounting connector is provided with a first insertion structure penetrated by the first mounting channel; and

[0031] The sealing plate is provided with a second insertion structure that is penetrated by the third installation channel and is inserted into the first insertion structure; when the first insertion structure and the second insertion structure are inserted into each other, the elastic seal can be squeezed.

[0032] In the preferred embodiment of the above-mentioned sample pretreatment equipment, the first insertion structure comprises a first connecting sleeve and a first clamping member, and the second insertion member comprises a second connecting sleeve; the first connecting sleeve is sleeved over the second connecting sleeve, and the first clamping member is disposed at the end of the first connecting sleeve away from the sealing plate and connected to the mounting joint; the elastic sealing member is located between the first clamping member and the second connecting sleeve; or

[0033] The first plug-in structure is a first connecting sleeve, and the second plug-in component is a second connecting sleeve and a second clamping component; the second connecting sleeve is sleeved outside the first connecting sleeve, and the second clamping component is disposed at the end of the second connecting sleeve away from the mounting joint and is connected to the sealing plate; the elastic sealing component is disposed between the second clamping component and the first connecting sleeve.

[0034] In the preferred embodiment of the above-mentioned sample pretreatment equipment, the sealing plate includes a first pressure plate and a connecting plate. The connecting plate is disposed on the side of the first pressure plate near the mounting joint, and is provided with the third mounting channel and a first through hole that allows the movable end of the movable component to pass through, so that the movable end of the movable component is connected to the first pressure plate. The third mounting channel penetrates the first pressure plate, and the elastic seal is located on the side of the connecting plate near the mounting joint.

[0035] In the preferred embodiment of the above-mentioned sample pretreatment equipment, when the sealing plate is provided with a second insertion structure, the second insertion structure is provided on the first pressure plate or the connecting plate.

[0036] In the preferred embodiment of the above-mentioned sample pretreatment equipment, the sealing assembly further includes a skeleton oil seal; and

[0037] The inner wall of the sealing plate is provided with an assembly groove, and the skeleton oil seal is installed in the assembly groove.

[0038] In a preferred embodiment of the above-mentioned sample pretreatment equipment, the mounting mechanism further includes a pull rod that connects the movable component to the sealing component.

[0039] In the preferred embodiment of the above-mentioned sample pretreatment equipment, the sealing component is an elastic seal, and the end of the first installation channel near the heating furnace is threadedly connected to the movable component. During the threaded connection process, the movable component can push the elastic seal to press and seal the sample tube.

[0040] In a preferred embodiment of the above-mentioned sample pretreatment equipment, the mounting joint is provided with a third connecting structure penetrated by the first mounting channel; and

[0041] The active component includes a second pressure plate and a fourth connecting structure. The second pressure plate is provided with a third mounting channel communicating with the first mounting channel. The second pressure plate is provided with a second connecting structure. When the fourth connecting structure is threadedly connected to the third connecting structure, it can compress the elastic seal, thereby pressing and sealing the sample tube.

[0042] In the preferred embodiment of the above-mentioned sample pretreatment equipment, the third connecting structure is a third connecting sleeve and a third clamping member, and the fourth connecting structure is a fourth connecting sleeve and a fifth connecting sleeve located inside the fourth connecting sleeve; the third connecting sleeve is disposed between the fourth connecting sleeve and the fifth connecting sleeve, and is threadedly connected to the fourth connecting sleeve; the third clamping member is disposed at the end of the third connecting sleeve away from the second pressure plate, and is connected to the mounting joint; the elastic sealing member is disposed inside the third connecting sleeve and located between the third clamping member and the fifth connecting sleeve; or

[0043] The third connecting structure is a third connecting sleeve, and the fourth connecting structure is a fourth connecting sleeve and a fourth clamping member; the fourth connecting sleeve is connected to the second pressure plate through the fourth clamping member, and the fourth connecting sleeve is located outside the third connecting sleeve and threadedly connected to the third connecting sleeve; the elastic sealing member is disposed inside the fourth connecting sleeve and is located between the fourth clamping member and the third connecting sleeve; or

[0044] The third connecting structure is a third connecting sleeve and a third clamping member, and the fourth connecting structure is a fourth connecting sleeve; the third connecting sleeve is disposed on the outside of the fourth connecting sleeve and is threadedly connected to the fourth connecting sleeve; the third clamping member is disposed at the end of the third connecting sleeve away from the sealing assembly and is connected to the mounting joint; the elastic sealing member (332) is disposed inside the third connecting sleeve (2124) and is located between the third clamping member and the fourth connecting sleeve.

[0045] In a preferred embodiment of the above-mentioned sample pretreatment device, the first installation channel includes a first channel and a second channel that are interconnected. The first channel is close to the sealing assembly and its inner diameter is larger than that of the second channel, for inserting the sample tube. The inner diameter of the second channel is smaller than that of the sample tube and is used to connect with the inlet / outlet gas mechanism. The difference in inner diameter between the first channel and the second channel forms a limiting structure that restricts the insertion depth of the sample tube. Or

[0046] The first installation channel is provided with a third limiting member for limiting the insertion depth of the sample tube.

[0047] In the preferred embodiment of the above-mentioned sample pretreatment equipment, the mounting joint includes a mounting block and a connector, wherein the connector is disposed on the side of the mounting block near the sealing assembly and the end of the mounting block away from the mounting head is provided with the first mounting channel.

[0048] In the preferred embodiment of the above-mentioned sample pretreatment equipment, the number of the first installation channels is at least one.

[0049] In a preferred embodiment of the above-mentioned sample pretreatment equipment, the heating furnace includes a body and a heating component disposed within the body. The heating component has a heating channel formed inside and is configured to move closer to or further away from the mounting mechanism in a first direction under the action of the body.

[0050] In the preferred embodiment of the above-mentioned sample pretreatment equipment, the heating furnace further includes a cooling component and a baffle component. The cooling component is disposed within the body and on the side of the heating component away from the mounting mechanism, and the outlet of the cooling component is connected to the heating channel. The baffle component is disposed in the heating channel near the cooling component and is configured to disconnect or connect the heating channel with the outlet.

[0051] In a preferred embodiment of the above-mentioned sample pretreatment equipment, the baffle assembly includes a baffle and a connecting shaft, the connecting shaft being disposed in the heating channel near the cooling component; the baffle is disposed on the connecting shaft and is configured to allow the heating channel to be disconnected from or connected to the outlet.

[0052] In the preferred embodiment of the above-mentioned sample pretreatment equipment, the connecting shaft is arranged along the first direction so that the baffle can move between the third position and the fourth position along the first direction;

[0053] When the baffle is in the third position, it can disconnect the heating channel and the outlet; when the baffle is in the fourth position, it can connect the heating channel and the outlet.

[0054] In a preferred embodiment of the above-mentioned sample pretreatment equipment, the heating channel includes a third channel and a fourth channel that are interconnected. The connecting shaft is disposed within either the third channel or the fourth channel. The third channel is located away from the cooling component, and the fourth channel is located close to the cooling component.

[0055] The inner diameter of the fourth channel is smaller than the inner diameter of the third channel and less than or equal to the outer diameter of the baffle; when the baffle is in the third position, the baffle abuts against the connection between the third channel and the fourth channel; or the baffle is in contact with the inner wall of the fourth channel; when the baffle is in the fourth position, the baffle is located inside the third channel; or

[0056] The inner diameter of the fourth channel gradually decreases from the heating component to the cooling component, and its minimum inner diameter is smaller than the inner diameter of the baffle. When the baffle is in the third position, the baffle is in contact with the inner wall of the fourth channel, thereby disconnecting the connection between the heating channel and the outlet; or the baffle is in contact with the inner wall of the fourth channel. When the baffle is in the fourth position, the baffle is located in the third channel or the fourth channel, thereby connecting the heating channel and the outlet.

[0057] In a preferred embodiment of the above-mentioned sample pretreatment equipment, the baffle assembly further includes a bracket, which is disposed in the heating channel near the cooling assembly; and

[0058] The connecting shaft is fixed to the bracket and the baffle is movably disposed thereon; or, the bracket is provided with a second through hole extending along the first direction, the connecting shaft is movably inserted into the second through hole and the baffle is fixed thereon.

[0059] In the preferred embodiment of the above-mentioned sample pretreatment equipment, the connecting shaft is arranged along the radial direction of the heating channel, and the baffle is rotatably arranged on the connecting shaft and is configured to rotate between the fifth position and the sixth position.

[0060] When the baffle is in the fifth position, the baffle is in contact with the inner wall of the heating channel; when the baffle is in the sixth position, the angle between the baffle and the radial direction of the heating channel is greater than 0°.

[0061] In a preferred embodiment of the above-mentioned sample pretreatment equipment, the heating component includes a heat-conducting block and a heating element. The heat-conducting block is disposed within the main body and a heating channel is formed thereon. The heating element is disposed on the outer wall of the heat-conducting block or inside the heat-conducting block.

[0062] In the preferred embodiment of the above-mentioned sample pretreatment equipment, the heating component further includes a first heat-insulating member disposed within the main body. The first heat-insulating member has an annular structure and is disposed between the main body and the heat-conducting block.

[0063] In the preferred embodiment of the above-mentioned sample pretreatment equipment, the heating component further includes a second heat insulation component disposed within the main body. The second heat insulation component is disposed on the side of the heat-conducting block near the mounting mechanism, and has a fifth channel communicating with the heating channel.

[0064] In the preferred embodiment of the above-mentioned sample pretreatment equipment, the fifth channel is provided with a heat insulation sheet; and

[0065] The heat insulation sheet is provided with a third through hole, and the inner periphery of the third through hole is provided with at least one penetrating slit along the radial direction; or, the heat insulation sheet is provided with at least one penetrating slit.

[0066] In the preferred embodiment of the above-mentioned sample pretreatment equipment, the heat insulation sheet is made of an elastic material.

[0067] In the preferred embodiment of the above-mentioned sample pretreatment equipment, the heating component further includes a third heat insulation component disposed within the main body. The third heat insulation component is disposed on the side of the heat-conducting block away from the mounting mechanism, and has a sixth channel communicating with the heating channel thereon.

[0068] In the preferred embodiment of the above-mentioned sample pretreatment equipment, the heating furnace further includes a temperature measuring element, which is disposed on the heat-conducting block.

[0069] In the preferred embodiment of the above-mentioned sample pretreatment equipment, the cooling component is a fan cooling component or an air compressor cooling component.

[0070] In a preferred embodiment of the above-mentioned sample pretreatment equipment, the sample pretreatment machine further includes a drive mechanism; and

[0071] The drive mechanism is disposed in the body of the machine, and the body is provided with a slide rail extending in a first direction. The output end of the drive mechanism passes through the slide rail and is connected to the heating furnace or the mounting mechanism, so that the heating furnace and the mounting mechanism can move closer or further away; or the drive mechanism is disposed in the body of the machine, and its output end is connected to the heating furnace or the mounting mechanism, so that the heating furnace and the mounting mechanism can move closer or further away.

[0072] This application also provides an adsorption apparatus, which includes the sample pretreatment equipment described in any of the above preferred technical solutions.

[0073] Those skilled in the art will understand that the sample pretreatment equipment of this application, by connecting one end of the first mounting channel on the mounting mechanism to the gas inlet / outlet mechanism and the other end for mounting the sample tube neck, and by coaxially arranging the first mounting channel with the heating channel on the heating furnace, allows the bottom of the sample tube installed in the first mounting channel to be inserted into the corresponding heating channel for pretreatment when the heating furnace is close to the mounting mechanism, thereby improving the test efficiency and solving the problem in the prior art that the test efficiency is affected by the need to manually load the heating furnace and manually connect the gas inlet / outlet mechanism.

[0074] Furthermore, by mounting the movable component on the mounting joint and connecting it to the sealing component, the sealing component can move between a first position and a second position under the drive of the movable component. When the sealing component is in the first position, it works in conjunction with the mounting joint to compress and seal the sample tube inserted into the mounting joint, ensuring the airtightness of the gas inside the sample tube. When the sealing component moves to the second position, it disengages from the mounting joint, facilitating the installation or removal of the sample tube. In addition, the sample tube installation mechanism of this application eliminates the need for manual sealing of the sample tube; instead, the sealing installation of the sample tube is completed through the movable component, significantly improving operational convenience and experimental efficiency.

[0075] Furthermore, by opening a second mounting channel on the mounting joint for the rod to pass through, and connecting the two ends of the rod to the driving assembly and the sealing assembly respectively, the rod can move along the first direction under the drive of the driving assembly, thereby driving the sealing assembly to move between the first position and the second position.

[0076] Furthermore, by setting a first connecting structure on the quick-connect insert and a second connecting structure that cooperates with the first connecting structure on the rod, the quick-connect insert can drive the rod to move along the first direction when it moves under the drive of the driving component, thereby driving the sealing assembly to move between the first position and the second position.

[0077] Furthermore, by configuring the first connecting structure as an adjustment hole and a transition zone, and the second connecting structure as a guide on the rod, the adjustment hole allows the rod to pass through, enabling the quick-connect insert to move relative to the rod along the length of the adjustment hole. The transition zone corresponds to the position of the adjustment hole and abuts against it. Due to the gradual dimension design of the transition zone along the first direction, the movement of the quick-connect insert is converted into the movement of the rod along the first direction through the guide, thereby realizing the movement of the sealing assembly between the first and second positions. In addition, by configuring the first connecting structure as a transition zone with a gradual dimension along the first direction, and the second connecting structure as a connecting hole, when the quick-connect insert passes through the connecting hole, the gradual characteristic of the transition zone works in conjunction with the connecting hole to convert the movement of the quick-connect insert into the linear displacement of the rod, thereby driving the sealing assembly to move between the first and second positions.

[0078] Furthermore, by providing a guide channel on the quick-connect guide, the quick-connect insert can move along the guide channel, thereby enabling the sealing assembly to move between the first position and the second position.

[0079] Furthermore, by inserting a portion of the first connecting rod into the second connecting rod and providing an elastic element on the first connecting rod located within the second connecting rod, or by inserting a portion of the second connecting rod into the first connecting rod and providing an elastic element on the second connecting rod located within the first connecting rod; the two ends of the elastic element are respectively connected to a first limiting element on the first connecting rod and a second limiting element on the second connecting rod, such that when the first connecting rod moves away from the sealing assembly under the drive of the driving assembly, the elastic element undergoes elastic deformation, and the rebound force of the elastic element drives the second connecting rod to move the sealing assembly from the second position to the first position; when the first connecting rod moves towards the sealing assembly under the drive of the driving assembly, the elastic element undergoes elastic deformation again, and the rebound force of the elastic element drives the second connecting rod to move the sealing assembly from the second position to the first position.

[0080] Furthermore, by movably setting the first limiting member on the first connecting rod and / or movably setting the second limiting member on the second connecting rod, the initial deformation of the elastic member can be adjusted, which can prevent the spring from being over-compressed or stretched, reduce fatigue damage, and effectively adjust the impact force between the sealing assembly and the mounting joint.

[0081] Furthermore, by setting the first installation channel as an interconnected first channel and second channel, with an inner diameter difference between the first channel and the second channel, this inner diameter difference can serve as a limiting structure to restrict the insertion depth of the sample tube. This can both avoid the problem of the sample tube being inserted too deeply or too shallow due to manual operation and ensure the consistency of the positioning of sample tubes from different batches.

[0082] Furthermore, by setting the sealing assembly as a sealing plate and an elastic seal, and connecting the sealing plate to the movable assembly, when the movable assembly drives the sealing plate to move from the second position to the first position, the elastic seal sleeved on the sample tube can be squeezed under the cooperation of the sealing plate and the mounting joint, thereby achieving a tight seal on the sample tube.

[0083] Furthermore, by setting a first insertion structure on the mounting connector and a second insertion structure on the sealing plate, when the first insertion structure and the second insertion structure are inserted and engaged, the elastic sealing element can be squeezed to achieve a tight seal on the sample tube.

[0084] Furthermore, by configuring the first insertion structure as a first connecting sleeve and a first clamping member, and the second insertion structure as a second connecting sleeve that can be inserted into the first connecting sleeve, with the elastic sealing member located between the first clamping member and the second connecting sleeve, when the sealing plate moves from the second position to the first position, the first clamping member and the second connecting sleeve cooperate to compress the elastic sealing member, thereby achieving a seal on the sample tube. Additionally, by configuring the first insertion structure as a first connecting sleeve, and the second insertion structure as a second connecting sleeve and a second clamping member that can be fitted over the first connecting sleeve, with the elastic sealing member located between the second clamping member and the first connecting sleeve, when the sealing plate moves from the second position to the first position, the second clamping member and the first connecting sleeve cooperate to compress the elastic sealing member, thereby achieving a seal on the sample tube.

[0085] Furthermore, by providing a skeleton oil seal on the inner wall of the sealing plate, the skeleton oil seal can fit tightly against the surface of the sample tube to form a radial seal, thereby ensuring that the pressure plate is in the first position and the sample tube is inserted into the first installation channel to prevent the sample tube from falling off.

[0086] Furthermore, by setting a cooling component on one side of the heating component and a baffle component in the heating channel of the heating component, the baffle component can control the connection between the heating channel and the outlet of the cooling component. After the heating furnace has finished heating the sample in the sample tube, the baffle component can connect the heating channel and the outlet of the cooling component, thereby enabling the cooling airflow generated by the cooling component to quickly cool the sample tube, improving the cooling efficiency. This not only avoids the safety hazards during the sample tube transfer process, but also solves the problem that the natural cooling method is time-consuming and affects the experimental efficiency.

[0087] Furthermore, by setting a connecting shaft within the heating channel and placing a baffle on this connecting shaft, the baffle can move between a third and a fourth position along the axial direction of the heating channel under the action of the connecting shaft. When the baffle is in the third position, the connection between the heating channel and the outlet is disconnected, ensuring temperature uniformity within the heating channel. When the baffle is in the fourth position, the heating channel and the outlet of the cooling component are connected, allowing the cooling airflow generated by the cooling component to rapidly cool the sample tube, improving cooling efficiency.

[0088] Furthermore, by setting the inner diameter of the second channel to be smaller than the inner diameter of the first channel and smaller than or equal to the outer diameter of the baffle, the baffle can be made to abut against the connection between the first and second channels or to fit against the inner wall of the second channel, thereby disconnecting the heating channel from the outlet and ensuring the uniformity of the heating channel temperature.

[0089] Furthermore, by gradually reducing the inner diameter of the second channel from the heating component to the cooling component, and by making its minimum inner diameter smaller than that of the baffle, the baffle can be made to fit against the inner wall of the second channel, thereby disconnecting the connection between the heating channel and the outlet and ensuring the temperature uniformity of the heating channel.

[0090] Furthermore, by extending and fixing the connecting shaft along the axial direction of the heating channel, the baffle can move between a first position and a second position along the axial direction of the connecting shaft, thereby disconnecting or connecting the outlet of the heating channel and the cooling component. Additionally, by extending the second through hole on the bracket along the axial direction of the heating channel and movably inserting the connecting shaft with the baffle fixed into the second through hole, the baffle can move between a third position and a fourth position along the axial direction of the second through hole under the action of the connecting shaft, thereby disconnecting or connecting the outlet of the heating channel and the cooling component.

[0091] Furthermore, by arranging the connecting shaft radially within the heating channel and rotatably mounting the baffle on the connecting shaft, the baffle can rotate between a fifth and a sixth position. In the fifth position, the baffle adheres to the inner wall of the heating channel, disconnecting the heating channel from the outlet and ensuring temperature uniformity within the heating channel. In the sixth position, the angle between the baffle and the radial direction of the heating channel is greater than 0°, connecting the heating channel to the outlet of the cooling component. This allows the cooling airflow generated by the cooling component to rapidly cool the sample tube, improving cooling efficiency.

[0092] Furthermore, by covering the heat conductor with a first insulation element, the heat insulation performance of the heating component can be effectively enhanced, reducing the interference of the external environment on the heating process, thereby ensuring that the sample inside the sample tube is heated uniformly.

[0093] Furthermore, by setting a second insulation component on the side of the heat-conducting block away from the cooling component, and setting a fifth channel on the second insulation component that communicates with the heating channel, the interference of the external environment on the sample heating process can be reduced, and the sample tube can be installed and operated more easily.

[0094] Furthermore, by installing a heat insulation sheet in the fifth channel and setting at least one through-slit on the heat insulation sheet, the installation of the sample tube can be ensured, and the interference of the external environment on the sample heating process can be further reduced.

[0095] Furthermore, by setting a third insulation component between the heat-conducting block and the cooling component, and setting a sixth channel on the third insulation component that is connected to the heating channel, it is possible to ensure that the sample in the sample tube is heated evenly when the heating channel is disconnected from the outlet of the cooling component, and at the same time, when the heating channel is connected to the outlet of the cooling component, the cooling airflow generated by the cooling component can quickly cool the sample tube, thereby improving the cooling efficiency.

[0096] Furthermore, by connecting the drive mechanism to the heating furnace or the mounting mechanism, the two can move closer or further apart under the action of the drive mechanism. When the heating furnace is close to the mounting mechanism, sample pretreatment can be performed; when the heating furnace is far from the mounting mechanism, sample installation and replacement are facilitated. Attached Figure Description

[0097] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0098] Figure 1 This is a structural diagram of the sample pretreatment equipment used in this application;

[0099] Figure 2 This is a cross-sectional view of the sample pretreatment equipment used in this application;

[0100] Figure 3 This is a structural diagram of the first embodiment of the installation mechanism;

[0101] Figure 4 yes Figure 3 The main view;

[0102] Figure 5 yes Figure 4 Cross-sectional view at point AA;

[0103] Figure 6 yes Figure 4 Cross-sectional view at point BB;

[0104] Figure 7 yes Figure 3 Cross-sectional view of the joint and sealing assembly installed in the middle;

[0105] Figure 8 yes Figure 3 Cross-sectional view of another embodiment of the mounting joint and sealing assembly;

[0106] Figure 9 yes Figure 3 Structural diagrams of the active and sealing components;

[0107] Figure 10 yes Figure 3 A schematic diagram of the quick-connect lifting assembly;

[0108] Figure 11 yes Figure 3 Structure diagram of the Zhongkuai plug-in;

[0109] Figure 12 This is a structural diagram of the second embodiment of the installation mechanism;

[0110] Figure 13 yes Figure 12 Cross-sectional view;

[0111] Figure 14 This is a schematic diagram of the heating furnace.

[0112] Figure 15 yes Figure 14 Top view;

[0113] Figure 16 This is a partial cross-sectional view of the heating furnace in this application.

[0114] Figure 17 This is a cross-sectional view of the heating furnace of this application;

[0115] Figure 18 yes Figure 17 Enlarged view of point A in the middle;

[0116] Figure 19 This is a cross-sectional view of the heating furnace of this application from another angle.

[0117] List of reference numerals in the attached diagram:

[0118] 1. Body; 11. Accommodation space; 12. Slide rail; 2. Mounting mechanism; 21. Mounting connector; 211. Mounting block; 2111. Second mounting channel; 2112. Air passage; 2113. Sleeve; 212. Connector; 2121. First mounting channel; 21211. First channel; 21212. Second channel; 2122. First connecting sleeve; 2123. First clamping element; 2124. Third connecting sleeve; 2125. Third clamping element; 22. Moving component; 221. Drive component; 2211. Quick insert ; 22111, Adjustment hole; 22112, Transition zone; 22113, First zone; 22114, Second zone; 2212, Cylinder; 2213, Quick-connect guide; 22131, Guide channel; 22132, Connecting port; 222, Quick-connect lifting assembly; 2221, Rod; 22211, First connecting rod; 222111, First limiting member; 22212, Second connecting rod; 222121, Second limiting member; 2222, Spring; 2223, Guide; 223, Second pressure plate; 224, Fourth 225. Fifth connecting sleeve; 23. Sealing assembly; 231. Sealing plate; 2311. First pressure plate; 23111. Slot; 2312. Connecting plate; 23121. Second connecting sleeve; 23122. Second clamping element; 232. Elastic sealing element; 233. Skeleton oil seal; 24. Pull rod; 241. Locking block; 25. Locking element; 26. Fourth limiting element; 3. Heating furnace; 31. Heating assembly; 311. First support plate; 312. Heat conducting block; 3121. Heating channel; 31211. Third channel 31212, Fourth Channel; 313, Heating Wire; 314, Temperature Measuring Component; 315, First Insulation Component; 316, Second Insulation Component; 3161, Fifth Channel; 317, Third Insulation Component; 3171, Sixth Channel; 318, Heat Insulation Sheet; 3181, Third Through Hole; 3182, Penetrating Slit; 32, Fan Cooling Assembly; 321, Second Support Plate; 33, Baffle Assembly; 331, Baffle; 332, Connecting Shaft; 333, Bracket; 34, Main Body; 4, Air Inlet / Outlet Mechanism; 5, Drive Mechanism; 6, Sample Tube. Detailed Implementation

[0119] Preferred embodiments of this application are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this application and are not intended to limit the scope of protection of this application. It should be noted that in the description of this application, terms such as "upper," "lower," "inner," "bottom," and "end," indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, it should not be construed as a limitation of this application.

[0120] Furthermore, it should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "set up," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0121] Combination Figure 1-19 The sample pretreatment equipment of this application is described.

[0122] like Figure 1-2 As shown in Figures 6 and 16, the sample pretreatment equipment includes a body 1, a mounting mechanism 2, a heating furnace 3, a drive mechanism 5, and an inlet / outlet gas mechanism 4. The number of mounting mechanisms 2 and heating furnaces 3 is the same, two in each case, with each mounting mechanism 2 corresponding to a heating furnace 3. The top of the body 1 is recessed inward to form a mounting space 11, within which the heating furnace 3 is located. Both the mounting mechanism 2 and the inlet / outlet gas mechanism 4 are located within the body 1. The mounting mechanism 2 has a first mounting channel 2121 extending in a first direction. One end of the first mounting channel 2121 penetrates the body 1 for mounting the neck of the sample tube 6, and the other end connects to the inlet / outlet gas mechanism 4, facilitating the aspiration and degassing of the sample within the sample tube 6. The heating furnace 3 is provided with a heating channel 3121. The heating channel 3121 is coaxially arranged with the first mounting channel 2121 on the corresponding mounting mechanism 2, so that when the neck of the sample tube 6 is installed in the first mounting channel 2121, the bottom of the same sample tube 6 can be inserted into the corresponding heating channel 3121, thereby realizing the pretreatment of the sample.

[0123] It should be noted that the first direction refers to Figure 1-6 The Z-direction shown in 1, 9, 12-13, and 16-17 includes both the positive and negative directions indicated by the arrows. The second direction refers to... Figure 3 , 5 -6 and 9 indicate the Y-direction, including both the positive and negative directions indicated by the arrows. The third direction refers to... Figure 3-4 The X direction shown in Figure 9 includes both the positive and negative directions indicated by the arrow.

[0124] In the exemplary embodiments, the location of the installation mechanism 2 is not fixed and can be adjusted by those skilled in the art as needed. For example, the installation mechanism 2 can also be installed in the installation space 11 via a connecting bracket. When the installation mechanism 2 is installed in the installation space 11, the ends of the air inlet and outlet pipes of the air inlet and outlet mechanism 4 can extend out of the body 1 and communicate with the first installation channel 2121.

[0125] In the exemplary embodiments, the number of mounting mechanisms 2 and heating furnaces 3 is not fixed and can be adjusted by those skilled in the art according to the configuration requirements. For example, when there is one mounting mechanism 2, there is also one heating furnace 3. When there are three mounting mechanisms 2, there are also three heating furnaces 3.

[0126] See next Figure 1-2 The drive mechanism 5 is located inside the body 1, and a slide 12 extending in the first direction is provided on the body 1 located in the installation space 11. The output end of the drive mechanism 5 passes through the slide 12 and is connected to the heating furnace 3, so that the heating furnace 3 can move in the first direction under the action of the drive mechanism 5, thereby being able to approach or move away from the installation mechanism 2.

[0127] In the exemplary embodiment, the location of the drive mechanism 5 is not fixed, and those skilled in the art can select it according to the setting requirements. The drive mechanism 5 is set in the installation space 11 and on the body 1, and its output end is connected to the heating furnace 3, so that the heating furnace 3 and the installation mechanism 2 can be close to or far away from each other.

[0128] In the exemplary embodiments, this application does not limit the specific type of the drive mechanism 5, as long as it can drive the heating furnace 3 or the mounting mechanism 2 to move. For example, the drive mechanism 5 can be an electric telescopic mechanism.

[0129] In the exemplary embodiments, the components connected to the drive mechanism 5 are not fixed, and those skilled in the art can adjust them according to specific application scenarios. For example, the drive mechanism 5 can also drive the mounting mechanism 2 to move, so that the mounting mechanism 2 moves closer to or away from the heating furnace 3. Specifically, the drive mechanism 5 is disposed inside the body 1, and the body 1 is provided with a slide rail 12 extending along the first direction. The output end of the drive mechanism 5 passes through the slide rail 12 and is connected to the mounting mechanism 2, so that the drive mechanism 5 can drive the mounting mechanism 2 to move closer to or away from the heating furnace 3; or the drive mechanism 5 is disposed on the body 1 of the mounting space 11, and its output end is connected to the mounting mechanism 2, so that the drive mechanism 5 can drive the mounting mechanism 2 to move closer to or away from the heating furnace 3.

[0130] See next Figure 1-11The installation mechanism 2 includes a sealing component 23, an installation joint 21, and a movable component 22. The installation joint 21 is located inside the machine body 1 and has a first installation channel 2121 that penetrates the machine body 1. The movable component 22 is located in the installation space and is movably mounted on the installation joint 21. When the movable component 22 moves relative to the installation joint 21, it pushes the sealing component 23 to press and seal the sample tube 6. After the sample tube 6 is pressed and sealed, the driving mechanism drives the heating furnace 3 to approach the installation mechanism 2, so that the bottom of the sample tube 6 can be inserted into the heating furnace 3. This allows for the aspiration and degassing of the sample in the sample tube 6 under high temperature conditions, thereby improving the sample pretreatment effect.

[0131] It should be noted that the sample tube 6 consists of a neck and a bottom. The sample is added through the opening of the neck and then contained in the bottom. The neck is mounted on the mounting mechanism 2, allowing the gas inlet / outlet mechanism 4 to communicate with the sample tube 6 via the mounting mechanism 2, facilitating the gas intake and degassing operations of the sample. The bottom is mounted on the heating furnace 3, facilitating the heating treatment of the sample inside the bottom, thereby improving the sample pretreatment effect.

[0132] like Figure 3-11 As shown, the mounting connector 21 includes a mounting block 211 and four connectors 212. The mounting block 211 is located inside the body 1 and is disposed on the side wall of the body 1 corresponding to the mounting space 11. The mounting block 211 is provided with a gas passage 2112 and a second mounting channel 2111 extending along a first direction. The second mounting channel 2111 penetrates the body 1 and is provided with a connecting cylinder 2113 inside it. The four connectors 212 all extend along the first direction and are all disposed on the side of the mounting block 211 near the heating furnace 3. One end of each connector 212 along the first direction is disposed on the mounting block 211, and the other end extends through the body 1 into the mounting space. Each connector 212 has a first mounting channel 2121 along the first direction that communicates with the gas passage 2112. The gas passage 2112 is connected to the gas inlet / outlet mechanism 4. The end of the first mounting channel 2121 near the heating furnace 3 is used to insert the neck of the sample tube 6, so that the gas inlet / outlet mechanism 4 can perform degassing and adsorption operations on the sample in the sample tube 6. In addition, by setting four connectors 212, four sample tubes 6 can be inserted into the mounting connector 21 at the same time, thereby enabling degassing and adsorption operations on the samples in the four sample tubes 6 simultaneously, thus improving the experimental efficiency.

[0133] In exemplary embodiments, this application does not limit the connection method between the mounting block 211 and the connector 212, as long as the connector 212 can be disposed on the mounting block 211. For example, the connector 212 is integrally formed with the mounting block 211, or the connector 212 is detachably disposed on the mounting block 211. Wherein, when the connector 212 is detachably mounted on the mounting head, a fourth limiting member 26 can be provided on the portion of the connector 212 located in the mounting space 11, such as... Figure 5 As shown, the fourth limiting member 26 is provided with the same number of limiting holes as the connectors 212, so that these connectors 212 are limited within the limiting plate, thereby improving the stability of these connectors 212.

[0134] In exemplary embodiments, the number of connectors 212 is not fixed and can be adjusted as needed by those skilled in the art. For example, the number of connectors 212 can be one, two, three, or other numbers. Furthermore, in other preferred embodiments, the number of connectors 212 is not mandatory and can be selected as needed by those skilled in the art. In the absence of connectors 212, a first mounting channel 2121 that penetrates the body 1 can be directly provided on the mounting block 211, such that one end of the first mounting channel 2121 is used to insert the sample tube 6, and the other end is connected to the gas passage 2112.

[0135] In other preferred embodiments, the gas passage 2112 is not mandatory, and those skilled in the art can choose it as needed. Without the gas passage 2112, the first mounting channel 2121 is directly connected to the air inlet / outlet mechanism 4.

[0136] See next Figure 6-8 The first installation channel 2121 includes a first channel 21211 and a second channel 21212 that are interconnected. The first channel 21211 is close to the sealing assembly 23 and its inner diameter is larger than that of the second channel 21212, and is used to insert the sample tube 6. The inner diameter of the second channel 21212 is smaller than that of the sample tube 6 and is used to communicate with the gas passage 2112. The difference in inner diameter between the first channel 21211 and the second channel 21212 forms a limiting structure that restricts the insertion depth of the sample tube 6, so that when the sample tube 6 is inserted into the first channel 21211, the opening of the sample tube 6 can abut against the limiting structure, thereby limiting the insertion depth of the sample tube 6.

[0137] In the exemplary embodiments, the method for limiting the insertion depth of the sample tube 6 is not fixed and can be adjusted as needed by those skilled in the art. For example, if the first installation channel 2121 is a channel of equal diameter, the insertion depth of the sample tube 6 can also be limited by providing a third limiting member in the first installation channel 2121, wherein the third limiting member can be an annular limiting plate.

[0138] There are two ways in which the sealing assembly 23 presses and seals the sample tube 6: one is an automatic pressing and sealing method, and the other is a manual pressing and sealing method. The two pressing and sealing methods of the sample tube 6 will be described next.

[0139] See Figure 3-11The method of automatically pressing and sealing the sample tube 6 in this application is described.

[0140] See next Figure 3-5 The movable component 22 includes a drive component 221 and a quick-connect lifting component 222. The drive component 221 is disposed within the body 1 and on the side of the mounting block 211 furthest from the sample tube 6. The quick-connect lifting component 222 includes a rod 2221 and an elastic element. The rod 2221 is inserted into the connecting cylinder, with one end extending out of the connecting cylinder along a first direction and connected to the drive component 221. The other end passes through the connecting cylinder 2113 and the body 1 and connects to the sealing component 23, allowing the sealing component 23 to move along the first direction between a first position and a second position under the action of the drive component 221 and the rod 2221.

[0141] In the exemplary embodiment, the quick-connect lifting component 222 is not mandatory, and those skilled in the art can choose it as needed. Without the quick-connect lifting component, the movable component 22 or the drive component 221 can be designed as an electrically operated telescopic mechanism. The movable end of this mechanism passes through the body and connects to the sealing component 23, thus enabling the sealing component 23 to move along the first direction between the first and second positions.

[0142] See next Figure 3-5 9. The drive assembly 221 includes a quick-connect insert 2211, a drive component, and a quick-connect guide 2213. The drive component is a cylinder 2212. Both the quick-connect guide 2213 and the cylinder 2212 are connected to the mounting block 211 on the side away from the heating furnace 3 via connectors. A guide channel 22131 is formed inside the quick-connect guide 2213, which extends through both ends of the quick-connect guide 2213 in the second direction, allowing the quick-connect insert 2211 to be movably inserted into the guide channel 22131. Both ends of the quick-connect guide 2213 in the first direction are provided with a communication port 22132 communicating with the guide channel 22131. The communication port 22132 communicates with the second mounting channel 2111, allowing one end of the rod 2221 to pass through the communication port 22132 and extend into the guide channel 22131.

[0143] In the exemplary embodiments, the arrangement of the quick-connect guide 2213 in this application is not fixed, and those skilled in the art can adjust it according to the specific application scenario. For example, the quick-connect guide 2213 may be open at both ends along the first direction, or the quick-connect guide 2213 may be open at one end away from the sealing component 23, and the other end may be provided with a communication port 22132; or the quick-connect guide 2213 may not be provided with a through hole 3181 at the end away from the sealing component 23, that is, that side is a closed side.

[0144] In other preferred embodiments, the quick-connect guide 2213 is not mandatory, and those skilled in the art can choose to include it as needed. Without the quick-connect guide 2213, the quick-connect insert 2211 is movably disposed on the side of the mounting block 211 away from the sample tube 6. This application does not limit the manner in which the quick-connect insert 2211 is disposed on the side of the mounting block 211 away from the sample tube 6, as long as the quick-connect insert 2211 is movably disposed on the side of the mounting block 211 away from the sample tube 6. For example, the side of the mounting block 211 away from the sample tube 6 may extend along the second direction to the slide rail 12, and the quick-connect insert 2211 may be disposed within the slide rail 12 via a slider.

[0145] See next Figure 5 , 9 -11, the quick-connect insert 2211 is provided with a first connecting structure, and the end of the rod 2221 away from the sealing assembly 23 is provided with a second connecting structure. The first connecting structure consists of an adjustment hole 22111 and a transition area 22112. The adjustment hole 22111 is formed on the quick-connect insert 2211 along a first direction, and extends along a second direction, penetrating one end of the quick-connect insert 2211 in the second direction, making one end of the quick-connect insert 2211 in the second direction a notched end and the other end a closed end. The closed end is connected to the movable end of the cylinder 2212, and the notched end serves as an insertion end for insertion into the guide channel 22131, thereby allowing the quick-connect insert 2211 to reciprocate along the second direction within the guide channel 22131 under the action of the cylinder 2212. The adjustment hole 22111 is larger in the second direction than the rod 2221 in the second direction. Simultaneously, the adjustment hole 22111's dimension in the third direction matches the rod 2221's dimension, thus facilitating the quick-connect insert 2211's movement through the rod 2221 within the guide channel 22131 along the second direction. The transition zone 22112 is located on the side of the quick-connect insert 2211 away from the sealing assembly 23 and corresponds to the adjustment hole 22111. The transition zone 22112 is an inclined surface, and its dimension towards the side of the quick-connect insert 22111 closest to the sealing assembly 23 gradually increases from the notched end to the closed end. The second connection structure is a guide 2223 abutting against the transition zone 22112. The guide 2223 can move along the transition zone 22112 when the drive member moves the quick-connect insert 2211, thereby causing the sealing assembly 23 to move between the first and second positions.

[0146] It should be noted that the connecting port 22132 on the side of the quick-connect guide 2213 away from the connector can also extend the guide to the connecting port 22132 when the maximum dimension of the quick-connect insert 2211 on the side near the sealing assembly 23 in the transition zone 22112 is equal to the dimension of the guide channel 22131 in the first direction, ensuring that the guide can move along the transition zone. Where the connecting port 2132 is not provided on the side of the quick-connect guide 213 away from the connector, the dimension of the guide channel in the first direction only needs to be not less than the sum of the dimension of the guide in the first direction and the maximum dimension of the quick-connect insert in the first direction.

[0147] It should be noted that when assembling the quick-connect lifting assembly 222 and the drive assembly 221, the first end of the rod 2221 with the guide 2223 is first passed through the connecting port 22132 of the quick-connect guide 2213, so that it extends outside the quick-connect guide 2213. Then, under the action of the cylinder 2212, the quick-connect insert 2211 is pushed into the guide channel 22131. Then, the force applied to the rod 2221 is removed, so that the guide 2223 extends into the guide channel 22131 and abuts against the side of the quick-connect insert 2211 away from the sealing assembly 23.

[0148] In the exemplary embodiment, the structure of the adjustment hole 22111 is not fixed in this application, and those skilled in the art can adjust it as needed. For example, both ends of the adjustment hole 22111 along the second direction are closed ends.

[0149] In the exemplary embodiments, the configuration of the first and second connection structures is not fixed and can be adjusted as needed by those skilled in the art. For example, the first connection structure is a transition zone 22112, which is located on the side of the quick insert 2211 away from the sealing component 23, and its dimension from the side of the quick insert 211 near the sealing component 3 gradually changes along the length direction of the adjustment hole 22111; the second connection structure is a connection hole provided on the rod 2221 that allows the quick insert 2211 to pass through, and the inner wall of the connection hole away from the sealing component 23 abuts against the transition zone 22112, so that when the quick insert 2211 moves under the drive of the driving member, the rod 2221 moves along the transition zone 22112, thereby driving the sealing component 23 to move between the first and second positions.

[0150] In the exemplary embodiments, the specific configuration of the transition region 22112 is not fixed and can be adjusted as needed by those skilled in the art. For example, the transition region 22112 can also be a curved surface. And / or, the transition region 22112 can also gradually decrease in size from the notch end to the closed end.

[0151] See next Figure 5 and 9-11, the side of the quick-connect plug 2211 away from the mounting block 211 includes not only the transition area 22112, but also the first area 22113 and the second area 22114. The first area 22113, the transition area 22112, and the second area 22114 are arranged sequentially along the second direction, and the transition area 22112 is connected to the first area 22113 and the second area 22114 respectively. The first area 22113 is close to the notch end, and the second area 22114 is close to the closed end. The positions of the three areas correspond to the positions of the adjustment hole 22111. The first area 22113 and the second area 22114 are both planar, while the transition area 22112 is an inclined surface. Among them, the size of the first area 22113 in the first direction is smaller than the size of the second area 22114 in the first direction, so that the size of the transition area 22112 in the first direction gradually increases from the notch end to the closed end. The guide 2223 is located in the guide channel 22131. When the cylinder 2212 drives the quick insert 2211 to move, the guide 2223 can move along the side of the quick insert 2211 away from the mounting block 211 between the first zone 22113 and the second zone 22114. When the guide 2223 moves along the transition zone 22112, it can drive the sealing assembly 23 to move between the first position and the second position.

[0152] In the exemplary embodiments, the configuration of the quick-connect plug 2211 in this application is not fixed, and those skilled in the art can adjust it as needed. For example, the quick-connect plug 2211 may only have a transition area 22112, that is, the position corresponding to the adjustment hole 22111 may only have a transition area 22112, and the guide 2223 may only move along the transition area 22112 under the action of the cylinder 2212.

[0153] See next Figure 4-59. Rod 2221 includes a first connecting rod 22211 and a second connecting rod 22212. The second connecting rod 22212 is a sleeve structure inserted into the connecting sleeve. Both ends of the second connecting rod 22212 extend out of the connecting sleeve, with one end connected to the sealing assembly 23 located outside the body 1, and the other end allowing the first connecting rod 22211 to be inserted therein. A portion of the first connecting rod 22211 is disposed within the second connecting rod 22212, and a first limiting member 222111 is provided at the end of this portion. The other portion extends out of the second connecting rod 22212, and a guide member 2223 is provided at the end away from the sealing assembly 23. The guide member 2223 is a guide rod. The first limiting member 222111 is an adjustable nut, which is threaded onto the first connecting rod 22211 and can move along the first connecting rod 22211 in a first direction. A second limiting member 222121 is provided at the end of the second connecting rod 22212 away from the sealing assembly 23. The second limiting member 222121 is a lock nut, which allows the first connecting rod 22211 to pass through while also being threaded to the end of the second connecting rod 22212. These two nuts also prevent the first connecting rod 22211 from coming out of the second connecting rod 22212. An elastic element, a spring 2222, is provided on the first connecting rod 22211 located inside the second connecting rod 22212. The two ends of the spring 2222 along the first direction are respectively connected to the lock nut and the adjustable nut. Since the adjustable nut can move along the length of the first connecting rod 22211, it can also adjust the initial compression of the spring 2222. When the first connecting rod 22211 moves away from the heating furnace 3 under the action of the quick-connect insert 2211 and the cylinder 2212, the spring 2222 is compressed. The rebound force of the elastic element causes the second connecting rod 22212 to move the sealing assembly 23 from the second position to the first position, thereby achieving a tight seal on the sample tube 6. Conversely, when the first connecting rod 22211 moves closer to the sealing assembly 23 under the action of the quick-connect insert 2211 and the cylinder 2212, the elastic element is stretched. The rebound force of the elastic element causes the second connecting rod 22212 to move the sealing assembly 23 from the first position back to the second position, disengaging the sealing assembly 23 from the mounting connector 21, thus facilitating the removal of the sample tube 6.

[0154] It should be noted that the difference between a lock nut and an adjustable nut is that the lock nut has a step formed on its inner wall, so it can only be threaded onto the end of the second connecting rod 22212 and cannot move as a whole along its length. Furthermore, the step of the lock nut is located within the cylindrical space of the second connecting rod 22212, thus allowing it to connect with the spring 2222. The adjustable nut, on the other hand, can move as a whole along the length of the first connecting rod 22211.

[0155] In the exemplary embodiments, the specific configuration of the first limiting member 222111 and the second limiting member 222121 is not fixed, and those skilled in the art can adjust it as needed. For example, the first limiting member 222111 can also be a lock nut, or a limiting plate fixed on the first connecting rod 22211; and / or, the second limiting member 222121 can also be a limiting plate fixed on the inner wall of the second connecting rod 22212, or threadedly connected to the inner wall of the second connecting rod 22212.

[0156] In the exemplary embodiments, the configuration of the first connecting rod 22211 and the second connecting rod 22212 is not fixed and can be adjusted by those skilled in the art according to specific application scenarios. For example, the first connecting rod 22211 may be a sleeve structure, with a portion of the second connecting rod 22212 disposed inside the first connecting rod 22212 and the other portion extending outside the second connecting rod 22212 and connected to the sealing assembly 23 located outside the body 1; an elastic element is provided on the second connecting rod 22212 located inside the first connecting rod 22211, and the two ends of the elastic element along the first direction respectively form an abutment fit with the first limiting member 222111 and the second limiting member 222121. In this case, the first limiting member 222111 may be an anti-loosening nut, which is threadedly connected to the end of the first connecting rod 22211 near the sealing assembly 23, and the second limiting member 222121 may be an adjustable nut, which is connected to the second connecting rod 22212 inside the first connecting rod.

[0157] In other exemplary embodiments, the provision of an elastic element is not mandatory, and those skilled in the art can select it as needed. Where an elastic element is not provided, the rod 2221 comprises only a first connecting rod 22211 and a second connecting rod 22212, and the first connecting rod 22211 and the second connecting rod 22212 are fixedly connected to form a rod 2221 of equal length.

[0158] See next Figure 3-9The sealing assembly 23 includes a sealing plate 231 and an elastic seal 232. The sealing plate 231 includes a first pressure plate 2311 and a connecting plate 2312. The connecting plate 2312 is located on the side of the first pressure plate 2311 near the mounting joint 21. The connecting plate 2312 has four third mounting channels and a first through hole. The four third mounting channels correspond one-to-one with and communicate with the first mounting channels 2121. Each third mounting channel passes through the first pressure plate 2311. The first through hole allows the end of the second connecting rod 22212 to pass through, connecting the second connecting rod 22212 to the first pressure plate 2311. The elastic seal 232 is a sealing ring located on the side of the connecting plate 2312 near the mounting joint 21. It can be fitted onto the sample tube 6, so that when the first pressure plate 2311 moves from the second position to the first position, the connecting plate 2312 cooperates with the mounting joint 21 to squeeze the sealing ring, thereby pressing and sealing the sample tube 6.

[0159] In the exemplary embodiments, the arrangement of the sealing plate 231 is not fixed and can be adjusted as needed by those skilled in the art. For example, the sealing plate 231 may also include only a pressure plate, through which the sealing ring is compressed by the first pressure plate 2311 cooperating with the mounting joint 21.

[0160] It should be noted that the number of third installation channels is not fixed in this application, and those skilled in the art can adjust it according to the number of first installation channels 2121. For example, when the number of first installation channels 2121 is 1, the number of third installation channels is also 1; when the number of first installation channels 2121 is 2, the number of third installation channels is also 2.

[0161] See next Figure 6-7 The connector 212 has a first insertion structure at one end of the installation space. The first insertion structure consists of a first connecting sleeve 2122 and a first clamping member 2123. The first clamping member 2123 extends along the connector 212 in a direction away from the axis of the connector 212, and the first connecting sleeve 2122 extends along the edge of the first clamping member 2123 towards the sealing assembly 23. The connecting plate 2312 has a second insertion structure on the side near the mounting connector 21. The second insertion structure consists of a second connecting sleeve 23121, which is penetrated by a third installation channel and extends along the connecting plate 2312 towards the mounting block 211. The first connecting sleeve 2122 is fitted over the second connecting sleeve 23121. The sealing ring is disposed inside the first connecting sleeve 2122 and between the first clamping member 2123 and the second connecting sleeve 23121, so that when the first pressure plate 2311 moves from the second position to the first position, the first clamping member 2123 and the second connecting sleeve 23121 can squeeze the sealing ring, thereby pressing and sealing the sample tube 6.

[0162] In the exemplary embodiments, the configuration of the first and second plug-in structures is not fixed and can be adjusted as needed by those skilled in the art. For example, see... Figure 8 The first insertion structure is a first connecting sleeve 2122, and the second insertion component is a second connecting sleeve 23121 and a second clamping component 23122. The second connecting sleeve 23121 extends along the connecting plate 2312 toward the connector 212. The inner diameter of the second connecting sleeve 23121 is larger than the inner diameter of the third mounting channel, so that the connecting plate 2312 between the inner wall of the second connecting sleeve 23121 and the third mounting channel serves as the second clamping component 23122. The second connecting sleeve 23121 is fitted over the first connecting sleeve 2122, and the sealing ring is disposed inside the second connecting sleeve 23121 and located between the second clamping component 23122 and the first connecting sleeve 2122. This allows the second clamping component 23122 and the first connecting sleeve 2122 to compress the sealing ring when the first pressure plate 2311 moves from the second position to the first position, thereby pressing and sealing the sample tube 6.

[0163] In the exemplary embodiments, the position of the second insertion structure is not fixed and can be adjusted as needed by those skilled in the art. For example, the second insertion structure can also be disposed on the first pressure plate 2311. When the second insertion structure is the second connecting sleeve 23121, the second connecting sleeve 23121 passes through the connecting plate 2312 and is inserted into the first connecting sleeve 2122, and squeezes the sealing ring in the first connecting sleeve 2122 to achieve a tight seal on the sample tube 6. When the second insertion structure is the second connecting sleeve 23121 and the second clamping member 23122, the second connecting sleeve 23121 extends along the connecting plate 2312 toward the joint 212. The inner diameter of the second connecting sleeve 23121 is larger than the inner diameter of the third mounting channel, so that the first pressure plate 2311 between the inner wall of the second connecting sleeve 23121 and the third mounting channel serves as the second clamping member 23122. The second connecting sleeve 23121 is sleeved outside the first connecting sleeve 2122, and the sealing ring is disposed inside the second connecting sleeve 23121 and located between the second clamping member 23122 and the first connecting sleeve 2122.

[0164] See next Figure 6-8 The sealing assembly 23 also includes four skeleton oil seals 233, each corresponding to one of the four first mounting channels 2121. The inner wall of each first mounting channel 2121, located at the connection between the sealing plate 231 and the connecting plate 2312, forms a recessed assembly groove. The skeleton oil seals 233 are installed within this groove. When the sample tube 6 passes through the skeleton oil seal 233 and is inserted into the first mounting channel 2121, the skeleton oil seal 233 can tightly adhere to the surface of the sample tube 6, forming a radial seal. This ensures that the first pressure plate 2311 is in the first position and prevents the sample tube 6 from falling out when inserted into the first mounting channel 2121.

[0165] The number of skeleton oil seals 233 is consistent with the number of first mounting channels 2121. That is, when there are 2 first mounting channels 2121, there are 2 skeleton oil seals 233. When there are 3 first mounting channels 2121, there are 3 skeleton oil seals.

[0166] In the exemplary embodiments, the location of the assembly slot is not fixed and can be adjusted as needed by those skilled in the art. For example, the assembly slot can also be independently located on the sealing plate 231 or the connecting plate 2312. It should be noted that when the sealing plate 231 only includes the first pressure plate 2311, the assembly slot is only located on the first pressure plate 2311.

[0167] See next Figure 5 and 9 The installation mechanism 2 also includes a pull rod 24, which is used to connect the movable component 22 and the sealing component 23. Specifically, a connecting channel is provided on the first pressure plate 2311, which passes through the connecting plate 2312. A slot 23111 is provided on the inner wall of the connecting channel of the first pressure plate 2311. A locking block 241 that engages with the slot 23111 is provided on the outer wall of one end of the pull rod 24. The other end of the pull rod 24 passes through the first connecting channel and abuts against the end of the second connecting rod 22212. The pull rod 24 and the second connecting rod 22212 are connected by a locking member 25.

[0168] In the exemplary embodiments, the connection method between the second connecting rod 22212 and the first pressure plate 2311 is not fixed and can be adjusted by those skilled in the art according to the setting requirements. For example, both the second connecting rod 22212 and the first pressure plate 2311 are provided with threaded holes, and the outer wall of the pull rod 24 is provided with external threads, so that the pull rod 24 is threadedly connected to the first connecting rod 22211 and the first pressure plate 2311, thereby realizing the connection between the second connecting rod 22212 and the first pressure plate 2311.

[0169] In an exemplary embodiment, this application does not limit the locking element 25, as long as it can connect the pull rod 24 and the second connecting rod 22212. For example, the locking element 25 can be a bolt.

[0170] Combination Figure 3-11 This describes the process of automatically sealing the sample tube 6 using the installation mechanism 2.

[0171] When installing sample tube 6, the first pressure plate 2311 is in the second position and the sealing ring is in the initial state. The sample tube 6 is passed through the third installation channel, the skeleton oil seal 233, and the sealing ring, and finally inserted into the first installation channel 2121 until the opening of the sample tube 6 abuts against the limiting structure formed by the difference in inner diameter between the first channel 21211 and the second channel 21212.

[0172] After sample tube 6 is installed, cylinder 2212 drives quick-connect insert 2211 to move from the notched end to the closed end within guide channel 22131. Since guide 2223 abuts against transition area 22112, the movement of quick-connect insert 2211 is converted by guide 2223 into movement of first connecting rod 22211 away from sealing assembly 23. At this time, elastic element is compressed, and the rebound force of elastic element causes second connecting rod 22212 to drive first pressure plate 2311 to move from second position to first position. During the movement, second connecting sleeve 23121 and first clamping element 2123 compress the sealing ring, achieving a tight seal on sample tube 6.

[0173] After the test, cylinder 2212 reverses the direction of the quick-connect insert 2211, moving it from the closed end to the notched end within the guide channel 22131. This movement of the quick-connect insert 2211 is then converted by guide 2223 into the movement of the first connecting rod 22211 towards the sealing assembly 23. At this time, the elastic element is stretched, and the rebound force of the elastic element causes the second connecting rod 22212 to drive the first pressure plate 2311 from the first position back to the second position. This releases the pressure of the second connecting sleeve 23121 and the first clamping element 2123 on the sealing ring, allowing the sealing ring to return to its initial state, thus facilitating the removal of the sample tube 6.

[0174] See Figure 12-13 The method of manually pressing and sealing the sample tube 6 in this application is described.

[0175] See Figure 12-13The sealing component is an elastic seal, specifically a sealing ring. A third connecting structure is provided at one end of the connector 212 located outside the machine body. The third connecting structure consists of a third connecting sleeve 2124 and a third clamping member 2125. The third clamping member 2125 extends along the connector 212 in a direction away from the axis of the connector 212, and the third connecting sleeve 2124 extends along the edge of the third clamping member 2125 towards the second pressure plate. External threads are provided on the outer side of the third connecting sleeve 2124. The movable component 22 includes a second pressure plate 223 and a fourth connecting structure. The second pressure plate 223 is provided with a second mounting channel 2111 communicating with the first mounting channel 2121, for the neck of the sample tube 6 to pass through and be inserted into the first mounting channel 2121. The fourth connection structure consists of a fourth connecting sleeve 224 and a fifth connecting sleeve 225 mounted on the second pressure plate 223. The fifth connecting sleeve 225 is located inside the fourth connecting sleeve 224, with a gap between them. This gap allows the third connecting sleeve 2124 to be positioned within the gap when the movable component 22 is assembled with the mounting connector 21. The inner wall of the fourth connecting sleeve 224 has an internal thread that connects to the external thread. The sealing component 23 is a sealing ring, located inside the third connecting sleeve 2124 and between the third clamping member 2125 and the fifth connecting sleeve 225. This allows the third clamping member 2125 and the fifth connecting sleeve 225 to compress the sealing ring when the fourth connecting sleeve 224 is threadedly connected to the third connecting sleeve 2124, thereby pressing and sealing the sample tube 6.

[0176] In the exemplary embodiments, the configuration of the third and fourth connecting structures is not fixed and can be adjusted as needed by those skilled in the art. For example, the third connecting structure is a third connecting sleeve 2124, and the fourth connecting structure is a fourth connecting sleeve 224 and a fourth clamping member. The fourth connecting sleeve 224 extends along the second pressure plate 223 toward the mounting joint 21. The inner diameter of the fourth connecting sleeve 224 is larger than the inner diameter of the third mounting channel, so that the second pressure plate 223 between the inner wall of the fourth connecting sleeve 224 and the third mounting channel serves as the second clamping member 23122. The inner wall of the fourth connecting sleeve 224 is provided with an internal thread, and the outer wall of the third connecting sleeve 2124 is provided with an external thread. The sealing ring is disposed inside the fourth connecting sleeve 224 and located between the fourth clamping member and the third connecting sleeve 2124, so that when the fourth connecting sleeve 224 is threadedly connected to the third connecting sleeve 2124, the fourth clamping member and the third connecting sleeve 2124 can compress the sealing ring, thereby pressing and sealing the sample tube 6. Alternatively, the third connection structure is a third connecting sleeve 2124 and a third clamping member 2125, and the fourth connection structure is a fourth connecting sleeve 224; the third clamping member 2125 extends along the joint 212 in a direction away from the axis of the joint 212, and the third connecting sleeve 2124 extends along the edge of the third clamping member 2125 towards the second pressure plate; the inner side of the third connecting sleeve 2124 is provided with an internal thread, and the third clamping member 2125 is located at the end of the third connecting sleeve 2124 away from the sealing assembly 23 and is connected to the mounting joint 21. The fourth connecting sleeve 224 extends along the second pressure plate 223 toward the mounting joint 21, and its outer wall is provided with an external thread that is threaded to the internal thread. The sealing component 23 is a sealing ring, which is located inside the third connecting sleeve 2124 and between the third clamping member 2125 and the fourth connecting sleeve 224. This allows the third clamping member 2125 and the fourth connecting sleeve 224 to compress the sealing ring when the fourth connecting sleeve 224 is threaded to the third connecting sleeve 2124, thereby pressing and sealing the sample tube 6.

[0177] Combination Figure 12-13 This describes the process of manually sealing the sample tube 6 using the installation mechanism 2.

[0178] When installing sample tube 6, the sealing ring is in its initial state. The sample tube 6 is passed through the third installation channel and the sealing ring, and finally inserted into the first installation channel 2121.

[0179] After the sample tube 6 is installed, the fourth connecting sleeve 224 is threaded onto the third connecting sleeve 2124. During the threaded connection process, the fifth connecting sleeve 225 and the third clamping member 2125 squeeze the sealing ring to achieve a tight seal on the sample tube 6.

[0180] After the test, the fourth connecting sleeve 224 is rotated in the opposite direction to release the second connecting sleeve 23121 and the first clamping member 2123 from squeezing the sealing ring, so that the sealing ring returns to its initial state, thus making it easier to remove the sample tube 6.

[0181] See next Figure 14-19 The heating furnace 3 of this application will be described.

[0182] See Figure 14-19 The heating furnace 3 includes a body 34, a temperature measuring element 314, a heating component 31, a cooling component, and a baffle assembly 33. The heating component 31 and the cooling component are housed within the body 34. The cooling component is a fan-cooled cooling component 32, and the heating component 31 is located on the side of the fan-cooled cooling component 32 closest to the mounting mechanism. The outlet of the fan-cooled cooling component 32 is positioned close to the heating component 31, while the inlet of the fan-cooled cooling component 32 is located away from the heating component 31.

[0183] It should be noted that the main body 34 may include two connecting covers, which are detachably connected. The main body 34 formed by the two connecting covers is sleeved outside the heating component 31 and the fan cooling component 32 as a whole and is connected to the heating component 31 and the fan cooling component 32, thus playing a protective role.

[0184] It should be noted that a protective net can be installed at the inlet of the fan cooling component 32 to effectively prevent foreign objects from entering the fan cooling component 32 and ensure the safe and stable operation of the fan cooling component 32.

[0185] In the exemplary embodiments, the number of connecting covers is not fixed and can be adjusted by those skilled in the art as needed. For example, the number of connecting covers can be one, three, or other numbers. When there is only one connecting cover, it serves as a protective cover, directly covering the heating assembly 31 and the fan cooling assembly 32. When there are three or more connecting covers, adjacent connecting covers are detachably connected. Furthermore, this application does not limit the detachable connection method of adjacent connecting covers, as long as they can be connected. For example, fasteners consisting of connecting plates, bolts, and nuts can be used to connect adjacent connecting covers together.

[0186] In the exemplary embodiments, the specific type of cooling component is not fixed in this application, and those skilled in the art can adjust it according to the setting requirements. For example, the cooling component can also be an air compressor cooling component, which can also generate cooling airflow to cool the sample tube containing the sample.

[0187] See next Figure 16-17In section 19, the heating assembly 31 includes a heating element, a heat-conducting block 312, and a temperature-sensing element 314. The heat-conducting block 312 is disposed within the body, and the temperature-sensing element 314 is disposed within it. The heating element is a heating wire 313, which is wound around the outside of the heat-conducting block 312. Four heating channels 3121 are formed on the heat-conducting block 312, each extending in the same direction and penetrating the heat-conducting block 312, and coaxially arranged with the first mounting channel 2121. Each heating channel 3121 is connected to the outlet of the cooling assembly. The four heating channels 3121 can simultaneously heat four sample tubes 6 containing samples, thereby improving experimental efficiency.

[0188] In the exemplary embodiments, the positions of the heating wire 313 and the temperature measuring element 314 are not fixed in this application, and those skilled in the art can adjust them as needed. For example, the heating wire 313 may also be disposed within the heat-conducting block 312, and / or the temperature measuring element 314 may be disposed within the heating channel 3121. Furthermore, the specific arrangement of the heating element is not fixed in this application, and those skilled in the art can adjust it according to the setting requirements. For example, the heating element may also be a heating rod, which may be disposed within the heat-conducting block 312.

[0189] In the exemplary embodiments, the number of heating channels 3121 is not fixed and can be selected by those skilled in the art as needed. For example, the number of heating channels 3121 can be 1, 2, 3, or other numbers, but it must be consistent with the number of the first mounting channels 2121. That is, when the number of the first mounting channels 2121 is 1, the number of heating channels 3121 is also 1. When the number of the first mounting channels 2121 is 2, the number of heating channels is also 2. The number can be 1, 2, 3, or other numbers.

[0190] See next Figure 16-18 The heating channel 3121 includes a third channel 31211 and a fourth channel 31212 that are interconnected. The third channel 31211 is close to the first mounting channel 2121 and is a channel of equal diameter, allowing the bottom of the sample tube 6 to be inserted into it. The fourth channel 31212 is located close to the fan cooling assembly 32 and is used to connect the third channel 31211 and the outlet of the cooling assembly. The fourth channel 31212 is funnel-shaped, and its inner diameter gradually decreases from the third channel 31211 towards the cooling assembly.

[0191] In the exemplary embodiments, the configuration of the fourth channel 31212 is not fixed and can be adjusted by those skilled in the art according to specific application scenarios. For example, the fourth channel 31212 can be a channel of equal diameter, with its inner diameter being smaller than that of the third channel 31211. Alternatively, the inner diameters of the third channel 31211 and the fourth channel 31212 can be the same.

[0192] See next Figure 16-17 In addition to component 19, the heating assembly 31 also includes a first insulation component 315, a second insulation component 316, and a third insulation component 317. The first insulation component 315 has a ring-shaped structure and is disposed between the main body and the heat-conducting block 312, covering the heating wire 313. This effectively enhances the heat insulation performance of the heating assembly 31, reduces interference from the external environment on the heating process, and ensures uniform heating of the sample in the sample tube 6. The second insulation component 316 is disposed on the side of the heat-conducting block 312 near the mounting mechanism and is connected to the end face of the first insulation component 315 away from the fan cooling assembly 32. The third insulation component 317 is disposed between the heat-conducting block 312 and the fan cooling assembly 32 and is connected to the end face of the first insulation component 315 near the fan cooling assembly. This arrangement effectively blocks heat loss from the heat-conducting block 312 and the heating wire 313, and significantly improves the overall heat insulation performance of the heating furnace 3.

[0193] In exemplary embodiments, the inclusion of at least one of the first insulation member 315, the second insulation member 316, and the third insulation member 317 in this application is not mandatory, and those skilled in the art can select them as needed.

[0194] In an exemplary embodiment, a first support plate 311 can be provided on the side of the second insulation component 316 away from the fan cooling assembly 32, and the first support plate 311 is connected to the second insulation component 316. A connecting piece can be provided on the first support plate 311, the position of the connecting piece corresponding to the connection point of two adjacent connecting covers, and the connecting cover is connected to the connecting piece by bolts and nuts. This connection method not only realizes the connection of adjacent connecting covers, but also allows the protective cover to be connected to the first support plate 311. It should be noted that the third channel 31211 on the second insulation component 316 can penetrate the first support plate 311 to facilitate the installation of the sample tube 6.

[0195] In an exemplary embodiment, a second support plate 321 may also be provided on the fan cooling component 32. The second support plate 321 is provided on the side of the fan cooling component 32 close to the heating component 31, which facilitates the installation of the heating component 31 and the fan cooling component 32 and improves the overall robustness of the heating furnace 3.

[0196] See next Figure 16-17The second insulation component 316 has four fifth channels 3161, which correspond one-to-one with the four third channels 31211 and are coaxially arranged. The inner diameters of the fifth channels 3161 and third channels 31211 are the same, allowing the bottom of the sample tube 6 to pass through the fifth channels 3161 and extend into the heating channel 3121. This effectively reduces interference from the external environment during the sample heating process and facilitates the installation of the sample tube 6. The third insulation component 317 has four sixth channels 3171, which correspond one-to-one with the four fourth channels 31212 and are coaxially arranged. The inner diameter of the sixth channels 3171 is the same as the minimum inner diameter of the fourth channels 31212, and both are connected to the outlet of the fan cooling component 32. This allows the cooling airflow generated by the fan cooling component 32 to enter the heating channel 3121 through the sixth channels 3171 to rapidly cool the sample tube 6, improving cooling efficiency.

[0197] In an exemplary embodiment, the number of fifth channels 3161 and sixth channels 3171 needs to be adjusted according to the number of heating channels 3121. For example, when there is one heating channel 3121, there is also one fifth channel 3161 and one sixth channel 3171. When there are two heating channels 3121, there are also two fifth channels 3161 and two sixth channels 3171.

[0198] See next Figure 14-16 The fifth channel 3161 is equipped with a heat insulation sheet 318, which is made of an elastic material. A third through-hole 3181 is provided on the heat insulation sheet 318, making it annular. Eight radially arranged through-slits 3182 are provided along the inner periphery of the heat insulation sheet 318, dividing it into eight petal-like structures. When the sample tube 6 passes through the third through-hole 3181 into the heating channel 3121, the petals are compressed and unfolded, thus adhering tightly to the outer wall of the sample tube 6 to form effective heat insulation. This ensures the installation of the sample tube 6 and further reduces interference from the external environment during the sample heating process. After the sample tube 6 is removed, the elastic heat insulation sheet 318 automatically returns to its original shape.

[0199] In the exemplary embodiment, the number of penetration slits 3182 is not fixed and can be adjusted by those skilled in the art as needed. For example, the number of penetration slits 3182 can be 2, 3, or other numbers.

[0200] In the exemplary embodiments, the provision of the third through hole 3181 on the heat insulation sheet 318 in this application is not mandatory, and those skilled in the art can adjust it according to the specific application scenario. For example, if the third through hole 3181 is not provided, at least one through slit 3182 can be directly provided on the heat insulation sheet 318, which is also beneficial for the installation of the sample tube 6 and can further reduce the interference of the external environment on the sample heating process.

[0201] See next Figure 16-18 A baffle assembly 33 is provided within the fourth channel 31212. The baffle assembly 33 includes a baffle 331, a connecting shaft 332, and a bracket 333, which is fixed to the inner wall of the fourth channel 31212. The connecting shaft 332 is fixed to the bracket 333 and extends along the bracket 333 toward the third channel 31211. A limit plate is provided at the end of the connecting shaft 332 away from the fan cooling assembly 32. The baffle 331 is located on the side of the bracket 333 away from the fan cooling assembly 32, and its inner diameter is larger than the minimum inner diameter of the fourth channel 31212 but smaller than the maximum inner diameter of the fourth channel 31212. A fourth through hole is provided on the baffle for the connecting shaft 332 to pass through, so that the baffle 331 is movably mounted on the connecting shaft 332, thereby being able to move between the third and fourth positions. In addition, the limit plate on the connecting shaft 332 effectively prevents the baffle 331 from falling off the connecting shaft 332 during movement. With the above configuration, when the heating assembly 31 heats the sample in the sample tube 6, the baffle 331 is in the third position, that is, it is in contact with the inner wall of the fourth channel 31212, disconnecting the connection between the third channel 31211 and the sixth channel 3171, thereby ensuring the heat insulation effect of the heating assembly 31. After the heating process is completed, the fan cooling assembly 32 operates, and the generated cooling airflow pushes the baffle 331 along the connecting shaft 332 to the fourth position, that is, to move away from the fan cooling assembly 32. At this time, the baffle 331 can be set in the third channel or near the fourth channel, no longer in contact with the inner wall of the fourth channel 31212. The third channel 31211 and the sixth channel 3171 form a connecting path, allowing the cooling airflow to enter the third channel 31211 through this path, thereby cooling the sample tube 6.

[0202] In the exemplary embodiment, the connection method between the bracket 333 and the connecting shaft 332 is not fixed and can be adjusted by those skilled in the art according to specific application scenarios. For example, the bracket 333 is provided with a second through hole extending along the axial direction of the heating channel 3121, and the connecting shaft 332 is movably inserted into the second through hole, with a baffle 331 fixed thereon. In order to prevent the connecting shaft 332 from coming out of the channel, limit plates are provided at both ends of the connecting shaft 332. With the above arrangement, when the heating assembly 31 heats the sample in the sample tube 6, the baffle 331 is in the third position, that is, it is in contact with the inner wall of the fourth channel 31212, disconnecting the communication between the third channel 31211 and the sixth channel 3171. After the heating process is completed, the fan cooling component 32 will work, and the generated cooling airflow will push the baffle 331 to drive the connecting shaft 332 to move to the fourth position along the axial direction of the second through hole, that is, to move away from the fan cooling component 32. This will also enable the third channel 31211 and the sixth channel 3171 to form a connecting path, so that the cooling airflow can enter the third channel 31211 through this path, thereby cooling the sample tube 6.

[0203] In this application, the axial direction refers to the first direction.

[0204] In the exemplary embodiments, the positional relationship between the baffle 331 and the bracket 333 is not fixed and can be adjusted as needed by those skilled in the art. For example, the bracket 333 can also be fixed to the inner wall of the third channel 31211. In this case, a connecting shaft 332 extending along the axial direction of the heating channel 3121 can be fixed on the bracket 333, or a second through hole extending along the axial direction of the heating channel 3121 can be provided on the bracket 333, and the connecting shaft 332 can be movably inserted into the second through hole. When the connecting shaft 332 is fixed on the bracket 333, the connecting shaft 332 extends along the bracket 333 toward the fan cooling component 32, the baffle 331 is located on the side of the bracket 333 near the fan cooling component 32, and is movably disposed on the connecting shaft 332. When the connecting shaft 332 is movably disposed on the bracket 333, the second through hole on the bracket 333 extends along the axial direction of the heating channel 3121, and the baffle 331 is disposed on the connecting shaft 332 on the side of the bracket 333 near the fan cooling component 32.

[0205] In an exemplary embodiment, when the fourth channel 31212 is a channel of equal diameter and the inner diameter of the fourth channel 31212 is smaller than the inner diameter of the third channel 31211, the baffle 331 can not only disconnect the connection between the third channel 31211 and the sixth channel 3171 by fitting against the fourth channel 31212, but also abut against the connection between the third channel 31211 and the fourth channel 31212 to disconnect the connection between the third channel 31211 and the fourth channel 31212; when the baffle 331 is located inside the third channel 31211, the connection between the third channel 31211 and the sixth channel 3171 is broken. However, it should be noted that when the connection between the third channel 31211 and the sixth channel 3171 is broken by the baffle 331 abutting against the connection between the third channel 31211 and the fourth channel 31212, the outer diameter of the baffle 331 is larger than the outer diameter of the baffle 331 when the connection between the third channel 31211 and the sixth channel 3171 is broken by the baffle 331 fitting against the fourth channel.

[0206] In the exemplary embodiment, the bracket 333 is not mandatory, and those skilled in the art can choose it according to the setup requirements. When the bracket 333 is not provided, and the inner diameter of the fourth channel 31212 gradually decreases from the heating component 31 towards the cooling component, the connecting shaft 332 can be fixed to the inner wall of the fourth channel 31212 and extend in the direction of the third channel 31211. When the bracket 333 is not provided, and the fourth channel 31212 is a channel of equal diameter, its inner diameter being smaller than the inner diameter of the third channel 31211 and smaller than the outer diameter of the baffle 331, the connecting shaft 332 is fixed at the connection between the third channel 31211 and the fourth channel 31212 and extends in the direction of the third channel 31211.

[0207] In the exemplary embodiments, the specific configuration of the baffle assembly 33 is not fixed and can be adjusted as needed by those skilled in the art. For example, the baffle assembly 33 includes a baffle 331 and a connecting shaft 332. The connecting shaft 332 is disposed near the cooling component in the heating channel 3121 and extends radially along the heating channel 3121. The baffle 331 is rotatably disposed on the connecting shaft 332 and can rotate between a fifth position and a sixth position. When the baffle 331 is in the fifth position, the baffle 331 is in contact with the inner wall of the heating channel 3121. When the baffle 331 is in the sixth position, the angle between the baffle 331 and the heating channel 3121 in the radial direction is greater than 0°, thereby connecting the third channel and the sixth channel. In the structure of the baffle assembly 33, the fourth channel 31212 in the heating channel 3121 is a channel of equal diameter, with its inner diameter being smaller than that of the third channel 31211. Alternatively, the inner diameters of the third channel 31211 and the fourth channel 31212 can be the same. The connecting shaft 332 can be located in either the third channel 31211 or the fourth channel 31212. With this configuration, when the heating assembly 31 heats the sample in the sample tube 6 and the baffle 331 is in the fifth position, the baffle 331 is in contact with the inner wall of either the third channel 31211 or the fourth channel 31212, disconnecting the connection between the heating channel 3121 and the sixth channel 3171. After the heating process is complete, the fan cooling assembly 32 operates, and the generated airflow pushes the baffle 331 to rotate around the connecting shaft 332, causing the baffle 331 to rotate from the fifth position to the sixth position. At this time, the baffle 331 and the heating channel 3121 form a certain angle in the radial direction. The heating channel 3121 is connected to the sixth channel 3171, so that the cooling airflow can enter the third channel 31211 through this path, thereby cooling the sample tube 6.

[0208] Combination Figure 1-19 This describes the workflow of the sample pretreatment equipment used in this application.

[0209] When installing sample tube 6, the first pressure plate 2311 is in the second position and the sealing ring is in the initial state. The sample tube 6 is passed through the third installation channel, the skeleton oil seal 233, and the sealing ring, and finally inserted into the first installation channel 2121 until the opening of the sample tube 6 abuts against the limiting structure formed by the difference in inner diameter between the first channel 21211 and the second channel 21212.

[0210] After sample tube 6 is installed, cylinder 2212 drives quick-connect insert 2211 to move from the notched end to the closed end within guide channel 22131. Since guide 2223 abuts against transition area 22112, the movement of quick-connect insert 2211 is converted by guide 2223 into movement of first connecting rod 22211 away from sealing assembly 23. At this time, elastic element is compressed, and the rebound force of elastic element causes second connecting rod 22212 to drive first pressure plate 2311 to move from second position to first position. During the movement, second connecting sleeve 23121 and first clamping element 2123 compress the sealing ring, achieving a tight seal on sample tube 6.

[0211] After the sample is sealed, the drive mechanism 5 drives the furnace 3 to move towards the mounting mechanism 2. As the furnace 3 gradually approaches the mounting mechanism, the bottom of the sample tube 6 passes through the heat insulation plate 318 and is inserted into the heating channel 3121. At this time, the baffle 331 is in the third position, fitting against the inner wall of the fourth channel 31212. The third channel 31211 and the sixth channel 3171 are not connected to each other. This heating channel 3121 ensures concentrated heat during sample pretreatment, providing a stable temperature environment for the sample.

[0212] After the pretreatment is completed, the fan cooling component 32 will work, and the generated cooling airflow will push the baffle 331 to move away from the fan cooling component 32 along the connecting shaft 332, so that the baffle 331 is no longer in contact with the inner wall of the fourth channel 31212, and the third channel 31211 and the sixth channel 3171 form a connecting path, so that the cooling airflow can enter the third channel 31211 through this path, thereby cooling the sample tube 6.

[0213] After the temperature of the sample tube 6 decreases, the drive mechanism 5 drives the heating furnace 3 away from the mounting mechanism 2, causing the sample tube 6 to detach from the heating furnace 3. After detachment, the cylinder 2212 reverses the direction of the quick-connect insert 2211, moving it from the closed end to the notched end within the guide channel 22131. This movement of the quick-connect insert 2211 is then converted by the guide member 2223 into the movement of the first connecting rod 22211 towards the sealing assembly 23. At this time, the elastic element is stretched, and the rebound force of the elastic element causes the second connecting rod 22212 to drive the first pressure plate 2311 from the first position back to the second position. This releases the pressure of the second connecting sleeve 23121 and the first clamping member 2123 on the sealing ring, allowing the sealing ring to return to its initial state. This facilitates the removal of the sample tube 6 for subsequent analysis and testing.

[0214] In addition, this application also provides an adsorption apparatus, which includes the sample pretreatment equipment described in any of the above embodiments.

[0215] Those skilled in the art will understand that although some embodiments described herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, any of the claimed embodiments in the claims of this application can be used in any combination.

[0216] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, 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 scope of protection of this application.

Claims

1. A sample pretreatment device, characterized in that, The sample pretreatment equipment includes: Body (1); The mounting mechanism (2) is disposed on the body (1) and has a first mounting channel (2121) extending in a first direction for mounting the neck of the sample tube (6); A heating furnace (3) is mounted on the machine body (1) and has a heating channel (3121) thereon for mounting the bottom of the sample tube (6); the heating channel (3121) is coaxially arranged with the first mounting channel (2121) and is configured to be able to approach or move away from the mounting mechanism (2); when the heating furnace (3) approaches the mounting mechanism (2), the bottom of the sample tube (6) can be inserted into the heating channel (3121); when the heating furnace (3) moves away from the mounting mechanism (2), the sample tube (6) can be detached from the heating channel (3121); An inlet / outlet gas mechanism (4) is disposed inside the body (1) and connected to the end of the first mounting channel (2121) away from the sample tube (6).

2. The sample pretreatment equipment according to claim 1, characterized in that, The installation mechanism (2) includes: Sealing assembly (23); Mounting connector (21), which is disposed on the body (1) and has the first mounting channel (2121) thereon; The movable component (22) is movably mounted on the mounting joint (21) and is capable of pushing the sealing component (23) to press and seal the sample tube (6) when it is movable relative to the mounting joint (21).

3. The sample pretreatment equipment according to claim 2, characterized in that, The output end of the active component (22) can be connected to the sealing component (23) and is configured to drive the sealing component (23) to move between a first position and a second position along the first direction; when the sealing component (23) moves to the first position, it cooperates with the mounting connector (21) to press and seal the sample tube (6) installed in the first mounting channel (2121); when the sealing component (23) moves to the second position, it disengages from the mounting connector (21) to facilitate the installation and removal of the sample tube (6).

4. The sample pretreatment equipment according to claim 3, characterized in that, The mounting joint (21) is provided with a second mounting channel (2111) along the first direction; and The movable component (22) includes a drive component (221) and a quick-connect lifting component (222). The drive component (221) is disposed on the side of the mounting joint (21) away from the sealing component (23). The quick-connect lifting component (222) includes a rod (2221) inserted into the second mounting channel (2111) and extending out of the second mounting channel (2111) at both ends along the first direction. One end of the rod (2221) is connected to the drive component (221), and the other end is connected to the sealing component (23), so that the sealing component (23) can move between the first position and the second position along the first direction under the action of the drive component (221) and the rod (2221).

5. The sample pretreatment equipment according to claim 4, characterized in that, The drive assembly (221) includes a quick-connect insert (2211) and a drive component connected to the quick-connect insert (2211). Both the quick-connect insert (2211) and the drive component are disposed on the side of the mounting joint (21) away from the sealing assembly (23), and the quick-connect insert (2211) is provided with a first connection structure. The rod (2221) has a second connecting structure at one end away from the sealing assembly (23). The second connecting structure cooperates with the first connecting structure, so that when the quick insert (2211) moves under the action of the driving member, it drives the sealing assembly (23) on the rod (2221) to move between the first position and the second position.

6. The sample pretreatment equipment according to claim 5, characterized in that, The first connection structure consists of an adjustment hole (22111) and a transition zone (22112). The adjustment hole (22111) allows the rod (2221) to pass through and enables the quick-connect insert (2211) to move relative to the rod (2221) along the length direction of the adjustment hole (22111). The transition zone (22112) is located on the side of the quick-connect insert (2211) away from the sealing assembly (23) and corresponds to the position of the adjustment hole (22111). 2112) The size of the quick insert (211) near the sealing assembly (3) gradually changes along the length of the adjusting hole (22111); the second connection structure is a guide (2223) abutting the transition zone (22112), the guide (2223) being able to move along the transition zone (22112) when the drive member drives the quick insert (2211) to move, thereby driving the sealing assembly (23) to move between the first position and the second position; or The first connection structure is a transition area (22112) located on the side of the quick insert (2211) away from the sealing assembly (23). The size of the transition area (22112) to the side of the quick insert (211) near the sealing assembly (3) gradually changes along the length direction of the adjustment hole (22111). The second connection structure is a connection hole provided on the rod (2221) that allows the quick insert (2211) to pass through. When the quick insert (2211) moves under the drive of the driving member and the transition area (22112) passes through the connection hole, it drives the sealing assembly (23) to move between the first position and the second position.

7. The sample pretreatment equipment according to claim 6, characterized in that, The transition zone (22112) is an inclined surface or a curved surface.

8. The sample pretreatment apparatus according to any one of claims 5-7, characterized in that, The drive assembly (221) further includes a quick-connect guide (2213), which is disposed on the side of the mounting joint (21) away from the sealing assembly (23) and forms a guide channel (22131) therein; the quick-connect insert (2211) is movably disposed within the guide channel (22131) so that the quick-connect insert (2211) can move within the guide channel (22131) under the drive of the drive assembly; and The guide channel (22131) is connected to the second installation channel (2111), and the second connection structure is located within the guide channel (22131).

9. The sample pretreatment equipment according to claim 4, characterized in that, The rod (2221) includes a first connecting rod (22211) and a second connecting rod (22212). The second connecting rod (22212) is inserted into the second mounting channel (2111), and its two ends extend out of the second mounting channel (2111). One end of the second connecting rod (22212) is connected to the first connecting rod (22211), and the other end is provided with the sealing assembly (23). as well as The end of the first connecting rod (22211) away from the sealing assembly (23) is connected to the driving assembly (221).

10. The sample pretreatment equipment according to claim 9, characterized in that, The quick-connect lifting assembly (222) also includes an elastic element; and The second connecting rod (22212) is a sleeve structure. A portion of the first connecting rod (22211) is disposed inside the second connecting rod (22212), and the other portion extends out of the second connecting rod (22212) and is connected to the drive assembly (221). An elastic element is provided on the first connecting rod (22211) located inside the second connecting rod (22212). The two ends of the elastic element along the first direction are respectively connected to the first limiting element (222111) on the first connecting rod (22211) and the second limiting element (222121) on the second connecting rod (22212); or The first connecting rod (22211) is a sleeve structure. A portion of the second connecting rod (22212) is disposed inside the second connecting rod (22212), and the other portion extends out of the second connecting rod (22212) and is connected to the sealing assembly (23). An elastic element is provided on the second connecting rod (22212) located inside the first connecting rod (22211). The two ends of the elastic element along the first direction are respectively connected to the first limiting element (222111) on the first connecting rod (22211) and the second limiting element (222121) on the second connecting rod (22212).

11. The sample pretreatment apparatus according to claim 10, characterized in that, The first limiting member (222111) is movably disposed on the first connecting rod (22211); and / or The second limiting member (222121) is movably disposed on the second connecting rod (22212).

12. The sample pretreatment equipment according to claim 3, characterized in that, The sealing assembly (23) includes a sealing plate (231) and an elastic seal (232). The sealing plate (231) is provided with a third mounting channel communicating with the first mounting channel (2121) and is connected to the movable assembly (22). The elastic seal (232) is located on the side of the sealing plate (231) near the mounting joint (21) and can be sleeved on the sample tube (6) so that when the sealing plate (231) moves from the second position to the first position, it cooperates with the mounting joint (21) to squeeze the elastic seal (232), thereby pressing and sealing the sample tube (6).

13. The sample pretreatment equipment according to claim 12, characterized in that, The mounting connector (21) is provided with a first insertion structure that is penetrated by the first mounting channel (2121); and The sealing plate (231) is provided with a second plug-in structure that is penetrated by the third installation channel and plugged into the first plug-in structure; when the first plug-in structure and the second plug-in structure are plugged into each other, the elastic seal (232) can be squeezed.

14. The sample pretreatment apparatus according to claim 13, characterized in that, The first insertion structure consists of a first connecting sleeve (2122) and a first clamping member (2123), and the second insertion member is a second connecting sleeve (23121). The first connecting sleeve (2122) is sleeved over the second connecting sleeve (23121), and the first clamping member (2123) is located at the end of the first connecting sleeve (2122) away from the sealing plate (231) and is connected to the mounting joint (21). The elastic sealing member (232) is located between the first clamping member (2123) and the second connecting sleeve (23121); or The first plug-in structure is a first connecting sleeve (2122), and the second plug-in component is a second connecting sleeve (23121) and a second clamping component (23122). The second connecting sleeve (23121) is sleeved outside the first connecting sleeve (2122), and the second clamping component (23122) is disposed at the end of the second connecting sleeve (23121) away from the mounting joint (21) and connected to the sealing plate (231). The elastic sealing component (232) is disposed between the second clamping component (23122) and the first connecting sleeve (2122).

15. The sample pretreatment apparatus according to any one of claims 12-14, characterized in that, The sealing plate (231) includes a first pressure plate (2311) and a connecting plate (2312). The connecting plate (2312) is disposed on the side of the first pressure plate (2311) near the mounting joint (21), and is provided with the third mounting channel and a first through hole for the movable end of the movable component (22) to pass through, so that the movable end of the movable component (22) is connected to the first pressure plate (2311). The third mounting channel passes through the first pressure plate (2311), and the elastic seal (232) is located on the side of the connecting plate (2312) near the mounting joint (21).

16. The sample pretreatment apparatus according to claim 15, characterized in that, When the sealing plate (231) is provided with a second plug-in structure, the second plug-in structure is provided on the first pressure plate (2311) or the connecting plate (2312).

17. The sample pretreatment apparatus according to claim 12, characterized in that, The sealing assembly (23) further includes a skeleton oil seal (233); and The inner wall of the sealing plate (231) is provided with an assembly groove, and the skeleton oil seal (233) is installed in the assembly groove.

18. The sample pretreatment equipment according to claim 3, characterized in that, The mounting mechanism (2) further includes a pull rod (24) that connects the movable component (22) to the sealing component (23).

19. The sample pretreatment equipment according to claim 2, characterized in that, The sealing component is an elastic seal (332). The first mounting channel (2121) is threadedly connected to the movable component (22) at one end near the heating furnace (3). During the threaded connection process, the movable component (22) can push the elastic seal (332) to press and seal the sample tube (6).

20. The sample pretreatment apparatus according to claim 19, characterized in that, The mounting joint (21) is provided with a third connecting structure that is penetrated by the first mounting channel (2121); and The active component (22) includes a second pressure plate (223) and a fourth connecting structure. The second pressure plate (223) is provided with a third mounting channel communicating with the first mounting channel (2121). The second pressure plate (223) is provided with the fourth connecting structure that is penetrated by the third mounting channel. When the fourth connecting structure is threadedly connected to the third connecting structure, it can squeeze the elastic seal (332) to press and seal the sample tube (6).

21. The sample pretreatment apparatus according to claim 20, characterized in that, The third connecting structure is a third connecting sleeve (2124) and a third clamping member (2125); the fourth connecting structure is a fourth connecting sleeve (224) and a fifth connecting sleeve (225) located inside the fourth connecting sleeve (224); the third connecting sleeve (2124) is disposed between the fourth connecting sleeve (224) and the fifth connecting sleeve (225) and is threadedly connected to the fourth connecting sleeve (224); the third clamping member (2125) is disposed at one end of the third connecting sleeve (2124) away from the second pressure plate (223) and is connected to the mounting joint (21); the elastic sealing member (332) is disposed inside the third connecting sleeve (2124) and located between the third clamping member (2125) and the fifth connecting sleeve (225); or The third connecting structure is a third connecting sleeve (2124), and the fourth connecting structure is a fourth connecting sleeve (224) and a fourth clamping member; the fourth connecting sleeve (224) is connected to the second pressure plate (223) through the fourth clamping member, and the fourth connecting sleeve (224) is located outside the third connecting sleeve (2124) and threadedly connected to the third connecting sleeve (2124); the elastic sealing member (332) is disposed inside the fourth connecting sleeve (224) and is located between the fourth clamping member and the third connecting sleeve (2124); or The third connecting structure is a third connecting sleeve (2124) and a third clamping member (2125), and the fourth connecting structure is a fourth connecting sleeve (224). The third connecting sleeve (2124) is disposed on the outside of the fourth connecting sleeve (224) and is threadedly connected to the fourth connecting sleeve (224). The third clamping member (2125) is disposed at one end of the third connecting sleeve (2124) away from the second pressure plate (223) and is connected to the mounting joint (21). The elastic sealing member (332) is disposed inside the third connecting sleeve (2124) and is located between the third clamping member (2125) and the fourth connecting sleeve (224).

22. The sample pretreatment equipment according to claim 2, characterized in that, The first mounting channel (2121) includes a first channel (21211) and a second channel (21212) that are interconnected. The first channel (21211) is close to the sealing assembly (23) and its inner diameter is larger than that of the second channel (21212), and is used to insert the sample tube (6). The inner diameter of the second channel (21212) is smaller than that of the sample tube (6), and is used to connect with the inlet / outlet gas mechanism (4). The difference in the inner diameters of the first channel (21211) and the second channel (21212) forms a limiting structure that restricts the insertion depth of the sample tube (6); or The first installation channel (2121) is provided with a third limiting member for limiting the insertion depth of the sample tube (6).

23. The sample pretreatment equipment according to claim 2, characterized in that, The mounting connector (21) includes a mounting block (211) and a connector (212). The connector (212) is located on the side of the mounting block (211) near the sealing assembly (23) and has the first mounting channel (2121) at the end away from the mounting head.

24. The sample pretreatment equipment according to claim 2, characterized in that, The number of the first installation channel (2121) is at least one.

25. The sample pretreatment equipment according to claim 1, characterized in that, The heating furnace (3) includes a body (34) and a heating component (31) disposed within the body (34). The heating component (31) has a heating channel (3121) formed inside it and is configured to move closer to or further away from the mounting mechanism (2) in a first direction under the action of the body (34).

26. The sample pretreatment apparatus according to claim 25, characterized in that, The heating furnace (3) further includes a cooling component and a baffle assembly (33). The cooling component is disposed inside the body (34) and on the side of the heating component (31) away from the mounting mechanism (2). The outlet of the cooling component is connected to the heating channel (3121). The baffle assembly (33) is disposed on the heating channel (3121) near the cooling component and is configured to disconnect or connect the heating channel (3121) with the outlet.

27. The sample pretreatment apparatus according to claim 26, characterized in that, The baffle assembly (33) includes a baffle (331) and a connecting shaft (332), the connecting shaft (332) being disposed on the heating channel (3121) near the cooling component; the baffle (331) is disposed on the connecting shaft (332) and is configured to allow the heating channel (3121) to be disconnected from or connected to the outlet.

28. The sample pretreatment apparatus according to claim 27, characterized in that, The connecting shaft (332) is arranged along the first direction so that the baffle (331) can move between the third position and the fourth position along the first direction; When the baffle (331) is in the third position, it can disconnect the heating channel (3121) and the outlet; when the baffle (331) is in the fourth position, it can connect the heating channel (3121) and the outlet.

29. The sample pretreatment apparatus according to claim 28, characterized in that, The heating channel (3121) includes a third channel (31211) and a fourth channel (31212) that are interconnected. The connecting shaft (332) is disposed within either the third channel (31211) or the fourth channel (31212). The third channel (31211) is located away from the cooling component, and the fourth channel (31212) is located close to the cooling component. The inner diameter of the fourth channel (31212) is smaller than the inner diameter of the third channel (31211) and less than or equal to the outer diameter of the baffle (331); when the baffle (331) is in the third position, the baffle (331) abuts against the connection between the third channel (31211) and the fourth channel (31212); or the baffle (331) is in contact with the inner wall of the fourth channel (31212); when the baffle (331) is in the fourth position, the baffle (331) is located inside the third channel (31211); or The inner diameter of the fourth channel (31212) gradually decreases from the heating component (31) towards the cooling component, and its minimum inner diameter is smaller than the inner diameter of the baffle (331). When the baffle (331) is in the third position, the baffle (331) is in contact with the inner wall of the fourth channel (31212), thereby disconnecting the connection between the heating channel (3121) and the outlet. When the baffle (331) is in the fourth position, the baffle (331) is located in the third channel (31211) or the fourth channel (31212), thereby connecting the heating channel (3121) and the outlet.

30. The sample pretreatment apparatus according to claim 28 or 29, characterized in that, The baffle assembly (33) further includes a bracket (333) disposed in the heating channel (3121) near the cooling assembly; and The connecting shaft (332) is fixed on the bracket (333) and the baffle (331) is movably disposed thereon; or, the bracket (333) is provided with a second through hole extending along the first direction, the connecting shaft (332) is movably inserted into the second through hole and the baffle (331) is fixed thereon.

31. The sample pretreatment apparatus according to claim 27, characterized in that, The connecting shaft (332) is arranged in the radial direction of the heating channel (3121), and the baffle (331) is rotatably arranged on the connecting shaft (332) and is configured to rotate between the fifth position and the sixth position; When the baffle (331) is in the fifth position, the baffle (331) is in contact with the inner wall of the heating channel (3121); when the baffle (331) is in the sixth position, the included angle between the baffle (331) and the radial direction of the heating channel (3121) is greater than 0°.

32. The sample pretreatment apparatus according to claim 25 or 26, characterized in that, The heating assembly (31) includes a heat-conducting block (312) and a heating element. The heat-conducting block (312) is disposed inside the body (34) and the heating channel (3121) is formed thereon. The heating element is disposed on the outer wall of the heat-conducting block (312) or inside the heat-conducting block (312).

33. The sample pretreatment equipment according to claim 32, characterized in that, The heating assembly (31) further includes a first heat insulation component (315) disposed within the body (34). The first heat insulation component (315) has an annular structure and is disposed between the body (34) and the heat-conducting block (312).

34. The sample pretreatment equipment according to claim 32, characterized in that, The heating assembly (31) further includes a second heat insulation component (316) disposed in the body (34). The second heat insulation component (316) is disposed on the side of the heat-conducting block (312) near the mounting mechanism (2), and has a fifth channel (3161) communicating with the heating channel (3121).

35. The sample pretreatment apparatus according to claim 34, characterized in that, The fifth channel (3161) is provided with a heat insulation sheet (318); and The heat insulation sheet (318) is provided with a third through hole (3181), and the inner circumference of the third through hole (3181) is provided with at least one penetrating slit (3182) in the radial direction; or, the heat insulation sheet (318) is provided with at least one penetrating slit (3182).

36. The sample pretreatment apparatus according to claim 35, characterized in that, The heat insulation sheet (318) is made of an elastic material.

37. The sample pretreatment equipment according to claim 32, characterized in that, The heating assembly (31) also includes a third heat insulation component (317) disposed in the body (34). The third heat insulation component (317) is disposed on the side of the heat-conducting block (312) away from the mounting mechanism (2), and a sixth channel (3171) communicating with the heating channel (3121) is provided thereon.

38. The sample pretreatment equipment according to claim 32, characterized in that, The heating furnace (3) also includes a temperature measuring element (314), which is disposed on the heat-conducting block (312).

39. The sample pretreatment equipment according to claim 26, characterized in that, The cooling component is a fan cooling component (32) or an air compressor cooling component.

40. The sample pretreatment equipment according to claim 1, characterized in that, The sample pretreatment machine also includes a drive mechanism (5); and The drive mechanism (5) is disposed inside the body (1), and the body (1) is provided with a slide rail (12) extending in a first direction. The output end of the drive mechanism (5) passes through the slide rail (12) and is connected to the heating furnace (3) or the mounting mechanism (2) so that the heating furnace (3) and the mounting mechanism (2) can move closer or further away; or the drive mechanism (5) is disposed on the body (1), and its output end is connected to the heating furnace (3) or the mounting mechanism (2) so that the heating furnace (3) and the mounting mechanism (2) can move closer or further away.

41. An adsorption apparatus, characterized in that, The adsorption apparatus includes the sample pretreatment device according to any one of claims 1-40.

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