False tooth experiment thermogravimetric analysis furnace

Abstract

The invention relates to the field of false tooth thermogravimetric analysis, in particular to a false tooth experiment thermogravimetric analysis furnace which comprises a limiting table, a false tooth analysis limiting ring fixedly installed on the outer side surface of the top of the limiting table and a false tooth crucible movably connected to the inner side wall face of the false tooth analysis limiting ring in a sleeving mode. The inner side wall surface of the false tooth crucible is movably sleeved with an analysis sample raw material; a temperature controller is fixedly installed at the output end of the limiting table, and a butt joint sealing ring is fixedly installed on the surface of the bottom of the temperature controller. A raw material needing thermogravimetric analysis is put into an analysis sample raw material, at the moment, a false tooth crucible on the outer side surface of the bottom of the analysis sample raw material is connected to the top surface of a false tooth analysis limiting ring in a sleeving mode, the position of the analysis sample raw material is limited, and at the moment, a butt joint sealing ring is moved downwards in cooperation with a temperature controller; the butt-joint sealing ring is inserted into the false tooth analysis limiting ring in a butt-joint manner, and the butt-joint sealing ring and the false tooth analysis limiting ring are used for keeping the analysis sample raw materials in a sealed environment.

Description

Technical Field

[0001] The invention belongs to the technical field of denture thermogravimetric analysis, in particular to a denture experimental thermogravimetric analysis furnace. Background Art

[0002] The study of chemical reaction characteristics, including reaction rates and kinetic parameters, is often conducted using thermogravimetric analyzers. A thermogravimetric analyzer is capable of real-time weighing of reactants during a chemical reaction, allowing the mass changes of reactants at different temperatures to be determined in a single experiment. However, in actual scientific research, the use of thermogravimetric analyzers is subject to numerous limitations. Many reactions are conducted at temperatures exceeding the operating temperature of the thermogravimetric analyzer, or atmospheres containing reducing components can corrode the thermocouples of the thermogravimetric analyzer at high temperatures. Under these conditions, the thermogravimetric analyzer cannot be used or is extremely expensive.

[0003] A patent with publication number CN104089477A discloses a thermogravimetric analysis furnace capable of supporting large-mass samples, with stable support and simple structure. The thermogravimetric analysis furnace includes a furnace and an electronic analytical balance, wherein a refractory container for holding samples to be analyzed is provided in the furnace: the thermogravimetric analysis furnace also includes a support frame connecting the refractory container and the electronic analytical balance, the support frame includes a connecting part and a supporting part, the upper part of the connecting part is connected to the bottom of the refractory container by a concave-convex plug-in connection, the lower part of the connecting part is connected to the upper part of the supporting part, and the size of the supporting part increases from top to bottom in a cone shape.

[0004] In the current state of the art, existing thermogravimetric analyzers are primarily designed for analyzing small samples, resulting in a crucible that is both very small in size and weight. Furthermore, existing fixtures cannot adapt to different crucibles when engaged and positioned with the crucible. Furthermore, when heated at high temperatures, the fixtures adhere to the crucible and cannot be released automatically.

[0005] To this end, the present invention provides a denture experiment thermogravimetric analysis furnace. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: a denture experimental thermogravimetric analysis furnace described in the present invention includes a limiting platform and a denture analysis limiting ring fixedly installed on the outer surface of the top of the limiting platform, a denture crucible movably sleeved on the inner wall surface of the denture analysis limiting ring, and an analysis sample raw material movably sleeved on the inner wall surface of the denture crucible; a temperature controller is fixedly installed on the output end of the limiting platform, a docking sealing ring is fixedly installed on the bottom surface of the temperature controller, and a fan is fixedly installed on one side surface of the limiting platform and at the edge position of the denture analysis limiting ring; Multiple groups of sleeves are fixedly installed on the inner wall surface of the denture analysis limit ring, a downward pressure sleeve is movably sleeved on the top outer surface of the sleeve, a downward pressure limiting plate is fixedly connected to the top surface of the downward pressure sleeve, a push block movably overlapped on the bottom surface of the downward pressure sleeve is movably sleeved on one side surface of the sleeve, a pullback elastic wire arranged on the outer surface of the push block is fixedly connected on the inner wall surface of the sleeve, an extrusion docking head is provided on the top surface of the push block, and a denture overlapping platform is provided on the inner wall surface of the denture analysis limit ring.

[0008] Preferably, a limiting groove is provided on the top surface of the denture crucible, a docking groove is provided on the inner wall surface of the limiting groove, and the outer surface of the pushing block is movably sleeved on the outer surface of the denture crucible.

[0009] Preferably, a lower pressing plate is movably sleeved on the inner side wall of the limiting groove, and a docking column movably sleeved on the inner side wall of the docking groove is fixedly connected to the bottom surface of the lower pressing plate.

[0010] Preferably, a padding block is fixedly connected to the top surface of the lower pressing plate, and the outer surface of the analysis sample raw material is movably overlapped on the top surface of the padding block.

[0011] Preferably, a docking limit column 1 is fixedly installed on the top surface of the limit platform and located on the four edges of the denture analysis limit ring, and a docking limit column 2 is fixedly connected to the top surface of the docking limit column 1.

[0012] Preferably, a fitting shell is fixedly installed on the top surface of the docking limit column one and on the side edge position of the docking limit column two, an electric motor is fixedly installed on the bottom inner wall surface of the fitting shell, and a semicircular docking plate is fixedly connected to the output end of the electric motor.

[0013] Preferably, a limit plate is provided on one side surface of the sleeve, a limit strip is provided on the inner wall surface of the sleeve, and the outer surface of the push block is movably overlapped on the outer surface of the limit plate.

[0014] Preferably, an R-shaped fillet 1 is provided on one side surface of the pressing sleeve, and an R-shaped fillet 2 is provided on the outer side surface of one end of the pushing block.

[0015] Preferably, a lifter is provided on the outer surface of the limit platform, the outer surface of the temperature controller is provided on the inner wall of the lifter, and the outer surface of the temperature controller is movably overlapped on the upper and lower surfaces of the semicircular docking plate.

[0016] Preferably, a lap support plate is fixedly connected to the bottom surface of the limit platform, a data analyzer is fixedly installed on the top surface of the lap support plate and at a side edge position of the limit platform, a limiting docking groove is provided on the bottom surface of the docking sealing ring, and a lower pressure arm is provided on the inner wall surface of the docking sealing ring and at a side edge position of the limiting docking groove.

[0017] The beneficial effects of the present invention are as follows: 1. The present invention relates to a denture experimental thermogravimetric analysis furnace. Raw materials to be thermogravimetrically analyzed are placed inside the analysis sample raw materials. The denture crucible on the outer bottom surface of the analysis sample raw materials is then sleeved onto the top surface of the denture analysis limiting ring to define the position of the analysis sample raw materials. The temperature controller is then used to move the docking seal ring downward and allow it to dock and insert into the denture analysis limiting ring. The docking seal ring and the denture analysis limiting ring are then used to maintain the analysis sample raw materials in a sealed environment. A fan is then used to ventilate the space inside the denture analysis limiting ring to reduce the possibility that impurities in the air may affect the thermogravimetric accuracy of the raw materials. 2. In the denture experimental thermogravimetric analysis furnace described in the present invention, after the docking sealing ring is inserted into the denture analysis limiting ring, the upper and lower pressure arms on the inner wall of the docking sealing ring press down the surface of the lower pressure limiting plate, thereby driving the lower pressure sleeve to squeeze and push the surface of the push block. As the push block extends from the inside of the sleeve, the surface of the push block is engaged with the groove on the outer surface of the denture crucible, which can perform a secondary limit on the position of the denture crucible. At the same time, the extrusion joint on the outer surface of the top of the push block is cooperated to extrude and limit the surface of the lower pressure plate, thereby preventing the instrument from shaking due to external raw materials during a long reaction, which may cause the internal reaction raw materials to burst out. 3. In the denture experiment thermogravimetric analysis furnace described in the present invention, after the thermogravimetric reaction of the sample raw material is completed, the temperature controller drives the docking seal ring to move upward. When the downward pressure on the top of the lower pressure shell is no longer exerted, the push block is pulled back by the pullback elastic wire, stretching the push block into the interior of the shell. At this time, the lower pressure shell is lifted by the two R-shaped fillets on the outer surface of the push block, thereby separating the push block and the extrusion docking joint from the surfaces of the denture crucible and the lower pressure plate, thereby facilitating the subsequent replacement of the denture crucible. 4. In the denture experimental thermogravimetric analysis furnace described in the present invention, the analysis sample raw material is overlapped on the top surface of the spacer block. At this time, the groove on the surface of the spacer block is used to define the position of the analysis sample raw material, so that a certain gap is left between the analysis sample raw material and the lower pressing plate, so that the upper and lower edges of the analysis sample raw material can be more evenly heated. At the same time, the docking column on the bottom surface of the lower pressing plate is docked into the interior of the docking groove and the position of the lower pressing plate is defined, so that it is convenient for subsequent replacement of the lower pressing plate. 5. The denture experimental thermogravimetric analysis furnace described in the present invention, when the denture crucible is positioned, the temperature controller is lowered by the lifting device, and the temperature controller is docked with the docking limit column 1. At this time, the docking limit column 2 is inserted into the interior of the temperature controller, and the position of the temperature controller is raised and supported by the docking limit column 1. At this time, the semicircular docking plate is rotated by the electric motor, and the outer surface of the semicircular docking plate is inserted into the interior of the temperature controller to limit the position of the temperature controller, so as to avoid slight shaking during the lifting and lowering of the temperature controller, which may cause the analysis sample raw materials inside the denture crucible to fall over. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 It is a perspective view of the present invention; Figure 2 It is a three-dimensional diagram of the limiting platform in the present invention; Figure 3 It is a three-dimensional diagram of the denture analysis limiting ring in the present invention; Figure 4 It is a sectional stereogram of the denture analysis limiting ring in the present invention; Figure 5 This is a three-dimensional diagram of the expansion of the denture analysis limit ring in the present invention; Figure 6 It is a sectional stereogram of the denture analysis limiting ring in the present invention; Figure 7 is an expanded perspective view of the denture crucible of the present invention; Figure 8 It is a partially cutaway stereoscopic view of a docking limit column in the present invention.

[0020] In the figure: 11, overlapping support plate; 111, limiting platform; 112, lifting device; 113, temperature controller; 114, docking seal ring; a1, limiting docking groove; a2, lower pressure arm; 115, data analyzer; 116, fan; 12, docking limiting column 1; 121, docking limiting column 2; 122, fitting shell; 123, electric motor; 124, semicircular docking plate; 13, denture analysis limiting ring; 131, shell; 132, Limiting plate; 133. Limiting strip; 134. Pressing down sleeve; 135. Pressing down limiting plate; 136. R-shaped fillet 1; 137. Pull-back elastic wire; 138. Pushing block; 139. R-shaped fillet 2; 1310. Extrusion joint; 1311. Denture joint platform; 14. Denture crucible; 141. Limiting groove; 142. Docking groove; 143. Pressing down plate; 144. Docking column; 145. Heightening block; 146. Analytical sample raw materials. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figures 1 to 7 As shown, a denture experimental thermogravimetric analysis furnace according to an embodiment of the present invention includes a limiting platform 111 and a denture analysis limiting ring 13 fixedly mounted on the outer surface of the top of the limiting platform 111, a denture crucible 14 movably sleeved on the inner wall of the denture analysis limiting ring 13, and an analysis sample raw material 146 movably sleeved on the inner wall of the denture crucible 14; a temperature controller 113 is fixedly mounted on the output end of the limiting platform 111, a docking sealing ring 114 is fixedly mounted on the bottom surface of the temperature controller 113, and a fan 116 is fixedly mounted on one side surface of the limiting platform 111 and at the edge of the denture analysis limiting ring 13; Multiple groups of sleeves 131 are fixedly installed on the inner wall of the denture analysis limit ring 13, and a downward pressure sleeve 134 is movably sleeved on the top outer surface of the sleeve 131, and a downward pressure limiting plate 135 is fixedly connected to the top surface of the downward pressure sleeve 134. A pushing block 138 that is movably overlapped on the bottom surface of the downward pressure sleeve 134 is movably sleeved on one side surface of the sleeve 131, and a pullback elastic wire 137 arranged on the outer surface of the pushing block 138 is fixedly connected on the inner wall of the sleeve 131, and an extrusion docking joint 1310 is arranged on the top surface of the pushing block 138. A denture overlapping platform 1311 is arranged on the inner wall of the denture analysis limit ring 13.

[0023] The raw materials to be analyzed by thermogravimetric analysis are placed inside the analysis sample raw material 146. At this time, the denture crucible 14 on the outer surface of the bottom of the analysis sample raw material 146 is sleeved on the top surface of the denture analysis limiting ring 13 to limit the position of the analysis sample raw material 146. At this time, the temperature controller 113 is used to move the docking sealing ring 114 downward, and the docking sealing ring 114 is docked and inserted into the denture analysis limiting ring 13. The docking sealing ring 114 and the denture analysis limiting ring 13 are used to keep the analysis sample raw material 146 in a sealed environment. At this time, the fan 116 is used to ventilate the space inside the denture analysis limiting ring 13 to reduce the situation where impurities in the air affect the thermogravimetric accuracy of the raw materials; When the docking seal ring 114 is inserted into the interior of the denture analysis limit ring 13, the upper and lower pressure arms a2 on the inner wall of the docking seal ring 114 press down the surface of the lower pressure limit plate 135, thereby driving the lower pressure housing 134 to squeeze and push the surface of the push block 138. As the push block 138 extends from the interior of the housing 131, the surface of the push block 138 is engaged with the groove on the outer surface of the denture crucible 14, which can limit the position of the denture crucible 14 for a second time. At the same time, the extrusion joint 1310 on the outer surface of the top of the push block 138 squeezes and limits the surface of the lower pressure plate 143, thereby preventing the instrument from shaking due to external raw materials during a long reaction, thereby preventing the internal reaction raw materials from being ejected; When the thermogravimetric reaction of the analysis sample raw material 146 is completed, the temperature controller 113 drives the docking sealing ring 114 to move upward. When there is no downward pressure on the top of the lower pressure shell 134, the pushing block 138 will be pulled back by the pullback elastic wire 137, and the pushing block 138 will be stretched into the interior of the shell 131. At this time, the R-shaped fillet 139 on the outer surface of the pushing block 138 is used to lift the lower pressure shell 134, so that the pushing block 138 and the extrusion docking joint 1310 are detached from the surface of the denture crucible 14 and the lower pressure plate 143, which is convenient for the subsequent replacement of the denture crucible 14.

[0024] like Figures 3 to 6 As shown, a limit plate 132 is provided on one side surface of the sleeve 131, a limit strip 133 is provided on the inner wall surface of the sleeve 131, the outer surface of the push block 138 is movably overlapped on the outer surface of the limit plate 132, an R-shaped fillet 136 is provided on one side surface of the pressing sleeve 134, and an R-shaped fillet 2 139 is provided on the outer surface of one end of the push block 138.

[0025] When the pressing sleeve 134 is pressed downward by the pressing limit plate 135, the R-shaped fillet 136 on the bottom surface of the pressing sleeve 134 is fitted with the R-shaped fillet 2 139 on the outer surface of the pushing block 138. At this time, the arc angle between the surfaces of the R-shaped fillet 136 and the R-shaped fillet 2 139 is utilized to better squeeze, push, slide and stagger the R-shaped fillet 136 and the R-shaped fillet 2 139, so that the pressing sleeve 134 can better push the pushing block 138 to move.

[0026] like Figures 3 to 7 As shown, a limiting groove 141 is provided on the top surface of the denture crucible 14, and a docking groove 142 is provided on the inner wall surface of the limiting groove 141. The outer surface of the pushing block 138 is movably sleeved on the outer surface of the denture crucible 14, and a limiting docking groove a1 is provided on the bottom surface of the docking sealing ring 114. A lower pressure arm a2 is provided on the inner wall surface of the docking sealing ring 114 and on one side edge position of the limiting docking groove a1. A lower pressure plate 143 is movably sleeved on the inner wall surface of the limiting groove 141, and a docking column 144 movably sleeved on the inner wall surface of the lower pressure plate 143 is fixedly connected to the bottom surface of the lower pressure plate 143, and a padding block 145 is fixedly connected to the top surface of the lower pressure plate 143. The outer surface of the analytical sample raw material 146 is movably overlapped on the top surface of the padding block 145.

[0027] The analysis sample raw material 146 is overlapped on the top surface of the raising block 145. At this time, the position of the analysis sample raw material 146 is limited by the groove on the surface of the raising block 145, and a certain gap is left between the analysis sample raw material 146 and the lower pressure plate 143, so that the upper and lower edge positions of the analysis sample raw material 146 can be better and more evenly heated. At the same time, the docking column 144 on the bottom surface of the lower pressure plate 143 is docked into the interior of the docking groove 142, and the position of the lower pressure plate 143 is limited, so that it is convenient for the subsequent replacement of the lower pressure plate 143.

[0028] like Figures 1 to 2 and Figure 8As shown, a docking limit column 12 is fixedly installed on the top surface of the limit platform 111 and located on the edge positions of the four sides of the denture analysis limit ring 13, a docking limit column 2 121 is fixedly connected to the top surface of the docking limit column 12, a fitting shell 122 is fixedly installed on the top surface of the docking limit column 12 and located on one side edge position of the docking limit column 2 121, an electric motor 123 is fixedly installed on the bottom inner wall surface of the fitting shell 122, a semicircular docking disk 124 is fixedly connected to the output end of the electric motor 123, and a lifter is provided on the outer surface of the limit platform 111. 112, the outer surface of the temperature controller 113 is arranged on the inner wall of the lifter 112, and the outer surface of the temperature controller 113 is movably overlapped on the upper and lower surfaces of the semicircular docking plate 124, and the bottom surface of the limit platform 111 is fixedly connected with an overlapping support plate 11, and the top surface of the overlapping support plate 11 and the data analyzer 115 are fixedly installed on the top surface of the overlapping support plate 11 and on the edge of one side of the limit platform 111. A limiting docking groove a1 is provided on the bottom surface of the docking sealing ring 114, and a lower pressure arm a2 is provided on the inner wall of the docking sealing ring 114 and on the edge of one side of the limiting docking groove a1.

[0029] When the denture crucible 14 is positioned, the temperature controller 113 is lowered by the lifting device 112. At this time, the temperature controller 113 is docked with the docking limit column 12. At this time, the docking limit column 121 is inserted into the interior of the temperature controller 113, and the docking limit column 12 is used to raise and support the position of the temperature controller 113. At this time, the semicircular docking plate 124 is rotated by the electric motor 123, and the outer surface of the semicircular docking plate 124 is inserted into the interior of the temperature controller 113 to limit the position of the temperature controller 113, so as to avoid slight shaking during the lifting and lowering of the temperature controller 113, which may cause the analytical sample raw material 146 inside the denture crucible 14 to fall over.

[0030] Working principle: The raw materials to be analyzed by thermogravimetric analysis are placed inside the analysis sample raw material 146. At this time, the denture crucible 14 on the outer surface of the bottom of the analysis sample raw material 146 is sleeved on the top surface of the denture analysis limit ring 13 to limit the position of the analysis sample raw material 146. At this time, the temperature controller 113 is used to move the docking sealing ring 114 downward, and the docking sealing ring 114 is docked and inserted into the denture analysis limit ring 13. The docking sealing ring 114 and the denture analysis limit ring 13 are used to keep the analysis sample raw material 146 in a sealed environment. At this time, the fan 116 is used to ventilate the space inside the denture analysis limit ring 13 to reduce the situation where impurities in the air will affect the thermogravimetric accuracy of the raw materials. When the docking sealing ring 114 is inserted into the interior of the denture analysis limit ring 13, the upper and lower pressure arms a2 on the inner wall of the docking sealing ring 114 press down the surface of the lower pressure limit plate 135, thereby driving the lower pressure shell 134 to squeeze and push the surface of the push block 138. As the push block 138 extends from the inside of the shell 131, the surface of the push block 138 is engaged with the groove on the outer surface of the denture crucible 14, which can limit the position of the denture crucible 14 for a second time. At the same time, the extrusion joint 1310 on the outer surface of the top of the push block 138 squeezes and limits the surface of the lower pressure plate 143, avoiding the instrument from being damaged by external raw materials during a long reaction. The instrument is shaken, and the reaction materials inside are ejected. When the thermogravimetric reaction of the sample raw material 146 is completed, the temperature controller 113 drives the docking seal ring 114 to move upward. When the top of the pressing shell 134 is no longer under downward pressure, the push block 138 is pulled back by the pull-back elastic wire 137, and the push block 138 is pulled into the interior of the shell 131. At this time, the R-shaped fillet 139 on the outer surface of the push block 138 is used to lift the pressing shell 134, thereby separating the push block 138 and the extrusion joint 1310 from the surface of the denture crucible 14 and the lower pressure plate 143, making it easier to replace the denture crucible 14 later. The analysis sample raw material 146 is overlapped on the top surface of the padding block 145. At this time, the groove on the surface of the padding block 145 is used to limit the position of the analysis sample raw material 146, so that a certain gap is left between the analysis sample raw material 146 and the lower pressing plate 143, so that the upper and lower edges of the analysis sample raw material 146 can be better heated evenly. At the same time, the docking column 144 on the bottom surface of the lower pressing plate 143 is docked into the interior of the docking groove 142, and the position of the lower pressing plate 143 is limited, so that it is convenient to replace the lower pressing plate 143 later. When the denture crucible 14 is positioned, the temperature controller 113 is lowered by the lifting device 112. At this time, the temperature controller 113 is docked with the docking limit column 12. At this time, the docking limit column 121 is inserted into the interior of the temperature controller 113, and the docking limit column 12 is used to raise and support the position of the temperature controller 113. At this time, the semicircular docking plate 124 is rotated by the electric motor 123, and the outer surface of the semicircular docking plate 124 is inserted into the interior of the temperature controller 113 to limit the position of the temperature controller 113, so as to avoid slight shaking during the lifting and lowering of the temperature controller 113, which may cause the analytical sample raw material 146 inside the denture crucible 14 to fall over.

[0031] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A denture experimental thermogravimetric analysis furnace, comprising a limiting platform (111), a denture analysis limiting ring (13) fixedly mounted on the outer surface of the top of the limiting platform (111), and a denture crucible (14) movably sleeved on the inner wall of the denture analysis limiting ring (13), characterized in that: An analysis sample raw material (146) is movably sleeved on the inner wall surface of the denture crucible (14); a temperature controller (113) is fixedly mounted on the output end of the limiting platform (111), a docking sealing ring (114) is fixedly mounted on the bottom surface of the temperature controller (113), and a fan (116) is fixedly mounted on one side surface of the limiting platform (111) and at the edge of the denture analysis limiting ring (13); A plurality of sets of sleeves (131) are fixedly mounted on the inner wall surface of the denture analysis limit ring (13); a downward pressure sleeve (134) is movably sleeved on the outer surface of the top of the sleeve (131); a downward pressure limit plate (135) is fixedly connected to the top surface of the downward pressure sleeve (134); a push block (138) movably overlapped on the bottom surface of the downward pressure sleeve (134) is movably sleeved on one side surface of the sleeve (131); a pullback elastic wire (137) arranged on the outer surface of the push block (138) is fixedly connected on the inner wall surface of the sleeve (131); an extrusion joint (1310) is arranged on the top surface of the push block (138); and a denture overlap platform (1311) is arranged on the inner wall surface of the denture analysis limit ring (13).

2. The denture experimental thermogravimetric analysis furnace according to claim 1, characterized in that: A limiting groove (141) is provided on the top surface of the denture crucible (14), a docking groove (142) is provided on the inner wall surface of the limiting groove (141), and the outer surface of the pushing block (138) is movably sleeved on the outer surface of the denture crucible (14).

3. The denture experimental thermogravimetric analysis furnace according to claim 2, characterized in that: A lower pressing plate (143) is movably sleeved on the inner wall surface of the limiting groove (141), and a docking column (144) movably sleeved on the inner wall surface of the docking groove (142) is fixedly connected to the bottom surface of the lower pressing plate (143).

4. The denture experimental thermogravimetric analysis furnace according to claim 3, characterized in that: A padding block (145) is fixedly connected to the top surface of the lower pressing plate (143), and the outer surface of the analysis sample raw material (146) is movably overlapped on the top surface of the padding block (145).

5. The denture experimental thermogravimetric analysis furnace according to claim 4, characterized in that: A docking limit column 1 (12) is fixedly installed on the top surface of the limit platform (111) and located at the edge positions of the denture analysis limit ring (13). A docking limit column 2 (121) is fixedly connected to the top surface of the docking limit column 1 (12).

6. The denture experimental thermogravimetric analysis furnace according to claim 5, characterized in that: A fitting housing (122) is fixedly mounted on the top surface of the first docking limit column (12) and located at a side edge of the second docking limit column (121); an electric motor (123) is fixedly mounted on the bottom inner wall of the fitting housing (122); and a semicircular docking plate (124) is fixedly connected to the output end of the electric motor (123).

7. The denture experimental thermogravimetric analysis furnace according to claim 1, characterized in that: A limiting plate (132) is provided on one side surface of the sleeve (131), a limiting strip (133) is provided on the inner wall surface of the sleeve (131), and the outer surface of the pushing block (138) is movably overlapped on the outer surface of the limiting plate (132).

8. The denture experimental thermogravimetric analysis furnace according to claim 1, characterized in that: An R-shaped fillet 1 (136) is provided on one side surface of the pressing sleeve (134), and an R-shaped fillet 2 (139) is provided on the outer side surface of one end of the pushing block (138).

9. The denture experimental thermogravimetric analysis furnace according to claim 1, characterized in that: A lifter (112) is provided on the outer surface of the limiting platform (111), and the outer surface of the temperature controller (113) is provided on the inner wall of the lifter (112). The outer surface of the temperature controller (113) is movably overlapped on the upper and lower surfaces of the semicircular docking plate (124).

10. The denture experimental thermogravimetric analysis furnace according to claim 1, characterized in that: A lap support plate (11) is fixedly connected to the bottom surface of the limit platform (111), a data analyzer (115) is fixedly installed on the top surface of the lap support plate (11) and at a side edge position of the limit platform (111), a limit docking groove (a1) is provided on the bottom surface of the docking sealing ring (114), and a lower pressure arm (a2) is provided on the inner wall surface of the docking sealing ring (114) and at a side edge position of the limit docking groove (a1).

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