阅读说明：本技术 差热分析仪 (Differential thermal analyzer ) 是由 张倩 李建涛 李卓 于 2021-08-16 设计创作，主要内容包括：本发明涉及一种差热分析仪领域,尤其涉及差热分析仪。要解决的技术问题是：现有装置只能对相邻的两组样品进行对比实验。技术方案为：差热分析仪,包括第一机架、第一直角架和提取组件等；第一机架上方后侧安装有两组第一直角架。本发明使用时实现了自动将多组坩埚中的任意一组放入至差热分析仪中的任意位置,即实现了自动将任意两组样品进行对比实验,提高了实验数据的多样性,同时无需人工更换对照组,降低安全隐患的同时提高了效率,同时在实验过程中可减小热量散失,杜绝出现实验温度低于额定值的现象,避免影响实验数据,同时自动对坩埚的温度调整到额定温度,避免对实验产生影响。(The invention relates to the field of differential thermal analyzers, in particular to a differential thermal analyzer. The technical problem to be solved is as follows: the prior device can only carry out comparison experiments on two adjacent groups of samples. The technical scheme is as follows: the differential thermal analyzer comprises a first rack, a first right-angle rack, an extraction assembly and the like; two groups of first right-angle brackets are arranged on the rear side above the first rack. When the device is used, any one of the plurality of groups of crucibles is automatically placed at any position in the differential thermal analyzer, namely, the automatic comparison experiment of any two groups of samples is realized, the diversity of experimental data is improved, meanwhile, the comparison group does not need to be replaced manually, the potential safety hazard is reduced, the efficiency is improved, meanwhile, the heat loss can be reduced in the experiment process, the phenomenon that the experimental temperature is lower than the rated value is avoided, the influence on the experimental data is avoided, meanwhile, the temperature of the crucibles is automatically adjusted to the rated temperature, and the influence on the experiment is avoided.)

1. The differential thermal analyzer comprises a first rack (1) and a first right-angle rack (2); two groups of first right-angle brackets (2) are arranged on the rear side above the first rack (1); the method is characterized in that: the device also comprises an exchange component and an extraction component; the middle part of the upper surface of the first frame (1) is connected with an exchange assembly; the rear part of the exchange component is connected with an extraction component;

the exchange assembly comprises a fifth support (201), a sixth support (202), a first driving piece (203), a first connecting block (204) and a mechanical arm (2011); the middle front part of the first frame (1) is connected with a fifth supporting piece (201); a sixth supporting piece (202) is connected to the middle rear part of the first frame (1); a first driving piece (203) is connected to the upper part of the fifth supporting piece (201); the output end of the first driving piece (203) is connected with a first connecting block (204); the first connecting block (204) is connected with a mechanical arm (2011) through a driving mechanism; the end part of the mechanical arm (2011) is connected with a rotatable double-clamping mechanical arm;

the extraction assembly comprises a first shell (2016), a first partition plate (2017), a first limiting block (2018), a first bearing piece (2019), a first guide rail block (2020) and a fourth driving piece (2021); a first shell (2016) is connected to the rear part of the fifth support member (201); the upper part of the sixth support (202) is connected with the first shell (2016); a first clapboard (2017) is connected to the upper part of the first shell (2016); the middle rear part of the upper surface of the first clapboard (2017) is connected with two groups of symmetrical first limiting blocks (2018) through torsion rotating shafts; two groups of first limit blocks (2018) turn over to open and close the first partition (2017); a first guide rail block (2020) is connected to the lower part of the inner part of the first shell (2016); a first bearing piece (2019) is connected to the rear part in the first shell (2016); a fourth driving part (2021) is connected to the middle part of the first guide rail block (2020); the front part of the fourth driving piece (2021) is connected with a mechanical clamping device.

2. The differential thermal analyzer according to claim 1, characterized in that: the driving mechanism comprises a second connecting block (205), a third connecting block (206), a second driving piece (207), a first straight gear (208), a second straight gear (209) and a connecting plate (2010); the rear end face of the first connecting block (204) is connected with a second connecting block (205); the upper part of the first connecting block (204) is connected with a third connecting block (206); the inside of the second connecting block (205) is connected with a connecting plate (2010) through a round rod; the other end of the connecting plate (2010) is connected with a mechanical arm (2011) through a round rod; a second driving piece (207) is connected above the third connecting block (206); the output end of the lower part of the second driving piece (207) is connected with a first straight gear (208); a second straight gear (209) is rotatably connected to the inner side of the mechanical arm (2011); the first spur gear (208) is meshed with a second spur gear (209).

3. The differential thermal analyzer according to claim 1, characterized in that: the rotatable double-clamping manipulator comprises a third driving piece (2012), a linkage plate (2013), a first electric clamp (2014) and a second electric clamp (2015); the rear part of the mechanical arm (2011) is connected with a third driving piece (2012); the output end of the lower part of the third driving piece (2012) is connected with a linkage plate (2013); the lower part of the linkage plate (2013) is connected with a second electric clamp (2015); and a first motorized clamp (2014).

4. The differential thermal analyzer according to claim 1, characterized in that: the mechanical clamping device comprises a fifth driving piece (2022), a first sliding sleeve block (2023), a first sliding block (2024), a third electric clamp (2025) and a second limiting block (2026); the upper front part of the fourth driving piece (2021) is connected with a fifth driving piece (2022); the upper rear part of the fourth driving part (2021) is connected with a first sliding sleeve block (2023); the upper part of the fifth driving piece (2022) is connected with a first sliding block (2024); the first sliding sleeve block (2023) is internally connected with a first sliding block (2024); the upper part of the first sliding block (2024) is connected with a third electric clamp (2025).

5. The differential thermal analyzer according to claim 4, characterized in that: the electric clamp further comprises a second limiting block (2026), and a group of second limiting blocks (2026) are hinged to the two ends of the front portion of the third electric clamp (2025).

6. The differential thermal analyzer according to claim 1, characterized in that: the heat insulation device is characterized by further comprising a heat insulation assembly, wherein the heat insulation assembly is positioned in a gap between the two groups of first right-angle frames (2), and comprises a first top plate (301) and first heat insulation cloth (302); the upper parts of the two groups of first right-angle frames (2) are connected with first top plates (301); the outer edge of the lower surface of the first top plate (301) is connected with a first heat insulation cloth (302).

7. The differential thermal analyzer according to claim 6, characterized in that: the heat preservation component also comprises a seventh supporting piece (303), a first base plate (304), a sixth driving piece (305), a first driving wheel (306), a first rope (307), an eighth supporting piece (308), a seventh driving piece (309), a second driving wheel (3010), a second rope (3011) and a third limiting block (3012); the middle part of the upper surface of the first top plate (301) is connected with a seventh supporting piece (303); an eighth supporting piece (308) is connected to the middle front part of the upper surface of the first top plate (301); a third limiting block (3012) is connected to the front side of the upper surface of the first top plate (301); a first cushion plate (304) is connected to the upper part of the seventh supporting piece (303); a sixth driving piece (305) is connected to the upper part of the first base plate (304); the output end of the lower part of the sixth driving piece (305) is connected with a first driving wheel (306); the middle part of the first transmission wheel (306) is connected with nine groups of first ropes (307); the vertical parts below the nine groups of first ropes (307) are connected with the first heat-insulating cloth (302); a seventh driving piece (309) is connected to the upper part of the eighth supporting piece (308); the output end of the lower part of the seventh driving piece (309) is connected with a second driving wheel (3010); two groups of second ropes (3011) are connected with the middle part of the second transmission wheel (3010); the middle upper parts of the two groups of second ropes (3011) are connected with a third limiting block (3012); the inclined parts below the two groups of second ropes (3011) are connected with a first heat insulation cloth (302).

8. The differential thermal analyzer according to claim 5, characterized in that: the first heat insulation cloth (302) is sewed with a rope buckle; the rope passes through the rope fastener to be connected with the lower part of the heat insulation cloth.

9. The differential thermal analyzer according to claim 7, characterized in that: the cooling device is characterized by further comprising a cooling assembly, wherein the cooling assembly is positioned above the right part of the first rack (1), and comprises a ninth supporting piece (401), an eighth driving piece (402), a first conduit (403), a first control valve (404), a second conduit (405), a third conduit (406), a fourth conduit (407) and a first refrigerating piece (408); a ninth supporting piece (401) is connected to the middle right of the upper surface of the first frame (1); the upper right rear part of the first shell (2016) is connected with a third conduit (406); the upper left rear part of the first shell (2016) is connected with a fourth conduit (407); the front lower part of the first shell (2016) is connected with a first refrigerating piece (408); an eighth driving piece (402) is connected to the middle of the upper surface of the ninth supporting piece (401); the right middle part of the eighth driving piece (402) is connected with a first conduit (403); the upper right part of the eighth driving piece (402) is connected with a third conduit (406); a first control valve (404) is connected to the middle left part of the first conduit (403); a second conduit (405) is connected to the first conduit (403) below the first control valve (404).

Technical Field

The invention relates to the field of differential thermal analyzers, in particular to a differential thermal analyzer.

Background

A differential thermal analyzer is an instrument that measures the temperature difference between a substance and a reference as a function of temperature at a programmed temperature. The device consists of a program control part, a furnace body and a recorder, and can be controlled by a computer and print an experimental report.

However, the existing sample placing and fixing device for the differential thermal analyzer has no function of batch contrast experiment, and can only carry out contrast experiment on two adjacent samples, so that experimental data lack of richness, and when the high-temperature reference sample is replaced manually, great potential safety hazards exist and the efficiency is influenced.

In view of the above, it is necessary to develop a differential thermal analyzer to overcome the above problems.

Disclosure of Invention

In order to overcome the shortcoming that the sample placing and fixing device for the existing differential thermal analyzer does not have the function of batch contrast experiment, the technical problem to be solved is: the prior device can only carry out comparison experiments on two adjacent groups of samples.

The technical scheme is as follows: the differential thermal analyzer comprises a first rack, a first right-angle rack, a second rack, an exchange assembly and an extraction assembly; two groups of first right-angle brackets are arranged on the rear side above the first rack; the middle part of the upper surface of the first frame is connected with an exchange assembly; the rear part of the exchange component is connected with an extraction component;

the exchange assembly comprises a fifth supporting piece, a sixth supporting piece, a first driving piece, a first connecting block and a mechanical arm; the middle front part of the first frame is connected with a fifth supporting piece; the middle rear part of the first frame is connected with a sixth supporting piece; the upper part of the fifth supporting piece is connected with a first driving piece; the output end of the first driving piece is connected with a first connecting block; the first connecting block is connected with a mechanical arm through a driving mechanism; the end part of the mechanical arm is connected with a rotatable double-clamping mechanical arm;

the extraction assembly comprises a first shell, a first clapboard, a first limiting block, a first bearing piece, a first guide rail block and a fourth driving piece; the rear part of the fifth supporting piece is connected with a first shell; the upper part of the sixth supporting piece is connected with the first shell; the upper part of the first shell is connected with a first clapboard; the middle rear part of the upper surface of the first clapboard is connected with two groups of symmetrical first limiting blocks through a torsion rotating shaft; the two groups of first limiting blocks turn over to open and close the first partition plates; a first guide rail block is connected to the lower part of the inner part of the first shell; the rear part in the first shell is connected with a first bearing piece; the middle part of the first guide rail block is connected with a fourth driving part; the front part of the fourth driving piece is connected with a mechanical clamping device.

More preferably, the driving mechanism comprises a second connecting block, a third connecting block, a second driving piece, a first straight gear, a second straight gear and a connecting plate; the rear end face of the first connecting block is connected with a second connecting block; the upper part of the first connecting block is connected with a third connecting block; the inside of the second connecting block is connected with a connecting plate through a round rod; the other end of the connecting plate is connected with the mechanical arm through a round rod; a second driving piece is connected above the third connecting block; the output end of the lower part of the second driving piece is connected with a first straight gear; the inner side of the mechanical arm is rotatably connected with a second straight gear; the first spur gear is meshed with a second spur gear.

More preferably, the rotatable double-clamping manipulator comprises a third driving piece, a linkage plate, a first electric clamp and a second electric clamp; the rear part of the mechanical arm is connected with a third driving piece; the output end of the lower part of the third driving piece is connected with a linkage plate; the lower part of the linkage plate is connected with a second electric clamp; and a first motorized clamp.

More preferably, the mechanical clamping device comprises a fifth driving element, a first sliding sleeve block, a first sliding block, a third electric clamp and a second limiting block; the upper front part of the fourth driving piece is connected with a fifth driving piece; the upper rear part of the fourth driving part is connected with a first sliding sleeve block; the upper part of the fifth driving piece is connected with a first sliding block; the first sliding sleeve is internally connected with a first sliding block; the upper part of the first sliding block is connected with a third electric clamp.

More preferably, the clamp further comprises a second limiting block, and a group of second limiting blocks are hinged to two ends of the front portion of the third electric clamp.

More preferably, the heat insulation device further comprises a heat insulation assembly, wherein the heat insulation assembly is positioned in a gap between the two groups of first right-angle frames and comprises a first top plate and first heat insulation cloth; the upper parts of the two groups of first right-angle brackets are connected with first top plates; the outer edge of the lower surface of the first top plate is connected with a first heat insulation cloth.

More preferably, the heat preservation assembly further comprises a seventh supporting piece, a first base plate, a sixth driving piece, a first driving wheel, a first rope, an eighth supporting piece, a seventh driving piece, a second driving wheel, a second rope and a third limiting block; the middle part of the upper surface of the first top plate is connected with a seventh supporting piece; an eighth supporting piece is connected to the middle front part of the upper surface of the first top plate; a third limiting block is connected to the front part of the upper surface of the first top plate; the upper part of the seventh supporting piece is connected with a first base plate; the upper part of the first base plate is connected with a sixth driving piece; the output end of the lower part of the sixth driving piece is connected with a first driving wheel; the middle part of the first driving wheel is connected with nine groups of first ropes; the vertical parts below the nine groups of first ropes are connected with the first heat-insulating cloth; the upper part of the eighth supporting piece is connected with a seventh driving piece; the output end of the lower part of the seventh driving piece is connected with a second driving wheel; the middle part of the second transmission wheel is connected with two groups of second ropes; the middle upper parts of the two groups of second ropes are connected with a third limiting block; the inclined parts below the two groups of second ropes are connected with first heat insulation cloth.

More preferably, the first heat insulation cloth is sewed with a rope fastener; the rope passes through the rope fastener to be connected with the lower part of the heat insulation cloth.

More preferably, the refrigerator further comprises a cooling assembly, wherein the cooling assembly is positioned above the right part of the first frame and comprises a ninth supporting piece, an eighth driving piece, a first conduit, a first control valve, a second conduit, a third conduit, a fourth conduit and a first refrigerating piece; a ninth supporting piece is connected to the middle right side of the upper surface of the first frame; the upper right rear part of the first shell is connected with a third conduit; the upper left rear part of the first shell is connected with a fourth conduit; the front lower part of the first shell is connected with a first refrigerating piece; the middle part of the upper surface of the ninth supporting piece is connected with an eighth driving piece; the right middle part of the eighth driving piece is connected with a first conduit; the upper right part of the eighth driving piece is connected with a third conduit; the middle left part of the first conduit is connected with a first control valve; the first conduit is connected with a second conduit below the first control valve.

The invention has the beneficial effects that:

firstly, any one of a plurality of groups of crucibles is automatically placed at any position in a differential thermal analyzer, so that the automatic comparison experiment of any two groups of samples is realized, the diversity of experimental data is improved, meanwhile, the comparison group does not need to be replaced manually, the potential safety hazard is reduced, and the efficiency is improved;

secondly, heat loss can be reduced in the experimental process, the phenomenon that the experimental temperature is lower than a rated value is avoided, and experimental data are prevented from being influenced;

and thirdly, the crucible after the experiment is automatically and quickly cooled, and meanwhile, the temperature of the crucible is automatically adjusted to the rated temperature, so that the experiment is prevented from being influenced.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a right side view of the present invention;

FIG. 3 is a schematic view of the present invention with a differential thermal analyzer positioned;

FIG. 4 is a right side view of the exchange assembly of the present invention;

FIG. 5 is a schematic view of a first partial body configuration of an extraction assembly of the present invention;

FIG. 6 is a schematic view of a second partial body configuration of an extraction assembly of the present invention;

FIG. 7 is a perspective view of a third portion of an extraction assembly of the present invention;

FIG. 8 is a schematic perspective view of the thermal insulation assembly of the present invention;

FIG. 9 is an enlarged view of the invention at A;

FIG. 10 is a schematic perspective view of a cooling assembly according to the present invention;

figure 11 is a cross-sectional view of a first refrigeration member of the invention.

The parts are labeled as follows: 1-a first frame, 2-a first right-angle stand, 201-a fifth support, 202-a sixth support, 203-a first drive, 204-a first connecting block, 205-a second connecting block, 206-a third connecting block, 207-a second drive, 208-a first right-angle gear, 209-a second straight-angle gear, 2010-a connecting plate, 2011-a mechanical arm, 2012-a third drive, 2013-a linkage plate, 2014-a first electric clamp, 2015-a second electric clamp, 2016-a first housing, 2017-a first partition, 2018-a first stopper, 2019-a first bearing, 2020-a first guide rail block, 2021-a fourth drive, 2022-a fifth drive, 2023-a first sliding sleeve block, 2024-a first sliding block, 2025-a third electric clamp, 2026-second stopper, 301-first top plate, 302-first thermal cloth, 303-seventh support, 304-first pad, 305-sixth driving element, 306-first driving wheel, 307-first rope, 308-eighth support, 309-seventh driving element, 3010-second driving wheel, 3011-second rope, 3012-third stopper, 401-ninth support, 402-eighth driving element, 403-first conduit, 404-first control valve, 405-second conduit, 406-third conduit, 407-fourth conduit, 408-first refrigerating element.

Detailed Description

The following description is only a preferred embodiment of the present invention, and does not limit the scope of the present invention.

Example 1

The differential thermal analyzer is shown in figures 1-3 and comprises a first rack 1, a first right-angle rack 2, an exchange assembly and an extraction assembly; two groups of first right-angle brackets 2 are arranged on the rear side above the first rack 1; the middle part of the upper surface of the first frame 1 is connected with an exchange component; the rear part of the exchange component is connected with an extraction component.

As shown in fig. 4, the exchanging assembly includes a fifth supporting member 201, a sixth supporting member 202, a first driving member 203, a first connecting block 204, a second connecting block 205, a third connecting block 206, a second driving member 207, a first spur gear 208, a second spur gear 209, a connecting plate 2010, a mechanical arm 2011, a third driving member 2012, a linkage plate 2013, a first electric clamp 2014, and a second electric clamp 2015; a fifth supporting member 201 is fixedly connected to the front part of the first frame 1; a sixth supporting piece 202 is fixedly connected to the middle rear part of the first frame 1; a first driving member 203 is fixedly connected to the upper part of the fifth supporting member 201; a first connecting block 204 is fixedly connected to the rear part of the first driving member 203; the rear end face of the first connecting block 204 is fixedly connected with a second connecting block 205; the upper rear part of the first connecting block 204 is fixedly connected with a third connecting block 206; the inside of the second connecting block 205 is rotatably connected with a connecting plate 2010 through a round rod; a second driving member 207 is fixedly connected to the upper rear part of the third connecting block 206; a first straight gear 208 is fixedly connected with the output end of the lower part of the second driving piece 207; the first spur gear 208 is meshed with a second spur gear 209; a mechanical arm 2011 is fixedly connected to the middle of the second straight gear 209; the connecting plate 2010 is rotatably connected with a mechanical arm 2011 through a round rod; a third driving part 2012 is fixedly connected to the rear upper part of the mechanical arm 2011; the output end of the lower part of the third driving piece 2012 is fixedly connected with a linkage plate 2013; a second electric clamp 2015 is fixedly connected to the lower rear part of the linkage plate 2013; the lower front part of the linkage plate 2013 is fixedly connected with a first electric clamp 2014.

As shown in fig. 5-7, the extracting assembly includes a first housing 2016, a first partition 2017, a first stopper 2018, a first receiving member 2019, a first rail block 2020, a fourth driving member 2021, a fifth driving member 2022, a first sliding sleeve block 2023, a first sliding block 2024, a third electric clamp 2025, and a second stopper 2026; a first shell 2016 is fixedly connected to the upper rear portion of the fifth supporting member 201; the middle upper part of the sixth supporting member 202 is fixedly connected with the first casing 2016; a first clapboard 2017 is fixedly connected to the upper part of the first shell 2016; two groups of first limiting blocks 2018 are fixedly connected to the middle rear part of the upper surface of the first partition 2017 through torsion rotating shafts; a first guide rail block 2020 is fixedly connected to the lower part of the inside of the first housing 2016; a first bearing member 2019 is fixedly connected to the middle rear part in the first shell 2016; a fourth driving part 2021 is slidably connected to the middle part of the first guide rail block 2020; the upper front part of the fourth driving element 2021 is fixedly connected with a fifth driving element 2022; the upper rear part of the fourth driving part 2021 is fixedly connected with a first sliding sleeve block 2023; a first sliding block 2024 is fixedly connected to the upper part of the fifth driving element 2022; the first sliding sleeve block 2023 is internally and slidably connected with the first sliding block 2024; a third electric clamp 2025 is fixedly connected to the upper part of the first slide block 2024; a group of second limit blocks 2026 are rotatably connected to both ends of the front part of the third electric clamp 2025; twenty groups of cavities are arranged in the first bearing part 2019 in a rectangular array and are arranged in two rows; twenty groups of crucibles can be displayed, and a gap exists between the bottom of each crucible and the first bearing part 2019, so that the bent parts of the two groups of second limiting blocks 2026 can smoothly move to the bottom of each crucible; the middle upper part of the second limiting block 2026 is rotatably connected with the third electric clamp 2025 through a round rod; when the third electric clamp 2025 moves upward, the two groups of second limit blocks 2026 are closed to the middle part under the action of gravity.

In preparation for work, the device is placed on a horizontal plane, a power supply is switched on, the external controller control device is operated to start control, twenty groups of crucibles with samples are placed into twenty groups of cavities of the first bearing part 2019, then the third driving part 2012 drives the linkage plate 2013 to rotate, the linkage plate 2013 drives the first electric clamp 2014 and the second electric clamp 2015 to circularly move, the linkage plate 2013 drives the first electric clamp 2014 to be far away from the upper parts of the two groups of first limit blocks 2018, at the moment, one group of crucibles are positioned in the front end of the third electric clamp 2025, then the third electric clamp 2025 clamps 2025 clamp the upper parts of the crucibles, then the fifth driving part 2022 drives the first slider 2024 to drive the third electric clamp 2025 to move upwards, the first slider 2024 slides upwards in the first sliding sleeve block 2023 to move the crucibles upwards, and in the process, the lower parts of the two groups of second limit blocks 2026 are relatively close under the action of gravity, the bent parts at the lower parts of the two groups of second limit blocks 2026 are moved to the bottom of the crucible to provide a supporting force for the bottom of the crucible, so as to improve the stability, the crucible is continuously upward, the two groups of second limit blocks 2026 are pushed against the two groups of first limit blocks 2018 on the first partition plate 2017, so as to enable the two groups of first limit blocks 2018 to be opened upward, then the first electric clamp 2014 is moved to the upper part of the dry pot and clamps the dry pot, then the crucible is driven to be separated from the first shell 2016 on the sixth support member 202, then the first driving member 203 on the fifth support member 201 pushes the first connecting block 204 to move, the first connecting block 204 drives the components related to the first connecting block to move, so as to put the crucible into the differential thermal analyzer, the front and back positions of the crucible in the differential thermal analyzer can be controlled by the first driving member 203, meanwhile, the second driving member 207 on the third connecting block 206 drives the first spur gear 208 to rotate, the first spur gear 208 drives the second spur gear 209 to rotate, the second spur gear 209 drives the mechanical arm 2011 to move, so that the mechanical arm 2011 drives the connecting plate 2010 to move on the second connecting block 205, the swinging direction of the mechanical arm 2011 is controlled by the second driving piece 207, the left and right positions of the crucibles in the differential thermal analyzer can be controlled by the first driving piece 203, steel is placed at a specified position in the differential thermal analyzer, meanwhile, the fourth driving piece 2021 slides left and right on the first guide rail block 2020, the fourth driving piece 2021 drives the components related to the fourth driving piece 2021 to move left and right, the clamping part of the second electric clamp 2015 can move back and forth, so that the crucibles at any positions in the first bearing part 2019 can be clamped, the crucibles at any positions in the 2019 can be placed at any positions in the differential thermal analyzer for a comparison experiment, and when the crucible is used, any one group in multiple groups of crucibles can be automatically placed at any position in the differential thermal analyzer, the automatic contrast experiment of arbitrary two sets of samples has been realized promptly, has improved experimental data's variety, need not artifical the change control group simultaneously, has improved efficiency when reducing the potential safety hazard.

Example 2

As shown in fig. 8-9, the heat preservation device is further included, the heat preservation device is located inside the two groups of first supporting members 1, and the heat preservation device includes a first top plate 301, a first heat insulation cloth 302, a seventh supporting member 303, a first backing plate 304, a sixth driving member 305, a first driving wheel 306, a first rope 307, an eighth supporting member 308, a seventh driving member 309, a second driving wheel 3010, a second rope 3011, and a third limiting block 3012; the upper parts of the two groups of first right-angle brackets 2 are fixedly connected with first top plates 301; a first heat insulation cloth 302 is fixedly connected to the outer edge of the lower surface of the first top plate 301; a seventh supporting member 303 is fixedly connected to the middle of the upper surface of the first top plate 301; an eighth supporting member 308 is fixedly connected to the front middle of the upper surface of the first top plate 301; a third limiting block 3012 is fixedly connected to the front side of the upper surface of the first top plate 301; a first pad plate 304 is fixedly connected to the upper part of the seventh supporting member 303; a sixth driving member 305 is fixedly connected to the upper portion of the first base plate 304; a first driving wheel 306 is fixedly connected to the lower output end of the sixth driving member 305; nine groups of first ropes 307 are fixedly connected to the middle part of the first driving wheel 306; the first heat insulation cloth 302 is sewed with a rope buckle; the rope passes through the rope fastener to be connected with the lower part of the heat insulation cloth; the first insulating cloth 302 may be tightened over the nine sets of first cords 307 and the two sets of second cords 3011; a seventh driving member 309 is fixedly connected to the upper portion of the eighth supporting member 308; a second driving wheel 3010 is fixedly connected to the lower output end of the seventh driving element 309; two groups of second ropes 3011 are fixedly connected to the middle part of the second transmission wheel 3010; the middle upper parts of the two groups of second ropes 3011 are connected with a third limiting block 3012 in a sliding manner; the inclined parts below the two groups of second ropes 3011 are connected with the first heat insulation cloth 302 in a sliding mode.

On the basis of embodiment 1, in preparation for work, the sixth driving element 305 on the first pad 304 connected to the seventh supporting element 303 drives the first driving wheel 306 to rotate, the first driving wheel 306 rotates to wind up the nine sets of first ropes 307, so that the nine sets of first ropes 307 drive the lower portion of the first thermal insulation cloth 302 to retract upwards, then the differential thermal analyzer is placed under the first top plate 301, then the sixth driving element 305 drives the first driving wheel 306 to rotate reversely, so that the nine sets of first ropes 307 are loosened, then the first thermal insulation cloth 302 moves downwards under the action of gravity to return to the original position, the differential thermal analyzer is wrapped, when the exchanging assembly prepares to place the sample into the differential thermal analyzer, the seventh driving element 309 on the eighth supporting element 308 drives the second driving wheel 3010 to rotate, the second driving wheel 3010 winds up the two sets of second ropes 3011 on the third limiting block 3012, so that the two sets of second ropes 3011 pull the lower portion of the adjacent edge of the first thermal insulation cloth 302 to move upwards, therefore, the adjacent edges of the first heat insulation cloth 302 are obliquely opened upwards, when the sample placing operation of the exchange assembly is completed, the seventh driving piece 309 drives the second driving wheel 3010 to rotate reversely, the two groups of second ropes 3011 are loosened, then the first heat insulation cloth 302 moves back to the original position under the action of gravity, the differential thermal analyzer is wrapped again, in the experiment process, the heat loss can be reduced by the first heat insulation cloth 302, and the phenomenon that the experiment temperature is lower than the rated value is avoided.

Example 3

As shown in fig. 10-11, the cooling device is further included, and the cooling device is located above the middle right portion of the third support 3, and the cooling device includes a ninth support 401, an eighth driving member 402, a first conduit 403, a first control valve 404, a second conduit 405, a third conduit 406, a fourth conduit 407, and a first cooling member 408; a ninth supporting member 401 is fixedly connected to the right side of the upper surface of the first frame 1; a third conduit 406 is fixedly connected to the upper right rear part of the first shell 2016; a fourth conduit 407 is fixedly connected to the upper left rear part of the first casing 2016; a first refrigerating piece 408 is fixedly connected to the front lower part of the first shell 2016; an S-shaped cavity is arranged inside the first refrigerating piece 408; the left end and the right end of the first refrigerating piece 408 are both provided with a pipeline interface; an eighth driving piece 402 is fixedly connected to the middle part of the upper surface of the ninth supporting piece 401; a first conduit 403 is fixedly connected to the right middle part of the eighth driving member 402; the upper right part of the eighth driving member 402 is fixedly connected with a third conduit 406; a first control valve 404 is fixedly connected to the middle left part of the first conduit 403; a second conduit 405 is attached to the first conduit 403 below the first control valve 404.

Based on the example 2, after the crucible after the experiment is put back into the first receiving member 2019, the crucible has a certain temperature, the generated hot gas permeates the first housing 2016, then the eighth driving member 402 on the ninth supporting member 401 starts to move, air is conveyed into the first housing 2016 from the first conduit 403 and the third conduit 406, the first housing 2016 carries the hot gas to flow out from the fourth conduit 407 to the external collecting box, meanwhile, the external collecting box is communicated with the second conduit 405, then the first refrigerating member 408 is communicated with the external refrigerating assembly, the first refrigerating member 408 rapidly cools the crucible, meanwhile, the temperature of the adjacent crucible deviates from the rated temperature, at the moment, the first control valve 404 enables the second conduit 405 to be communicated with the eighth driving member 402, then the eighth driving member 402 starts to work, the hot gas in the external collecting box is conveyed into the first housing 2016 again, and thus the temperature of the crucible reaches the rated value in cooperation with the first refrigerating member 408, during the use, the crucible after the experiment is automatically and quickly cooled, and meanwhile, the temperature of the crucible is automatically adjusted to the rated temperature, so that the experiment is prevented from being influenced.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.