Sample tray and tray rack for thermal analysis instrument

Abstract

The invention relates to the technical field of thermal analysis instruments, and particularly discloses a sample tray and a tray rack for a thermal analysis instrument.The sample tray comprises a lower tray rack, an upper tray rack and a tray body, the tray body comprises a sample storage area used for storing samples, and the tray body comprises an inner tray, an outer tray and two holding rods; the two holding rods are symmetrically distributed at the two ends of the inner tray, and the inner tray is detachably connected with the outer tray. The form conversion driving unit can drive the tray storage assembly and the tray body to rotate, the tray body is converted between the sealing state and the cleaning and drying state, the tray body subjected to thermal analysis is converted into the cleaning and drying state, the tray body is washed by the cleaning unit, materials remaining on the tray body are removed, and the cleaning efficiency is improved. The drying unit dries the tray body, so that the tray body can be quickly dried, the dried tray body rotates to a sealed state, and the tray body does not need to be in direct contact with a worker in the cleaning process.

Description

Technical Field

[0001] The invention belongs to the technical field of thermal analysis instruments, and in particular relates to a sample tray and a tray rack for a thermal analysis instrument. Background Art

[0002] Thermal analysis is a technique that measures the relationship between the physical properties of a substance and temperature under program-controlled temperature. It is widely used in physics, chemistry, chemical engineering, metallurgy, geology, building materials, fuel, textiles, food, biology and other fields to study the physical changes, chemical changes and changes in mechanical properties of substances, so as to understand the internal structure, obtain thermodynamic and kinetic data, and provide a theoretical basis for further research.

[0003] Before entering the thermal analysis instrument, the sample needs to be placed inside the tray, and it enters the thermal analysis instrument together with the tray. After completing the thermal analysis, the sample needs to be taken out of the tray. However, after the sample is taken out, some residual materials will adhere to the outer surface of the tray. At present, when using thermal analysis instruments for measurement, most of them use manual cleaning. However, some samples are corrosive or harmful to the human body. When cleaning, it is necessary to avoid direct contact between the sample and the human body. Therefore, the cleaning process needs to be more cautious, but occasionally there will be harm to the human body due to improper cleaning. Therefore, the present application proposes a sample tray and tray rack for thermal analysis instruments. Summary of the invention

[0004] The object of the present invention is to provide a sample tray and a tray rack for a thermal analysis instrument to solve the problems raised by the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: a sample tray and tray rack for a thermal analysis instrument, comprising a lower tray rack, an upper tray rack, and a tray body, wherein the tray body comprises a sample storage area for storing samples, and the tray body comprises an inner tray, an outer tray, and two gripping rods, wherein the two gripping rods are symmetrically distributed at both ends of the inner tray, and the inner tray is detachably connected to the outer tray;

[0006] The lower tray rack and the upper tray rack are aligned vertically, and an inlet and outlet are provided between the lower tray rack and the upper tray rack;

[0007] A pallet storage assembly for storing the pallet body is installed in the lower pallet rack, the pallet storage assembly includes a storage plate, a clamping assembly, and a pallet clamping unit, and the pallet clamping unit is used to clamp or release the pallet body;

[0008] The tray storage assembly is connected to a shape conversion driving unit for driving the tray storage assembly to rotate, and the shape conversion driving unit drives the tray storage assembly and the tray body to rotate, so that the tray body has two states in the lower tray rack and the upper tray rack, namely, a sealed state and a washing and drying state. When the tray body is in the sealed state, the tray body is placed horizontally;

[0009] When the tray body is in the cleaning and drying state, the tray body is in a vertical state, and the sample storage area in the tray body faces the cleaning unit and the drying unit.

[0010] Preferably, the inner tray includes an arc groove and a fan-shaped groove, the arc groove is connected to the fan-shaped groove, and the outer tray is provided with an arc block and a fan-shaped block at the positions corresponding to the arc groove and the fan-shaped groove, respectively. The fan-shaped groove is connected to the annular groove at the bottom, and the fan-shaped block can rotate along the inner wall of the annular groove, and the arc block can rotate along the inner wall of the arc groove.

[0011] Preferably, a positioning ring is provided in the inner tray, the positioning ring is plugged into the outer tray, a first inclined plate is provided at one end of the outer tray close to the inner tray, the other end of the first inclined plate is connected to the second inclined plate, a spring is installed between the first inclined plate and the second inclined plate, the end of the second inclined plate away from the first inclined plate is provided on a slider, the slider cooperates with a track provided on the outer tray, and the slider is connected to the push-pull plate.

[0012] Preferably, a handle is installed on one side of the push-pull plate passing through the outer wall of the outer tray, the push-pull plate is connected to two positioning rods symmetrically distributed about the center line of the first inclined plate, a positioning groove is provided at the position of the positioning ring corresponding to the position of the positioning rod, and a storage box is provided at the position of the inner tray corresponding to the first inclined plate and the second inclined plate, a storage groove is provided on the inner side of the storage box, and an arc structure is provided on the outer wall of the storage box.

[0013] Preferably, a transparent window is provided between the upper tray rack and the lower tray rack, and a lifting door with an opening and closing function is provided at the inlet and outlet.

[0014] Preferably, the tray clamping unit comprises a plurality of crescent bracket blocks, four crescent bracket blocks are arranged in each tray clamping unit, the crescent bracket blocks are arranged in groups of two, the crescent bracket blocks in a group are used to clamp one of the grip rods, the bracket block at the top of the crescent bracket block is arranged in a semicircular shape, a telescopic groove is arranged in the crescent bracket block, and the size of the telescopic groove is less than 180°.

[0015] Preferably, a fan-shaped clamping plate that can rotate around the center line of the grip rod is installed in the telescopic groove, the fan-shaped clamping plate is connected to the transmission gear, the transmission gear is arranged in an arc shape, and its size is less than 180°, the transmission gear is connected to the power gear through tooth meshing, the power gear is connected to the output shaft of the driving motor, the driving motor is arranged on a motor bracket connected to the crescent bracket block, and a group of crescent bracket blocks are arranged on the same lifting plate.

[0016] Preferably, the lifting plate is connected to a telescopic rod for driving it to move in a direction perpendicular to the pallet body, the telescopic rod is connected to the storage plate through a cylinder bracket, a through hole is provided at the position of the storage plate corresponding to the lifting plate, and the lifting plate can move along the inner wall of the through hole.

[0017] Preferably, the cleaning unit includes a water tank, a cleaning pump, a drain pipe, and a storage chamber is provided in the lower tray frame, the bottom of the storage chamber is connected to the drain outlet, the top of the storage chamber is connected to the exhaust port, and valves for controlling the switch are provided at the drain outlet and the exhaust port.

[0018] Preferably, the drying unit includes an air pump, a gas delivery pipeline, and a gas heating mechanism. The gas heating mechanism is used to heat the gas transported in the gas delivery pipeline. The air pump is used to deliver external air into the gas delivery pipeline. The disinfection unit includes a disinfection lamp, which is connected to a controller arranged on the upper tray rack. A unloading power unit is arranged in the storage cavity. The unloading power unit includes a delivery pump. The end of the delivery pipe connected to the delivery pump is horizontally arranged at the bottom of the storage cavity, and the exhaust port of the delivery pipe is aligned with the sewage outlet.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The inner tray and the outer tray of the present invention are connected in a combined manner. During installation, after the arc block and the fan-shaped block are inserted into the inner tray, the position of the outer tray is rotated to allow the fan-shaped block to be stuck in the annular groove. During the rotation, the first inclined plate and the second inclined plate will gradually approach the storage box. With the cooperation of the arc structure on the storage box, the first inclined plate and the second inclined plate will move upward and finally enter the storage groove in the storage box. After entering, the first inclined plate and the second inclined plate will sink, and the push-pull plate will move to the side close to the center of the inner tray, and the connected positioning rod will be inserted into the positioning groove. At this time, the first inclined plate, the second inclined plate, the positioning rod, the storage groove, and the positioning groove restrict each other, and the inner tray and the outer tray cannot rotate relative to each other. The position between the inner tray and the outer tray is locked, and the assembly and disassembly of the tray body are more convenient, and the subsequent maintenance is easier.

[0021] 2. The form conversion drive unit of the present invention can drive the tray storage assembly and the tray body to rotate, so that the tray body can be converted between a sealed state and a cleaned and dried state. After the thermal analysis, the tray body is converted to the cleaned and dried state, and it is flushed by the cleaning unit to remove the materials remaining on the tray body. The drying unit dries the tray body so that it can be dried quickly. The dried tray body is rotated to a sealed state, and then disinfected by a disinfection unit, and then stored. The tray body does not require direct contact by staff during the cleaning process, and the tray body is in a sealed state before the thermal analysis, and the storage environment in this state is relatively stable. The tray body is in a stable state, so that the influence of the tray body on the sample measurement result can be eliminated during measurement.

[0022] 3. The present invention provides a pallet clamping unit in the pallet storage assembly. When the pallet clamping unit is started, the telescopic rod therein drives the crescent bracket and other components to move upward, and finally the center of the bracket at the top of the crescent bracket coincides with the center line of the gripping rod. The driving motor can drive the power gear to rotate, and the engagement between the teeth drives the transmission gear and the sector-shaped card plate to rotate, so that the sector-shaped card plate rotates to the upper area of ​​the gripping rod. Finally, the sector-shaped card plate and the gripping rod cover more than two-thirds of the area of ​​the gripping rod. At this time, the gripping rod is locked by the pallet clamping unit, so that the pallet body is in a stable state between the lower pallet rack and the upper pallet rack, and at the same time, it can rotate together with the pallet storage assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of the lower tray rack and the upper tray rack in the present invention.

[0024] Figure 2 This is a structural schematic diagram of the tray body in the present invention when it is in a cleaning and drying state.

[0025] Figure 3 This is the second structural schematic diagram of the tray body in the present invention when it is in a cleaning and drying state.

[0026] Figure 4 This is a first structural schematic diagram of the tray body in the present invention when it is in a sealed state.

[0027] Figure 5 This is the second structural schematic diagram of the tray body in the present invention when it is in a sealed state.

[0028] Figure 6 This is the third structural schematic diagram of the tray body in the present invention when it is in a sealed state.

[0029] Figure 7 This is a schematic diagram of the structure of the tray clamping unit and the gripping rod in the present invention.

[0030] Figure 8This is the second structural schematic diagram of the tray clamping unit and the gripping rod in the present invention.

[0031] Fig. 9 This is one of the disassembled views of the tray body in the present invention.

[0032] Fig.10 This is the second disassembled view of the tray body in the present invention.

[0033] Fig.11 It is a schematic diagram of the internal structure of the tray body in the present invention.

[0034] Sealed state, cleaned and dried state

[0035] In the figure: 1. Lower pallet rack; 2. Upper pallet rack;

[0036] 3. Tray body; 301. Inner tray; 3011. Arc groove; 3012. Fan-shaped groove; 3013. Positioning ring; 3014. Sample storage area; 3015. Storage box; 3016. Positioning groove; 302. Outer tray; 3021. Arc block; 3022. Fan-shaped block; 3023. First inclined plate; 3024. Second inclined plate; 3025. Push-pull plate; 3026. Positioning rod; 303. Grip rod;

[0037] 4. Transparent window; 5. Lifting door; 6. Tray storage assembly; 601. Clamping assembly; 602. Tray clamping unit; 6021. Crescent bracket block; 6022. Fan-shaped clamping plate; 6023. Transmission gear; 6024. Power gear; 6025. Driving motor; 6026. Lifting plate; 6027. Telescopic rod;

[0038] 7. Shape conversion drive unit; 8. Cleaning unit; 9. Drying unit; 10. Disinfection unit; 11. Sewage outlet; 12. Exhaust outlet; 13. Unloading power unit. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Reference Figure 1-Figure 11A sample tray and tray rack for a thermal analysis instrument include a lower tray rack 1, an upper tray rack 2, and a tray body 3. The tray body 3 includes a sample storage area 3014 for storing samples. Thermal analysis is a technology that measures the relationship between the physical properties of a substance and temperature under program-controlled temperature. Before the thermal analysis instrument works, the sample is placed in the sample storage area 3014 in the tray body 3, and the tray body 3 and the sample storage area 3014 are placed in the thermal analysis instrument together. The temperature is controlled by the thermal analysis instrument, and the performance changes of the sample at different temperatures are measured to obtain various properties of the material.

[0041] Further, such as Figure 9-11 The tray body 3 includes an inner tray 301, an outer tray 302, and two gripping rods 303. The two gripping rods 303 are symmetrically distributed at both ends of the inner tray 301. The inner tray 301 and the outer tray 302 are detachably connected;

[0042] Specifically, the inner tray 301 includes an arc groove 3011 and a fan-shaped groove 3012, the arc groove 3011 is connected to the fan-shaped groove 3012, the arc groove 3011 and the fan-shaped groove 3012 are both centered on the center of the inner tray 301, and the angle of the arc groove 3011 is greater than the angle of the fan-shaped groove 3012, and the outer tray 302 is respectively provided with an arc block 3021 and a fan-shaped block 3022 at the positions corresponding to the arc groove 3011 and the fan-shaped groove 3012. 3022, the fan-shaped groove 3012 is connected to the annular groove at the bottom, the fan-shaped block 3022 can rotate along the inner wall of the annular groove, and the arc block 3021 can rotate along the inner wall of the arc groove 3011. After the arc block 3021 and the fan-shaped block 3022 are inserted into the inner tray 301, the position of the outer tray 302 is rotated to allow the fan-shaped block 3022 to be stuck in the annular groove. At this time, the outer tray 302 and the inner tray 301 cannot move up and down relative to each other, and can only rotate relative to each other;

[0043] More specifically, a positioning ring 3013 is provided in the inner tray 301, and the positioning ring 3013 is plugged with the outer tray 302. A first inclined plate 3023 is provided at one end of the outer tray 302 close to the inner tray 301, and the other end of the first inclined plate 3023 is connected to the second inclined plate 3024. A spring is installed between the first inclined plate 3023 and the second inclined plate 3024, and an end of the second inclined plate 3024 away from the first inclined plate 3023 is provided on a slider, and the slider cooperates with the track provided on the outer tray 302, and the slider is connected to the push-pull plate 3025. A handle is installed on one side of the push-pull plate 3025 passing through the outer wall of the outer tray 302. The push-pull plate 3025 Two positioning rods 3026 are connected and are symmetrically distributed with respect to the center line of the first inclined plate 3023. A positioning groove 3016 is provided at the position of the positioning ring 3013 corresponding to the positioning rod 3026, and a storage box 3015 is provided at the position of the inner tray 301 corresponding to the first inclined plate 3023 and the second inclined plate 3024. A storage groove is provided on the inner side of the storage box 3015, and an arc structure is provided on the outer wall of the storage box 3015. When the first inclined plate 3023 rotates together with the outer tray 302, it will cooperate with the arc structure on the outer wall of the storage box 3015, and the first inclined plate 3023 will move up along the arc structure and finally enter the storage groove.

[0044] Reference Fig.11 After the arc block 3021 and the fan block 3022 are inserted into the inner tray 301, the position of the outer tray 302 is rotated to allow the fan block 3022 to be stuck in the annular groove. During the rotation, the first inclined plate 3023 and the second inclined plate 3024 will gradually approach the storage box 3015. With the cooperation of the arc structure on the storage box 3015, the first inclined plate 3023 and the second inclined plate 3024 will move upward. At this time, the push-pull plate 3025 moves away from the center of the inner tray 301. Then, the first inclined plate 3023 and the second inclined plate 3024 enter the storage box 3015. 15, the storage groove has a certain depth, so after the first inclined plate 3023 enters the storage groove, the push-pull plate 3025 will move to the side close to the center of the inner tray 301, and the positioning rod 3026 connected to it will be inserted into the positioning groove 3016. At this time, the first inclined plate 3023, the second inclined plate 3024, the positioning rod 3026, the storage groove, and the positioning groove 3016 restrict each other, and the inner tray 301 and the outer tray 302 cannot rotate relative to each other. The positions of the inner tray 301 and the outer tray 302 are locked, and the assembly of the tray body 3 is completed;

[0045] Furthermore, the pallet body 3 is placed between the lower pallet rack 1 and the upper pallet rack 2, the lower pallet rack 1 and the upper pallet rack 2 are aligned up and down, a transparent window 4 is provided at a position between the upper pallet rack 2 and the lower pallet rack 1, a transparent plate is installed at the transparent window 4, the situation of the pallet body 3 inside the lower pallet rack 1 and the upper pallet rack 2 can be checked through the transparent window 4, an entrance and an exit are provided between the lower pallet rack 1 and the upper pallet rack 2, a lifting door 5 with an opening and closing function is provided at the position of the entrance and exit; the pallet body 3 enters and exits from the entrance and exit, the lower pallet rack 1, the upper pallet rack 2, the transparent window 4, and the lifting door 5 can form a closed space, the space is used to store the pallet body 3, the pallet body 3 can be flushed, dried, and disinfected in the above space.

[0046] Furthermore, Figure 1-6 As shown, a tray storage assembly 6 for storing a tray body 3 is installed in the lower tray rack 1. The tray storage assembly 6 includes a storage plate, a positioning assembly 601, and a tray clamping unit 602. After the tray body 3 is inserted into the tray storage assembly 6, the positioning assembly 601 acts as a barrier, allowing the maximum depth of entry to be the position where it contacts the tray body 3. In this way, each time the tray body 3 enters the tray storage assembly 6, the tray body 3 needs to move to a point where it cannot move further, which is exactly the point where the tray clamping unit 602 is aligned up and down. Correspondingly, the tray clamping unit 602 is used to fix the relative position of the tray body 3 and the tray storage assembly 6 or to separate the two.

[0047] Specifically, the tray clamping unit 602 includes a plurality of crescent bracket blocks 6021, and each tray clamping unit 602 is provided with four crescent bracket blocks 6021. The crescent bracket blocks 6021 are grouped in pairs, and the crescent bracket blocks 6021 in a group are used to clamp one of the gripping rods 303. The bracket block at the top of the crescent bracket block 6021 is set in a semicircular shape, so that it can align with the gripping rod 303 during its up and down movement. A telescopic groove is provided in the crescent bracket block 6021, and the size of the telescopic groove is less than 180°. A fan-shaped card plate 6022 that can rotate around the center line of the gripping rod 303 is installed in the telescopic groove, and the fan-shaped card plate 6022 is connected to the transmission gear 6023. It should be noted that the transmission gear The wheel 6023 is set to an arc shape, and its size is less than 180°. The transmission gear 6023 is connected to the power gear 6024 through tooth meshing. The power gear 6024 is connected to the output shaft of the driving motor 6025. The driving motor 6025 is set on a motor bracket connected to the crescent bracket block 6021. A group of crescent bracket blocks 6021 are set on the same lifting plate 6026. The lifting plate 6026 is connected to a telescopic rod 6027 for driving it to move in a direction perpendicular to the tray body 3. The telescopic rod 6027 is connected to the storage plate through a cylinder bracket. It should be noted that a through hole is set at the position of the storage plate corresponding to the lifting plate 6026, and the lifting plate 6026 can move along the inner wall of the through hole.

[0048] Furthermore, the tray storage assembly 6 is connected to a shape conversion driving unit 7 for driving the rotation thereof, and the shape conversion driving unit 7 drives the tray storage assembly 6 and the tray body 3 to rotate, so that the tray body 3 has two states in the lower tray frame 1 and the upper tray frame 2, namely, a sealed state and a washing and drying state. When the tray body 3 is in the sealed state, the tray body 3 is placed horizontally, wherein Figure 4-6 It is a structural diagram when the tray body 3 is in a sealed state. At this time, the tray body 3 is placed stably and is in a closed space to avoid the influence of the external environment. Before thermal analysis, the storage environment in the sealed state can keep the tray body 3 in a stable state. There are fewer problems from the tray body 3 during the experiment. In this state, it can be disinfected by the disinfection unit 10.

[0049] Specifically, when the tray body 3 is in the cleaning and drying state, the tray body 3 is in a vertical state, and the sample storage area 3014 in the tray body 3 faces the cleaning unit 8 and the drying unit 9;

[0050] It should be noted that the cleaning unit 8 includes a water tank, a cleaning pump, and a drain pipe, the drain pipe is aligned with the sample storage area 3014, and a storage chamber is provided in the lower tray rack 1, the storage chamber can be used to store sewage generated during the cleaning process of the sample storage area 3014, the bottom of the storage chamber is connected to the drain port 11, and the top of the storage chamber is connected to the exhaust port 12, and valves for controlling the switch are provided at the drain port 11 and the exhaust port 12;

[0051] The drying unit 9 includes an air pump, a gas delivery pipeline, and a gas heating mechanism. The gas heating mechanism is used to heat the gas transported in the gas delivery pipeline. The air pump is used to deliver external air into the gas delivery pipeline. The disinfection unit 10 includes a disinfection lamp. The disinfection lamp is connected to a controller set on the upper tray rack 2. The disinfection lamp is used to disinfect the tray body 3 after drying. A unloading power unit 13 is set in the storage cavity. The unloading power unit 13 includes a delivery pump. The end of the delivery pipe connected to the delivery pump is horizontally set at the bottom of the storage cavity, and the delivery pipe is aligned with the sewage outlet. The delivery pump can deliver external gas into it, and the gas blows the sewage inside the storage cavity to move, allowing it to flow out faster from the sewage outlet 11; it is worth mentioning that when the tray body 3 is in a sealed state, the space on the upper side of the storage plate is separated from the storage cavity inside the lower tray rack 1.

[0052] Working principle:

[0053] The entire tray body 3 is composed of an inner tray 301 and an outer tray 302, and is provided with a sample storage area 3014 for storing samples for subsequent thermal analysis;

[0054] After the thermal analysis of the sample is completed, the sample is taken away, and then the tray body 3 is sent to the tray storage assembly 6 in the lower tray rack 1 and pushed to a position where it cannot be moved further. At this time, the tray clamping unit 602 is aligned with the gripping rod 303, and then the tray clamping unit 602 is started, and the telescopic rod 6027 inside it drives the crescent bracket block 6021 and other components to move upward, and finally the center of the bracket block at the top of the crescent bracket block 6021 coincides with the center line of the gripping rod 303, and then the driving motor 6025 is started, which drives The power gear 6024 rotates, and the meshing between the teeth drives the transmission gear 6023 and the fan-shaped card plate 6022 to rotate, so that the fan-shaped card plate 6022 rotates to the upper area of ​​the grip 303. Finally, the fan-shaped card plate 6022 and the grip 303 together cover more than two-thirds of the grip 303 (two limit rings are set at the position of the grip 303 corresponding to the crescent bracket block 6021, and the crescent bracket block 6021 is located between the two limit rings). At this time, the grip 303 is locked by the tray clamping unit 602;

[0055] Afterwards, the form conversion drive unit 7 can drive the tray storage assembly 6 and the tray body 3 to rotate, so that the tray body 3 can be converted between the sealed state and the cleaning and drying state. After the thermal analysis, the tray body 3 is converted to the cleaning and drying state, and it is flushed by the cleaning unit 8 to remove the material remaining in the tray body 3. The drying unit 9 dries the tray body 3 so that it can dry quickly. The dried tray body 3 is rotated to a sealed state, and then disinfected by the disinfection unit 10, and then stored. The cleaning of the tray body 3 does not require direct contact by the staff, and danger can be avoided when doing thermal analysis of some items that are harmful to the human body.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sample tray and tray rack for a thermal analysis instrument, comprising a lower tray rack (1), an upper tray rack (2), and a tray body (3), wherein the tray body (3) comprises a sample storage area (3014) for storing samples, characterized in that: The tray body (3) comprises an inner tray (301), an outer tray (302), and two gripping rods (303), wherein the two gripping rods (303) are symmetrically distributed at two ends of the inner tray (301), and the inner tray (301) and the outer tray (302) are detachably connected; The lower tray rack (1) and the upper tray rack (2) are aligned vertically, and an inlet and outlet are provided between the lower tray rack (1) and the upper tray rack (2); A tray storage assembly (6) for storing a tray body (3) is installed in the lower tray rack (1), the tray storage assembly (6) comprising a storage plate, a clamping assembly (601), and a tray clamping unit (602), the tray clamping unit (602) being used to clamp or release the tray body (3); The tray storage assembly (6) is connected to a form conversion driving unit (7) for driving the tray storage assembly (6) to rotate. The form conversion driving unit (7) drives the tray storage assembly (6) and the tray body (3) to rotate, so that the tray body (3) has two states in the lower tray frame (1) and the upper tray frame (2), the two states being a sealed state and a cleaning and drying state. When the tray body (3) is in the sealed state, the tray body (3) is placed horizontally. When the tray body (3) is in the cleaning and drying state, the tray body (3) is in a vertical state, and the sample storage area (3014) in the tray body (3) faces the cleaning unit (8) and the drying unit (9).

2. A sample tray and tray rack for a thermal analysis instrument according to claim 1, characterized in that: The inner tray (301) comprises an arc-shaped groove (3011) and a fan-shaped groove (3012), wherein the arc-shaped groove (3011) is connected to the fan-shaped groove (3012), and the outer tray (302) is provided with an arc-shaped block (3021) and a fan-shaped block (3022) at positions corresponding to the arc-shaped groove (3011) and the fan-shaped groove (3012), respectively, wherein the fan-shaped groove (3012) is connected to the annular groove at the bottom, and the fan-shaped block (3022) can rotate along the inner wall of the annular groove, and the arc-shaped block (3021) can rotate along the inner wall of the arc-shaped groove (3011).

3. A sample tray and tray rack for a thermal analysis instrument according to claim 2, characterized in that: A positioning ring (3013) is arranged inside the inner tray (301), and the positioning ring (3013) is plugged into the outer tray (302); a first inclined plate (3023) is arranged at one end of the outer tray (302) close to the inner tray (301); the other end of the first inclined plate (3023) is connected to the second inclined plate (3024); a spring is installed between the first inclined plate (3023) and the second inclined plate (3024); an end of the second inclined plate (3024) away from the first inclined plate (3023) is arranged on a slider; the slider cooperates with a track arranged on the outer tray (302); and the slider is connected to the push-pull plate (3025).

4. A sample tray and tray rack for a thermal analysis instrument according to claim 3, characterized in that: The push-pull plate (3025) passes through a side of the outer wall of the outer tray (302) and is provided with a handle; the push-pull plate (3025) is connected to two positioning rods (3026) symmetrically distributed about the center line of the first inclined plate (3023); a positioning groove (3016) is provided at a position of the positioning ring (3013) corresponding to the positioning rod (3026); and a storage box (3015) is provided at a position of the inner tray (301) corresponding to the first inclined plate (3023) and the second inclined plate (3024); a storage groove is provided on the inner side of the storage box (3015), and an arc structure is provided on the outer wall of the storage box (3015).

5. The sample tray and tray rack for thermal analysis instrument according to claim 1, characterized in that: A transparent window (4) is provided at a position between the upper tray rack (2) and the lower tray rack (1), and a lifting door (5) with an opening and closing function is provided at the position of the entrance and exit.

6. A sample tray and tray rack for a thermal analysis instrument according to claim 1, characterized in that: The tray clamping unit (602) comprises a plurality of crescent bracket blocks (6021), and each tray clamping unit (602) is provided with four crescent bracket blocks (6021). The crescent bracket blocks (6021) are arranged in groups of two, and the crescent bracket blocks (6021) in a group are used to clamp one of the gripping rods (303). The bracket block at the top of the crescent bracket block (6021) is arranged in a semicircular shape, and a telescopic groove is arranged in the crescent bracket block (6021), and the size of the telescopic groove is less than 180°.

7. A sample tray and tray rack for a thermal analysis instrument according to claim 6, characterized in that: A fan-shaped card plate (6022) is installed in the telescopic groove and can rotate around the center line of the gripping rod (303). The fan-shaped card plate (6022) is connected to a transmission gear (6023). The transmission gear (6023) is arranged in an arc shape, and its size is less than 180 degrees. The transmission gear (6023) is connected to a power gear (6024) through tooth meshing. The power gear (6024) is connected to the output shaft of a driving motor (6025). The driving motor (6025) is arranged on a motor bracket connected to a crescent bracket block (6021). A group of crescent bracket blocks (6021) are arranged on the same lifting plate (6026).

8. A sample tray and tray rack for a thermal analysis instrument according to claim 7, characterized in that: The lifting plate (6026) is connected to a telescopic rod (6027) for driving the lifting plate to move in a direction perpendicular to the tray body (3); the telescopic rod (6027) is connected to the storage plate through a cylinder bracket; a through hole is provided at a position of the storage plate corresponding to the lifting plate (6026); and the lifting plate (6026) can move along the inner wall of the through hole.

9. The sample tray and tray rack for thermal analysis instrument according to claim 1, characterized in that: The cleaning unit (8) comprises a water tank, a cleaning pump, and a drain pipe, and a storage chamber is provided in the lower tray frame (1), the bottom of the storage chamber is connected to a sewage outlet (11), and the top of the storage chamber is connected to an exhaust port (12), and valves for controlling the opening and closing are provided at the sewage outlet (11) and the exhaust port (12).

10. A sample tray and tray rack for a thermal analysis instrument according to claim 9, characterized in that: The drying unit (9) comprises an air pump, a gas delivery pipeline, and a gas heating mechanism, wherein the gas heating mechanism is used to heat the gas transported in the gas delivery pipeline, and the air pump is used to deliver external air into the gas delivery pipeline. The disinfection unit (10) comprises a disinfection lamp, which is connected to a controller arranged on the upper tray rack (2). A material unloading power unit (13) is arranged in the storage chamber, and the material unloading power unit (13) comprises a delivery pump, and the end of the delivery pipe connected to the delivery pump is horizontally arranged at the bottom of the storage chamber, and the exhaust port of the delivery pipe is aligned with the sewage outlet.

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