Graphite sagger structure

Abstract

The utility model discloses a graphite sagger structure, which relates to the technical field of graphite saggers and comprises a sagger body, a placing cavity is arranged at the upper end of the sagger body, a sealing cover used for sealing the placing cavity is clamped at the upper end of the sagger body, a clamping hole and a fixing mechanism are arranged on the outer side wall of the sagger body, the fixing mechanism is mounted in the sealing cover, and the fixing mechanism comprises a clamping plate, a turntable and a connecting rod. A push plate is slidably mounted in the sealing cover, a plurality of clamping plates are fixedly connected to one side of the push plate, the other side of a connecting rod is fixedly connected to the side, away from the clamping plates, of the push plate, a sliding rod is fixedly connected to the edge, away from the push plate, of the upper end of the connecting rod, and a sliding hole matched with the sliding rod is formed in the lower end of the rotating disc. The rotating disc is rotated to enable the clamping plate to extend out of the side edge of the sealing cover, the extending clamping plate is clamped in the clamping hole of the sealing cover, then the sealing cover is limited and prevented from being separated from the box body, and the problem that after objects in an existing sealed graphite sagger are heated, the temperature in the box body rises, and internal gas expands to jack the box cover open is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of graphite saggers, in particular to a graphite sagger structure. Background Art

[0002] A graphite crucible is a container used for high-temperature experiments and chemical reactions, typically made of high-purity graphite. It is widely used in many fields, particularly in materials science, metallurgy, chemical synthesis, and the electronics industry. Graphite crucibles are heat-resistant, capable of withstanding temperatures exceeding 2000°C, making them ideal for high-temperature smelting and reactions. Graphite also has excellent thermal conductivity, distributing heat evenly and preventing localized overheating. Graphite is resistant to many chemicals at high temperatures and is not easily reactive with other chemicals. Even under high-temperature conditions, graphite crucibles maintain high strength and durability. Compared to metal materials, graphite crucibles are relatively lightweight, making them easy to handle and transport.

[0003] Most existing graphite saggers are equipped with a sagger lid, refer to the graphite sagger with patent publication number: CN207395492U. The sagger lid can effectively prevent dust, impurities or other pollutants in the external environment from entering the interior of the sagger, maintaining the purity of the experimental or reaction materials. When certain chemical reactions occur in the sagger, the composition of the atmosphere (such as oxygen, nitrogen or inert gas) is crucial to the reaction results. The sagger lid can help maintain a specific atmosphere and prevent unnecessary reactions between oxygen or moisture in the air and the sample. The sagger lid can also reduce heat loss, improve heating efficiency, and enable the internal substances to reach the required temperature faster. Certain chemicals may volatilize at high temperatures. The sagger lid can effectively reduce the volatilization loss of these substances and ensure the accuracy and integrity of the experiment.

[0004] However, when the objects inside the sealed graphite sagger are heated, the temperature inside the sagger rises, causing the gas to expand, thereby increasing the internal pressure. If the pressure is too high, the sagger lid may be pushed open. If the internal pressure exceeds the sagger's tolerance, it may cause the sagger to rupture or explode, releasing high-temperature gases and solid particles, causing serious personal injury and equipment damage. When the sagger lid is opened, the high-temperature gas may suddenly eject, causing a sudden rise in the ambient temperature and increasing the risk of burns or fire. The substances in the sagger are ejected due to the release of pressure, which may cause harm to the operator, especially in a laboratory or industrial environment, where the splashing chemicals may be corrosive or toxic. Therefore, in order to solve the above-mentioned problems, a graphite sagger structure is now provided. Utility Model Content

[0005] The utility model aims to provide a graphite sagger structure to solve the problem in the prior art that after the objects inside the sealed graphite sagger are heated, the temperature inside the sagger rises, causing the internal gas to expand and push open the sagger cover.

[0006] To achieve the above object, the utility model provides the following technical solution: a graphite sagger structure, comprising a sagger body, a placement cavity is opened at the upper end of the sagger body, a cover for closing the placement cavity is engaged with the upper end of the sagger body, and a clamping hole is opened on the outer wall of the sagger body;

[0007] The fixing mechanism is installed in the cover and includes a clamping plate, a rotating disk and a connecting rod;

[0008] The rotating disk is rotated to make the card plate extend from the side of the cover, and the extended card plate is engaged in the card hole of the cover, thereby limiting the cover and preventing the cover from being separated from the box body.

[0009] As a preferred technical solution of the present invention, a card slot matching the lower end of the cover is provided at the upper end of the box body, and a plurality of card holes are provided in the card slot.

[0010] As an optimal technical solution of the present invention, the turntable is rotatably installed in the cover, and a push plate is slidably installed in the cover. Multiple clamping plates are fixedly connected to one side of the push plate, and the other side of the connecting rod is fixedly connected to the side of the push plate away from the clamping plate. The upper end of the connecting rod is fixedly connected to the edge of the push plate away from the push plate, and a sliding rod is fixedly connected to the lower end of the turntable. A sliding hole matching the sliding rod is opened.

[0011] As a preferred technical solution of the present invention, four connecting rods are slidably installed inside the cover, and the sliding holes are set as arc-shaped grooves. The four connecting rods and sliding holes are evenly distributed in a circular array with the turntable as the center.

[0012] As a preferred technical solution of the present invention, a limit ring is provided on the outer wall of the turntable, and a ring groove matching the limit ring is provided inside the cover.

[0013] As a preferred technical solution of the present invention, a receiving groove is provided at the upper end of the turntable, and a handle for controlling the rotation of the turntable is rotatably installed in the receiving groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model solves the problem that after the internal objects of the existing sealed graphite sagger are heated, the internal temperature of the sagger rises, causing the internal gas to expand and push open the sagger. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the overall structure of a graphite sagger according to an embodiment of the present utility model;

[0017] Figure 2 This is an exploded view of a graphite sagger according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic cross-sectional structural diagram of a cover according to an embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of a vertical cross-sectional structure of a cover according to an embodiment of the utility model;

[0020] Figure 5 This is a schematic diagram of the card structure of an embodiment of the utility model;

[0021] Figure 6 This is a schematic diagram of the turntable structure of an embodiment of the present utility model.

[0022] In the figure: 1. Box body; 11. Card slot; 12. Card hole; 2. Cover; 3. Fixing mechanism; 31. Card plate; 311. Push plate; 32. Turntable; 321. Slide hole; 33. Connecting rod; 331. Slide rod; 4. Handle. DETAILED DESCRIPTION

[0023] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-6 This embodiment provides a graphite sagger structure, including a graphite sagger body 1 and a cover 2. Both the sagger body 1 and the cover 2 are die-casted from high-purity graphite, ensuring the stability and durability of the sagger in high temperature and chemical corrosion environments. Figure 2 As shown, a slot 11 is provided at the upper end of the sagger 1, and the lower end of the cover 2 can be snapped onto the upper end of the sagger 1 through the slot 11. This snap-fit ​​design not only provides good sealing performance to prevent leakage of internal substances, but also effectively isolates the influence of the external environment on the interior of the sagger, ensuring the accuracy and reliability of the experiment.

[0025] When the object inside the box body 1 is heated, the gas inside the box body 1 increases in pressure and expands. The gas pressure generated by the expanding gas will lift the cover 2 and separate the cover 2 from the box body 1. In order to fix the cover 2 and prevent it from separating from the box body 1, a fixing mechanism 3 is installed inside the cover 2.

[0026] like Figure 3As shown, the fixing mechanism 3 includes a clamping plate 31, a turntable 32 and a connecting rod 33, wherein a turntable hole is provided at the upper end of the cover 2, and the turntable 32 is rotatably installed in the turntable hole. An annular groove is provided on the inner wall of the turntable hole, and a limiting ring is fixedly sleeved on the outer wall of the turntable 32, and the limiting ring is rotatably installed in the annular groove. The turntable 32 is limited by the limiting ring to prevent the turntable 32 from falling out of the turntable hole.

[0027] There are four connecting rods 33, which are slidably mounted in the cover 2 and are evenly distributed in a circular array with the turntable 32 as the center. One end of the connecting rod 33 is fixedly connected to a push plate 311, and multiple clamping plates 31 are fixedly connected to the side of the push plate 311 away from the connecting rod 33. The other end of the connecting rod 33 is fixedly connected to a sliding rod 331. Figure 6 As shown, four sliding holes 321 are opened at the lower end of the turntable 32, and the sliding holes 321 are set as arc-shaped grooves. The four sliding holes 321 are evenly distributed in a circular array around the turntable 32, with one end of the sliding hole 321 close to the edge of the turntable 32, and the other end of the sliding hole 321 close to the bottom center of the turntable 32.

[0028] The slide bar 331 is slidably mounted within the slide hole 321. When the turntable 32 is rotated to slide the slide bar 331 to one end of the slide hole 321 near the edge of the turntable 32, the slide bar 331 drives the connecting rod 33 to slide within the cover 2. The connecting rod 33 slides through the push plate 311, driving the retaining plate 31 to slide out from the outer wall of the cover 2. The outer wall of the cassette body 1 is provided with a retaining hole 12, which is interconnected with the retaining groove 11. After the cover 2 is engaged with the upper end of the cassette body 1, the retaining plate 31 is aligned with the retaining hole 12. After the retaining plate 31 slides out from the outer wall of the cover 2, the retaining plate 31 is inserted into the retaining hole 12. Once inserted into the retaining hole 12, the retaining plate 31 can limit the cover 2, thereby achieving a secure locking and preventing the cover 2 from separating from the cassette body 1.

[0029] To open the lid 2, the turntable 32 is rotated in the opposite direction, causing the slide bar 331 to slide to the end of the slide hole 321 near the center of the bottom of the turntable 32. At this point, the clamping plate 31 can be slid and retracted into the lid 2, removing the position restriction on the lid 2. To facilitate the rotation of the turntable 32, a storage groove is provided at the top end of the turntable 32. A handle 4 is rotatably mounted in the groove, allowing manual operation of the turntable 32. After the sagger is heated, the operator needs to wear heat-insulating gloves to control the handle 4.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A graphite sagger structure, characterized in that: include: A box body (1), wherein a placement cavity is provided at the upper end of the box body (1), a cover (2) for closing the placement cavity is engaged at the upper end of the box body (1), and a clamping hole (12) is provided on the outer side wall of the box body (1); A fixing mechanism (3), the fixing mechanism (3) being installed in the cover (2), the fixing mechanism (3) comprising a clamping plate (31), a rotating disk (32) and a connecting rod (33); The rotating disk (32) is rotated to cause the clamping plate (31) to extend from the side of the cover (2), and the extended clamping plate (31) is engaged in the clamping hole (12) of the cover (2), thereby limiting the cover (2) and preventing the cover (2) from being separated from the box body (1).

2. A graphite crucible structure according to claim 1, characterized in that: The upper end of the box body (1) is provided with a card slot (11) that matches the lower end of the cover (2), and a plurality of card holes (12) are provided in the card slot (11).

3. A graphite crucible structure according to claim 2, characterized in that: The turntable (32) is rotatably installed in the cover (2), and a push plate (311) is slidably installed in the cover (2). A plurality of the clamping plates (31) are fixedly connected to one side of the push plate (311), and the other side of the connecting rod (33) is fixedly connected to the side of the push plate (311) away from the clamping plate (31). The upper end of the connecting rod (33) is fixedly connected to a sliding rod (331) at the edge away from the push plate (311), and the lower end of the turntable (32) is provided with a sliding hole (321) matching the sliding rod (331).

4. A graphite crucible structure according to claim 3, characterized in that: Four connecting rods (33) are slidably mounted inside the cover (2), and the sliding holes (321) are configured as arc-shaped grooves. The four connecting rods (33) and the sliding holes (321) are evenly distributed in a circular array with the rotating disk (32) as the center.

5. A graphite crucible structure according to claim 4, characterized in that: A limit ring is provided on the outer side wall of the turntable (32), and a ring groove matching the limit ring is provided inside the sealing cover (2).

6. A graphite crucible structure according to claim 5, characterized in that: A receiving groove is provided at the upper end of the turntable (32), and a handle (4) for controlling the rotation of the turntable (32) is rotatably installed in the receiving groove.

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