Ceramic crucible

Abstract

The invention relates to the technical field of crucibles, in particular to a ceramic crucible which comprises a base, a cup body, a movable assembly, a sealing assembly and a safety assembly, the cup body is fixedly installed on the base, the base is provided with a radial supporting shaft and a plurality of coaxial different-diameter heat conduction rings, the movable assembly is installed on the side face of the cup body, and the sealing assembly is installed on the movable assembly. The movable assembly moves the cup body and the sealing assembly according to the mortise and tenon joint fixing principle. The sealing assembly is rotationally installed above the cup body, the sealing assembly is driven by the movable assembly to rotate to expose different numbers of air holes, the safety assembly is installed on the outer surface of the cup body, and when the air pressure in the cup body is too large, a piston in the safety assembly moves upwards in a sliding cavity; therefore, the sliding rod is driven to rotate under the limiting movement of the fixing pin and the rotating groove.

Description

Technical Field

[0001] This invention relates to the field of crucible technology, and more specifically to a ceramic crucible. Background Technology

[0002] Ceramic crucibles are chemical laboratory supplies, mainly composed of alumina (45-55%) and silicon dioxide. They can withstand temperatures up to approximately 1200 degrees Celsius. They are suitable for melting acidic substances such as K₂S₂O₇. Ceramic crucibles are generally used for heating solids over high heat. During use, asbestos mesh is required for heat conduction, ensuring more even heating. According to the preliminary list of carcinogens published by the International Agency for Research on Cancer (IARC) of the World Health Organization, asbestos (in various forms, including actinolite, amoeboids, tremolite, chrysotile, crocidolite, and tremolite) is listed as a Group 1 carcinogen.

[0003] However, existing ceramic crucibles still heavily utilize asbestos mesh as experimental equipment, especially in middle school teaching experiments, which can seriously endanger the health of minors. Asbestos mesh cannot be reused, leading to waste; it is difficult to preserve, requiring a high-quality storage environment; and it is inconvenient to handle and store, easily damaging the asbestos layer and reducing its thermal conductivity. During heating in ceramic crucibles, the crucible lid often needs to be placed at an angle to prevent the experimental object from jumping out of the crucible while allowing air circulation for oxidation. Some experimental reactions are so vigorous that they produce large amounts of gas, causing the crucible lid to fall off and break, leading to experimental failure and even endangering the operator. Crucible tongs are needed to handle the crucible and its lid, but these tongs are prone to slipping off during handling, damaging the crucible. The lid also suffers from unstable gripping and is easily detached.

[0004] In view of the above, in order to overcome the above technical problems, the present invention designs a ceramic crucible, which solves the above technical problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that existing ceramic crucibles inevitably require the use of asbestos mesh during use. Asbestos pollution caused by the asbestos mesh can seriously affect the health of operators, and improper operation of crucible tongs can easily damage the ceramic crucible.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This invention provides a ceramic crucible comprising a base, a cup body, a movable component, a sealing component, and a safety component. The cup body is fixedly mounted on the base, and the base improves heat transfer through radial support shafts. The movable component is movably mounted on the side of the cup body, and the movable component achieves movement of the cup body and the sealing component through a tenon-and-mortise fixing principle. The sealing component is rotatably mounted above the cup body, and the sealing component rotates under the drive of the movable component to control different airflow efficiencies. The safety component is mounted on the outer surface of the cup body. When the air pressure inside the cup body is too high, the piston in the safety component moves upward in the sliding cavity, thereby driving the sliding rod to rotate under the limiting movement of the fixed pin and the rotating groove.

[0008] Traditional ceramic crucibles typically use asbestos mesh and an iron tripod to achieve balanced and uniform heat transfer. However, asbestos in the mesh is a relatively dangerous carcinogen, posing a significant health risk to laboratory personnel who may use it repeatedly. Furthermore, the widespread use of asbestos mesh in secondary school teaching experiments poses a potential threat to the physical and mental health of minors. The base includes a heat-concentrating seat, a heat-concentrating surface, a mounting groove, a heat-conducting plate, and a heat-conducting material. The heat-concentrating surface is located below the heat-concentrating seat, which concentrates the heating effect, improving heating efficiency, reducing energy consumption, and effectively shortening heating time, thus enhancing the crucible's working efficiency. The mounting groove is located 2-3 cm from the bottom of the heat-concentrating seat. This groove is primarily for use with existing iron tripods, providing better fixation between the crucible and the tripod, thereby ensuring experimental stability. A distance of less than 2 cm would result in a higher center of gravity for the crucible, leading to… The center of gravity is unstable, posing a safety hazard during use; a distance greater than 3cm will cause the heat-gathering surface and heating device to be too close, resulting in a drop in heating temperature and reduced heating efficiency; the internal space is filled with heat-conducting discs, with the number of discs set to 2-3. If only one heat-conducting disc is set, the heating effect will be uneven; if more than three heat-conducting discs are set, the space for the heat-conducting material will be reduced, resulting in a decrease in heat transfer efficiency; the heat-conducting material is placed inside the heat-gathering base, which is made of quartz sand. Quartz sand is quartz particles produced by crushing and processing quartz stone. Quartz stone is a non-metallic mineral, a hard, wear-resistant, and chemically stable silicate mineral. Quartz sand has good thermal conductivity, and its diameter is set to 0.1-0.25mm. A diameter less than 0.1mm may cause leakage, which is not conducive to long-term use; when the diameter is greater than 0.25mm, the gaps are too large, resulting in a decrease in heat conduction effect and making it difficult to achieve a uniform and rapid heat conduction effect.

[0009] The heat-conducting plate is preferably configured with a spider web structure, which consists of multiple rings of different radii with a common center. Eight straight lines run along the perimeter from the center to secure these rings. This spider web structure allows for good fit and fixation with the base, increasing service life and reducing experimental costs. The spider web structure effectively transfers heat to the heat-conducting material and has a radiating effect, ensuring even heat distribution. Furthermore, the spider web structure is particularly material-efficient, reducing manufacturing costs without compromising heat conduction. The heat-conducting plate includes a support shaft and heat-conducting rings. The support shaft is radially oriented, which helps stabilize the mechanical structure of the heat-conducting plate. To ensure service life, the number of support shafts is set to 4-10. Fewer than 4 support shafts result in poor support and may lead to breakage under long-term use. More than 10 support shafts result in less space for the heat-conducting material, which is not conducive to rapid and uniform heat transfer. 3-6 heat-conducting rings are arranged along the support shaft direction. Fewer than 3 heat-conducting rings have larger spacing, which is not conducive to stable and rapid heat transfer. More than 6 heat-conducting rings will compress the space of the heat-conducting material, resulting in insufficient contact area between the heat-conducting material and the heat-conducting plate. Their diameters are arranged in an arithmetic sequence to ensure consistent conduction efficiency and achieve uniform heat conduction.

[0010] During the heating process of the ceramic crucible, it is necessary to ensure the stability and sealing of the cup body. The cup body includes a cup wall, a fixing block, a fixing groove, and a sealing protrusion. The cup wall is fixedly installed on the base. The fixing block is located at 1 / 4 and 3 / 4 of the side of the cup wall. These two locations help to support the stability of the entire cup body. The fixing groove is formed on the lower end face of the fixing block. The fixing groove is a three-dimensional trapezoid. The structure of the three-dimensional trapezoid is narrow at the top and wide at the bottom, which facilitates quick installation and provides multi-directional stability during movement. The sealing protrusion is fixedly installed on the upper end face of the cup wall. The height of the sealing protrusion is set to 3-6mm above the upper end face of the cup wall. When the installation height is less than 3mm, the sealing effect of the sealing protrusion is poor. When it is greater than 6mm, it will affect the normal use of the cup body.

[0011] Existing technology often uses crucible tongs to handle crucibles when moving them. However, crucible tongs are unstable when gripping the crucible and lid, easily damaging them. Furthermore, the tongs are relatively long, making them difficult to position during operation and prone to contamination, leading to inaccurate experimental data or even experimental failure. The proposed movable component includes a handle, anti-slip texture, locking blocks, stabilizing grooves, and a protective sleeve. The handle length is set to 12-15cm. A length less than 12cm makes it easy for operators to accidentally touch the hot cup wall during experiments, while a length greater than 15cm results in an excessive distance between the handle and the cup body, hindering movement and increasing the risk of dropping. The handle features anti-slip textures in a spiral shape, which enhances vertical friction. Locking blocks with stabilizing grooves are fixedly installed at both ends of the handle. The protective sleeve, made of high-temperature resistant rubber, further protects the operator's safety during experimental use.

[0012] Existing technology can only meet the need for air circulation by tilting the crucible lid, which results in poor stability of the lid during use. The ceramic crucible uses a sealing assembly to control air circulation. This sealing assembly includes a vent lid, a sealing lid, and a hanging lug. The vent lid is detachably mounted on the crucible body, and the sealing lid is rotatably mounted above the vent lid. The hanging lug is fixedly mounted on both the vent lid and the sealing lid, and a clamping groove is provided below the hanging lug. A sealing groove is provided below the vent lid, and vent holes are evenly distributed on the vent lid. The number of vent holes is set to 12-20. Fewer than 12 vent holes are not conducive to meeting the corresponding usage requirements when air circulation is needed, while more than 20 vent holes will reduce the structural strength of the vent lid, which is detrimental to the stability of the ceramic crucible during use. A mounting protrusion is provided on the side of the vent lid. A mating protrusion is fixedly mounted on the side of the sealing lid, and a rotating groove is provided below the mating protrusion. The rotating groove is 3 / 4 cylindrical.

[0013] The safety assembly includes a sealing shell, a sliding cavity, a transition cavity, an air inlet, a fixing pin, and a sliding block. The sealing shell is installed on the outer surface of the cup body. The sliding cavity is located inside the sealing shell, and the transition cavity is located inside the sealing shell. Both the sliding cavity and the transition cavity are cylindrical, which facilitates the sliding of the sliding block. The radius of the transition cavity is 0.5-0.8 times the radius of the sliding cavity. Within this range, the transition cavity and the sliding cavity can limit the sliding block, ensuring that it can only move within the sliding cavity. The fixing pin is installed on the inner surface of the sliding cavity, and the sliding block is installed inside the sliding cavity. The upper part of the sliding block is a sliding rod, and the outer surface of the sliding rod has a rotating groove. The rotating groove is helical, and it works with the fixing pin to allow the sliding block to rotate. A piston is installed below the sliding rod, and the radius of the piston is the same as the radius of the sliding cavity to ensure sealing during piston movement. A rotating pin, which is semi-cylindrical, is installed above the sliding rod.

[0014] The beneficial effects of this invention are as follows:

[0015] 1. This invention features a base with a heat-conducting plate fixed within it and filled with a heat-conducting material, sand. Sand provides rapid and uniform heat conduction, eliminating the need for replacement and ensuring long-term stable use. Furthermore, the base's bottom uses a rounded surface, which further accelerates heat transfer. This base design allows for rapid and uniform heating of the crucible's interior without the need for an asbestos mesh, avoiding asbestos contamination and effectively protecting the health of operators. The integrated design also makes it convenient to use, eliminating the need for unnecessary tools and promoting environmental friendliness.

[0016] 2. This invention, by incorporating movable components, includes a heat-resistant rubber protective sleeve in the vertical middle section of the handle, which further insulates against heat and effectively protects the operator. A locking block is located at each of the upper and lower ends of the handle, and hooks with locking grooves are provided on one side of the crucible and on opposite sides of the two crucible lids. Through the locking action of the keyed connection, the crucible and sealing components can be accessed via the handle. This improves upon existing crucible tongs used for moving crucibles, making the process of accessing the crucible and lids more stable, thus protecting them and facilitating operation.

[0017] 3. By setting up a sealing component, this invention allows for effective air circulation while preventing the vented cap from slipping during the use of the ceramic crucible. The rotating connection between the vented cap and the sealing cap enables quick centering, and rotating the sealing cap allows different areas of the vented cap to be exposed, thus meeting different air circulation requirements in different experiments. The vented cap and the sealing cap can be used independently or together to meet various experimental requirements. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is an overall schematic diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the base of the present invention;

[0021] Figure 3 This is a cross-sectional view of the base of the present invention;

[0022] Figure 4 This is a schematic diagram of the heat transfer plate of the present invention;

[0023] Figure 5 This is a cross-sectional view of the cup body of the present invention;

[0024] Figure 6 This is a schematic diagram of the active components of the present invention;

[0025] Figure 7 This is a schematic diagram of the installation of the sealing components of the present invention;

[0026] Figure 8 This is a schematic diagram of the breathable cover of the present invention;

[0027] Figure 9 This is a cross-sectional view of the ventilated cover of the present invention;

[0028] Figure 10 This is a schematic diagram of the sealing cap of the present invention;

[0029] Figure 11 This is a schematic diagram of the sliding block position of the present invention.

[0030] In the diagram: 1. Base; 11. Heat-concentrating base; 12. Heat-concentrating surface; 13. Mounting groove; 14. Heat-conducting plate; 141. Support shaft; 142. Heat-conducting ring; 15. Heat-conducting material; 2. Cup body; 21. Cup wall; 22. Fixing block; 23. Fixing groove; 24. Sealing protrusion; 3. Movable component; 31. Handle; 32. Anti-slip texture; 33. Clamping block; 34. Stabilizing groove; 35. Protective sleeve; 4. Sealing component; 41. Vent cap; 41 1. Sealing groove; 412. Vent hole; 413. Mounting protrusion; 414. Mating hole; 42. Sealing cover; 421. Mating protrusion; 422. Rotating groove; 43. Hanging lug; 431. Clamping groove; 5. Safety component; 51. Sealing shell; 52. Sliding cavity; 53. Transition cavity; 54. Air inlet; 55. Fixing pin; 56. Sliding block; 561. Sliding rod; 562. Rotating groove; 563. Piston; 564. Rotating pin. Detailed Implementation

[0031] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0032] like Figures 1 to 11 As shown, the present invention provides a ceramic crucible comprising a base 1, a cup body 2, a movable component 3, a sealing component 4, and a safety component 5. The cup body 2 is fixedly mounted on the base 1, and the base 1 improves heat transfer through radial support shafts 141. The movable component 3 is movably mounted on the side of the cup body 2, and the movable component 3 achieves movement of the cup body 2 and the sealing component 4 through a tenon-and-mortise fixing principle. The sealing component 4 is rotatably mounted on the top of the cup body 2, and the sealing component 4 rotates under the drive of the movable component 3 to control different airflow efficiencies. The safety component 5 is mounted on the outer surface of the cup body 2. When the air pressure inside the cup body 2 is too high, the piston 563 in the safety component 5 moves upward in the sliding cavity 52, thereby driving the sliding rod 561 to rotate under the limiting movement of the fixing pin 55 and the rotating groove 562.

[0033] like Figure 2 and Figure 3As shown, traditional ceramic crucibles generally use asbestos mesh and iron tripods to achieve balanced and uniform heat transfer. However, asbestos in the mesh is a relatively dangerous carcinogen, and repeated use by laboratory personnel could cause significant harm to their health. Furthermore, the widespread use of asbestos mesh in middle school teaching experiments poses a risk to the physical and mental health of minors. The base 1 includes a heat-collecting seat 11, a heat-collecting surface 12, a mounting groove 13, a heat-conducting plate 14, and a heat-conducting material 15. The heat-collecting seat 11 is used to collect and heat the heat from the heating device. The heat-collecting seat 11... The crucible is provided with a heat-concentrating surface 12, which is used to improve the heating effect and reduce the heating time. The heat-concentrating surface 12 can concentrate the heating effect, improve heating efficiency, reduce energy consumption, and effectively shorten the heating time, thereby improving the working efficiency of the crucible. The heat-concentrating base 11 has a mounting groove 13 located 2.5cm from the bottom. The mounting groove 13 is used to enhance stability during use. The mounting groove 13 is mainly for use with existing iron tripods, improving the fixation between the crucible and the iron tripod, thus ensuring the stability of the experiment. Setting the distance to less than 2cm will cause the crucible's center of gravity to be too high, leading to instability and potential safety hazards during use; setting it to more than 3cm will cause the distance between the heat-concentrating surface 12 and the heating device to be too close, resulting in a decrease in heating temperature and reduced heating efficiency; the internal space is provided with heat-conducting plates 14, which are used to evenly transfer heat. The number of heat-conducting plates 14 is set to 2. If only one heating plate is used, the heating effect will be insufficient, and if more than three heating plates are used, the space for the heat-conducting material 15 will be reduced, resulting in a decrease in heat transfer efficiency; the heat-concentrating base 11 is located inside... The base 1 is filled with the heat-conducting material 15 to achieve rapid heat conduction. The heat-conducting material 15 is quartz sand, which is quartz particles produced by crushing quartz stone. Quartz stone is a non-metallic mineral, a hard, wear-resistant, and chemically stable silicate mineral. Quartz sand has good thermal conductivity. Its diameter is set to 0.2 mm. A diameter smaller than 0.1 mm may cause leakage, which is not conducive to long-term use. When the diameter is set to greater than 0.25 mm, the gaps are larger, resulting in a decrease in heat conduction effect and making it difficult to achieve a uniform and rapid heat conduction effect.

[0034] The base 1 is stabilized by the mounting groove 13, and the heat-gathering seat 11, with the assistance of the heat-gathering surface 12, quickly gathers and transfers heat. Under the action of the heat-conducting material 15 and the heat-conducting plate 14, the heat is evenly and stably transferred into the interior of the base 1. By setting the base 1, the crucible can be heated quickly and evenly without the use of asbestos mesh during the heating process, avoiding asbestos pollution caused by asbestos mesh and effectively protecting the health of operators. At the same time, the integrated design is very convenient to use, saves unnecessary tools, and is more environmentally friendly.

[0035] like Figure 4 As shown, the heat-conducting plate 14 is configured with a spider web structure, which consists of multiple rings of different radii with the same center. Eight straight lines run around the center to fix these rings. The spider web structure allows for good fit and fixation with the base 11, increasing service life and reducing experimental costs. The spider web structure facilitates better heat transfer to the heat-conducting material 1512. It also has a radiating effect, ensuring even heat conduction. Furthermore, the spider web structure is material-saving, reducing manufacturing costs without compromising heat conduction. The heat-conducting plate 14 includes a support shaft 141 and a heat-conducting ring 142. It is used to evenly transfer heat to the heat-conducting material 15. The heat-conducting plate 14 is made of pure copper. Among conventional materials, pure metals have good thermal conductivity. Copper, with a thermal conductivity of 387 (W / mK), possesses strong thermal conductivity. Copper is also relatively inexpensive, has many raw material sources, is easy to process, and has mature processing technology. The support shaft 14... The shaft 141 is arranged radially. The support shaft 141 is used to fix the heat-conducting ring 142 in the base 1. The radial arrangement helps to stabilize the mechanical structure of the heat-conducting plate and ensure its service life. The number of shafts is set to 6. If there are fewer than 4 shafts, the support effect of the support shaft 141 will be poor, and it may break under long-term use. If there are more than 10 shafts, the space of the heat-conducting material 15 will be small, which is not conducive to the rapid and uniform transfer of heat. There are 4 heat-conducting rings 142 along the direction of the support shaft 141. The heat-conducting rings 142 are used to ensure the stability of heat transfer. If there are fewer than 3 heat-conducting rings 142, the spacing will be large, which is not conducive to the stable and rapid transfer of heat. If there are more than 6 heat-conducting rings 142, they will squeeze the space of the heat-conducting material 15, resulting in insufficient contact area between the heat-conducting material 15 and the heat-conducting plate 14. The diameters of the rings are arranged in an arithmetic sequence to ensure consistent conduction efficiency and achieve uniform heat conduction.

[0036] like Figure 5As shown, during the heating process of the ceramic crucible, it is necessary to ensure the stability and sealing of the cup body 2. The cup body 2 includes a cup wall 21, a fixing block 22, a fixing groove 23, and a sealing protrusion 24. The cup wall 21 is fixedly installed on the base 1. The cup wall 21 is used to provide a sealed environment and ensure that the internal reaction is not affected by the external environment. The fixing block 22 is provided at 1 / 4 and 3 / 4 of the side of the cup wall 21. The fixing block 22 is used to cooperate with the movable component 3 to achieve movement. The fixing blocks are located at these two positions to support the stability of the entire cup body 2. The fixing groove 23 is provided on the lower end face of the fixing block 22. The groove 23 is designed to fit the locking block 33 on the movable component 3. The fixed groove 23 is designed as a three-dimensional trapezoid, which is narrow at the top and wide at the bottom, which is conducive to quick installation and provides multi-directional stability during movement. The sealing protrusion 24 is fixedly installed on the upper surface of the cup wall 21. The sealing protrusion 24 is used to enhance the sealing between the cup body 2 and the sealing component 4. The height of the sealing protrusion 24 is set to 3-6mm relative to the upper surface of the cup wall 21. When the installation height is less than 3mm, the sealing effect of the sealing protrusion 24 is not good. When it is greater than 6mm, it will affect the normal use of the cup body 2.

[0037] like Figure 6 As shown, existing technology often uses crucible tongs to handle the crucible when moving it. However, crucible tongs are unstable when gripping the crucible and lid, easily damaging them. Furthermore, the tongs are relatively long, making them difficult to position during operation and prone to contamination, leading to inaccurate experimental data or even experimental failure. The movable component 3 includes a handle 31, anti-slip texture 32, locking block 33, stabilizing groove 34, and protective sleeve 35. The handle 31 facilitates the operator's movement of the sealing component 4 and the cup body 2. The length of the handle 31 is set to 12-15cm. If it is less than 12cm, the operator may accidentally touch the high-temperature cup wall 21 during experimental operation. If it is greater than 15cm, the distance between the handle 31 and the cup body 2 will be too great, which is not conducive to... It is easy to move and easy to fall off; the handle 31 is provided with anti-slip texture 32, which is used to enhance the friction between the handle 31 and the protective cover 35 and improve the anti-slip performance. The anti-slip texture 32 is set in a spiral shape, which helps to enhance the vertical friction of the handle 31. The clamping blocks 33 are fixedly installed on both ends of the handle 31. The clamping blocks 33 are provided with stabilizing grooves 34. The protective cover 35 is fixedly installed on the handle 31. The protective cover 35 is used to further insulate heat and ensure the safety of the operator. The material of the protective cover 35 is set as high temperature resistant rubber. When the operator uses the handle 31, the protective cover 35 helps to further protect the operator's safety.

[0038] The operator grips the protective sleeve 35, using the anti-slip texture 32 to increase friction and control the handle 31. The locking block 33 is then inserted into the fixing groove 23 on the cup body 2 for secure locking. The operator then slowly moves the handle to retrieve the ceramic crucible. A heat-resistant rubber protective sleeve 35 is located in the middle of the vertical direction of the handle 31, further isolating heat and effectively protecting the operator. A locking block 33 is located at each of the upper and lower ends of the handle 31, and hooks 43 with locking grooves are located on one side of the crucible and on opposite sides of the two crucible lids. Through the locking action of the key connection, the crucible and sealing assembly 4 can be retrieved via the handle 31. This improves upon existing crucible tongs used for moving crucibles, making the retrieval process of the crucible and lid more stable, protecting the crucible and lid, and facilitating the operation.

[0039] like Figures 7 to 10 As shown, existing technologies can only meet the need for air circulation by tilting the crucible lid, resulting in poor stability of the lid during use. The ceramic crucible uses the sealing assembly 4 to control air circulation. The sealing assembly 4 includes a vent cover 41, a sealing cover 42, and a hanging lug 43. The vent cover 41 is detachably mounted on the cup body 2 and is used when air circulation is required when heating certain substances. The sealing cover 42 is rotatably mounted above the vent cover 41 and is used when air circulation is prevented when heating certain substances. The hanging lug 43 is fixedly mounted on the vent cover 41 and the sealing cover 42, and a clamping groove 431 is provided below the hanging lug 43. A sealing groove 411 is provided below the vent cover 41 to enhance sealing performance. Vent holes 412 are evenly distributed on the vent cover 41. Vent holes 412 are used to facilitate air circulation efficiency. The number of vent holes 412 is set to 12-20. Fewer than 12 vent holes 412 are not conducive to meeting the corresponding usage requirements when air circulation is needed, while more than 20 vent holes 412 will reduce the structural strength of the vent cover 41, which is detrimental to ensuring the stability of the ceramic crucible during use. The vent cover 41 has mating holes 414 on its side, and the mounting protrusion 413 also has mating holes 414. The sealing cover 42 has a mating protrusion 421 fixedly installed on its side, and a rotating groove 422 is formed below the mating protrusion 421. The rotating groove 422 is 3 / 4 cylindrical. This allows the sealing cover 42 to rotate within a range of 0-90° through the mating holes 414 and the rotating groove 422, thus enabling stepless control of air circulation efficiency.

[0040] The vent cap 41 is mounted on the cup body 2 via the sealing groove 411, and the sealing cap 42 is rotatably mounted on the vent cap 41. The operator can adjust the sealing component 4 by rotating the movable component 3 according to different heating requirements to achieve different gas flow efficiencies. The vent cap 41 can effectively allow air flow while preventing it from slipping. The rotatable connection between the vent cap 41 and the sealing cap 42 allows for quick centering. At the same time, rotating the sealing cap 42 can expose different areas of the vent cap 41, thus meeting different air flow requirements in different experiments.

[0041] like Figure 11 As shown, the safety assembly 5 includes a sealing shell 51, a sliding cavity 52, a transition cavity 53, an air inlet 54, a fixing pin 55, and a sliding block 56. The sealing shell 51 is installed on the outer surface of the cup body. The sliding cavity 52 is opened inside the sealing shell 51, and the transition cavity 53 is opened inside the sealing shell 51. The sliding cavity 52 and the transition cavity 53 are cylindrical. The cylindrical shape facilitates the sliding block 56 to slide within them. The radius of the transition cavity 53 is 0.6 times the radius of the sliding cavity 52. ​​Within this ratio range, the transition cavity 53 and the sliding cavity 52 can limit the sliding block 56, so that the sliding block 56 can only move within the sliding cavity 52. ​​The fixing pin 55 is installed on the inner surface of the sliding cavity 52, and the sliding block 56 is installed inside the sliding cavity 52. The upper part of the sliding block 56 is a sliding rod 561. A rotating groove 562 is formed on the outer surface of the sliding rod 561. The rotating groove 562 is helical and can cooperate with the fixing pin 55 to allow the sliding block 56 to rotate. A piston 563 is rotatably mounted below the sliding rod 561, and a rotating pin 564 is mounted above the sliding rod 561. The radius of the piston 563 is the same as the radius of the sliding cavity 52. ​​The rotating pin 564 is semi-cylindrical and mounted above the sliding rod 561.

[0042] During operation, the base 1 is stabilized by the mounting groove 13 and placed on the iron triangle. An alcohol lamp is lit for heating. The heat-gathering seat 11, aided by the heat-gathering surface 12, quickly gathers and transfers the heat generated by the alcohol lamp. Under the action of the heat-conducting material 15 and the heat-conducting plate 14, the heat is evenly and stably transferred into the interior of the base 1. The operator holds the protective sleeve 35, using the anti-slip texture 32 to increase friction and control the handle 31. The locking block 33 is inserted into the fixing groove 23 on the cup body 2 for secure locking. The ceramic crucible is then slowly moved for retrieval. A heat-resistant rubber protective sleeve 35 is provided in the middle of the vertical direction of the handle 31 to further insulate against heat. The vent cover 41 is installed on the cup body 2 via the sealing groove 411. The sealing cover 42 is rotatably installed on the vent cover 41. The operator can adjust the sealing component 4 by rotating the movable component 3 according to the different heating requirements of the substance, thereby achieving different gas flow efficiencies.

[0043] When the vent cap 41 and the sealing cap 42 are closed and heated, the gas pressure inside the cup body 2 will gradually increase during certain chemical reactions. A large amount of gas enters the transition chamber 53 from the air inlet 54, pushing the piston 563 upward to move it in the sliding chamber 52. The rotating groove 562 on the sliding rod 561 rotates at a certain angle under the limiting action of the fixing pin 55, causing the rotating pin 564 installed on the sliding rod 561 to rotate, thus separating the vent cap 41 and the sealing cap 42, thereby allowing the internal and external gas pressures of the cup body 2 to communicate.

[0044] The technical features disclosed above are not limited to combinations of those already disclosed with other features. Those skilled in the art can also make other combinations of these technical features according to the purpose of this disclosure, to achieve the intended purpose. The descriptions herein are provided to enable those skilled in the art to implement or use this disclosure. Various modifications to this disclosure will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the scope of this disclosure. Therefore, this disclosure is not limited to the examples and designs described herein, but should be given the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A ceramic crucible, comprising a base (1), a body (2), a movable component (3), a sealing component (4), and a safety component (5), characterized in that, The cup body (2) is fixedly installed on the base (1). The base (1) is provided with a radial support shaft (141) and multiple coaxial heat-conducting rings (142) of different diameters. The movable component (3) is installed on the side of the cup body (2). The movable component (3) moves the cup body (2) and the sealing component (4) by means of tenon and mortise fixing. The sealing component (4) is rotatably installed on the top of the cup body (2). The sealing component (4) rotates under the drive of the movable component (3) to expose a different number of vent holes (412). The safety component (5) is installed on the outer surface of the cup body (2). When the air pressure inside the cup body (2) is too high, the piston (563) in the safety component (5) moves upward in the sliding cavity (52), thereby driving the sliding rod (561) to rotate under the limiting movement of the fixed pin (55) and the rotating groove (562).

2. The ceramic crucible according to claim 1, characterized in that: The base (1) includes a heat-collecting seat (11), a heat-collecting surface (12), a mounting groove (13), a heat-conducting plate (14), and a heat-conducting material (15); the heat-collecting surface (12) is provided below the heat-collecting seat (11), the heat-collecting surface (12) is an upwardly concave arc surface, the mounting groove (13) is provided on the side of the heat-collecting seat (11), the heat-conducting plate (14) is provided at intervals inside the heat-collecting seat (11), and the heat-conducting material (15) is placed inside the heat-collecting seat (11).

3. A ceramic crucible according to claim 2, characterized in that: The heat-conducting disk (14) includes a support shaft (141) and a heat-conducting ring (142). The support shaft (141) is arranged radially, and the heat-conducting ring (142) is arranged outward along the support shaft (141). The diameter values ​​of the multiple heat-conducting rings (142) are arranged in an arithmetic sequence outward.

4. A ceramic crucible according to claim 1, characterized in that: The cup body (2) includes a cup wall (21), a fixing block (22), a fixing groove (23), and a sealing protrusion (24); the cup wall (21) is fixedly installed on the base (1), the fixing block (22) is provided at 1 / 4 and 3 / 4 of the side of the cup wall (21), the fixing groove (23) is provided on the lower end face of the fixing block (22), and the cross-sectional shape of the fixing groove (23) is trapezoidal; the sealing protrusion (24) is fixedly installed on the upper end face of the cup wall (21).

5. A ceramic crucible according to claim 1, characterized in that: The active component (3) includes a handle (31), anti-slip texture (32), clamping block (33), stabilizing groove (34), and protective sleeve (35). The handle (31) is provided with the anti-slip texture (32), which is spiral-shaped. The clamping block (33) is fixedly installed on both ends of the handle (31), and the stabilizing groove (34) is opened on the clamping block (33). The protective sleeve (35) is fixedly installed on the handle (31).

6. A ceramic crucible according to claim 1, characterized in that: The sealing assembly (4) includes a vent cap (41), a sealing cap (42), and a hanging ear (43). The vent cap (41) is movably installed on the cup body (2). The sealing cap (42) is rotatably installed above the vent cap (41). The hanging ear (43) is fixedly installed on the vent cap (41) and the sealing cap (42). The two hanging ears (43) are arranged opposite to each other. A clamping groove (431) is provided below the hanging ear (43). The clamping groove (431) is rectangular.

7. A ceramic crucible according to claim 6, characterized in that: A sealing groove (411) is provided below the vent cover (41), and vent holes (412) are evenly distributed on the vent cover (41). The number of vent holes (412) decreases outward in sequence. An installation protrusion (413) is provided on the side of the vent cover (41), and a mating hole (414) is provided on the installation protrusion (413).

8. A ceramic crucible according to claim 7, characterized in that: The sealing cover (42) has a mating protrusion (421) fixedly installed on its side. A rotating groove (422) is provided below the mating protrusion (421). The rotating groove (422) is 3 / 4 cylindrical.

9. A ceramic crucible according to claim 1, characterized in that: The safety component (5) includes a sealing shell (51), a sliding cavity (52), a transition cavity (53), an air inlet (54), a fixing pin (55), and a sliding block (56). The sealing shell (51) is installed on the outer surface of the cup body. The sliding cavity (52) is opened inside the sealing shell (51). The transition cavity (53) is opened inside the sealing shell (51). The sliding cavity (52) and the transition cavity (53) are cylindrical. The radius of the transition cavity (53) is 0.5-0.8 times the radius of the sliding cavity (52). The fixing pin (55) is installed on the inner surface of the sliding cavity (52). The sliding block (56) is installed inside the sliding cavity (52).

10. A ceramic crucible according to claim 9, characterized in that: The upper part of the sliding block (56) is a sliding rod (561). The outer surface of the sliding rod (561) is provided with a rotating groove (562). The rotating groove (562) is spiral-shaped. A piston (563) is installed below the sliding rod (561). The radius of the piston (563) is the same as the radius of the sliding cavity (52). A rotating pin (564) is installed above the sliding rod (561). The rotating pin (564) is semi-cylindrical.

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