Crucible cover and crucible

Abstract

The utility model discloses a crucible cover and a crucible, relates to the technical field of experimental tools, and is used for solving the problem that when the crucible is used for reaction, multiple tools are separately operated, the steps are tedious, and operation errors are easily caused. The crucible cover comprises a cover body, a cavity is formed in the cover body, scale marks are arranged on the inner wall of the cavity, an opening is formed in the top of the cover body and used for injecting and pouring out reaction liquid, and the bottom of the cover body is of a closed structure and used for covering the crucible. The crucible comprises a crucible body and the crucible, the crucible body is provided with a reaction cavity, and the cross section area of the bottom of the reaction cavity is smaller than that of the top; the crucible cover is detachably inserted into the reaction cavity in the axial direction and covers the top of the crucible body, and a gap is formed between the bottom of a cover body of the crucible cover and the bottom of the reaction cavity.

Description

Technical Field

[0001] This utility model relates to the field of experimental tool technology, and in particular to a crucible lid and a crucible. Background Technology

[0002] Crucibles are an important component of chemical apparatus. They serve as containers for melting and refining molten metals, as well as for solid-liquid heating and reactions, and are fundamental to ensuring the smooth progress of chemical reactions. In traditional crucible-based reactions, the measurement and transfer of liquids heavily rely on separate tools such as graduated cylinders and pipettes. Measuring liquids requires a graduated cylinder or pipette, while transferring liquids necessitates switching to the crucible, which is then sealed with a lid. This separation of tools forces operators to repeatedly handle and change equipment, making the process cumbersome and prone to errors due to operational mistakes. Utility Model Content

[0003] The purpose of this invention is to provide a crucible lid and a crucible to solve the problem of liquid measurement in crucible reactions relying on external tools, simplify the operation process and reduce the risk of errors caused by tool switching or operational redundancy.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] In a first aspect, this utility model provides a crucible lid, including a lid body, an interior cavity, graduation lines on the inner wall of the cavity, an opening at the top of the lid body for injecting and pouring out reaction liquid, and a closed structure at the bottom of the lid body for covering the crucible.

[0006] Optionally, in the crucible lid described above, a spoon-shaped flow guide is provided on the outer periphery of the opening of the lid body. The spoon-shaped flow guide has an arc-shaped concave structure, and multiple flow diversion holes are opened at the bottom of the spoon-shaped flow guide.

[0007] Optionally, in the crucible lid described above, the cross-section of the cavity is circular, and the radius of the cross-section of the cavity gradually increases from the bottom to the top.

[0008] Optionally, in the crucible lid described above, the sidewall of the cavity is composed of multiple annular steps, which are distributed in a stepped manner from bottom to top.

[0009] Optionally, in the above-mentioned crucible lid, a handle is fixedly provided on the outer wall of the lid body.

[0010] Optionally, in the crucible lid described above, the handle may be in the shape of a straight line, a teardrop shape, or a T-shape.

[0011] Optionally, in the above-mentioned crucible lid, the outer wall surface of the lid is a cylindrical surface.

[0012] Compared with existing technologies, the crucible lid provided by this invention has an internal cavity with graduated lines on its inner wall. After injecting the reaction liquid through the top opening, the liquid level can be aligned with the graduated lines for direct measurement. After measurement, the reaction liquid is poured into the crucible through the top opening, completing the transfer of the reaction liquid. Then, the lid is fitted onto the crucible through its bottom sealing surface to seal it. This structural design integrates the functions of measuring and transferring the reaction liquid, as well as sealing the crucible, into a single unit. This solves the problems of low efficiency and high error risk caused by tool separation in traditional operations, thus improving experimental efficiency and reliability.

[0013] Secondly, this utility model provides a crucible, comprising:

[0014] The crucible body has a reaction chamber.

[0015] The crucible lid mentioned above is detachably inserted into the reaction chamber along the axial direction and covers the top of the crucible body, with a gap between the bottom of the lid and the bottom of the reaction chamber.

[0016] Optionally, in the crucible described above, the outer wall of the crucible lid is provided with an annular sealing ring along the circumferential direction. The annular sealing ring is made of an elastic material and is used to seal and fit with the reaction chamber.

[0017] Optionally, in the crucible described above, an annular flange is fixedly provided on the outer wall of the crucible in the circumferential direction.

[0018] Compared with existing technologies, the crucible provided by this invention features a crucible lid that, when inserted into the reaction chamber of the crucible body, has a gap between the bottom of the lid and the bottom of the reaction chamber. This gap serves as the reaction space for the reactants. The axially detachable insertion design ensures a proper fit with the reaction chamber. Specifically, after transferring the reaction liquid from the lid to the crucible, the bottom of the lid is aligned with the top opening of the reaction chamber and inserted. Due to its size being between the bottom and top of the reaction chamber, the lid naturally limits its position during insertion due to its own gravity, ensuring precise alignment between the lid and the reaction chamber. After insertion, the bottom of the lid and the side wall of the reaction chamber form a stable connection, guaranteeing a tight seal and preventing liquid evaporation and vapor leakage during the reaction. This self-locking insertion of the lid into the reaction chamber simplifies the operation and reduces the risk of sealing failure due to misalignment. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0020] Figure 1 A cross-sectional schematic diagram of a crucible lid provided for an embodiment of this utility model;

[0021] Figure 2 A top view schematic diagram of a crucible lid provided for an embodiment of this utility model;

[0022] Figure 3 This is a schematic diagram of the overall structure of a crucible provided in an embodiment of the present invention.

[0023] Figure label:

[0024] 1 is the crucible lid, 10 is the lid body, 101 is the cavity, 102 is the spoon-shaped guide part, 1020 is the flow divider hole, 103 is the annular step, 11 is the handle, 2 is the crucible, 20 is the crucible body, 201 is the reaction chamber, and 21 is the annular flange. Detailed Implementation

[0025] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on or indirectly on the other component. When a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Please see Figure 1 and Figure 2 The crucible lid 1 provided in this embodiment of the present invention includes a lid body 10, a cavity 101 inside the lid body 10, a scale line on the inner wall of the cavity 101, an opening at the top of the lid body 10 for injecting and pouring out the reaction liquid, and a closed structure at the bottom of the lid body 10 for covering the crucible 2.

[0031] Compared with existing technologies, the crucible lid 1 provided by this invention has an internal cavity 101 in its lid body 10. The inner wall of the cavity 101 is marked with graduations. After injecting the reaction liquid through the top opening, the liquid level can be directly measured by aligning it with the graduations. After measurement, the reaction liquid is poured into the crucible 2 through the top opening, completing the transfer of the reaction liquid. Then, the lid body 10 is fitted onto the crucible 2 through its bottom sealing surface, sealing the crucible 2. Through this structural design, the cavity 101 and graduations integrate the functions of measuring and transferring the reaction liquid, as well as the sealing function of the lid body 10 on the crucible 2. This solves the problems of low efficiency and high error risk caused by tool separation in traditional operations, improving experimental efficiency and reliability.

[0032] As one possible implementation, such as Figure 1 and Figure 2 As shown, the crucible lid 1 is also provided with a spoon-shaped flow guide 102. The spoon-shaped flow guide 102 has an arc-shaped concave structure and is located on the outer edge of the opening. Multiple flow diversion holes 1020 are opened at the bottom of the spoon-shaped flow guide 102.

[0033] In practice, when the reaction liquid is poured into crucible 2 through the opening, the liquid flow first enters the spoon-shaped guide section 102, and is divided into multiple fine streams through the diversion hole 1020. This reduces the flow velocity and impact force of each individual liquid stream, thereby reducing the concentrated impact of the liquid on the inner wall of crucible 2 or the molten material. The divided fine streams diffuse smoothly along the arc-shaped guide surface, avoiding residue splashing or droplet rebound caused by violent liquid flow disturbance, ensuring the accuracy of material transfer and the stability of the reaction during the experiment. This design effectively suppresses the influence of splashes on the experimental results through liquid flow dispersion.

[0034] As one possible implementation, such as Figure 2 As shown, the cross-section of cavity 101 is circular, and the radius of the cross-section of cavity 101 gradually increases from bottom to top. In practice, as the radius of cavity 101 gradually expands from bottom to top, the liquid surface naturally extends within the flared area, and the spacing between the scale lines corresponding to the liquid level height increases accordingly. This makes the alignment of the liquid surface with the scale lines more intuitive during observation, reducing reading errors caused by liquid surface curvature or visual deviation. At the same time, the flared structure forms a gradient capacity space in the vertical direction, ensuring that the bottom can hold sufficient reaction liquid and avoiding the risk of overflow when the liquid is overfilled, thus ensuring the safety of the experiment and the tolerance of operational errors. This design, through the adaptation of the flared shape and the scale lines, simplifies the measurement operation while improving measurement accuracy. The gradually increasing radius gradient can also guide the liquid to flow towards the opening during pouring, reducing residue on the walls of cavity 101 and ensuring the reliability of quantitative transfer.

[0035] In some embodiments, the sidewall of cavity 101 can be configured as a smooth arc surface. While maintaining the capacity gradient and the easy observation of the scale lines, the slope of the arc surface can be selectively selected according to the viscosity of different fluids, thereby ensuring the versatility of the structure and the stability of the function while ensuring the measurement and transfer of the reaction liquid.

[0036] As one possible implementation, such as Figure 2 As shown, the sidewall of the cavity 101 is composed of multiple annular steps 103, which are distributed in a stepped manner from the bottom to the top.

[0037] In practice, after liquid injection, the liquid level rises gradually, covering the stepped plane. The scale lines on the sidewalls of the steps directly correspond to the liquid level height. This stepped scale calibration method makes readings faster and more intuitive, reducing the risk of visual misjudgment. During pouring, the liquid flows along the guide path formed by the edges of the steps towards the opening, reducing liquid residue on the stepped plane and ensuring the accuracy of the transferred amount. This design, through the scale layout and flow guiding characteristics of the stepped sidewalls, improves measurement accuracy while simplifying the cleaning and maintenance process. The rigid support of the stepped structure also enhances the deformation resistance of the sidewalls of cavity 101.

[0038] As one possible implementation, such as Figure 1 and Figure 2As shown, a handle 11 is fixed to the outer wall of the cap 10. The handle 11 extends outward from the top or side wall of the cap 10 to form a grip. In specific implementations, the handle 11 is designed with a teardrop shape, T-shape, or straight shape, etc., suitable for gripping, and the grip stability is enhanced by the transition of curved surfaces or edges; when performing liquid measurement, pouring, or capping operations, the extended structure of the handle 11 provides the user with a stable point of force application, avoiding the risk of slippage caused by direct contact with the cap 10. In some embodiments, the surface of the handle 11 may be provided with anti-slip textures, concave and convex grip grooves, and other auxiliary structures to further improve grip comfort and operation accuracy.

[0039] Furthermore, the handle 11 can be in the shape of a straight line, a teardrop shape, or a T-shape. The straight-line handle 11 has a simple structure, making it easy to quickly apply force or make adjustments in confined spaces; the teardrop-shaped handle 11 is ergonomic, conforming to the curvature of the palm when held, reducing the risk of slipping and improving operating comfort; the T-shaped handle 11 is more convenient for applying force.

[0040] As one possible implementation, the outer wall of the cover 10 is cylindrical. The cylindrical cover 10 forms a geometric match with the circular opening of the crucible 2, and directly covers the top opening of the crucible 2 by vertically closing it. Its fitting design can achieve rapid sealing without angle calibration, simplifying the operation process. At the same time, the inner wall of the cylindrical cavity 101 has scale lines evenly distributed along the axial direction, so there is no limitation on the viewing angle when observing, and the liquid level reading is intuitive and clear, reducing visual errors.

[0041] like Figures 1 to 3 As shown in the embodiment of this specification, a crucible 2 is also provided, including a crucible body 20 and any of the above-mentioned crucible lids 1; wherein, the crucible body 20 is provided with a reaction chamber 201, the bottom cross-sectional area of ​​the reaction chamber 201 is smaller than the top cross-sectional area; the crucible lid 1 is detachably inserted into the reaction chamber 201 along the axial direction and covers the top of the crucible body 20, and the bottom of the lid 10 of the crucible lid 1 has a gap with the bottom of the reaction chamber 201.

[0042] Compared with the prior art, the crucible 2 provided by this utility model has a reaction chamber 201 with a small bottom cross-sectional area and a large top cross-sectional area. When the crucible cover 1 is inserted into the reaction chamber 201, there is a gap between the bottom of the cover 10 and the bottom of the reaction chamber 201. This gap is the reaction space for the reactants. The axially detachable insertion design achieves a suitable fit with the reaction chamber 201. In specific implementation, after the reaction liquid is transferred from the crucible cover 1 to the crucible 2, the bottom of the crucible cover 1 is aligned with the top opening of the reaction chamber 201 and inserted. Due to its size being between the bottom and top of the reaction chamber 201, it is naturally limited by its own gravity during insertion, ensuring the precise alignment of the cover 10 and the reaction chamber 201. After insertion, the bottom of the crucible cover 1 and the side wall of the reaction chamber 201 form a stable connection through contact, ensuring the sealing effect of the reaction chamber 201 and preventing liquid evaporation and vapor overflow during the reaction. By inserting the crucible lid 1 into the reaction chamber 201 of the crucible 2, a self-locking mechanism is achieved, which simplifies the operation process and reduces the risk of sealing failure due to misalignment.

[0043] It should be noted that the crucible body 20 has a gradually expanding structure with a bottom cross-sectional area smaller than the top opening, while the bottom cross-sectional area of ​​the lid 10 of the crucible lid 1 is between the bottom and top of the crucible body 20. When the crucible lid 1 is inserted into the reaction chamber 201 along the axial direction, it can be inserted into the reaction chamber 201 because its bottom cross-sectional area is smaller than the cross-sectional area of ​​the opening of the crucible body 20. At the same time, because its bottom cross-sectional area is larger than the bottom cross-sectional area of ​​the reaction chamber 201, the bottom of the crucible lid 1 and the bottom of the reaction chamber 201 have cavities for the reaction liquid to react.

[0044] As one possible implementation, the outer wall of the crucible lid 1 is provided with an annular sealing ring along the circumference. The material of the annular sealing ring is an elastic material, which is used to seal and cooperate with the reaction chamber 201.

[0045] In practical implementation, the annular sealing ring can be supported by rubber, silicone, or rubber composite materials. When the crucible lid 1 is inserted into the crucible 2, the annular sealing ring located on the outer wall of the crucible lid 1 fills the gap between the reaction chamber 201 of the crucible lid 1 and the crucible 2 through its elastic deformation, forming a closed sealing interface. When the lid body 10 of the crucible lid 1 is inserted into the reaction chamber 201 of the crucible 2, the annular sealing ring expands radially under the pressure of the side wall. Its elastic properties ensure a uniform distribution of contact pressure, which can block the axial leakage path of gas or liquid during high-temperature reaction and maintain the sealing effect. This design improves the sealing reliability under high temperature and high pressure environments through the elastic mechanism of the annular sealing ring, and is further adapted to scenarios that require isolation from external interference, such as ash content testing and melting reactions.

[0046] As one possible implementation, such as Figure 3As shown, an annular flange 21 is fixedly provided on the outer side wall of the crucible 2 along the circumference. In specific implementation, the clamping tool can achieve a stable grip by clamping the side wall area of ​​the crucible 2 below the annular flange 21. The annular protrusion structure of the flange forms a physical limit to prevent the tool from slipping during the clamping process, which would cause the crucible 2 to accidentally tip over or fall.

[0047] In some embodiments, the outer wall of the crucible 2 is further provided with anti-slip textures, which are located below the annular flange 21. Specifically, the anti-slip textures can be designed as parallel stripes, grid grooves, or dot-matrix protrusions, etc., to increase the coefficient of friction of the clamping contact surface, making it less likely for the clamping tool to slip during gripping and enhancing clamping stability. Simultaneously, the anti-slip textures and the annular flange 21 form a coordinated upper and lower structure, and the clamping force is evenly transmitted to the sidewall of the crucible 2 through the dual effects of flange limiting and texture anti-slip, avoiding sidewall deformation or damage caused by localized stress concentration. This design, through the surface modification function of the textures, improves operational safety while extending the service life of the crucible 2.

[0048] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0049] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A crucible lid, characterized in that, The device includes a cover with an internal cavity and graduation lines on the inner wall of the cavity. The top of the cover has an opening for injecting and pouring out the reaction liquid, and the bottom of the cover is a closed structure for covering the crucible.

2. The crucible lid according to claim 1, characterized in that, The outer periphery of the opening of the cover is also provided with a spoon-shaped flow guide. The spoon-shaped flow guide has an arc-shaped concave structure, and multiple flow diversion holes are opened at the bottom of the spoon-shaped flow guide.

3. The crucible lid according to claim 1, characterized in that, The cavity has a circular cross-section, and the radius of the cross-section of the cavity gradually increases from the bottom to the top.

4. The crucible lid according to claim 3, characterized in that, The sidewall of the cavity is composed of multiple annular steps, which are distributed in a stepped manner from the bottom to the top.

5. The crucible lid according to claim 1, characterized in that, A handle is fixed to the outer wall of the cover.

6. The crucible lid according to claim 5, characterized in that, The handle can be in the shape of a straight line, a teardrop, or a T.

7. The crucible lid according to claim 1, characterized in that, The outer wall of the cover is cylindrical.

8. A crucible, characterized in that, include: The crucible body is provided with a reaction chamber; The crucible lid as described in any one of claims 1-7 is axially detachably inserted into the reaction chamber and covers the top of the crucible body, and the bottom of the lid has a gap with the bottom of the reaction chamber.

9. The crucible according to claim 8, characterized in that, The outer wall of the crucible lid is provided with an annular sealing ring along the circumference. The annular sealing ring is made of an elastic material and is used to seal with the reaction chamber.

10. The crucible according to claim 8, characterized in that, The outer wall of the crucible body is fixed with an annular flange along the circumferential direction.

Images