An integrated digestion tube cover

Abstract

The utility model discloses an integrated digestion tube cover, including cover and tight board, the bottom of cover (3) is provided with the sealing plug (4) to each digestion tube (5) correspondingly, and each sealing plug (4) can be loaded into the pipe orifice (6) of digestion tube (5) to realize primary positioning seal, the bottom of tight board (1) is equipped with the tight plug (2) to each sealing plug (4) correspondingly, and tight hole is set up on the corresponding position of cover (3). The utility model discloses through cover (3) integrated setting multiple sealing plugs, and the compression of cooperation tight board can simultaneously to multiple digestion tube (5) carry out quick installation and seal, avoided the operation of covering one by one, significantly improved the experimental efficiency, and when disassembling, through first removing tight board (1) can remove seal, easy operation, and the sealed performance is good, has the advantages such as reasonable structure, convenient to use and high experimental safety.

Description

Technical Field

[0001] This utility model relates to an experimental apparatus, specifically an integrated digestion tube cap. Background Technology

[0002] In the process of detecting heavy metal content in metal samples in a chemical laboratory, a certain mass of the metal sample is usually weighed and placed into an open digestion tube. Appropriate amounts of nitric acid and hydrochloric acid are added, and the digestion tube is then placed on a hot plate to heat and complete the digestion. Whether the digestion tube is capped during the digestion process and the method of capping directly affect the efficiency and safety of the experimental operation.

[0003] Currently, there are two main approaches: The first is to heat directly without a cap. While this method is simple, it generates a large amount of acid fumes and gas during heating, which can easily pollute the experimental environment and harm the health of laboratory personnel. The second approach is to cap each digestion tube individually to reduce acid fumes through sealing. However, the process of capping and removing the caps individually requires a lot of manual labor, which is time-consuming and tedious, especially when multiple digestion tubes need to be processed simultaneously, resulting in low efficiency. In addition, due to the fragility of the digestion tubes themselves, improper handling during capping or removal can damage the tube openings or interrupt the experiment.

[0004] To address the aforementioned issues, some improvement schemes have attempted to enhance operational efficiency by using modular tube racks or standardized pressure plates, but shortcomings remain. For example, some schemes lack reliable sealing performance, easily leading to acid evaporation due to incomplete sealing; others have complex structures, making disassembly and assembly inconvenient and unsuitable for high-frequency experimental use. Furthermore, traditional digestion tube cap designs typically require precise alignment between the sealing plug and the tube opening, resulting in high accuracy requirements during installation and impacting operational convenience and fault tolerance. After the experiment, traditional sealing methods often result in a tight seal between the sealing plug and the tube opening, making removal difficult and requiring the digestion tubes to be secured before individually removing the seals, increasing the workload for experimental personnel. Utility Model Content

[0005] To address the aforementioned issues, this invention provides an integrated digestion tube cap that features a reasonable structure, simple operation, and the ability to simultaneously achieve rapid installation and reliable sealing, while also being easy to disassemble. This solves the problems of low sealing efficiency, cumbersome operation, insufficient sealing reliability, and inconvenience in removal found in existing technologies, thereby improving the safety and efficiency of digestion operations in chemical experiments.

[0006] This utility model is achieved through the following technical solution: an integrated digestion tube cap, comprising: A cover plate, wherein a sealing plug is provided at the bottom of the cover plate corresponding to each digestion tube, and an opening is provided at the top of the digestion tube, and each sealing plug is inserted into the digestion tube corresponding to the opening; A tensioning plate is provided at the bottom of the tensioning plate corresponding to the position of each sealing plug. A tensioning hole is provided on the cover plate corresponding to each tensioning plug. The tensioning hole extends into the sealing plug and increases the outer diameter of the sealing plug through the tensioning plug.

[0007] As a preferred technical solution, the outer diameter of the sealing plug is smaller than the inner diameter of the pipe opening.

[0008] As a preferred technical solution, the outer diameter of the tensioning plug is larger than the inner diameter of the tensioning hole, and when the tensioning plug is installed into the tensioning hole, the sealing plug is sealed and assembled with the pipe opening.

[0009] As a preferred technical solution, the tensioning plate is a flexible plate, and a connection hole is opened on the tensioning plate corresponding to the position of each tensioning plug.

[0010] As a preferred technical solution, each tension plug has a connecting section at its top, the connecting section passes through the connecting hole and has a limiting part, and the tension plug can be removed from the tension plate by external force.

[0011] As a preferred technical solution, the cross-section of each of the expansion plugs is conical.

[0012] As a preferred technical solution, the inner diameter of the tensioning hole is larger than the outer diameter of the tensioning plug, and the top of the tensioning hole is a tapered guide hole.

[0013] The beneficial effects of this utility model are as follows: The integrated digestion tube cap provided by this utility model achieves simultaneous and rapid sealing of multiple digestion tubes by integrally arranging multiple sealing plugs at the bottom of the cap plate and cooperating with a detachable tensioning plate and tensioning plug structure. Since the outer diameter of the sealing plug is smaller than the inner diameter of the tube opening, the alignment requirements during installation are not high, allowing for easy insertion into each digestion tube. This ensures ease of operation while avoiding the installation difficulties caused by the high positioning accuracy requirements of traditional structures. The tensioning plug expands radially after being pressed into the tensioning hole, reliably forming a sealing fit with the tube opening, effectively preventing the volatilization of acid and acid mist during digestion and ensuring the safety of the experimental environment. During use, researchers only need to press the entire cover plate onto multiple digestion tubes at once, and then press down the tensioning plate to cause each sealing plug to expand synchronously, thus achieving rapid sealing. This significantly reduces the tedious step of adding caps one by one and improves experimental efficiency. After the experiment, by first pulling out the tensioning plate and tensioning plug to release the tight pressure between the sealing plug and the tube opening, the entire cover plate can be removed to complete disassembly. This avoids the difficulty of disassembling each tube individually due to excessive tightness in the seal, further improving the convenience of operation, as there is no need for precise positioning of each digestion tube. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the exploded structure of this utility model; Figure 2 This is a schematic diagram of the overall sealing structure of this utility model; Figure 3 This is a cross-sectional schematic diagram of the present invention; Explanation of reference numerals in the attached figures: 3. Cover plate; 4. Sealing plug; 5. Dissolving tube; 6. Pipe opening; 1. Tensioning plate; 2. Tensioning plug; 7. Tensioning hole; 21. Connecting section; 22. Limiting part. Detailed Implementation

[0016] All features disclosed in this specification, or steps in all methods or processes disclosed herein, may be combined in any way, except for mutually exclusive features and / or steps.

[0017] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0018] like Figures 1-3As shown, the integrated digestion tube 5 cover provided by this utility model includes an integral cover plate 3 structure. At the bottom of the cover plate 3, multiple sealing plugs 4 are integrally formed according to the arrangement of the digestion tubes 5. The position of each sealing plug 4 corresponds to the opening 6 of the digestion tube 5 below. When the cover plate 3 is installed above the digestion tube 5 group, each sealing plug 4 can be simultaneously inserted into the corresponding opening 6 of the digestion tube 5. To ensure ease of assembly, the outer diameter of the sealing plug 4 is designed to be slightly smaller than the inner diameter of the opening 6 of the digestion tube 5. Therefore, precise alignment is not required during installation; simply pressing down the cover plate 3 allows each sealing plug 4 to be inserted smoothly into the opening of the digestion tube 5, effectively solving the problem of high alignment requirements and complex operation associated with traditional independent plugs.

[0019] A tensioning plate 1 is provided above the cover plate 3, and the tensioning plate 1 is used in conjunction with the cover plate 3 by covering it entirely. At the bottom of the tensioning plate 1, corresponding to the position of each sealing plug 4, a tensioning plug 2 is provided. The tensioning plug 2 acts on the sealing plug 4 by cooperating with the tensioning hole 7 on the cover plate 3. Each tensioning hole 7 on the cover plate 3 extends into the interior of the sealing plug 4. When the tensioning plug 2 is inserted into the tensioning hole 7, because the outer diameter of the tensioning plug 2 is larger than the inner diameter of the tensioning hole 7, it can force the sealing plug 4 to expand radially during downward insertion, thereby making the sealing plug 4 fit tightly against the inner wall of the digestion tube 5 opening 6, forming a reliable seal. In this way, the sealing plug 4, whose outer diameter is originally smaller than the opening 6, can achieve a stable sealing effect after expansion, effectively preventing the volatilization of acid and acid mist during heating and digestion, and ensuring the safety of the experimental environment.

[0020] In terms of specific structure, the tensioning plate 1 is made of a flexible sheet material. This flexible sheet can adapt to slight differences in the positions of the multiple digestion tubes 5 during installation, ensuring that the tensioning plugs 2 can be smoothly inserted into each tensioning hole 7 and simultaneously act on all the sealing plugs 4. To further facilitate the fixing and removal of the tensioning plugs 2, a connecting hole is provided at the position of each tensioning plug 2 on the tensioning plate 1. A connecting section 21 is provided at the top of the tensioning plug 2, which can pass through the connecting hole and form a limiting part 22 above it, thereby preventing the tensioning plug 2 from falling off during use. Due to the design of the connecting section 21 and the limiting part 22, the tensioning plug 2 can be removed from the tensioning plate 1 by external force when needed, making replacement and maintenance more convenient.

[0021] Each tension plug 2 has a tapered cross-section. This tapered structure facilitates the gradual increase of radial pressure on the sealing plug 4 during insertion, making the sealing process smoother and more controllable. Simultaneously, a tapered guide hole is provided on the tensioning hole 7 of the cover plate 3. The inner diameter of the tapered guide hole is larger than the outer diameter of the tension plug 2, which guides the tension plug 2 during insertion, ensuring a smoother fit between the tension plug 2 and the sealing plug 4. This tapered guide design eliminates the need for excessive alignment during installation, allowing the tension plug 2 to accurately enter the sealing plug 4, thus improving the overall ease of assembly.

[0022] During use, the experimenter simply aligns the cover plate 3 with the multiple digestion tubes 5, then presses it down to insert the sealing plugs 4 into the openings of the digestion tubes 5 sequentially. Thanks to the design that the outer diameter of the sealing plugs 4 is slightly smaller than the inner diameter of the tube openings 6, the entire process requires no high-precision positioning, making the operation very simple. After the initial insertion, pressing down the tensioning plate 1 causes the tensioning plugs 2 to simultaneously insert into the tensioning holes 7 of the cover plate 3, causing the sealing plugs 4 to expand radially, ultimately achieving a complete seal at the openings 6 of each digestion tube 5. This process can seal multiple digestion tubes 5 in one go, significantly reducing the tedious step of inserting plugs one by one and improving the efficiency of the experimental operation.

[0023] After the experiment, removing the cover of the digestion tube 5 is equally simple. The experimenter only needs to pull the tension plate 1 upwards as a whole, then pull each tension plug 2 out of the tension hole 7. The sealing plug 4, freed from external pressure, returns to its original size, and the tight fit between it and the opening 6 of the digestion tube 5 is released. At this point, the cover plate 3 and each sealing plug 4 can be easily removed as a whole. This process avoids the laborious traditional method of removing seals one by one, and significantly reduces the workload of the experimenter, especially when frequent replacements or large-scale experiments are required.

[0024] The integrated digestion tube 5 cover of this utility model, through the cooperation of the cover plate 3, sealing plug 4, tensioning plate 1, tensioning plug 2 and related structures, not only ensures the efficiency of assembly and disassembly during operation, but also improves the reliability of sealing, avoids the leakage of acid and acid mist during the digestion process, improves the experimental environment, and effectively solves the problems of high alignment requirements, cumbersome operation and difficult disassembly in the prior art.

[0025] 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 changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. An integrated digestion tube cap, characterized in that, include: A cover plate (3) is provided at the bottom of the cover plate (3) corresponding to each digestion tube (5), and a tube opening (6) is provided at the top of the digestion tube (5). Each sealing plug (4) is inserted into the digestion tube (5) corresponding to the tube opening (6). Tensioning plate (1), with a tensioning plug (2) provided at the bottom of the tensioning plate (1) corresponding to the position of each sealing plug (4), and a tensioning hole (7) provided on the cover plate (3) corresponding to each tensioning plug (2), the tensioning hole (7) extending into the sealing plug (4), and increasing the outer diameter of the sealing plug (4) through the tensioning plug (2).

2. The integrated digestion tube cap according to claim 1, characterized in that: The outer diameter of the sealing plug (4) is smaller than the inner diameter of the pipe opening (6).

3. The integrated digestion tube cap according to claim 2, characterized in that: The outer diameter of the tension plug (2) is larger than the inner diameter of the tension hole (7). When the tension plug (2) is installed into the tension hole (7), the sealing plug (4) is sealed and assembled with the pipe opening (6).

4. The integrated digestion tube cap according to claim 1, characterized in that: The tensioning plate (1) is a flexible plate, and a connection hole is opened on the tensioning plate (1) corresponding to the position of each tensioning plug (2).

5. The integrated digestion tube cap according to claim 4, characterized in that: Each tension plug (2) has a connecting section (21) at its top. The connecting section (21) passes through the connecting hole and is provided with a limiting part (22). The tension plug (2) can be removed from the tension plate (1) by external force.

6. The integrated digestion tube cap according to claim 1, characterized in that: Each of the expansion plugs (2) has a conical cross-section.

7. The integrated digestion tube cap according to claim 1, characterized in that: The inner diameter of the tensioning hole (7) is larger than the outer diameter of the tensioning plug (2), and the top of the tensioning hole (7) is a tapered guide hole.

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