Sample testing turntable for moisture tester and moisture tester

Abstract

The utility model discloses a moisture tester and a sample test turntable for the moisture tester, the sample test turntable comprises a turntable body, a plurality of positioning through holes for placing sample bottles are annularly distributed on the turntable body, and positioning parts for preventing the sample bottles from shifting are embedded on the inner side walls of the positioning through holes. Compared with the prior art, the double-tube trocar has the advantages that the sample bottle is accurately positioned through the positioning component, the stability of the sample bottle in the horizontal direction and the vertical direction is ensured, the double-tube trocar can be accurately aligned to a bottle opening when being inserted, the risk that the needle head deviates or is staggered is avoided, the service life of the needle head is greatly prolonged, and the maintenance and replacement cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of moisture testing instruments, and particularly relates to a sample testing turntable for a moisture tester and a moisture tester. Background Art

[0002] With the continuous development of science and technology and the increasing precision of industrial production, the accurate determination of the moisture content of substances has become increasingly important. The moisture content not only affects the physical and chemical properties of substances, such as solubility, conductivity, viscosity, etc., but is also closely related to the processing, storage, and use performance of substances. Therefore, moisture determination has a wide range of applications in many fields such as chemical industry, food, medicine, and agriculture.

[0003] At present, the Karl Fischer titration method is one of the commonly used methods for determining the moisture content of substances. This method uses iodine and sulfur dioxide as titrants, which react with water to form hydrogen iodide and sulfuric acid. By measuring the change in conductivity during the reaction, the moisture content in the sample can be accurately calculated. The Karl Fischer titration method is easy to operate and has a fast testing speed, and is suitable for the moisture determination of various liquid and solid samples.

[0004] However, the Karl Fischer titration method also has certain limitations. The moisture in many substances is released relatively slowly, or can only be fully released under high-temperature conditions. This results in the test results being often on the low side when directly titrating at room temperature, and cannot truly reflect the actual moisture content of the sample. To solve this problem, moisture testers are usually equipped with a heating furnace. By heating the sample, the moisture in the sample is fully evaporated and then introduced into the sampler for testing, which can effectively improve the accuracy and reliability of the test.

[0005] Although the use of the heating furnace solves the problem of sample moisture release, there are still some deficiencies in the existing moisture testers during the sample processing and transfer process. The sample test generally adopts a turntable design, and multiple sample bottles are placed on the turntable. By rotating the turntable, the sample bottles are sequentially moved to the working positions of the heating furnace and the sampler. However, the existing sample testing turntables often have difficulty in effectively positioning the sample bottles, resulting in the sample bottles being prone to tilting or shifting during rotation. This not only affects the testing efficiency, but may also cause improper cooperation between the sample bottles and the heating furnace or the sampler, and even pose a safety hazard.

[0006] In particular, after the sample bottle is moved to the working position of the sampler, it is necessary to inject dry carrier gas into the sample bottle through a double-barrel sleeve needle. However, due to inaccurate positioning of the sample bottle, the double-barrel sleeve needle is prone to shift during insertion, resulting in the needle tip being misaligned with the bottle mouth, causing wear or damage to the needle tip. This not only greatly shortens the service life of the double-barrel sleeve needle, increases the maintenance and replacement costs, but may also lead to test failure or data distortion due to needle tip damage, affecting the reliability of the test results.

[0007] In view of this, it is indeed necessary to provide a technical solution to solve the above problems. Utility Model Content

[0008] The purpose of the present utility model is: aiming at the deficiencies of the prior art, to provide a sample test turntable for a moisture tester, which can effectively prevent the sample bottle from tilting and shifting, improve the test efficiency and the service life of the needle, and reduce the maintenance and use costs.

[0009] To achieve the above purpose, the present utility model provides the following technical solutions:

[0010] A sample test turntable for a moisture tester, comprising a turntable body, wherein a plurality of positioning through holes for placing sample bottles are annularly distributed on the turntable body, and a positioning component for preventing the sample bottle from shifting is embedded on the inner side wall of the positioning through hole.

[0011] Preferably, the turntable body includes an annular body, an installation part arranged in the middle of the annular body, and a connecting part arranged between the annular body and the installation part; wherein, a plurality of the positioning through holes are evenly distributed along the annular body.

[0012] Preferably, an installation hole is arranged in the middle of the installation part for installing the test turntable above the heating furnace plate of the moisture tester.

[0013] Preferably, the inner side wall of the positioning component is mutually attached to the outer wall of the bottle body of the sample bottle.

[0014] Preferably, the area of the positioning component wrapping the bottle body of the sample bottle is 40 - 100%.

[0015] Preferably, the positioning component is a hollow tubular structural member.

[0016] Preferably, the positioning component includes a plurality of arc-shaped pieces, and a plurality of the arc-shaped pieces are evenly distributed along the inner side wall of the positioning through hole.

[0017] Preferably, the positioning component is made of a metal material or a plastic material.

[0018] Preferably, the positioning component and the turntable body are of a split structure or an integrally formed structure.

[0019] In addition, the present utility model also provides a moisture tester, including the above-mentioned sample test turntable for a moisture tester.

[0020] Compared with the prior art, the present utility model has at least the following beneficial effects:

[0021] 1) The positioning accuracy of the sample vial is improved, preventing the sample vial from tilting or shifting. In the present utility model, a plurality of positioning through-holes for placing the sample vial are provided on the turntable body, and positioning components are embedded on the inner side wall of the positioning through-holes. Among them, the positioning components can be mutually attached to the outer wall of the vial body of the sample vial to form a surface support, effectively positioning and supporting the sample vial, preventing it from horizontally moving or tilting during rotation. Therefore, the sample vial can be positioned more comprehensively and stably, greatly improving the positioning accuracy.

[0022] 2) The risk of damage to the double-barrel sleeve needle is reduced, and its service life is extended. In the prior art, due to inaccurate positioning of the sample vial, the double-barrel sleeve needle is prone to shift when inserted into the sample vial, resulting in the misalignment of the needle tip and the bottle mouth, causing wear or damage to the needle tip. However, in the present utility model, the sample vial is accurately positioned through the positioning components, ensuring its stability in both the horizontal and vertical directions. The double-barrel sleeve needle can accurately align with the bottle mouth during insertion, avoiding the risk of needle tip shift or misalignment, thereby greatly extending the service life of the needle tip and reducing the maintenance and replacement costs. Description of the Drawings

[0023] Figure 1 It is one of the structural schematic diagrams of the sample test turntable for a moisture tester according to an embodiment of the present application;

[0024] Figure 2 It is the second structural schematic diagram of the sample test turntable for a moisture tester according to an embodiment of the present application;

[0025] Figure 3 It is the structural schematic diagram of the sample test turntable for a moisture tester according to an embodiment of the present application with a sample vial placed thereon;

[0026] Figure 4 It is the structural schematic diagram of a moisture tester according to an embodiment of the present application.

[0027] In the figure: 1, turntable body; 11, annular body; 12, mounting part; 13, connecting part; 14, mounting hole; 2, positioning through-hole; 3, positioning component; 4, sample vial; 100, moisture tester. Detailed Embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] In the description of the present application, unless otherwise specified or stated, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0030] Please refer to the attached Figures 1 to 3 , a sample test turntable for a moisture tester provided by the present application includes a turntable body 1. The turntable body 1 is annularly distributed with a plurality of positioning through holes 2 for placing sample bottles 4, and a positioning member 3 for preventing the sample bottles 4 from shifting is embedded in the inner side wall of the positioning through holes 2.

[0031] Among them, the present application precisely positions the sample bottle 4 through the positioning member 3 to ensure its stability in both the horizontal and vertical directions. When the double-barrel sleeve needle is inserted, it can accurately align with the bottle mouth, avoiding the risk of needle deviation or misalignment, thereby greatly extending the service life of the needle and reducing the maintenance and replacement costs.

[0032] In an embodiment according to the present application, the turntable body 1 includes an annular body 11, a mounting portion 12 provided in the middle of the annular body 11, and a connecting portion 13 provided between the annular body 11 and the mounting portion 12; among them, a plurality of positioning through holes 2 are evenly distributed along the annular body 11. The turntable body 1 adopts a structural design in which the annular body 11 is combined with the mounting portion 12 through the connecting portion 13, and a plurality of through holes are evenly distributed on the annular body 11. This structure not only facilitates the insertion, removal, and transfer of the sample bottle 4, but also can maximize the number of samples tested at one time by reasonably arranging the number and positions of the through holes, thereby improving the test efficiency. At the same time, the annular design of the turntable body 1 also facilitates spatial cooperation with other components of the moisture analyzer (such as a heating furnace, a sampler, etc.) to achieve a compact layout and automated operation.

[0033] In an embodiment according to the present application, the connecting portion 13 includes a plurality of connecting strips. The plurality of connecting strips are grouped in twos and evenly distributed between the annular body 11 and the mounting portion 12. It can reduce the material consumption while ensuring the connection stability between the annular body 11 and the mounting portion 12.

[0034] In an embodiment according to the present application, an installation hole 14 is provided in the middle of the mounting portion 12 for mounting the test turntable above the heating furnace plate of the moisture tester. Through the cooperation of the installation hole 14 and the heating furnace plate, the installation position of the turntable can be accurately positioned to prevent the turntable from shifting or shaking during high-speed rotation, improving the stability and reliability of the test process. At the same time, the design of the installation hole 14 also facilitates the disassembly and replacement of the turntable, improving the maintenance efficiency of the turntable.

[0035] In an embodiment according to the present application, the inner sidewall of the positioning member 3 is in close contact with the outer wall of the bottle body of the sample bottle 4, effectively positioning and supporting the sample bottle 4 to prevent it from undergoing horizontal movement or tilting during rotation.

[0036] In an embodiment according to the present application, the area of the positioning member 3 wrapping the bottle body of the sample bottle 4 is 40-100%. In practical applications, the appropriate wrapping area can be flexibly selected according to the size, shape of the sample bottle 4 and the required positioning accuracy. A larger wrapping area can provide more stable support and positioning, and is suitable for occasions with higher requirements for test accuracy; while a smaller wrapping area can, while ensuring the basic positioning effect, reduce the size and material consumption of the positioning member 3, reduce the manufacturing cost, and improve the economy.

[0037] In an embodiment according to the present application, the positioning member 3 is a hollow tubular structural member. Among them, the inner wall of the tubular structural member is in close contact with the outer wall of the sample bottle 4, playing an all-round constraining and positioning role on the sample bottle 4, effectively preventing the sample bottle 4 from tilting or shifting.

[0038] In an embodiment according to the present application, the positioning member 3 includes a plurality of arc-shaped pieces, and the plurality of arc-shaped pieces are uniformly distributed along the inner sidewall of the positioning through-hole 2. Among them, the uniformly distributed arc-shaped pieces can, while reducing the material consumption, provide multi-faceted support to prevent the sample bottle 4 from tilting.

[0039] In an embodiment according to the present application, the positioning member 3 is made of a metal material or a plastic material. Among them, the positioning member 3 can be selected from metal or plastic, which can not only meet the requirements of strength and durability, but also be easy to process and manufacture, and adapt to different sample characteristics and process conditions. Among them, the metal can be selected from iron, aluminum, copper, etc.; the plastic can choose high-temperature resistant materials, such as polytetrafluoroethylene.

[0040] In an embodiment according to the present application, the positioning member 3 and the turntable body 1 are of a split structure or an integrally formed structure. Among them, the split structure facilitates the independent design and optimization of the positioning member 3, and the best structure and material can be selected for different types of sample bottles 4 to improve the versatility; while the integrally formed structure can simplify the production process, reduce the assembly link, reduce the manufacturing cost, and improve the overall strength and stability of the turntable. The appropriate structural form can be flexibly selected according to actual needs.

[0041] In addition, as Figure 4As shown in the figure, the present application also provides a moisture tester 100, which includes a heating furnace plate and the above-mentioned sample test turntable for the moisture tester 100 installed above the heating furnace plate. Installing the turntable in the moisture tester 100 can give full play to the advantages of precise positioning and efficient sample transfer of the turntable, work together with components such as the heating furnace and sampler of the tester, realize fully automatic and high-precision moisture testing, and improve the testing efficiency and accuracy. Among them, as a key component of the moisture tester 100, the turntable can significantly improve the performance and practical value of the moisture tester 100, bringing a better and more convenient testing experience.

[0042] When conducting sample testing, the sample bottle 4 is placed on the test turntable and heated through the heating furnace plate, and the moisture therein is vaporized. The double-barrel sleeve needle is inserted into the sample bottle 4, and dry carrier gas is introduced into the sample bottle 4 to carry the vaporized moisture to the titration cup for Karl Fischer moisture determination.

[0043] It should be noted that the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art and will not be elaborated here.

[0044] According to the disclosure and teaching of the above specification, those skilled in the art of the present utility model can also make changes and modifications to the above embodiments. Therefore, the present utility model is not limited to the above specific embodiments, and any obvious improvements, substitutions or variations made by those skilled in the art on the basis of the present utility model all belong to the protection scope of the present utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present utility model.

Claims

1. A sample testing turntable for a moisture tester, characterized in that: It includes a turntable body, and a plurality of positioning through holes for placing sample bottles are annularly distributed on the turntable body. A positioning component for preventing the sample bottle from shifting is embedded in the inner side wall of the positioning through hole.

2. The sample testing turntable for the moisture tester according to claim 1, wherein: The turntable body includes an annular body, a mounting portion provided in the middle of the annular body, and a connecting portion provided between the annular body and the mounting portion; wherein, a plurality of the positioning through holes are uniformly distributed along the annular body.

3. The sample test turntable for a moisture tester according to claim 2, characterized in that: An installation hole is provided in the middle of the mounting portion.

4. The sample testing turntable for a moisture tester according to claim 1, wherein: The inner side wall of the positioning component is mutually attached to the outer wall of the bottle body of the sample bottle.

5. The sample testing turntable for a moisture tester according to claim 1, characterized in that: The area of the positioning component wrapping the bottle body of the sample bottle is 40-100%.

6. The sample testing turntable for a moisture tester according to claim 1, wherein: The positioning component is a hollow tubular structural member.

7. The sample testing turntable for a moisture tester according to claim 1, wherein: The positioning component includes a plurality of arc-shaped pieces, and the plurality of arc-shaped pieces are uniformly distributed along the inner side wall of the positioning through hole.

8. The sample testing turntable for a moisture tester according to claim 1, wherein: The positioning component is made of metal material or plastic material.

9. The sample testing turntable for a moisture tester according to claim 1, wherein: The positioning component and the turntable body are of a split structure or an integrally formed structure.

10. A moisture tester, characterized in that: It includes a sample test turntable for a moisture tester according to any one of claims 1-9.

Images