Sample preparation device for thermal cracking sampling

Abstract

The utility model provides a sample preparation device for thermal cracking sampling, and belongs to the technical field of inspection. A sample preparation device for thermal cracking sampling comprises a box body, an observation opening is formed in the upper portion of the box body, through holes allowing hands to stretch in are formed in the two opposite side walls of the box body, and a groove is formed in the bottom wall of the box body; the transparent plate is fixed on the box body and seals the observation opening; and the glass carrier plate is matched with the shape of the groove and can be placed in the groove. The utility model has the advantages of cleanness, safety and convenience in observation.

Description

Technical Field

[0001] The utility model belongs to the technical field of inspection, in particular to a sample preparation device for thermal cracking sampling. Background Art

[0002] Pyrolysis GC-MS can be used for daily analysis and testing of materials such as plastics and rubber. Due to the high precision of the equipment, only 10mg-20mg of sample mass is required during the test process. Too large a sample mass will cause overflow of the test signal and make it impossible to accurately analyze the sample. Therefore, engineers need to use a scalpel to cut the sample into a size of 10mg-20mg. Since the sample size is very small, a clean, accurate, and easy-to-observe sampling environment is required to ensure that the sampling is representative and will not affect the judgment of the test results.

[0003] Since there are no relevant sampling tools in the industry, and the manufacturers of thermal cracking equipment have not made relevant supporting devices, the laboratory can only do sampling work in glass culture dishes. On the one hand, the culture dish is exposed to an open environment, which is easy to cause contamination to the sample. On the other hand, the structure of the culture dish makes it difficult to cut the material with a scalpel. Summary of the invention

[0004] The utility model aims to solve the above problems in the prior art and proposes a sample preparation device for thermal cracking injection, which has the characteristics of being clean, safe and convenient for observation.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A sample preparation device for thermal cracking injection, comprising:

[0007] A box body, wherein an observation port is provided at the upper portion of the box body, through holes for inserting hands are provided on two opposite side walls of the box body, and a groove is provided on the bottom wall of the box body;

[0008] a transparent plate fixed to the box body and closing the observation port; and

[0009] A glass carrier is adapted to the shape of the groove and can be placed in the groove.

[0010] In the above-mentioned sample preparation device for thermal pyrolysis sampling, an inlet and an outlet are arranged on one side of the box body, and a box door is hinged on the box body, and the box door is used to close or open the inlet and the outlet.

[0011] In the above-mentioned sample preparation device for thermal cracking sampling, the transparent plate is made of glass material or acrylic material.

[0012] In the above-mentioned sample preparation device for thermal cracking sampling, the box body is made of aluminum alloy plate material.

[0013] In the above-mentioned sample preparation device for thermal cracking sampling, there is a gap of at least 1 cm between the bottom wall of the box body and the lower edge of the side wall of the box body, so that a limiting groove is formed between the side wall and the bottom wall.

[0014] In the above-mentioned sample preparation device for thermal pyrolysis sampling, two gloves corresponding to the through holes are fixed on the box body, and the edges of the gloves are fixed along the edges of the openings of the through holes to seal the through holes.

[0015] In the above-mentioned sample preparation device for thermal cracking sampling, a notch portion communicating with the groove is provided on the bottom wall of the box body, and after the glass carrier is placed in the groove, the side of the glass carrier corresponds to the notch portion.

[0016] Compared with the prior art, this application has the following advantages:

[0017] In the present application, since the device adopts a closed box structure, it can effectively prevent the external environment from contaminating the sample, and also ensure the cleanliness and purity of the sample during the preparation process. The provision of a transparent plate enables the operator to clearly observe the inside of the box, so as to accurately operate the cutting and placement of the sample. By designing a groove of a specific shape and a matching glass carrier, the glass carrier can be replaced, ensuring that a clean glass carrier can be used after each cutting session. The design of the box includes two through holes for hands to reach in, so that the operator can easily manipulate the sample without directly opening the box, which not only maintains a clean environment for the sample, but also facilitates actual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a partial cross-sectional schematic diagram in this application;

[0019] Figure 2 It is a schematic diagram in this application;

[0020] Figure 3 yes Figure 2 A cross-sectional schematic diagram of AA in FIG.

[0021] In the figure,

[0022] 2. Box body; 21. Observation port; 22. Through hole; 23. Inlet and outlet; 24. Box door; 25. Limiting groove; 26. Gloves; 27. Groove; 28. Notch;

[0023] 3. Transparent board;

[0024] 4. Glass carrier. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] like Figures 1 to 3 As shown, a sample preparation device for thermal cracking injection includes: a box body 2, a transparent plate 3 and a glass carrier plate 4, an observation port 21 is provided on the upper part of the box body 2, and through holes 22 for hands to be inserted are opened on two opposite side walls of the box body 2, and a groove 27 is opened on the bottom wall of the box body 2; the transparent plate 3 is fixed on the box body 2 and closes the observation port 21; the glass carrier plate 4 adapts to the shape of the groove 27 and can be placed in the groove 27.

[0027] In the present application, since the device adopts a closed box 2 structure, it can effectively prevent the external environment from contaminating the sample, and also ensure the cleanliness and purity of the sample during the preparation process. The provision of the transparent plate 3 enables the operator to clearly observe the interior of the box 2, so as to accurately operate the cutting and placement of the sample. By designing a groove 27 of a specific shape and a matching glass carrier 4, the glass carrier 4 can be replaced, which can ensure that a clean glass carrier 4 can be used after each cutting session. The design of the box 2 includes two through holes 22 for the hands to enter, so that the operator can easily manipulate the sample without directly opening the box 2, which not only maintains a clean environment for the sample, but also facilitates the actual operation.

[0028] Specifically, an inlet and outlet 23 is provided on one side of the box body 2 , and a box door 24 is hinged on the box body 2 , and the box door 24 is used to close or open the inlet and outlet 23 .

[0029] The design of the door 24 allows the device to easily open and close the inlet and outlet 23, thereby allowing the user to quickly put in or take out the sample. When closed, the closed door 24 can effectively isolate the external environment and prevent dust, moisture and other possible contamination factors from entering the interior of the device, which is particularly important for applications that require the preparation and analysis of samples in a very clean and controlled environment.

[0030] In an actual case, we can set the through hole 22 on the box door 24.

[0031] Specifically, the transparent plate 3 is made of glass material or acrylic material.

[0032] Whether glass or acrylic, both have high transparency, which allows the operator to clearly observe the sample processing status inside the box 2, which helps to improve the accuracy and convenience of the operation.

[0033] Specifically, the box body 2 is made of aluminum alloy plate material.

[0034] Specifically, there is at least 1 cm of spacing between the bottom wall of the box body 2 and the lower edge of the side wall of the box body 2 , so that a limiting groove 25 is formed between the side wall and the bottom wall.

[0035] The design of the limit groove 25 can make the box body 2 more stable when placed on the scale surface. This structure helps prevent the box body 2 from sliding during operation, especially in delicate operations that require precise addition or removal of samples. It is crucial to keep the device in a fixed position. The limit groove 25 can be placed on the weighing table of the electronic scale. After cutting is completed, the weight of the cut object can be accurately seen, so that the object does not need to come into contact with the outside world.

[0036] Specifically, two gloves 26 corresponding to the through holes 22 are fixed on the box body 2 , and the edges of the gloves 26 are fixed along the edges of the openings of the through holes 22 to close the through holes 22 .

[0037] By fixing and sealing the through hole 22 with the glove 26, the environment inside the box 2 can be effectively kept closed and sterile, preventing the entry of external air, dust or other pollutants. Although the glove 26 is fixed, the design allows sufficient flexibility so that the operator can freely manipulate and handle the sample without destroying the closedness of the box 2. By operating with the closed glove 26, the cross contamination that the sample may suffer during the experiment can be significantly reduced, ensuring the accuracy and repeatability of the experimental data.

[0038] Specifically, a notch portion 28 communicating with the groove 27 is provided on the bottom wall of the box body 2 . After the glass carrier 4 is placed in the groove 27 , the side of the glass carrier 4 corresponds to the notch portion 28 .

[0039] The design of the notch 28 allows a portion of the glass carrier 4 to be exposed outside the groove 27, thereby providing a gripping point. This greatly simplifies the removal and placement of the carrier, avoiding slipping or damage that may occur when trying to remove a carrier that is flat and fully embedded in the groove 27.

[0040] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative position relationship and movement status of the components in a certain specific posture, as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0041] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. At the same time, the meaning of "and / or" appearing in the full text is that it includes three schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0042] The above components are all common standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0043] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A sample preparation device for thermal cracking injection, characterized in that: include: A box body (2), wherein an observation port (21) is provided on the upper portion of the box body (2), through holes (22) are provided on two opposite side walls of the box body (2) for inserting a hand, and a groove (27) is provided on the bottom wall of the box body (2); a transparent plate (3), the transparent plate (3) being fixed on the box body (2) and closing the observation port (21); and A glass carrier (4), the glass carrier (4) is adapted to the shape of the groove (27) and can be placed in the groove (27).

2. The sample preparation device for thermal cracking injection according to claim 1, characterized in that: An inlet and outlet (23) is provided on one side of the box body (2), and a box door (24) is hinged on the box body (2), and the box door (24) is used to close or open the inlet and outlet (23).

3. The sample preparation device for thermal cracking injection according to claim 1, characterized in that: The transparent plate (3) is made of glass material or acrylic material.

4. The sample preparation device for thermal cracking injection according to claim 1, characterized in that: The box body (2) is made of aluminum alloy plate material.

5. The sample preparation device for thermal cracking injection according to claim 1, characterized in that: There is at least 1 cm of spacing between the bottom wall of the box body (2) and the lower edge of the side wall of the box body (2), so that a limiting groove (25) is formed between the side wall and the bottom wall.

6. The sample preparation device for thermal cracking injection according to claim 1, characterized in that: Two gloves (26) corresponding to the through holes (22) are fixed on the box body (2), and the edges of the gloves (26) are fixed along the edges of the openings of the through holes (22), thereby closing the through holes (22).

7. The sample preparation device for thermal cracking injection according to claim 1, characterized in that: A notch portion (28) communicating with the groove (27) is provided on the bottom wall of the box body (2); after the glass carrier (4) is placed in the groove (27), the side of the glass carrier (4) corresponds to the notch portion (28).

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