Sample loading accessory of special test tube for nuclear magnetic resonance oil content tester

Abstract

A sample loading accessory of a special test tube for a nuclear magnetic resonance oil content tester comprises a sample loading inner tube and a movable outer tube, the sample loading inner tube is a hollow tube with a funnel and a clamping block, a plurality of opening and closing arms are arranged below a tube body of the sample loading inner tube, diaphragms are arranged on the opening and closing arms, and the adjacent opening and closing arms are connected through the diaphragms. The movable outer pipe is shorter than the sample loading inner pipe and is nested outside the sample loading inner pipe, a bayonet matched with the clamping block on the sample loading inner pipe is formed in the movable outer pipe, a plurality of connecting strips are arranged below a pipe body of the movable outer pipe, and the movable outer pipe is connected with the opening and closing arm through the connecting strips. In the use process, the diaphragm can be unfolded along with the opening and closing arm to be attached to the inner wall of the special test tube for the nuclear magnetic resonance oil content determinator, the problem that a sample to be measured is attached to the wall of the test tube, and the test tube cannot be damaged is solved. And the problems of time waste, inaccurate experiment and the like are solved.

Description

Technical Field

[0001] This application relates to the technical field of test tubes for experiments, and specifically relates to a sample loading accessory for a special test tube of a nuclear magnetic resonance oil content measuring instrument, which is applicable to solid powder samples such as crushed corn, soybeans, and peanut grains. Background Technique

[0002] A nuclear magnetic resonance oil content measuring instrument is a professional instrument for detecting the oil content of oil-containing crops and their processed products. It can measure the oil content of different types of oil-containing crops, and has the characteristics of simple operation and stable performance. The nuclear magnetic resonance oil content measuring instrument has a special test tube. During measurement, a certain amount of the sample to be measured is weighed and filled to a position 2 - 3 millimeters below the scale line of the test tube. The sample to be measured should not exceed the scale line of the test tube, and the test tube wall should not be contaminated with the sample to be measured or oil.

[0003] The existing special test tubes of nuclear magnetic resonance oil content measuring instruments on the market are not equipped with sample loading accessories. When measuring solid powder samples to be measured such as crushed corn, soybeans, and peanut grains, since the solid powder is relatively light, as the sample in the special test tube increases, the sample to be measured will float to the wall of the special test tube. In addition, commonly used sample loading accessories on the market, such as medicine spoons, are very likely to touch the wall of the special test tube and cannot load a large amount of the sample to be measured at one time. The above situations will cause problems such as wasting time and inaccurate experiments.

[0004] In view of the problems raised in the above background technique, we propose a sample loading accessory for a special test tube of a nuclear magnetic resonance oil content measuring instrument. Summary of the Invention

[0005] The purpose of this application is to provide a sample loading accessory for a special test tube of a nuclear magnetic resonance oil content measuring instrument that is applicable to solid powder samples such as crushed corn, soybeans, and peanut grains, so as to solve the problems in the above background technique that the existing special test tubes of nuclear magnetic resonance oil content measuring instruments on the market do not have a sample loading device, resulting in inconvenient sample loading, the sample to be measured sticking to the test tube wall, wasting time, inaccurate experiments, etc.

[0006] To achieve the above purpose, this application adopts the following technical solution: A sample loading accessory for a special test tube of a nuclear magnetic resonance oil content measuring instrument includes a sample loading inner tube and a movable outer tube. The sample loading inner tube is a hollow tube with a funnel and a block. There are several opening and closing arms provided below the body of the sample loading inner tube. A diaphragm is provided on the opening and closing arms, and the diaphragm connects adjacent opening and closing arms. The movable outer tube is shorter than the sample loading inner tube and is nested outside the sample loading inner tube. A bayonet is provided on the movable outer tube that is adapted to the block on the sample loading inner tube. There are several connecting strips provided below the body of the movable outer tube. The movable outer tube is connected to the opening and closing arms through the connecting strips.

[0007] Preferably, the sample loading inner tube is a hollow tube, and the movable outer tube is shorter than the sample loading inner tube and nested outside the sample loading inner tube.

[0008] Preferably, at least 4 opening and closing arms are provided.

[0009] Preferably, the diaphragm is made of a nano material that does not stick to dust. When the diaphragm is fully unfolded, it will fit perfectly around the wall of the special test tube for nuclear magnetic resonance oil content analyzer.

[0010] Preferably, the number of the connecting bars is the same as that of the opening and closing arms, and the connecting bars are made of elastic copper strips.

[0011] Preferably, the block on the sample loading inner tube is adapted to the bayonet on the movable outer tube, and the height when the bayonet and the block are buckled is the same as that when the opening and closing arms are in the fully unfolded state. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the drawings and embodiments:

[0013] Figure 1 is a schematic diagram of the overall structure of the present application;

[0014] Figure 2 is a schematic diagram of the structure when the present application is in use;

[0015] Some reference numerals of the present application are described as follows:

[0016] In the figure: 1 - sample loading inner tube; 11 - funnel; 12 - block; 13 - opening and closing arm; 131 - diaphragm; 2 - movable outer tube; 21 - bayonet; 22 - connecting bar; 3 - special test tube for nuclear magnetic resonance oil content analyzer; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0018] Embodiment:

[0019] As Figure 1-2As shown in the figure, a sample loading accessory for a special test tube of a nuclear magnetic resonance oil content measuring instrument includes a sample loading inner tube 1 and a movable outer tube 2. The sample loading inner tube 1 is a hollow tube with a funnel 11 and a clamping block 12. A number of opening and closing arms 13 are provided below the body of the sample loading inner tube 1. A diaphragm 131 is provided on the opening and closing arms 13, and the diaphragm 131 connects adjacent opening and closing arms 13. The movable outer tube 2 is shorter than the sample loading inner tube 1 and is nested outside the sample loading inner tube. A bayonet 21 is provided on the movable outer tube 2 and is adapted to the clamping block 12 on the sample loading inner tube 1. A number of connecting strips 22 are provided below the body of the movable outer tube 2, and the outer tube 2 is connected to the opening and closing arms 13 through the connecting strips 22.

[0020] Among them, the sample loading inner tube is provided with a funnel 11, which is convenient for the operator to load a large amount of solid powders such as corn, soybean, and peanut grains into the special test tube 3 of the nuclear magnetic resonance oil content measuring instrument without loss through the funnel 11, making the operation process convenient, time-saving, and improving work efficiency.

[0021] Furthermore, the sample loading inner tube 1 is provided with a clamping block 12 and a number of opening and closing arms 13 are provided below the body of the tube. The movable outer tube 2 is shorter than the sample loading inner tube 1 and is nested outside the sample loading inner tube 1. A bayonet 21 is provided on the movable outer tube 2 and is adapted to the clamping block 12 on the sample loading inner tube 1. A number of connecting strips 22 are provided below the body of the movable outer tube 2, and the movable outer tube 2 is connected to the opening and closing arms 13 through the connecting strips 22. Pull the movable outer tube 2 until the bayonet 21 on the movable outer tube 2 is buckled with the clamping block 12 on the sample loading inner tube 1. This process will drive the connecting strips 22 and then cause the opening and closing arms 13 to open. The diaphragm 131 located on the opening and closing arms 13 will then expand to fit against the inner wall of the special test tube 3 of the nuclear magnetic resonance oil content measuring instrument, solving the problem that when measuring solid powders such as crushed corn, soybean, and peanut grains as the tested samples, since the solid powders are relatively light, as the samples in the special test tube increase, the tested samples will float to the tube wall of the special test tube, avoiding the problems of wasting time, low work efficiency, and inaccurate experiments.

[0022] Specific working principle:

[0023] During the use process, the operator places the present application into the special test tube 3 of the nuclear magnetic resonance oil content measuring instrument, and then pulls the movable outer tube 2 until the bayonet 21 on the movable outer tube 2 is buckled to the clamping block 12 of the sample loading inner tube 1. The movable outer tube 2 will drive the connecting strips 22 and then cause the opening and closing arms 13 to open. The diaphragm 131 located on the opening and closing arms 13 will then expand to fit against the inner wall of the special test tube 3 of the nuclear magnetic resonance oil content measuring instrument to prevent the tested samples from adhering to the tube wall, causing problems such as wasting time and inaccurate experiments. Finally, the operator sends solid powder samples such as crushed corn, soybean, and peanut grains into the sample loading inner tube 1 through the funnel 11 on the sample loading inner tube 1 and then transfers them into the special test tube 3 of the nuclear magnetic resonance oil content measuring instrument.

Claims

1. A sample loading accessory for a special test tube of a nuclear magnetic resonance oil content measuring instrument, comprising a sample loading inner tube and a movable outer tube. The sample loading inner tube is a hollow tube with a funnel and a clamping block. A plurality of opening and closing arms are provided below the body of the sample loading inner tube. A diaphragm is provided on the opening and closing arms, and the diaphragm connects adjacent opening and closing arms. The movable outer tube is shorter than the sample loading inner tube and is nested outside the sample loading inner tube. A bayonet adapted to the clamping block on the sample loading inner tube is provided on the movable outer tube. A plurality of connecting strips are provided below the body of the movable outer tube, and the movable outer tube is connected to the opening and closing arms through the connecting strips.

2. The sample loading accessory for a special test tube of a nuclear magnetic resonance oil content measuring instrument according to claim 1, wherein The sample loading inner tube is a hollow tube, and the movable outer tube is shorter than the sample loading inner tube and nested outside the sample loading inner tube.

3. The sample loading accessory for a special test tube of a nuclear magnetic resonance oil content measuring instrument according to claim 1, wherein The number of the opening and closing arms is set to be at least 4, and the diaphragm is made of a nano material that does not stick to dust. When the diaphragm is fully unfolded with the opening and closing arms, it will completely fit around the wall of the special test tube for nuclear magnetic resonance oil content analyzer.

4. The sample loading accessory for a special test tube of a nuclear magnetic resonance oil content measuring instrument according to claim 1, wherein The number of the connecting bars is set to be the same as that of the opening and closing arms, and the connecting bars are made of elastic copper strips.

5. The sample loading accessory for a special test tube of a nuclear magnetic resonance oil content measuring instrument according to claim 1, wherein The block on the sample loading inner tube is adapted to the bayonet on the movable outer tube, and the height when the bayonet and the block are buckled is set to be the same as the state when the opening and closing arms are fully unfolded.

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