Reagent bottle with sample injection tube fixing function

Abstract

The utility model discloses a reagent bottle with a sample introduction tube fixing function, and particularly relates to the technical field of liquid phase or solvent extraction instrument sample introduction, the reagent bottle comprises a hollow bottle body with one end open and a bottle cap, the bottle cap is provided with a through hole allowing a sample introduction tube to penetrate through in a sliding mode, and the end, entering the bottle body, of the sample introduction tube is detachably connected with a filter valve head; and a plurality of liquid inlet holes are formed in the peripheral wall of the filter valve head. The reagent bottle has the advantages that the sample injection pipe is fixed, and a liquid inlet at the tail end is positioned at the bottom end of the reagent bottle.

Description

Technical Field

[0001] This application relates to the technical field of liquid phase or solvent extraction instrument sampling, and particularly relates to a reagent bottle with a function of fixing a sampling tube. Background Art

[0002] During the operation of instruments that require the use of reagents, such as liquid chromatography instruments, accelerated solvent extraction instruments, and GPC, sampling liquid needs to be drawn from reagent bottles. Generally, experimental personnel insert the end of the sampling tube through the perforation in the reagent bottle cap until its end is immersed in the sampling liquid.

[0003] However, due to the light texture of the sampling tube and the generally curved end, after the liquid level drops for a certain distance, the water inlet at the end cannot contact the sampling liquid, thus affecting the experimental process. Utility Model Content

[0004] The utility model provides a reagent bottle with a function of fixing a sampling tube. The reagent bottle has the advantage of having a fixed sampling tube, so that the liquid inlet at its end is at the bottom of the reagent bottle.

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

[0006] A reagent bottle with a function of fixing a sampling tube includes a bottle body that is hollow and open at one end and a bottle cap. The bottle cap is provided with a through hole adapted for the sampling tube to slide through. One end of the sampling tube entering the interior of the bottle body is detachably connected with a filtering valve head, and a plurality of liquid inlet holes are provided on the peripheral wall of the filtering valve head.

[0007] Among them, a filtering valve head is installed at the end of the sampling tube extending into the bottle body. The weight of the filtering valve head itself can straighten the sampling tube and make its end always located at the bottom of the bottle body, thereby avoiding the end of the sampling tube from sucking air.

[0008] Preferably, a suction cup that adheres to the inner side wall of the bottle body is provided at the lower end of the filtering valve head. The design of the suction cup can make the filtering valve head suck to the bottom of the bottle body, so that the filtering valve head is always located at the bottom of the bottle body.

[0009] Preferably, a plugging hole is provided at the upper end of the filtering valve head, and the sampling tube is plugged and fixed inside the hollow of the plugging hole. The plugging fit is more conducive to disassembly and installation.

[0010] Preferably, a fixed sleeve is provided at the inner end of the bottle body. The middle of the fixed sleeve corresponds to the through hole, and the sampling tube slides through the fixed sleeve. The function of the fixed sleeve is to assist the sampling tube from bending.

[0011] Preferably, the reagent bottle further includes a sealing and fixing plug, and the sealing and fixing plug is fixedly inserted into the gap between the sampling tube and the through hole.

[0012] Preferably, a threaded section is provided at the open end of the bottle body, and a fixed internal thread is provided inside the bottle cap. The bottle cap and the bottle body are screwed and fixed.

[0013] Compared with the prior art, the advantages or beneficial effects of the technical solution of the present application include:

[0014] 1. The liquid inlet at the end of the sampling tube can be fixed to the bottom end of the bottle body, thus avoiding the occurrence of air suction.

[0015] 2. By detachably installing a filter valve head at the end of the sampling tube, the sampling liquid entering the liquid inlet tube can be filtered to prevent impurities from entering the instrument and causing instrument failures. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a reagent bottle with a fixed sampling tube function;

[0017] Figure 2 is a schematic cross-sectional structural diagram of a reagent bottle with a fixed sampling tube function.

[0018] In the figure: 1. Sampling tube, 2. Sealing and fixing plug, 3. Bottle cap, 4. Bottle body, 5. Threaded section, 6. Fixed sleeve, 7. Filter valve head, 8. Liquid inlet hole, 9. Suction cup. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will combine the drawings and embodiments to detail the implementation manners of the present application, so as to fully understand how the present application uses technical means to solve technical problems and the implementation process of achieving corresponding technical effects and implement accordingly. Each feature in the embodiments of the present application and the embodiments can be combined with each other without conflict, and the formed technical solutions are all within the protection scope of the present application.

[0020] It should be clear that the following described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments in the present application without creative efforts belong to the protection scope of the present application. Embodiment

[0021] A reagent bottle with a fixed sampling tube function includes a bottle body 4 that is hollow and open at one end and a bottle cap 3. The bottle cap 3 is provided with a through hole adapted for the sampling tube 1 to slide through. One end of the sampling tube 1 entering the interior of the bottle body 4 is detachably connected with a filter valve head 7, and a plurality of liquid inlet holes 8 are provided on the peripheral wall of the filter valve head 7.

[0022] As Figure 1 and Figure 2 shown, the bottle body 4 and the bottle cap 3 are hermetically connected.

[0023] The filter valve head 7 is installed at the end of the sampling tube 1, which can straighten the sampling tube and prevent it from bending and causing the liquid inlet end to align with the body part of the bottle. At the same time, since a plurality of liquid inlet holes 8 are provided on the periphery of the filter valve head 7, the sampling liquid entering the sampling tube from the filter valve head 7 will be filtered, thus preventing impurities from entering the instrument and causing the instrument to malfunction.

[0024] As Figure 2 shown, a suction cup 9 that adheres to the inner side wall of the bottle body 4 is provided at the lower end of the filter valve head 7. After the installation is completed, due to the action of the suction cup 9, the filter valve head 7 can be tightly adsorbed and fixed at the inner bottom end of the bottle body, thereby preventing the displacement of the bottle body from causing the filter valve head 7 to drive the sampling tube to shift.

[0025] As Figure 2 shown, a plug hole is provided at the upper end of the filter valve head 7, and the sampling tube 1 is inserted and fixed in the hollow interior of the plug hole. The filter valve head 7 and the sampling tube 1 are in plug-in fit, achieving quick installation and quick disassembly.

[0026] As Figure 2 shown, a fixed sleeve 6 is provided at the inner end of the bottle body 4, and the middle of the fixed sleeve 6 corresponds to the through hole. The sampling tube 1 slidably passes through the fixed sleeve 6. The fixed sleeve 6 plays a role in positioning the sampling tube 1, preventing it from bending in the sampling liquid and playing a guiding role.

[0027] In this embodiment, the reagent bottle further includes a sealing and fixing plug 2, which is fixedly inserted into the gap between the sampling tube 1 and the through hole. The setting of the fixing plug 2 realizes the isolation between the sampling liquid and the outside world. One is to prevent the sampling liquid from leaking, and the other is to prevent dust or foreign objects from the outside from falling into the sampling liquid through the gap between the sampling tube 1 and the through hole.

[0028] As Figure 2 shown, a threaded section 5 is provided at the opening end of the bottle body 4, and a fixed internal thread is provided on the inner side of the bottle cap 3. The bottle cap 3 and the bottle body 4 are screwed and fixed. The bottle body 4 and the bottle cap 3 are in screwed fit, which is more convenient for opening and adding liquid operations and has better sealing performance, preventing the sampling liquid from leaking from the connection between the two.

Claims

1. A reagent bottle with a function of fixing a sample injection tube, comprising a hollow bottle body (4) with an open end and a bottle cap (3), characterized in that: The bottle cap (3) is provided with a through hole adapted for the sample injection tube (1) to slide through, and one end of the sample injection tube (1) entering the bottle body (4) is detachably connected to a filter valve head (7), and a peripheral wall of the filter valve head (7) is provided with a plurality of liquid inlet holes (8); A fixed sleeve (6) is provided at the inner end of the bottle body (4), the middle portion of the fixed sleeve (6) corresponds to the through hole, and the sample injection tube (1) is slidably inserted into the fixed sleeve (6).

2. A reagent bottle with a fixed injection tube function according to claim 1, characterized in that: A suction cup (9) is provided at the lower end of the filter valve head (7) for adhering to the inner wall of the bottle body (4).

3. A reagent bottle with a fixed injection tube function according to claim 1, characterized in that: The upper end of the filter valve head (7) is provided with a plug-in hole, and the sample injection tube (1) is plugged and fixed in the hollow interior of the plug-in hole.

4. A reagent bottle with a fixed injection tube function according to claim 1, characterized in that: It also includes a sealing fixed plug (2), which is fixedly inserted into the gap between the sample injection tube (1) and the through hole.

5. A reagent bottle with a fixed injection tube function according to claim 1, characterized in that: The open end of the bottle body (4) is provided with a threaded section (5), the inner side of the bottle cap (3) is provided with a fixed internal thread, and the bottle cap (3) and the bottle body (4) are screwed and fixed.

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