Squeezable filtering beaker

Abstract

The utility model discloses an extrudable filtering beaker which comprises a beaker used for bearing silica gel fragments and serving as a sample pool; the sand filter plug is arranged in the beaker, and the edge of the sand filter plug is attached to the inner wall of the beaker; the bottom end of the push-pull rod is connected with the center of the sand filter plug, and the top end extends out of the beaker top opening. According to the utility model, the problem of inconvenience in filtration during preparation of the thin-layer chromatography can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of test instruments, and particularly relates to an extrudable filtering beaker. Background Art

[0002] Preparative thin layer chromatography (Prep TLC) is a very practical technique for purifying small amounts of samples. PTLC can quickly separate multiple components in a reaction system mixture, so it is particularly useful for obtaining experimental reaction products or separating components of natural extracts. The general operation is to crush the scraped silica gel with a test tube through a weighing paper if the amount is small. If the amount is large, put it directly into a ziplock bag and crush it until it becomes a powder. For the elution of powdered silica gel samples, most people directly add solvents to soak them out. However, this will cause some problems, such as part of the silica gel may be poured into the product, and it may be necessary to wash the silica gel sample back and forth, which is very troublesome. Traditional operations require a variety of utensils and equipment. A beaker is used to crush the silica gel powder, put it into a filter funnel, and then pump it for filtration and elution three to five times, which is very inconvenient to use. And other operations cannot be performed. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art methods, the utility model aims to provide a squeezable filtering beaker, which can solve some operational inconveniences in the filtration of preparative thin layer chromatography.

[0004] To achieve the above purpose, the utility model adopts a technical solution: a squeezable filtering beaker, comprising:

[0005] Beaker, used to hold silica gel fragments and serve as a sample pool;

[0006] The sand filter plug is placed in a beaker, and the edge of the sand filter plug is in contact with the inner wall of the beaker;

[0007] and a push-pull rod, the bottom end of which is connected to the center of the sand filter plug and the top end of which extends out of the top opening of the beaker.

[0008] Furthermore, the sand filter plug has a plug diameter of 5 cm and a thickness of 1 cm.

[0009] Furthermore, the push-pull rod is connected to the sand filter plug by threads.

[0010] Furthermore, the push-pull rod is a T-shaped rod.

[0011] Furthermore, the push-pull rod is a metal rod.

[0012] Furthermore, a suction port is provided on the upper side wall of the beaker.

[0013] The beneficial effects of adopting this technical solution are:

[0014] The utility model discloses an extrudable filtering beaker used for preparing thin layer chromatography for filtering. The container with an opening similar to that of a beaker is adopted. A push-pull rod is arranged at a sand filter plug of the sample container for moving the sand filter plug up and down and can be disassembled. The sand filter plug can crush silica gel powder and can move up and down in the beaker. Therefore, when preparing thin layer chromatography, silica gel powder will not enter into product liquid, or the trouble caused by washing silica gel powder back and forth will not occur, and more utensils are not needed, so the operation is more convenient.

[0015] The utility model is convenient to operate. The product can be directly poured out by rotating, pressing and crushing the product through the sand filter plug. This operation can be repeated for elution and re-filtration. At the same time, pollution is avoided and loss is small. It is not easy to pour silica gel fragments into the product. At the same time, this product can also take into account the suction filtration operation, integrating multiple functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a squeezable filter beaker of the utility model;

[0017] Figure 2 This is a schematic diagram of an optimized structure of an extrudable filter beaker of the utility model;

[0018] Figure 3 This is a schematic diagram of the crushing state in the embodiment of the utility model;

[0019] Figure 4 This is a schematic diagram of the pouring state in the embodiment of the utility model;

[0020] Among them, 1 is a beaker, 2 is a sand filter plug, 3 is a push-pull rod, and 4 is a suction port. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described below with reference to the accompanying drawings.

[0022] In this embodiment, see Figure 1 As shown, a squeezable filter beaker comprises:

[0023] Beaker 1, used to hold silica gel fragments and serve as a sample pool;

[0024] The sand filter plug 2 is placed in the beaker 1, and the edge of the sand filter plug 2 is in contact with the inner wall of the beaker 1; a conventional existing sand filter plug 2 can be used;

[0025] A push-pull rod 3 is provided, the bottom end of which is connected to the center of the sand filter plug 2 and the top end of which extends out of the top opening of the beaker 1.

[0026] Preferably, the sand filter plug 2 has a plug diameter of 5 cm and a thickness of 1 cm.

[0027] The sand filter plug 2 is a quartz sand core plug that can filter and does not easily pass particles such as silica gel, and has a hardness that can crush silica gel powder. It is mainly used for rotating and crushing silica gel fragments in the sample pool. The sand filter plug 2 can filter out the liquid, and the product liquid can be poured out through the sand filter plug 2.

[0028] Preferably, the push-pull rod 3 is connected to the sand filter plug 2 by threads, forming a stable detachable connection structure.

[0029] Preferably, the push-pull rod 3 is a T-shaped rod. The top end of the T-shaped rod is used as a handle for pushing and pulling, which is convenient for operators to push, pull and roll. The push-pull rod 3 can be a metal rod.

[0030] The push-pull rod 3 can be fixed on the sand filter plug 2 by threads, and can be pushed and pulled up and down. The product liquid can be poured out by pressing the push-pull rod 3.

[0031] Preferably, Figure 2 As shown, a suction port 4 is provided on the upper side wall of the beaker 1, and the suction port 4 fixed at the bottleneck of the top of the beaker 1 is used for ventilation and filtration operation.

[0032] In order to better understand the present invention, the working principle of the present invention is described in detail below:

[0033] Step 1: Take out the scraped powdered silica gel first;

[0034] Step 2: Pull out the uppermost sand filter plug 2 and pour the scraped powdered silica gel into the bottom of the sample pool;

[0035] Step 3: Use the push-pull rod 3 to repeatedly press down and rotate the sand filter plug 2 to crush the silica gel to make it more broken. Figure 3 As shown;

[0036] Step 4: Add dichloromethane to wash, the product can be washed out, and continue to crush the silica gel;

[0037] Step 5: Repeat step 4 three to five times;

[0038] Step 6: Pour out the product liquid and spin it dry to get a clean product, such as Figure 4 shown.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A squeezable filter beaker, characterized in that: include: A beaker (1) for holding silica gel fragments and serving as a sample pool; The sand filter plug (2) is placed in the beaker (1), and the edge of the sand filter plug (2) is in contact with the inner wall of the beaker (1); A push-pull rod (3) has a bottom end connected to the center of the sand filter plug (2) and a top end extending out of the top opening of the beaker (1).

2. A squeezable filter beaker according to claim 1, characterized in that: The sand filter plug (2) has a plug diameter of 5 cm and a thickness of 1 cm.

3. A squeezable filter beaker according to claim 1, characterized in that: The push-pull rod (3) is connected to the sand filter plug (2) by threaded connection.

4. A squeezable filter beaker according to claim 1 or 3, characterized in that: The push-pull rod (3) is a T-shaped rod.

5. A squeezable filter beaker according to claim 4, characterized in that: The push-pull rod (3) is a metal rod.

6. A squeezable filter beaker according to claim 1, characterized in that: A suction port (4) is provided on the upper side wall of the beaker (1).

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