Volume bottle plug

Abstract

A volumetric cork comprises a cork top, a cork neck and a cork body. The plug top is in a flat cylinder shape, the plug neck is in a cylinder shape, and the plug body is in a circular truncated cone shape. The plug top is connected with the plug neck which is connected with the plug body. The radius of the plug top is 0.1-1.0 cm larger than that of the plug neck, and a plug edge is formed. And the height of the plug neck is 1.0-2.0 cm. The volume bottle plug is of a hollow structure and is made of glass, and the side surface of a plug body is in a frosted state. The whole volume bottle plug is in a big-end-up state, when the volume bottle plug is inversely arranged on an experiment table, the volume bottle plug is stable and cannot topple over, and the plug body part faces the sky and cannot be polluted by the experiment table top. The bottle plug can be conveniently held by a hand to apply external force through the plug edge, and the bottle plug can be smoothly opened under the condition that the bottle plug is tightly buckled. The plug neck part can be labeled and marked, so that the label or the mark can be seen no matter in a state of being inverted on an experiment table or in a state of plugging the volumetric flask, the label or the mark can well correspond to the label or the mark of the bottle body, and the bottle plug is prevented from being mixed to pollute a reagent.

Description

Technical Field

[0001] The utility model relates to the technical field of laboratory glass instruments, in particular to a volumetric bottle stopper. Background Art

[0002] Volumetric flasks are a type of glass instrument commonly used in chemical laboratories, used to prepare solutions of a certain volume and accurate concentration. During experiments, multiple volumetric flasks are often used at the same time. At this time, the bottle stoppers and the bottle bodies are easily mixed up, causing contamination of the solution and affecting the experimental results. In addition, when the bottle stoppers removed from the volumetric flask body are placed randomly on the test bench, it is also easy for the bottle stoppers to be contaminated with dirt on the test bench, which will have an adverse effect on the experimental results.

[0003] In order to solve the problems in these experiments, some people use flexible materials such as rubber bands and cotton ropes to tie the bottle stopper to the bottleneck of the volumetric flask, so that one bottle stopper corresponds to one bottle body to avoid confusion. At the same time, the bottle stopper tied to the bottleneck of the volumetric flask is suspended in the air and does not directly contact the laboratory table, which also avoids the unclean laboratory table from contaminating the bottle stopper. However, these flexible connections can easily cause the bottle stopper and the bottle body to collide, causing damage to the volumetric flask. In addition, the rubber band is prone to oxidation and breakage, and the cotton rope is prone to water absorption and contamination. Furthermore, the bottle stopper hanging on the bottleneck and the rubber band or cotton rope will interfere with the experimental operation and the washing operation of the volumetric flask, especially for the volumetric flask with smaller capacity. Because of its small dead weight, when there is no solution in the bottle, the bottle stopper hanging on one side will cause one side of the volumetric flask to sink, and the volumetric flask is easy to tip over.

[0004] Some experimenters have proposed various connecting devices to connect the stopper and the bottle body, such as 202122658674.9 a device for fixing the volumetric stopper, 202123068785.0 a connecting ring between the bottle body and the stopper of a volumetric flask, etc. However, these connecting devices do not solve the problem that volumetric flasks with smaller capacities tend to sink and tip over. Utility Model Content

[0005] In order to overcome the above-mentioned shortcomings of the existing volumetric flask, the utility model provides a volumetric flask stopper, which has the advantages of not being easily contaminated, being easy to mark, not being easily mixed, being easy to use, easy to clean, being able to be stably placed, and having a simple structure.

[0006] The technical solution adopted by the utility model is:

[0007] A volumetric bottle stopper comprises a stopper top, a stopper neck and a stopper body. The stopper top is a flat cylindrical shape, the stopper neck is a cylindrical shape, and the stopper body is a truncated cone shape. The stopper top, the stopper neck and the stopper body are coaxially connected, wherein the stopper top is connected to the stopper neck, and the stopper neck is connected to the stopper body.

[0008] Furthermore, the radius of the plug top is 0.1-1.0 cm larger than the radius of the plug neck, forming a plug edge.

[0009] Furthermore, the plug neck height is 1.0-2.0 cm.

[0010] Furthermore, the plug neck is connected to the larger bottom surface of the plug body, and the radius of the larger bottom surface of the plug body is equal to the radius of the plug neck.

[0011] Furthermore, the volumetric bottle stopper has a hollow structure.

[0012] Furthermore, the volumetric flask stopper is made of glass.

[0013] Furthermore, the side surface of the plug body is in a frosted state.

[0014] When the volumetric bottle stopper is used, after removing the stopper from the volumetric bottle body, the stopper can be placed upside down on a laboratory table. The volumetric bottle stopper in the inverted state is generally large at the bottom and small at the top, heavy at the bottom and light at the top, and is very stable and will not fall over. The stopper body part in contact with the solution in the volumetric bottle faces the sky and does not contact the laboratory table surface, thereby avoiding contamination.

[0015] The top of a common volumetric bottle stopper is provided with a handle protruding upwards for taking and placing the bottle stopper. Since the handle is thin and protruding, it is easy to be damaged. The bottle stopper proposed by the utility model replaces the handle with a stopper edge protruding from the top of the stopper to the surroundings, thereby avoiding the problem that the handle of the bottle stopper is easily damaged.

[0016] In addition, the stopper edge is easier to grasp than the handle, so it is convenient to hold the stopper edge with your hand and apply external force to pull out the stopper. For volumetric bottles with a certain adhesion between the stopper and the neck of the bottle that have been placed for a long time, or volumetric bottles with negative pressure in the bottle due to temperature changes, the volumetric bottle stopper proposed by the utility model is easier to open. The experimenter can hold the stopper edge with five fingers to facilitate applying force to the stopper. In comparison, the traditional stopper can only be pinched with two fingers, which has less force, and it is very difficult to operate for volumetric bottles that are difficult to open.

[0017] The cylindrical stopper neck portion of the volumetric bottle stopper of the utility model can be labeled or marked. No matter the bottle stopper with the label or mark is placed on the laboratory table or plugged into the volumetric bottle, the experimenter can clearly see the label or mark, and can well match the label or mark of the bottle stopper with the label or mark of the bottle body, so that the bottle stopper and the bottle body are matched one to one, thus avoiding mixing up the bottle stopper and contaminating the reagent.

[0018] Because the bottle stopper can be labeled or marked, the volumetric flask using the bottle stopper of the utility model can be used for solution preparation and washing in the form of a bottle body and a bottle stopper separated. During the solution preparation process and the washing process, there is no interference from the bottle stopper hanging on the bottleneck, the experimental operation becomes easier, the volumetric flask will not sink and tip over, and the collision between the bottle stopper and the bottle body can be avoided, reducing the damage of the volumetric flask.

[0019] The upper surface of the stopper top of the volumetric flask proposed by the utility model is flat, and a label or mark can also be attached. This provides a double insurance for the one-to-one correspondence between the bottle stopper and the bottle body, and when the label on the stopper neck accidentally falls off or the mark becomes blurred, the bottle stopper can also be identified to avoid confusion.

[0020] The entire volumetric bottle stopper adopts a hollow structure. The hollow structure can reduce the deadweight of the bottle stopper. After the bottle stopper is put back on the volumetric bottle, even if there is no solution in the volumetric bottle, it can maintain a state of sinking and light on the top, so that the volumetric bottle remains stable as a whole and is not easy to tip over. In addition, the hollow structure can save glass materials and reduce production costs.

[0021] The side surface of the stopper is frosted. The frosted surface of the stopper is in close contact with the frosted surface of the inner wall of the bottle neck, so there will be no leakage when shaking.

[0022] The utility model can achieve the following beneficial effects:

[0023] (1) The top of the plug is swollen and stable when placed upside down. When placed upside down, the plug body is vertically upward and will not be contaminated by dirt on the laboratory bench.

[0024] (2) The top of the cork protrudes outwards to form a cork edge, which replaces the handle of the cork and avoids the problem that the traditional cork handle is easily damaged by bumps. It is easier to apply force to remove the volumetric cork from the cork edge than to pinch the cork handle, making the cork easier to open.

[0025] (3) The cylindrical stopper neck can be labeled and marked to avoid mixing up the stoppers and contaminating the reagents.

[0026] (4) The upper surface of the plug top is flat and can be labeled or marked.

[0027] (5) The bottle body and the bottle stopper can be separated to prepare the solution and perform washing work. There is no interference from the bottle stopper hanging on the bottleneck, which makes the experimental operation easier. It can also avoid the tipping of the volumetric flask caused by partial sinking and avoid damage caused by the collision between the bottle stopper and the bottle body.

[0028] (6) The hollow structure of the bottle stopper has a small weight, which makes the upright volumetric flask stable as a whole. It can also save glass materials and reduce production costs.

[0029] (7) The stopper has a simple structure and is not easily damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The utility model is a schematic diagram of an inverted state of a volumetric bottle stopper.

[0031] Figure 2 It is a longitudinal cross-sectional view of a volumetric bottle stopper of the utility model.

[0032] Among them, 1-plug top, 2-plug neck, 3-plug body, 4-plug edge, 5-hollow structure, 6-label, 7-capacity bottleneck. DETAILED DESCRIPTION

[0033] The present invention is further described below through specific embodiments in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in 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. Example 1

[0034] A volumetric bottle stopper comprises a stopper top 1, a stopper neck 2 and a stopper body 3. The stopper top 1 is a flat cylindrical shape, the stopper neck 2 is a cylindrical shape, and the stopper body 3 is a truncated cone shape. The stopper top 1, the stopper neck 2 and the stopper body 3 are coaxially connected, wherein the stopper top 1 is connected to the stopper neck 2, and the stopper neck 2 is connected to the stopper body 3. The stopper neck 2 is connected to the larger bottom surface of the stopper body 3, and the larger bottom surface radius of the stopper body 3 is equal to the radius of the stopper neck 2. The entire volumetric bottle stopper has a hollow structure 5. The volumetric bottle stopper is made of glass. The side surface of the stopper body is frosted.

[0035] The plug top 1 has a radius of 0.7 cm and a height of 0.2 cm. The plug neck 2 has a radius of 0.5 cm and a height of 1.0 cm. The radius of the plug top 1 is 0.2 cm greater than the radius of the plug neck 2, forming a plug edge 4. The upper bottom surface radius of the plug body 3 is 0.5 cm, the lower bottom surface radius is 0.4 cm, and the height is 1.5 cm.

[0036] The process of using the volumetric bottle stopper is as follows:

[0037] (1) Clean the body and stopper of the volumetric flask separately.

[0038] (2) Attach labels to the neck 7, stopper neck 2 and stopper top 1 of the volumetric flask.

[0039] (3) Place the bottle stopper upside down on the test bench, with the stopper body 3 facing the sky and not in contact with the test bench surface, to avoid contamination by dirt on the test bench. Place the solution to be diluted in the volumetric flask and add water to the mark.

[0040] (4) Put the stopper on the bottle so that the frosted surface of the stopper body 3 and the frosted surface of the inner wall of the bottle neck are tightly combined, and shake well.

[0041] (5) Remove the bottle stopper, place it upside down on the test bench, and transfer the solution outward.

[0042] (6) After completing the experiment, clean the bottle body and the bottle stopper separately, and put the bottle stopper back on the bottle body for storage. Example 2

[0043] A volumetric bottle stopper comprises a stopper top 1, a stopper neck 2 and a stopper body 3, wherein the stopper top 1 is a flat cylindrical shape, the stopper neck 2 is a cylindrical shape, and the stopper body 3 is a truncated cone shape. The stopper top 1, the stopper neck 2 and the stopper body 3 are coaxially connected, wherein the stopper top 1 is connected to the stopper neck 2, and the stopper neck 2 is connected to the stopper body 3. The stopper neck 2 is connected to the larger bottom surface of the stopper body 3, and the larger bottom surface radius of the stopper body 3 is equal to the radius of the stopper neck 2. The entire volumetric bottle stopper has a hollow structure 5. The volumetric bottle stopper is made of glass. The side surface of the stopper body is frosted.

[0044] The plug top 1 has a radius of 1.5 cm and a height of 0.3 cm. The plug neck 2 has a radius of 1.0 cm and a height of 1.6 cm. The radius of the plug top 1 is 0.5 cm greater than the radius of the plug neck 2, forming a plug edge 4. The upper bottom surface radius of the plug body 3 is 1.0 cm, the lower bottom surface radius is 0.9 cm, and the height is 1.7 cm.

[0045] The use process of the volumetric flask stopper is the same as that of Example 1. Example 3

[0046] A volumetric bottle stopper comprises a stopper top 1, a stopper neck 2 and a stopper body 3, wherein the stopper top 1 is a flat cylindrical shape, the stopper neck 2 is a cylindrical shape, and the stopper body 3 is a truncated cone shape. The stopper top 1, the stopper neck 2 and the stopper body 3 are coaxially connected, wherein the stopper top 1 is connected to the stopper neck 2, and the stopper neck 2 is connected to the stopper body 3. The stopper neck 2 is connected to the larger bottom surface of the stopper body 3, and the larger bottom surface radius of the stopper body 3 is equal to the radius of the stopper neck 2. The entire volumetric bottle stopper has a hollow structure 5. The volumetric bottle stopper is made of glass. The side surface of the stopper body is frosted.

[0047] The plug top 1 has a radius of 2.1 cm and a height of 0.4 cm. The plug neck 2 has a radius of 1.3 cm and a height of 2.0 cm. The radius of the plug top 1 is 0.8 cm greater than the radius of the plug neck 2, forming a plug edge 4. The upper bottom surface radius of the plug body 3 is 1.3 cm, the lower bottom surface radius is 1.2 cm, and the height is 2.0 cm.

[0048] The process of using the volumetric bottle stopper is as follows:

[0049] (1) Clean the body and stopper of the volumetric flask separately.

[0050] (2) Use a marker pen to mark the neck 7, stopper neck 2 and stopper top 1 of the volumetric flask.

[0051] (3) Place the bottle stopper upside down on the test bench, with the stopper body 3 facing the sky and not in contact with the test bench surface, to avoid contamination by dirt on the test bench. Place the solution to be diluted in the volumetric flask and add water to the mark.

[0052] (4) Put the stopper on the bottle, so that the frosted surface of the stopper body 3 and the frosted surface of the inner wall of the bottle neck are tightly combined, and shake well.

[0053] (5) Remove the bottle stopper, place it upside down on the test bench, and transfer the solution outward.

[0054] (6) After completing the experiment, clean the bottle body and the bottle stopper separately, and put the bottle stopper back on the bottle body for storage.

Claims

1. A volumetric bottle stopper, characterized in that: The volumetric bottle stopper comprises a stopper top (1), a stopper neck (2) and a stopper body (3); the stopper top (1) is in the shape of a flat cylinder, the stopper neck (2) is in the shape of a cylinder, and the stopper body (3) is in the shape of a truncated cone; the stopper top (1), the stopper neck (2) and the stopper body (3) are coaxially connected, wherein the stopper top (1) is connected to the stopper neck (2), and the stopper neck (2) is connected to the stopper body (3).

2. A volumetric bottle stopper according to claim 1, characterized in that: The radius of the plug top (1) is 0.1-1.0 cm greater than the radius of the plug neck (2), forming a plug edge (4).

3. A volumetric bottle stopper according to claim 1, characterized in that: The plug neck (2) has a height of 1.0-2.0 cm.

4. A volumetric bottle stopper according to claim 1, characterized in that: The plug neck (2) is connected to the larger bottom surface of the plug body (3), and the radius of the larger bottom surface of the plug body (3) is equal to the radius of the plug neck (2).

5. A volumetric bottle stopper according to claim 1, characterized in that: The volumetric bottle stopper has a hollow structure (5).

6. A volumetric bottle stopper according to claim 1 or 5, characterized in that: The volumetric flask stopper is made of glass.

7. A volumetric bottle stopper according to claim 1, characterized in that: The side surface of the plug body (3) is in a frosted state.

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