CN205738671U - A kind of anti-leakage rubber stopper - Google Patents

Abstract

The utility model discloses an anti-leakage rubber stopper, which comprises a rubber cylinder, on the top surface of which the rubber cylinder is formed a depression which is sunken to the inside of the rubber cylinder, and the circular upper edge of the depression extends upwards There is an annular surface that wraps the rubber cylinder and the outer wall of the glass bottle mouth after being folded downward; an upper annular groove and a lower annular groove are formed on the outer wall of the rubber cylinder, and a rubber ring is formed between the two annular grooves. The utility model strengthens the sealing performance of the rubber stopper on the glass bottle by the ring surface being closely attached to the bottle wall, thereby reducing the sample pollution caused by contact with air; prolonging the storage time of the sample, especially the volatile solution; preventing the shaking process The spilling of the medium solution ensures the accuracy of the measured value and saves the cost of the experiment. The utility model has strong sealing performance, simple structure, convenient opening and wide application prospect.

Description

A kind of anti-leakage rubber stopper

technical field

The utility model relates to a sealing part of a container used for storing or transporting objects or materials, in particular to a leak-proof rubber plug.

Background technique

In the field of chemical analysis, glass bottles are usually used to contain various solutions, and are sealed by pressing the rubber stopper and the bottle mouth. When preparing the solution, it needs to be shaken up and down. Because there is a gap between the cork and the bottle wall, the liquid is easy to flow out from the gap, causing loss, which not only wastes the experimental materials but also affects the accuracy of the numerical measurement results.

Utility model content

The utility model proposes a leak-proof rubber stopper in order to solve the problem of poor sealability of the glass bottle rubber stopper in the prior art.

The utility model is realized according to the following technical solutions.

A kind of anti-leakage rubber stopper, comprising a rubber cylinder, on the top surface of the rubber cylinder is formed a concave part that is sunken to the inside of the rubber cylinder, and on the circular upper edge of the concave part, there is a downward fold Then wrap the rubber cylinder and the annular surface of the outer wall of the glass bottle mouth; an upper annular groove and a lower annular groove are formed on the outer wall of the rubber cylinder, and a rubber ring is formed between the two annular grooves.

The rubber cylinder is in the shape of a cylinder or an inverted truncated cone.

The annular surface is a closed curved surface with the upper and lower equal or reduced diameters.

The utility model has obtained the following beneficial effects.

The utility model effectively solves the problem of poor sealing performance of the glass bottle rubber stopper in the prior art. The utility model designed in this way is close to the bottle wall through the annular surface, which enhances the sealing performance of the rubber stopper to the glass bottle, thereby reducing the sample pollution caused by contact with air; prolonging the storage time of the sample, especially the volatile solution; preventing The spilling of the solution during the shaking process is avoided, the accuracy of the measured value is guaranteed, and the cost of the experiment is saved. The utility model has strong sealing performance, simple structure, convenient opening and wide application prospect.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a diagram of the use status of the utility model.

Among them: 1. Annular surface 2. Rubber cylinder

3. Upper annular groove 4. Lower annular groove

5. Depression.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

As shown in Figure 1-2, a kind of anti-leakage rubber stopper, comprises rubber cylinder 2, on the top surface of described rubber cylinder 2, is formed with the recessed part 5 that is sunken to rubber cylinder 2 inside, in recessed part 5 An annular surface 1 that wraps the rubber cylinder 2 and the outer wall of the glass bottle mouth after being folded downward extends upwards from the circular upper edge of the rubber cylinder 2; an upper annular groove 3 and a lower annular groove 4 are formed on the outer wall of the rubber cylinder 2, A rubber ring is formed between the two annular grooves.

The rubber cylinder 2 is in the shape of a cylinder or a rounded truncated cone.

The annular surface 1 is a closed curved surface with the upper and lower equal or reduced diameters.

The usage method of the utility model is: slowly insert the rubber cylinder 2 into the mouth of the glass bottle, stop when the top surface of the rubber cylinder 2 is slightly higher than the glass bottle mouth, and then fold the annular surface 1 downwards to wrap the rubber The outer wall of the cylinder 2 and the glass bottle mouth, the design of the annular surface 1 has enhanced the sealing performance of the rubber plug; Just pull it out of your mouth. The utility model has the advantages of simple design, convenient use and good sealing effect.

Claims (3)

1. A liquid-leakage-proof rubber stopper, comprising a rubber cylinder (2), characterized in that: on the top surface of the rubber cylinder (2) is formed a concave portion (5) that is sunken to the inside of the rubber cylinder (2) ), there is an annular surface (1) that is folded downwards and wraps the rubber cylinder (2) and the outer wall of the glass bottle mouth extending upward on the circular upper edge of the concave part (5); on the rubber cylinder (2) An upper annular groove (3) and a lower annular groove (4) are formed on the outer wall, and a rubber ring is formed between the two annular grooves. 2. The liquid-leakage-proof rubber stopper according to claim 1, characterized in that: the rubber cylinder (2) is in the shape of a cylinder or a rounded frustum. 3. The leak-proof rubber plug according to claim 1, characterized in that: the annular surface (1) is a closed curved surface with the upper and lower equal or reduced diameters.