CN1431966A - Pressure stoppers for glass bottles and similar containers - Google Patents

Abstract

The device is suitable for a glass bottle with a rotary bottleneck and a smooth bottleneck inner surface, wherein a cylindrical sleeve (2) is made of flexible materials such as rubber and the like, the outer diameter of the sleeve is smaller than the inner diameter of the bottleneck (1), and the outer end of the sleeve is provided with a flange (3) which covers the bottleneck (4); the inner part of the sleeve (2) is provided with two rigid components, the outer end of the rigid component (5) extending out of the bottle is a disc, the bottom end of the rigid component (9) in the bottle is a circular truncated cone, the two rigid components are provided with a thread groove (8) and a matched thread pin (12), the disc (6) is rotated along a certain direction, the two components can integrally move along the axial direction, so that the rigid components shrink axially, the bottom end of the sleeve (2) deforms under the action of the circular truncated cone (10), and the inner surface of the bottle neck (1) is extruded, so that stable sealing combination is formed.

Description

Pressure stoppers for glass bottles and similar containers

purpose of invention

The present invention is a pressure plug specially used for a certain type of glass bottle. Through the radial pressure of the pressure plug itself on the mouth of the glass bottle, sufficient airtightness can be provided at the sealing port, but the pressure plug can also be used for other types of glass bottles. Containers requiring a similar sealing method.

The purpose of the present invention is to obtain a pressure plug which can be conveniently installed on the mouth of a glass bottle or a container to ensure the airtightness of the glass bottle or container and is easy to open. In addition, the pressure plug can be reused.

Background of the invention

In glass bottles or other similar containers, there are two main methods of sealing: one method is to axially fix the glass bottle and stopper with complementary threads or other methods, so that the disc or ring part is axially deformed, and in the The plug and the mouth of the container play a sealing role; in another method, there is no device on the container to connect the plug and fix the plug axially, and the container is kept sealed by the radial internal pressure of the plug on the bottle mouth.

Usually the cork used in the sealing method used for liquor bottles, champagne bottles, etc. is a cylindrical cork. Because its size is as large as the inner diameter of the bottle mouth, a special machine is required to insert the cork into the bottle mouth. This machine has a downward converging circular nozzle to squeeze the cork. The piston of the machine squeezes the bottle stopper axially. Due to the material properties, the bottle stopper undergoes obvious radial contraction, passes through the nozzle of the machine to reach the bottle neck, and then undergoes elastic deformation to generate a large pressure on the bottle mouth, thereby ensuring the seal. stability and airtightness.

Regardless of the problems of this type of cork itself, from an operational point of view, to obtain the best airtightness, it will increase the difficulty of taking out the cork, which requires an auger to take out the cork, so many times the bottle The plug will break when pulled out. In addition to this shortcoming, if the cork shrinks a lot when it is plugged into the mouth of the bottle, it will also expand a lot when the cork is pulled out for the first time. Generally, the contents of the bottle cannot be used up at one time, but at this time the cork is Can no longer function as a seal.

Description of the invention

The pressure plug proposed by the present invention can satisfactorily solve the above problems. Not only can the pressure stopper be used for the first bottling, but it can also be used as a spare instead of the conventional cork in the above-mentioned case, when the conventional cork can no longer be used.

Specifically, the pressure plug disclosed in the present invention has three functional parts. One part is a sleeve made of flexible material such as rubber. The size of the sleeve corresponds to the circular flange at its top, which prevents the stopper from passing through the mouth of the bottle. The outer diameter of the sleeve is equal to or smaller than the inner diameter of the bottle mouth. The two rigid parts are connected to the flexible part, and the two parts are combined to form a telescopic shaft, one of the two parts of the telescopic shaft protrudes outside the bottle, and the other part is inside the bottle. The top of the part protruding out of the bottle is a disc, and the outside world acts on this part through the disc; while the top of the inner part of the bottle is a circular platform, which diverges along its free end, that is, the bottom end, and its maximum diameter is close to the inner diameter of the bottleneck. , when the distance between the disc and the round table is the shortest, the assembly can be easily placed in a glass bottle or container, and when the flange contacts the bottle mouth, the assembly cannot be plugged into the bottle. Since the flexible sleeve connected to the flange will not be deformed, it can maintain its original cylindrical shape. Therefore, when the sleeve acts on the rigid part, due to the axial contraction of the rigid part, the round table makes the flexible sleeve elastically deformed. The tube exerts greater pressure on the inner wall of the bottle neck, so the bottle stopper as a whole makes the glass bottle or container airtight and excellent in stability.

Description of drawings

In order to further describe the present invention and better understand the features of the present invention, according to the preferred device of the present invention, the following intuitive non-limiting descriptions are given in conjunction with the accompanying drawings.

Fig. 1 is the corresponding side view drawn after the components of the pressure plug of the present invention are disassembled and sectioned, including a sectional view of a specific bottle neck suitable for the pressure plug.

The pressure plug can be formed by rationally assembling the components in Fig. 1 along the radial direction. Fig. 2 is another device of the present invention, and this device is similar to the device that Fig. 1 is formed, and only difference is that the threaded pin in the threaded connection is connected with the circular platform in Fig. 2, and is connected with the disk in Fig. 1.

Fig. 3 is the various steps of installing the device of Fig. 2 at the bottleneck.

Preferred Embodiment of the Invention

According to the above-mentioned drawings, the pressure plug involved in the present invention is suitable for glass bottles or containers whose bottleneck 1 is a rotating body. The pressure plug includes: a cylindrical casing 2 made of flexible material with a certain length, the top of the casing is a flange or a ring 3, and the flange or ring 3 covers the mouth 4 of the bottle neck 1 and plays two roles : prevent the sleeve tube from being trapped in the bottleneck, and will be mentioned later when it plays a sealing role; the two parts connected to the sleeve tube 2 are made of rigid materials such as plastics, and the top of the bottle outer part 5 is a disc 6, the disc 6 The diameter of 6 coincides with that of the casing 2 and the flange 3, and the rigid part 5 has a threaded pin 7 in the axial direction as shown in Figure 1 or an internal thread groove 8 as shown in Figure 2, but the rigid part 5 and another rigid part 9 threads must be complementary. The bottom end of the rigid part 9 has a circular platform 10 diverging toward the free end. When the part 5 is a threaded pin 7, the part 9 is an axial internal thread groove 11, as shown in Figure 1; when the part 5 is an internal thread groove 8, the part 9 is a threaded pin 12, as shown in Figure 2 Show.

In either case, the two complementary threads 7-11 or 8-12 should allow the rigid part 5 to move axially telescopically relative to the part 9, and the maximum diameter of the round table 10 on the part 9 can make the round table enter the bottleneck 1.

Depending on the configuration of the pressure stopper, install the pressure stopper in the glass vial as follows.

According to the first step in FIG. 3 , firstly, the rigid parts 5 and 9 are furthest apart, ie the cone 10 is completely away from the casing 2 , so that the casing 2 remains cylindrical.

In this case, as shown in the second step in Figure 3, the pressure plug is fully inserted into the bottle neck 1 with a small external force.

Then, pull out the disk 6 of the rigid part 5 slowly, and adjust the position. As the rigid part 5 rises, the rigid part 9 moves slowly, and its round table 10 squeezes the bottom end of the sleeve 2 to cause corresponding radial deformation. Therefore, the shape of the bottle neck 1 is the same, as shown in the third step of FIG.

According to the fourth step in Fig. 3, then the disc 6 is rotated, and the rigid part and the thread of the rigid part 9 in the bottle are interlocked to make it gradually approach the flange 3, because the round platform 10 of the rigid part 9 and the cylindrical flexible sleeve The two rub against each other, and the rigid part 9 maintains a fixed position.

When the disk 6 is about to contact the flange 3, the final sealing is performed, as shown in the fifth step in FIG. 3 , which is the last step. During the final sealing, the bottom of the casing 2 is obviously deformed, so that it is sealed and combined with the inner wall of the bottleneck 1 and the round platform 10. This sealing combination in turn makes the disc 6 axially squeeze the flange 3, so that the flange 3 Axial deformation occurs, improving the sealing ability of the entire pressure plug.

Obviously, by operating in reverse order, the pressure plug can be easily removed, so that the pressure plug can be reused indefinitely.

Claims (4)

1. A pressure plug suitable for glass bottles or similar containers with a rotary neck and a smooth inner surface of the neck, characterized in that three parts are organically combined, and one part is a cylindrical sleeve made of flexible material (2) , the outer diameter of the bushing depends on the inner diameter of the bottleneck (1), the outer end of the bushing is a flange (3), and the flange (3) is circular and covers the neck of the bottle; it is connected with the bushing (2) by Two parts (5, 9) made of rigid materials such as plastics, these two parts are axially connected, and the relative position can be adjusted; the top/outer end of the rigid part (5) extending out of the bottle is a disc (6 ), the disk is covered on the flange (3) of the casing (2); the bottom of the rigid part (9) in the bottle is a circular platform (10) diverging toward the free end, and the maximum diameter of the circular platform should allow it to pass through the bottleneck (1), when the rigid parts (5, 9) are farthest apart, the circular table (10) does not change the cylindrical shape of the casing (2), but due to the axial contraction of the rigid parts, the bottom of the casing (2) deformation, and squeeze the inner wall of the bottleneck (1), and at the same time, the flange (3) deforms and squeezes the outer edge of the bottleneck. 2. The pressure plug suitable for glass bottles or similar containers according to claim 1, characterized in that, the two rigid parts can be relatively stretched, and through the interlocking threads (7-11 or 8-12), the two A rigid part can move axially as a whole. 3. The pressure plug suitable for glass bottles or similar containers as claimed in claim 1 or 2, characterized in that threaded pins (7) are arranged on the rigid part (5) stretching out of the bottle, and the rigid part in the bottle ( 9) thread groove (11) is arranged to connect threaded pin (7). 4. The pressure plug suitable for glass bottles or similar containers as claimed in claim 1 or 2, characterized in that the rigid part (5) protruding out of the bottle has an internal thread groove (8), and the rigid part in the bottle (9) There is a threaded pin (12) matched with the thread groove (8).

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