CN2455629Y

CN2455629Y - Susceptible bottle cap

Info

Publication number: CN2455629Y
Application number: CN 00249942
Authority: CN
Inventors: 徐建华
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-11-06
Filing date: 2000-11-06
Publication date: 2001-10-24
Anticipated expiration: 2010-11-06

Abstract

The utility model relates to an easy-opening bottle cap, which comprises a cap body, a pull ring and a plastic sealing gasket. A U-shaped cutting line is arranged on the inner bottom face of the cap body, the pull ring is pivoted on the cap body by a hollow rivet, and a finger placing hole is arranged in the pull ring. When a bottle is opened, the part of the U-shaped cutting line of the cap body of a bottle cap can be torn only by placing the finger into the finger placing hole to upward pull the pull ring until the whole bottle cap is pulled and shed. The utility model is suitable for a beer bottle, a pressurized bottle and other glass bottles. The utility model has the advantages that opening is easy, sealing performance is good, and the easy-opening bottle cap is suitable for the existing sealing equipment. Meanwhile, the easy-opening bottle cap has explosion-proof function.

Description

Easily opened bottle cap

The utility model relates to a kind of bottle cap that is used for beer, pop bottle and other glass bottle, belongs to a kind of easily opened bottle cap.

For beer bottle, pop bottle and other glass bottle, present widely used bottle cap adopts metal stamping to form, good airproof performance, and encapsulation is convenient, but opens necessary with special-purpose opening instrument, very inconvenient in use.Though the utility model patent easy-open bottle lid that does not need by the opening of special-purpose opening instrument is arranged, but on structure and actual the use, there is certain problem, also can't be accepted by producer and user, as Chinese utility model patent number: 99201872.2, disclose a kind of easy-to-draw opening and take off beer bottle cap, but this kind bottle cap exists some not enough: the one, and pulling open bottle cap is the effect that utilizes the inboard skid plate of pasting of bottle cap, whole stressed irregular generation of bottle cap sealed gas leakage when causing encapsulation easily owing to the existence of skid plate, influences leak tightness; The 2nd, its angular aperture is bigger, require pulling force bigger during uncork, and arm-tie is less, and hand is difficult for holding, and causes certain difficulty to pulling bottle cap; The 3rd, rivet and arm-tie protrude caping, are difficult for being accepted by existing sealing device.

The purpose of this utility model is to overcome the defective of above-mentioned prior art and provides a kind of opening convenient, good airproof performance, and existing sealing device is suitable for, once drawing the easily opened bottle cap that takes off.

According to above-mentioned purpose, embodiment of the present utility model is: the lid that comprises band skirt pleat, draw ring is housed on it, the inner bottom surface top of lid is irritated and is pressed with the non-toxic plastic packing seal, it is characterized in that draw ring passes through a hollow rivet riveted on lid, there is a finger to insert the hole in the draw ring, the inner bottom surface of lid is the U-shaped line of weakness that there is half rounded nose at the center with the hollow rivet, one end of U-shaped line of weakness extends to apart from 3.5～4mm place, lid lower openings edge, the other end extends to the lower openings edge of lid, and its afterbody knee radius laterally is R3～R5mm.

Compared with the prior art the utility model has good airproof performance, required pulling force is little during uncork, the advantage that can on existing sealing device, use, simultaneously, owing on the bottle cap lid U-shaped line of weakness is arranged, the pressure bottle is arranged in the transportation loading and unloading way at beer bottle, pop bottle etc., because high-temperature sterilization causes when the pressure of the inside of a bottle that causes exceeds standard in high temperature, vibrations or the production, bottle cap can break apart pressure release automatically, plays explosion-proof.

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

Fig. 2 is that Figure 1A-A is to section-drawing;

Fig. 3 is the partial enlarged drawing of Fig. 2 I;

Fig. 4 removes structural representation behind the plastic sealing gasket for the lid inner bottom surface;

Fig. 5 is that the B-B of Fig. 4 is to cutaway view.

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

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, the utility model is by the lid 1 of a band skirt pleat, and the lid upper surface has a draw ring 2 by a hollow rivet 3 riveteds, and the inner bottom surface top of lid is irritated and is pressed with a non-toxic plastic packing seal 4.The inner bottom surface of lid is the U-shaped line of weakness 12 that there is half rounded nose at the center with hollow rivet 3, its head semicircle radius is R2mm, the afterbody two ends: an end 12-1 extends to apart from 3.5～4mm place, lid lower openings edge, other end 12-2 extends to the lower openings edge of lid, its afterbody knee radius laterally is R3～R5mm, thereby after bottle cap is drawn back, can form bigger gap, angle between two extension lines is set to 13 °～18 °, required pulling force when adopting less angle to help reducing opening, the degree of depth of U-shaped line of weakness 12 is 0.19～0.21mm, requires the control proper depth according to explosion-proof pressure in the actual production.The external diameter of draw ring 2 is consistent with the bottleneck external diameter, the centre has a finger and inserts the hole, outer edge has downward 90 ° flanging 23, the flanging 24 that the oriented turning in folding in inside edge is 180 °, the flanging bottom surface is near the lid upper surface, can play antirust, beauty function, finger be inserted unlikelyly in draw ring 2 holes scratched by metal burr.During use, break draw ring 2 one ends off with the fingers and thumb and be 90 °, finger is put into the hole of inserting of draw ring 2, the proceeds posterolateral that firmly makes progress is to pull-up draw ring 2, at first drawn back with the semicircle fore-end of lid in the fixing U-shaped line of weakness of hollow rivet 3 this moment, extending to bottle cap lid 1 marginal portion along this line of weakness is subsequently also torn gradually, bottle cap has one side to form a gap, because an end line of weakness head also has 3.5～4mm from lid 1 lower openings edge, lid 1 is also connected together with draw ring 2 parts, pull on draw ring 2, whole bottle cap can be pulled from bottleneck.Behind hollow rivet 3 riveteds, its end face uses on existing sealing device so that be suitable for draw ring 2 upper surface flush.

Produce the requirement of automation line for adapting to bottle cap, lean on the rivet hole outer side edges at bottle cap draw ring 2, be distributed with two small semicircles that cut with rivet hole line of centers bilateral symmetry, its radius is 1mm, centre distance is 4～5mm between two semicircles, and its effect is when the bottle cap punch forming, and the feeding tongue of an elongation is arranged between two semicircles, play the feeding clamping action, utilize this structural approach can save raw MAT'L.Simultaneously, being provided with a height protruding upward in the middle part at the rivet hole one side upper edge of lid 1 and hollow rivet (3) head edge is 0.4mm, width is 1mm, length is the small boss 11 of 2mm, be in same position of center line with rivet hole, its effect is after whole bottle cap machine-shaping, after at last above-mentioned feeding tongue being clipped from bottle cap draw ring 2, be convenient to stay on the draw ring 2 90 ° of the downward bendings of a head part on the automation line producing, play by the platform effect.

Claims

1, a kind of easy-open bottle lid, the lid that comprises band skirt pleat, draw ring is housed on it, the inner bottom surface top of lid is irritated and is pressed with the non-toxic plastic packing seal, it is characterized in that draw ring (2) passes through a hollow rivet (3) riveted on lid (1), there is a finger to insert the hole in the draw ring (2), the inner bottom surface of lid (1) is the U-shaped line of weakness (12) that there is half rounded nose at the center with hollow rivet (3), one end (12-1) of U-shaped indentation (12) extends to apart from 3.5～4mm place, lid (1) lower openings edge, the other end (12-2) extends to the lower openings edge of lid (1), and its afterbody knee radius laterally is R3～R5mm.

2, easy-open bottle lid according to claim 1 is characterized in that the line-to-line angle that U-shaped line of weakness (12) extends laterally is 13 °～18 °, and width of nick is 0.19～0.21mm.

3, easy-open bottle lid according to claim 1 is characterized in that the external diameter of draw ring (2) is consistent with the bottleneck external diameter, and outer edge has downward 90 ° flanging (23), the flanging (24) that the oriented turning in folding in inside edge is 180 °.

4, according to claim 1 or 3 described easy-open bottle lids, it is characterized in that being distributed with two small semicircles that cut (21), (22) with rivet hole line of centers bilateral symmetry on draw ring (2) one sides, its radius is R1mm, centre distance is 4～5mm between two semicircles.

5, easy-open bottle lid according to claim 1, it is characterized in that it is 0.4mm that lid (1) leans on the middle part at rivet hole one side upper edge and hollow rivet (3) head edge that one height protruding upward is arranged, width is 1mm, length is the small boss (11) of 2mm, is in same position of center line with rivet hole.

6, easy-open bottle lid according to claim 1 is characterized in that the upper surface flush of the same draw ring of apical side height (2) behind hollow rivet (3) riveted.