CN2191184Y - Plastic cap for bottle - Google Patents

Abstract

The utility model relates to a plastic cover for a pet bottle. The bottom periphery of the bottle cover is connected with a safety ring by a plurality of joints; the internal side on the top of the bottle cover is provided with a ring edge, the internal side of which is adjoined with a circular ring which is downwards convex and is parallel to the bottle cover. The proper height of the circular ring which is used as the surface edge of the largest diameter body is provided with ring grooves with proper depth, and an O-shaped ring is restrained among the ring grooves. Thus, although the plastic bottle cover can be destroyed by bad people, when the plastic bottle cover can be rotated for about 180 DEG to 200 DEG towards to the opening direction from an original locking point, since the O-shaped ring does not disengage from the internal edge of the bottle opening, no external leakage can be generated. If the O-shaped ring is forced to disengage from the bottle opening, since the condition can exceed limit degrees, each joint can also generate disjunction.

Description

Plastic cap for bottle

The utility model relates to a kind of bottle plastic cover; It mainly is made up of bottle cap, safety link and O shape ring, and no matter whether bottle cap opened, and the effect of leakproof is all arranged.

Structure (Fig. 1 of traditional Bottle cover, Figure 1A, Fig. 2, shown in Fig. 2 A), the aluminium matter bottle cap for a long time that can be divided into lines and immediate cause environmental protection and the just gradually adopted plastic bottle lid of recovery problem, it all is to be locked on screw thread outside the general bottle upper end with the set screw thread of bottle cap inner edge, and below bottle cap A, be shaped on safety link A1, and in be between the two by equidistantly around temporary transient connection of several contacts A2 institute, when bottle cap A locks into bottle to seal a bottle, make safety link A1 can be bound to bottle B outside thread B1 below end to the greatest extent, and can prevent that bottle cap A gets loose in carrying is carried on the way, more can be by the dialysis whether of the contact A2 between bottle cap A and the safety link A1, whether can vigilance go out to have to suffer the worthless fellow to move trick, really be to kill two birds with one stone; Yet, only with rely screw thread within the bottle cap A to revolve to lock in bottleneck and make in the pad P of establishing closely connected at the bottleneck ora terminalis, be not enough to prevent to be filled in the interior gas of bottle (being generally carbonated drink, cola), intravenous extravasation is let out; Trace it to its cause, though be that in this pad P be to connect airtight (cup depth of its liner compressing driving fit generally can not surpass 0.2mm) with face edge and bottleneck ora terminalis, so in case bottle cap A unscrews a little, though and safety link A1 is not when taking off with bottle cap is disconnected, promptly can cause interior pad P of bottle cap and bottleneck ora terminalis to produce a little clearance D, and following evidence is arranged after tested, when aluminium matter bottle cap is rotated to about 15 ° toward opening direction by locking point, though and safety link A1 not dialysis as yet (because of aluminium matter is ductile), but pad P and bottleneck ora terminalis in the bottle promptly produce a little clearance D, cause bottle gas of interior filling, leaked liquid; Person very, be much accounted of the plastic colloid bottle cap of employing now, because the toughness of plastic colloid is preferable, so rotate to about 180 °～200 ° toward opening direction by locking point, though and safety link A1 as yet not the pad P in dialysis but the bottle cap and bottleneck ora terminalis promptly produce a little clearance D and than crack between the aluminium matter bottle cap for greatly, also can cause bottle gas of interior filling, liquid seriously to leak, and then make a bottle interior beverage flavor lose entirely, go bad and damage; Very and, because of the customer is difficult for discovering if buy back and drink, it is different to find that taste has, and will cause the unnecessary dispute of customer and maker; And put if penetrated and wanton destruction by the worthless fellow about this, cannot say for sure can not become and will coerce the excuse of making businessman; Moreover, after general child opens,, and have no idea very firmly to be screwed or a usually random lock if limited because of strength, just might produce and spill.

In view of the problems referred to above of conventional bottle cap, the purpose of this utility model provides a kind of bottle plastic cover.By improving the air-proof condition between bottle cap and bottleneck, make that when bottle cap is not opened fully gas, liquid that can not leak out bottleneck in the bottle, to reach safety, the leak preventing effect of practicality.

For achieving the above object, a kind of bottle plastic cover that the utility model provides is the structural improvement on traditional plastic cover basis.With the contact surface of bottle cap with the safety link of dividing into, be arranged to the continuous shape of several contacts, be provided with negative thread in bottle cap inside, be used for cooperating with the external thread rotary lock of bottleneck; In the bottle cap inside top ring edge that matches with the bottleneck upper surface and the annulus that can embed the bottleneck inner frieze are set, and the circular groove of an appropriate depth is set in the appropriate location of annulus outer wall edge, one O shape ring tightly is bound in this circular groove, and with bottleneck inner frieze closed contact, to reach the leak free effect, i.e. the known sealing arrangement of those skilled in the art.

Because the utility model plastic cover has adopted above-mentioned double sealing structure, adds the effect of safety link, making is not increasing under the condition of cost, and its leak tightness, safety all improve greatly.

Below especially exemplified by an embodiment, and dispensing description of drawings structure of the present utility model, function, function and characteristics:

Fig. 1 and Figure 1A are the diagram of traditional aluminium matter Bottle cap structure.

Fig. 2 and Fig. 2 A are the diagram of traditional plastic colloid Bottle cap structure.

Fig. 3 is the combination section of the utility model.

At first, consult the utility model bottle plastic cover shown in Figure 3, mainly be connected with safety link 3 at the end of bottle cap 2 periphery, and the contact surface of safety link 3 and bottle cap 2, be arranged to 21 one-tenth of several contacts shapes that link to each other, be provided with negative thread 22 in bottle cap 2 inside, be used for bottle 4 outside screw thread 41 revolve lock and cooperate; Between in inboard, bottle cap 2 top, near negative thread 22, then be provided with a ring edge 23, and the side adjacency has one to protrude and the annulus 24 parallel with bottle cap downwards within ring edge 23, and at the suitably height of annulus 24 and be maximum diameter body table edge, be provided with the circular groove 241 of appropriate depth, O shape ring 5 is bound in this circular groove 241; So, be locked to tight bottle 4, can closely paste by ring edge 23 and touch bottle mouth upper limb when bottle cap 2 revolves, O shape that annulus 21 is restrained ring 5 then fall in the lump into and embedding tightly tightly in the inner frieze of bottleneck 42, make an aerated liquid that is filled in the bottle, no matter whether bottle topples over, and all unlikelyly goes out to external leakage; Moreover, although this plastic bottle lid is intentionally destroyed, rotate to about 180 °～200 ° toward opening direction by former locking point, but because of this O shape ring 5 gos deep into bottleneck 42 the 3mm degree of depth is arranged, it does not break away from bottleneck 42 inner edges as yet, so can be to external leakage, and if force to make O shape ring 5 to break away from bottleneck 42, but,, and can effectively prevent worthless fellow's malicious sabotage so the customer is easy to pick out because of contact 21 also can produce dialysis; And normally open drink the back, in the time of will bottle cap being locked, as long as then allow O shape ring 5 be absorbed in bottleneck 42 inner edges, and and unnecessary more to the greatest extent peak power make bottle cap 2 negative threads 22 and 41 lockings of bottle 4 outside threads, with reach safe leakproof and when drinking local flavor preserve and weigh benefit more than long more for a long time.

Claims (1)

1. A kind of bottle plastic cover, periphery is connected with safety link at the end of bottle cap, and the contact surface of safety link and bottle cap, be arranged to the continuous shape of several contacts, and be provided with in bottle cap inside and be used for the negative thread that cooperates with the external thread rotary lock of bottle, it is characterized in that: between in inboard, bottle cap top, near negative thread, one ring edge is set, and side is protruded downwards and the annulus parallel with bottle cap in abutting connection with one within the Yu Huanyuan, at the suitably height of this annulus and be maximum diameter body table edge, be provided with the circular groove of appropriate depth, can be bound in this circular groove for O shape ring.

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