CN2346720Y - Second-use-proof plastic bottle - Google Patents

Abstract

The utility model relates to a second-use-proof plastic bottle in beverage packaging aspects. In order to prevent others from using second-hand plastic bottles to produce fake and poor products, generally, bottle caps are made into disposable products, but the value of the bottle cap is too small so the purpose can not be reached basically. An annular groove with gear forms is previously arranged at the upper part of the threads of a bottle mouth, when the bottle cap is opened, the bottle mouth is easy to broken using mechanical principle to form a notched bottle mouth which can not be sealed any more, so that the purpose of preventing others from using the second-hand plastic bottles is effectively reached. The utility model only need changing molds; compared with the existing manufacture of the plastic bottles, no distinction exists in other aspects, so the production cost can not be increased.

Description

Anti-secondary uses plastic bottle

The utility model relates to the particularly plastic bottle that uses of beverage packaging aspect of plastic bottle that a kind of anti-secondary uses.

The present plastic bottle that uses is the plastic bottle of beverage packaging aspect use particularly, in order to prevent that other people from using by secondary, make counterfeit and shoddy goods, generally be that bottle cap is made disposable use, unlatching is a damage type, but the value of bottle cap can't be worth with plastic bottle and compare, and changes new bottle cap and can reuse, and can't reach the purpose that prevents that other people secondary from using basically.

The utility model is that a kind of later-model plastic bottle will be provided, and it can prevent effectively that other people from using plastic bottle by secondary.

The purpose of this utility model is achieved in that and makes one " destroying body " above the bottle neck screw thread of plastic bottle; There is a narrow circular groove to be used for initial gross separation " destruction body " between " destroy body " and the bottle neck screw thread, the circuit band profile of tooth of circular groove or other suitable shape, the degree of depth of circular groove can not surpass the thickness of bottle neck wall, do not spill liquid when adding bottle cap, not damage, be as the criterion and when uncork is covered, be easy to remove " destroying body "; Vertically have some grooves (or stupefied) on " destruction body " outside face, but also horizontal direction is opened circular groove (or stupefied), bottle cap matches with it, and promptly bottle cap inside face screw thread top same position vertically has stupefied (or groove), and horizontal direction by that analogy; Groove and stupefied tangent plane shape can be serration or other shape, and along advancing, can not withdraw from bottle cap during the uncork lid is principle with " destroying body " interlock when being easy to add bottle cap.Torsion or axial force when also promptly utilizing the uncork lid, make " destroying body " circuit separation along circular groove, after " destroying body " comes off, the bottleneck of plastic bottle just becomes the bottleneck of band profile of tooth or other shape, it is notched bottleneck, can't seal a bottle when adding bottle cap again, prevent that other people secondary from using the purpose of plastic bottle thereby reach.

The utility model only needs more mold exchange during fabrication, others and existing plastic bottle are made as broad as long, thus can not increase productive costs, simultaneously owing to the point of view is behind the uncork lid bottleneck to be destroyed, can't seal again, thereby stop other people to use plastic bottle by secondary effectively.

Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof.

Fig. 1 is vertical half-sectional view of a kind of concrete structure of plastic bottle of the present invention.

Fig. 2 is the longitudinal sectional drawing of a kind of concrete structure of bottle cap of the present invention.

Fig. 3 is the cutaway view of Fig. 2 bottle cap along the 3-3 line.

Fig. 4 is the cutaway view of Fig. 1 plastic bottle along the 1-1 line.

Fig. 5 is the section-drawing of Fig. 1 plastic bottle along the 2-2 line.

This plastic bottle comprises a plastic bottle main body (1), and the internal diameter of its bottleneck is 22mm, then is bottle neck screw thread (2) on it, and external diameter is 27mm (a standard rotation direction); Then be a circular groove (3) on the screw thread (2), three well-distributed serration (4) are arranged in the circuit of circular groove (3), the height of serration (4) is 2.5mm, length is 5mm, be the left side vertically downward, shape is tiltedly gone up on the right side, and the bottle neck wall thickness that the bottom of circular groove (3) forms is 0.1-0.2mm; Part on the circular groove (3) is to destroy body (5), and its external diameter equals the footpath, the end of bottle neck screw thread (2), and it highly is 5mm, be covered with vertical slot (6) on the outside face of destruction body (5), its groove depth is 0.5mm, is shaped as serration on the square section, and crown falls partially to clockwise direction (overlooking); Be processed into an integral body with top; This plastic bottle also has a bottle cap (7), the bottle cap inside face has screw thread (8) that matches with bottle neck screw thread (2) and vertically stupefied (9) that match with the vertical slot of destroying on the body (6), and the sawtooth that forms on vertically stupefied (9) square section point is for falling partially to anticlockwise direction (overlooking).When using plastic bottle to add a cover for the first time, because the vertical slot of destroying on the body (6) is skidded when rotating in the clockwise direction with vertically stupefied (9) of bottle cap, do not produce big torsion, and the serration of circular groove (4) also to produce opposite force, thereby guarantee to destroy the integraty of body (5) and main body (1); When opening bottle cap (7), destroy the vertical slot (6) of body and vertically stupefied (9) of bottle cap and when anti-clockwise rotation, produce snap-in force, promptly destroy body (5) and bottle cap (7) interlock, and the serration of circular groove (4) does not produce opposite force, thereby destroy body (5) and separate from circular groove (3) by force with main body (1), form the bottleneck of new band saw profile of tooth breach, add bottle cap for the second time and can not seal this plastic bottle more.

Claims (3)

1. anti-secondary uses plastic bottle, the plastic bottle that uses of beverage packaging aspect particularly, this plastic bottle has a plastic bottle main body (1), a bottle neck screw thread (2) is arranged thereon, it is characterized in that bottle neck screw thread (2) top is joining one and destroying body (5), destroying between body (5) and the bottle neck screw thread has a circular groove (3), also has a bottle cap (7) and bottle neck screw thread (2) and destruction body (5) to match.

2. plastic bottle according to claim 1 is characterized in that circular groove (the circuit band profile of tooth of (3).

3. plastic bottle according to claim 1, bottle cap (7) and the interlock of destruction body (5) when it is characterized in that the uncork lid.

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