CN1830730A

CN1830730A - Hinge type antitheft bottle cap

Info

Publication number: CN1830730A
Application number: CNA2006100052092A
Authority: CN
Inventors: 郭永军
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-01-01
Filing date: 2006-01-01
Publication date: 2006-09-13

Abstract

A hinged antitheft bottle cap is composed of a cap body, an antitheft ring under the cap body, and a hinge (slipknot structure, curved band, or hidden hinge) for linking cap body with antitheft ring.

Description

Articulated anti-theft bottle cap

Technical field the present invention relates to the lid of a kind of commodity packaging bottle or similar containers, specifically relates to the screw-type pilfer proof closure that a kind of bottom is connected with anti-theft ring.

Background technology is present, a lot of beverage product adopts PET bottle packing on the market, be equipped with the screw-type antitheft plastic cap of bottle, be called: the improvement structure (ZL97234241.9) of the bottle cap of structural development (ZL96230193.0), bottle cap, bottle cap (ZL02282717.X), single-piece plastic bottle cap Chinese patent specification sheetss such as (ZL02260993.8) referring to name.Its principal character comprises lid (claiming to cover body again) and the anti-theft ring that is connected the lid bottom, be connected by the connecting bridge (being also referred to as point of connection, strip of paper used for sealing) that can rupture between the two, screw thread fit between lid and the bottleneck, anti-theft ring is locked on the bottleneck by the latch that distributes on its internal diameter, rotation bottle cap during unlatching, strength by screw thread makes anti-theft ring and lid dialysis, realize opening, anti-theft ring then is retained on the bottleneck and can rotates, and the feature when separating by coupled condition between lid and the anti-theft ring and fracture embodies anti-pirate of the open function.Above-mentioned antitheft plastic cap of bottle is used very general, be widely used in the encapsulation of soda, tea beverage, fruit juice and bottled water etc. at present, and begin to be used for the encapsulation of beer, realized that standardized production is (referring to Chinese National Standards: GB/T17876-1999 packing container-antitheft plastic cap of bottle), cost is very low, have directly perceived, the advantage of simple structure of reliable, the anti-pirate of the open effect of sealing property, development prospect is good.

The feature of environmental protection of bottle cap has been counted as weighing the major criterion of commodity performance and image.Usually mention recovery, the environmental issue of PET bottle on the packing circle, then noticed the environmental issue of anti-theft ring in the industry at plastic theftproof cover, deal with problems by being connected anti-theft ring on the bottleneck or being connected on the lid of opening, but but ignored by people by the environmental issue that lid itself is produced always, in vogue day by day along with the PET bottled drink, this problem day by day highlights.The consumption of above-mentioned Packaging Bottle and bottle cap is a huge astronomical figure in the reality, and its empty bottle can be recovered regeneration, with protection limited resources and minimizing rubbish.In the reality, will find a phenomenon when seeing returnable bottle in heaps, reclaiming the bottle overwhelming majority of coming has not all had bottle cap, and the beverage bottle cap that these are lost in a large number means the pollution of environment and the waste of resource.In some crowded public places, usually seeing is scattered on the ground a lot of beverage bottle caps,, stadium along the line, cinema, park etc. such as railway, this is the imbody of existing beverage bottle cap environment-friendly function disappearance, before the actv. solution occurred, the public bore its environmental issue patiently.In the long run, adopting the environmental protection bottle cap is the developing direction of bottled drink, also is the latent demand of customer to ideal beverage.This problem has related to different consumption habit of numerous customers and different consumer environments, the system of depending merely on also is not enough to solve, if assist head it off by the technological means of improving Bottle cap structure and so on, can be more simple and easy to do, meet relevant manufacturer of bottle cap and customer's interests more.

Another problem is, the anti-theft bottle cap of prior art, and when in customer's drink bottle during beverage, a hand-held bottle need take the another hand and take bottle cap, to prevent that bottle cap is contaminated or to lose.Particularly when busy, when everybody gets together or during outdoor activities, more make us feeling inconvenience.This problem not only is confined to beverage bottle cap, and also there is this problem in other field, as Medicines and the used bottle cap of chemical industry medicament.

Summary of the invention at anti-theft bottle cap in the industry, can be reliably between lid and the anti-theft ring when all being devoted to usually pursue to open, fracture fully separates, the present invention then in contrast, be devoted to when opening, how to prevent that lid from separating with anti-theft ring, and then prevent that bottle cap from separating with bottleneck, to solve existing existing environmental issue of anti-theft bottle cap and awkward problem, and by a series of enlargement technologies, make its structure more reasonable, satisfy good looking appearance, low cost, be suitable for requirement such as manufacturing and encapsulation at a high speed.

Its technical scheme is, but described bottle cap comprises lid and the anti-theft ring that is connected the dialysis of lid bottom, screw thread fit between lid and the corresponding bottleneck, the anti-theft ring lockable also is retained on the bottleneck, also be provided with hinge between lid and the anti-theft ring and the two be connected lid, anti-theft ring, the moulding of hinge three in one.The effect of hinge is to connect with movable, and the intensity of set hinge and service life should be satisfied functional requirement.The material of bottle cap can adopt polyolefins plastics or other to have flexible and elastomeric material.Sealing means between lid and the bottleneck has multiple version to be widely used in reality, repeats no more.The connection mode of anti-theft ring and lid belongs to the prior art part, adopts the bridging access node structure of easy fracture usually, and concrete form can be tangible strip or recessive point-like, also can be the thin skin shape structure of extending along seam between lid and the anti-theft ring.The connection mode of anti-theft ring and bottleneck, the latch of annular spread normally is set at the anti-theft ring internal diameter in the reality, with the step of bottleneck relevant position snap close mutually, to prevent that anti-theft ring from separating with bottleneck, the form of described latch can be double wedge shape, convex hoop shape or longer relatively elasticity fin shape, ring plate shape preferably.The connection mode of anti-theft ring and bottleneck also comprises and uses the external force mode from outside to inside anti-theft ring being forced lock to be embraced in the bottleneck outside, is similar to the locking closure mode of existing aluminium matter pilfer proof closure.

The concrete form of hinge and structure have multiple, a kind of scheme is, described hinge is the knot that can be undone by a pull structure, be connected to form by box and the child button and the connecting band that snap in the box, described box or sub-button can be set directly on lid, the anti-theft ring or be arranged on the connecting band that is connected with lid, anti-theft ring.Described box can be ring-type, cavernous structure or depression shape structure, and described son button is generally the shape of big head with slender neck, snaps in the box to be difficult for deviating from voluntarily.The infinite in length system of described connecting band, what be provided with as required is changeable.The hinge of this structure is many one knot that can be undone by a pull assembly process, also a bit weaker with existing filling and capping compatibility of apparatus, but that its advantage is to rotate behind the Cover opening is very flexible, handy and effect is very novel, and hinge body is still with bottle cap one-body molded.

Extend thus more specifically that the hinge scheme is, described son button protrudes and is arranged on the external diameter of anti-theft ring, and corresponding box is arranged on the connecting band that the lid lower edge extends laterally.By the rotation between box and the son button, the lid after the unlatching can be rotated to the side-lower of bottleneck.Described box can be ring-type or be positioned at poroid on the connecting band.The lid of this scheme rotates very flexible, can be at any time takes down or connects upper cover body from knot that can be undone by a pull.

Extended another concrete hinge scheme is, described son button is connected with anti-theft ring by connecting band, and corresponding box is arranged on the end face of lid and is the depression shape, and the depression main body is to covering internal projection.The hinge of this scheme is connected the top of bottle cap, and the mode that rope is tied up to the vessel cap top of habitually practising with people is close, relatively meets people's use habit, and outward appearance is also more eye-catching.

The another kind of structural form of hinge is, described hinge is crooked band shape, protrudes from the lateral location of bottle cap, and the hinge upper end is connected in the lateral surface of lid lower edge, and the hinge lower end is connected in the lateral surface of anti-theft ring.The advantage of this scheme is easy to implement, for existing most of side somatotype antitheft plastic cap of bottle moulds (Hough mould), process and to realize through simple the transformation, side direction forming slide at its mould (also has the Hough of title piece, usually be mainly used in the anti-theft ring part of moulding plastics anti-theft bottle cap) on, directly processing the hinge die cavity that communicates with anti-theft ring die cavity and lid die cavity gets final product, be easy to accomplish, and hinge length can be set to long or shorter as required, specifically be subjected to the influence of die side, and be not subjected to the influence of bottle cap height dimension to the forming slide size.

In view of the variety of hinge, the direct and indirect cost of the bottle cap of trying not to increase because increase hinge.The filling production lines of automation requires the profile of bottle cap to answer regular unification, if hinge obviously protrudes outside bottle cap, capping has certain influence to high speed.Characteristics according to anti-theft bottle cap, the scheme that solves is, described hinge is recessive hinge, hinge be embedded in the bottle cap sidewall with bottle cap sidewall uniform internal diameter, etc. external diameter or isometrical substantially, or directly radially penetrate by the bottle cap sidewall with cutting mode and to isolate and form, the hinge inboard promptly is the inner chamber of tegmental wall.The radial wall thickness that is to say hinge not necessarily is equal to fully with the thickness of bottle cap sidewall, between hinge body and the tegmental wall that links to each other may be that internal diameter equates, external diameter equates or equal diameters substantially.Can be by the method shaping hinge of mould molding or molding-excision forming, the outward appearance of hinge is concordant substantially with the bottle cap sidewall.Such hinge is very simple, combines together with bottle cap, can make bottle cap to greatest extent with existing filling and capping hardware compatibility.

Sometimes wish that hinge can grow a bit, strive for bigger movable amplitude, do not wish therefore to increase the axial dimension of bottle cap simultaneously again.Can utilize the girth of bottle cap sidewall to increase the length of hinge, its scheme is that the part of described hinge or hinge body is band shape circumferentially extends along the bottle cap sidewall, to increase length and movable amplitude or to change closure.That is to say, the hinge between being connected in up and down, its band shape main body is not that above-below direction extends, but extends along the bottle cap circumferencial direction.Concrete extension mode can be that circumferential horizontal-extending, peripheral, oblique are extended, circumferentially spiral extension, curve extension or round bending are extended.Adopt this scheme that hinge is prolonged, make hinge length along circumferentially increasing rather than common increase vertically, make the design of hinge length more random, needn't too be subjected to the restriction of bottle cap size, in the time of can bringing bottle cap to open smoothly, and the function of expansion hinge.Change the closure of hinge, just change the bearing of trend of hinge body, part, and the join relative position of end of hinge and lid, hinge and anti-theft ring, can not influence the regular of bottle cap outward appearance, can enrich the version of hinge, improve hinge and bottle cap, integral body and local aesthetic feeling, particularly for hinge by the cutting mode moulding, can adapt to, improve cutting technique, optimize, simplify the structure of cutting tool.

A kind of concrete improvement project of practicality is, described hinge is band shape along the circumferential spiral extension of bottle cap sidewall, and the seam between lid, anti-theft ring, the hinge three is a same helix line.Can select left-handed twist or right-hand helix as required.The bottle cap outward appearance of this scheme is terse attractive in appearance, helix seam between the three is by the words of cutting mode moulding, its cutter is very simple, only need a plane blade to get final product, be very suitable for anti-theft bottle cap existing technical conditions and bottle cap cutting equipment in the industry, particularly be suitable for compression moulding-excision forming technology in vogue in the industry, be easy to just can utilize existing most of bottle cap mould and associated mechanical to produce novel bottle cap.

After the length of described hinge is rotated a circle along the bottle cap sidewall by helical cuts, further the length of extending decides, also relevant with the design width of the axial dimension of bottle cap and hinge, according to different design philosophys and function needs, it can be very short, 1/4 week, 1/3 week, 2/5 week, a week or several weeks.Described helix seam (otch) is the easy fracture seam, is evenly distributed with the connecting bridge (just not cut company's point) of right quantity along helix line, makes lid, anti-theft ring, hinge three keep firm relatively connection, and behind the bottle cap of outwarding winding complete rupture.

The hinge that circumferentially extends for all or part of edge, when described hinge be provided with longer relatively the time, in the circumferential extending part of hinge both sides the good fixed hinge of connecting bridge that right quantity is set up and down, the rigidity of maintenance Bottle cap structure.Disadvantageous aspect is, may cause in the process of bottle cap of outwarding winding, the distance that lid rises along screw thread, be not enough to break all connecting bridges, the hinge connecting bridge of both sides up and down particularly, thus need after outwarding winding, directly the remaining connecting bridge that do not rupture be pulled apart with the strength of hand again lid, though the customer who has can not mind such opening ways, effect and sensation in the time of can influencing the bottle cap unlatching after all to a certain extent.Hinge for circumferential horizontal-extending, circumferential spiral extension, this way to solve the problem is, the circumferential length of extending of described hinge is set was no more than for 1/3rd weeks, seam areas between lid and anti-theft ring is along circumferentially being evenly distributed with the right quantity connecting bridge, seam areas between hinge and lid, hinge and anti-theft ring is not provided with connecting bridge, or a connecting bridge only is set, and/or a connecting bridge only is set in the hinge and the anti-theft ring seam areas of holding of joining away from hinge and anti-theft ring in hinge and the lid seam areas of the end that joins away from hinge and lid.For the helix joint-cutting, only be present in the middle most of position of helix line along helix line well-distributed connecting bridge, the small part position at helix line two ends does not then have connecting bridge.

How fixedly to be a very important problem behind Cover opening, require to make it to try one's best, and fixing mode to be simple and convenient away from the peristoma of bottleneck.It is sectional construction that described hinge can be set, have an overturning pivot and the traction belt that is respectively in the overturning pivot both sides, traction belt is connected between lid and the anti-theft ring, described overturning pivot can be the lid lower edge a bit, from a convex edge that the lid lower edge stretches out downwards or be connected in the lid lower edge and the anti-theft ring upper limb between the frenulum of a compactness, traction action by means of traction belt, lid after the unlatching downwards elasticity open and upwards elasticity close up, when lid opens its oral area roughly up, the axial location of overturning pivot exceeds the position of both sides traction belt.The advantage of this scheme is that the traction belt that is positioned at both sides is circumferentially arranged side by side around the bottle cap sidewall, with elasticity snap-action open-and-close mechanism of overturning pivot formation of centre, the upset lid is very convenient, opening the overhanging lid in back and be fixed naturally, can at will not rock, is a kind of very desirable fixed form.Can be provided with between described overturning pivot and the both sides traction belt along circumferentially seamless and link to each other or become a monomer hinge, relatively be adapted to pass through mould molding by the thin skin structure is continuous.It is that two sides separate NA banded structure that described traction belt also can be set, and relatively is adapted to pass through the cutting mode moulding, is very suitable for existing bottle cap is transformed.With respect to the snap-action combined hinge of prior art, the structure of this scheme and molding mode are very simple.Because hinge is to make moulding under the lid closure state, need on the dynamic model of mould and cover half, complicated amalgamation molding structure be set.If the not necessarily parallel straight band shape of traction belt two also can be that symmetry tilts to be " eight " font in case of necessity, even the part that the traction belt main body can be set circumferentially bends extension along bottle cap, to increase the length and the movable amplitude of traction belt.

Generally, the simplest hinge can be directly connected between lid lower edge and the anti-theft ring upper limb.Because horizontally extending slit is narrow between lid and the anti-theft ring usually, be connected in the axial dimension deficiency of hinge between the two, when the length that needs hinge is longer, the hinge upper end can be set to join from above position of lid lower edge and lid, and/or the hinge lower end joins with upper/lower positions and anti-theft ring from the anti-theft ring upper limb, to increase the axial dimension of hinge.That is to say that the upper end of hinge upwards surpasses the lower edge of lid, the lower ends downward of hinge surpasses the upper limb of anti-theft ring, under the prerequisite that does not increase the bottle cap axial dimension, has increased the axial dimension of hinge.Particularly, when hinge body when extending axially, can increase the length of hinge body, thereby increase the movable amplitude of hinge; When hinge body is circumferentially extension, can increases the width of hinge body, thereby increase the rigidity and the intensity of hinge.The concrete form that extend up or down at described hinge two ends is not limited to vertically extend vertically, also comprises diagonally extending, spiral extension, curve extension or bending extension repeatedly vertically.

For foregoing circumferential horizontally extending hinge, the hinge upper end joins from above position of lid lower edge and lid, can form the hinge body large part in the above position of lid lower edge, equally, the hinge lower end joins with upper/lower positions and anti-theft ring from the anti-theft ring upper limb, can form the hinge body large part in the anti-theft ring upper limb with upper/lower positions.The hinge appearance of this two states has obvious difference, the state that hinge is stretched by pulling force also can make the customer feel different with effect, particularly after bottle cap is opened, lid has more obvious difference when hanging on bottleneck side or bottleneck support ring below by hinge, and the right-hand man use habit common with the customer is relevant.

Because between lid and the bottleneck be screw thread fit, has certain socket degree of depth, and Safety ring locks fixes on the bottleneck bottom, can rotate but and can not move up, and lid rotated up when set hinge can not influence the unlatching bottle cap.The length that requires the length of described hinge or be subjected to stretch to upper pulling force greater than bottle lid opening process in the distance that moves up of lid, make bottle cap to open smoothly.

For foregoing all hinges structure,, can cause difficulty to revolving on the Cover opening when hinge is provided with more in short-term.One of solution is, is useful on the latch of locking bottleneck on the anti-theft ring internal diameter away from the site distribution of hinge, then do not have the axial location of latch or latch relatively low near the position of hinge, makes that this position can be by upwards pulling of hinge.Described latch can be the double wedge of annular spread or continuous bulge loop.In existing technical scheme, be used to lock the latch of bottleneck on the anti-theft ring internal diameter, all be annular one week of horizontal distribution.Can make one week of latch less than even have only little half cycle by the method for mould molding or cutting removal at this.When described latch has enough elastic force and intensity, can guarantee equally that Safety ring locks fixes on the bottleneck not come off.The non-level of latch of annular on the anti-theft ring internal diameter is arranged, tilt to arrange but be, high and relatively low away from a side shaft of hinge near a side of hinge to the position.

Another kind of solution is, described hinge is a combined hinge, and the banded structure of two symmetries of joining in the middle of having circumferentially extends along the bottle cap sidewall respectively, to increase the movable amplitude of hinge, particularly increases the movable amplitude of above-below direction.Particularly, two symmetrical banded structures that join when described centre are non-level when circumferentially extending, and can provide multidirectional freedom of movement for combined hinge; When it circumferentially extended for level, the effect of this part just increased the amplitude of combined hinge above-below direction activity, and the freedom of movement of other direction is realized by the other parts of combined hinge.This structure can be combined with foregoing all hinges structure, mainly provides to revolve required above-below direction freedom of movement in the bottle lid opening process on the lid.That is to say that described combined hinge can comprise foregoing any hinge arrangement.

By hinge lid and anti-theft ring are coupled together, can also obtain extra additional function.For bottle is easy to carry, can further expand scheme noted earlier, the part that described hinge or hinge are set is the shape that arches upward, or is the shape that arches upward after the traling again at Cover opening, can insert for finger and guide and support.This scheme is suitable for aforementioned all hinge arrangements, and when lid was connected on the bottleneck, hinge used as drop handle simultaneously, makes things convenient for the customer to take with portable, and is laborsaving and be difficult for slippage.

When hinge is longer, lid skew-falling after the unlatching freely swings in the bottle side may influence beverage in the drink bottle, and the scheme of solution is that anti-theft ring is provided with the pincerlike bayonet socket that radially protrudes, be used for holding after bottle cap is opened the peristoma of lid, lid can be fixed after opening.

Be called in name: disclose a kind of bottle cap in a kind of Chinese patent specification sheets that prevents reusable novel plastic seal bottle cap (ZL95238147.8), comprise lid and the skirt section that is connected the similar anti-theft ring of lid bottom, its lid also is connected by a connecting band with the skirt section, and its skirt section is provided with L shaped breach and fracture port simultaneously.The described skirt section of this patent specification is not an anti-theft ring of the present invention, is defined anti-thefting strip in the national standard noted earlier and belong to, and described skirt section can not be retained on the bottleneck after bottle cap is opened.Described connecting band is only emphasized linkage function, and hinge of the present invention is then emphasized linkage function and movable function, and the two has substantive difference.Its purpose that connecting band is set is not to allow the bottle cap after opening be connected on the bottleneck, but allows post-rift skirt section break away from bottleneck with lid, and its purpose and effect are just in time opposite with purpose of the present invention and effect.On the other hand, this patent has also been mentioned the environmental protection of useless bottle and bottle cap and has been reclaimed, emphasize because of described skirt section stay on the bottle and the two material difference to recovery bring unfavorable, what solve is handling problem after reclaiming.The present invention then emphasizes to solve the recovery problem of bottle cap, as for how to handle, by handler solution subsequently.

For the anti-theft bottle cap of prior art, pursue in the industry for a long time can intuitively, fully disconnect between the lid and anti-theft ring when opening and separate, and with this as one of criterion of good bottle cap.Do not have complete dialysis (in time not disconnecting such as the somewhere connecting bridge) between rear cover body and the anti-theft ring if open, perhaps lid does not separate fully with bottleneck, and then this bottle cap can be regarded as off gauge.And as the hinge of attaching parts, particularly compact hinge may influence above-mentioned purpose and make anti-theft effect produce ambiguity, and is inconsistent with above-mentioned recognised standard.Environmental protection, facility are the eternal pursuits of people, with hinge bottle cap are connected with bottle, can have this two aspects advantage concurrently, to society, all favourable to the customer.Problem is that concerning plastic theftproof cover lid and anti-theft ring connected together originally, is pursuing how to allow lid separate smoothly with anti-theft ring with the dealer always, and frenulum is applied in needs a kind of reverse thinking on the anti-theft bottle cap.

As mentioned above, those inferior-quality anti-theft bottle caps in the reality, can occur open the connecting bridge timely open circuited situation of failing in somewhere, back in the chance, lid is connected bridging and is hung on bottleneck one side at this moment, can play the effect of hinge temporarily, but, to rupture after all because this connecting bridge is not hinge after all.Hinge of the present invention, be for connecting and the special device that is provided with of activity purpose, requirement has enough Joint strenghts and service life, if in use fracture has taken place in hinge, it then is an off gauge, have clear and definite purpose and requirement, fully opposite with the purpose and the effect of connecting bridge.

From architectural feature, the advantage of screw thread is that failure-free can repeat sealing property, and the advantage of anti-theft ring is anti-intuitively pirate of the open performance, and the advantage of hinge is environmental protection and facility.The present invention is combined in screw thread, anti-theft ring, this three technology feature of hinge on the monomer bottle cap first, the three is had complementary advantages, obtained unforeseeable technique effect, be specifically related to many aspects such as the feature of environmental protection, comfort feature, safety, advance, promotional, novelty, division is as follows:

The feature of environmental protection: bottle cap will together be recovered along with bottle, can obviously improve the percent recovery.The mode that this binding is reclaimed makes anti-theft bottle cap meet generally acknowledged 3R1D green package principle more.Although the material of bottle cap and bottle is incomplete same, with prior art will reclaim bottle after concentrating and bottle cap by shear, sorting arrangement separates is easily.

Comfort feature: bottle cap links to each other all the time with bottle, for the customer separates a hand, or else with being that bottle cap is contaminated or lose and worried convenient opening at any time or the traling bottle cap.By means of the ancillary technique means, the bottle cap after the unlatching can be fixed easily, can not hinder process of consumption.

Safety: because of bottle cap links to each other by hinge all the time with bottle, it is issuable because gaseous tension is excessive in the bottle effectively to stop carbonated beverage, the problem that the bottle cap bullet flies to hurt sb.'s feelings during unlatching.Further can cancel the being used for exhaust gap of disappointing decompression in advance that is arranged on usually on whorl of bottleneck and the bottle cap screw thread, recover due intensity of screw thread and smoothness, thereby strengthen the sealing property of bottle cap and the stability of unlatching moment of torsion.For above-mentioned reasons, existing soda common design is the back abscission ring that loses heart earlier, makes its theftproof performance beat certain discount.Because the safety of new bottle cap has obtained guarantee, present then can adopt disappointing design behind the first abscission ring, improve its theftproof performance.

Advanced: compare with the bottle cap that has hinge in the prior art, the structure of bottle cap of the present invention can be done very simply, and its reason is an open mode when being other hinge bottle cap moulding, and is closure state during bottle cap moulding of the present invention.In the existing bottle cap forming technique, compression moulding-excision forming technology (compression molding, Continuous Compression Molding, abbreviation CCM) be the representative of pioneering technology, applicable this technology of the present invention is produced, and for above-mentioned reasons, the bottle cap in the reality is also produced by compression moulding-cutting technique without any a hinged bottle cap in the industry.On the other hand, (injection mo(u)lding, Injection Molding, abbreviation IM) compares with traditional injection molding process, because existing hinge bottle cap is at the open mode compacted under, the oad of its mould is relatively large.And bottle cap of the present invention is injection mo(u)lding under closure state, and the mould bases of same size can hold the die cavity of nearly two multiples, and its production efficiency is higher, and cost is lower.Because the effect of connecting bridge, hinge of the present invention and bottle cap can be one-body molded better, even the hinge of knot that can be undone by a pull structure noted earlier, constitute by box and two moving parts of son button, it is one-body molded with lid and anti-theft ring that these two parts remain, and only needs a mould, a molding machine to produce.

Promotional: as the part of commodity packaging, particularly beverage packaging, anti-pirate of the open function is absolutely necessary, and the present invention has inherited this advantage well.Environmental protection, convenience, novel bottle cap will inevitably produce stronger attractive force to the customer.By the ancillary technique means, make hinge have the function of drop handle, the consideration and tender feeling that embody to the customer.In addition, because the particularly compact hinge of hinge can guarantee that anti-theft ring is along with lid rotates synchronously, therefore the seam between lid and the anti-theft ring can change flat mouthful of traditional pattern, make the seam pattern that some can't be made traditionally, seam, step seam, serration seam, ripples shape seam etc. for example tilt, the beverage that can be different brands is provided with exclusive seam pattern, increases the decorative colour of bottle cap.

Novelty: aluminium matter anti-theft bottle cap the earliest is born existing over half a century in the world, still is widely used so far.The antitheft plastic cap of bottle that is come by the differentiation of aluminium anti-theft bottle cap comes across the eighties in last century, technology innovation for many years mainly concentrates on the improvement to its material, manufacturing process, spiral cover technology, sealing property, theftproof performance, and it is few for the improvement of anti-theft bottle cap basic structure, compare at the beginning of the anti-theft bottle cap of today, its unlatching, result of use and function and birth and do not have obvious variation.To have plastic theftproof cover now and be transformed into the environment-friendly type pilfer proof closure and have inborn advantage, simple.The present invention introduces hinge feature in the basic structure of anti-theft bottle cap, this " environment-friendly type anti-theft bottle cap " and Packaging Bottle, it is one that the customer has bought in the hand, open with after be still one, can not produce extra rubbish therebetween, having plurality of advantages simultaneously, will be package bottle cap developing direction from now on.From production technology, image appearance, be little improvement to existing bottle cap; From Bottle cap structure, result of use, the present invention has changed the basic structure of traditional anti-theft bottle cap, and will change occupation mode and the custom of people to beverage bottle cap to a certain extent, is the significant innovation to modern beverage bottle cap.The present invention in time occurs at beverage circle of progressively fashion-orientation, also will impel the beverage closure kind more rich and varied.

Description of drawings

Fig. 1 is embodiment one a bottle cap forward sight External view.

Fig. 2 is a bottle cap backsight External view shown in Figure 1.

Fig. 3 partly cuts open scheme drawing for bottle cap shown in Figure 1.

Fig. 4 is one of bottle cap result of use figure shown in Figure 1.

Fig. 5 is two of bottle cap result of use figure shown in Figure 1.

Fig. 6 is a kind of version of bottle cap shown in Figure 1.

Fig. 7 is the another kind of version of bottle cap shown in Figure 1.

Fig. 8 is embodiment two bottle cap External views.

Fig. 9 is the anti-theft ring scheme drawing of bottle cap shown in Figure 8, ruptures from hinge.

Figure 10 is bottle cap result of use figure shown in Figure 8.

Figure 11 is a kind of version of bottle cap shown in Figure 8.

Figure 12 is embodiment three bottle cap External views.

Figure 13 is embodiment four bottle cap External views.

Figure 14 is bottle cap result of use figure shown in Figure 13.

Figure 15 is embodiment five bottle cap External views.

Figure 16 is embodiment six bottle cap External views.

Figure 17 is embodiment seven bottle cap External views.

Figure 18 is embodiment eight bottle cap forward sight External views.

Figure 19 partly cuts open scheme drawing for bottle cap shown in Figure 180.

Figure 20 is bottle cap result of use figure shown in Figure 180.

Figure 21 is a kind of version of bottle cap shown in Figure 180.

Figure 22 is embodiment nine bottle cap original appearance figure, and hinge does not connect.

Figure 23 is a bottle cap finished product appearing diagram shown in Figure 22, and hinge connects.

Figure 24 partly cuts open figure for bottle cap shown in Figure 22.

Figure 25 is bottle cap result of use figure shown in Figure 22.

Figure 26 is embodiment ten bottle cap packaging effect figure.

Figure 27 is bottle cap result of use figure shown in Figure 26, and bottle cap is the half-sectioned attitude.

Figure 28 is embodiment 11 bottle cap packaging effect figure.

Figure 29 partly cuts open figure for bottle cap encapsulation state shown in Figure 28.

Figure 30 is embodiment 12 bottle cap External views.

Figure 31 is bottle cap result of use figure shown in Figure 30, and hinge is pulled out and done drop handle usefulness.

Figure 32 is embodiment 13 bottle cap External views.

Number in the figure: the 1-lid, the 2-anti-theft ring, the 3-hinge, 11-locatees latch, the 12-connecting bridge, the step of 13-lid peristoma, 21-latch, 22-limited bayonet, the pincerlike bayonet socket of 23-, 24-lid bulge loop, 31-button, 32-box, the 33-connecting band, 34-traction belt, 35-overturning pivot, the connecting bridge of 36-banded structure, snap ring in the thinning area of 37-hinge, 38-depression, the 39-banded structure, the 41-whorl of bottleneck, 42-bottleneck bulge loop

The specific embodiment

Embodiment one, (referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7) seam areas between lid 1 and anti-theft ring 2 is evenly distributed with the connecting bridge 12 of the easy fracture of right quantity, also be connected between lid 1 and the anti-theft ring 2 by hinge 3, hinge 3 is recessive hinge, be embedded in the bottle cap sidewall one-body molded with lid 1 and anti-theft ring 2, and with bottle cap sidewall uniform internal diameter, etc. external diameter or substantially isometrical, hinge 3 inboards promptly are the inner chambers of tegmental wall.Hinge 3 is band shape and circumferentially extends along the bottle cap sidewall, and its length approaches 1/3 girth of bottle cap approximately, so that lid 1 revolves on can be smoothly when opening.And hinge 3 stage casings than large part connecting bridge is not set, be beneficial to lid 1 and open when revolving all connecting bridges 12 and can be broken fully.

Generally, lid 1 is opened the back and is connected the lateral location that is hung on bottleneck by hinge 3, anti-theft ring 2, lid 1 sidewall flexiblely leans sidewall (the PP material of bottleneck, referring to Fig. 4), perhaps be flapped toward the lateral location (HDPE material) of bottleneck naturally, when drinking, the customer can or not hinder beverage in the drink bottle with bottle cap toward the outer side naturally; Lid 1 can also be screwed downwards in case of necessity, be hooked on bottleneck neck ring (support ring) below naturally and away from bottleneck end face (referring to Fig. 5), no matter which type of bottle type under any circumstance also can not be in the way, applicable to all big bottle or bottle beverage packagings.

Bottle cap wherein shown in Figure 1 only is that with the difference of bottle cap shown in Figure 6 the direction of hinge 3 extensions is different.Bottle cap shown in Figure 1 is then that with the difference of bottle cap shown in Figure 7 the form of hinge 3 is different, and just the joint-cutting of the two is inequality, cuts used cutter difference.The helix joint-cutting of bottle cap shown in Figure 1 makes that the bottle cap outward appearance is more terse, has both realized the function of hinge, can keep compatible with existing all relevant devices again, and cuts all cutters and blade has also simply arrived ultimate attainment.The curvilinear figure joint-cutting of bottle cap shown in Figure 7 makes bottle cap and hinge 3 better appearance, applicable to injection mo(u)lding, also applicable to non-contacting other cutting mode, comes excision forming as advanced person's laser cutting machine.

Embodiment two, and the hinge 3 of (referring to Fig. 8, Fig. 9, Figure 10, Figure 11) this routine bottle cap is than the comparatively short and small compactness of last example, and after bottle cap was opened, the peristoma of lid 1 all the time can not be away from anti-theft ring 2.By the elasticity of hinge 3, the lid 1 after the unlatching can be torqued into the side lower of bottleneck and put (referring to Figure 10), and lid 1 oral area is roughly towards the bottleneck outer wall, and the top peristoma of lid 1 tangles the projection of bottleneck outer wall so as to fixing.Described projection can be the special-purpose bulge loop 42 that is provided with outside bottleneck, also can be the outer existing screw thread 41 of bottleneck.

Because the hinge 3 in this example is shorter and smaller, when revolving in lid 1 unlatching, hinge 3 will inevitably upwards spur anti-theft ring 2.Can be arranged on that the position away from hinge 3 has the latch 21 that is used to lock bottleneck on anti-theft ring 2 internal diameters, then not have latch (referring to Fig. 9), make that this position can be by upwards pulling of hinge 3 near the position of hinge 3.The latch of molded whole circle is earlier removed big half-turn latch near hinge 3 by the mode of cutting again, only stays away from hinge 3 a part of latches.

Bottle cap shown in Figure 11 is that with the difference of bottle cap shown in Figure 8 the form of hinge 3 is different, just the joint-cutting difference of the two.The hinge 3 of bottle cap shown in Figure 11 be helical circumferential to extension, hinged direction is changed, it is fairly simple to cut used cutter.

Embodiment three, (referring to Figure 12) compares with embodiment one, the hinge 3 of this routine bottle cap is a combined hinge, the banded structure 39 of two symmetries of joining in the middle of having circumferentially extends along the bottle cap sidewall respectively, and repeatedly bend extension to increase length along the bottle cap sidewall, revolve to make things convenient for lid 1 to open smoothly, and make combined hinge have very big freedom of movement.Be connected with the connecting bridge 36 of easy fracture between the banded structure 39 of hinge 3 main bodys and the bottle cap wall, so that its not perk voluntarily.The upper end of two hinges 3 engages the back and is connected with lid 1, and this connecting portion 37 is done reduction processing, so that lid 1 upset is more flexible.Be provided with protruding location latch 11 in lid 1 top edge near the position above the hinge 3, the periphery of location latch 11 depression relatively goes down, and it can too much not protruded outside, is unlikely to influence automatic packaging process.Be provided with corresponding limited bayonet 22 in the position between two hinges on the anti-theft ring 2.After bottle cap was opened, the lid 1 that overturns downwards surpassed 180 degree, expansions that be stretched of hinge 3 main bodys of bending, thus the location latch 11 at caping edge snaps in the limited bayonet 22 interior lids 1 of fixing of anti-theft ring.

Embodiment four, hinge between (referring to Figure 13, Figure 14) lid 1 and the anti-theft ring 2 is a unitized construction, constitute by an overturning pivot 35 and the traction belt 34 that is respectively in the overturning pivot both sides, traction belt 34 is that two sides separate NA banded structure, be connected between lid 1 and the anti-theft ring 2, overturning pivot 35 is exactly the lower edge of lid 1.Traction action by means of traction belt 34, lid 1 after rotarily opening downwards elasticity open and upwards elasticity close up, its oral area (referring to Figure 14, Figure 20) roughly up when lid 1 opens, overturning pivot 35 supports mutually with the upper limb of anti-theft ring 2, its axial location exceeds the position of both sides traction belt 34, makes lid 1 can not close up voluntarily.Compare with the radial type shampoo bottle cap that generally uses now, the better tightness of this programme bottle cap, the structure of hinge and molding mode are very simple.

Described traction belt 34 is not necessarily wanted the vertical state shown in the image pattern, can be the skewed or symmetric curvature shape of symmetry as required, circumferentially extends to increase length and elasticity along the bottle cap sidewall.The peristoma of lid 1 (being the seam between lid 1 and the anti-theft ring 2) can not be flat mouthful, but is step 13 (Figure 14), have protruding have recessed, in the hope of attractive in appearance.

Latch on anti-theft ring 2 internal diameters can adopt the structure (referring to Fig. 9) identical with embodiment two described latches, and according to the matching relationship between bottle cap and the bottleneck, its cut-out can be 1/2,1/3,2/5,3/5 etc. of whole latches.

Embodiment five, and the difference of (referring to Figure 15) this routine bottle cap and embodiment four described bottle caps is that the overturning pivot 35 of combined hinge is a convex edge of stretching out from lid 1 lower edge downwards.In lid 1 switching process and the upset finish after, overturning pivot 35 does not match with anti-theft ring 2, but matches with the outer wall of corresponding bottleneck.Its advantage is, when fin 35 was long, the locating effect that lid 1 is opened after the upset was reliable.

Embodiment six, the difference of (referring to Figure 16) this routine bottle cap and embodiment four described bottle caps is, has a bulge loop 24 on the external diameter of bottle cap, when passing through the mode moulding combined hinge of cutting, described bulge loop 24 is become the part of anti-theft ring 2 upper limbs, hinge overturning pivot 35 respectively after cutting apart, the convex edge structure that overturning pivot 35 becomes downwards and outwards protrudes in lid 1 switching process and after upset finishes, can play the effect of auxiliary positioning.

Embodiment seven, the difference of (referring to Figure 17) this routine bottle cap and embodiment four described bottle caps is, the overturning pivot 35 of combined hinge is the frenulum that is connected in a compactness between lid 1 lower edge and anti-theft ring 2 upper limbs, and its width is narrower than the traction belt 34 on next door, so that it is soft more.Can also can be provided with more thinnerly by the mode moulding of cutting by the mode moulding of molding.This routine hinge advantage be can make after lid 1 is opened rotary movement accurately and reliably, between lid 1 lower edge at overturning pivot 35 places and anti-theft ring 2 upper limbs inconsistent phenomenon can not take place.

Embodiment eight, the difference of (referring to Figure 18, Figure 19, Figure 20, Figure 21) this routine bottle cap and embodiment four described bottle caps is, the hinge of bottle cap is a kind of combined hinge, article two, traction belt 34 is not directly to be connected with anti-theft ring 2, but the banded structure 39 of two symmetries of joining by the centre links to each other indirectly with anti-theft ring 2.Described banded structure 39 relative broad and horizontal-extendings are radially to be penetrated by the bottle cap sidewall to isolate and form, can certainly be by the mode moulding of molding.Seam portion between banded structure 39 and the anti-theft ring 2 has the connecting bridge 36 of several easy fractures, is subjected to pulling force and ruptures when bottle cap is opened.The effect of banded structure 39 is degree of freedom that the above-below direction activity is provided for combined hinge, and lid 1 revolves on smoothly during with convenient the unlatching.Therefore the latch that matches with bottleneck 21 on anti-theft ring 2 internal diameters just can be complete annular (referring to Figure 19), and needn't resemble incomplete annular shown in Figure 9.

The difference of bottle cap shown in Figure 21 and bottle cap shown in Figure 180 is, overturning pivot 35 be between two traction belts 34 lid 1 lower edge a bit, rather than the convex edge of obviously stretching out downwards.Because the height dimension of bottle cap is limited, two traction belts 34 of hinge extend upward, and its upper end is positioned on the slim and sexy antiskid surface of bottle cap side outer wall, and the lower end of traction belt 34 still is positioned on the light face of bottle cap side outer wall.The hinge of this structure is adapted to pass through the mode moulding of cutting.

Embodiment nine, and the hinge between (referring to Figure 22, Figure 23, Figure 24, Figure 25) lid 1 and the anti-theft ring 2 is the knot that can be undone by a pull structure, are made of box 32 and son button 31 and connecting band 33.The child button 31 of big head with slender neck protrudes and is arranged on the external diameter of anti-theft ring 2, and box 32 is arranged on the connecting band 33 that lid 1 lower edge extends laterally, and shown in Figure 22 is state after the bottle cap injection mo(u)lding.By an assembly process, box 32 and son button 31 are interlocked.After bottle cap was opened, lid 1 can be rotated to the side-lower of bottleneck, and the oral area of lid 1 is towards bottleneck outer wall (Figure 25).Can son detain 31 thin necks and be set to oval column rather than cylindric, the box 32 that matches is set to same slotted eye.When lid 1 rotates to the bottleneck below, be subjected to the restriction of oval fitting surface, be difficult for swing.

This routine bottle cap has the advantage of outward appearance uniqueness, another benefit is, side somatotype injection mould (Hough mould) for some existing antitheft plastic cap of bottle, only need do change slightly, promptly can be the hinge that bottle cap adds a knot that can be undone by a pull formula, and rotate very flexibly, can be at any time take down or connect upper cover body from knot that can be undone by a pull.

Because the connecting band 33 shorter and smaller compactnesses of hinge so latch 21 shown in Figure 24 is not a horizontal distribution, but are tilt distribution in this example, and are higher relatively in the position away from hinge, and relatively low in position near hinge.Thereby anti-theft ring 2 can upwards be spurred, revolve on when opening to avoid hindering lid 1.

Embodiment ten, (referring to Figure 26, Figure 27) anti-theft bottle cap is encapsulated on the bottleneck, screw thread fit between lid 1 and the bottleneck, anti-theft ring 2 is connected lid 1 lower end by the connecting bridge 12 of easy fracture, and anti-theft ring 2 is locked on the bottleneck and can rotates with lid 1 by the latch 21 of annular spread on its internal diameter simultaneously.The upper end of hinge 3 is connected the peristoma position of lid 1, and the long ribbon shape of hinge 3 for arching upward can insert for finger and guide and support.According to different operatings needs and different mould structures, the external part of drop handle 3 can be flat stretch, sagging or upwarp.Shown in Figure 26 be level of approximation slightly to the scheme of declivity, the light face of anti-theft ring 2, drop handle 3 integral body and lid 1 bottom is by the dynamic model moulding of mould.Its material can be with high density polyethylene (HDPE) or similar neither too hard, nor too soft material, and drop handle 3 should be complementary with the weight of beverage with the intensity of anti-theft ring 2, can appropriateness thicken.Attractive in appearance for promoting, drop handle 3 not necessarily will be made wide, and elongated end can be wideer a little laterally.

On the anti-theft ring 2 with hinge 3 connecting portions above, be provided with a resilient pincerlike bayonet socket 23 that radially protrudes, after bottle cap is opened, the peristoma of lid 1 can be snapped in pincerlike bayonet socket 23 internal fixation.

Embodiment 11, and (referring to Figure 28, Figure 29) is that with the difference of embodiment ten this routine hinge is the knot that can be undone by a pull structure.Specifically be, the child button 31 of big head with slender neck is connected with anti-theft ring 2 by long connecting band 33, and the center that corresponding box 32 is arranged at lid 1 end face is depression shape small for mouth and large for cavity, and depression 32 main bodys are to the bottle cap internal projection.Described son button 31 is snapped in the described depression 32 by force, can not deviate from, connecting band 33 becomes can supply portable drop handle.

As shown in figure 28, the depression 32 of lid 1 end face can also be set to duplex, the child button 31 on connecting band 33 tops is interlocked with the snap ring 38 that is positioned at depression 32, and snap ring 38 is a tubular small for mouth and large for cavity, extends upward from the bottom of depression 32.The advantage of this structure is that depression 32 passes through mould molding easily, and the elastic ratio of snap ring 38 is better.When the intensity of drop handle is had specific (special) requirements, son can also be detained 31 and be set to independent part, latch structure just, and the upper end of connecting band 33 is set to ring-type or cavernous structure, the child button of latch structure is penetrated in the ring or hole of connecting band, hammer into again or the mode by ultra-sonic welded is fixed in the depression 32 of lid 1 end face, will have reliable pull strength.Son button 31 shown in Figure 28 is a vertical angle with the bearing of trend of connecting band 33, also son can be detained 31 positions, top that are arranged at connecting band 33, promptly keeps equidirectionals with connecting band 33, and result of use is identical, but easier of the molding mode moulding.

This example and go up the plastic cup that had drop handle on routine technical scheme and the market on the once popular caping and compare because of having anti-pirate of the open function, is more suitable in the packing that is used as beverage product, and has one-body molded, production and the low advantage of can cost.Though to compare cost high slightly with common antitheft plastic cap of bottle, but promoted this and be the recycle value of disposable Packaging Bottle, can be used as a portable container and be re-used in other occasion or purposes with the beverage bottle of finishing, for example carry and provide water for oneself for people, meet very much current environmental protection trend, the functions of use of its consideration and unique mode of appearance can play good sales promotion function to beverage class commodity.

Embodiment 12, and hinge 3 main bodys of (referring to Figure 30, Figure 31) band shape are circumferentially extended near a week along the bottle cap sidewall, and two ends are connected with anti-theft ring 2 with lid 1 respectively, and connecting portion 37 is done reduction processing.Also be connected with the connecting bridge 12 of easy fracture between hinge 3 main bodys and lid 1 and the anti-theft ring 2.

According to the difference of bottle cap inner thread rotation direction, can select the left end of hinge 3 or right-hand member to be connected with lid 1.Therefore common bottle cap all is accustomed to adopting right-hand screw thread, and bottle cap shown in Figure 21 is that the left end of hinge 3 is connected with the lid 1 of top, and right-hand member is connected with the anti-theft ring 2 of below.During unlatching, by the strength of lid 1 negative thread, connecting bridge 12 is broken.When screwing lid 1 once more, the anti-theft ring 2 that the lower end is gently held in available have gentle hands stops its rotations, and hinge 3 promptly can arch upward (referring to Figure 31) automatically, can be used for finger and inserts and guide and support.

Embodiment 13, and (referring to Figure 32) this routine bottle cap is a kind of version of going up routine bottle cap, and hinge 3 main bodys are along the circumferential spiral extension of the annular sidewall of bottle cap, and a connecting bridge 12 is set at a certain distance.According to use habit, the rotation direction of spiral should be consistent with the rotation direction of lid 1 negative thread, is generally dextrorotation.The unlatching effect and the using method of lid 1 are identical with last example.This routine advantage is, bottle cap is suitable for behind the compression molding part of rolling cut moulding hinge 3 again.Another advantage is, the length of hinge 3 is not subjected to the restriction of structure, wants the hinge of random length to accomplish, prerequisite is that bottle cap should have enough height dimensions.

In sum, the present invention is that example is introduced specifically practicing of technical scheme with beverage packaging common on the market, according to the bottle cap of technical solution of the present invention, can be applicable to fully on the Packaging Bottle of other various product, for example food seasoning bottle, flask for medicinal preparations, wide mouthed bottle.Because of length is limit, the present invention is showed in numerous technical characterictics respectively among above-mentioned each embodiment, the not necessarily perfect condition of array mode between the technical characterictic of each embodiment during practical application, can be accepted or rejected, simplify and reconfigure the technical characterictic that is occurred according to different demands.

Claims

1. articulated anti-theft bottle cap, comprise lid (1) but be connected the anti-theft ring (2) of the dialysis of lid bottom, screw thread fit between lid (1) and the corresponding bottleneck, anti-theft ring (2) lockable also is retained on the bottleneck, it is characterized in that: also be provided with hinge (3) between lid (1) and the anti-theft ring (2) and the two be connected lid (1), anti-theft ring (2), hinge (3) three in one moulding.

2. articulated anti-theft bottle cap according to claim 1, it is characterized in that: described hinge (3) is the knot that can be undone by a pull structure, be connected to form by box (32) and the child button (31) and the connecting band (33) that snap in the box, described box (32) or son button (31) can be set directly at lid (1), anti-theft ring (2) goes up or be arranged on the connecting band (33) that is connected with lid (1), anti-theft ring (2).

3. articulated anti-theft bottle cap according to claim 1, it is characterized in that: described hinge (3) is crooked band shape, protrude from the lateral location of bottle cap, hinge (3) upper end is connected in the lateral surface of lid (1) lower edge, and hinge (3) lower end is connected in the lateral surface of anti-theft ring (2).

4. articulated anti-theft bottle cap according to claim 1, it is characterized in that: described hinge (3) is recessive hinge, hinge (3) be embedded in the bottle cap sidewall with bottle cap sidewall uniform internal diameter, etc. external diameter or isometrical substantially, or directly radially penetrate by the bottle cap sidewall with cutting mode and to isolate and form, hinge (3) inboard promptly is the inner chamber of tegmental wall.

5. articulated anti-theft bottle cap according to claim 4 is characterized in that: the part of described hinge (3) or hinge body is band shape circumferentially extends along the bottle cap sidewall, to increase length and movable amplitude or to change closure.

6. articulated anti-theft bottle cap according to claim 4 is characterized in that: described hinge (3) is band shape along the circumferential spiral extension of bottle cap sidewall, and the seam between lid (1), anti-theft ring (2), hinge (3) three is a same helix line.

7. articulated anti-theft bottle cap according to claim 4, it is characterized in that: described hinge (3) is unitized construction, have an overturning pivot (35) and be respectively in the traction belt (34) of overturning pivot both sides, traction belt (34) is connected between lid (1) and the anti-theft ring (2), described overturning pivot (35) can be a bit of lid (1) lower edge, from a convex edge that lid (1) lower edge stretches out downwards or be connected in lid (1) lower edge and anti-theft ring (2) upper limb between the frenulum of compactness, traction action by means of traction belt (34), lid after the unlatching (1) downwards elasticity open and upwards elasticity close up, lid (1) when opening its oral area roughly up, the axial location of described overturning pivot (35) exceeds the position of both sides traction belt (34).

8. according to each described articulated anti-theft bottle cap in the claim 1 to 7, it is characterized in that: the latch (21) that on anti-theft ring (2) internal diameter, is useful on the locking bottleneck away from the site distribution of hinge (3), position near hinge (3) does not then have the axial location of latch or latch relatively low, makes that this position can be by upwards pulling of hinge (3) in bottle lid opening process.

9. according to each described articulated anti-theft bottle cap in the claim 1 to 7, it is characterized in that: described hinge (3) is a combined hinge, the banded structure (39) of two symmetries of joining in the middle of having circumferentially extends along the bottle cap sidewall respectively, to increase the movable amplitude of hinge (3), particularly increase the movable amplitude of above-below direction.

10. according to each described articulated anti-theft bottle cap in the claim 1 to 6, it is characterized in that: the part of described hinge (3) or hinge is the shape that arches upward, or lid (1) open and traling after be the shape that arches upward, can insert for finger and guide and support.