CN100999267A

CN100999267A - Plastic packaging box having self-locking function

Info

Publication number: CN100999267A
Application number: CN 200710019509
Authority: CN
Inventors: 陆庭兴
Original assignee: WUXI JULONG PLASTIFY CO Ltd
Current assignee: WUXI JULONG PLASTIFY CO Ltd
Priority date: 2007-01-01
Filing date: 2007-01-01
Publication date: 2007-07-18
Anticipated expiration: 2027-01-01
Also published as: CN100542903C

Abstract

The present invention relates to a plastic packaging box with self-locking function. It is characterized by that said packaging box includes box body and box cover, between the described box body and box cover a self-locking packaging structure is set, and said self-locking packaging structure includes lock catch and tapered end. Said invention also provides the concrete structure of lock catch and tapered end, and provides its concrete operation method.

Description

Plastic packaging box with auto-lock function

(1) technical field: the present invention relates to packing chest, relate in particular to be used for the keeping plastic packaging box treasure, that have auto-lock function and meet safety requirements.

(2) background technology: the background technology that is close most with the present invention is the encapsulation keeping of mint for currency.In the prior art, the mint encapsulates currency with wooden case after currency is printed, and fixes case lid with nail, adds the lead sealing button., in keeping and transportation, be easy under the situation of not destroying the lead sealing button, be pried open with the currency of wooden case encapsulation with leaving no trace, steal currency wherein, or else nail on mark by stealer.When this encapsulation wooden case is used to encapsulate currency or treasure, do not meet safety requirements.

(3) summary of the invention: when adding that with wooden case encapsulation is buckled in lead sealing at existing currency or treasure, do not meet safety requirements, be easy to stolen problem, the applicant provides a kind of plastic packaging box that can be used for keeping currency or treasure, has auto-lock function and meet safety requirements through studying repeatedly and testing.

Technical scheme of the present invention is as follows:

Plastic packaging box with auto-lock function comprises casing and case lid, has the self-locking encapsulating structure that snap close fastens tapered end between described casing and the case lid.Fasten the position of the self-locking encapsulating structure of tapered end corresponding to described snap close, on the case lid capping, have the unpacking groove of depression.Described snap close fastens the both sides of the encapsulating structure of tapered end, has the thin-wall tearing groove in the case lid edge.

The present invention designs between casing and case lid has snap close to fasten the encapsulating structure of tapered end, and after both fastened, case lid was lock onto on the casing by self-locking firmly, and the burglar is difficult to pry open easily package.And having the thin-wall tearing groove in the edge of packing chest case lid in the both sides of above-mentioned encapsulating structure, it is impossible especially that the burglar pries open self-locking structure with wanting to leave no trace, because will inevitably prize bad thin-wall tearing groove, stays stealing vestige or crime weak point.As seen from above-mentioned, the present invention makes it have good safety and reliability owing to have good self-locking and preventing function, can be widely used in keeping currency or treasure.

(4) description of drawings:

Fig. 1 is case lid in-to-in three-dimensional view among the present invention;

Fig. 2 is the enlarged drawing of A portion among Fig. 1;

Fig. 3 is the section-drawing of B-B portion among Fig. 2;

Fig. 4 is the three-dimensional view of casing among the present invention;

Fig. 5 is the enlarged drawing of C portion among Fig. 4;

Fig. 6 is in the three-dimensional view of encapsulation state for the present invention;

Fig. 7 is the cutaway view Amplified image of D-D portion encapsulating structure among Fig. 6, as embodiments of the invention 1;

Fig. 8 is the cutaway view of the encapsulating structure of the embodiment of the invention 2;

Fig. 9 is the cutaway view of the encapsulating structure of the embodiment of the invention 3;

Figure 10 is the E-E portion cutaway view Amplified image of Fig. 9;

Figure 11 is the cutaway view of the encapsulating structure of the embodiment of the invention 4.

(4) specific embodiment: below in conjunction with the description of drawings embodiments of the invention.

Embodiment 1:

See Fig. 6, the present invention includes casing 10 and case lid 1, encapsulation between casing 10 and the case lid 1 relies on snap close to fasten the encapsulating structure of tapered end, this structure is described as follows: see Fig. 4 and Fig. 5, wherein snap close is out in the upper strata at casing edge 6 bonnet lock hole 8 and opens lower floor's bonnet lock hole 9 on casing horizontal stiffener 7; See Fig. 1, tapered end 3 usefulness injection moulding process are connected on the case lid 1, see Fig. 2, tapered end 3 has upper strata tapered end 4 and lower floor's tapered end 5, see Fig. 6 and Fig. 7, when plastic packaging box covered, upper strata tapered end 4 fastened with lower floor's bonnet lock hole 9, lower floor's tapered end 5 fastens with upper strata bonnet lock hole 8, forms the encapsulating structure that double-deck snap close fastens tapered end.Casing 10 and case lid 1 are all used elastic slightly plastic production, and for example vinyon so makes bonnet lock hole also have elasticity.See Fig. 7, fasten the encapsulating structure of tapered end for same set of described snap close, for example upper strata tapered end 4 and lower floor's bonnet lock hole 9, and lower floor's tapered end 5 and upper strata bonnet lock hole 8, tapered end 4 is bigger tens than the size of bonnet lock hole 9 on a coordinate direction at least, and tapered end 5 is bigger tens than the size of bonnet lock hole 8, bigger than snap close hole size among Fig. 7 for Building X mark direction tapered end, and the sidewall of tapered end has the conical surface, so makes tapered end can pass elastic bonnet lock hole, forms the self-locking type fastening structure.In addition, the size of tapered end shown in Fig. 74 and bonnet lock hole 9 so makes easier fastening of double-deck snap close and self-locking respectively less than the size of tapered end 5 and bonnet lock hole 8.

Among Fig. 6,12 for opening the through hole between case lid 1 and casing 10, and the structure of this through hole also can be referring to Fig. 1 and Fig. 4, and it is packaged afterwards by prior art leading closure to be used for package, further sealing.

Among Fig. 6 and Fig. 7, fasten the position of the encapsulating structure of tapered end, on the capping of case lid 1, have the unpacking groove 11 of depression corresponding to described snap close.When so being convenient to discern the position of encapsulating structure and opening package with drift with tapered end 3 from case lid 1 punching separation.

See Fig. 1, Fig. 2 and Fig. 6, fasten the both sides of the encapsulating structure of tapered end 3 at snap close, have thin-wall tearing groove 2 in the edge of case lid inboard, its cross section view as shown in Figure 3.Normally do not opening under the situation of packages by above-mentioned unpacking groove 11, attempt is illegally pried open snap close tapered end encapsulating structure and is opened package, the thin-wall tearing groove is torn, thereby prevents the stealthy stealer of article in some attempt stealing packages.

See Fig. 1, Fig. 4 and Fig. 6, periphery of the present invention is provided with the encapsulating structure of the described snap close fastening of many covers tapered end and unpack accordingly groove 11, tearing groove 2, and it is provided with quantity and is chosen by the size of package.

Embodiment 2:

See Fig. 8, it fastens the encapsulating structure of tapered end for another kind of snap close: snap close is out in the individual layer bonnet lock hole 13 at casing 10 edges, the downside of bonnet lock hole 13 has the baffle plate 15 that is connected in casing 10, tapered end 14 is connected on the case lid 1, be injected into one with case lid 1, tapered end 14 fastens with bonnet lock hole 13, and baffle plate 5 withstands the end of tapered end 14, prevents that stealer from opening tapered end from the bottom.When beating package, at first the knock-off baffle plate 15, then from the groove 11 knock-off tapered ends 14 of unpacking.Remaining the explanation with embodiment 1 mutually roughly the same.

Embodiment 3:

See Fig. 9 and Figure 10, snap close 16 for case lid be injected into one elastic multi-petal shape shape grab button, Figure 10 illustrates it and comprises 4 lobe bodies 17.See Fig. 9, have the hole on the edge of casing 10 and the reinforced rib, when plastic packaging box covered, snap close 16 passed the perforate at casing edge.In the perforate on reinforced rib, the flush fit tapered end 18 of packing into, the lobe body 17 of grabbing button 16 fastens the termination of tapered ends 18, and the stupefied of projection arranged on the sidewall of tapered end 18, makes fastening more firm.Remaining the explanation with embodiment 1 mutually roughly the same.

Embodiment 4:

See Figure 11, snap close is an independent snap ring 22, and the elastic sheetmetal of snap ring 22 usefulness is made; Tapered end 21 injection mouldings are in case lid 1, connect as one, the end of tapered end 21 has draw-in groove, when packing chest is in when covering state, tapered end 21 passes perforate 19 on casing 10 edges and the perforate 20 on the casing reinforced rib, with snap ring 22 oppositely extruding be fastened in the draw-in groove of tapered end 21 ends, forms the encapsulating structure that firm snap close fastens tapered end, remaining illustrate with embodiment 1 mutually roughly the same.

The foregoing description 1 is to example 4, and the injection moulding of plastics is with its common process method.

Claims

1, the plastic packaging box that has auto-lock function comprises casing and case lid, is characterised in that to have the self-locking encapsulating structure that snap close fastens tapered end between described casing and the case lid.

2, by the described plastic packaging box of claim 1 with auto-lock function, be characterised in that described snap close is out in the upper strata at casing edge bonnet lock hole and lower floor's bonnet lock hole, described tapered end is connected on the case lid, and have upper strata tapered end and a lower floor's tapered end, described lower floor bonnet lock hole fastens the upper strata tapered end, and the upper strata bonnet lock hole fastens lower floor's tapered end; Fasten the encapsulating structure of tapered end for same set of described snap close, at least on a coordinate direction size of tapered end greater than the snap close hole size.

3, by the described plastic packaging box of claim 1 with auto-lock function, be characterised in that described snap close is out that in the bonnet lock hole at casing edge, the downside of bonnet lock hole has the baffle plate that is connected in casing, described tapered end is connected on the case lid, described bonnet lock hole fastens tapered end, and described baffle plate is kept out the end of tapered end; At least on a coordinate direction size of tapered end greater than the bonnet lock hole size.

4, by the described plastic packaging box with auto-lock function of claim 1, be characterised in that described snap close for to grab button with case lid bonded assembly lobe shape, described tapered end is connected on the casing, and described lobe shape is grabbed button and fastened tapered end.

5, by the described plastic packaging box of claim 1 with auto-lock function, be characterised in that described snap close is a snap ring, described tapered end is connected on the case lid, has draw-in groove on the tapered end, and described snap ring is fastened in the draw-in groove on the tapered end.

6, by the described plastic packaging box of claim 1 with auto-lock function, be characterised in that the position that fastens the encapsulating structure of tapered end corresponding to described snap close, on the case lid capping, have the unpacking groove of depression.

7,, be characterised in that the both sides of the encapsulating structure of described snap close fastening tapered end have the thin-wall tearing groove in the case lid edge by the described plastic packaging box of claim 1 with auto-lock function.