CN208053816U - A kind of antitheft packaging container of metal - Google Patents

Abstract

The utility model discloses a kind of antitheft packaging container of metals, including vessel and turn on lid, the lower part for turning on lid tegmental wall is equipped with anti-theft ring, the lower surface of caping is equipped with gasket, the peripheral part of the gasket is integrally extended with downwards the inner seal ring abutted for the opening's edge portion inner wall with vessel port and the outer seal ring abutted with vessel port outer wall, the seal groove that Open Side Down is constituted between inner seal ring and outer seal ring, the lateral surface lower part of inner seal ring is convexly equipped with interference ring, it is formed with up-small and down-big cyclic annular tapered wall on the tegmental wall of caping, the epimere of the tapered wall is close to outer seal ring and constitutes outer seal ring press section, the lower part of tapered wall is circumferentially with multiple internal pressure liberation ports being inwardly punched along tapered wall.The antitheft packaging container of metal of the utility model has simple in structure, and anti-theft sealing is good and easy to open, with very high practical value.

Description

A kind of antitheft packaging container of metal

Technical field

The utility model is related to packaging container of metal technical fields, and in particular to a kind of antitheft packaging container of metal.

Background technology

In general, the made of metal packaging container lid on packaging container of metal oral area has following structure：Have caping and Caping lateral margin and the synthetic resin gasket being bonded on the inside of caping；There is anti-theft ring to connect with lateral margin by building bridge on the downside of lateral margin It connects；By in caping application certain pressure, making gasket and having certain decrement in packaging container of metal oral area contact site, Screw thread, anti-theft ring and packaging container of metal oral area are molded by the screw thread profiling on lid lateral margin and packaging container of metal oral area to roll up Edge sealing is held, and ensures that lid can be mounted on packaging container of metal oral area well and realize sealing.When unlatching, a hand holds appearance Device, another hand, which pinches container cover and rotated towards thread looseness direction, to be moved up, due to being limited in container mouth neck portion after anti-theft ring seaming It can not move up, so the bridge formation of connection lateral margin and anti-theft ring is twisted off, lid removal；Here it is the anti-theft performances of anti-theft ring, uncap Cycle is gone again afterwards, and fracture of building bridge can not restore, and ensures that consumer can distinguish whether beverage of purchase etc. be previously opened or Damage.But have such situation in real process and occur, since container finish is molded it is not possible that completely the same, anti-theft ring The bulge loop of container can not be especially bonded when seaming, cause to turn on cover open when can first turn an angle, anti-theft ring with turn on Lid one at first up move a small end distance after, anti-theft ring can just be blocked by bulge loop, be rotated further turn on cover its bridge formation just start Fracture.For canister, container mouth neck portion can only be molded into circular arc for limiting its cross section of bulge loop that anti-theft ring moves up Shape structure, therefore can not be fitted closely with it when anti-theft ring seaming, generally can first it turn an angle when turning on lid and opening, this Sample there is a security risk, i.e., when turning on lid rotation in some cases, the compression of gasket before bridge formation is not broken also Amount released, at this time leakproofness destroyed but turn on lid well-tended appearance it is lossless, thus lose the antitheft work(for turning on lid It can or unconsciously make product rotten, serious prestige may be caused to influence on production enterprise in this way.Publication date It is on 2 11st, 2015, the Chinese patent document of Publication No. CN204150384U discloses a kind of sealed, burglarproof bottle cap, including Anti-theft ring with female body of the bottle lid, with body of the bottle lid integrated injection molding, anti-theft ring are set to body of the bottle lid bottom end, bottle It is equipped with ring cutting gap between lid ontology and anti-theft ring, the connection of several connection body of the bottle lid and anti-theft ring is evenly equipped on ring cutting gap Bridge further includes being buckled with the pad position of body of the bottle lid and anti-theft ring integrated injection molding and the antitheft shirt rim of annular, pad position button are circumferential uniform Space protrusion is set at the top of body of the bottle lid madial wall, and the top and lower part of pad position button are equipped with inclined surface, and pad the top of position button It is fixedly connected on the head cover inner wall of body of the bottle lid；The antitheft shirt rim of annular is connected to the madial wall bottom end of anti-theft ring, ring turnablely Integrated injection molding has the opening U slots of several equal circular arcs spacing distributions on the antitheft shirt rim of shape.The sealed, burglarproof bottle cap be easy to by Gasket is assembled into bottle cap securely, has good sealing performance, puncture energy and anti-theft performance, and injection molding Afterwards, it is easy demoulding.But the sealed, burglarproof bottle cap is only applicable to plastic material, is not suitable for canister.

Utility model content

The purpose of this utility model be for solve the prior art packaging container of metal be susceptible to anti-theft feature missing or Person provides a kind of antitheft gold the problem of so that product is gone bad, causing serious prestige to influence production enterprise Belong to packing container, there is simple in structure, the good and easy to open feature of anti-theft sealing.

The concrete scheme that the utility model uses to solve above-mentioned technical problem is a kind of antitheft packaging container of metal, packet It includes vessel and turns on lid, cylindrical container mouth is formed on the packaging container of metal, is formed on the outer wall of vessel port External screw thread, the lid of turning on include caping and extend downwardly the tegmental wall constituted by the outer rim of the caping, be equipped with and institute in the middle part of tegmental wall The internal thread of external screw thread adaptation is stated, the lower part of tegmental wall is equipped with anti-theft ring, and the lower surface of the caping is equipped with gasket, the sealing The peripheral part of pad be integrally extended with downwards the inner seal ring abutted for the opening's edge portion inner wall with vessel port and with vessel port outer wall The outer seal ring of abutting constitutes the seal groove that Open Side Down between inner seal ring and outer seal ring（On the lateral surface of inner seal ring Portion constitutes the madial wall of seal groove, and the medial surface of outer seal ring constitutes the lateral wall of seal groove）, the lateral surface lower part of inner seal ring It is convexly equipped with interference ring, up-small and down-big cyclic annular tapered wall is formed on the tegmental wall of caping, the apex angle of tapered wall is 25 to 48 Degree, the epimere of the tapered wall are close to outer seal ring and constitute outer seal ring press section, and the lower part of tapered wall is along tapered wall circumferential direction Equipped with multiple internal pressure liberation ports being inwardly punched.

The antitheft packaging container of metal of the utility model includes container and what is be adapted to container turn on lid, and container is equipped with circle Cylindrical container mouth is formed with external screw thread on the outer wall of vessel port, turns on the interior spiral shell for covering and being equipped in the middle part of tegmental wall and being adapted to external screw thread Line, sealing of the internal and external screw thread cooperation for container.And it turns on the vessel port auxiliary section covered in the periphery of gasket and is equipped with inside and outside two A sealing ring constitutes the seal groove for being inserted in container finish between two sealing rings, in this way when the oral area of container enters sealing After slot, the medial surface of outer seal ring（That is the outside cell wall of seal groove）The outer wall for being close to vessel port forms external seal, inner seal ring Lateral surface（That is the inside cell wall of seal groove）The inner wall for being close to vessel port forms interior sealing, and the slot bottom of seal groove is close to container Opening's edge seals on constituting, in this way, turn on lid has just carried out good sealing to container；And when turning on lid rotation unlatching, due to It is limited in the downside of vessel port snap ring after anti-theft ring seaming, therefore can not be moved up by the blocking of snap ring, needs firmly to turn It moves to twist off the bridge formation between tegmental wall and anti-theft ring, the shape for turning on lid so is just destroyed, therefore can be identified easily, is played Good anti-theft function.In addition the utility model is equipped with interference ring in the lateral surface lower part of inner seal ring, and interference ring is one The raised zonary structure on the lateral surface of inner seal ring, interference ring is when the lateral surface of inner seal ring is close to the inner wall of vessel port It can play the role of strengthening sealing.

The utility model is formed with up-small and down-big cyclic annular tapered wall on the tegmental wall close to caping, that is, turns on the epimere of lid Cross section for up-small and down-big structure, the section lid wall is oblique, and squeezing outer seal ring by tapered wall constitutes press section so that Its medial surface is close to vessel port after the outer seal ring portion of being squeezed squeezes, and this assures outer seal rings to the close of vessel port Envelope, solves in traditional handicraft through caping and unilateral side（Inside）Sealing ring compresses asking for the form poor sealing performance of vessel port Topic simultaneously because the press section of the utility model is up-small and down-big pyramidal structure, therefore is turned on to turn on to cover when lid is opened and is easy Deviate from from vessel port, avoids in traditional handicraft through caping and bilateral（Medial and lateral）Sealing ring compresses the form of vessel port Difficult problem is opened since the frictional force that bilateral generates causes to turn on to cover compared with conference when opening, under the premise of ensuring sealing Facilitate the unlatching for turning on lid.Apex angle is the angle between the tapered wall of caping both sides, and apex angle is too small, and outer seal ring is to vessel port Lateral compression power is excessive, and the opening force for turning on lid being easy to cause is excessive；Apex angle is excessive, then pressure of the outer seal ring to vessel port It is too small, it is easy although opening, sealing performance is poor.Internal pressure liberation port is used for the gas in container when container inner pressure is excessive Body or liquid discharge in time, avoid container inner pressure is excessive from leading to turn on lid and directly fly out and cause serious consequence.

Preferably, the opening's edge portion of vessel port is made of four layers of metal material convolution, the top in the opening's edge portion is in circular arc Shape, the slot bottom of the seal groove are adapted with the top shape in the opening's edge portion.The opening's edge portion of the utility model vessel port is by four Layer metal material convolution is constituted, and the similar ellipse in cross section, opening's edge is arc-shaped at the top of portion, is conducive to be packed into and is turned on lid Seal groove, and the slot bottom of seal groove is adapted with the top shape in the opening's edge portion, i.e., the slot bottom cross section of seal groove is also in circle Arc is conducive to the sealing performance for improving container.

Preferably, the outer wall lower part of vessel port is convexly equipped with the snap ring moved up for limiting anti-theft ring, the upside of anti-theft ring Along the notch for being circumferentially with several strips of tegmental wall, the notch runs through the tegmental wall, the tegmental wall between adjacent cut Constitute build bridge, the distance between interference ring and seal groove slot bottom be more than turn on lid open build bridge be broken when caping axial movement away from From.Due to the distance between interference ring and seal groove slot bottom be more than turn on lid open build bridge fracture when caping axial movement away from From, i.e., turning on lid rotation open initial stage, when turn on lid move in the axial direction a certain distance but build bridge it is unbroken when, interference Ring is close to the inner wall of vessel port always, it is ensured that the sealing built bridge between unbroken preceding inner seal ring and the inner wall of vessel port, in this way The appearance that the leakproofness that container can be avoided the occurrence of has been destroyed and turned on lid stands intact, the anti-theft feature of container is made to lack Less or the problem of unconsciously making product rotten, to cause serious prestige to influence production enterprise.

Preferably, the cross-sectional height of inner seal ring be more than outer seal ring cross-sectional height, inner seal ring it is transversal Face width is more than the cross-sectional width of outer seal ring, medial surface and the gasket lower surface of inner seal ring（I.e. close to inner seal ring Locate the gasket bottom surface not extended downwardly）Between by resistance to compression cambered surface transition connect, the radius of the resistance to compression cambered surface is interior sealing Ring cross-sectional height（That is the distance between inner seal ring lower end and gasket lower surface）0.75 to 1.25 times.In inner seal ring Medial surface and gasket lower surface between setting resistance to compression cambered surface can significantly improve the anti-pressure ability of inner seal ring, strengthen interference Sealing function of the ring to vessel port inner wall.

Preferably, the relief groove extended along seal groove, institute are equipped on the slot bottom of seal groove close to the side of inner seal ring The opening width for stating relief groove is the 10% to 24% of seal groove slot bottom width, and the depth of relief groove is seal groove slot bottom width 12% to 25%.The effect of relief groove is the appropriate resistance for reducing inner seal ring and entering vessel port, is avoided due to interference ring and resistance to compression Resistance is excessive when the presence of cambered surface causes leakproof to turn on lid covered container mouth, the opening's edge portion excessive compression gasket of container and in mistake It is full of at ring and causes gauffer, serious damage is caused to the sealing performance of container.Although leakproof can also be reduced by reducing resistance to compression cambered surface Resistance when lid covered container mouth is turned on, but is affected to the sealing performance of interference ring, and relief groove is arranged can will be this Influence is reduced to a minimum, while avoiding gauffer occur at interference ring again, is ideal technical solution；On the other hand, it depressurizes The cross section size of slot has larger impact to sealing performance, and relief groove is excessive, not only influences sealing of the vessel port along portion top, and And it can also reduce the sealing performance of interference ring, it is therefore desirable to which control is in a reasonable range.

Preferably, the center line of relief groove cross section and the center line of seal groove cross section are mutually parallel, relief groove Inside cell wall is with the inside cell wall at seal groove slot bottom on same cylindrical surface（That is the inside cell wall of relief groove is close by seal groove Inside cell wall at slot bottom, which extends, to be constituted）.

Preferably, the lateral surface lower end of inner seal ring, which is equipped with, is oriented to arc-shaped side, the upper edge and mistake for being oriented to arc-shaped side Be full of ring lower edge connection.It is oriented to arc-shaped side and plays guiding role when turning on lid and coordinating with vessel port.

Preferably, the lower part of tegmental wall is equipped with two bulge loops, annular groove is constituted between two bulge loops, notch and adjacent cut Bridge formation between mouthful is arranged at the slot bottom of annular groove.Bridge formation between notch and adjacent cut is arranged in annular groove At slot bottom, in this way rotation when turning on lid notch and building bridge be in recess without with palm contacts, after avoiding building bridge and being broken Spine injure palm.

Be equipped with cutting preferably, building bridge, the cutting is dovetail groove, the cutting along the circumferentially disposed of tegmental wall, The width of rebate of cutting is less than the width of the notch, and the cutting on the bridge formation is two, each on the outer wall and inner wall of bridge formation One cutting is set, two cuttings build bridge it is upper shift to install up and down, the depth of the cutting be the tegmental wall thickness 25% to 35%, the width of rebate of cutting is 1.0 to 1.5 times of the depth of cutting.Cutting is to remove a part of tegmental wall material using cutting way What material was formed, different from by indent structures of formation such as extruding, the presence of cutting is on the one hand so that the wall thickness built bridge locally change Thin and structural strength reduces, and on the other hand unscrews the stress concentration at lid start-up time slot, therefore can greatly reduce turn-break type The opening force for unscrewing lid, facilitates the purpose of unlatching.

The utility model has the beneficial effects that it efficiently solve the prior art packaging container of metal be susceptible to it is anti- Steal afunction or unconsciously make product is rotten, cause serious prestige to influence production enterprise the problem of, this The antitheft packaging container of metal of utility model has simple in structure, the good and easy to open feature of anti-theft sealing, has very high Practical value.

Description of the drawings

Fig. 1 is a kind of structure sectional view that the utility model turns on lid；

Fig. 2 is a kind of overall structure diagram of the utility model；

Fig. 3 is a kind of lateral partial structurtes sectional view that the utility model turns on lid；

Fig. 4 is the utility model vessel port and turns on a kind of lateral partial structurtes sectional view of lid mated condition；

Fig. 5 is the utility model vessel port and turns on another lateral partial structurtes sectional view of lid mated condition；

Fig. 6 is a kind of lateral partial structurtes sectional view at the utility model bridge formation.

In figure：1. vessel port, 2. caping, 3. tegmental walls, 4. anti-theft rings, 5. snap rings, 6. notch, 7. build bridge, 8. gaskets, 9. opening's edge portion, 10. inner seal rings, 11. outer seal rings, 12. seal grooves, 13. interference rings, 14. tapered walls, 15. press sections, 16. Resistance to compression cambered surface, 17. relief grooves, 18. guiding arc-shaped sides, 19. internal pressure liberation ports, 20. bulge loops, 21. annular grooves, 22. cuttings, 23. vessel.

Specific implementation mode

The embodiment of the utility model is further detailed below by way of examples and with reference to the accompanying drawings.

Embodiment 1

In Fig. 1 embodiments 1 shown in Fig. 2, a kind of antitheft packaging container of metal, including vessel 23 and lid is turned on, Cylindrical container mouth 1 is formed on the packaging container of metal, and external screw thread is formed on the outer wall of vessel port, it is described to turn on lid packet It includes caping 2 and extends downwardly the tegmental wall 3 constituted by the outer rim of the caping, the interior spiral shell being adapted to the external screw thread is equipped in the middle part of tegmental wall The lower part of line, tegmental wall is equipped with anti-theft ring 4, and the outer wall lower part of vessel port is convexly equipped with the snap ring 5 moved up for limiting anti-theft ring, antitheft The upside of ring along tegmental wall the notch 6 for being circumferentially with several strips, the notch run through the tegmental wall, adjacent cut it Between tegmental wall constitute build bridge 7；The lower part of the present embodiment tegmental wall is equipped with two bulge loops 20, and annular groove is constituted between two bulge loops 21, the bridge formation between notch and adjacent cut is arranged at the slot bottom of annular groove（See Fig. 2）.The lower surface of the caping is equipped with Gasket 8, the peripheral part of the gasket are integrally extended with downwards the interior sealing abutted for 9 inner wall of opening's edge portion with vessel port The cross-sectional height of ring 10 and the outer seal ring 11 abutted with vessel port outer wall, inner seal ring is more than the cross section height of outer seal ring Degree, the cross-sectional width of inner seal ring are more than the cross-sectional width of outer seal ring, medial surface and the gasket following table of inner seal ring Face（The gasket baseplane not extended downwardly at inner seal ring）Between connected by 16 transition of resistance to compression cambered surface, it is described anti- It is inner seal ring cross-sectional height to press the radius of cambered surface（That is the distance between inner seal ring lower end and gasket lower surface）'s 0.75 times.The seal groove 12 that Open Side Down is constituted between inner seal ring and outer seal ring（The lateral surface top of inner seal ring is constituted The madial wall of seal groove, the medial surface of outer seal ring constitute the lateral wall of seal groove）, close to inner seal ring on the slot bottom of seal groove Side be equipped with the relief groove 17 that extends along seal groove（See Fig. 3）, the opening width of the relief groove is seal groove slot bottom width 10%, the depth of relief groove is the 12% of seal groove slot bottom width.The center line and seal groove of the relief groove cross section are transversal The center line in face is mutually parallel, and the inside cell wall of relief groove and the inside cell wall at seal groove slot bottom are on same cylindrical surface（I.e. The inside cell wall of relief groove is made of inside cell wall extension of the seal groove at slot bottom）.The lateral surface lower part of inner seal ring is convex Equipped with interference ring 13（Fig. 3 dotted line left parts are seen, with gasket one）, the lateral surface lower end of the inner seal ring below interference ring Equipped with arc-shaped side 18 is oriented to, the upper edge for being oriented to arc-shaped side is connect with the lower edge of interference ring.The opening's edge of the present embodiment vessel port Portion is made of four layers of metal material convolution, is arc-shaped at the top of the opening's edge portion, the slot bottom of the seal groove and the opening's edge The top shape in portion is adapted.When turning on lid covered container mouth, the medial surface of the outer seal ring is close to the outer wall in opening's edge portion, interior The lateral surface of sealing ring is close to the inner wall in opening's edge portion, and the slot bottom of seal groove is close to the top in opening's edge portion, interference ring and seal groove slot The distance between bottom, which is more than, turns on the axial movement distance that lid opens caping when building bridge fracture.

Up-small and down-big cyclic annular tapered wall 14 is formed on the tegmental wall of caping, the apex angle of tapered wall is 25 degree, taper The lower part of wall is circumferentially with multiple internal pressure liberation ports 19 being inwardly punched along tapered wall, and the epimere of the tapered wall is close to outer close Seal ring constitutes outer seal ring press section 15, and when the antitheft packaging container of metal covered container mouth, the outer seal ring is to container The pressure of mouth outer wall is more than pressure of the inner seal ring to vessel port inner wall.

Embodiment 2

The bridge formation of 2 antitheft packaging container of metal of embodiment is equipped with cutting 22（See Fig. 6）, the cutting is dovetail groove, institute Along the circumferentially disposed of tegmental wall, the width of rebate of cutting is less than the width of the notch for the cutting stated, and the cutting on the bridge formation is Two, a cutting is respectively set on the outer wall and inner wall of bridge formation, two cuttings build bridge it is upper shifts to install up and down, the cutting Depth is the 30% of the tegmental wall thickness, and the width of rebate of cutting is 1.2 times of the depth of cutting, and the present embodiment relief groove is opened Mouth width degree is the 24% of seal groove slot bottom width, and the depth of relief groove is the 25% of seal groove slot bottom width, the radius of resistance to compression cambered surface It is 1.25 times of inner seal ring cross-sectional height, the apex angle of tapered wall is 48 degree, remaining and embodiment 1 are identical.

The antitheft packaging container of metal of the utility model turns on the antitheft packaging container of metal mouth covered in gasket periphery It is equipped with inside and outside two sealing rings at cooperation, is constituted between two sealing rings for being inserted in the close of antitheft packaging container of metal opening's edge portion Sealing groove, in this way after the opening's edge portion of antitheft packaging container of metal enters seal groove, the medial surface of outer seal ring is close to opening's edge portion Outer wall forms external seal, and the lateral surface of inner seal ring is close to the inner wall formation interior sealing in opening's edge portion, and the slot bottom of seal groove is close to The top in opening's edge portion seals on constituting（See Fig. 4, the compression section of gasket when the lap in figure is practical cooperation）, this Sample turns on lid and has just carried out good sealing to antitheft packaging container of metal；And when turning on lid rotation unlatching, due to anti-theft ring It is limited in the downside of vessel port snap ring after seaming, therefore can not be moved up by the blocking of snap ring, needs firmly to rotate to turn round Disconnected bridge formation between tegmental wall and anti-theft ring, the shape for turning on lid so is just destroyed, therefore can be identified easily, is played very well Anti-theft function.The utility model is convexly equipped with interference ring in the lateral surface lower part of inner seal ring simultaneously, and interference ring is including one Raised zonary structure on the lateral surface of sealing ring, interference ring can be with when the lateral surface of inner seal ring is close to the inner wall of vessel port Play the role of strengthening and seal, is covered since the distance between interference ring and seal groove slot bottom are more than to turn on when lid unlatching is built bridge and is broken The axial movement distance on top moves a certain distance but frame in the axial direction that is, at the initial stage for turning on lid rotation unlatching when turning on lid When bridge is unbroken, interference ring is close to the inner wall of vessel port always（See the state that Fig. 5, Fig. 5 are shown for the critical shape of leakage of container State）, it is ensured that the sealing built bridge between unbroken preceding inner seal ring and the inner wall of vessel port can thus avoid the occurrence of container The appearance that leakproofness has been destroyed and turned on lid stands intact, the anti-theft feature of container is made to lack or unconsciously make The problem of product is rotten, to cause serious prestige to influence production enterprise.

In addition to the implementation, in the range disclosed in claims of the utility model and specification, this practicality Novel technical characteristic or technical data can be reselected and be combined, and to constitute new embodiment, these are all these Field technology personnel are without carrying out what creative work can be realized, therefore the implementation that these the utility model are not described in Example also should be regarded as specific embodiment of the utility model and be within the protection scope of the utility model.

Claims (9)

1. a kind of antitheft packaging container of metal, including vessel and turn on lid, which is characterized in that on the packaging container of metal Form cylindrical container mouth（1）, external screw thread is formed on the outer wall of vessel port, the lid of turning on includes caping（2）And by this The outer rim of caping extends downwardly the tegmental wall of composition（3）, the internal thread being adapted to the external screw thread is equipped in the middle part of tegmental wall, under tegmental wall Portion is equipped with anti-theft ring（4）, the lower surface of the caping is equipped with gasket（8）, the peripheral part of the gasket integrally extends downwards It is useful for the opening's edge portion with vessel port（9）The inner seal ring that inner wall abuts（10）And the outer seal ring abutted with vessel port outer wall （11）, the seal groove that Open Side Down is constituted between inner seal ring and outer seal ring（12）, the lateral surface lower part projection of inner seal ring There is interference ring（13）, up-small and down-big cyclic annular tapered wall is formed on the tegmental wall of caping（14）, the apex angle of tapered wall is 25 To 48 degree, the epimere of the tapered wall is close to outer seal ring and constitutes outer seal ring press section（15）, the lower part of tapered wall is along cone Shape wall is circumferentially with multiple internal pressure liberation ports being inwardly punched（19）.

2. antitheft packaging container of metal according to claim 1, which is characterized in that the opening's edge portion of the vessel port is by four layers Metal material convolution is constituted, and is arc-shaped at the top of the opening's edge portion, the top of the slot bottom of the seal groove and the opening's edge portion Shape is adapted.

3. antitheft packaging container of metal according to claim 1, which is characterized in that the outer wall lower part projection of vessel port is useful In the snap ring that limitation anti-theft ring moves up（5）, the notch for being circumferentially with several strips of the upside of anti-theft ring along tegmental wall（6）, The notch runs through the tegmental wall, and the tegmental wall between adjacent cut, which is constituted, builds bridge（7）, between interference ring and seal groove slot bottom Distance, which is more than, turns on the axial movement distance that lid opens caping when building bridge fracture.

4. antitheft packaging container of metal according to claim 1, which is characterized in that the cross-sectional height of inner seal ring is more than The cross-sectional height of outer seal ring, the cross-sectional width of inner seal ring are more than the cross-sectional width of outer seal ring, inner seal ring Pass through resistance to compression cambered surface between medial surface and gasket lower surface（16）Transition connects, and the radius of the resistance to compression cambered surface is inner seal ring 0.75 to 1.25 times of cross-sectional height.

5. antitheft packaging container of metal according to claim 4, which is characterized in that close to interior sealing on the slot bottom of seal groove The side of ring is equipped with the relief groove extended along seal groove（17）, the opening width of the relief groove is seal groove slot bottom width 10% to 24%, the depth of relief groove is the 12% to 25% of seal groove slot bottom width.

6. antitheft packaging container of metal according to claim 5, which is characterized in that the center line of the relief groove cross section It is mutually parallel with the center line of seal groove cross section, the inside cell wall of relief groove is with the inside cell wall at seal groove slot bottom same On cylindrical surface.

7. antitheft packaging container of metal according to claim 1, which is characterized in that the lateral surface lower end of inner seal ring is equipped with It is oriented to arc-shaped side（18）, it is described be oriented to arc-shaped side upper edge connect with the lower edge of interference ring.

8. according to the antitheft packaging container of metal of claim 1-7 any one of them, which is characterized in that the lower part of tegmental wall is equipped with two Bulge loop（20）, annular groove is constituted between two bulge loops（21）, the bridge formation setting between notch and adjacent cut is annular recessed At the slot bottom of slot.

9. antitheft packaging container of metal according to claim 8, which is characterized in that the bridge formation is equipped with cutting（22）, The cutting is dovetail groove, and along the circumferentially disposed of tegmental wall, the width of rebate of cutting is less than the width of the notch for the cutting, Cutting on the bridge formation is two, and a cutting is respectively arranged on the outer wall and inner wall of bridge formation, and two cuttings are being built bridge above up and down It shifts to install, the depth of the cutting is the 25% to 35% of the tegmental wall thickness, and the width of rebate of cutting is the depth of cutting 1.0 to 1.5 times.