CN209739733U - Sealing device for bullet-proof container - Google Patents

Abstract

The utility model belongs to the technical field of the encapsulation of container oral area, concretely relates to shellproof stopper container sealing device. The utility model discloses an insert the closing cap of locating container mouth department, its characterized in that: the confession of closing cap is stretched into intraoral extension section outer wall department cover and is equipped with the sealed gum cover, the coaxial protruding of outer wall department of sealed gum cover is equipped with cyclic annular arch, and the coaxial of inner wall department circumference of container mouth is equipped with cyclic annular heavy groove around the recess, thereby cyclic annular protruding card goes into the spacing closing cap of cyclic annular heavy inslot and produces the ascending action of axial. The utility model discloses can avoid appearing the bullet stopper phenomenon when guaranteeing the effect to the external seal of container oral area.

Description

Sealing device for bullet-proof container

Technical Field

The utility model belongs to the technical field of the encapsulation of container oral area, concretely relates to shellproof stopper container sealing device.

Background

The technology of sealing the mouth of a container has been an important research topic in the wine industry. In the prior art, for example, white spirit is used, and a plunger type sealing cap is widely used for sealing the opening of a wine container. The plunger type sealing cover is characterized in that a cylindrical ceramic structure plug extends downwards from a cover to a mouth part, and a plastic or silica gel envelope is arranged at the contact part of the outside of the cylindrical structure plug and the mouth part, so that the plunger type sealing cover is used for sealing. The fatal weak points of plunger type closure sealing are: after the wine liquid is continuously evaporated in the bottle or the jar, the wine liquid can be condensed into liquid on the surface of the plastic or silica gel sleeve and then falls back into the container; the long-term circulation can cause the plasticizer or the rubber flavor to be brought into the wine body, thereby causing the wine body to be damaged and being not suitable for drinking again. In addition, the sealing structure only provided with a sealing cover or a sealing sleeve has the possibility of being re-packaged after the bottle is opened, and once the sealing structure is secondarily packaged, the sealing performance of the sealing structure is destroyed, so that the liquid in the bottle or the jar cannot be stored for a long time, and great trouble is brought to a user. Meanwhile, the matching of the plunger type sealing cover and the container opening or the bottle opening is that the optical axis is in inserting matching with the hole axis of the hole, when the sealing cover is plugged back to the bottle opening or the container opening after secondary or repeated use, because air enters the bottle or the jar, the air in the bottle or the jar can resist the downward pressing action of the sealing cover, even the sealing cover is extruded from the bottle opening or the container opening due to air pressure in the subsequent storage process, and the phenomenon of spring plugging occurs, which needs to be avoided to the utmost extent in the wine industry, particularly in the white spirit industry needing sealed preservation.

Disclosure of Invention

The utility model aims at overcoming the not enough of above-mentioned prior art, provide a succinct and practical shellproof stopper container sealing device of structure, can avoid appearing the bullet stopper phenomenon when guaranteeing the effect to the external seal of container oral area.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

The utility model provides a bullet-proof stopper container sealing device, includes the closing cap of inserting and locating container mouth department which characterized in that: the confession of closing cap is stretched into intraoral extension section outer wall department cover and is equipped with the sealed gum cover, the coaxial protruding of outer wall department of sealed gum cover is equipped with cyclic annular arch, and the coaxial of inner wall department circumference of container mouth is equipped with cyclic annular heavy groove around the recess, thereby cyclic annular protruding card goes into the spacing closing cap of cyclic annular heavy inslot and produces the ascending action of axial.

preferably, the shape of the sealing rubber sleeve is a straight cylinder; the outer wall of the extension section is coaxially and concavely provided with an annular clamping groove, the inner wall of the sealing rubber sleeve is correspondingly provided with a positioning bulge matched with the annular clamping groove in shape, and the positioning bulge and the annular clamping groove form positioning fit for limiting the axial action of the sealing rubber sleeve along the extension section.

Preferably, a set of positioning protrusions and a set of annular grooves which are matched with each other form a set of positioning units, and the positioning units are distributed in sequence along the axial direction of the sealing cover.

Preferably, the middle section and/or the upper section of the rod body of the extension section are coaxially and concavely provided with annular positioning grooves for integrally hooping the sealing rubber sleeve; the lower rod body of the extension section, which extends out of the sealing rubber sleeve, is matched with the cylinder diameter of the container opening, so that the outer wall of the lower rod body can be attached to the cylinder wall of the container opening in a sealing and pressing manner.

Preferably, the shape of the sealing cover is in a two-section stepped shaft shape, the small-diameter section of the sealing cover forms the extension section, and a spigot matching is formed between the shaft shoulder of the sealing cover and the top end opening edge of the container opening; the top end of the sealing rubber sleeve extends to the shaft shoulder of the sealing cover.

preferably, the device also comprises an inner cover coaxially arranged on the sealing cover, and the outer edge of the inner cover axially extends downwards along the side wall of the sealing cover so as to cover the sealing cover; a notch groove or a spigot is radially and inwardly concavely arranged on the outer wall of the container opening, after a downward forward extending section formed by downward forward extending of the inner cover extends to the container opening, an inward flanging or a positioning pin radially extends towards the notch groove or the spigot, so that a vertical limiting structure for limiting the vertical displacement motion of the lead generated by the inner cover is formed between the inward flanging or the positioning pin and the notch groove or the spigot; the inner cover is formed by splicing two groups of cover bodies in a split manner, the inner peripheral walls of the two groups of cover bodies are radially inwards convexly provided with inserted pins, the outer peripheral wall of the sealing cover matched with the cover bodies is correspondingly concavely provided with inserting holes, and the inserting direction of the inserted pins relative to the inserting holes and the mounting direction of the cover bodies are mutually in the same direction; the splicing edges of the two groups of cover bodies are both concavely provided with notches, and after the two groups of cover bodies are radially folded to form the inner cover, the notches on the two groups of cover bodies are mutually folded to form a pin hole with a vertical axis of lead; the device also comprises a locking rod which is used for inserting into the pin hole from top to bottom along the vertical direction of the lead, so that a tenon-and-mortise matched structure which limits the two groups of covers to be separated radially is formed between the locking rod and the pin hole.

Preferably, the combined edge of the top end face of the sealing cover and the peripheral wall of the sealing cover is provided with an outer chamfer, and the combined edge of the top wall of the cavity of the inner cover and the side wall of the cavity of the inner cover is provided with an inner chamfer matched with the outer chamfer, so that when the two groups of cover bodies are radially opposite, the inner chamfer and the outer chamfer are radially extruded with each other, and the cover bodies are forced to perform vertical pressing action of lead.

Preferably, the device comprises an outer cover which is in a two-section stepped shaft shape with a thick upper part and a thin lower part, wherein a shaft shoulder spigot of the outer cover is matched with the top surface of the inner cover, and the small-diameter section of the outer cover forms the locking rod; in the view angle of the vertical direction, the shape of the pin hole is in a waist-shaped hole shape or a square hole shape, two straight edges of the pin hole are formed by splicing two groove edges of the notch, and the radial section of the locking rod is in the waist-shaped hole shape or the square hole shape consistent with the shape of the pin hole so as to be matched with the pin hole in an inosculating manner; the anti-theft bayonet lock is formed by convexly arranging and obliquely and upwardly extending planes of two straight edges of the locking rod, and forms an acute included angle with the planes of the two straight edges of the locking rod, and at the moment, two groups of anti-theft bayonet locks are arranged around the axis of the locking rod in an axisymmetric manner; an accommodating groove for the anti-theft bayonet lock to retract in the radial direction is concavely arranged on the outer wall of the locking rod; when the locking rod is inserted into the pin hole and the shaft shoulder seam allowance of the outer cover is matched with the top surface of the inner cover, the anti-theft bayonet lock is ejected along the radial direction and forms seam allowance matching between the anti-theft bayonet lock and the top wall of the cavity of the inner cover to limit the outer cover to move upwards along the vertical direction of the lead.

Preferably, the pin hole is provided with two positioning edges which are arranged along the axis of the pin hole and are axially and symmetrically arranged at the hole end of the top wall of the inner cover cavity in a vertical downward protruding manner; the elastic moving areas of the two groups of anti-theft bayonet locks which are arranged in axial symmetry are positioned between the two positioning edges; when the locking rod is inserted into the pin hole and the shaft shoulder seam allowance of the outer cover is matched with the top surface of the inner cover, the two groups of anti-theft bayonet locks are ejected along the radial direction and are propped against the positioning edge; the root of the locking rod is radially recessed with an annular groove, the axis of which is coaxial with the axis of the locking rod to form a necking section.

Preferably, the device further comprises an outer cover with a downward opening, the outer cover, the inner cover, the cover body and the container opening are coaxial with each other, the cover edge of the outer cover extends downwards along the self-axial direction to cover the cover body, and the bottom end face of the cover edge of the outer cover is flush with the bottom end face of the extending end of the inner cover.

The beneficial effects of the utility model reside in that:

1) The traditional direct plug-in type container sealing structure is abandoned, and the sealing rubber sleeve which can be clamped and positioned at the extending section of the sealing cover is adopted, so that the annular bulge expanded at the sealing rubber sleeve is matched with the annular sunken groove recessed at the opening of the container, and the limiting function of the axial action of the sealing cover is conveniently realized. Particularly, on one hand, the existence of the sealing rubber sleeve realizes the self-sealing function of the fit clearance between the sealing cover and the container mouth, so as to ensure the external sealing performance of the wine. On the other hand, the sealing rubber sleeve is matched with the clamping position between the annular sunken grooves, so that even if certain air exists in the container due to repeated opening and closing of the sealing cover, the sealing cover can be effectively prevented from being popped up due to the fact that the soft media such as silica gel and plastics forming the annular bulges are combined with the annular sunken grooves through tight rabbets. In addition, the sealing rubber sleeve is easy to assemble in the later period due to the elasticity and relative softness of the sealing rubber sleeve, and meanwhile, even if the sealing rubber sleeve is provided with the annular bulge, the sealing rubber sleeve can be pressed into the container opening in the axial direction conveniently due to manpower, reliable positioning is realized, and the sealing rubber sleeve is very convenient to use.

2) And as a further preferable scheme of the scheme, when the positioning matching is formed between the sealing rubber sleeve and the container opening, as a connecting piece, the sealing rubber sleeve and the extension section of the sealing cover form the positioning matching by the matching of the annular clamping groove and the positioning bulge, and finally the matching reliability of the integral component is ensured.

3) And further, thereby rely on sealed gum cover to link up and sealed closing cap and container mouth form one sealed back, the utility model discloses two sealed constructions have still been add. Thereby increase thick face laminating in the section of thick bamboo chamber wall department of container mouth through the hypomere pole body that will extend the section to rely on the sealed face that both faces laminating formed and realize preliminary sealing function, the two of collocation sealing rubber sleeve department are sealed, finally realize the utility model discloses dual seal ability. Above-mentioned double sealing effect, not only avoid outwards giving off of wine liquid, more avoided simultaneously because of wine liquid volatilizees and directly oozes and contact the sealed gum cover along above-mentioned hypomere pole body and container mouth section of thick bamboo wall clearance, and then the wine liquid pollution problem appears, finally ensures the high quality nature that wine liquid was stored. In particular, the extension section is preferably made of ceramic, glass and the like, so that the possibility that materials such as silica gel, plastic and the like forming the sealing rubber sleeve contact wine in the container is reduced as much as possible. Meanwhile, the surface fitting between the bottom of the extension section and the mouth of the container is preferably realized through grinding, so that the surface fitting, coaxiality and sealing performance between corresponding surfaces are ensured through sanding operation, and the purpose of primary sealing of the container is finally achieved. The structure can reduce the chance of contacting media such as silica gel, plastic and the like when the liquid in the container is shaken or volatilized. It is preferable for the stripper rubber to extend along the extension to the shoulder of the cover cap to ensure reliable sealing of the stripper rubber.

4) the utility model discloses a dual lid design of closing cap and inner cover is arranging the sealing washer through the sealed lid that regards as direct cooperation container mouth with the closing cap to when realizing the sealed effect of basis of container mouth, rely on the inner cover as the fixed lid of relative container mouth again, and play the function of location inner cover with the lock bar, so that the inner cover can't be followed radially still to being pulled apart from in the axial, finally realize the reliable encapsulation purpose to arbitrary container oral area. And further, the utility model discloses still through outer chamfer and the interior chamfer of design cambered surface laminating each other to along radially closing when two sets of lids, thereby when the lock pole inserts two sets of lids of pinhole location completely, because of the slope structure of interior chamfer this moment, can be continuous radially and extrude outer chamfer along the aforesaid, and then make the lid make plumbous vertical pushing down the action. According to the principle of the action, the wedge-shaped surface structure can be referred, when two wedge-shaped surfaces of the two groups of sliding blocks are mutually attached, once the sliding blocks are combined in a staggered mode along the slope direction, the lower sliding blocks can be pressed downwards relative to the upper sliding blocks, and the action of the cover body is the same. The cover body applies the force of the pressing action to the matching surface of the sealing cover and then is transmitted to the matching surface of the sealing cover and the container opening, so that the corresponding sealing surfaces among the sealing cover, the cover body and the container opening are more attached. No matter the primary sealing or the secondary or even multiple packaging after opening the bottle, as long as the matching of the inner chamfer and the outer chamfer is reliable, the cover body can generate downward pressure when the cover body is closed, and then the sealing effect of the cover body and the container opening can be ensured all the time, the packaging operation can be repeated for many times, and the use is reliable and stable.

5) And during actual operation, for the space location nature of ensureing the locking piece, the utility model discloses the enclosing cover of step shaft form has been set up. The small diameter section of the outer cover directly forms the locking rod, so that the inner cover is positioned, and the shaft shoulder of the outer cover forms a spigot to limit the downward movement of the locking piece along the pin hole. On the basis of the structure, the utility model discloses the theftproof bayonet lock has more been designed to further inject the ascending action of locking piece along the pinhole. So far, the locking pole itself can inject the separation action each other of lid, and the shaft shoulder of enclosing cover and theftproof bayonet lock have ensured the location nature of locking lever self again, and the ring is buckled each other, finally realizes the utility model discloses an integration encapsulation purpose.

Specifically, in actual assembly, the cover is placed at the container mouth, and thus basic sealing operation is achieved by means of plane fitting between the sealing cover and the container mouth or sealing of a sealing ring. Then, the two groups of cover bodies forming the inner cover are closed along the radial direction, and the top wall of the inner cavity of the inner cover is ensured to be attached to the top end surface of the seal cover. After the two groups of cover bodies are radially closed, notches at the centers of the two groups of cover bodies are naturally closed to form pin holes, and at the moment, the locking rods of the outer covers are inserted into the pin holes along the vertical direction of the lead, so that the pin holes are filled. When the locking rod is inserted into the pin hole and the shaft shoulder seam allowance of the outer cover is matched with the top surface of the inner cover, the anti-theft bayonet lock can be ejected along the radial direction and forms seam allowance matching between the anti-theft bayonet lock and the top wall of the cavity of the inner cover to limit the outer cover to move upwards along the vertical direction of the lead. So far, the radial action of inner cover is injectd by the cooperation of the mortise and tenon joint of locking pole and pinhole of enclosing cover, and the axial action of inner cover is injectd by the cooperation between breach groove or tang and inside flanging or locating pin, and the enclosing cover is fixed on the enclosing cover by the fastening because of the existence of theftproof bayonet lock again simultaneously, finally realizes the integration encapsulation function of enclosing cover, inner cover, closing cap and container mouth. Because the locking rod and the pin hole form anti-rotation fit with a waist-shaped hole-shaped or square-hole-shaped section, the outer cover must be forcibly twisted to twist off the relatively thin locking rod, so that the purpose of damaging the structure of the outer cover can be achieved, and the anti-theft purpose can be realized.

6) And further, the utility model discloses a cantilever rod-like structure that the slope upwards extends forms the theftproof bayonet lock to set up the holding tank that supplies the theftproof bayonet lock to hold, this makes when the enclosing cover is down, the theftproof bayonet lock can be compressed tightly and hold in the holding tank because of the existence of pinhole naturally, thereby promotes its installation effectiveness. When the anti-theft bayonet lock completely enters the cavity of the inner cover, the anti-theft bayonet lock can pop out the locking rod due to the elastic restoring force of the anti-theft bayonet lock, so that the purpose that the spigot is matched with the top wall of the cavity of the inner cover is achieved, and the positioning characteristic of the anti-theft bayonet lock is ensured.

7) In fact, because theftproof bayonet lock is along the incline direction and the slant upwards forms, consequently, in case external force upwards pulls out the enclosing cover by force, the cavity roof slip of the enclosing cover is just followed to the bayonet lock that so has the high possibility, finally appears because of external force that the theftproof bayonet lock is dragged and is leveled or even breaks the phenomenon. In view of this, the utility model discloses still design the location arris. The existence of location arris for even the enclosing cover is pulled up by force to external force, thereby when making theftproof bayonet lock slide along the cavity roof of enclosing cover, the theftproof bayonet lock can be blocked by the arris of location and by force, thereby restricts the outer action that expands of theftproof bayonet lock. The outward expansion action of the anti-theft bayonet lock is limited, the outer cover can not be forcibly pulled out along the axial direction, and finally, the anti-theft performance of the utility model is improved.

8) In view of the fact that if the outer cover is forcibly rotated to screw off the lock lever, a large external force is often applied. The utility model discloses set up the necking segment that the annular groove formed alone again in locking pole root department to artificial increase easy atress deformation section. When rotating the enclosing cover by force, this necking down section can produce deformation because of external force the very first time, finally takes place the phenomenon of rupture in this department to promote its convenient degree of use.

9) If no bolt and jack are provided, on one hand, the inner cover can be pulled out by force of external force only by clamping of the flanging, and the inner cover is integrally separated from the cover body under the condition that the appearance change of the cover body is small, so that the anti-theft performance of the inner cover is reduced; on the other hand, when the outer cover is rotated to twist off the anti-theft bayonet, the outer cover can be rotated to apply force by firstly tightly holding the inner cover, and the use is obviously inconvenient. Through fixing a position each other between bolt and jack, when guaranteeing to use the convenience, obviously also further ensured the utility model discloses a theftproof function.

drawings

FIGS. 1-4 are cross-sectional views of four embodiments of the present invention applied to sealing the mouth of a wine bottle;

FIGS. 5-6 are cross-sectional structural views of two embodiments of the present invention when the present invention is applied to sealing the mouth of a wine jar;

Fig. 7 is a schematic view of the two cover bodies and the locking rod in a matching state.

The corresponding relationship between each figure label and the specific part name of the utility model is as follows:

a-container mouth b-lower bar body

10-closure 10 a-extension 10 b-outer chamfer

11-ring-shaped positioning groove 12-ring-shaped clamping groove

20-sealing rubber sleeve 21-annular bulge 22-positioning bulge

30-inner cover 30 a-cover body 30 b-bolt 30 c-notch 30 d-inner chamfer

31-inner flanging 32-positioning edge

40-outer cover 41-locking lever

41 a-anti-theft bayonet 41 b-receiving groove 41 c-annular groove

Detailed Description

For ease of understanding, the structure and workflow of the present invention will be further described herein with reference to fig. 1-7:

Here, the mouth a of the wine bottle shown in fig. 1 to 4, i.e., the mouth seal, is taken as an example, and the mouth can be radiated to other similar containers, such as wine jars and other packaging structures in actual use. For the convenience of observation, hatching of a part of the structure in the figure is deleted without affecting the understanding of the figure.

The structure of the utility model after the concrete implementation and installation is shown in figures 1-6: the lowest part is a container opening a of the wine bottle, and the top end surface of the container opening a is covered with a sealing cover 10 made of ceramics or similar materials. The sealing cover 10 and the container mouth a or the sealing rubber sleeve 20 can be used for sealing, and a mode of additionally matching a sealing ring and adopting a smooth inclined surface or even a frosted surface to form two sealing can be considered to prevent the volatilization of liquid such as wine and the like.

Specifically, as shown in fig. 1-4, when the present invention is used as a bottle closure for a wine bottle, the shape of the bottle closure, and thus the closure cap 10, can be varied artistically as appropriate depending on the existing structure. Regardless of how the shape of the bottle mouth and thus the closure 10 is changed, the mating configuration of the bottle mouth and the closure 10 must be sealed with a sealing rubber 20. In operation, the bottom end of the closure 10 extends downwardly to form an extension 10a that extends into the bottle mouth and cavity. Since the extension 10a is shaped like a straight round rod, a stepped shaft structure is formed between the extension and the upper portion of the cap 10. When in use, the sealing cover 10 is inserted into the bottle mouth from top to bottom, and the extension section 10a extends into the bottle mouth and the bottle cavity. The annular protrusion 21 of the sealing rubber sleeve 20, which is limited and fixed on the extension section 10a in advance by the annular clamping groove 12, the positioning protrusion 22 and the annular positioning groove 11, moves downward along the axial direction of the bottle mouth under the external force application, and finally the annular protrusion 21 at the sealing rubber sleeve 20 is clamped into the annular sinking groove in the bottle mouth. Because of the clamping cooperation between the annular bulge 21 and the annular sinking groove, even if a certain amount of air is stored in the container due to repeated opening and closing of the sealing cover 10, the phenomenon that the bottle stopper is popped out due to the change of the air pressure in the container on the sealing cover 10 can be effectively prevented because soft media such as silica gel, plastics and the like forming the annular bulge 21 are tightly combined with the annular sinking groove.

In order to further improve the sealing performance of the closure 10 with respect to the bottle mouth, i.e. the container mouth a, in the structure shown in fig. 1-6, the rod diameter of the lower rod b of the extension section 10a is substantially equal to the cylinder diameter of the bottle cavity of the bottle mouth at the matching position. If necessary, the lower stem b of the extension segment 10a and the corresponding part of the bottle mouth and the bottle cavity can be further processed by grinding or the like, so that the matching property and the contact sealing property of the extension segment and the bottle cavity are further improved by a sanding process, and finally, the secondary sealing function of the closure 10 and the container mouth a is ensured.

When the utility model is applied to the sealing of the wine jar mouth, as shown in fig. 5-7, the utility model also adopts the outer cover 40 and the inner cover 30 which are coaxially arranged with each other and are arranged according to the order from top to bottom. At this moment, the sealed structure of aforementioned bottleneck project organization is used for realizing frequently opening and close of wine jar, and the theftproof nature of wine jar self and the sealed effect of initial storage then rely on following structure to realize:

In fig. 5-7, the present invention employs an outer cover 40 and an inner cover 30 coaxially disposed with each other and sequentially disposed from top to bottom. The inner cover 30 has a barrel-like structure with an opening facing downward, and the inner cover 30 is split to form two sets of covers 30a when in use. When the two sets of covers 30a are coupled in half in the radial direction as shown in fig. 7, the coupling edges of the two sets of covers 30a form an S-shaped coupling gap. In order to ensure the positioning property of the cover body 30a after the cover body 30a is assembled, a notch 30c having a straight edge as shown in fig. 7 is provided at the assembling edge of the cover body 30a, and when two sets of cover bodies 30a are radially assembled with each other, the two sets of notches 30c surround each other to form a pin hole having a kidney-shaped hole shape or a square hole shape in the drawing. The outer cover 40 has a two-step shaft structure with a thick upper portion and a thin lower portion as shown in fig. 5-6. The large diameter section of the outer cover 40 constitutes an outer force application section for grasping and applying a torsion force. The locking lever 41 of the outer cover 40 is formed as a dowel to be inserted into the dowel hole, to serve to restrain the two sets of covers 30a from being separated from each other in the radial direction.

Further, the utility model discloses utilized the mechanism of wedge face mismatch, and designed outer chamfer 10b and the interior chamfer 30d that the cambered surface was laminated each other. Referring to fig. 5-6, when the two sets of cover bodies 30a are aligned in the radial direction and the locking rod 41 is fully inserted into the pin hole to position the two sets of cover bodies 30a, the inner chamfer 30d continuously presses the outer chamfer 10b in the radial direction due to the slope structure of the inner chamfer 30d and the displacement actions of the two sets of cover bodies 30a that are close to each other, so that the sealing cap 10 is pressed down in the vertical direction of lead. The sealing cap 10 will apply the force of pressing action to the mating surface of the container mouth a, which is equivalent to applying a downward pressure to the sealing cap 10 by someone all the time, and obviously the mating sealing effect of the cap body 30a and the container mouth a can be greatly improved. And when using as the user oneself, even destroyed above-mentioned theftproof structure, because of the existence of interior chamfer 30d and outer chamfer 10b, all can rely on its similar wedge complex structure and the repeated encapsulation of carrying out container mouth a portion many times after using the container at every turn, thereby make the utility model discloses extremely strong repeated encapsulation nature has been possessed.

As shown in fig. 5-6, the present invention further has two sets of anti-theft locking pins 41a arranged on the locking rod 41 in an axisymmetric manner, i.e. the anti-theft locking pins 41a are part of the locking rod 41, so that the anti-theft locking pins 41a can expand along the radial direction to realize the function of restraining and limiting, and finally the outer cover 40 can be reliably fixed on the inner cover 30, and the outer cover 40 is prevented from moving upwards away from the inner cover 30. The anti-theft bayonet 41a can be further refined, as shown in fig. 5-6, since the anti-theft bayonet 41a is formed obliquely upward along the oblique direction, once the external force is forced to pull the external cover 40 upward, the anti-theft bayonet 41a is likely to slide along the top wall of the cavity of the external cover 40, and finally, the anti-theft bayonet 41a is pulled flat or even broken due to the external force. In view of this, the present invention further designs the positioning rib 32, so that even if an external force forcibly pulls up the outer cover 40, so that the anti-theft bayonet 41a slides along the top wall of the cavity of the outer cover 40, the anti-theft bayonet 41a will be forcibly blocked by the edge of the positioning rib 32, thereby limiting the outward expansion of the anti-theft bayonet 41 a. The outward expansion action of the anti-theft bayonet 41a is limited, and the outer cover 40 can not be forcibly pulled out along the axial direction, so that the anti-theft performance of the utility model is finally improved. It is considered that if the outer cover 40 is forcibly rotated to twist off the lock lever 41, a large external force is often applied. The utility model discloses the neck section that forms with annular groove 41c sets up again alone in locking pole 41 root department to artificial increase easy atress deformation section. When the outer cap 40 is rotated by force, the necking portion is deformed by external force for the first time, and finally, the outer cap is broken at the position.

In the case of the closure 10, the recesses may be arranged as shown in figures 5 to 6 to enable the displacing action of the locking bar 41 to clear the closure 10 when the outer lid 40 is assembled. The provision of the recessed hole in the cap 10 also functions as a positioning hole, so that when a frosted sealing surface is formed on the lower stem b of the extension 10a of the cap 10 by a frosting process, for example, the positioning shaft of the machine can be directly and coaxially positioned in the recessed hole, thereby achieving a standard machining effect. The extension of the inner cover 30 is extended to the side wall of the container opening a, and the inner flange 31 is arranged to form a spigot fit with the spigot at the side wall of the container opening a.

As an independent structure, the cover edge of the outer cover can extend downwards along the self-axial direction to cover the cover body 30a, and the bottom end face of the cover edge of the outer cover 40 is flush with the bottom end face of the extending end of the inner cover 30, so as to cover the outer cover 40, the inner cover 30 and the cover body 30a and improve the structural integrity of the outer cover, the inner cover and the cover body. Even the outer cover 40 and the outer cover can be fastened together by glue, thereby improving the assembling efficiency and the convenience. The top end face of the outer cover 40 can be further provided with process designs such as decorative pictures, so as to further beautify the utility model.

Claims (10)

1. A tamperproof container sealing device comprising a cover (10) inserted at a container mouth (a), characterized in that: the cover is equipped with sealed gum cover (20) to extension section (10a) outer wall department cover that can stretch into in container mouth (a) of closing cap (10), the coaxial protruding of outer wall department of sealed gum cover (20) is equipped with annular arch (21), and the coaxial encircleing of the inner wall department circumference of container mouth (a) is equipped with annular heavy groove, thereby annular arch (21) card goes into annular heavy inslot spacing closing cap (10) and produces the ascending action of axial.

2. A ballistic resistant plug container closure assembly according to claim 1 wherein: the shape of the sealing rubber sleeve (20) is in a straight cylinder shape; the outer wall of the extension section (10a) is coaxially and concavely provided with an annular clamping groove (12), the inner wall of the sealing rubber sleeve (20) is correspondingly provided with a positioning protrusion (22) matched with the annular clamping groove (12) in shape, and the positioning protrusion (22) and the annular clamping groove (12) form positioning fit for limiting the axial action of the sealing rubber sleeve (20) along the extension section (10 a).

3. a ballistic resistant plug container closure assembly according to claim 2 wherein: a set of positioning protrusions (22) and a set of annular grooves which are matched with each other form a set of positioning units, and the positioning units are distributed in sequence along the axial direction of the seal cover (10).

4. A ballistic resistant plug container closure assembly according to claim 1 wherein: the middle section and/or the upper section of the rod body of the extension section (10a) are coaxially and concavely provided with annular positioning grooves (11) for integrally hooping the sealing rubber sleeve (20); the lower rod body (b) of the extension section (10a) extending out of the sealing rubber sleeve (20) is matched with the cylinder diameter of the container opening (a) so that the outer wall of the lower rod body (b) can be attached to the cylinder wall of the container opening (a) in a surface-to-surface sealing manner and pressed tightly.

5. A tamper evident container closure assembly as claimed in claim 1 or 2 or 3 or 4, wherein: the shape of the sealing cover (10) is in a two-section stepped shaft shape, the small-diameter section of the sealing cover (10) forms the extension section (10a), and a spigot fit is formed between the shaft shoulder of the sealing cover (10) and the top end opening edge of the container opening (a); the top end of the sealing rubber sleeve (20) extends to the shaft shoulder of the sealing cover (10).

6. A tamper evident container closure assembly as claimed in claim 1 or 2 or 3 or 4, wherein: the device also comprises an inner cover (30) coaxially arranged on the sealing cover (10), wherein the outer edge of the inner cover (30) axially extends downwards along the side wall of the sealing cover (10) so as to cover the sealing cover (10); a notch groove or a spigot is radially and inwardly arranged at the outer wall of the container opening (a), a downward extending section formed by downward extending of the inner cover (30) extends to the container opening (a), and then an inward flange (31) or a positioning pin radially extends towards the notch groove or the spigot, so that a vertical limiting structure for limiting the vertical displacement of lead generated by the inner cover (30) is formed between the inward flange (31) or the positioning pin and the notch groove or the spigot; the inner cover (30) is formed by splicing two groups of cover bodies (30a) in a split mode, inserting pins (30b) are arranged on the inner peripheral walls of the two groups of cover bodies (30a) in a radially inward protruding mode, inserting holes are correspondingly formed in the outer peripheral wall, matched with the cover bodies (30a), of the sealing cover (10) in a concave mode, and the inserting direction of the inserting pins (30b) relative to the inserting holes and the installation direction of the cover bodies (30a) are in the same direction; notches (30c) are concavely arranged on the splicing edges of the two groups of cover bodies (30a), and when the two groups of cover bodies (30a) are folded along the radial direction to form the inner cover (30), the notches (30c) on the two groups of cover bodies (30a) are folded with each other to form a pin hole with the axis vertical to lead; the device also comprises a locking rod (41) which is inserted into the pin hole from top to bottom along the vertical direction of the lead, so that a mortise-tenon matched structure which limits the two groups of cover bodies (30a) to be separated from each other in the radial direction is formed between the locking rod (41) and the pin hole.

7. A tamper evident container closure assembly as claimed in claim 6, wherein: the combined edge of the top end face of the sealing cover (10) and the peripheral wall of the sealing cover (10) is provided with an outer chamfer (10b), and the combined edge of the top wall of the cavity of the inner cover (30) and the side wall of the cavity of the inner cover (30) is provided with an inner chamfer (30d) matched with the outer chamfer (10b), so that when two groups of cover bodies (30a) are aligned in the radial direction, the inner chamfer (30d) and the outer chamfer (10b) are extruded in the radial direction, and the cover bodies (30a) are forced to perform vertical pressing action of lead.

8. A tamper evident container closure assembly as claimed in claim 6, wherein: the device comprises an outer cover (40) which is in a two-section stepped shaft shape with a thick upper part and a thin lower part, wherein a shaft shoulder spigot of the outer cover (40) is matched with the top surface of an inner cover (30), and a small-diameter section of the outer cover (40) forms a locking rod (41); in the view angle of the vertical direction, the outline of the pin hole is in a waist-shaped hole shape or a square hole shape, two straight edges of the pin hole are formed by splicing two groove edges of the notch (30c), and the radial section of the locking rod (41) is in a waist-shaped hole shape or a square hole shape consistent with the outline of the pin hole so as to be matched with the pin hole in an inosculating way; the anti-theft bayonet lock is characterized in that anti-theft bayonet locks (41a) capable of popping along the radial direction of the locking rod (41) are arranged on the outer wall of the locking rod (41), the anti-theft bayonet locks (41a) are formed by protruding planes of two straight edges of the locking rod (41) and extending upwards in an inclined mode, acute included angles are formed between the anti-theft bayonet locks and the planes of the two straight edges of the locking rod (41), and at the moment, two groups of anti-theft bayonet locks (41a) are arranged around the axis of the locking rod (41) in an axial symmetry mode; an accommodating groove (41b) for the anti-theft bayonet (41a) to retract in the radial direction is concavely arranged on the outer wall of the locking rod (41); when the locking rod (41) is inserted into the pin hole and the shaft shoulder seam allowance of the outer cover (40) is matched with the top surface of the inner cover (30), the anti-theft bayonet lock (41a) is ejected along the radial direction and forms a seam allowance matched with the top wall of the cavity of the inner cover (30) for limiting the outer cover (40) to move upwards along the lead vertical direction.

9. a tamper evident container closure assembly as claimed in claim 8, wherein: two positioning edges (32) are convexly arranged at the hole end of the top wall of the cavity of the inner cover (30) of the pin hole in the vertical direction of the lead, and are axially symmetrically arranged along the axis of the pin hole; the elastic moving areas of two groups of anti-theft clamping pins (41a) which are arranged in axial symmetry are positioned between the two positioning edges (32); when the locking rod (41) is inserted into the pin hole and the shaft shoulder spigot of the outer cover (40) is matched with the top surface of the inner cover (30), two groups of anti-theft bayonet locks (41a) are ejected out along the radial direction and are abutted against the positioning edge (32); the root of the locking rod (41) is radially recessed with an annular groove (41c), and the axis of the annular groove (41c) and the axis of the locking rod (41) are coaxial with each other to form a necking section.

10. a tamper evident container closure assembly as claimed in claim 8, wherein: the device also comprises an outer cover with a downward opening, the outer cover (40), the inner cover (30), the cover body (30a) and the container opening (a) are coaxial with each other, the cover edge of the outer cover extends downwards along the axial direction of the outer cover so as to cover the cover body (30a), and the bottom end face of the cover edge of the outer cover (40) is flush with the bottom end face of the extending end of the inner cover (30).