CN215476965U - Sealing can cover - Google Patents

Abstract

The application relates to the technical field of food storage containers, in particular to a sealing can cover, which comprises an outer cover body, an inner cover body, an elastic sealing ring, a linkage shaft and a stirring piece; the outer cover body is provided with a through hole; the inner cover body is arranged below the outer cover body and can move towards or away from the outer cover body, and a convex ring is arranged on the outer wall of the inner cover body; the inner wall of the elastic sealing ring is provided with a positioning groove which is sleeved and fixed on the outer wall of the inner cover body through a convex ring and a positioning groove which are matched; the bottom end of the linkage shaft is fixedly connected with the inner cover body, and the top end of the linkage shaft movably penetrates through the through hole of the outer cover body to be pivoted with the stirring piece; the stirring piece rotates towards the top surface of the outer cover body and drives the inner cover body and the elastic sealing ring to move upwards when contacting and abutting against the top surface of the outer cover body, so that the inner wall of the elastic sealing ring contacts and abuts against the side wall of the outer cover body, the elastic sealing ring expands outwards and abuts against the inner wall of the tank body, and the tank cover and the tank body are sealed. This application has mainly been solved and has had the mould complicacy and clean inconvenient technical problem among the prior art.

Description

Sealing can cover

Technical Field

The application relates to the technical field of food storage containers, in particular to a sealing can cover.

Background

Generally, a plurality of sealing designs are provided for common storage tanks on the market, and one mode is to seal a cover body provided with a sealing ring at an opening of the tank body, and then to operate a poking rod piece arranged on the cover body to enable the sealing ring of the cover body to be tightly attached to the tank body of the storage tank, so that the aim of sealing the tank body is fulfilled. Wherein, be equipped with the annular groove on the current lid to the sealing washer cutting ferrule is in the annular groove. However, the annular groove structure causes the mold required by the cover body in production to be complicated, and the groove needs to have enough depth for the seal ring to be installed stably, which brings great inconvenience to daily cleaning.

SUMMERY OF THE UTILITY MODEL

In view of this, the purpose of this application is to provide a sealed cover, adopt the buckle connected mode of bulge loop and location boss between elastic seal circle and the inner cup body, not only can guarantee that elastic seal circle is stably installed on the lid, but also can reduce the processing degree of difficulty of lid, and daily cleanness is also comparatively convenient, has solved effectively that there is the mould complicacy and clean inconvenient technical problem among the prior art.

In order to achieve the purpose, the application provides the following technical scheme:

a sealed tank cover comprises an outer cover body, an inner cover body, an elastic sealing ring, a linkage shaft and a stirring piece;

the outer cover body is provided with a through hole;

the inner cover body is arranged below the outer cover body and can move towards or away from the outer cover body;

a convex ring is arranged on the outer wall of the inner cover body;

the inner wall of the elastic sealing ring is provided with at least two positioning bosses, and a positioning groove matched with the convex ring is formed between every two adjacent positioning bosses;

the elastic sealing ring is sleeved and fixed on the outer wall of the inner cover body through the convex ring and the positioning groove which are matched;

the bottom end of the linkage shaft is fixedly connected with the inner cover body, and the top end of the linkage shaft movably penetrates through the through hole of the outer cover body;

the poking piece is arranged at the top of the outer cover body and is pivoted to the top end of the linkage shaft;

the distance between the bottom end surface of the shifting piece and the pivot axis of the shifting piece is smaller than the distance between any side surface of the shifting piece and the pivot axis of the shifting piece;

the stirring piece rotates towards the top surface of the outer cover body and is in contact with the top surface of the outer cover body to abut against the top surface of the outer cover body, the inner cover body and the elastic sealing ring are driven to move upwards, so that the inner wall of the elastic sealing ring is in contact with and abuts against the side wall of the outer cover body, the elastic sealing ring is expanded outwards and abuts against the inner wall of the tank body, and the tank cover and the tank body are sealed.

Preferably, in the above-mentioned sealing can cover, a recess is provided on an inner wall of the elastic sealing ring.

Preferably, in the above-mentioned sealing can cover, the convex ring extends to the adjacent inside of the boss and is provided with a fixture block.

Preferably, in the above-described sealing can lid, the number of the catches is one or more.

Preferably, in the above-described sealing can lid, the elastic sealing ring is disposed to be inclined outward toward the outer cap body.

Preferably, in the above-mentioned sealing can cover, the outer side wall of the outer cover body extends towards the inner cover body to form an upper limiting ring, the upper limiting ring is recessed in a stepped manner relative to the outer side wall of the outer cover body, and the outer wall of the upper limiting ring abuts against the inner wall of the elastic sealing ring.

Preferably, in the above-mentioned sealing can lid, the inner lid includes a bottom plate and a lower limit ring formed by extending the edge of the bottom plate toward the outer lid;

the side length or the diameter of the lower limiting ring is smaller than that of the upper limiting ring, and the outer side wall of the lower limiting ring is abutted against the inner side wall of the upper limiting ring when the inner cover body is in a movable state relative to the outer cover body.

Preferably, in the above-mentioned sealing can cover, an inner concave platform is provided at the top of the outer cover body, and the through hole and the stopper are provided on the inner concave platform;

the through holes are formed in two opposite inner side walls of the concave platform;

the number of the linkage shafts is two, and the linkage shafts are arranged corresponding to the through holes;

the poking piece is U-shaped, and two ends of the poking piece are respectively pivoted with the corresponding linkage shafts.

Preferably, the sealing can cover includes a locking member disposed on the toggle member and a limiting member disposed on the outer cover;

the limiting piece is a groove arranged on the side wall of the inner concave platform;

the shifting piece is provided with a sliding hole for the lock catch piece to slide, and the sliding hole penetrates through the inner side and the outer side of the shifting piece;

the lock catch piece comprises a sliding button and a locking plate, and one end of the locking plate is connected with the sliding button;

the sliding button is arranged on the inner side of the poking piece, the sliding button slides, the locking plate extends out of the outer side of the poking piece, and the other end of the locking plate enters the groove to realize clamping and stopping matching of the locking device.

Preferably, in the above-mentioned sealing can cover, a spring is provided between the outer cover body and the inner cover body;

the outer cover body is provided with a first positioning ring;

the inner cover body is provided with a second positioning ring corresponding to the first positioning ring;

and two ends of the spring are respectively arranged in the first positioning ring and the second positioning ring.

Compared with the prior art, the beneficial effects of this application are:

(1) the elastic sealing ring and the inner cover body are connected in a buckling mode through the convex ring and the positioning boss, so that the elastic sealing ring can be stably installed on the cover body, the processing difficulty of the cover body can be reduced, the daily cleaning is convenient, and the technical problems of complex mold and inconvenient cleaning in the prior art are effectively solved;

(2) stir outside lid top surface direction of piece and when offseting with the contact of outer lid top surface, lid and elastic sealing circle shift up in the drive, the elastic component is compressed, go up spacing ring and outwards strut elastic sealing circle, make elastic sealing circle's outer wall contact offset in the inner wall of the jar body, realize that cover and jar body are sealed, and the mobilizable cooperation that stops with the recess of snap close piece, fix the position of stirring the piece, avoid stirring the piece and taken place by the condition that the mistake was touched, the technical problem that current seal pot exists to stir the piece and is easily touched by the mistake and lead to sealed lid deblocking has been solved effectively.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a cross-sectional view of a sealed can lid according to an embodiment of the present disclosure shown in the open position;

FIG. 2 is a cross-sectional view of a sealed can lid according to an embodiment of the present disclosure in a sealed position;

FIG. 3 is a schematic view of the installation of a first elastomeric sealing ring for sealing a can lid according to an embodiment of the present disclosure;

FIG. 4 is a schematic view of the installation of a second elastomeric seal ring for sealing a can lid in accordance with an embodiment of the present disclosure;

FIG. 5 is a schematic view of a third elastomeric sealing ring for sealing a can lid according to an embodiment of the present disclosure;

FIG. 6 is a schematic view of the installation of a fourth elastomeric seal ring for sealing a can lid in accordance with an exemplary embodiment of the present disclosure;

FIG. 7 is a top view of a sealed can lid according to an embodiment of the present disclosure in an unsealed condition;

FIG. 8 is a top plan view of a sealed can lid according to an embodiment of the present disclosure;

FIG. 9 is a perspective view of a sealed can lid according to an embodiment of the present disclosure, taken from above;

FIG. 10 is a bottom perspective view of a sealed can lid according to the present application;

FIG. 11 is a top perspective view of an outer lid of a sealed can lid according to an embodiment of the present disclosure;

FIG. 12 is a bottom perspective view of an outer lid of a sealed can lid according to the present application;

FIG. 13 is a perspective view of an inner lid body for a sealed can lid according to an embodiment of the present disclosure;

FIG. 14 is a perspective view of a resilient sealing ring for sealing a can lid according to an embodiment of the present disclosure;

FIG. 15 is a perspective view of a toggle member for sealing a can lid in accordance with an embodiment of the present disclosure;

FIG. 16 is a perspective view of a latch for sealing a can lid according to an embodiment of the present disclosure;

figure 17 is a cross-sectional view of a closure for sealing a can lid according to an embodiment of the present application.

In the figure:

the structure comprises an outer cover body 1, an inner concave platform 11, a locking groove 12, a through hole 13, an upper limiting ring 14, a first positioning ring 15, an inner cover body 2, a bottom plate 21, a lower limiting ring 22, a second positioning ring 23, a convex ring 24, an elastic sealing ring 3, a positioning boss 31, a positioning groove 32, a clamping block 33, a recess 34, an installation part 301, an extension part 302, an elastic part 4, a toggle part 5, a sliding hole 51, a convex shaft 52, a coupling shaft 6, a shaft hole 61, a lock catch 7, a sliding button 71, a connecting rod 72 and a locking plate 73.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

Generally, a plurality of sealing designs are provided for common storage tanks on the market, and one mode is to seal a cover body provided with a sealing ring at an opening of the tank body, and then to operate a poking rod piece arranged on the cover body to enable the sealing ring of the cover body to be tightly attached to the tank body of the storage tank, so that the aim of sealing the tank body is fulfilled. Wherein, be equipped with the annular groove on the current lid to the sealing washer cutting ferrule is in the annular groove. However, the annular groove structure causes the mold required by the cover body in production to be complicated, and the groove needs to have enough depth for the seal ring to be installed stably, which brings great inconvenience to daily cleaning. This embodiment provides a sealed cover, has solved effectively and has had the mould complicacy and clean inconvenient technical problem among the prior art.

Referring to fig. 1-17, an exemplary embodiment of a can lid includes an outer lid 1, an inner lid 2, an elastic sealing ring 3, a coupling shaft 6, and a toggle member 5; the outer cover body 1 is provided with a through hole; the inner cover body 2 is arranged below the outer cover body and can move towards or away from the outer cover body, and a convex ring 24 is arranged on the outer wall of the inner cover body; the inner wall of the elastic sealing ring 3 is provided with at least two positioning bosses 31, and a positioning groove 32 matched with the convex ring 24 is formed between every two adjacent positioning bosses 31; the elastic sealing ring 3 is sleeved on the outer wall of the inner cover body 2 through a convex ring 24 and a positioning groove 32 which are matched with each other; the bottom end of the coupling shaft 6 is fixedly connected with the inner cover body 2, and the top end of the coupling shaft movably penetrates through the through hole of the outer cover body 1; the stirring piece 5 is arranged at the top of the outer cover body 1 and is pivoted to the top end of the linkage shaft 6; the distance between the bottom end surface of the shifting piece 5 and the pivot axis thereof is smaller than the distance between any side surface of the shifting piece 5 and the pivot axis thereof; the stirring piece 5 rotates towards the top surface of the outer cover body 1 and is in contact with the top surface of the outer cover body 1 to abut against the top surface of the outer cover body, the inner cover body 2 and the elastic sealing ring 3 are driven to move upwards, so that the inner wall of the elastic sealing ring 3 is in contact with the side wall of the outer cover body 1, the elastic sealing ring 3 is expanded outwards to abut against the inner wall of the tank body, and the tank cover and the tank body are sealed.

More specifically, referring to fig. 3, the number of the protruding rings 24 on the inner cover 2 is one, and the elastic sealing ring 3 is in interference fit with the protruding rings 24 through the positioning grooves 32 formed by the two positioning bosses 31, so that the elastic sealing ring 3 is stably installed and is not easy to fall off, and in addition, the material of the elastic sealing ring 3 has good elastic expansion performance, so that sufficient pretightening force can be generated during clamping, and the pretightening force is not less than the rebound force generated when the elastic sealing ring 3 is extruded and deformed by the side wall of the outer cover 1, thereby ensuring that the elastic sealing ring 3 cannot fall off due to extrusion.

The beneficial effect of this embodiment is: through the buckle connected mode of adopting bulge loop 24 and location boss 31 between elastic seal circle 3 and the inner cup body 2, not only can guarantee that elastic seal circle 3 is stably installed on the lid, but also can reduce the processing degree of difficulty of lid, daily cleanness is also comparatively convenient, has solved effectively that there is the mould complicacy and clean inconvenient technical problem among the prior art.

Further, in the present embodiment, referring to fig. 4, a recess 34 is formed on an inner wall of the elastic sealing ring 3. The elastic sealing ring 3 consists of a mounting part 301 and an extension part 302, the positioning boss 31 is arranged on the mounting part 301, and the extension part 302 is a non-contact part of the elastic sealing ring 3 and the convex ring 24; the area with smaller thickness can be arranged at the joint of the extension part 302 and the installation part 301 through the arrangement of the recess 34, the local rigidity of the elastic sealing ring 3 can be effectively reduced, so that the transmission of resilience force generated when the extension part 302 is extruded and deformed to the installation part 301 can be reduced, the elastic sealing ring 3 is prevented from falling off from the inner cover body 2, and meanwhile, because the elastic sealing ring 3 is easy to deform, the arrangement of the recess 34 can also reduce the resistance of the operation stirring piece 5 to a certain extent.

Further, in the present embodiment, referring to fig. 5 and 6, a block 33 is disposed inside the adjacent boss extending from the protruding ring 24, and the shape of the positioning groove 32 changes along with the shape changes of the protruding ring 24 and the block 33. The arrangement of the clamping blocks 33 not only can effectively reinforce the connection between the elastic sealing ring 3 and the inner cover body 2, but also the clamping blocks 33 and the convex ring 24 can jointly form a hook-shaped structure, so that the elastic sealing ring 3 can be limited to move along the radial direction, and the elastic sealing ring 3 can be prevented from falling off from the inner cover body 2.

More specifically, the latch 33 may be vertically connected to the protruding ring 24, and the latch 33 may also be connected to the protruding ring 24 at an acute angle or an obtuse angle, so that the connection between the elastic sealing ring 3 and the inner lid body 2 can be reinforced no matter the included angle between the latch 33 and the protruding ring 24 is a right angle, an obtuse angle or an acute angle.

Further, in the present embodiment, please refer to fig. 5 and 6, the number of the latch 33 is one or more. The number of the fixture blocks 33 is not limited to one, and the fixture blocks 33 can be multiple, and the fixture blocks 33 and the correspondingly changed positioning grooves 32 are clamped and matched, so that the connection between the elastic sealing ring 3 and the inner cover body 2 can be further reinforced, and the stability of the elastic sealing ring 3 mounted on the inner cover body 2 is ensured.

More specifically, the two latches 33 are preferably provided, and the two latches 33 are symmetrically provided on both sides of the protruding ring 24.

Further, in the present embodiment, please refer to fig. 1 and fig. 2, the elastic sealing ring 3 is disposed to be inclined outward toward the outer cover 1. The arrangement is convenient for the inner wall of the sealing ring 3 to contact and abut against the outer wall of the upper cover body 1 and then expand outwards.

More specifically, the elastic sealing ring 3 is made of silicone rubber, and has good fitting performance and elasticity, so that the sealing tank cover can be conveniently switched between a sealing state and an unsealing state.

Further, in the present embodiment, referring to fig. 12, the outer side wall of the outer lid 1 extends toward the inner lid 2 to form an upper limiting ring 14, the upper limiting ring 14 is stepped and retracted relative to the outer side wall of the outer lid 1, and the outer wall of the upper limiting ring 14 abuts against the inner wall of the elastic sealing ring 3. Through the step formula internal contraction that goes up spacing ring 14, make the lid of storing jar when the deblocking state, through this stair structure and jar body opening edge upper surface contact butt, make the operation that the lid closed light more and convenient.

Further, in the present embodiment, referring to fig. 13, the inner lid 2 includes a bottom plate 21 and a lower limiting ring 22 formed by extending the edge of the bottom plate 21 toward the outer lid 1; the side length or the diameter of the lower limiting ring 22 is smaller than that of the upper limiting ring 14, and the outer side wall of the lower limiting ring 22 abuts against the inner side wall of the upper limiting ring 14 in the movable state of the storage tank. Through the design that lower limit ring 22 length of side or diameter are less than upper limit ring 14 length of side or diameter, make the in-process that inner cup body 2 removed to outer lid 1, make upper limit ring 14 can contact the butt with elastic sealing ring 3, the design that the lateral wall of lower limit ring 22 leaned on with the inside wall of upper limit ring 14 under the storing jar active state can make inner cup body 2 more stable for the motion of outer lid 1.

Further, in the present embodiment, please refer to fig. 11, an inner concave 11 is disposed on the top of the outer cover 1, and the through hole 13 is opened on the inner concave 11; the toggle piece 5 rotates on the concave table. Through the arrangement of the inner concave platform 11, the stirring piece 5 can be contracted in the inner concave platform 11 when the sealing tank cover is sealed, and cannot protrude from the upper surface of the outer cover body 1, so that the stacking of a plurality of tank bodies is facilitated.

Further, in the present embodiment, referring to fig. 7 and 8, the through holes 13 are disposed on two inner sidewalls opposite to the inner concave, and two linking shafts 6 are disposed corresponding to the through holes 13. The interlocking shafts 6 on the two sides can prevent uneven force application when the toggle piece 5 is operated, so that the toggle piece 5 and the inner cover body 2 incline relative to the outer cover body 1 to influence normal use.

Further, in the present embodiment, referring to fig. 15, the toggle member 5 is U-shaped, and two ends of the toggle member 5 are respectively pivoted to the corresponding linking shafts 6. By providing the toggle member 5 as a U-shaped structure, the installation can be facilitated, and the protruding shaft 52 can be engaged into the shaft hole 61 only by applying a certain kneading force.

More specifically, referring to fig. 13, two linking shafts 6 are provided with shaft holes 61, two ends of the toggle member 5 are respectively provided with protruding shafts 52 matched with the shaft holes 61, and the toggle member 5 is pivoted with the linking shafts 6 through the shaft holes 61 and the protruding shafts 52; the distance between the bottom end surface of the toggle piece 5 and the pivot axis thereof is smaller than the distance between any one side surface of the toggle piece 5 and the pivot axis thereof, that is, the distance between the bottom end surface of the toggle piece 5 and the axis of the convex shaft 52 is smaller than the distance between any one side surface of the toggle piece 5 and the axis of the convex shaft 52.

Further, in the present embodiment, please refer to fig. 7 and 8, further including a locking member 7 disposed on the toggle member 5 and a groove 12 disposed on the side wall of the concave platform; the locking member 7 includes a slide button 71 and a locking piece 73 connected to each other; the shifting piece 5 is provided with a sliding hole 51 corresponding to the lock catch piece 7; the sliding hole 51 penetrates through the inner side and the outer side of the toggle piece 5; the slide button 71 is arranged on the inner side of the toggle piece 5, and the locking piece 73 is arranged on the outer side of the toggle piece 5; the sliding button 71 is slid, the locking piece 73 extends out of the poking piece 5, the other end of the locking piece 73 enters the groove 12, and the locking and the stopping matching of the locking piece 7 and the groove 12 are realized; sliding the sliding button 71 in the reverse direction, the locking piece 73 exits the groove 12 and retracts into the toggle piece 5, so as to unlock the locking piece 7 from the groove 12.

More specifically, the sliding button 71 is connected with the locking plate 73 through the connecting rod 72, the sliding button 71 and the locking plate 73 can both be plate-shaped, and the sliding button 71 and the locking plate 73 are arranged perpendicularly, so that the installation of the locking piece 7 is facilitated, and the user can conveniently operate the locking piece 7; the number of the grooves 12 can be two, and the two grooves 12 are symmetrically arranged at two ends of the inner concave platform 11, so that the arrangement ensures that the lock catch piece 7 on the shifting piece 5 can be in clamping fit with the grooves 12 in the corresponding direction no matter which direction the shifting piece 5 rotates, and the use is more convenient; in addition, the U-shaped shifting member 5 can provide an operating space for the locking member 7, so that the locking member 7 can be movably clamped and matched with the groove 12.

Further, in the present embodiment, an elastic member 4 is provided between the outer cap 1 and the inner cap 2. Through setting up elastic component 4, can make the sealed tank lid switch to the deblocking state from encapsulated situation when, the better reseing of inner cup body 2 ability.

More specifically, referring to fig. 12 and 13, the elastic member 4 is embodied as a spring; the outer cover body 1 is provided with a first positioning ring 15; the inner cover body 2 is provided with a second positioning ring 23 corresponding to the first positioning ring 15; the two ends of the spring are mounted in the first retaining ring 15 and the second retaining ring 23, respectively. The elastic member 4 can be a spring, an elastic rubber block or other elastic components, the spring is preferably adopted as the elastic member 4 in the embodiment, and the spring has the advantages of mature manufacturing process, low cost and stable elastic expansion and contraction. By providing the first retaining ring 15 and the second retaining ring 23, the mounting of the spring is more stable and convenient.

The specific working process of this embodiment:

(1) when the can cover needs to seal the can body, the stirring piece 5 swings to an unsealing position (vertical position) vertical to the outer cover body 1, and then the sealing cover covers the opening of the can body;

then, the toggle ring is driven to rotate to a sealing position (horizontal position) lying against the top surface of the concave table 11 in the outer cover 1, at this time, because the distance from the side surface of the toggle member 5 to the axis of the convex shaft 52 is greater than the distance from the bottom surface to the axis of the convex shaft 52, the toggle member 5 will drive the linkage shaft 6 and the inner cover 2 to move up relative to the outer cover 1, and at the same time, the outer end of the elastic sealing ring 3 is pushed downwards by the upper limit ring 14 of the outer cover 1 moving downwards, so that the elastic sealing ring 3 deformed by elastic radial outward expansion is tightly pressed against the inner wall of the tank body, thereby achieving the purpose of sealing the opening of the tank body. At the moment, the sealing tank cover is an airtight plug which is abutted against the tank body and is not easy to be directly detached upwards.

Finally, the locking fastener 7 is driven to move to the locking and stopping matching with the groove 12, so that the poking piece 5 is locked on the outer cover body 1, and the poking piece 5 cannot swing to the unlocking position perpendicular to the top surface of the concave table 11 in the outer cover body 1.

(2) When the sealing cover is to be opened, the locking fastener 7 is driven to move to the position where the locking fastener is withdrawn from the groove 12, the poking rod piece 5 is rotated to be located at the unsealing position which is perpendicular to the top surface of the concave table 11 in the outer cover body 1, the inner cover body 2 moves downwards relative to the outer cover body 1 under the elastic action of the spring, so that the airtight ring is not pushed by the upper limit ring 14 of the outer cover body 1 to be in an elastic restoration shape, the sealing cover does not seal the tank body any more, and the sealing cover can be directly detached from the tank body at the moment.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A sealed can lid, comprising:

the outer cover body is provided with a through hole;

the inner cover body is arranged below the outer cover body and can move towards or away from the outer cover body;

a convex ring is arranged on the outer wall of the inner cover body;

the inner wall of the elastic sealing ring is provided with at least two positioning bosses, and a positioning groove matched with the convex ring is formed between every two adjacent positioning bosses;

the elastic sealing ring is sleeved and fixed on the outer wall of the inner cover body through the convex ring and the positioning groove which are matched;

the bottom end of the linkage shaft is fixedly connected with the inner cover body, and the top end of the linkage shaft movably penetrates through the through hole of the outer cover body;

the poking piece is arranged at the top of the outer cover body and is pivoted to the top end of the linkage shaft;

the distance between the bottom end surface of the shifting piece and the pivot axis of the shifting piece is smaller than the distance between any side surface of the shifting piece and the pivot axis of the shifting piece;

the stirring piece rotates towards the top surface of the outer cover body and is in contact with the top surface of the outer cover body to abut against the top surface of the outer cover body, the inner cover body and the elastic sealing ring are driven to move upwards, so that the inner wall of the elastic sealing ring is in contact with and abuts against the side wall of the outer cover body, the elastic sealing ring is expanded outwards and abuts against the inner wall of the tank body, and the tank cover and the tank body are sealed.

2. The sealed can end of claim 1 wherein said elastomeric seal ring has a depression in its inner wall.

3. The sealed can end of claim 1 wherein said raised ring extends adjacent to the interior of said boss and is provided with a detent.

4. The sealed can end of claim 3, wherein said number of catches is one or more.

5. The sealed can end of claim 1 wherein said elastomeric sealing ring is disposed at an outward inclination toward the outer end of the can body.

6. The sealed can end of claim 5 wherein the outer side wall of the outer cover extends in the direction of the inner cover to form an upper retaining ring which is stepped inwardly relative to the outer side wall of the outer cover, the outer wall of the upper retaining ring abutting the inner wall of the resilient sealing ring.

7. The sealed can end of claim 6 wherein said inner lid includes a bottom panel and a lower retaining ring formed by the edge of said bottom panel extending in a direction toward said outer lid;

the side length or the diameter of the lower limiting ring is smaller than that of the upper limiting ring, and the outer side wall of the lower limiting ring is abutted against the inner side wall of the upper limiting ring when the inner cover body is in a movable state relative to the outer cover body.

8. The sealed can lid of claim 7, wherein the top of the outer lid body is provided with an inner recessed platform, and the through hole and the retainer ring are arranged on the inner recessed platform;

the through holes are formed in two opposite inner side walls of the concave platform;

the number of the linkage shafts is two, and the linkage shafts are arranged corresponding to the through holes;

the poking piece is U-shaped, and two ends of the poking piece are respectively pivoted with the corresponding linkage shafts.

9. The sealed can end of claim 8 including a catch member disposed on said toggle member and a recess disposed on said concave plateau side wall;

the shifting piece is provided with a sliding hole for the lock catch piece to slide, and the sliding hole penetrates through the inner side and the outer side of the shifting piece;

the lock catch piece comprises a sliding button and a locking plate, and one end of the locking plate is connected with the sliding button;

the sliding button is arranged on the inner side of the poking piece, the sliding button slides, the locking plate extends out of the outer side of the poking piece, and the other end of the locking plate enters the groove to realize clamping and stopping matching of the locking piece and the groove.

10. The sealable can end of any of claims 1-9, wherein a spring is disposed between the outer and inner cap bodies;

the outer cover body is provided with a first positioning ring;

the inner cover body is provided with a second positioning ring corresponding to the first positioning ring;

and two ends of the spring are respectively arranged in the first positioning ring and the second positioning ring.

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