CN210913339U

CN210913339U - Easy open can opening device and easy open can

Info

Publication number: CN210913339U
Application number: CN201920882023.8U
Authority: CN
Inventors: 祝浩然; 魏义坤
Original assignee: Shandong Bencaotang Ejiao Products Co ltd; Zhejiang Sci Tech University ZSTU
Current assignee: Shandong Bencaotang Ejiao Products Co ltd; Zhejiang Sci Tech University ZSTU; Zhejiang University of Science and Technology ZUST
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2020-07-03
Anticipated expiration: 2029-06-12

Abstract

The utility model provides a zip-top can opening device, includes the cover, reaches the pulling-on piece that is enclosed by the nick on the cover, this pulling-on piece front end install the pull ring, install between pulling-on piece rear end and the cover and be used for pulling-on piece and cover still continuous connection structure after the nick position breaks off. The utility model provides a take connection structure's easy open can opening device makes pulling-on piece and cover keep being connected through this connection structure to be convenient for retrieve the pulling-on piece.

Description

Easy open can opening device and easy open can

Technical Field

The utility model relates to a zip-top can opening device, especially a take connection structure's zip-top can opening device still relates to a zip-top can with this zip-top can opening device.

Background

Pop cans have been invented by Mikola Kondakow and James Wong since 1951, and are popular because of their simple and practical structural design. The main key part of the pop can is an opening device on the can cover.

Through a long development history, pop-top can opening devices reserved in the market at present can be mainly divided into an outward-opening type pull ring and an embedded pull ring.

The pop-top can adopting the external lifting type structural design is mainly characterized in that a pull ring is pulled outwards and passes through a pull tab which is connected to a can cover and is formed by scores. Therefore, the pull piece can be pulled out to be separated from the can body, but the edge of the pulled pull ring is relatively sharp, so that fingers or clothes are easily cut, and the pull ring falling off is easily abandoned on the roadside, so that certain pollution is inevitably generated to the environment.

The pop can adopting the embedded structure design is mainly characterized in that a pull ring is lifted outwards by fingers, and the other end of the pull ring presses a pull piece formed by scores on a can cover, so that the pull piece is embedded into the can body. At the moment, the pull piece is kept on the can body, so that the problem of the outward-lifting type can be avoided, but the embedded opening device needs to enable the whole pull piece to enter the can body, so that bacteria and dust on the surface of the pull piece are easily brought into drinks, and certain sanitation and safety problems exist. In summary, the conventional pop can opening device mainly has the following problems: (1) the abandoned pull piece causes resource waste and environmental problems; (2) health and hygiene problems may be caused when the pull piece enters the can body; (3) the pull tab edge is sharp and is easily accidentally injured. It is therefore desirable to provide a can opening device capable of solving the above technical problems.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a take connection structure's easy open can opening device makes pulling-on piece and cover keep being connected through this connection structure to the pulling-on piece recycle.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a zip-top can opening device, includes the pulling-on piece that the nick encloses on the cover, and the pull-on piece is installed to this pulling-on piece front end, installs between pulling-on piece rear end and the cover to be used for pulling-on piece and cover still continuous connection structure after the nick position disconnection.

The utility model has the advantages that: a connecting structure is arranged between the rear end of the pull tab and the can lid for keeping the pull tab connected with the can lid after being broken at the nick position, and the pull tab is still connected with the can lid through the connecting structure after being completely broken along the nick. Therefore, the pull piece is prevented from being discarded at will and is convenient to recycle, and the problems of resource waste and environmental pollution are reduced.

Further setting the following steps: the rear end of the pulling-on piece is fixed with a reinforcing part, the connecting structure comprises rotating shafts symmetrically arranged on two sides of the reinforcing part on the pulling-on piece and supporting seats arranged on the tank cover and used for inserting the rotating shafts, and hinge holes for inserting the end parts of the rotating shafts are formed in the supporting seats.

In some embodiments, the connecting structure includes two rotating shafts symmetrically disposed on two sides of the reinforcing member, and a supporting seat disposed on the can lid and used for inserting each rotating shaft, wherein a hinge hole is disposed on the supporting seat, and the rotating shafts are rotatably connected with the hinge hole, so that the pull piece is rotatably connected with the can lid, thereby preventing the pull piece from being discarded at will and facilitating the recovery of the pull piece.

Further setting the following steps: the limiting structure comprises a limiting part which is fixed on the side part of the reinforcing part and rotates along with the rotating shaft, and a limiting bulge which is arranged on the tank cover and is used for limiting the limiting part to freely rotate;

when the limiting part rotates along with the rotating shaft, the surface of the limiting part touches the limiting bulge to form the rotation limitation of the limiting bulge to the limiting part; when the limiting part or the limiting bulge is stressed to deviate, the limiting part rotates to pass through the limiting bulge so as to remove the rotation limitation.

By adopting the technical scheme, the limiting structure for limiting the free rotation of the rotating shaft is arranged. The limiting structure is arranged because the pulling piece can freely rotate around the supporting seat after the pulling piece is completely disconnected with the nick, and the pulling piece is very easy to reversely fall back to block the opening of the can cover when the beverage is poured from the inclined pop can, so that the limiting structure for limiting the free rotation of the rotating shaft is arranged. The limiting structure comprises a limiting part and a limiting bulge, when the limiting part rotates along with the rotating shaft, the limiting bulge is abutted against the limiting part, and the limiting bulge blocks the limiting part from rotating; however, since the tank cover, the stopper projection, or the stopper portion (usually, aluminum) has a certain ductility, when an external force is applied to deflect the stopper portion or the stopper projection in a direction away from each other, the stopper action of the stopper projection is released, and the stopper portion rotates over the stopper projection. In one case, the pull piece is driven to rotate by external force, when the limiting part is abutted against the limiting bulge, the tank cover moves downwards due to certain ductility of the tank cover, the limiting bulge moves downwards along with the tank cover and deviates towards the direction far away from the limiting part, and then the limiting part overcomes the limitation of the limiting bulge to cross the limiting bulge to continue rotating; and the limiting bulge has a blocking effect on the limiting part in a natural state (without external force action). Therefore, the limiting structure limits the rotation of the rotating shaft through the matching of the limiting part and the limiting bulge, so that the problem that the pull piece falls back again to block the opening of the can cover when the beverage is poured from the inclined pop can is avoided.

Further setting the following steps: the surface of the limiting part used for limiting the rotation of the limiting protrusion and/or the surface of the limiting protrusion used for limiting the rotation of the limiting part are/is provided with guide inclined planes.

By adopting the technical scheme, the guide inclined plane is arranged on the limiting part or the limiting bulge and used for guiding the limiting bulge or the limiting part in the rotating process so that the limiting part overcomes the limitation of the limiting bulge. In some cases, the surface of the limiting protrusion is semicircular, and the limiting part rotates along the semicircular surface when the limiting part rotates to pass through the limiting protrusion, so that the process that the limiting part passes through the limiting protrusion is more labor-saving.

The limiting structure comprises a limiting fixture block and a limiting groove, wherein the limiting fixture block is arranged in the hinge hole and protrudes towards the rotating shaft, and the limiting groove is arranged on the peripheral side of the rotating shaft and is used for allowing the limiting fixture block to enter so as to form limiting fit;

when the rotating shaft rotates, the surface of the limiting clamping block is abutted against the peripheral side face of the rotating shaft, and when the limiting groove on the rotating shaft rotates to the position of the limiting clamping block, the limiting clamping block enters the limiting groove and limits the rotating shaft to rotate.

By adopting the technical scheme, the limiting structure for limiting the free rotation of the rotating shaft is arranged. The reason for providing the stopper structure is explained above and will not be repeated here. The limiting structure is arranged between the rotating shaft and the hinge hole, when the rotating shaft rotates, the surface of the limiting clamping block is abutted against the peripheral side face of the rotating shaft, but the normal rotation of the rotating shaft is not influenced; when the rotating shaft limiting groove rotates to be opposite to the limiting fixture block, the limiting fixture block enters the limiting groove and limits the rotating shaft to normally rotate. Therefore, the limiting structure of the scheme is matched with the limiting groove through the limiting clamping block, the rotating shaft is limited to rotate freely, the problem that the pull piece falls back again to block the opening of the can cover when the beverage is poured from the inclined pop can be avoided, the pull piece is limited by the limiting structure in the rotating process, and the pull piece can be kept at a fixed position to avoid hindering the drinking of the beverage.

The rear end of the pulling piece is fixed with a reinforcing part, the connecting structure comprises torsion pieces which are symmetrically arranged on two sides of the reinforcing part and a supporting seat which is arranged on the tank cover and used for fixing the torsion pieces, and the torsion pieces are made of flexible materials and can be twisted by matching with the rotation of the pulling piece.

In some embodiments, the connecting structure includes torsion pieces symmetrically disposed at both sides of the reinforcing member, and a support seat disposed on the can lid and to which each torsion piece is fixed. Wherein the twisting tab is a flexible material known in the art, such as an aluminum tab, which twists upon itself as the tab is rotated to engage and open the opening and maintain the tab attached to the can end after the tab is completely disconnected from the score. The rear end of the pull tab is provided with a reinforcement member on which the torsion tab is provided, the function of which has been explained above and will not be repeated here.

Further setting the following steps: the rotating shaft or the twisting sheet is at a certain distance from the front end edge and the rear end edge of the reinforcing part, and the distance from the rotating shaft or the twisting sheet to the rear end edge of the pull tab is less than 2 mm.

The rotating shaft or the twisting piece is arranged at a distance from the front end edge and the rear end edge of the reinforcing part, i.e. the rotating shaft or the twisting piece is not arranged at the front end edge and the rear end edge of the reinforcing part. This is because, since the reinforcing member on the pull-tab forms a lever structure in cooperation with the rotary shaft or the torsion piece as a fulcrum of the rotation of the reinforcing member, the reinforcing member rotates around the rotary shaft or the torsion piece; when the tab at the rear end of the opening is opened, an external force acts on the front end of the reinforcing member to move it upward (i.e., outward of the can lid), and the reinforcing member rotates about the rotary shaft due to the lever structure, so that the rear end of the reinforcing member simultaneously moves downward (i.e., inward of the can lid). Therefore, if the rotating shaft is located at the front end edge of the reinforcing member, an external force cannot act on the front end of the reinforcing member to move it upward; if the pivot is located at the rear edge of the reinforcing member, it may not be possible to completely disconnect the tab from the score. In addition, the distance between the rotating shaft or the twisting sheet and the rear end edge of the pull tab is less than 2mm, so that the distance between the rotating shaft or the twisting sheet and the rear end edge of the pull tab is reduced, the part entering the can body is reduced, and bacteria and dust on the pull tab are prevented from entering the can body.

Further setting the following steps: the reinforcing part is in a cross shape and consists of a transverse rod and a longitudinal rod perpendicular to the transverse rod, wherein the transverse rod is positioned on a connecting line of the front end and the rear end of the pull piece, the reinforcing part is fixed on the pull piece through a rivet, and the rotating shaft or the twisting piece is positioned at the end part of the longitudinal rod.

By adopting the technical scheme, the reinforcing part is arranged into a cross shape, the longitudinal rod extends outwards along two sides of the transverse rod, and the rotating shaft or the torsion piece is arranged at the end part of the longitudinal rod so as to enhance the action stability of the reinforcing part. Further, the reinforcement member is fixed to the tab by rivets, and such a rivet fixing method is well known in the art and can be easily known to those skilled in the art.

The utility model also provides a zip-top can, including a jar body, still include the utility model discloses a zip-top can opening device.

The utility model has the advantages that: the pop can comprises the pop can opening device, and a connecting structure which is used for enabling the pull piece to be still connected with the can cover after the pull piece is disconnected at the nick position is arranged between the rear end of the pull piece of the pop can opening device and the can cover, so that after the pull piece is completely disconnected along the nick, the pull piece is still connected with the can cover through the connecting structure, and therefore the pull piece is convenient to recycle and the environment pollution is avoided. Secondly, the distance between the rotating shaft or the twisting sheet and the rear end edge of the pull tab reduces the part entering the can body, so as to prevent bacteria and dust on the pull tab from entering the can body. Therefore, the utility model discloses a zip-top can makes pulling-on piece and cover remain throughout to be connected through connection structure to in retrieve the pulling-on piece, reduce wasting of resources and polluted environment problem.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

fig. 2 is a schematic plan view of a can opening device according to a first embodiment of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a schematic structural diagram of a pull tab according to a first embodiment of the present invention;

fig. 5 is a schematic cross-sectional view of an opening device for a pop can according to a first embodiment of the present invention, wherein a limiting portion is located on one side of a protrusion;

FIG. 6 is an enlarged view of portion B of FIG. 5;

fig. 7 is a schematic sectional view of an opening device for a pop can according to a first embodiment of the present invention, wherein a limiting portion is located on the other side of a protrusion;

FIG. 8 is an enlarged view of the portion C of FIG. 7;

fig. 9 is a schematic partial sectional view of a pop can opening device according to a second embodiment of the present invention

Fig. 10 is a schematic structural view of a pull tab according to a third embodiment of the present invention;

the pop can opening device 1, a pull tab 11, a pull ring 12, a mounting position 121, a connecting structure 13, a reinforcing part 131, a transverse rod 131A, a longitudinal rod 131B, a rotating shaft 132, a supporting seat 133, a limiting part 134, a guide inclined plane 135, a twisting sheet 136, a limiting fixture block 137, a limiting groove 138, a hinge hole 139, a limiting bulge 14, a can cover 15, an opening 16, a can body 2, an indentation 3 and a rivet 5.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

as shown in fig. 2, the can opening device 1 described herein includes a can lid 15, and a tab 11 surrounded by a score 3 on the can lid 15, wherein a front end of the tab 11 refers to an end (tab right end in fig. 2) close to the attachment position 121 of the tab 12, and a rear end of the tab 11 refers to an end (tab left end in fig. 2) away from the attachment position 121 of the tab 12. Thus, when the tab 11 is torn, the tab 11 is first broken from the score at the mounting location 121 and then gradually broken from the front end to the rear end. Similarly, the front and rear ends of the reinforcing member 131 are defined as the pull tab 11, and one end of the reinforcing member 131 near the attachment position 121 of the tab 12 is a front end and the other end opposite to the front end is a rear end.

First embodiment, as shown in fig. 1 to 8, a can includes a can body 2 and a can opening device 1. The can opening device 1 includes a can lid 15 and a tab 11 formed by a score 3 on the can lid 15, wherein a tab 12 is attached to a front end of the tab 11 by a caulking portion, and an attachment position 121 of the tab 12 is located at a front end of the tab 11 and closely attached to an edge of the tab 11. Wherein the riveting member may be a rivet. In addition, the mounting location 121 of the tab 12 is as close as possible to the edge of the tab 11 so that there is as little ingress of internal parts of the can body as possible, and ingress of bacteria and dirt on the tab 11 into the can body is avoided as much as possible.

A reinforcing member 131 is fixedly provided at the rear end of the pull-tab 11, and the reinforcing member 131 is fixed to the pull-tab 11 by a rivet 5. The reinforcing member 131 is cross-shaped and includes a transverse bar 131A and a longitudinal bar 131B perpendicular to the transverse bar 131A, the transverse bar 131A is located at a line connecting the front end and the rear end of the pull tab 11, and the longitudinal bar 131B extends outwardly along both sides of the transverse bar 131A to enhance the stability of the reinforcing member 131.

A connecting structure 13 for connecting the tab 11 and the can lid 15 after the tab 11 and the can lid 15 are completely cut off at the nick 3 is installed between the rear end of the tab 11 and the can lid 15, and the connecting structure 13 enables the tab 11 to be connected with the can lid 15 after the tab 11 and the can lid are completely cut off at the nick 3, so that the tab 11 can be recycled, and resource waste and environmental pollution are reduced.

The connecting structure 13 includes a rotating shaft 132 symmetrically disposed on both sides of the reinforcing member 131, and a supporting seat 133 disposed on the tank cover 15 and allowing an end of the rotating shaft 132 to be inserted therein, wherein one end of the rotating shaft 132 is inserted into an end of the longitudinal rod 131B of the reinforcing member 131 and is rotatably engaged with the longitudinal rod 131B; a hinge hole 139 is provided on the support base 133, and the other end of the hinge 132 is inserted into the hinge hole 139, and the hinge 132 is rotatably connected to the hinge hole 139, so that the tab 11 remains connected to the can lid 15 after being completely broken along the score, and can freely rotate relative to the support base 133.

In order to prevent the pull-tab 11 from falling back reversely to block the can lid opening 16 when the can is tilted to pour the beverage, the can opening device 1 is further provided with a limiting structure for limiting the rotation of the rotating shaft 132, the limiting structure comprising a limiting portion 134 fixed on the side portion of the reinforcing member 131 and rotating along with the rotating shaft 132, and a limiting protrusion 14 arranged on the can lid 15 and used for limiting the free rotation of the limiting portion 134. In the process that the limiting part 134 rotates along with the rotating shaft 132, when the limiting bulge 14 is in contact with the limiting part 134, the limiting bulge 14 blocks the limiting part 134 from rotating; however, since the can cover 15 (usually made of aluminum) has a certain ductility, the can cover 15 is depressed or deflected downward by an external force, that is, the position-restricting protrusion 14 is moved downward, so that the position-restricting protrusion 14 is deflected in a direction away from the position-restricting portion 134, and the blocking effect of the position-restricting protrusion 14 is released, so that the position-restricting portion 134 is rotated over the position-restricting protrusion 14. In order to save more labor when the blocking effect of the limiting protrusion 14 is removed, a guide inclined surface 135 is arranged on the surface of the limiting portion 134 for limiting the rotation of the limiting protrusion 14, the guide inclined surface 135 is in a circular arc shape, and when the limiting portion 134 rotates over the limiting protrusion 14, the limiting protrusion 14 slides along the circular arc surface, so that the limiting portion 134 overcomes the limitation of the limiting protrusion 14. The guide slope 135 may be a general slope. In some cases, a guide slope 135 may be further provided on a surface of the stopper protrusion 14 for restricting rotation of the stopper portion, for example, the surface of the stopper protrusion 14 may have a semicircular shape along which the stopper portion 134 rotates when the stopper portion 134 rotates over the stopper protrusion 14, thereby saving labor in the process of the stopper portion 134 crossing over the stopper protrusion 14.

In order to reduce the portion of the tab 11 that enters the can body, the pivot 132 is spaced 2mm from the rear end edge of the tab 11 to minimize the entry of bacteria and dust on the tab 11 into the can body. In some embodiments, the pivot 132 is 1mm from the rear edge of the tab 11.

In use, the tab 11 is first broken at the nicked position by the tab 12, and the tab 11 is gradually broken in the direction from the front end toward the rear end. Since the reinforcing member 131 of the tab 11 forms a lever structure in cooperation with the rotating shaft, wherein the rotating shaft 132 serves as a fulcrum for the rotation of the reinforcing member 131, and the reinforcing member 131 rotates about the rotating shaft 132, an external force acts on the front end of the reinforcing member 131 to move it upward during the process of disconnecting the rear end of the tab 11 from the score 3, and due to the lever structure, the reinforcing member 131 rotates about the rotating shaft 132, so that the rear end of the reinforcing member 131 moves downward at the same time to jack the connection between the tab 11 and the can lid 15. After the pull tab 11 is completely broken at the nick 3, the pull tab 11 can freely rotate around the supporting seat 133, by means of external force, the limiting part 134 of the pull tab 11 butts against the limiting protrusion 14, the limiting protrusion 14 is forced to shift towards the direction far away from the limiting part 134, and then the limiting part 134 overcomes the limitation of the limiting protrusion 14 and goes over the limiting protrusion 14 to continue rotating; the limiting bulge 14 can block the reverse rotation of the limiting part 134 under the action of no external force to prevent the pull tab 11 from rotating reversely, so that the pull tab 11 can be prevented from falling back to block the opening 16 when the beverage is poured from the pop can in an inclined state, and normal drinking is not influenced. In conclusion, the pop can opening device is very convenient and reasonable to use, the pull piece 11 is convenient to recycle, and the problems of resource waste and environmental pollution are reduced.

The second embodiment is mainly different from the first embodiment in that the limiting structure includes a limiting block 137 disposed in the hinge hole 139 and protruding toward the rotating shaft 132, and a limiting groove 138 disposed on the peripheral side of the rotating shaft 132 for the limiting block 137 to enter to form a limiting fit, as shown in fig. 9. When the rotating shaft 132 rotates, the limiting fixture block 137 is indicated to be abutted against the peripheral side surface of the rotating shaft 132, but the abutting does not influence the normal rotation of the rotating shaft 132; when the limiting groove 138 of the rotating shaft 132 rotates to the position of the limiting fixture block 137, the limiting fixture block 137 is clamped into the limiting groove 138, so that the limiting groove 138 and the limiting fixture block 137 form a limiting fit, and the rotating shaft 132 is further limited from rotating normally. The limiting structure in this embodiment, through the mutual cooperation between the limiting fixture block 137 and the limiting groove 138, solves the problem that the pull tab 11 rotates randomly after being separated from the can cover 15, ensures that the pull tab 11 is limited by the limiting structure during the rotation process, and can be kept at a fixed position to avoid hindering drinking.

Third embodiment, as shown in fig. 10, the main difference from the first embodiment is the connecting structure 13, the connecting structure 13 includes torsion pieces 136 symmetrically disposed at both sides of the pulling and reinforcing member 131, and a supporting seat 133 disposed on the can lid 15 for fixing each torsion piece 136, and the torsion pieces 136 are flexible aluminum sheets. As the tab 11 is rotated, the torsion tab 136 twists upon itself to engage and open the opening 16, but at the same time, maintain the tab 11 attached to the can lid 15. In addition, since the twist piece 136 cannot automatically restore its original shape without applying an external force, the position of the tab 11 coupled to the twist piece 136 is fixed accordingly. Therefore, when the beverage is poured from the tilted can, the pull tab 11 is always connected to the can lid 15 and does not fall freely to block the opening 16.

Claims

1. An opening device of pop-top can comprises a can cover and a pull tab surrounded by a nick on the can cover, the front end of the pull tab is provided with a pull ring, characterized in that a connecting structure for connecting the pull tab and the can cover after the pull tab and the can cover are disconnected at the nick is arranged between the rear end of the pull tab and the can cover,

the rear end of the pulling piece is fixedly provided with a reinforcing part, the connecting structure comprises rotating shafts symmetrically arranged on two sides of the reinforcing part and a supporting seat arranged on the tank cover and used for inserting the end part of each rotating shaft, and the supporting seat is provided with a hinge hole used for inserting the end part of each rotating shaft; or

The rear end of the pull piece is fixedly provided with a reinforcing part, the connecting structure comprises torsion pieces symmetrically arranged on two sides of the reinforcing part and a supporting seat arranged on the tank cover and used for fixing the torsion pieces, and the torsion pieces are made of flexible materials and can be twisted by matching with the rotation of the pull piece.

2. The can opener according to claim 1, further comprising a limiting structure for limiting the rotation of the rotating shaft, the limiting structure comprising a limiting portion fixed to a side portion of the reinforcing member and rotating with the rotating shaft, and a limiting protrusion disposed on the can lid and limiting the free rotation of the limiting portion;

3. The opening device of claim 2, wherein a surface of the stopper portion for restricting rotation of the stopper protrusion and/or a surface of the stopper protrusion for restricting rotation of the stopper portion is provided with a guide slope.

4. The can opener according to claim 1, further comprising a limiting structure for limiting the rotation of the rotating shaft, wherein the limiting structure comprises a limiting fixture block disposed in the hinge hole and protruding toward the rotating shaft, and a limiting groove disposed on the periphery of the rotating shaft for the limiting fixture block to enter to form a limiting fit;

5. A can opening device according to claim 1, wherein said rotation shaft or torsion piece is spaced from the front and rear edges of the reinforcing member, and the distance from the rotation shaft or torsion piece to the rear edge of the pull-tab is less than 2 mm.

6. A can opening device according to any one of claims 1 to 4, wherein the reinforcing member is formed in a cross shape and is composed of a transverse bar and a longitudinal bar perpendicular to the transverse bar, wherein the transverse bar is located on a line connecting a front end and a rear end of the pull-tab, and the reinforcing member is fixed to the pull-tab by a rivet, and the rotary shaft or the torsion bar is located at an end of the longitudinal bar.

7. A can comprising a can body, characterized in that the can further comprises a can opening device according to any one of claims 1 to 6.