CN211970263U

CN211970263U - Packaging tin with novel two-layer structure safety cover

Info

Publication number: CN211970263U
Application number: CN202020501945.2U
Authority: CN
Inventors: 张筱
Original assignee: Dongguan Jingli Can Co ltd
Current assignee: Dongguan Jingli Can Co ltd
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2020-11-20
Anticipated expiration: 2030-04-08

Abstract

The utility model relates to a packing jar of novel bilayer structure safety lid of utensil relates to the tinplate packing carton that adopts the safety lid. Comprises a can cover and a can body; the can body comprises a can body threaded opening; the tank cover comprises an outer cover and an inner cover, the outer cover is provided with an end edge which is inward curled, the inner cover comprises an inner cover threaded opening, the inner cover is embedded in a region surrounded by the end edge of the outer cover, and the inner cover can rotate or move up and down in the region surrounded by the end edge of the outer cover; and the inner cover is provided with a circumferential wall which is distributed along the circumference and positioned at the upper part of the threaded opening of the inner cover, and the outer surface of the circumferential wall is closely attached to the inner surface of the outer cover. This technical scheme packing jar safety cap structure is with the help of enclosing cover structure reinforcement inner cup for the life of inner cup very improves, fully guarantees the life of cover, has prolonged the life of packing jar widely.

Description

Packaging tin with novel two-layer structure safety cover

Technical Field

The utility model relates to a packing jar of novel bilayer structure safety lid of utensil relates to a three-piece jar formula tinplate can box, especially adopts the tinplate packing carton of safety lid.

Background

The existing packaging tin with the cover is generally characterized in that the can cover is connected with the can body and the can mouth through threads to seal the can mouth, the can cover can be opened or closed by directly screwing the can cover, and the operation is simple and convenient. Due to the simple operation, once the can is used for containing things which may bring danger or disadvantages, such as medicines, if people with curiosity, no safety consciousness or poor safety consciousness, such as children, are met, the can is opened by mistake, danger may be brought to the children, or serious things may happen. Therefore, a safety cap has been designed. The safety cap in the prior art generally comprises an inner cap and an outer cap, wherein the inner cap can move up and down in the outer cap, the inner cap and the outer cap are provided with concave-convex clutch structures, and the inner cap is provided with threads matched with the threads of a can opening of a can body. When the can mouth is closed, the outer cover is rotated clockwise, the concave-convex mechanisms of the outer cover and the inner cover enable the outer cover and the inner cover to rotate together, the threads of the inner cover are meshed with the threads of the can mouth of the can body, and the inner cover closes the can mouth of the can body; when opening the cover, if only anticlockwise rotation enclosing cover, enclosing cover and inner cup concave-convex structure be enclosing cover and inner cup separation this moment, and the enclosing cover will idle running, and the inner cup is unable to open, if press to the inner cup with the enclosing cover hard, because the effect enclosing cover of external force makes enclosing cover and inner cup concave-convex structure rotate together, and the inner cup just can be opened with the enclosing cover is rotatory together this moment.

In the safety cap of the prior art, in order to smoothly separate and rotate the inner cap and the outer cap when the inner cap and the outer cap are opened or closed, and in addition, due to the technical problems, a gap between the inner cap and the outer cap is very large. So, because the inner cup enclosing cover generally all is made by tinplate, this kind of material elasticity is relatively poor, and after the safety lid used for a long time, the phenomenon that the inner cup can not tighten or the inner cup idled will appear becoming flexible between inner cup and the can body bottleneck, leads to whole packing jar can't use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel packing jar of bilayer structure safety cover, this packing jar safety cover structure is with the help of enclosing cover structure reinforcement inner cup for the life of inner cup is very improved, fully guarantees the life of cover, has prolonged the life of packing jar widely.

The utility model discloses technical scheme: a packaging can with a novel two-layer structure safety cover comprises a can cover and a can body; the can body comprises a can body threaded opening; the tank cover comprises an outer cover and an inner cover, the outer cover is provided with an end edge which is curled inwards, the inner cover comprises an inner cover threaded opening, the inner cover is embedded in a region surrounded by the end edge of the outer cover, the height of the inner cover is smaller than that of the outer cover, and the inner cover can rotate or move up and down in the region surrounded by the end edge of the outer cover; concave-convex structures which can be clamped and matched are arranged on the outer cover and the inner cover; the convex-concave structure enables the inner cover and the outer cover to rotate together when the inner cover is contacted with the outer cover, and the convex-concave structure enables the inner cover and the outer cover to be separated when the inner cover is separated from the outer cover; it is characterized in that the inner cover is provided with a circumferential wall which is distributed along the circumference and positioned at the upper part of the thread opening of the inner cover, and the outer surface of the circumferential wall is closely attached to the inner surface of the outer cover.

The packaging tin with the novel two-layer structure safety cover is characterized in that an annular groove which is distributed along the circumference and is provided with an inward opening is formed in the upper part of the threaded opening of the inner cover, and the annular wall is the bottom of the annular groove.

The annular wall of the packaging can with the novel two-layer structure safety cap is connected with the uppermost part of the threaded opening of the inner cap through threads.

The utility model relates to a packing jar of novel bilayer structure safety cover of utensil, its safety cover structure is with the help of enclosing cover reinforcement inner cup, has guaranteed closely all the time cooperation of inner cup screw thread mouth and can body screw thread mouth for the life of inner cup very improves, fully guarantees the life of cover, has prolonged the life of packing jar widely.

Drawings

Fig. 1 is an assembly schematic diagram of the packaging can with the novel two-layer structure safety cover of the present invention.

Fig. 2 is a schematic diagram of the screw cap of the utility model when the inner cap of the packaging can is matched with the outer cap in contact with the convex-concave structure.

Fig. 3 is a partially enlarged view of fig. 2.

Fig. 4 is a schematic view of the convex-concave structure of the novel two-layer structure safety cap of the present invention when the inner cap and the outer cap are separated from each other.

Detailed Description

The present invention will be described in further detail with reference to the following examples and accompanying drawings.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, an embodiment of a packaging can with a novel two-layer structure safety cover of the present invention is shown. Comprises a can cover 1 and a can body 2; the can body 2 comprises a can body threaded opening 21; the can cover 1 comprises an outer cover 11 and an inner cover 12, wherein the outer cover 11 is provided with an end edge 111 which is inward curled and sealed, the inner cover 12 comprises an inner cover threaded opening 121, the inner cover 12 is embedded in a region surrounded by the end edge of the outer cover 11, the height of the inner cover 12 is smaller than that of the outer cover 11, and the inner cover 12 can rotate or move up and down in the region surrounded by the end edge 111 of the outer cover; the concave-convex structure 3 which can be clamped and matched is arranged on the outer cover 11 and the inner cover 12; the male and female structures 3 allow the inner cap 12 and the outer cap 11 to be rotated together when the inner cap 12 is in contact with the outer cap 11, and the male and female structures 3 allow the inner cap 12 to be separated from the outer cap 11 when the inner cap 12 is separated from the outer cap 11. A circumferential wall 122 is disposed on the inner cap 12 above the inner cap threaded opening 121, preferably the circumferential wall 122 is in threaded engagement with the uppermost portion of the inner cap threaded opening 121. The outer surface of the annular wall 122 conforms closely to the inner surface of the outer cover 11. Thus, when the inner cap screw thread opening 121 is screwed tightly with the can body screw thread opening 21, the outward tension of the inner cap screw thread opening 121 forces the annular wall 122 of the inner cap screw thread opening 121 to press against the inner surface of the outer cap 11, and at this time, the outer cap 11 gives a reaction force to the annular wall 122 of the inner cap screw thread opening 121, so that the inner cap screw thread opening 121 is tightened. So, the safety cap structure guarantees the tight fit all the time of inner cup screw thread mouth and can body screw thread mouth with the help of enclosing cover reinforcement inner cup for the life of inner cup very improves, fully guarantees the life of cover, has prolonged the life of packing jar widely.

In a further mode, the inner cover is provided with an annular groove which is distributed along the circumference and is opened inwards at the upper part of the threaded opening of the inner cover, and the annular wall is the groove bottom of the annular groove. Adopt this kind of mode both can strengthen inner cup structural strength and can realize the utility model discloses the purpose.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.

Claims

1. A packaging can with a novel two-layer structure safety cover comprises a can cover and a can body; the can body comprises a can body threaded opening; the tank cover comprises an outer cover and an inner cover, the outer cover is provided with an end edge which is curled inwards, the inner cover comprises an inner cover threaded opening, the inner cover is embedded in a region surrounded by the end edge of the outer cover, the height of the inner cover is smaller than that of the outer cover, and the inner cover can rotate or move up and down in the region surrounded by the end edge of the outer cover; concave-convex structures which can be clamped and matched are arranged on the outer cover and the inner cover; the convex-concave structure enables the inner cover and the outer cover to rotate together when the inner cover is contacted with the outer cover, and the convex-concave structure enables the inner cover and the outer cover to be separated when the inner cover is separated from the outer cover; it is characterized in that the inner cover is provided with a circumferential wall which is distributed along the circumference and positioned at the upper part of the thread opening of the inner cover, and the outer surface of the circumferential wall is closely attached to the inner surface of the outer cover.

2. The packaging can with two-layer structure as claimed in claim 1, wherein the inner cap has a circumferential ring groove with inward opening at the upper part of the threaded opening of the inner cap, and the ring wall is the bottom of the ring groove.

3. The packaging can with the novel two-layer structure safety cover as claimed in claim 1 or 2, characterized in that the ring wall is in threaded connection with the uppermost part of the threaded opening of the inner cover.