Scratch-proof aluminum alloy screw cap

Abstract

The utility model provides a scratch-proof aluminum alloy screw cap which comprises a cap body and a safety ring, the lower edge of the cap body is provided with a protruding ring protruding outwards in the circumferential direction, the safety ring is connected to the lower edge of the protruding ring, and a fracture line is arranged at the joint of the safety ring and the protruding ring. And a matched thread part is formed on the side wall of the cover body in the spinning process of the bottle opening. The convex ring protruding outwards is arranged on the lower edge of the cover body, and the fracture line is arranged on the inner edge of the bottom of the convex ring, so that after the cover body and the safety ring are unscrewed and separated, the convex ring can play a role in shielding a gap generated by cracking of the fracture line, a user cannot be scratched, and the safety of a product is improved; meanwhile, the convex ring can further improve the structural strength of the cover body, the cover body is prevented from being deformed after being unscrewed, and the cover body can be repeatedly used.

Description

TECHNICAL FIELD

[0001] The utility model relates to bottle cap technical field, especially a kind of anti-scratch aluminum alloy screw cap. BACKGROUND

[0002] Aluminum alloy screw cap is currently the common packaging form of bottle packaging, especially more widely used in the field of beverages. Under normal circumstances, aluminum alloy screw cap is composed of cap body and safety ring, and fracture line is arranged between cap body and safety ring. When opening, safety ring and cap body are separated by cutting through fracture line, so as to intuitively show whether the bottle cap is opened, and the security of product is guaranteed.

[0003] However, this kind of aluminum alloy screw cap has great defects: in the process of screwing bottle cap or after unscrewing bottle cap, the cracking of fracture line can produce sharp metal edge, which is easy to scratch the user, and reduces the safety of product. And, because the vicinity of fracture line is weak, bottle cap is easy to deform after being unscrewed, and it is difficult to screw back to bottle opening again, so it cannot be reused. SUMMARY

[0004] In view of the above-mentioned defects of the prior art, the purpose of the utility model is to provide an anti-scratch aluminum alloy screw cap to solve the problem that the sharp edge produced after the aluminum alloy screw cap is unscrewed is easy to scratch the user.

[0005] To achieve the above-mentioned purpose and other related purposes, the utility model provides an anti-scratch aluminum alloy screw cap, which comprises a cap body and a safety ring. The lower edge of the cap body is provided with a convex ring protruding outward in the circumferential direction. The safety ring is connected to the lower edge of the convex ring. A fracture line is arranged at the connection between the safety ring and the convex ring. The sidewall of the cap body is formed with a matching thread part during the process of being screwed with the bottle opening.

[0006] In an embodiment of the utility model, the fracture line is composed of a plurality of notches, and all the notches are uniformly distributed along the circumferential direction of the lower edge of the convex ring.

[0007] In an embodiment of the utility model, the notches are arranged obliquely upward.

[0008] In an embodiment of the utility model, the maximum diameter of the convex ring is greater than the diameter of the safety ring.

[0009] In an embodiment of the utility model, the convex ring comprises an upper arc-shaped part and a lower arc-shaped part which are connected in an arc shape. The included angle of the upper arc-shaped part with respect to the vertical direction is smaller than the included angle of the lower arc-shaped part with respect to the vertical direction. The fracture line is located inside the bottom of the lower arc-shaped part.

[0010] In an embodiment of the utility model, the lower edge of the safety ring is provided with a step portion extending inwardly in the circumferential direction, and the step portion is matched with the bottle neck.

[0011] In an embodiment of the utility model, the cover body and the safety ring are integrally formed.

[0012] In an embodiment of the utility model, the cover body and the safety ring are made of aluminum alloy material.

[0013] In an embodiment of the utility model, the top inner wall of the cover body is provided with a sealing ring extending downwardly, and the sealing ring is sealingly matched with the inner wall of the bottle mouth.

[0014] In an embodiment of the utility model, the upper end outer wall of the cover body is provided with an anti-skid protrusion.

[0015] As described above, the utility model discloses a kind of scratchproof aluminum alloy screw cap, with following beneficial effects:

[0016] 1, the utility model discloses a convex ring is arranged to the lower edge of cover body outwardly protruding, and fracture line is arranged in the bottom inner edge of convex ring, so that cover body and safety ring are separated after being unscrewed, convex ring can play shielding effect to the crack produced by fracture line cracking, will not cause scratch to user, increase the security of product;Meanwhile, convex ring can also increase the structural strength of cover body, avoid that cover body is deformed after being unscrewed, so that cover body can be repeatedly used.

[0017] 2, the fracture line of the utility model is composed of multiple incisions, and incision is arranged upwardly inclined, so that the direction of force generated when incision cuts is inclined upwardly inwardly, so that the crack produced by fracture line cracking is located in the inside of convex ring.

[0018] 3, the utility model discloses the step portion extending inwardly in the lower edge of safety ring, so that safety ring can be held tightly to bottle neck by step portion, avoid that safety ring is taken up by cover body during screwing process and fracture line fails to crack. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the structure schematic view of the scratchproof aluminum alloy screw cap without pressing cover in embodiment 1 disclosed by the utility model.

[0020] Figure 2 It is the structure schematic view of the scratchproof aluminum alloy screw cap pressed in bottle mouth in embodiment 1 disclosed by the utility model.

[0021] Figure 3 It is the sectional view schematic view of the scratchproof aluminum alloy screw cap pressed in bottle mouth in embodiment 1 disclosed by the utility model.

[0022] Figure 4 It is Figure 3An enlarged schematic view at A.

[0023] Figure 5 A structure schematic view of the anti-scratch aluminum alloy screw cap in the unscrewed state disclosed in the embodiment 1 of the utility model.

[0024] Figure 6 A sectional view schematic view of the anti-scratch aluminum alloy screw cap in the unscrewed state disclosed in the embodiment 1 of the utility model.

[0025] Figure 7 A structure schematic view of the anti-scratch aluminum alloy screw cap in the unscrewed state disclosed in the embodiment 1 of the utility model.

[0026] Figure 8 A structure schematic view of the anti-scratch aluminum alloy screw cap in the unscrewed state disclosed in the embodiment 1 of the utility model.

[0027] Figure 9 A structure schematic view of the anti-scratch aluminum alloy screw cap in the unscrewed state disclosed in the embodiment 1 of the utility model.

[0028] Figure 10 A structure schematic view of the anti-scratch aluminum alloy screw cap in the unscrewed state disclosed in the embodiment 1 of the utility model.

[0029] Element number explanation

[0030] 1, cover body; 11, convex ring; 111, upper arc-shaped part; 112, lower arc-shaped part; 12, threaded part; 13, sealing ring; 14, anti-skid protrusion; 2, safety ring; 21, step part; 3, fracture line; 31, cutout. Specific implementation

[0031] The implementation of the utility model will be described by specific embodiments below, and those skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0032] Embodiment 1

[0033] Please refer to Figures 1-6 , the embodiment provides an anti-scratch aluminum alloy screw cap, which comprises a cover body 1 and a safety ring 2, and the cover body 1 and the safety ring 2 are integrally processed and formed from an aluminum alloy sheet. Wherein, the lower edge of the cover body 1 is provided with a convex ring 11 which protrudes outward in the circumferential direction, the safety ring 2 is connected to the lower edge of the convex ring 11, the connection part of the safety ring 2 and the convex ring 11 is provided with a fracture line 3, the fracture line 3 is composed of a plurality of cutouts 31, and all the cutouts 31 are uniformly distributed along the lower edge of the convex ring 11 in the circumferential direction; the sidewall of the cover body 1 is provided with a threaded part 12 which is matched with the screwing of the bottle mouth.

[0034] The circumferential arrangement of the fracture line 3 can ensure that the cover 1 and the safety ring 2 are broken in a horizontal direction when being unscrewed; after being unscrewed, the cover 1 and the safety ring 2 are in two parts, and the cover 1 can still be connected with the bottle mouth by using the threaded part 12, so as to be reused, which is more convenient and environmentally friendly. After being unscrewed, the convex ring 11 can shield the crack caused by the fracture of the fracture line 3, so as to avoid scratching the user and increase the safety of the product and improve the user experience. At the same time, the convex ring 11 can also increase the structural strength of the cover 1, so as to avoid deformation of the cover 1 after being unscrewed.

[0035] In the embodiment, the cut 31 is arranged upwardly and obliquely, so that the direction of the acting force generated when the cut 31 is cut is obliquely upward, and thus the crack caused by the fracture of the fracture line 3 is located on the inner side of the convex ring 11.

[0036] In the embodiment, the maximum diameter of the convex ring 11 is greater than the diameter of the safety ring 2.

[0037] In the embodiment, referring to Figure 4 , the convex ring 11 comprises an upper arc-shaped part 111 and a lower arc-shaped part 112 which are connected in an arc shape, and the included angle of the upper arc-shaped part 111 with respect to the vertical direction is smaller than the included angle of the lower arc-shaped part 112 with respect to the vertical direction. The shape of the convex ring 11 is designed in this way, so that the cross section of the convex ring 11 presents a roof shape, and the structural strength is higher; and the stress point when being fractured is located in the corner of the convex ring 11, so as to better shield the crack caused by the fracture of the fracture line 3 and reduce the risk of scratching.

[0038] In the embodiment, the lower edge of the safety ring 2 is provided with a step part 21 which extends inwardly in the circumferential direction, and the step part 21 is matched with the bottle neck. The step part 21 is formed at the bottom of the safety ring 2, so that the safety ring 2 can tightly hold the bottle neck by the step part 21, and the cover 1 can not lift the safety ring 2 in the process of being screwed and the fracture line 3 cannot be fractured.

[0039] In the embodiment, the top inner wall of the cover 1 is provided with a sealing ring 13 which extends downward, and the sealing ring 13 is sealingly matched with the inner wall of the bottle mouth, so as to effectively prevent the cover 1 from being breathable or permeable to water.

[0040] In the embodiment, the outer wall of the upper end of the cover 1 is provided with an anti-skid protrusion 14, which is beneficial to the user to hold and screw more labor-saving.

[0041] Embodiment 2

[0042] Please refer to Figures 7-8 , the embodiment provides a scratch-proof aluminum alloy screw cap, which is different from the embodiment 1 only in that the scratch-proof aluminum alloy screw cap is a long aluminum cap, and the long aluminum cap comprises a cover 1 and a base 2 (equivalent to a safety ring), and the base has a large length in the vertical direction.

[0043] Embodiment 3

[0044] Please refer to Figures 9-10 The embodiment provides a scratch-proof aluminum alloy screw cap, and compared with the embodiment 1, the difference is that the scratch-proof aluminum alloy screw cap is a long aluminum cap, the cap body 1 has a large length in the vertical direction, the threaded part 12 is arranged at the top end of the cap body 1, and the convex ring 11 is arranged at the bottom of the cap body 1.

[0045] In conclusion, the convex ring is arranged on the lower edge of the cap body and protrudes outward, and the fracture line is arranged on the inner edge of the bottom of the convex ring, so that after the cap body and the safety ring are separated by being unscrewed, the convex ring can shield the crack caused by the fracture line, the user is not scratched, and the safety of the product is improved; meanwhile, the convex ring can also increase the structural strength of the cap body, avoids deformation of the cap body after being unscrewed, and enables the cap body to be repeatedly used. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

[0046] In the specification, terms such as "upper", "lower", "left", "right", "front", "back", "middle" and "one" are only used for clear description, and are not used to limit the scope of the utility model, and the change or adjustment of the relative relationship is also regarded as the scope of the utility model without substantial change of the technical content.

[0047] The above embodiment only exemplarily illustrates the principle and effect of the utility model, and is not used to limit the utility model. All equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A scratch resistant aluminum alloy spin cap, characterized by, The cap body is provided with a convex ring outwardly protruding along the circumferential direction at the lower edge thereof, and the safety ring is connected to the lower edge of the convex ring and provided with a fracture line at the connection part with the convex ring; the sidewall of the cap body is formed with a matched thread part during the process of rotary pressing with the bottle mouth.

2. The scratch resistant aluminum alloy spin cap of claim 1, wherein The fracture line is composed of a plurality of cuts, and all the cuts are uniformly distributed along the circumferential direction of the lower edge of the convex ring.

3. The scratch resistant aluminum alloy spin cap of claim 2, wherein, The cuts are arranged obliquely upward.

4. The scratch resistant aluminum alloy spin cap of claim 1, wherein The maximum diameter of the convex ring is greater than the diameter of the safety ring.

5. The scratch resistant aluminum alloy spin cap of claim 4, wherein, The convex ring comprises an upper arc-shaped part and a lower arc-shaped part which are connected in an arc shape, and the included angle of the upper arc-shaped part with respect to the vertical direction is smaller than the included angle of the lower arc-shaped part with respect to the vertical direction; the fracture line is located inside the bottom of the lower arc-shaped part.

6. The scratch resistant aluminum alloy spin cap of claim 1, wherein, The lower edge of the safety ring is provided with a step part extending inwardly along the circumferential direction, and the step part is matched with the bottle neck.

7. The scratch resistant aluminum alloy spin cap of any of claims 1-6, wherein, The cap body and the safety ring are integrally formed.

8. The scratch resistant aluminum alloy spin cap of claim 7, wherein, The cap body and the safety ring are made of aluminum alloy material.

9. The scratch resistant aluminum alloy spin cap of any of claims 1-6, wherein, The top inner wall of the cap body is provided with a sealing ring extending downward, and the sealing ring is sealingly matched with the inner wall of the bottle mouth.

10. The scratch resistant aluminum alloy spin cap of claim 9, wherein, The outer wall of the upper end of the cap body is provided with an anti-skid protrusion.

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