Self-sealing safe and sanitary beverage can made of all-aluminum material and convenient to produce, recycle and regenerate

Abstract

An all-aluminum self-sealing safe and sanitary beverage can convenient to produce, recycle and regenerate is characterized in that a sealing surface is formed through a metal stamping and stretching processing technology, the beverage can is made of pure aluminum metal, the end cover of the can body and a drinking nozzle are subjected to bidirectional elastic Kovar sealing by screwing the cambered surface of the end cover of the beverage can, and sealing rings made of other materials do not need to be additionally arranged; the screw cap of the aluminum threaded drinking nozzle is reliable in sealing, low in cost and simple in process, the recycled aluminum beverage cans and the screw cap of the aluminum threaded drinking nozzle are recycled synchronously, and the problem that sealing rings made of other materials pollute the aluminum beverage cans is solved. When the drinking nozzle is used for drinking, lips do not need to make contact with the can body or the can cover, the drinking nozzle is sealed and shaded through an aluminum threaded drinking nozzle screw cap, and the can cover is kept clean all the time. And compared with glass bottles and other products, full recovery of resources can be realized, so that the use cost, the recovery cost, the regeneration cost and the manufacturing cost are reduced to the minimum. Due to the fact that the overall recycling price of the aluminum beverage can is high, the recycling efficiency of the aluminum beverage can can be improved.

Description

Technical Field

[0001] The utility model belongs to a beverage can, in particular to a self-sealing safe and hygienic beverage can made of all-aluminum materials which is convenient for production and recycling. Background Art

[0002] At present, the containers for holding drinking liquids on the market are roughly divided into beverage bottles or beverage cans. The former mainly include glass bottles and plastic bottles, and the latter are beverage cans made of all-aluminum materials or tin-plated iron materials.

[0003] Bottled beverages are sealed with plastic threaded end caps or aluminum threaded end caps and can be drunk multiple times, which brings a lot of convenience to the repeated opening and closing of beverage bottles.

[0004] The caps of glass bottles are mostly tin-plated iron caps or aluminum screw caps, but because glass bottles are fragile and unsafe, and have low recycling value, they are often discarded as garbage.

[0005] The body and cap of current plastic beverage bottles are made of two different plastic materials. The groove on the cap is left on the bottle after being broken, and the end cap is screwed on after drinking the beverage. When the two different plastics are recycled and reused, they will contaminate each other, which greatly reduces their quality, performance and economic value. Sorting and recycling is time-consuming and laborious.

[0006] Beverage cans are widely used in the beverage industry. They are easy to carry and are widely favored by the public. The easy storage of beverage cans also brings great convenience to production, transportation and sales. As a lightweight packaging, beverage cans are gradually becoming the mainstream of beer packaging because of their excellent sealing and light-proof performance, and they are safer, more portable and more environmentally friendly. They represent the direction of future development.

[0007] The current beverage can consists of a can body and a can lid, and the can lid is designed with a pull ring, which is convenient for opening and drinking. It has the advantages of good sealing performance, long shelf life, recyclable can body, relatively environmentally friendly production process, and can be stacked. However, the mouth of the beverage can is directly stamped on the can lid to form a circle of easy-to-tear marks, which is exposed on the surface of the can lid. The mouth of the can is easily polluted by dust accumulation, and the pull ring is disposable and cannot be reused. Once the mouth of the can is opened, it cannot be closed again. The beverage contained in it needs to be drunk as soon as possible, and it is inconvenient to carry and store after opening the can.

[0008] The outbreak of the COVID-19 pandemic has significantly raised people's health awareness, and awareness of the safety and hygiene of food packaging has been qualitatively improved. The sanitary conditions of beverages in cans during storage and drinking have also attracted everyone's attention. For example, the media often reports on various contaminations of beverages in cans during transportation and storage, and even animals such as rats carrying dangerous viruses that infect the opening of cans. When consumers drink directly or pour out the beverage to drink, there is a risk that the beverage and the consumer will be contaminated by pollutants on the can.

[0009] The body of an aluminum beverage can is made of aluminum, and the lid is made of aluminum. When you open the beverage can to drink, you discard the pull ring on the aluminum lid. The beverage lid that flips inward when opened is more likely to be contaminated.

[0010] In order to solve the above problems, someone invented a utility model: a can with a drinking spout structure (application number: CN201320592193.5): a can with a drinking spout structure, comprising a can body, an inner cavity, and a pull ring, characterized in that the inner cavity is in a circular ring shape, and the inner cavity is fixedly connected to the upper end of the inner part of the can body, wherein the inner cavity is provided with a drinking spout, and the drinking spout gradually expands from top to bottom to a circular ring shape, the drinking spout is integrally connected to the inner cavity, the drinking spout is connected to the groove in the inner cavity of the can body, and the upper end of the drinking spout is adhesively connected to the pull ring on the upper end surface of the can body.

[0011] The purpose of this utility model is to solve the problem of unsanitary drinking spouts of cans. However, it adds a plastic drinking spout, which increases pollutants in recycling, increases manufacturing costs and difficulty, is uneconomical, and increases hidden dangers in health and safety. The old problems are solved, but new problems are brought about.

[0012] Someone invented another product: a beverage can with a drinking spout structure (application number: CN201510617201.0): a pull-open sealed can drinking spout, including a drinking spout cover and a drinking spout, characterized in that: the drinking spout includes a drinking spout, a telescopic tube, a straw, and a base, the base is installed on the top cover of the can, the telescopic end of the telescopic tube is connected to the drinking spout, and the lower end is connected to the base, and the telescopic end can be retracted into the base; the straw is connected to the telescopic tube, installed at the bottom of the telescopic tube, and extends into the can to the bottom of the can.

[0013] The purpose of this utility model is to solve the problem of unsanitary drinking spouts of cans, and this invention solves the unsanitary and inconvenient drinking spouts better, and beverages can be opened and closed multiple times for drinking. However, the manufacturing is more complicated, more parts are added, the cost is greatly increased, and the pollution and waste caused by recycling are also more serious.

[0014] The current aluminum threaded drinking spouts and aluminum threaded drinking spout screw caps are sealed by plastic sealing rings. Tin-plated iron cans have plastic sealing rings, plastic spouts and plastic caps, or aluminum pull-ring sealed caps on tin-plated iron drinking spouts. These have created difficulties for the recycling of metal materials and caused pollution.

[0015] The body of a tin-plated iron beverage can is made of tin-plated iron, and the lid is mostly made of aluminum. When the beverage can is opened for drinking, the aluminum lid with the pull ring is discarded. Since the economic value of iron cans is not high, they are difficult to deform, have a large volume, and are difficult to handle after recycling. Because the value of tin-plated iron is not high, and the waste caused by the high smelting temperature. In addition, tin-plated iron has high strength, is not easy to flatten, and has high recycling costs, many other factors will restrict the key factors of the can body.

[0016] How to achieve the high strength and non-deformation of the aluminum drinking spout of the can body, and how to achieve sealing with the aluminum drinking spout screw cap of the can body end cap, and how to recycle it completely. Therefore, producing a product that is all aluminum, easy to recycle, and meets its safety and sanitation requirements is the key to promoting the full utilization of renewable resources and the efficient recycling of aluminum cans. Its application in the convenient packaging and recycling of liquid beverages such as drinking water, beverages, beer, and liquor will become a future development trend. Summary of the invention

[0017] In order to overcome the shortcomings of the prior art, a self-sealing safe and hygienic beverage can made of all-aluminum materials that is easy to produce, recycle and regenerate is provided. The beverage can of the utility model is self-sealing, can be opened and sealed multiple times, has a reasonable structural design, and has low manufacturing cost. The utility model is an invention with omitted elements, and at the same time, it has an unexpected technical effect. Therefore, the utility model has outstanding substantive characteristics and significant technical progress. It represents the future development direction of liquid containers and has practical significance.

[0018] The technical scheme of the utility model is as follows: a self-sealing safe and hygienic beverage can made of all-aluminum materials that is easy to produce and recycle, including a beverage can body and a can end cover, the beverage can body and the can end cover are sealed by a pressed edge between the two, or the beverage can body and the can mouth are integrally stretched and rolled. Its characteristics are: the beverage can body is an aluminum plate that is integrally stamped and stretched to form a single-pass can body.

[0019] The can end cap that matches the beverage can body is an aluminum plate that is integrally stamped and stretched and flanged. The center opening is made into a cover body with a drinking spout. The inner wall of the can end cap drinking spout is provided with a flange edge formed by stretching the inner flange opening, with a large upper edge and a small lower edge, and a taper-shaped inverted closed-loop edge sealing ring. The outer wall of the can end cap drinking spout is provided with a rolling-formed thread and a closed-loop concave locking groove, which is made into an inverted closed-loop edge sealing ring with a certain width of sealing surface and certain elasticity and frangibility, making the can end cap drinking spout an aluminum threaded drinking spout with high rigidity.

[0020] The aluminum threaded drinking spout is provided with a corresponding aluminum threaded drinking spout screw cap, which is formed by stamping, stretching and rolling. The top of the aluminum threaded drinking spout screw cap is provided with a vertical sealing ring surface and a concave circular arc top cover surface integrated therewith. The sealing ring surface of the vertical surface of the aluminum threaded drinking spout screw cap and the inner wall of the drinking spout of the end cover of the can body have a tapered inward-turned closed loop edge sealing ring ring surface that corresponds to and matches each other.

[0021] The outer vertical surface of the cover body of the aluminum threaded drinking spout screw cap is provided with a rolled thread, and the lower part of the outer vertical surface of the cover body is provided with a connecting rib point, a breaking line and a locking ring, so as to be provided with an elastic vertical sealing ring surface of a certain width and a concave circular arc surface, and the aluminum threaded drinking spout screw cap has high rigidity characteristics.

[0022] The aluminum threaded drinking spout cap and the aluminum threaded drinking spout of the end cap are spun and sealed to form a "factory"-shaped contact sealing surface, which realizes self-sealing without the need for sealing rings of other materials. The aluminum threaded drinking spout cap and the aluminum threaded drinking spout of the end cap are sealed and locked by rolling the locking ring and the closed-loop positioning groove to form a composite structure of the drinking spout of the end cap of the tank and the aluminum threaded drinking spout cap. This composite structure does not require the manufacture and installation of sealing rings of other materials, omits plastic sealing rings, and simplifies the processing and production process. It overcomes the technical prejudice that the aluminum threaded drinking spout cap must be sealed with a plastic sealing ring.

[0023] The composite structure of the drinking spout at the end cover of the can body and the aluminum threaded drinking spout screw cap, when there is air pressure in the aluminum beverage can, the pressure generated by the air pressure on the aluminum arc surface acts on the sealing surface of the aluminum threaded drinking spout screw cap, and the same gas pressure also acts on the groove vertical surface of the closed-loop inward-turned sealing edge of the aluminum threaded drinking spout, so that the closed-loop inward-turned sealing edge and the aluminum threaded drinking spout screw cap are provided with a certain width of elastic vertical sealing ring surface and a concave circular arc surface for double-sided compression sealing.

[0024] The aluminum threaded drinking spout screw cap is used to disconnect the connection ribs by twisting the screw cap in reverse direction, so that the aluminum threaded drinking spout is opened, and the aluminum threaded drinking spout is closed by twisting the screw cap back.

[0025] A self-sealing safe and hygienic beverage can made of all-aluminum materials that is easy to produce and recycle, including a beverage can body and a can end cover, wherein the beverage can body and the can end cover are sealed by a pressed edge between the two, or the beverage can body and the can mouth are integrally stretched and rolled. The beverage can body is characterized in that the beverage can body is integrally stamped and stretched from an aluminum plate to form a single-pass can body.

[0026] The can end cover corresponding to the beverage can body is a cover body with a drinking spout formed by an integrally stamped and stretched aluminum plate with a center hole. The inner wall of the drinking spout of the can end cover is provided with an inward-turned arc-shaped pressed closed-loop edge sealing ring on the edge of the stretched inner-turned opening to form the flange opening.

[0027] The outer wall of the drinking spout of the end cover of the tank body is provided with a rolled thread and a closed-loop concave locking groove, which is formed into a closed-loop inward-turned arc-shaped pressed sealing ring edge with a certain width of sealing surface, certain elasticity and cuttable characteristics, so that the drinking spout of the end cover of the tank body becomes an aluminum threaded drinking spout with high rigidity characteristics.

[0028] The aluminum threaded drinking spout is provided with a corresponding aluminum threaded drinking spout screw cap, which is formed by stamping, stretching and rolling. The top of the aluminum threaded drinking spout screw cap is provided with a vertical sealing ring surface and a concave circular arc top cover surface integrated therewith. The sealing ring surface of the vertical surface of the aluminum threaded drinking spout screw cap and the closed-loop inward-turned sealing edge ring surface with a certain curvature on the inner wall of the drinking spout of the end cover of the can body correspond to the spinning contact seal.

[0029] The outer vertical surface of the cover body of the aluminum threaded drinking spout screw cap is provided with a rolled thread, and the lower part of the outer vertical surface of the cover body is provided with a connecting rib point, a breaking line and a locking ring, so as to be provided with an elastic vertical sealing ring surface of a certain width and a concave circular arc surface, and the aluminum threaded drinking spout screw cap with high rigidity characteristics.

[0030] The aluminum threaded drinking spout cap and the aluminum threaded drinking spout of the end cap are spun and sealed to form a "factory"-shaped contact sealing surface, which realizes self-sealing without the need for sealing rings of other materials. The aluminum threaded drinking spout cap and the aluminum threaded drinking spout of the end cap are sealed and locked by rolling the locking ring and the closed-loop positioning groove to form a composite structure of the drinking spout of the end cap of the tank and the aluminum threaded drinking spout cap. This composite structure does not require the manufacture and installation of sealing rings of other materials, omits plastic sealing rings, and simplifies the processing and production process. It overcomes the technical prejudice that the aluminum threaded drinking spout cap must be sealed with a plastic sealing ring.

[0031] The composite structure of the drinking spout at the end cover of the can body and the aluminum threaded drinking spout screw cap, when there is air pressure in the aluminum beverage can, will apply the pressure generated by the air pressure on the arc surface of the aluminum threaded drinking spout screw cap to the edge sealing surface of the aluminum closed-loop inward-turned arc-shaped pressed-fit sealing ring, so that the arc-shaped sealing surface of the closed-loop inward-turned arc-shaped pressed-fit sealing ring of the closed-loop will be elastically pressed and sealed with the upright sealing ring surface of the aluminum threaded drinking spout screw cap and the concave circular arc-shaped top cover surface integrated therewith.

[0032] The aluminum threaded drinking spout screw cap is used to disconnect the connection ribs by twisting the screw cap in reverse direction, so that the aluminum threaded drinking spout is opened, and the aluminum threaded drinking spout is closed by twisting the screw cap back.

[0033] The utility model relates to a self-sealing safe and hygienic beverage can made of all-aluminum material which is easy to produce, recycle and regenerate, and the end cover of the can body is a plane surface, a curved surface or a conical surface.

[0034] A self-sealing safe and hygienic beverage can made of all-aluminum material which is easy to produce and recycle. A trapezoidal plastic dust cover is provided on the end cover of the can body. The top surface of the plastic dust cover is engaged with the size of the aluminum threaded drinking spout screw cap, and the opening edge of the plastic dust cover is engaged with the size of the pressed edge of the beverage can.

[0035] The utility model relates to a self-sealing safe and hygienic beverage can made of all-aluminum material which is easy to produce, recycle and regenerate. A flexible straw is coiled inside the plastic dust cover of the can. The straw is a plastic tube or an aluminum tube.

[0036] The utility model relates to a self-sealing safe and hygienic beverage can made of all-aluminum material which is easy to produce and recycle. The end cover of the can body is provided with a trapezoidal plastic dustproof film which is tightly sealed with the pressed edge of the aluminum threaded drinking spout screw cap and the beverage can.

[0037] The beneficial effects of the utility model are:

[0038] The utility model is based on the metal innovative structure and stamping and stretching processing technology to form the sealing surface, and realizes the manufacturing of pure aluminum metal. The arc surface of the beverage can end cover is tightened to make the can end cover and the drinking spout bidirectional elastic seal, and there is no need to install other material sealing rings, so that the sealing of the aluminum threaded drinking spout screw cap is reliable, low cost, simple process, and the recycled aluminum beverage cans and the aluminum threaded drinking spout screw cap are recycled synchronously, which solves the pollution of aluminum beverage cans by other material sealing rings. The installation of the sealing ring of the can end cover and the pollution of low melting point aluminum by the sealing ring during the recycling and regeneration process are avoided. Compared with glass bottles and other products, this product can realize the full recycling of resources, so that its use cost, recycling cost, regeneration cost and manufacturing cost are reduced to the lowest. Since an incentive mechanism can be formulated with a high overall recycling price for aluminum beverage cans and a low separate recycling price for beverage can bodies and beverage can lids, the recycling efficiency of aluminum beverage cans can be improved.

[0039] When drinking from the drinking spout of the utility model, the lips do not need to touch the can body or the can cover. The drinking spout has an aluminum threaded drinking spout and a sealing cover, and the can cover is always kept clean, avoiding contamination of the beverage can during transportation and storage. Compared with traditional beverage cans, the aluminum beverage can directly drinks the beverage in the can body through the drinking spout on the upper part of the can body. It is safer to drink repeatedly or in batches, and it can be repeatedly sealed, does not leak air, and the taste is not easily changed. At the same time, it is convenient to carry and avoids infection of the mouth of the can. It effectively fills the shortcomings of existing beverage containers. The utility model has a reasonable design structure, low production cost, and is convenient to drink. It is an alternative product to plastic bottles, conventional aluminum beverage cans, and tin-plated iron beverage cans, creating conditions for the large-scale use of aluminum beverage cans. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] FIG1 is a cross-sectional view of the overall structure of the aluminum threaded drinking spout screw cap and the beverage can body of the first embodiment of the utility model, which is a self-sealing safe and hygienic beverage can made of all aluminum materials that is easy to produce and recycle;

[0041] FIG2 is a cross-sectional view of the separate structure of the aluminum threaded drinking spout, screw cap and beverage can body of the first embodiment of the utility model, which is a self-sealing, safe and hygienic beverage can made of all aluminum materials that is easy to produce and recycle;

[0042] FIG3 is a cross-sectional view of the overall structure of the aluminum threaded drinking spout screw cap, the beverage can body and the trapezoidal plastic dust cover of the first embodiment of the utility model, which is a self-sealing safe and hygienic beverage can made of all aluminum materials that is easy to produce and recycle;

[0043] FIG4 is a cross-sectional view of the separate structure of the aluminum threaded drinking spout screw cap, the beverage can body, and the trapezoidal plastic dust cover of the first embodiment of the utility model, which is a self-sealing safe and hygienic beverage can made of all aluminum materials that is easy to produce and recycle;

[0044] 5 is a cross-sectional view of the overall structure of the aluminum threaded drinking spout screw cap and the beverage can body of the second embodiment of the utility model, which is a self-sealing safe and hygienic beverage can made of all aluminum materials that is easy to produce and recycle;

[0045] 6 is a cross-sectional view of the separate structure of the aluminum threaded drinking spout, screw cap and beverage can body of the second embodiment of the utility model, which is a self-sealing safe and hygienic beverage can made of all aluminum materials that is easy to produce and recycle;

[0046] 7 is a cross-sectional view of the overall structure of the aluminum threaded drinking spout screw cap, the beverage can body and the trapezoidal plastic dust cover of the second embodiment of the utility model, which is a self-sealing safe and hygienic beverage can made of all aluminum materials that is easy to produce and recycle;

[0047] FIG8 is a cross-sectional view of the separate structure of the trapezoidal plastic dust cover, the aluminum threaded spout screw cap and the beverage can body of the second embodiment of the utility model, which is a self-sealing safe and hygienic beverage can made of all aluminum materials that is easy to produce and recycle;

[0048] 9 is a cross-sectional view of the overall structure of the aluminum threaded drinking spout screw cap and the beverage can body of the third embodiment of the utility model, which is a self-sealing safe and hygienic beverage can made of all aluminum materials that is easy to produce and recycle;

[0049] 10 is a schematic cross-sectional view of the separate structure of the aluminum threaded drinking spout and the beverage can body of the third embodiment of the utility model, which is a self-sealing safe and hygienic beverage can made of all aluminum materials that is easy to produce and recycle;

[0050] 11 is a cross-sectional view of the overall structure of the aluminum threaded spout screw cap, beverage can body and trapezoidal plastic dust cover of the third embodiment of the utility model, which is a self-sealing safe and hygienic beverage can made of all aluminum materials that is easy to produce and recycle;

[0051] 12 is a schematic cross-sectional view of the separate structure of the trapezoidal plastic dust cover, the aluminum threaded spout screw cap and the beverage can body of the third embodiment of the utility model, which is a self-sealing safe and hygienic beverage can made of all aluminum materials that is easy to produce and recycle;

[0052] 13 is a schematic cross-sectional view of the overall structure of the aluminum threaded drinking spout screw cap and the beverage can body of the fourth embodiment of the utility model, which is a self-sealing safe and hygienic beverage can made of all aluminum materials that is easy to produce and recycle;

[0053] 14 is a schematic cross-sectional view of the separate structure of the aluminum threaded drinking spout and the beverage can body of the fourth embodiment of the utility model, which is a self-sealing safe and hygienic beverage can made of all aluminum materials that is easy to produce and recycle;

[0054] 15 is a schematic cross-sectional view of the overall structure of the aluminum threaded spout screw cap, beverage can body and trapezoidal plastic dust cover of the fourth embodiment of the utility model, which is a self-sealing safe and hygienic beverage can made of all aluminum materials that is easy to produce and recycle;

[0055] 16 is a schematic cross-sectional view of the structure of the fourth embodiment of the utility model, which is a self-sealing safe and hygienic beverage can made of all-aluminum material that is easy to produce and recycle, and includes a trapezoidal plastic dust cover, an aluminum threaded spout screw cap, and a beverage can body;

[0056] 17 is a cross-sectional view of the overall structure of the aluminum threaded drinking spout and the beverage can body of the fifth embodiment of the utility model, which is a self-sealing safe and hygienic beverage can made of all aluminum materials that is easy to produce and recycle;

[0057] 18 is a schematic cross-sectional view of the separate structure of the aluminum threaded drinking spout and the beverage can body of the fifth embodiment of the utility model, which is a self-sealing safe and hygienic beverage can made of all aluminum materials that is easy to produce and recycle;

[0058] 19 is a cross-sectional view of the overall structure of the aluminum threaded drinking spout screw cap and the beverage can body of the sixth embodiment of the utility model, which is a self-sealing safe and hygienic beverage can made of all aluminum materials that is easy to produce and recycle;

[0059] 20 is a schematic cross-sectional view of the separate structure of the aluminum threaded drinking spout, screw cap and beverage can body of the sixth embodiment of the utility model, which is a self-sealing, safe and hygienic beverage can made of all-aluminum material that is easy to produce, recycle and regenerate.

[0060] Figure identification: 1 concave pressure-bearing arc surface of aluminum threaded drinking spout screw cap, 2 aluminum threaded drinking spout screw cap thread, 3 aluminum threaded drinking spout screw cap connecting rib point, 4 aluminum threaded drinking spout screw cap locking groove, 5 beverage can pressed edge, 6 beverage can pressed edge buckle groove, 7 aluminum threaded drinking spout sealing mouth, 8 aluminum threaded drinking spout opening upright sealing ring edge, 9 aluminum threaded drinking spout thread, 10 aluminum threaded drinking spout screw cap locking ring, 11 aluminum threaded drinking spout screw cap sealing surface, 12 can body end cover, 13 can body barrel wall, 14 can body barrel bottom, 15 trapezoidal plastic dust cover, 16 trapezoidal plastic dust cover clamp, 17 aluminum threaded drinking spout closed arc sealing ring edge. DETAILED DESCRIPTION

[0061] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0062] The first embodiment is shown in Figures 1 and 2: a self-sealing safe and hygienic beverage can made of all-aluminum material that is easy to produce and recycle, including a beverage can body barrel wall 13 and a can end cover 12. The beverage can body barrel wall 13 and the can end cover 12 are sealed and connected by a pressed edge 5 therebetween. The beverage can body is a single-pass can body made by integrally stamping and stretching an aluminum sheet.

[0063] The can end cap 13, which matches the barrel wall 13 of the beverage can body, is a plane, and is made of an aluminum plate that is integrally stamped and stretched, and the center opening is made into a cover body with a drinking spout. On the inner wall of the can end cap drinking spout, there is a flange edge formed by stretching the inner flange opening, with a large upper edge and a small lower edge, and a sealing ring ring with a certain taper of the inner closed loop edge. On the outer wall of the drinking spout of the can end cap 12, there are rolled aluminum threaded drinking spout threads 9 and aluminum threaded drinking spout screw cap locking grooves 4, and with a certain width of aluminum threaded drinking spout sealing mouth 7 and a certain elastic and calculable aluminum threaded drinking spout opening upright sealing ring edge 8, to make an aluminum threaded drinking spout with high rigidity characteristics.

[0064] The aluminum threaded drinking spout is provided with a corresponding aluminum threaded drinking spout screw cap, which is formed by stamping, stretching and rolling. The top of the aluminum threaded drinking spout screw cap is provided with a vertical aluminum threaded drinking spout screw cap sealing surface 11 and a concave pressure-bearing arc surface 1 of the aluminum threaded drinking spout screw cap integrated therewith. The sealing ring surface of the aluminum threaded drinking spout screw cap sealing surface 11 and the inner wall of the drinking spout of the end cover of the can body have a certain tapered aluminum threaded drinking spout opening vertical sealing ring edge 8 surface that corresponds to the matching surface.

[0065] The aluminum threaded drinking spout screw cap has an aluminum threaded drinking spout screw cap thread 2 on the outer vertical surface of the cap body, and an aluminum threaded drinking spout screw cap connection rib 3 and a break line and an aluminum threaded drinking spout screw cap locking ring 10 on the lower part of the outer vertical surface of the cap body, so as to be provided with an elastic and frangible upright aluminum threaded drinking spout screw cap sealing surface 11 of a certain width and a concave pressure-bearing arc surface 1 of the aluminum threaded drinking spout screw cap, and has high rigidity characteristics.

[0066] The aluminum threaded drinking spout cap and the aluminum threaded drinking spout of the end cap are spun and contact-sealed to form a "factory"-shaped contact sealing surface, which realizes self-sealing without the need for sealing rings of other materials. The aluminum threaded drinking spout cap and the aluminum threaded drinking spout of the end cap are sealed and locked by pressing the locking ring 10 of the aluminum threaded drinking spout cap and the locking groove 4 of the aluminum threaded drinking spout cap, forming a composite structure of the drinking spout of the end cap of the tank body and the aluminum threaded drinking spout cap.

[0067] The composite structure of the drinking spout at the end cover of the can body and the aluminum threaded drinking spout screw cap, when there is air pressure in the aluminum beverage can, the pressure generated by the air pressure on the aluminum arc surface acts on the sealing surface of the aluminum threaded drinking spout screw cap, and the same gas pressure also acts on the groove vertical surface of the closed-loop inward-turned sealing edge of the aluminum threaded drinking spout, so that the closed-loop inward-turned sealing edge and the aluminum threaded drinking spout screw cap are provided with a certain width of elastic vertical sealing ring surface and a concave circular arc surface for double-sided compression sealing.

[0068] The aluminum threaded drinking spout screw cap is twisted in the reverse direction to disconnect the aluminum threaded drinking spout screw cap connection rib point 3 so that the aluminum threaded drinking spout is opened, and the aluminum threaded drinking spout is closed by twisting the screw cap back.

[0069] The first embodiment is shown in Figures 3 and 4: a trapezoidal plastic dust cover 15 is provided on the can end cover 12, the top surface of the trapezoidal plastic dust cover 15 is engaged with the size of the aluminum threaded drinking spout screw cap, and the trapezoidal plastic dust cover clamping ring 16 is engaged with the size of the pressed edge of the beverage can.

[0070] The rest is the same as Figure 1 and Figure 2.

[0071] The second embodiment is shown in FIG. 5 and FIG. 6 : the tank end cover 12 is a conical surface, and the rest is the same as FIG. 1 and FIG. 2 .

[0072] The second embodiment is shown in FIG. 7 and FIG. 8 : the tank end cover 12 is a conical surface, and the rest is the same as FIG. 3 and FIG. 4 .

[0073] The third embodiment is shown in Figures 9 and 10: on the outer wall of the drinking spout of the can end cover 12, there are roll-formed aluminum threaded drinking spout threads 9 and aluminum threaded drinking spout screw-cover locking grooves 4, and an aluminum threaded drinking spout sealing opening 7 with a certain width and an aluminum threaded drinking spout closed arc-shaped sealing ring edge 17 with a certain elasticity and calculable characteristics, to form an aluminum threaded drinking spout with high rigidity characteristics.

[0074] The rest is the same as Figure 1 and Figure 2.

[0075] The third embodiment is shown in Figures 11 and 12: a trapezoidal plastic dust cover 15 is provided on the can end cover 12, the top surface of the trapezoidal plastic dust cover 15 is engaged with the size of the aluminum threaded spout screw cap, and the trapezoidal plastic dust cover clamping ring 16 is engaged with the size of the pressed edge of the beverage can.

[0076] The rest is the same as Figures 9 and 10.

[0077] The fourth embodiment is shown in Figures 13 and 14: on the outer wall of the drinking spout of the can end cover 12, there are provided with a roll-formed aluminum threaded drinking spout thread 9 and an aluminum threaded drinking spout screw cap locking groove 4, and an aluminum threaded drinking spout sealing port 7 with a certain width and an aluminum threaded drinking spout closed arc sealing ring edge 17 with a certain elasticity and calculable characteristics, to form an aluminum threaded drinking spout with high rigidity characteristics.

[0078] The rest is the same as Figure 5 and Figure 6.

[0079] The fourth embodiment is shown in Figures 15 and 16: a trapezoidal plastic dust cover 15 is provided on the can end cover 12, the top surface of the trapezoidal plastic dust cover 15 is engaged with the size of the aluminum threaded spout screw cap, and the trapezoidal plastic dust cover clamping ring 16 is engaged with the size of the pressed edge of the beverage can.

[0080] The rest is the same as Figure 7 and Figure 8.

[0081] The fifth embodiment is shown in FIG. 17 and FIG. 18 : the tank barrel wall 13 and the tank end cover 12 are integrally formed by stretching and rolling, and the rest is the same as FIG. 5 and FIG. 6 .

[0082] The sixth embodiment is shown in FIG. 19 and FIG. 20 : the tank barrel wall 13 and the tank end cover 12 are integrally formed by stretching and rolling, and the rest is the same as FIG. 13 and FIG. 14 .

Claims

1. A self-sealing safe and hygienic beverage can made of all-aluminum materials that is easy to produce and recycle, comprising a beverage can body and a can body end cover, wherein the beverage can body and the can body end cover are sealed by a pressed edge between the two, or the beverage can body and the can body mouth are integrally stretched and rolled, and characterized by: The beverage can body is made of aluminum sheet that is integrally stamped and stretched to form a single-pass can body; The can end cap that matches the beverage can body is an aluminum plate that is integrally stamped and stretched to form a flange. The center opening is formed into a cover body with a drinking spout. The inner wall of the can end cap drinking spout is formed by stretching the inner flange opening to form a flange edge with a large upper edge and a small lower edge, and an inverted closed-loop edge sealing ring with a certain taper; the outer wall of the can end cap drinking spout is provided with a rolling-formed thread and a closed-loop concave locking groove to form an inverted closed-loop edge sealing ring with a certain width of sealing surface and certain elasticity and frangibility, so that the can end cap drinking spout becomes an aluminum threaded drinking spout with high rigidity characteristics; The aluminum threaded drinking spout is provided with a corresponding aluminum threaded drinking spout screw cap, which is formed by stamping, stretching and rolling. The top of the aluminum threaded drinking spout screw cap is provided with a vertical sealing ring surface and a concave circular arc top cover surface integrated therewith. The sealing ring surface of the vertical surface of the aluminum threaded drinking spout screw cap and the inner wall of the drinking spout of the end cover of the can body have a certain tapered inward-turned closed loop edge sealing ring ring surface that corresponds to and matches; The aluminum threaded drinking spout screw cap has a rolled thread on the outer vertical surface of the cap body, and a connection rib point, a break line and a locking ring are provided at the lower part of the outer vertical surface of the cap body, so as to be provided with a certain width of elastic vertical sealing ring surface and a concave circular arc surface, and has a high rigidity characteristic of the aluminum threaded drinking spout screw cap; The aluminum threaded drinking spout screw cap and the aluminum threaded drinking spout of the end cap are spun into contact and sealed to form a "factory"-shaped contact sealing surface, which realizes self-sealing without the need for sealing rings of other materials; the aluminum threaded drinking spout screw cap and the aluminum threaded drinking spout of the end cap are sealed and locked by rolling the locking ring and the closed-loop positioning groove, forming a composite structure of the drinking spout of the end cap of the tank body and the aluminum threaded drinking spout screw cap; The composite structure of the drinking spout of the can end cap and the aluminum threaded drinking spout screw cap, when there is air pressure in the aluminum beverage can, the pressure generated by the air pressure on the aluminum arc surface acts on the sealing surface of the aluminum threaded drinking spout screw cap, and the same gas pressure also acts on the groove vertical surface of the closed-loop inverted sealing edge of the aluminum threaded drinking spout, so that the closed-loop inverted sealing edge and the aluminum threaded drinking spout screw cap are provided with a certain width of elastic vertical sealing ring surface and a concave circular arc surface with double-sided compression sealing; The aluminum threaded drinking spout screw cap is used to disconnect the connection ribs by twisting the screw cap in reverse direction, so that the aluminum threaded drinking spout is opened, and the aluminum threaded drinking spout is closed by twisting the screw cap back.

2. A self-sealing safe and hygienic beverage can made of all-aluminum materials that is easy to produce and recycle, comprising a beverage can body and a can end cover, wherein the beverage can body and the can end cover are sealed by a pressed edge between the two, or the beverage can body and the can mouth are integrally stretched and rolled, and characterized by: The beverage can body is made of aluminum sheet that is integrally stamped and stretched to form a single-pass can body; The can end cap that matches the beverage can body is a cover body with a drinking spout formed by integrally stamping and stretching an aluminum plate through a central opening of a flange, and an inverted arc-shaped pressed closed-loop edge sealing ring is provided on the inner wall of the can end cap drinking spout formed by stretching the inner flange opening to form the flange opening edge; The outer wall of the drinking spout of the end cover of the tank body is provided with a rolling-formed thread and a closed-loop concave locking groove, which is formed into a closed-loop inward-turned arc-shaped pressed sealing ring edge with a certain width of sealing surface, certain elasticity and cuttable characteristics, so that the drinking spout of the end cover of the tank body becomes an aluminum threaded drinking spout with high rigidity characteristics; The aluminum threaded drinking spout is provided with a corresponding aluminum threaded drinking spout screw cap, which is formed by stamping, stretching and rolling. The top of the aluminum threaded drinking spout screw cap is provided with a vertical sealing ring surface and a concave circular arc top cover surface integrated therewith. The sealing ring surface of the vertical surface of the aluminum threaded drinking spout screw cap and the closed-loop inverted sealing edge ring surface with a certain arc on the inner wall of the drinking spout of the end cover of the tank body correspond to the matching spinning contact seal; The outer vertical surface of the cover body of the aluminum threaded drinking spout screw cap is provided with a rolled thread, and the lower part of the outer vertical surface of the cover body is provided with a connecting rib point, a disconnection line and a locking ring, so as to be provided with a certain width of elastic vertical sealing ring surface and a concave circular arc surface, and the aluminum threaded drinking spout screw cap with high rigidity characteristics; The aluminum threaded drinking spout screw cap and the aluminum threaded drinking spout of the end cap are spun into contact and sealed to form a "factory"-shaped contact sealing surface, which realizes self-sealing without the need for sealing rings of other materials; the aluminum threaded drinking spout screw cap and the aluminum threaded drinking spout of the end cap are sealed and locked by rolling the locking ring and the closed-loop positioning groove, forming a composite structure of the drinking spout of the end cap of the tank body and the aluminum threaded drinking spout screw cap; The composite structure of the drinking spout of the can end cap and the aluminum threaded drinking spout screw cap, when there is air pressure in the aluminum beverage can, the pressure generated by the air pressure on the arc surface of the aluminum threaded drinking spout screw cap acts on the edge sealing surface of the aluminum closed-loop inward-turned arc-shaped pressed-fit sealing ring, so that the arc-shaped sealing surface of the closed-loop inward-turned arc-shaped pressed-fit sealing ring of the closed-loop inward-turned closed-loop is elastically pressed and sealed with the vertical sealing ring surface of the aluminum threaded drinking spout screw cap and the concave circular arc-shaped top cover surface integral therewith; The aluminum threaded drinking spout screw cap is used to disconnect the connection ribs by twisting the screw cap in reverse direction, so that the aluminum threaded drinking spout is opened, and the aluminum threaded drinking spout is closed by twisting the screw cap back.

3. A self-sealing safe and hygienic beverage can made of all-aluminum material that is easy to produce, recycle and regenerate as claimed in claim 1 or 2, characterized in that: The end cover of the tank body is a flat surface, a curved surface or a conical surface.

4. A self-sealing safe and hygienic beverage can made of all-aluminum material that is easy to produce, recycle and regenerate as claimed in claim 1 or 2, characterized in that: A trapezoidal plastic dust cover is arranged on the end cover of the can body, the top surface of the plastic dust cover is engaged with the size of the aluminum threaded drinking spout screw cap, and the opening edge of the plastic dust cover is engaged with the size of the pressed edge of the beverage can.

5. A self-sealing safe and hygienic beverage can made of all-aluminum material that is easy to produce, recycle and regenerate as claimed in claim 1 or 2, characterized in that: A straw with a certain elasticity is coiled inside the plastic dust cover, and the straw is a plastic tube or an aluminum tube.

6. A self-sealing safe and hygienic beverage can made of all-aluminum material that is easy to produce, recycle and regenerate as claimed in claim 1 or 2, characterized in that: A trapezoidal plastic dustproof film is arranged on the end cover of the can body, and the plastic dustproof film is tightly sealed with the aluminum threaded drinking spout screw cap and the pressed edge of the beverage can.

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