CN110482013B

CN110482013B - Plastic bottle for beverage

Info

Publication number: CN110482013B
Application number: CN201910801272.4A
Authority: CN
Inventors: 不公告发明人
Original assignee: Hongmi Plastic Technology Taizhou Co ltd
Current assignee: Huizhou Yuming Plastic Products Co ltd
Priority date: 2019-08-28
Filing date: 2019-08-28
Publication date: 2021-11-26
Anticipated expiration: 2039-08-28
Also published as: CN110482013A

Abstract

The invention belongs to the technical field of plastic bottles, in particular to a plastic bottle for beverages; it includes a bottle body, a bottle cap and an inflatable unit; the top of the bottle cap is provided with a through hole; the inflatable unit is fixed in the bottle cap and inflated The unit includes a rubber film, an aluminum foil and a waterproof and breathable film; the rubber film is fixed on the side wall of the through hole close to the outside of the bottle, so that the inside of the bottle and the outside of the bottle are not connected; the aluminum foil is fixed on the side of the through hole close to the inside of the bottle on the wall, so that the through hole and the bottle are not connected; the through hole is provided with sodium carbonate solid in the space sandwiched between the rubber film and the aluminum foil; the bottle cap is sandwiched between the waterproof breathable membrane and the top of the bottle cap There is a citric acid solution in the space of the bottle; carbon dioxide gas is generated through the cooperation of the rubber film, aluminum foil and waterproof breathable film, so that it dissolves in the beverage, increases the taste of the beverage, improves the use effect of the beverage bottle, and brings a good experience to the user. .

Description

Plastic bottle for beverage

Technical Field

The invention belongs to the technical field of plastic bottles, and particularly relates to a plastic bottle for beverages.

Background

The plastic bottle is mainly made of materials such as polyethylene or polypropylene and is added with a plurality of organic solvents; the plastic bottle widely uses Polyester (PET), Polyethylene (PE) and polypropylene (PP) as raw materials, is added with corresponding organic solvent, is heated at high temperature, and passes through a plastic mold to be subjected to blow molding, extrusion blowing or injection molding to form a plastic container; the packaging container is mainly used for liquid or solid disposable plastic packaging containers of beverages, foods, pickles, honey, dried fruits, edible oil, agricultural and veterinary drugs and the like; the plastic bottle has the characteristics of low breakage probability, low cost, high transparency, food-grade raw materials and the like, and most of carbonated beverage bottles in the current market use the plastic bottle; since the carbonated beverage contains a large amount of carbon dioxide, people can feel cool and irritated when drinking, but if the carbonated beverage of a whole bottle cannot be drunk at a time, the carbon dioxide in the carbonated beverage is gradually separated out along with the shaking of the plastic bottle, so that the taste of the carbonated beverage is reduced, and the evaluation and the impression of consumers on the carbonated beverage are influenced.

Disclosure of Invention

In order to make up for the defects of the prior art, the problem that if a whole bottle of carbonated beverage cannot be drunk at one time, carbon dioxide in the carbonated beverage is gradually separated out along with the shaking of a plastic bottle, so that the taste of the carbonated beverage is reduced, and the evaluation and impression of a consumer on the carbonated beverage are influenced is solved; the invention provides a plastic bottle for beverage.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a plastic bottle for beverage, which comprises a bottle body, a bottle cap and an inflating unit, wherein the bottle body is provided with a bottle opening; the top end of the bottle cap is provided with a through hole; the inflation unit is fixed in the bottle cap and comprises a rubber film, an aluminum foil and a waterproof breathable film; the rubber membrane is fixed on the side wall in the through hole close to the outside of the bottle, so that the inside and the outside of the bottle are not communicated; the aluminum foil is fixed on the side wall in the through hole close to the bottle, so that the through hole is not communicated with the bottle; the through hole is internally provided with sodium carbonate solid in the space clamped between the rubber film and the aluminum foil; the waterproof breathable film is fixed on the side wall, close to the through hole, in the bottle cap; the bottle cap is provided with a citric acid solution in a space clamped between the waterproof breathable film and the top end of the bottle cap; the carbon dioxide gas is generated by matching the rubber film, the aluminum foil and the waterproof breathable film, so that the carbon dioxide gas is dissolved in the beverage, and the taste of the beverage is improved; when in use, when a user does not open the plastic bottle after drinking the whole carbonated beverage once, the carbon dioxide content of the carbonated beverage in the bottle is reduced, so that the taste of the carbonated beverage is greatly reduced, at the moment, the bottle cap is only required to be covered again, the rubber film on the bottle cap is pressed forcibly, when the rubber membrane is pressed, a part of pressure is transmitted to the aluminum foil through the sodium carbonate solid, when the aluminum foil is punctured, the sodium carbonate solid falls into the citric acid solution, because the sodium carbonate reacts with the citric acid to generate a large amount of carbon dioxide which enters the bottle body through the waterproof breathable film, the content of the carbon dioxide in the plastic bottle is rapidly increased, and the carbon dioxide is easily dissolved in water, so that the content of the carbon dioxide in the carbonated beverage is increased, the mouthfeel of the carbonated beverage is enhanced, the using effect of the beverage bottle is improved, and good using experience is brought to a user.

Preferably, the through hole is provided with an inclination at a position close to the inside of the bottle, so that the diameter of the through hole is larger at the position close to the inside of the bottle, and the movement of the sodium carbonate solid is facilitated; during the use, when the user presses the rubber membrane on the bottle lid hard, the rubber membrane pressurized after will have some pressure to transmit to the aluminium foil through the sodium carbonate solid, after the aluminium foil is stabbed, the sodium carbonate solid can drop to in the citric acid solution, at the in-process that drops of sodium carbonate, for avoiding the adhesion of sodium carbonate solid on the through-hole lateral wall, department is equipped with the inclination near the bottle in the through-hole, it is big more to make the through-hole be close to the interior department diameter of bottle more, guaranteed when the aluminium foil is stabbed, the sodium carbonate solid in the through-hole can fall down completely, can provide abundant carbon dioxide for the carbonated beverage in the body, carbonated beverage's taste has been improved, the result of use of beverage bottle has been strengthened, bring good use experience for the user.

Preferably, the through hole is internally provided with an iron block in a space clamped between the rubber film and the aluminum foil, so that the inconvenience of puncturing the aluminum foil is reduced; during the use, when the user pressed the rubber membrane on the bottle lid hard, there was some pressure to transmit to the aluminium foil through the sodium carbonate solid behind the rubber membrane pressurized, because the brittleness of sodium carbonate solid is great, when the aluminium foil has not stabbed yet, the sodium carbonate solid has just been crumbled, make the unable complete transmission of pressing force that the rubber membrane received to the aluminium foil, make the degree of difficulty that the aluminium foil was stabbed great, and after being equipped with the iron plate in the through-hole in the space of pressing from both sides between rubber membrane and aluminium foil, because the iron plate hardness is great, guaranteed that the pressing force that the rubber membrane received can mostly transmit to the aluminium foil through the iron plate, the convenience of stabbing the aluminium foil has been improved, strengthen the result of use of plastic bottle, bring good use experience for the user.

Preferably, a distance of 2mm exists between the rubber film and the outer end face of the bottle cap, so that the aluminum foil is prevented from being punctured in the transportation process of the plastic bottle; during the use, because the plastic bottle is in the transportation, for the convenience of transportation, can arrange the plastic bottle in groups, and utilize the plastic film parcel with the plastic bottle of every group, in the parcel process of plastic film, because the inseparabler of parcel, can be to the bottle lid of plastic bottle production pressure, consequently, make and have 2 mm's distance between rubber membrane and the outer terminal surface of bottle lid, avoid in the parcel in-process, the plastic film punctures the aluminium foil to the pressure that the bottle lid produced, the too big explosion danger that leads to of pressure in having avoided the plastic bottle, the safety in utilization of plastic bottle has been improved, the result of use of plastic bottle has been strengthened.

Preferably, the bottle cap is provided with an adjusting unit in a space between the waterproof breathable film and the bottle, and the side wall of the bottle cap is provided with an air hole and a sliding chute; the adjusting unit comprises a first rotating plate, a second rotating plate and an L-shaped baffle; the first rotating plate is fixed on the side wall of the bottle cap, and a fan-shaped opening is formed in the first rotating plate; the second rotating plate is rotatably connected to the first rotating plate, is in a fan blade shape, and can open and close the fan-shaped opening through the rotation of the second rotating plate; the end part of the L-shaped baffle is fixed on the side wall of the second rotating plate, the L-shaped baffle can slide in the sliding groove along with the rotation of the second rotating plate, and the side wall of the L-shaped baffle is provided with a rubber plug, so that when the second rotating plate rotates to open the fan-shaped opening, the rubber plug can block the air hole; when the carbonated beverage is used, when a user punctures the aluminum foil to enable the sodium carbonate to react with the citric acid to generate carbon dioxide, the carbon dioxide can penetrate through the waterproof breathable film, the fan-shaped opening on the first rotating plate is in an open state, and the air hole is blocked by the rubber plug, so that the carbon dioxide can only be dissolved in the carbonated beverage; when a user feels that the amount of the carbon dioxide reaches the required amount, the L-shaped baffle is shifted to enable the second rotating plate to close the fan-shaped opening, and the carbon dioxide does not penetrate through the first rotating plate but is sprayed out through the air holes; therefore, the adjusting unit can provide the adjusting function for the user, enhance the use effect of the plastic bottle and bring good use experience for the user.

Preferably, the surface of the rubber plug is provided with an annular bulge to prevent the rubber plug from being ejected out after the air pressure in the bottle cap is too high; when the carbonated beverage is used, when a user punctures the aluminum foil to enable the sodium carbonate to react with the citric acid to generate carbon dioxide, the carbon dioxide can penetrate through the waterproof breathable film, the fan-shaped opening on the first rotating plate is in an open state, and the air hole is blocked by the rubber plug, so that the carbon dioxide can only be dissolved in the carbonated beverage; because the atmospheric pressure in the bottle lid is greater than the atmospheric pressure outside the bottle lid this moment for the rubber buffer probably the pressurized pop-up, and the annular arch that sets up on the rubber buffer surface then can play effectual separation effect, has strengthened the result of use of plastic bottle, brings good use experience for the user.

The invention has the following beneficial effects:

1. according to the plastic bottle for the beverage, the carbon dioxide gas is generated through the cooperation of the rubber film, the aluminum foil and the waterproof breathable film, so that the plastic bottle is dissolved in the beverage, and the taste of the beverage is improved; the using effect of the beverage bottle is improved, and good using experience is brought to a user.

2. According to the plastic bottle for the beverage, the release amount of carbon dioxide in the beverage bottle cap is adjusted through the matching of the first rotating plate, the second rotating plate and the L-shaped baffle, so that an adjusting effect is provided for a user, the using effect of the plastic bottle is enhanced, and good using experience is brought to the user.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a block diagram of an L-shaped baffle of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

FIG. 4 is a partial enlarged view of FIG. 3 at B;

FIG. 5 is a partial enlarged view at C in FIG. 3;

in the figure: the bottle comprises a bottle body 1, a bottle cap 2, a through hole 21, an air hole 22, a sliding chute 23, an inflation unit 3, a rubber film 31, an aluminum foil 32, a waterproof breathable film 33, an iron block 34, an adjusting unit 4, a first rotating plate 41, a fan-shaped opening 411, a second rotating plate 42, an L-shaped baffle 43, a rubber plug 431 and an annular bulge 432.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 5, the plastic bottle for beverage according to the present invention comprises a body 1, a cap 2 and an air charging unit 3; the top end of the bottle cap 2 is provided with a through hole 21; the inflation unit 3 is fixed in the bottle cap 2, and the inflation unit 3 comprises a rubber film 31, an aluminum foil 32 and a waterproof breathable film 33; the rubber film 31 is fixed on the side wall of the through hole 21 close to the outside of the bottle, so that the inside and the outside of the bottle are not communicated; the aluminum foil 32 is fixed on the side wall of the through hole 21 close to the inside of the bottle, so that the through hole 21 is not communicated with the inside of the bottle; sodium carbonate solid is arranged in the space between the rubber film 31 and the aluminum foil 32 in the through hole 21; the waterproof breathable film 33 is fixed on the side wall, close to the through hole 21, in the bottle cap 2; the bottle cap 2 is provided with a citric acid solution in a space between the waterproof breathable film 33 and the top end of the bottle cap 2; the rubber film 31, the aluminum foil 32 and the waterproof breathable film 33 are matched to generate carbon dioxide gas, so that the carbon dioxide gas is dissolved in the beverage, and the taste of the beverage is improved; when the carbonated beverage bottle is used, when a user does not drink the whole carbonated beverage bottle at one time and then opens the plastic bottle, the carbon dioxide content of the carbonated beverage in the bottle is reduced, so that the taste of the carbonated beverage is greatly reduced, at the moment, the bottle cap 2 is only required to be covered again, the rubber film 31 on the bottle cap 2 is pressed forcibly, when the rubber film 31 is pressed, a part of pressure is transmitted to the aluminum foil 32 through the sodium carbonate solid, when the aluminum foil 32 is punctured, the sodium carbonate solid can drop into the citric acid solution, and because the sodium carbonate is contacted with the citric acid, a large amount of carbon dioxide can be generated through reaction, the carbon dioxide can enter the bottle body 1 through the waterproof breathable film 33, so that the carbon dioxide content in the plastic bottle is rapidly increased, and the carbon dioxide is easily dissolved in water, so that the carbon dioxide content in the carbonated beverage is increased, the taste of the carbonated beverage is enhanced, and the use effect of the beverage bottle is improved, brings good use experience for users.

As an embodiment of the invention, the through hole 21 is provided with a slope close to the inside of the bottle, so that the diameter of the through hole 21 is larger closer to the inside of the bottle, thereby facilitating the movement of sodium carbonate solid; during the use, when the user presses rubber membrane 31 on bottle lid 2 hard, rubber membrane 31 has some pressure to transmit to aluminium foil 32 through the sodium carbonate solid after the pressurized, after aluminium foil 32 is stabbed, the sodium carbonate solid can drop to in the citric acid solution, in the in-process that drops of sodium carbonate, for avoiding the adhesion of sodium carbonate solid on through-hole 21 lateral wall, department is equipped with the inclination in through-hole 21 is close to the bottle, it is bigger to make through-hole 21 be close to the interior department diameter of bottle more, guaranteed when aluminium foil 32 is stabbed, the sodium carbonate solid in the through-hole 21 can fall down completely, can provide abundant carbon dioxide for the carbonated beverage in the body 1, the taste of carbonated beverage has been improved, the result of use of beverage bottle has been strengthened, bring good use experience for the user.

As an embodiment of the present invention, the through hole 21 is provided with an iron block 34 in a space sandwiched between the rubber film 31 and the aluminum foil 32, so that the inconvenience of puncturing the aluminum foil 32 is reduced; during the use, when the user presses the rubber membrane 31 on the bottle lid 2 hard, there is some pressure to transmit to the aluminium foil 32 through the sodium carbonate solid after the rubber membrane 31 is pressed, because the brittleness of the sodium carbonate solid is great, when the aluminium foil 32 has not been stabbed, the sodium carbonate solid has just been crumbled, make the pressing force that the rubber membrane 31 received can't transmit to the aluminium foil 32 completely, make the aluminium foil 32 the degree of difficulty that is stabbed great, and after being equipped with iron plate 34 in the space of through-hole 21 between rubber membrane 31 and aluminium foil 32, because iron plate 34 hardness is great, guaranteed that the pressing force that the rubber membrane 31 received is most can transmit to the aluminium foil 32 through iron plate 34, the degree of convenience of stabbing the aluminium foil 32 has been improved, the result of use of reinforcing plastic bottle, bring good use experience for the user.

As an embodiment of the present invention, a distance of 2mm exists between the rubber film 31 and the outer end face of the bottle cap 2, so as to avoid the aluminum foil 32 from being punctured during the transportation of the plastic bottle; during the use, because the plastic bottle is in the transportation, for the convenience of transportation, can arrange the plastic bottle in groups, and utilize the plastic film parcel with the plastic bottle of every group, in the parcel process of plastic film, because the inseparabler of parcel, can be to the 2 generate pressure of bottle lid of plastic bottle, consequently, make and have 2 mm's distance between the outer terminal surface of rubber membrane 31 and the 2 bottle lids, avoid in the parcel in-process, the plastic film punctures aluminium foil 32 to the pressure that 2 bottle lids produced, the too big and explosion hazard that leads to of pressure in the plastic bottle has been avoided, the safety in utilization of plastic bottle has been improved, the result of use of plastic bottle has been strengthened.

In one embodiment of the invention, the bottle cap 2 is provided with an adjusting unit 4 in a space between the waterproof breathable film 33 and the bottle, and the side wall of the bottle cap 2 is provided with an air hole 22 and a sliding groove 23; the adjusting unit 4 comprises a first rotating plate 41, a second rotating plate 42 and an L-shaped baffle 43; the first rotating plate 41 is fixed on the side wall of the bottle cap 2, and a fan-shaped opening 411 is formed in the first rotating plate 41; the second rotating plate 42 is rotatably connected to the first rotating plate 41, the second rotating plate 42 is in a fan blade shape, and the fan-shaped opening 411 can be opened and closed through the rotation of the second rotating plate 42; the end of the L-shaped baffle 43 is fixed on the side wall of the second rotating plate 42, the L-shaped baffle 43 can slide in the sliding groove 23 along with the rotation of the second rotating plate 42, and the rubber plug 431 is arranged on the side wall of the L-shaped baffle 43, so that when the second rotating plate 42 rotates to open the fan-shaped opening 411, the rubber plug 431 can block the air hole 22; when the carbonated beverage is used, after a user punctures the aluminum foil 32 to enable the sodium carbonate to react with the citric acid to generate carbon dioxide, the carbon dioxide can pass through the waterproof breathable film 33, the fan-shaped opening 411 on the first rotating plate 41 is in an open state, and the air hole 22 is blocked by the rubber plug 431, so that the carbon dioxide can only be dissolved in the carbonated beverage; when a user feels that the amount of carbon dioxide reaches the required amount, the L-shaped baffle 43 is pushed, so that the second rotating plate 42 closes the fan-shaped opening 411, and at the moment, the carbon dioxide does not penetrate through the first rotating plate 41 but is sprayed out through the air holes 22; therefore, the adjusting unit 4 can provide the adjusting function for the user, enhance the using effect of the plastic bottle and bring good using experience to the user.

As an embodiment of the present invention, the surface of the rubber stopper 431 is provided with an annular protrusion 432 to prevent the rubber stopper 431 from being ejected after the air pressure in the bottle cap 2 is too high; when the carbonated beverage is used, after a user punctures the aluminum foil 32 to enable the sodium carbonate to react with the citric acid to generate carbon dioxide, the carbon dioxide can pass through the waterproof breathable film 33, the fan-shaped opening 411 on the first rotating plate 41 is in an open state, and the air hole 22 is blocked by the rubber plug 431, so that the carbon dioxide can only be dissolved in the carbonated beverage; because the air pressure in the bottle cap 2 is greater than the air pressure outside the bottle cap 2, the rubber plug 431 can be pressed to pop out, and the annular bulge 432 arranged on the surface of the rubber plug 431 can play an effective blocking role, so that the using effect of the plastic bottle is enhanced, and good using experience is brought to a user.

When the carbonated beverage bottle is used, when a user does not drink the whole carbonated beverage bottle at one time and then opens the plastic bottle, the carbon dioxide content of the carbonated beverage in the bottle is reduced, so that the taste of the carbonated beverage is greatly reduced, at the moment, the bottle cap 2 is only required to be covered again, the rubber film 31 on the bottle cap 2 is pressed forcibly, when the rubber film 31 is pressed, a part of pressure is transmitted to the aluminum foil 32 through the sodium carbonate solid, when the aluminum foil 32 is punctured, the sodium carbonate solid can drop into the citric acid solution, and because the sodium carbonate is contacted with the citric acid, a large amount of carbon dioxide can be generated through reaction, the carbon dioxide can enter the bottle body 1 through the waterproof breathable film 33, so that the carbon dioxide content in the plastic bottle is rapidly increased, and the carbon dioxide is easily dissolved in water, so that the carbon dioxide content in the carbonated beverage is increased, the taste of the carbonated beverage is enhanced, and the use effect of the beverage bottle is improved, good use experience is brought to a user; when a user forcibly presses the rubber film 31 on the bottle cap 2, a part of pressure is transmitted to the aluminum foil 32 through the sodium carbonate solid after the rubber film 31 is pressed, after the aluminum foil 32 is punctured, the sodium carbonate solid can fall into the citric acid solution, and in the falling process of the sodium carbonate, in order to avoid the adhesion of the sodium carbonate solid on the side wall of the through hole 21, the through hole 21 is provided with a slope close to the inner part of the bottle, so that the diameter of the through hole 21 close to the inner part of the bottle is larger, and the sodium carbonate solid in the through hole 21 can completely fall down when the aluminum foil 32 is punctured, so that sufficient carbon dioxide can be provided for carbonated drinks in the bottle body 1, the taste of the carbonated drinks is improved, the using effect of the beverage bottle is enhanced, and good using experience is brought to the user; when a user presses the rubber film 31 on the bottle cap 2 with force, a part of pressure is transmitted to the aluminum foil 32 through the sodium carbonate solid after the rubber film 31 is pressed, because the brittleness of the sodium carbonate solid is high, when the aluminum foil 32 is not punctured, the sodium carbonate solid is already crushed, so that the pressing force borne by the rubber film 31 cannot be transmitted to the aluminum foil 32 completely, the puncturing difficulty of the aluminum foil 32 is high, and after the iron block 34 is arranged in the space between the rubber film 31 and the aluminum foil 32 in the through hole 21, because the hardness of the iron block 34 is high, most of the pressing force borne by the rubber film 31 can be transmitted to the aluminum foil 32 through the iron block 34, the convenience of puncturing the aluminum foil 32 is improved, the use effect of a plastic bottle is enhanced, and good use experience is brought to the user; in the process of packaging the plastic films, the plastic films are tightly packaged to generate pressure on the bottle caps 2 of the plastic bottles, so that a distance of 2mm exists between the rubber film 31 and the outer end faces of the bottle caps 2, the aluminum foil 32 is prevented from being punctured by the pressure generated by the plastic films on the bottle caps 2 in the packaging process, explosion danger caused by overlarge pressure in the plastic bottles is avoided, the use safety of the plastic bottles is improved, and the use effect of the plastic bottles is enhanced; when a user punctures the aluminum foil 32 to enable the sodium carbonate to react with the citric acid to generate carbon dioxide, the carbon dioxide can pass through the waterproof breathable film 33, the fan-shaped opening 411 on the first rotating plate 41 is in an open state, and the air hole 22 is blocked by the rubber plug 431, so that the carbon dioxide can only be dissolved in the carbonated beverage; when a user feels that the amount of carbon dioxide reaches the required amount, the L-shaped baffle 43 is pushed, so that the second rotating plate 42 closes the fan-shaped opening 411, and at the moment, the carbon dioxide does not penetrate through the first rotating plate 41 but is sprayed out through the air holes 22; therefore, the adjusting unit 4 can provide the adjusting function for the user, enhance the using effect of the plastic bottle and bring good using experience to the user; when a user punctures the aluminum foil 32 to enable the sodium carbonate to react with the citric acid to generate carbon dioxide, the carbon dioxide can pass through the waterproof breathable film 33, the fan-shaped opening 411 on the first rotating plate 41 is in an open state, and the air hole 22 is blocked by the rubber plug 431, so that the carbon dioxide can only be dissolved in the carbonated beverage; because the air pressure in the bottle cap 2 is greater than the air pressure outside the bottle cap 2, the rubber plug 431 can be pressed to pop out, and the annular bulge 432 arranged on the surface of the rubber plug 431 can play an effective blocking role, so that the using effect of the plastic bottle is enhanced, and good using experience is brought to a user.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A plastic bottle for beverages, characterized in that: it comprises a bottle body (1), a bottle cap (2) and an inflatable unit (3); the top of the bottle cap (2) is provided with a through hole (21); the The inflation unit (3) is fixed in the bottle cap (2), and the inflation unit (3) includes a rubber film (31), an aluminum foil (32) and a waterproof and breathable film (33); the rubber film (31) is fixed in the through hole (31). 21) on the side wall close to the outside of the bottle, so that the inside of the bottle and the outside of the bottle are not connected; the aluminum foil (32) is fixed on the side wall close to the inside of the bottle in the through hole (21), so that the through hole (21) and the bottle are The interior is not connected; the through hole (21) is provided with sodium carbonate solid in the space sandwiched between the rubber film (31) and the aluminum foil (32); the waterproof and breathable film (33) is fixed on the bottle cap (2) Inside the side wall close to the through hole (21); the bottle cap (2) is provided with a citric acid solution in the space sandwiched between the waterproof breathable membrane (33) and the top of the bottle cap (2); 31), the combination of the aluminum foil (32) and the waterproof breathable film (33) generates carbon dioxide gas, so that it is dissolved in the beverage and increases the taste of the beverage;

The through hole (21) is provided with a slope near the inside of the bottle, so that the closer the through hole (21) is to the inside of the bottle, the larger the diameter is, which is convenient for the movement of the sodium carbonate solid;

The through hole (21) is provided with an iron block (34) in the space sandwiched between the rubber film (31) and the aluminum foil (32), so as to reduce the inconvenience of puncturing the aluminum foil (32);

There is a distance of 2 mm between the rubber film (31) and the outer end surface of the bottle cap (2), so as to avoid puncturing the aluminum foil (32) during the transportation of the plastic bottle;

The bottle cap (2) is provided with an adjustment unit (4) in the space sandwiched between the waterproof breathable membrane (33) and the inside of the bottle, and the side wall of the bottle cap (2) is provided with an air hole (22) and a chute ( 23); the adjustment unit (4) includes a No. 1 turning plate (41), a No. 2 turning plate (42) and an L-shaped baffle (43); the No. 1 turning plate (41) is fixed on the bottle cap (2) ) on the side wall, and a fan-shaped opening (411) is opened on the No. 1 turning plate (41); the No. 2 turning plate (42) is rotatably connected to the No. 1 turning plate (41), and the No. 2 turning plate (42) ) in the shape of a fan blade, the fan-shaped opening (411) can be opened and closed by the rotation of the No. 2 turning plate (42); the end of the L-shaped baffle (43) is fixed on the side wall of the No. 2 turning plate (42) and the L-shaped baffle (43) can slide in the chute (23) with the rotation of the second turning plate (42). When the No. 2 rotary plate (42) is rotated to open the fan-shaped opening (411), the rubber plug (431) can block the air hole (22);

An annular protrusion (432) is provided on the surface of the rubber stopper (431) to prevent the rubber stopper (431) from being ejected after the air pressure in the bottle cap (2) is too high;

When the user does not drink the whole bottle of carbonated beverage at one time and then opens the plastic bottle, it is found that the carbon dioxide content of the carbonated beverage in the bottle decreases, resulting in a great decrease in the taste of the carbonated beverage. Press the rubber film (31) on the bottle cap (2) hard. When the rubber film (31) is pressed, a part of the pressure will be transferred to the aluminum foil (32) through the solid sodium carbonate. When the aluminum foil (32) is punctured, the carbonic acid The sodium solid will fall into the citric acid solution, because the sodium carbonate will react with the citric acid to generate a large amount of carbon dioxide, and the carbon dioxide will enter the bottle body (1) through the waterproof breathable membrane (33), so that the carbon dioxide in the plastic bottle The content increases rapidly, and the carbon dioxide is easily soluble in water, which increases the carbon dioxide content in the carbonated beverage and enhances the taste of the carbonated beverage. (21) There is a slope near the inside of the bottle, so that the diameter of the through hole (21) is larger as it is closer to the inside of the bottle, which ensures that when the aluminum foil (32) is punctured, the sodium carbonate solid in the through hole (21) can be If it falls completely, it can provide enough carbon dioxide to the carbonated beverage in the bottle body (1); and when the through hole (21) is provided with an iron block in the space between the rubber film (31) and the aluminum foil (32) After (34), due to the high hardness of the iron block (34), it is ensured that most of the pressing force on the rubber film (31) can be transmitted to the aluminum foil (32) through the iron block (34), which improves the puncture of the aluminum foil (32). ) convenience; there is a distance of 2 mm between the rubber film (31) and the outer end face of the bottle cap (2), so as to prevent the aluminum foil (32) from being punctured by the pressure generated by the plastic film on the bottle cap (2) during the wrapping process When the user punctures the aluminum foil (32), so that the sodium carbonate and citric acid react to generate carbon dioxide, the carbon dioxide will pass through the waterproof and breathable membrane (33). The fan-shaped opening (411) on the No. 1 rotary plate (41) is open, and the air hole (22) is also blocked by the rubber stopper (431), so that carbon dioxide can only be dissolved in carbonated beverages; when the user feels that the amount of carbon dioxide reaches When the amount is required, the fan-shaped opening (411) can be closed by the No. 2 rotating plate (42) by turning the L-shaped baffle plate (43), at this time, the carbon dioxide will not pass through the No. 1 rotating plate (41), but It is ejected through the air hole (22).