A set of airbags for bottle-shaped items

Abstract

This utility model relates to the field of air column bag technology, and in particular to a set-type airbag for bottle-shaped items. It includes a first front film, a second front film, and a back film. The left and right sides of the first front film and the left and right sides of the back film are sealed together by a first side heat-sealing line. The top edge of the first front film and the top edge of the back film are connected as one unit, forming a packaging space between the first front film and the back film to accommodate the bottle-shaped item's body. This utility model achieves tight wrapping of bottle-shaped items by setting different heat-sealing lines on the surface of the front and back air chambers, thereby forming a bottle top wrapping area, a bottle mouth wrapping area, an upper bottle body wrapping area, a lower bottle body wrapping area, and a bottle bottom wrapping area.

Description

Technical Field

[0001] This utility model relates to the field of air column bag technology, and in particular to a set-type airbag bag for bottle-shaped items. Background Technology

[0002] To protect products from impacts and shocks during transportation, air-filled shock-absorbing bags are commonly used. Current technology uses air-filled bags composed of several interconnected air columns, separated by heat-sealing lines. In practice, sometimes the air-filled bags need to be folded into a specific shape before being used to wrap the items for protection.

[0003] Bottle-shaped items, such as wine bottles and vases, have unique structures, with the mouth size being much smaller than the body size. When using existing air column bags to package bottle-shaped items, the air column bag can only fit snugly against the bottle body, leaving the mouth area unsupported. This causes the bottle to wobble during transportation and is easily damaged by external impacts. Utility Model Content

[0004] This application addresses the shortcomings of existing production technologies by providing a set of airbags for bottled items. These airbags can form different wrapping areas that tightly wrap different parts of the bottled items, providing all-around protection and preventing damage caused by shaking during transportation, thus improving the safety of product transportation.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A set-type airbag for bottle-shaped items includes a first front film, a second front film, and a back film. The left and right sides of the first front film and the left and right sides of the back film are sealed together by a first side heat-sealing line. The top edge of the first front film and the top edge of the back film are integrated, forming a packaging space between the first front film and the back film to accommodate the bottle-shaped item. The left and right sides of the second front film and the left and right sides of the back film are sealed together by a second side heat-sealing line. The bottom edge of the second front film and the bottom edge of the back film are integrated, forming a packaging space between the second front film and the back film to accommodate the bottom of the bottle-shaped item. The bottom edge of the first front film and the top edge of the second front film can be separated to allow the bottle-shaped item to be inserted into the airbag. The bag has an installation opening; the first front film is formed by a first front outer film and a first front inner film arranged front to form a first front air cavity. The upper part of the first front air cavity is provided with two left-right symmetrical front arc heat-sealing lines to form a bottle top wrapping area. The middle part of the first front air cavity is provided with a number of heat-sealing lines in a longitudinal direction to form a bottle mouth wrapping area. The lower part of the first front air cavity is provided with a number of heat-sealing lines in a longitudinal direction to form an upper bottle body wrapping area, where B > A, A is a natural number, and B is a positive integer; the second front film is formed by a second front outer film and a second front inner film arranged front to form a second front air cavity. The upper part of the second front air cavity is provided with several heat-sealing lines in a longitudinal direction to form a lower bottle body wrapping area. The lower part of the second front air cavity is provided with several circular heat-sealing lines along the same circumference to form a bottle bottom wrapping area;

[0007] The back membrane is formed by a back outer membrane and a back inner membrane arranged correspondingly at the front and back to form a back air cavity. The top of the back air cavity is connected to the top of the first front air cavity, and the bottom of the back air cavity is connected to the bottom of the second front air cavity. The top edge of the back outer membrane is connected to the top edge of the first front outer membrane, the top edge of the back inner membrane is connected to the top edge of the first front inner membrane, the bottom edge of the back outer membrane is connected to the bottom edge of the second front outer membrane, and the bottom edge of the back inner membrane is connected to the bottom edge of the second front inner membrane. The upper part of the back air cavity is provided with two left-right symmetrical back arc heat-sealing lines to form a bottle top wrapping area. The upper part of the back air cavity is provided with A heat-sealing lines in the vertical direction to form a bottle mouth wrapping area. The lower part of the back air cavity is provided with B heat-sealing lines in the vertical direction to form an upper bottle body wrapping area. The lower part of the back air cavity is provided with several heat-sealing lines in the vertical direction to form a lower bottle body wrapping area. The lower part of the back air cavity is provided with several back circular heat-sealing lines along the same circumference to form a bottle bottom wrapping area.

[0008] Furthermore, multiple annular heat-sealing lines are set at the center of the inner circle of the two front arc heat-sealing lines, and the multiple annular heat-sealing lines are distributed along the same circumferential direction.

[0009] Furthermore, the left and right sides of the first front air chamber are sealed by vertically arranged side heat sealing lines, and the bottom of the first front air chamber is sealed by a horizontally arranged inlet heat sealing line. The upper end of the side heat sealing line extends horizontally to one end of the front arc heat sealing line, and the lower end of the side heat sealing line extends all the way to one end of the inlet heat sealing line.

[0010] Furthermore, a primary longitudinal heat seal line is longitudinally arranged in the middle of the first front air chamber, with the upper end of the primary longitudinal heat seal line extending to the horizontal position of the lower end of the front arc heat seal line. Five secondary longitudinal heat seal lines are longitudinally arranged in the lower part of the first front air chamber, with the upper end of the secondary longitudinal heat seal line extending to the horizontal position of the lower end of the primary longitudinal heat seal line and the lower end of the secondary longitudinal heat seal line extending to the air inlet heat seal line.

[0011] Furthermore, two valve membranes are provided between the first front outer membrane and the first front inner membrane. The bottom edges of the two valve membranes, the first front outer membrane, and the first front inner membrane are connected as one unit by an air inlet heat seal line. At least one heat-resistant layer is coated between the bottom edges of the two valve membranes by printing. The heat-resistant layer spans the air inlet heat seal line horizontally. An air valve inlet is formed at the position of the heat-resistant layer. The bottom edges of the first front outer membrane and the first front inner membrane are sealed by a horizontally arranged air inlet channel bottom edge heat seal line. An air inlet channel is provided between the air inlet channel bottom edge heat seal line and the air inlet heat seal line. The air inlet channel is connected to the air valve inlet. An inflation opening is provided on one side of the air inlet channel, and an air inlet channel side heat seal line is provided on the other side of the air inlet channel for sealing.

[0012] Furthermore, the left and right sides of the second front air chamber are sealed by vertically arranged side heat sealing lines, and the top edge of the second front air chamber is sealed by a horizontally arranged top heat sealing line. The two ends of the top heat sealing line of the second front air chamber are respectively connected to the upper ends of the side heat sealing lines of the left and right second front air chambers.

[0013] Furthermore, two frontal three-level longitudinal heat sealing lines are longitudinally arranged on the upper part of the second frontal air cavity, and the upper end of the frontal three-level longitudinal heat sealing lines extends to the position of the top edge heat sealing line of the second frontal air cavity. Three frontal annular heat sealing lines are arranged along the same circumference on the lower part of the second frontal air cavity. The upper end of the frontal annular heat sealing lines located at the left and right ends of the three frontal annular heat sealing lines extends laterally to the position of the side heat sealing line of the second frontal air cavity.

[0014] Furthermore, multiple annular heat-sealing lines are provided at the center of the inner circle of the two back arc heat-sealing lines, and these multiple annular heat-sealing lines are distributed along the same circumferential direction.

[0015] Furthermore, the left and right sides of the back air cavity are sealed by vertically arranged back air cavity side heat sealing lines. The upper end of the back air cavity side heat sealing line extends laterally to one end of the back arc heat sealing line, and the lower end of the back air cavity side heat sealing line extends all the way to the bottom of the back membrane.

[0016] Furthermore, a primary longitudinal heat-sealing line is longitudinally arranged in the upper part of the back air cavity, extending from the upper end of the primary longitudinal heat-sealing line to the horizontal position of the lower end of the back arc heat-sealing line. Five secondary longitudinal heat-sealing lines are longitudinally arranged in the lower part of the back air cavity, extending from the upper end of the secondary longitudinal heat-sealing line to the horizontal position of the lower end of the primary longitudinal heat-sealing line. Two tertiary longitudinal heat-sealing lines are longitudinally arranged in the lower part of the back air cavity, extending from the upper end of the tertiary longitudinal heat-sealing line to the horizontal position of the lower end of the secondary longitudinal heat-sealing line. Three circular heat-sealing lines are arranged along the same circumference in the lower part of the back air cavity. The upper end of the circular heat-sealing lines at the left and right ends of the three circular heat-sealing lines extends laterally to the position of the side heat-sealing line of the back air cavity.

[0017] The beneficial effects of this utility model are as follows:

[0018] This invention creates a bottle top wrapping area, a bottle mouth wrapping area, an upper bottle body wrapping area, a lower bottle body wrapping area, and a bottle bottom wrapping area by setting different heat-sealing lines on the front and back air chamber surfaces. The bottle top wrapping area inflates and adheres tightly to the top of the bottle-shaped item. The bottle mouth wrapping area of ​​the airbag inflates and adheres tightly to the area around the bottle mouth of the bottle-shaped item. The bottle body wrapping area of ​​the airbag inflates and adheres tightly to the area around the bottle body and the side of the bottom of the bottle-shaped item. The bottle bottom wrapping area of ​​the airbag inflates and adheres tightly to the bottom of the bottle. The bottom of the bottle-shaped item is tightly wrapped, providing all-around protection and preventing damage caused by shaking during transportation, thus improving the safety of product transportation. After inflation, the bottle-shaped item can be easily filled in, improving packaging convenience. The invention uses a first front film, a second front film, and a back film to form two upper and lower interlocking spaces, with the upper and lower parts of the bottle-shaped item respectively wrapped within these spaces, facilitating packaging operations. Attached Figure Description

[0019] Figure 1 This is a front structural view of the present invention.

[0020] Figure 2 This is a structural diagram of the back of this utility model.

[0021] Figure 3 This is a cross-sectional structural diagram of the first frontal membrane of this utility model.

[0022] Figure 4 This is a cross-sectional structural diagram of the valve diaphragm of this utility model.

[0023] Figure 5 This is a cross-sectional view of the second front membrane of this utility model.

[0024] Figure 6 This is a cross-sectional structural diagram of the back membrane of this utility model.

[0025] Wherein: 100, first frontal membrane; 110, first frontal outer membrane; 120, first frontal inner membrane; 130, frontal arc heat-sealing line; 131, frontal annular heat-sealing line; 140, first frontal air cavity side heat-sealing line; 150, air inlet heat-sealing line; 160, frontal primary longitudinal heat-sealing line; 170, frontal secondary longitudinal heat-sealing line; 180, air inlet channel bottom edge heat-sealing line; 181, air inlet channel side heat-sealing line; 190, air inlet channel; 200, second frontal membrane; 210, second frontal outer membrane; 220, second frontal inner membrane; 230, second frontal air cavity top edge heat-sealing line; 240. Second front air cavity side heat seal line; 250. Front third-level longitudinal heat seal line; 260. Front circular heat seal line; 300. Back membrane; 310. Back outer membrane; 320. Back inner membrane; 330. Back arc heat seal line; 331. Back ring heat seal line; 340. Back air cavity side heat seal line; 350. Back first-level longitudinal heat seal line; 360. Back second-level longitudinal heat seal line; 370. Back third-level longitudinal heat seal line; 380. Back circular heat seal line; 400. Valve membrane; 500. Heat-resistant layer; 600. First side heat seal line; 700. Second side heat seal line. Detailed Implementation

[0026] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0027] like Figure 1 and Figure 2As shown, a set-type airbag for bottle-shaped items includes a first front film 100, a second front film 200, and a back film 300. The left and right sides of the first front film 100 and the left and right sides of the back film 300 are sealed together by a first side heat-sealing line 600. The top edge of the first front film 100 and the top edge of the back film 300 are integrated, forming a packaging space between the first front film 100 and the back film 300 to accommodate the bottle-shaped item. The left and right sides of the second front film 200 and the left and right sides of the back film 300 are sealed together by a second side heat-sealing line 700. The bottom edge of the second front film 200 and the bottom edge of the back film 300 are integrated, forming a packaging space between the second front film 200 and the back film 300 to accommodate the bottom of the bottle-shaped item. The bottom edge of the first front film 100 and the top edge of the second front film 200 are separated to form an installation opening for inserting the bottle-shaped item into the airbag. In use, first inflate the first front film 100, the second front film 200, and the back film 300, and then insert the bottle-shaped item into the packaging space through the installation opening between the first front film 100 and the second front film 200.

[0028] like Figure 3 As shown, the first front membrane 100 is formed by the first front outer membrane 110 and the first front inner membrane 120 arranged in a front-to-back manner to form a first front air cavity.

[0029] like Figure 1 As shown, two symmetrical arc-shaped heat-sealing lines 130 are arranged at the upper part of the first front air cavity to form the bottle top covering area. A heat-sealing lines of number A are arranged vertically in the middle of the first front air cavity to form the bottle mouth covering area. B heat-sealing lines of number B are arranged vertically at the lower part of the first front air cavity to form the upper bottle body covering area. B > A, where A is a natural number and B is a positive integer.

[0030] like Figure 1 As shown, the left and right sides of the first front air chamber are sealed by vertically arranged side heat sealing lines 140, and the bottom of the first front air chamber is sealed by horizontally arranged inlet heat sealing lines 150. The upper end of the side heat sealing line 140 extends horizontally to one end of the front arc heat sealing line 130, and the lower end of the side heat sealing line 140 extends all the way to one end of the inlet heat sealing line 150.

[0031] To ensure the bottle top wrapping area fits more closely to the top of the bottled item, such as... Figure 1 As shown, multiple annular heat-sealing lines 131 are arranged at the center of the inner circle of the two front arc heat-sealing lines 130, and the multiple annular heat-sealing lines 131 are distributed along the same circumferential direction. When wrapping, the arrangement of the annular heat-sealing lines 131 and the front arc heat-sealing lines 130 allows the bottle top wrapping area to fit more closely to the top of the bottled item.

[0032] like Figure 1 As shown, a primary longitudinal heat-sealing line 160 is longitudinally arranged in the middle of the first front air cavity. The primary longitudinal heat-sealing line 160 divides the middle part of the first front air cavity into two parallel primary air cavities. The upper end of the primary longitudinal heat-sealing line 160 extends to the horizontal position of the lower end of the front arc heat-sealing line 130. When inflated, the primary air cavity is tightly wrapped around the mouth of the bottle-shaped item.

[0033] like Figure 1 As shown, five secondary longitudinal heat-sealing lines 170 are longitudinally arranged at the lower part of the first front air chamber, and these five secondary longitudinal heat-sealing lines 170 are equidistantly distributed along the width direction. These five secondary longitudinal heat-sealing lines 170 divide the lower part of the first front air chamber into six parallel secondary air chambers. The upper end of each secondary longitudinal heat-sealing line 170 extends to the horizontal position of the lower end of the primary longitudinal heat-sealing line 160, and the lower end of each secondary longitudinal heat-sealing line 170 extends to the air inlet heat-sealing line 150. During inflation, the secondary air chambers are tightly fitted and wrapped around the body of the bottle-shaped item.

[0034] like Figure 1 and Figure 4 As shown, two valve membranes 400 are disposed between the first front outer membrane 110 and the first front inner membrane 120. The bottom edges of the two valve membranes 400, the first front outer membrane 110, and the first front inner membrane 120 are connected as one unit by the air inlet heat sealing line 150. At least one heat-resistant layer 500 is coated between the bottom edges of the two valve membranes 400 by printing. The at least one heat-resistant layer 500 is distributed along the width direction of the valve membrane 400. The heat-resistant layer 500 spans the air inlet heat sealing line 150 vertically. The heat-resistant layer 500 is coated and processed before the heat sealing process of the air inlet heat sealing line 150. The heat-resistant layer 500 is not heat-sealed and connected as one unit during the heat sealing process, thus forming the air valve inlet.

[0035] like Figure 1 As shown, the bottom edge of the first front outer membrane 110 and the bottom edge of the first front inner membrane 120 are sealed by a horizontally arranged air intake channel bottom edge heat sealing line 180. An air intake channel 190 is provided between the air intake channel bottom edge heat sealing line 180 and the air intake port heat sealing line 150. The air intake channel 190 is connected to the air valve air intake port. An inflation opening is provided on one side of the air intake channel 190, and an air intake channel side heat sealing line 181 is provided on the other side of the air intake channel 190 for sealing.

[0036] During inflation, an external inflation device is inserted into the inflation opening. Air enters the air intake channel 190 through the inflation port, then enters the valve chamber between the two valve diaphragms 400 through the valve inlet, and then enters the first front air chamber. When the first front air chamber is filled with air and inflates, it compresses the valve diaphragm 400, causing the two valve diaphragms 400 to fit tightly together, automatically sealing the valve inlet and preventing gas leakage from the first front air chamber.

[0037] like Figure 5 As shown, the second front membrane 200 is formed by the second front outer membrane 210 and the second front inner membrane 220 arranged in front and back respectively to form a second front air cavity.

[0038] like Figure 1 As shown, several heat-sealing lines are longitudinally arranged on the upper part of the second front air cavity to form the lower bottle body wrapping area, and several circular heat-sealing lines 260 are arranged along the same circumference on the lower part of the second front air cavity to form the bottle bottom wrapping area.

[0039] like Figure 1 As shown, the left and right sides of the second front air chamber are sealed by vertically arranged side heat sealing lines 240, and the top edge of the second front air chamber is sealed by horizontally arranged top heat sealing lines 230. The two ends of the top heat sealing lines 230 are respectively connected to the upper ends of the side heat sealing lines 240 of the left and right second front air chambers.

[0040] like Figure 1 As shown, two frontal triple-stage longitudinal heat-sealing lines 250 are longitudinally arranged on the upper part of the second frontal air chamber. The upper ends of the frontal triple-stage longitudinal heat-sealing lines 250 extend to the position of the top edge heat-sealing line 230 of the second frontal air chamber. The two frontal triple-stage longitudinal heat-sealing lines 250 can divide the upper part of the second frontal air chamber into three parallel triple-stage air chambers. When inflated, the triple-stage air chambers are tightly wrapped around the lower part of the bottle-shaped item.

[0041] like Figure 1 As shown, the lower part of the second front air chamber has three front annular heat-sealing lines 260 arranged along the same circumference. The upper ends of the front annular heat-sealing lines 260 located at the left and right ends of the three front annular heat-sealing lines 260 extend laterally to the position of the side heat-sealing line 240 of the second front air chamber. When inflated, the inner circle of the three front annular heat-sealing lines 260 forms an air chamber that supports the bottom of the bottle.

[0042] like Figure 6As shown, the back membrane 300 is formed by a back outer membrane 310 and a back inner membrane 320 arranged correspondingly at the front and back, forming a back air cavity. The top of the back air cavity is connected to the top of the first front air cavity, and the bottom of the back air cavity is connected to the bottom of the second front air cavity. The top edge of the back outer membrane 310 is connected to the top edge of the first front outer membrane 110, and the top edge of the back inner membrane 320 is connected to the top edge of the first front inner membrane 120. The bottom edge of the back outer membrane 310 is connected to the bottom edge of the second front outer membrane 210, and the bottom edge of the back inner membrane 320 is connected to the bottom edge of the second front inner membrane 220.

[0043] like Figure 2 As shown, two symmetrical arc-shaped heat-sealing lines 330 are arranged at the upper part of the back air cavity to form the bottle top covering area. A number of heat-sealing lines are arranged longitudinally in the upper part of the back air cavity to form the bottle mouth covering area. B number of heat-sealing lines are arranged longitudinally in the lower part of the back air cavity to form the upper bottle body covering area, where B > A, A is a natural number, and B is a positive integer. Several annular heat-sealing lines 380 are arranged along the same circumference at the lower part of the back air cavity to form the bottle bottom covering area.

[0044] like Figure 2 As shown, the left and right sides of the back air cavity are sealed by vertically arranged back air cavity side heat sealing lines 340. The upper end of the back air cavity side heat sealing line 340 extends laterally to one end of the back arc heat sealing line 330, and the lower end of the back air cavity side heat sealing line 340 extends all the way to the bottom of the back membrane 300.

[0045] To ensure the bottle top wrapping area fits more closely to the top of the bottled item, such as... Figure 2 As shown, multiple annular heat-sealing lines 331 are provided at the center of the inner circle of the two back arc heat-sealing lines 330, and the multiple annular heat-sealing lines 331 are distributed along the same circumferential direction. When wrapping, the back arc heat-sealing lines 330 and the back annular heat-sealing lines 331 allow the bottle top wrapping area to fit more closely to the top of the bottled item.

[0046] like Figure 2 As shown, a primary longitudinal heat-sealing line 350 is longitudinally arranged in the upper part of the rear air chamber. The primary longitudinal heat-sealing line 350 divides the upper part of the rear air chamber into two parallel primary air chambers. The upper end of the primary longitudinal heat-sealing line 350 extends to the horizontal position of the lower end of the rear arc heat-sealing line 330. When inflated, the primary air chamber is tightly wrapped around the mouth of the bottle-shaped item.

[0047] like Figure 2As shown, five secondary longitudinal heat-sealing lines 360 are longitudinally arranged in the lower part of the rear air cavity, and these five secondary longitudinal heat-sealing lines 360 are equidistantly distributed along the width direction. These five secondary longitudinal heat-sealing lines 360 divide the lower part of the rear air cavity into six parallel secondary air cavities. The upper ends of the secondary longitudinal heat-sealing lines 360 extend to the horizontal position where the lower end of the primary longitudinal heat-sealing line 350 is located. During inflation, the secondary air cavities are tightly fitted and wrapped around the upper part of the bottle-shaped item.

[0048] like Figure 2 As shown, two longitudinal heat-sealing lines 370 are longitudinally arranged in the lower part of the rear air chamber. These two lines divide the lower part of the rear air chamber into three parallel tertiary air chambers. The upper end of the tertiary heat-sealing line 370 extends to the horizontal position of the lower end of the secondary heat-sealing line 360. During inflation, the tertiary air chambers are tightly wrapped around the lower part of the bottle-shaped item.

[0049] like Figure 2 As shown, three circular heat-sealing lines 380 are arranged along the same circumference at the lower part of the back air chamber. The upper ends of the three circular heat-sealing lines 380 located at the left and right ends extend laterally to the position of the side heat-sealing line 340 of the back air chamber. When inflated, the inner circle of the three circular heat-sealing lines 380 forms an air chamber that supports the bottom of the bottle.

[0050] The working principle of this invention is as follows: When packaging bottle-shaped items, the airbag is first inflated. During inflation, an external inflation device is inserted into the inflation port. Air enters the air inlet channel 190 through the inflation port, then enters the valve chamber between the two valve membranes 400 through the valve inlet, and then sequentially enters the first front air chamber, the back air chamber, and the second front air chamber. When the valve chamber is full and inflated, it compresses the valve membrane 400, causing the two valve membranes 400 to fit tightly together, automatically sealing the valve inlet and preventing gas leakage from the membrane chamber. After the first front air chamber, the back air chamber, and the second front air chamber are full, a bottle top wrapping area, a bottle mouth wrapping area, a bottle body wrapping area, and a bottle bottom wrapping area are sequentially formed on the front and back sides. The bottle-shaped item is placed into the airbag through the installation opening. The top area of ​​the airbag is inflated and pressed tightly against the top of the bottle; the mouth area is inflated and pressed tightly against the mouth of the bottle; the body area is inflated and pressed tightly against the body and bottom sides of the bottle; and the bottom area is inflated and pressed tightly against the bottom of the bottle. This achieves a tight seal around the bottle, preventing damage caused by shaking during transportation and improving product transport safety.

[0051] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A set of airbags for bottle-shaped items, characterized in that: It includes a first front film (100), a second front film (200), and a back film (300). The left and right sides of the first front film (100) and the left and right sides of the back film (300) are sealed and connected by a first side heat-sealing line (600). The top edge of the first front film (100) and the top edge of the back film (300) are connected as one piece. The first front film (100) and the back film (300) form a bottle body for accommodating bottle-shaped items. The packaging space; the left and right sides of the second front film (200) and the left and right sides of the back film (300) are sealed and connected by the second side heat sealing line (700), the bottom edge of the second front film (200) and the bottom edge of the back film (300) are connected as one piece, and the packaging space for the bottom of the bottle to accommodate bottle-shaped items is formed between the second front film (200) and the back film (300); the bottom edge of the first front film (100) and the second front film (200) The top edges are separated to form an installation opening for the bottle-shaped item to be inserted into the airbag; the first front membrane (100) is formed by the first front outer membrane (110) and the first front inner membrane (120) arranged in front and back to form a first front air cavity. The upper part of the first front air cavity is provided with two left and right symmetrical front arc heat sealing lines (130) to form the bottle top wrapping area. The middle part of the first front air cavity is provided with a number of heat sealing lines in the longitudinal direction to form the bottle mouth wrapping area. The lower part of the first front air cavity is provided with a number of heat sealing lines in the longitudinal direction to form the upper bottle body wrapping area. B>A, where A is a natural number and B is a positive integer; the second front membrane (200) is formed by the second front outer membrane (210) and the second front inner membrane (220) arranged in front and back to form a second front air cavity. The upper part of the second front air cavity is provided with several heat sealing lines in the longitudinal direction to form the lower bottle body wrapping area. The lower part of the second front air cavity is provided with several circular heat sealing lines (260) along the same circumference to form the bottle bottom wrapping area; The back membrane (300) is formed by a back outer membrane (310) and a back inner membrane (320) arranged correspondingly at the front and back to form a back air cavity. The top of the back air cavity is connected to the top of the first front air cavity, and the bottom of the back air cavity is connected to the bottom of the second front air cavity. The top edge of the back outer membrane (310) is connected to the top edge of the first front outer membrane (110) as a whole, and the top edge of the back inner membrane (320) is connected to the top edge of the first front inner membrane (120) as a whole. The bottom edge of the back outer membrane (310) is connected to the bottom edge of the second front outer membrane (210) as a whole. 20) The bottom edge and the bottom edge of the second front inner film (220) are connected as one piece; two symmetrical back arc heat-sealing lines (330) are set on the upper part of the back air cavity to form the bottle top wrapping area; A heat-sealing lines are set longitudinally in the upper part of the back air cavity to form the bottle mouth wrapping area; B heat-sealing lines are set longitudinally in the lower part of the back air cavity to form the upper bottle body wrapping area; several heat-sealing lines are set longitudinally in the lower part of the back air cavity to form the lower bottle body wrapping area; several back ring heat-sealing lines (380) are set along the same circumference in the lower part of the back air cavity to form the bottle bottom wrapping area.

2. The set-type airbag for bottle-shaped items as described in claim 1, characterized in that: Multiple frontal annular heat-sealing lines (131) are provided at the center of the inner circle of the two frontal arc heat-sealing lines (130), and the multiple frontal annular heat-sealing lines (131) are distributed along the same circumferential direction.

3. The kit-type airbag for bottle-shaped items as described in claim 1, characterized in that: The first front air chamber is sealed on both sides by vertically arranged first front air chamber side heat sealing line (140), and the bottom of the first front air chamber is sealed by horizontally arranged air inlet heat sealing line (150). The upper end of the first front air chamber side heat sealing line (140) extends horizontally to one end of the front arc heat sealing line (130), and the lower end of the first front air chamber side heat sealing line (140) extends all the way to one end of the air inlet heat sealing line (150).

4. A set-type airbag for bottle-shaped items as described in claim 3, characterized in that: A primary longitudinal heat seal line (160) is longitudinally arranged in the middle of the first front air cavity. The upper end of the primary longitudinal heat seal line (160) extends to the horizontal position of the lower end of the front arc heat seal line (130). Five secondary longitudinal heat seal lines (170) are longitudinally arranged in the lower part of the first front air cavity. The upper end of the secondary longitudinal heat seal line (170) extends to the horizontal position of the lower end of the primary longitudinal heat seal line (160). The lower end of the secondary longitudinal heat seal line (170) extends to the air inlet heat seal line (150).

5. A set-type airbag for bottle-shaped items as described in claim 4, characterized in that: Two valve membranes (400) are disposed between the first front outer membrane (110) and the first front inner membrane (120). The bottom edges of the two valve membranes (400), the first front outer membrane (110), and the first front inner membrane (120) are connected as one unit by an air inlet heat sealing line (150). At least one heat-resistant layer (500) is coated between the bottom edges of the two valve membranes (400) by printing. The heat-resistant layer (500) spans the air inlet heat sealing line (150) vertically. At the position of the heat-resistant layer (500), a heat-resistant layer is formed. The bottom edge of the first front outer membrane (110) and the bottom edge of the first front inner membrane (120) are sealed by a horizontally arranged bottom heat-sealing line (180) of the air inlet. An air inlet channel (190) is provided between the bottom heat-sealing line (180) of the air inlet and the heat-sealing line (150) of the air inlet. The air inlet channel (190) is connected to the air inlet of the valve. An inflation opening is provided on one side of the air inlet channel (190), and a side heat-sealing line (181) of the air inlet channel (190) is provided on the other side of the air inlet channel (190) for sealing.

6. A set-type airbag for bottle-shaped items as described in claim 1, characterized in that: The left and right sides of the second front air cavity are sealed by vertically arranged side heat sealing lines (240), and the top edge of the second front air cavity is sealed by horizontally arranged top heat sealing lines (230). The two ends of the top heat sealing lines (230) of the second front air cavity are respectively connected to the upper ends of the side heat sealing lines (240) of the left and right second front air cavities.

7. A set-type airbag for bottle-shaped articles as described in claim 6, characterized in that: The upper part of the second front air cavity is provided with two front three-level longitudinal heat sealing lines (250). The upper end of the front three-level longitudinal heat sealing line (250) extends to the position of the top edge heat sealing line (230) of the second front air cavity. The lower part of the second front air cavity is provided with three front annular heat sealing lines (260) along the same circumference. The upper end of the front annular heat sealing line (260) located at the left and right ends of the three front annular heat sealing lines (260) extends laterally to the position of the side heat sealing line (240) of the second front air cavity.

8. A set-type airbag for bottle-shaped articles as described in claim 1, characterized in that: Multiple back-circular heat-sealing lines (331) are provided at the center of the inner circle of the two back-circular heat-sealing lines (330), and the multiple back-circular heat-sealing lines (331) are distributed along the same circumferential direction.

9. A set-type airbag for bottle-shaped articles as described in claim 1, characterized in that: The left and right sides of the back air cavity are sealed by vertically arranged back air cavity side heat sealing lines (340). The upper end of the back air cavity side heat sealing line (340) extends laterally to one end of the back arc heat sealing line (330), and the lower end of the back air cavity side heat sealing line (340) extends all the way to the bottom of the back membrane (300).

10. A set-type airbag for bottle-shaped articles as described in claim 9, characterized in that: A primary longitudinal heat-sealing line (350) is longitudinally arranged in the upper part of the back air cavity. The upper end of the primary longitudinal heat-sealing line (350) extends to the horizontal position of the lower end of the back arc heat-sealing line (330). Five secondary longitudinal heat-sealing lines (360) are longitudinally arranged in the lower part of the back air cavity. The upper end of the secondary longitudinal heat-sealing line (360) extends to the horizontal position of the lower end of the primary longitudinal heat-sealing line (350). Two tertiary longitudinal heat-sealing lines (370) are longitudinally arranged in the lower part of the back air cavity. The upper end of the tertiary longitudinal heat-sealing line (370) extends to the horizontal position of the lower end of the secondary longitudinal heat-sealing line (360). Three circular heat-sealing lines (380) are arranged along the same circumference in the lower part of the back air cavity. The upper end of the circular heat-sealing line (380) located at the left and right ends of the three circular heat-sealing lines (380) extends laterally to the position of the side heat-sealing line (340) of the back air cavity.

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