CN214932095U - Bag-in-bag type inflatable bag - Google Patents

Abstract

The utility model discloses a bag-in-bag type air bag belongs to the technical field of the air seal body, including the inner bag body and the outer bag body, form between the inner bag body and the outer bag body and aerify the chamber, the inner bag body is equipped with the chamber that holds that is used for holding the product, the inner bag body is close to the edge and is equipped with the spacing line of product, the spacing line of product with be protection portion between the edge of the inner bag body and the outer bag body. The utility model discloses the gas bag can avoid the product to touch the sack edge, and the damage is avoided to the corner of better protection product.

Description

Bag-in-bag type inflatable bag

Technical Field

The utility model relates to an air seal technical field, concretely relates to bag-in-bag air bag.

Background

The inflatable packaging bag has the functions of protection and buffering, is light and low in manufacturing cost, and is widely applied to packaging of different products, particularly transportation and packaging of fragile or valuable articles.

In order to strengthen the protection to the product, some bag-in-bag type air bags begin to appear in the industry, form the inflation cavity between inner bag and outer bag, and then protect the product in the inner bag, however, this kind of air bag has a very big shortcoming, the product is easy because one side of gravity extrusion air bag, lead to the gas of air bag one side to be crowded away, touch the bag edge, make the product position of this side lose the buffer protection, collide with other article easily or receive jolting, and then the corner that leads to the product is easy to be collided with or damaged, and the product contacts the bag edge for a long time, constantly rub, also puncture the bag easily, make the air bag take place to lose the risk of losing heart.

If the material and the structure are additionally added for protection in order to protect the corners of the product, a large amount of cost is increased, the packaging or operation is troublesome, and too much space is occupied.

Therefore, how to protect the product corners without adding a large amount of materials and package the product conveniently becomes a technical problem in the field.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a bag-in-bag type inflatable bag, which can avoid the product from touching the edge of the bag and better protect the corners of the product from being damaged.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a bag-in-bag air bag, includes the inner bag body and the outer bag body, form between the inner bag body and the outer bag body and aerify the chamber, the inner bag body is equipped with the chamber that holds that is used for holding the product, the inner bag body is close to the edge and is equipped with the product spacing line, the product spacing line with be protection portion between the edge of the inner bag body and the outer bag body.

Further measures taken are: the product limiting line comprises a bottom edge limiting line and two side edge limiting lines, and the bottom edge limiting line and the two side edge limiting lines are respectively arranged at the bottom and two sides of the inner bag body.

Further measures taken are: the top ends of the two side limit lines are connected with a bent part, the top ends of the two side limit lines extend to the adjacent edges of the inner bag body through the bent parts, and a space is formed between the top ends of the protection parts on the two sides of the inner bag body and the top of the inner bag body; the bending part is in arc transition connection with the top end of the side limit line.

Further measures taken are: the edge of the inner bag body and the edge of the outer bag body are sealed through edge heat sealing lines, so that an inflation cavity is formed between the inner bag body and the outer bag body, two ends of the product limiting line are intersected with the edge heat sealing lines, so that the product limiting line is adjacent to the edge heat sealing lines, a closed protective part is formed between the product limiting line and the adjacent edge heat sealing lines

Further measures taken are: the protection part is provided with an air passage.

Further measures taken are: the inflation cavity comprises a left cavity and a right cavity, and the left cavity and the right cavity are communicated with each other through air passages, so that the inside of the inflation cavity is integrally communicated.

Further measures taken are: the air passage is arranged in one or more protection parts at the bottom and on two sides of the inner bag body.

Further measures taken are: the inflatable cavity is provided with an air inlet valve, the air inlet valve is formed by hot pressing of a valve film, a unidirectional inflation channel is arranged on the valve film, more than two S-shaped bent air guide channels are arranged below the inflation channel, and the inflation channel is communicated with the inflatable cavity through the S-shaped bent air guide channels.

Further measures taken are: the bottom of the inflation channel is connected with bent air guide heat-sealing lines, and S-shaped bent air guide channels are formed between the air guide heat-sealing lines.

Further measures taken are: the valve is characterized in that four bent and parallel air guide heat-sealing lines are arranged on the valve film, the tops of the two air guide heat-sealing lines in the middle are connected, and the S-shaped bent air guide channel is formed between the air guide heat-sealing line on the outer side and the adjacent air guide heat-sealing line in the middle.

Further measures taken are: the outer bag body is provided with a hand-held ring hole.

Further measures taken are: the outer bag body and the inner bag body are respectively formed by hot pressing of two outer cavity body membranes and two inner cavity body membranes, and the two inner cavity body membranes are arranged between the two outer cavity body membranes;

the edges of the inner bag body and the outer bag body are sealed through edge heat-sealing lines, the edge heat-sealing lines positioned on the two sides and the bottom of the inner bag body and the outer bag body enable the two outer cavity body membranes and the two inner cavity body membranes to be completely adhered, the edge heat-sealing lines positioned on the top of the inner bag body and the top of the outer bag body enable the outer cavity body membranes to be adhered to the adjacent inner cavity body membranes, and at least one air inlet opening used for arranging an air inlet valve is reserved on each edge heat-sealing line;

the product limiting line is arranged on the inner cavity body membrane, and the two inner cavity body membranes are adhered through the product limiting line; the air passage is arranged on the two layers of inner cavity body membranes.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model forms an inflation cavity between the inner bag body and the outer bag body, and a product limit line is arranged at the edge of the inner bag body, so that the position of the product in the accommodating cavity can be limited to a certain extent by the product limit line, and the phenomenon that the product moves too much in the accommodating cavity and the product is protected better is avoided; a protection part is arranged between the product limiting line and the edges of the inner bag body and the outer bag body, so that excessive positions in the containing cavity can not be occupied, product corners can be protected, the product is prevented from touching the edges of the inner bag body and the outer bag body, the product part touching the edges loses air buffer protection, and the corners of the product are easy to collide and collide to cause damage; moreover, the edges of the product are easy to puncture after being touched with the edges of the inflatable bags for a long time, so that the risk of air leakage of the inflatable cavity is caused, and the inflatable bags cannot play a role in buffering protection; and the tradition does not set up the gas-filled bag of spacing line and need artifical carefully, carefully place the product in the middle of the gas-filled bag, recharge the better protection product of gas just ability, the operation is got up more troublesome, and the utility model discloses a set up spacing line, can more convenient, accurate place the product, even place the product at will, also can protect the corner of product, the packing operation is more simple and convenient, swift.

Drawings

Fig. 1 is a schematic structural view of an uninflated state according to an embodiment of the present invention;

fig. 2 is a schematic view of an overall structure of the inflatable air bag according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of an uninflated state according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of an inflated three-dimensional structure according to an embodiment of the present invention;

wherein the arrows in figure 1 indicate the direction of the gas flow during inflation.

In the figure: 1. an inner bag body; 2. an outer bag body; 3. edge heat sealing lines; 4. an inflation cavity; 401. a left cavity; 402. a right cavity; 5. an accommodating chamber; 6. a product limiting line; 601. a bottom edge limiting line; 602. a side limit line; 603. a bending section; 7. a protection part; 8. a gas passing passage; 9. an intake valve; 901. an inflation channel; 902. s, bending the air guide channel; 903. a gas-conducting heat-sealing line; 10. a valve membrane; 11. a hand-held pull ring hole; 12. an outer cavity membrane; 13. an inner cavity body membrane; 14. and (5) producing the product.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments. In the present specification, the terms "upper", "inner", "middle", "left", "right" and "one" are used for convenience of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the corresponding parts may be changed or adjusted without substantial technical changes.

As shown in fig. 1-2, a bag-in-bag type airbag includes an inner bag body 1 and an outer bag body 2, an inflation cavity 4 is formed between the inner bag body 1 and the outer bag body 2, the inner bag body is provided with a containing cavity 5 for containing a product 14, a product limiting line 6 is arranged at a position, close to the edge, of the inner bag body 1, and a protection portion 7 is arranged between the product limiting line 6 and the edges of the inner bag body 1 and the outer bag body 2.

An inflation cavity 4 is formed between the inner bag body 1 and the outer bag body 2, and a product limiting line 6 is arranged at the edge of the inner bag body 1, so that the position of a product 14 in the accommodating cavity 5 can be limited and limited to a certain extent through the product limiting line 6, the phenomenon that the product 14 moves in the accommodating cavity 5 in an overlarge range is avoided, and the product 14 is protected better; the product limiting line 6 is arranged between the edges of the inner bag body 1 and the outer bag body 2 and is provided with a protection part 7, so that excessive positions in the accommodating cavity 5 cannot be occupied, the corners of the product 14 can be protected, the product 14 is prevented from touching the edges of the inner bag body 1 and the outer bag body 2, the part of the product 14 touching the edges is protected by air cushion, and the corners of the product 14 are easy to collide and damage; moreover, the edge heat of the inflatable bag is easily punctured when the edge of the product 14 touches the edge heat of the inflatable bag for a long time, so that the risk of air leakage occurs in the inflatable cavity 4, and the inflatable bag cannot play a role in buffering protection; and the tradition does not set up the gas bag of spacing line 6 and need artifical carefully, carefully place product 14 in the middle of the gas bag, just can be better protection product 14, the operation is got up more troublesome, and the utility model discloses a set up spacing line 6, can be more convenient, accurate place product 14, place at will, also can protect the corner of product 14, the packing operation is more simple and convenient, swift.

As shown in fig. 1-2, the product spacing line 6 includes a bottom side spacing line 601 and two side spacing lines 602, and the bottom side spacing line 601 and the two side spacing lines 602 are respectively disposed at the bottom and two sides of the inner bag body 1, so as to better protect the two sides and the bottom of the product 14, avoid the product 14 from contacting the edge heat seal lines 3 at the two sides and the bottom due to the action of gravity or shaking, and through the product spacing lines 6 at the two sides and the bottom, the position of the product 14 can be better limited, and avoid the product 14 from shifting.

As shown in fig. 3, the top ends of the two side limiting lines 602 are connected with the bending portions 603, the top ends of the two side limiting lines 602 extend to the edges of the adjacent inner bag bodies 1 through the bending portions 603, and a space is provided between the top ends of the protecting portions 7 at the two sides of the inner bag body 1 and the top of the inner bag body 1, so that the top end opening is not influenced or limited while the product 14 is better limited, and the product 14 is conveniently put in; for arc transitional coupling between flexion 603 and the top of side spacing line 602, through the arc transition for putting into of product 14 is more smooth and easy, avoids appearing the closed angle simultaneously, leads to the single-point atress, makes the bag body damaged easily, and the arc transition is soft, and the dispersion atress is more easy, and the gas bag is more durable.

As shown in fig. 3, the edges of the inner bag body 1 and the outer bag body 2 are sealed by the edge heat-seal lines 3, so that an inflation cavity 4 is formed between the inner bag body 1 and the outer bag body 2, and both ends of the product limiting line 6 are intersected with the edge heat-seal lines 3, so that a closed protection part 7 is formed between the product limiting line 6 and the adjacent edge heat-seal lines 3. Protection part 7 is equipped with air flue 8, it includes left side cavity 401 and right side cavity 402 to aerify chamber 4, left side cavity 401 and right side cavity 402 communicate each other through air flue 8, make aerify the inside integrative intercommunication in chamber 4, through setting up protection part 7, and set up air flue 8 in protection part 7, thereby when keeping aerifing chamber 4 relatively confined, inside can circulate each other, and then make the air current of left side cavity 401 and right side cavity 402 even, the dispersion, better protection product 14, and when aerifing, only need an inflation valve, can aerify whole aerifing chamber 4, the global design is exquisite, it is more convenient to operate, it can be the air through hole to cross the air flue, cross the air flue etc., unlimited form, can realize inside gaseous conduction effect can.

As shown in fig. 3, the air passage 8 is disposed in one or more protection portions 7 at the bottom and at two sides of the inner bag body 1, so as to facilitate air circulation, increase air flow, and accelerate air flow. The limit line can be arranged to be parallel to the adjacent edge heat seal line 3, and when the product 14 is inflated, the inflating cavity 4 is filled with air, the product limit line 6 is concave towards the middle, and therefore the product 14 can be better fixed.

As shown in fig. 3, the outer bag body 2 is provided with a handle ring hole 11 so as to be conveniently carried and transported. The inflation cavity 4 is provided with an air inlet valve 9, the air inlet valve 9 is formed by hot pressing of a valve film 10, a one-way inflation channel 901 is arranged on the valve film 10, more than two S-shaped bent air guide channels 902 are arranged below the inflation channel 901, and the inflation channel 901 is communicated with the inflation cavity 4 through the S-shaped bent air guide channels 902. Through setting up the curved air duct 902 of S more than two, curved S curved air duct 902 can increase the airflow when making the air current smooth and easy for the gas velocity. And aerify passageway 901 bottom and be connected with crooked air guide heat-seal line 903, form the crooked air guide way 902 of S between the air guide heat-seal line 903, through air guide heat-seal line 903, can also carry out local heat-seal to valve membrane 10 when forming the crooked air guide way 902 of S for it is more convenient when aerifing, and accomplish the gas and accomplish the back, valve self-sealing, and sealed effect is better, prevents that the air from revealing. Four bent side-by-side air guide heat-sealing lines 903 are arranged on the valve film 10, the tops of the two middle air guide heat-sealing lines 903 are connected, and an S-shaped bent air guide channel 902 is formed between the outer air guide heat-sealing line 903 and the adjacent middle air guide heat-sealing line 903, so that the air guide smoothness is improved, and the sealing effect is improved.

As shown in fig. 1 to 4, the outer bag body 2 and the inner bag body 1 are formed by hot pressing two outer cavity body films 12 and two inner cavity body films 13, respectively, and the two inner cavity body films 13 are disposed between the two outer cavity body films 12; the edges of the inner bag body 1 and the outer bag body 2 are sealed through edge heat-sealing lines 3, the edge heat-sealing lines 3 positioned on the two sides and the bottom of the inner bag body 1 and the outer bag body 2 enable two layers of outer cavity body membranes 12 and two layers of inner cavity body membranes 13 to be completely adhered, the edge heat-sealing lines 3 positioned on the top of the inner bag body 1 and the top of the outer bag body 2 enable the outer cavity body membranes 12 to be adhered to the adjacent inner cavity body membranes 13, so that a containing cavity 5 with an opening at the top end is formed, and at least one air inlet opening used for arranging an air inlet valve 9 is reserved on the edge heat-sealing lines 3 and used for arranging a valve; the product limiting line 6 is arranged on the inner cavity body film 13, and the two layers of inner cavity body films 13 are adhered through the product limiting line 6, so that a product 14 in the inner bag is limited; cross the air flue 8 and set up on two-layer inner chamber body membrane 13 to make things convenient for inside gaseous circulation and dispersion, and even atress, simultaneously and two-layer inner chamber body membrane 13 sets up between two-layer outer chamber body membrane 12, the edge of inner bag body 1 and outer bag body 2 all carries out the heat-seal through same edge heat seal line 3, makes the inner bag body can be through edge heat seal line 3 relatively fixed in outer bag body 2, further keeps holistic steadiness.

The bag-in-bag type inflatable bag can be manufactured by the following manufacturing method, and comprises the following steps:

(1) overlapping the two inner cavity body films 13, performing hot pressing on the edge, close to the inner cavity body film 13, of the inner cavity body film to form a product limiting line 6, adhering the two inner cavity body films 13 through the product limiting line 6, forming an accommodating cavity 5 with an opening at the top end between the two inner cavity body films 13, and limiting the position of a product 14 in the accommodating cavity 5 through the product limiting line 6;

(2) a gas passage 8 is arranged between the edge of the inner cavity body membrane 13 and the product limiting line 6, and the gas passage 8 penetrates through the two inner cavity body membranes 13;

(3) placing one of the outer cavity films 12 outside one of the inner cavity films 13, and heat-sealing the outer cavity film 12 and the top edge of the adjacent inner cavity film 13 to form an edge sealing line; then, another layer of outer cavity body film 12 is placed on the outer side of another layer of inner cavity body film 13, and the outer cavity body film 12 and the top edge of the adjacent inner cavity body film 13 are subjected to heat sealing to form another edge sealing line;

(4) and (3) performing heat sealing on the two sides and the bottom edges of the two inner cavity body films 13 and the two outer cavity body films 12 to form other edge heat sealing lines 3, so that an inflation cavity 4 is formed between the inner cavity body films 13 and the outer cavity body films 12, and the inflation cavity 4 is communicated through the air passage 8 to form an integrally communicated inflation cavity, thereby obtaining a finished product.

Carry out hot pressing through earlier to inner chamber body membrane 13 and form product spacing line 6 to set up air flue 8, thereby the heat-seal forms inner structure, then carries out the heat-seal with the outer cavity body membrane 12 in the outside again, and two membranes at top separately carry out the heat-seal, make the top form the opening, carry out the heat-seal to other edges again at last, thereby can heat-seal through two-layer inner chamber body membrane 13 and two-layer outer cavity body membrane 12 and form integrative, the exquisite bag-type gas bag in bag of structure. The manufacturing method creates a new manufacturing process flow, is precise in layout, convenient to operate and efficient, realizes an internal delicate structure by using simple materials, and has a remarkable effect and an obvious effect.

Before the heat sealing is carried out to form a top edge sealing line, the air inlet valve 9 is arranged on the top edge of one of the inner cavity body membranes 13 and the outer cavity body membrane 12, then the heat sealing is carried out to form the top edge sealing line, and an air inlet of the air inlet valve 9 is reserved, so that the valve is convenient to arrange.

When a top edge sealing line is formed by heat sealing, a partition plate is arranged between the tops of the two inner cavity bodies, so that the top edge of the inner cavity body film 13 is adhered to the top edge of the adjacent outer cavity body film 12, and an opening is formed between the top edges of the two inner cavity body films 13, so that the top edge of one inner cavity body film 13 is conveniently adhered to the top edge of the adjacent outer cavity body film 12 without influencing the other inner cavity body film 13.

Of course, both the two inner cavity body films 13 and the two outer cavity body films 12 can be formed by folding one cavity body film.

During the use, put into holding chamber 5 with product 14 earlier, then inflate intake valve 9, gaseous through aerifing logical, S curved air guide way 902 gets into aerifing chamber 4, and make the air of left side cavity 401 and right side cavity 402 circulate each other through passing gas passage 8, and fill up whole aerifing chamber 4, and then to holding the space department inflation of product 14 in the chamber 5, and product spacing line 6 is also concave to holding product 14 in the chamber 5, and then fix and protect whole and the corner of product 14 to product 14' S whole, greatly reduced collision or the influence of jolting, guarantee that the corner of product 14 avoids damaging, therefore, the clothes hanger is strong in practicability, and market application prospect is wide.

The embodiment of the present invention is not limited to this, according to the above-mentioned content of the present invention, the common technical knowledge and the conventional means in the field are utilized, without departing from the basic technical idea of the present invention, the present invention can also make other modifications, replacements or combinations in various forms, all falling within the protection scope of the present invention.

Claims (11)

1. A bag-in-bag type inflatable bag is characterized in that: including the inner bag body and the outer bag body, form between the inner bag body and the outer bag body and aerify the chamber, the inner bag body is equipped with the chamber that holds that is used for holding the product, the inner bag body is close to the edge and is equipped with the product spacing line, the product spacing line with be protection portion between the edge of the inner bag body and the outer bag body.

2. The bag-in-bag airbag of claim 1, wherein: the product limiting line comprises a bottom edge limiting line and two side edge limiting lines, and the bottom edge limiting line and the two side edge limiting lines are respectively arranged at the bottom and two sides of the inner bag body.

3. A bag-in-bag airbag as defined in claim 2 wherein: the top ends of the two side limit lines are connected with a bent part, the top ends of the two side limit lines extend to the adjacent edges of the inner bag body through the bent parts, and a space is formed between the top ends of the protection parts on the two sides of the inner bag body and the top of the inner bag body; the bending part is in arc transition connection with the top end of the side limit line.

4. The bag-in-bag airbag of claim 1, wherein: the edge of the inner bag body and the edge of the outer bag body are sealed through edge heat sealing lines, so that an inflation cavity is formed between the inner bag body and the outer bag body, two ends of the product limiting line are intersected with the edge heat sealing lines, and the product limiting line is adjacent to the edge heat sealing lines to form a closed protection part.

5. The bag-in-bag airbag of claim 4, wherein: the protection part is provided with an air passage; the inflation cavity comprises a left cavity and a right cavity, and the left cavity and the right cavity are communicated with each other through air passages, so that the inside of the inflation cavity is integrally communicated.

6. The bag-in-bag airbag of claim 5, wherein: the air passage is arranged in one or more protection parts at the bottom and on two sides of the inner bag body.

7. The bag-in-bag airbag of claim 1, wherein: the inflatable cavity is provided with an air inlet valve, the air inlet valve is formed by hot pressing of a valve film, a unidirectional inflation channel is arranged on the valve film, more than two S-shaped bent air guide channels are arranged below the inflation channel, and the inflation channel is communicated with the inflatable cavity through the S-shaped bent air guide channels.

8. The bag-in-bag airbag of claim 7, wherein: the bottom of the inflation channel is connected with bent air guide heat-sealing lines, and S-shaped bent air guide channels are formed between the air guide heat-sealing lines.

9. The bag-in-bag airbag of claim 8, wherein: the valve is characterized in that four bent and parallel air guide heat-sealing lines are arranged on the valve film, the tops of the two air guide heat-sealing lines in the middle are connected, and the S-shaped bent air guide channel is formed between the air guide heat-sealing line on the outer side and the adjacent air guide heat-sealing line in the middle.

10. The bag-in-bag airbag of claim 1, wherein: the outer bag body is provided with a hand-held ring hole.

11. The bag-in-bag airbag of claim 1, wherein: the outer bag body and the inner bag body are respectively formed by hot pressing of two outer cavity body membranes and two inner cavity body membranes, and the two inner cavity body membranes are arranged between the two outer cavity body membranes;

the edges of the inner bag body and the outer bag body are sealed through edge heat-sealing lines, the edge heat-sealing lines positioned on the two sides and the bottom of the inner bag body and the outer bag body enable the two outer cavity body membranes and the two inner cavity body membranes to be completely adhered, the edge heat-sealing lines positioned on the top of the inner bag body and the top of the outer bag body enable the outer cavity body membranes to be adhered to the adjacent inner cavity body membranes, and at least one air inlet opening used for arranging an air inlet valve is reserved on each edge heat-sealing line;

the product limiting line is arranged on the inner cavity body membrane, and the two inner cavity body membranes are adhered through the product limiting line; the air passing channel is arranged on the two layers of the inner cavity body membranes.

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