Air energy air column bag for inflator

Abstract

The utility model relates to an air energy air column bag for an inflator. The air energy air column bag is provided with an air column piece. The air column piece comprises an upper-layer film and a lower-layer film, a plurality of air column heat sealing strips which are arranged in parallel are arranged on the upper-layer film and the lower-layer film in a heat sealing mode, an air column strip is formed between every two adjacent air column heat sealing strips, and an air inlet is formed in the upper end of each air column strip; an air inlet channel is formed between the upper-layer film and the lower-layer film above the air inlet and the air inlet after the upper-layer film and the lower-layer film are subjected to heat sealing through a first channel heat sealing strip and a second channel heat sealing strip, and the first channel heat sealing strip and the second channel heat sealing strip are arranged at the uppermost end of the air column piece in a bilateral symmetry mode; an air leakage channel is formed between the first channel heat sealing strip and the second channel heat sealing strip; a first sealing line used for sealing the air inlet is arranged on the air column piece, a second sealing line is further arranged at the lower end of the air column piece, and a non-return part is arranged at the position, close to the air inlet, in the air column strip. According to the utility model, the gas filled into the gas column strip can be limited, and the protection stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of air energy air column bags for inflator. BACKGROUND

[0002] Air column bag, also known as buffer air column bag, inflatable bag, bubble column bag or column inflatable bag, is a new type of packaging material, mainly using natural air to fill. This packaging bag is made of LLDPE and NYLON material by lamination or co-extrusion, with good tensile resistance and balanced characteristics.

[0003] After searching, patent announcement No. CN207843858U, patent name is a kind of air column bag for automatic inflator, its specific structure is: air column bag includes upper and lower two films, upper and lower two films are heat sealed with air column strip, the air column strip is separated by air column heat sealing line, each air column strip corresponds at least one air inlet;The two films above the air inlet are separated from each other, forming an inflation channel;A sealing line is heat sealed above the air column bag, a lower heat sealing line is heat sealed at the bottom, the sealing line and the lower heat sealing line form a closed circuit space, thereby realizing the air storage function of air column strip. This structure can save materials, reduce production cost, reduce process control difficulty, and improve production efficiency;But in use, since the inflation channel and the air column strip are both open structures, there is no restriction on the gas filled, and part of the gas will leak from the air column strip during heat sealing, resulting in insufficient gas in the air column strip and unstable protection performance. SUMMARY

[0004] The utility model aims at providing a kind of air energy air column bags for inflator, can limit the gas filled in air column strip, increase the stability of protection.

[0005] The technical scheme for realizing the utility model is: the utility model has air column piece;Air column piece includes upper film and lower film, upper film and lower film are heat sealed with multiple parallel air column heat sealing strips, adjacent two air column heat sealing strips form air column strip, the upper end of air column strip is provided with air inlet formed by air column heat sealing strip for gas to enter;The upper film and lower film above the air inlet are heat sealed by the heat sealing of first channel heat sealing strip and second channel heat sealing strip, and form air inlet channel for the gas pipe of inflator to be inserted between the air inlet and the air inlet, the first channel heat sealing strip and the second channel heat sealing strip are symmetrically arranged at the uppermost end of air column piece, and the first channel heat sealing strip and the second channel heat sealing strip form a gas release channel for connecting the outside and the air inlet channel;The first sealing line for sealing air inlet is arranged on the air column piece, and the second sealing line for sealing the end of air column strip away from air inlet is also arranged on the air column piece, and the first sealing line and the second sealing line form a closed circuit space;Air column strip is provided with non-return portion close to air inlet.

[0006] Furthermore, the air column heat sealing strip includes a straight section and a constricted section. The straight section extends along the extension direction of the air column strip, and the constricted section is located at the air inlet. The constricted sections of two adjacent air column heat sealing strips are arranged opposite each other to form the air inlet. The check valve includes two first check valves, two second check valves, and two third check valves. One end of each of the two first check valves is symmetrically fixed to the constricted sections of two adjacent air column heat sealing strips. One end of each of the two second check valves and one end of each of the two third check valves are symmetrically fixed to the constricted sections of adjacent air column heat sealing strips. On the straight section of the heat-sealing strips of two adjacent air columns; the first check bar, the second check bar, and the third check bar are arranged sequentially from top to bottom inside the air column strip; the other ends of the two third check bars approach each other to form a pressure after the air column strip is inflated, and the other ends of the corresponding second check bars make contact; the other ends of the two second check bars approach each other to form a pressure after the air column strip is inflated, and the other ends of the corresponding first check bars make contact; the other ends of the two first check bars approach each other to form a pressure after the air column strip is inflated and are used to block the air inlet.

[0007] Furthermore, the air column is equipped with an exhaust assembly, which includes a plug, a connecting rod, and an adhesive strip. One side of the plug is fixedly connected to one end of the connecting rod, and the adhesive strip is fixedly connected to the other end of the connecting rod. The air column is provided with a through hole for the connecting rod to be inserted, and the thickness of the through hole is the same as the thickness of the connecting rod. The plug is located inside the air column, and the adhesive strip is located outside the air column and is adhered to the outer wall of the air column. The side of the plug facing the through hole has a bonding surface that can adhere to the inner wall of the air column after it is inflated.

[0008] Furthermore, the adhesive strip has outward-extending, free-pulling sections at both ends.

[0009] Furthermore, the first sealing line and the second sealing line can be one of a straight line, a wavy line, a curve, or an irregularly shaped extension line, wherein the irregularly shaped extension line is a line segment in which the bending angle and the extension length after bending are set randomly.

[0010] Furthermore, the side of the air column component is provided with crease lines that are easy to cut or tear. The crease lines can be serrated or composed of multiple connecting segments that are evenly spaced along the extension direction of the side of the air column component.

[0011] The utility model discloses a positive effect has: (1) the utility model discloses the air column strip in the air inlet place is equipped with the reverse portion, and the reverse portion includes two first reverse strip, two second reverse strip and two third reverse strip, and one end of two first reverse strip is fixedly arranged on the necked section of two adjacent air column heat -seal strip respectively, and one end of two second reverse strip and two third reverse strip are fixedly arranged on the straight section of two adjacent air column heat -seal strip respectively, and the first reverse strip, the second reverse strip and the third reverse strip are pushed to the air column after the air column enters the air column strip, and the air inlet is limited in multiple sections, avoids the gas from the air inlet after inflating, and the gas in the air column strip after heat -sealing reaches the protection requirement of air column spare.

[0012] (2) the upper layer film and the lower layer film of the air inlet's upper portion are formed into the air inlet channel that the air pipe of inflator can insert after the heat sealing of first channel heat -seal strip and second channel heat -seal strip, and first channel heat -seal strip and second channel heat -seal strip are symmetrically arranged at the uppermost end of air column spare, and the air release channel for communicating outside and air inlet channel is formed between first channel heat -seal strip and second channel heat -seal strip, and the air release channel can exhaust the excess gas in the air channel during the inflating process, and the air column spare is hindered due to the influence of too much gas on the upper layer film and the lower layer film during the inflating transportation process.

[0013] (3) the air column strip of the utility model is equipped with exhaust assembly, and the exhaust assembly includes plugging block, connecting rod and adhesive strip, and one side of plugging block is fixedly connected with one end of connecting rod, and adhesive strip is fixedly connected with the other end of connecting rod, and the air column strip is equipped with through -hole that connecting rod can insert, and plugging block can move towards the through -hole by the pressure of gas after the air column strip inflates to plug the through -hole, and further closes the through -hole by the adhesion of adhesive strip.

[0014] (4) the both ends of adhesive strip are equipped with the free pulling portion that extends outward and forms, and the pulling portion can pull adhesive strip to take out plugging block from the air column strip when the gas in the air column strip needs to be exhausted, realizes quick exhaust, and the air column spare is convenient for the exhaust recovery treatment after use.

[0015] (5) the side of the utility model discloses the air column spare is equipped with the indentation line that is convenient for cutting or tearing, and the air column spare is convenient for using separately from the adjacent air column spare after inflating and heat sealing. ACCURATE DRAWINGS

[0016] In order to make the content of the utility model more easily be clearly understood, the utility model is further explained in detail below according to specific embodiment and combining with the drawings, wherein

[0017] Figure 1 It is the whole structure schematic diagram of the utility model.

[0018] Figure 2 is the side view of the utility model after inflation;

[0019] Figure 3 is Figure 1 is the partial enlarged view of A in the middle;

[0020] Figure 4 is the assembly schematic view of the exhaust assembly of the utility model;

[0021] Figure 5 is the structure schematic view of the exhaust assembly of the utility model;

[0022] Figure 6 is the arrangement schematic view of the connecting section of the utility model. DETAILED DESCRIPTION

[0023] see Figures 1 to 6 , the utility model has air column spare 1, air column spare 1 includes upper film and lower film, and a plurality of parallelly arranged air column heat sealing strips 2 are heat sealed on the upper film and the lower film, air column strip 3 is formed between adjacent two air column heat sealing strips 2, and the upper end of air column strip 3 is provided with the air inlet 31 formed by air column heat sealing strip 2 and can be used for the gas inlet;The upper film and the lower film above the air inlet 31 are heat sealed by the heat sealing of first channel heat sealing strip 4 and second channel heat sealing strip 5, and the air inlet 31 is formed between the air inlet 31 and the air inlet channel 6 that can be inserted by the gas pipe of inflator, the first channel heat sealing strip 4 and the second channel heat sealing strip 5 are symmetrically arranged at the uppermost end of air column spare 1, and the first channel heat sealing strip 4 and the second channel heat sealing strip 5 form the air release channel 7 for connecting the outside with the air inlet channel 6;First sealing line 11 for sealing air inlet 31 is arranged on air column spare 1, and second sealing line 12 for sealing the end of air column strip 3 away from air inlet 31 is also arranged on air column spare 1, and the first sealing line 11 and the second sealing line 12 form a closed space;Air column strip 3 is provided with non-return portion 8 close to air inlet 31.

[0024] The inflation channel can ensure that the inflation gas is reduced in leakage during inflation, and the efficiency of inflation is ensured.

[0025] In the inflation process, in order to ensure that air column spare 1 can continuously move, it is necessary to cut first channel heat sealing strip 4 and second channel heat sealing strip 5.

[0026] The air column heat sealing strip 2 comprises a straight strip section 21 and a necked section 22, the straight strip section 21 is arranged along the extension direction of the air column strip 3, the necked section 22 is arranged at the position of the air inlet 31, the necked sections 22 of two adjacent air column heat sealing strips 2 are oppositely arranged to form the air inlet 31; the reverse stopping part 8 comprises two first reverse stopping strips 81, two second reverse stopping strips 82 and two third reverse stopping strips 83, one end of the two first reverse stopping strips 81 is respectively and symmetrically fixed on the necked section 22 of the two adjacent air column heat sealing strips 2, one end of the two second reverse stopping strips 82 and one end of the two third reverse stopping strips 83 are respectively and symmetrically fixed on the straight strip section 21 of the two adjacent air column heat sealing strips 2; the first reverse stopping strip 81, the second reverse stopping strip 82 and the third reverse stopping strip 83 are sequentially arranged from top to bottom in the air column strip 3; the other end of the two third reverse stopping strips 83 is close to each other to form a pressing after the air column strip 3 is inflated, and the other end of the corresponding second reverse stopping strip 82 forms a contact, the other end of the two second reverse stopping strips 82 is close to each other to form a pressing after the air column strip 3 is inflated, and the other end of the corresponding first reverse stopping strip 81 forms a contact, the other end of the two first reverse stopping strips 81 is close to each other to form a pressing after the air column strip 3 is inflated, and is used for blocking the air inlet 31.

[0027] By pushing the first reverse stopping strip 81, the second reverse stopping strip 82 and the third reverse stopping strip 83 after the air column enters the air column strip 3, the air inlet 31 is limited in multiple sections, air leakage from the air inlet 31 after inflation is avoided, and it is ensured that the gas in the air column strip 3 after heat sealing meets the protection requirements of the air column part 1.

[0028] The air column strip 3 is provided with an exhaust assembly 9, the exhaust assembly 9 comprises a blocking block 91, a connecting rod 92 and an adhesive strip 93, one side of the blocking block 91 is fixedly connected with one end of the connecting rod 92, the adhesive strip 93 is fixedly connected with the other end of the connecting rod 92, the air column strip 3 is provided with a through hole for inserting the connecting rod 92, the thickness of the through hole is consistent with the thickness of the connecting rod 92; the blocking block 91 is located in the inside of the air column strip 3, the adhesive strip 93 is located outside the air column strip 3 and adheres to the outer wall of the air column strip 3, one side of the blocking block 91 facing the through hole is provided with a fitting surface (911) which can fit the inner wall of the air column strip 3 after the air column strip 3 is inflated; the blocking block 91 can move towards the through hole under the pressure of the gas after the air column strip 3 is inflated to block the through hole, and the through hole is further closed by the adhesive strip 93.

[0029] The two ends of the adhesive strip 93 are provided with free pulling parts 931 extending outward, the pulling parts 931 can pull out the blocking block 91 from the air column strip 3 by pulling the adhesive strip 93 when it is needed to exhaust the gas in the air column strip 3, so as to realize quick exhaust and facilitate the exhaust recovery treatment of the air column part 1 after use.

[0030] The first sealing line 11 and the second sealing line 12 can be in one of a straight line, a wavy line, a curved line or a special-shaped extending line, wherein the special-shaped extending line is a line segment with disordered bending angles and extending lengths after bending.

[0031] The side edge of the air column piece 1 is further provided with a score line 13 for facilitating cutting or tearing, and the score line 13 can be in a zigzag shape or composed of a plurality of connecting segments 111 uniformly and regularly arranged along the extending direction of the side edge of the air column piece 1.

[0032] The working principle of the utility model is as follows: the air filling channel in the air column piece 1 is sleeved on the air pipe of the air filling machine, and then air filling is performed; the gas enters the air column strip 3 from the air inlet 31; after the gas enters the air column strip 3, the gas successively extrudes the third check valve 83, the second check valve 82 and the first check valve 81; the two third check valves 83 are pressed against each other and move towards the second check valve 82 after being extruded by the gas; the two third check valves 83 are pressed against each other and move towards the first check valve 81 after being extruded by the gas and pushed by the third check valve 83; the two first check valves 81 are pressed against each other to block the air inlet 31 after being extruded by the gas and pushed by the second check valve 82; and the gas leakage is reduced.

[0033] When the air column piece 1 moves under the driving of air filling, the specific cutting part in the air filling device can cut the air filling channel, so as to ensure the smooth movement of the air column piece 1.

[0034] When the air column piece 1 needs to be recycled after use, the pulling part 931 of the adhesive strip 93 is pulled to pull out the blocking block 91 in the air column strip 3 from the through hole, so that the gas is discharged from the through hole and the air exhaust work is performed.

[0035] The above-described specific embodiments further specifically describe the purpose, technical scheme and beneficial effects of the utility model, and it should be understood that the above-described specific embodiments are only specific embodiments of the utility model and are not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An air column bag for inflator, having an air column member (1); characterized by: The air column piece (1) comprises an upper film and a lower film, a plurality of parallel air column heat sealing strips (2) are heat sealed on the upper film and the lower film, air column strips (3) are formed between two adjacent air column heat sealing strips (2), and the upper end of the air column strip (3) is provided with an air inlet (31) formed by the air column heat sealing strip (2) for air to enter; the upper film and the lower film above the air inlet (31) are heat sealed by a first channel heat sealing strip (4) and a second channel heat sealing strip (5) to form an air inlet channel (6) for the air pipe of the inflator to be inserted between the air inlet (31); the first channel heat sealing strip (4) and the second channel heat sealing strip (5) are symmetrically arranged at the uppermost end of the air column piece (1), and a gas discharge channel (7) for connecting the outside and the air inlet channel (6) is formed between the first channel heat sealing strip (4) and the second channel heat sealing strip (5); the air column piece (1) is provided with a first sealing line (11) for sealing the air inlet (31), and the air column piece (1) is further provided with a second sealing line (12) for sealing the end of the air column strip (3) away from the air inlet (31), and the first sealing line (11) and the second sealing line (12) form a closed space; the air column strip (3) is provided with a non-return part (8) near the air inlet (31).

2. An air column bag for inflators according to claim 1, characterized by: The air column heat sealing strip (2) comprises a straight strip section (21) and a necked section (22), the straight strip section (21) is arranged in the extension direction of the air column strip (3), and the necked section (22) is arranged at the position of the air inlet (31); the necked sections (22) of two adjacent air column heat sealing strips (2) are oppositely arranged to form the air inlet (31); the non-return part (8) comprises two first non-return strips (81), two second non-return strips (82) and two third non-return strips (83), one end of each of the two first non-return strips (81) is symmetrically fixed on the necked section (22) of the two adjacent air column heat sealing strips (2), one end of each of the two second non-return strips (82) and the two third non-return strips (83) is symmetrically fixed on the straight strip section (21) of the two adjacent air column heat sealing strips (2); the first non-return strip (81), the second non-return strip (82) and the third non-return strip (83) are arranged in the air column strip (3) from top to bottom in sequence; the other end of each of the two third non-return strips (83) is close to each other to form a pressing after the air column strip (3) is inflated, and the other end of each of the corresponding second non-return strips (82) forms a contact; the other end of each of the two second non-return strips (82) is close to each other to form a pressing after the air column strip (3) is inflated, and the other end of each of the corresponding first non-return strips (81) forms a contact; the other end of each of the two first non-return strips (81) is close to each other to form a pressing after the air column strip (3) is inflated, and is used for blocking the air inlet (31).

3. An air column bag for inflators according to claim 1, characterized in that: The air column strip (3) is provided with an exhaust assembly (9), the exhaust assembly (9) comprises a blocking block (91), a connecting rod (92) and an adhesive strip (93), one side of the blocking block (91) is fixedly connected with one end of the connecting rod (92), the adhesive strip (93) is fixedly connected with the other end of the connecting rod (92), the air column strip (3) is provided with a through hole for inserting the connecting rod (92), the thickness of the through hole is consistent with the thickness of the connecting rod (92); the blocking block (91) is located in the inside of the air column strip (3), the adhesive strip (93) is located outside the air column strip (3) and adheres to the outer wall of the air column strip (3), one side of the blocking block (91) facing the through hole is provided with a fitting surface (911) which can fit the inner wall of the air column strip (3) after the air column strip (3) is inflated.

4. An air column bag for inflators according to claim 3, characterized in that: The two ends of the adhesive strip (93) are provided with outwardly extending free pulling parts (931).

5. An air column bag for inflators according to claim 1, characterized by: The first sealing line (11) and the second sealing line (12) can adopt one of a straight line, a wavy line, a curved line or a special-shaped extension line, the special-shaped extension line is a line segment with disordered bending angle and extension length after bending.

6. An air column bag for inflators according to claim 1, characterized by: The side edge of the air column piece (1) is further provided with a creasing line (13) for facilitating cutting or tearing, the creasing line (13) can be composed of a sawtooth shape or a plurality of connecting segments (131) which are uniformly and spacedly arranged along the extension direction of the side edge of the air column piece (1).

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