Inflatable explosion-proof cloth-plastic compression bag

Abstract

A zipper is arranged on a bag opening of a bag body, an air valve is arranged on the bag body, the bag body is of a cloth-plastic composite layer structure, the zipper comprises two zipper belts, zipper teeth, a sealing strip and a puller, the two zipper belts are connected with the two sides of the bag opening of the bag body respectively, a row of E-shaped zipper teeth are arranged on the upper portions of the two zipper belts respectively, the middle teeth of the zipper teeth extend out, and the zipper teeth of the zipper belts extend out. The length of the tooth lips is larger than that of the tooth lips, the width of the teeth is smaller than that of the tooth lips, the two rows of zipper teeth are arranged in a staggered mode, sealing strips are arranged on the inner sides of the tooth lips of each row of zipper teeth respectively, the zipper head is in a transverse inverted E shape and used for separating or combining and interlocking the zipper teeth, and one row of teeth are clamped into a gap between every two adjacent teeth in the other row during combination and interlocking. According to the sealing zipper, the teeth are meshed with one another in a high-strength mode, compared with a sealing opening of a common compression bag, the sealing zipper has a super-strong anti-explosion function, and the requirements that the sealing opening does not crack after being inflated and the sealing performance is good are met.

Description

Technical Field

[0001] The utility model relates to the field of compression bags, in particular to an inflatable explosion-proof cloth-plastic compression bag. Background Art

[0002] Conventional compression bags are airtight. Items are placed in the bag and the bag mouth is sealed. Then, an air pump is used to pump out the air in the bag through the air valve on the bag body to form a vacuum. Some application scenarios require the air to be pumped out first and then filled with other gases to achieve special purposes, such as live fish bags and puffed snack bags. However, the sealing strength of conventional compression bags is not strong enough and they are easy to burst when inflated. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model provides an inflatable explosion-proof cloth-plastic compression bag, which has high bite strength between zipper teeth at the bag opening, is not easy to burst due to inflation, and has good sealing performance.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] An inflatable explosion-proof cloth-plastic compression bag, a zipper is provided at the bag opening of the bag body, an air valve is provided on the bag body, the bag body is a cloth-plastic composite layer structure, the zipper includes a chain belt, chain teeth, a seal and a pull head, the two chain belts are respectively connected to the two sides of the bag opening of the bag body, a row of E-shaped chain teeth are arranged on the upper part of the two chain belts, the middle teeth of the chain teeth extend out, the length is greater than the upper and lower tooth lips, and the width of the teeth is less than the width of the tooth lips, the two rows of chain teeth are staggered with each other, and the inner side of the tooth lips of each row of chain teeth is respectively provided with a seal, the pull head is in the shape of an inverted E, which is used to separate or combine interlocking chain teeth, and when combined and interlocked, one row of teeth is stuck in the gap between two adjacent teeth of another row.

[0006] A further improvement is that a seal is provided inside the upper and lower tooth lips of each row of chain teeth to form two sealing doors, one inside and one outside. The explosion-proof performance is stronger.

[0007] A further improvement is that the seal is an integral part of the chain belt, that is, the upper part of the chain belt includes a seal inside the upper and lower tooth lips and a horizontally inverted U-shaped fixing piece stuck in the chain tooth mouth, and the side wall of the fixing piece has an opening at the tooth for the tooth to pass through.

[0008] A further improvement is that the front section of the tooth is arrow-shaped, and the arrow-shaped rear root step surface forms two rows of tooth interlocking clamping platforms, which has a stronger bite force.

[0009] A further improvement is that both ends of the zipper are provided with limit heads, so that the pull heads will not slip off.

[0010] A further improvement is that the outer layer of the bag body is cloth, the inner layer is a plastic film, and the inner and outer layers are bonded and compounded. Beneficial Effects

[0011] The sealing zipper configured for this compression bag has high-strength engagement between teeth, and has a super explosion-proof function compared with the sealing opening of ordinary compression bags, meeting the requirements of no bursting at the mouth after inflation and good sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the present utility model;

[0013] Figure 2 is a schematic diagram of the end face of the chain teeth of the present utility model;

[0014] Figure 3 is a schematic diagram of the integrated structure of the seal strip, fixing member and chain belt of the present utility model;

[0015] Figure 4 is a schematic top view of a single row part of the zipper of the present utility model;

[0016] Figure 5 is a schematic top view of the combination and interlocking of two rows of chain teeth of the present utility model;

[0017] Figure 6 is a schematic end face view of the combination and interlocking of the zipper of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] As Figures 1 to 6 shown, the present utility model includes a zipper 2 provided at the bag mouth of the bag body 1, an air valve 3 provided on the bag body 1, the bag body 1 has a cloth outer layer and a plastic film inner layer, and the inner and outer layers are bonded and compounded to form a cloth-plastic composite structure. The zipper 2 includes a chain belt 21, chain teeth 22, a seal strip 23, a fixing member 25 and a pull head 24. The chain teeth 22 are of an E-shaped structure, and the middle tooth 221 of the chain teeth 22 protrudes, with a length greater than the upper and lower tooth lips 222, and the width of the tooth 221 is smaller than the width of the tooth lip 222. The seal strip 23, the fixing member 25 and the chain belt 21 are of an integrated structure. The chain teeth 22 are laterally installed on the horizontally inverted U-shaped fixing member 25. The fixing member 25 is located inside the chain tooth opening, and there is an opening on the side wall at the position of the tooth for the tooth to pass through. The seal strip 23 is respectively attached to the inner sides of the upper and lower tooth lips. The bottoms of the two chain belts 21 are respectively connected to both sides of the bag mouth of the bag body 1. The two rows of chain teeth 22 arranged on the two chain belts 21 are arranged in an interlaced manner. The pull head 24 is in the shape of a horizontally inverted E and is used to separate or combine and interlock the chain teeth 22. When combined and interlocked, one row of teeth is inserted into the gap between two adjacent teeth of the other row. The seal strips 23 on the inner sides of the upper and lower tooth lips of the two rows of chain teeth 22 are mutually attached to form two upper and lower sealing doors.

[0019] Both ends of the zipper 2 are respectively provided with limit heads 26.

[0020] The front section of the tooth 222 is arrow-shaped, and the stepped surface of the arrow-shaped rear root forms an interlocking and clamping platform for two rows of teeth.

[0021] The above are only the preferred embodiments of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any technical solutions falling within the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements should also be regarded as within the protection scope of the present utility model.

Claims

1. Inflatable explosion-proof cloth-plastic compression bag, with a zipper (2) provided at the bag opening of the bag body (1), an air valve (3) provided on the bag body (1), and the bag body (1) being a cloth-plastic composite layer structure, characterized in that: The zipper (2) includes chain tapes (21), chain teeth (22), seals (23) and a slider (24). The lower parts of the two chain tapes (21) are respectively connected to both sides of the bag opening of the bag body. The upper parts of the two chain tapes (21) are respectively arranged with a row of E-shaped chain teeth (22). The middle teeth (221) of the chain teeth (22) protrude, with a length greater than the upper and lower tooth lips (222), and the width of the teeth (221) is less than the width of the tooth lips (222). The two rows of chain teeth (22) are arranged in an interlaced manner. Seals (23) are respectively arranged on the inner sides of the tooth lips (222) of each row of chain teeth. The slider (24) is in the shape of an inverted E and is used to separate or combine the interlocked chain teeth (22). When combined and interlocked, one row of teeth is inserted into the gap between two adjacent teeth of the other row.

2. The inflatable explosion-proof cloth-plastic compression bag according to claim 1, characterized in that: Seals (23) are arranged on the inner sides of the upper and lower tooth lips of each row of chain teeth (22), forming upper and lower two sealing doors.

3. The inflatable explosion-proof cloth-plastic compression bag according to claim 2, characterized in that: The seal (23) is an integral part of the chain tape (21), that is, the upper part of the chain tape includes the seals (23) on the inner sides of the upper and lower tooth lips and an inverted U-shaped fixing member (25) stuck in the chain tooth opening. There is an opening at the side wall of the fixing member (25) at the position of the teeth for the teeth to pass through.

4. The inflatable explosion-proof cloth-plastic compression bag according to claim 1, characterized in that: The front section of the tooth (221) is arrow-shaped, and the stepped surface at the rear root of the arrow shape forms an interlocking clamping platform for the two rows of teeth.

5. The inflatable explosion-proof cloth-plastic compression bag according to claim 1, wherein: Limit heads (26) are respectively arranged at both ends of the zipper (2).

6. The inflatable explosion-proof cloth-plastic compression bag according to claim 1, wherein: The outer layer of the bag body (1) is cloth, and the inner layer is a plastic film. The inner and outer layers are bonded and compounded.

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