Inner bag with novel structure

Abstract

The utility model provides an inner bag with a novel structure, which relates to the technical field of inner bags, and comprises an inner bag and a heat sealing strip, the lower end of the inner bag is provided with a sealing strip in a heat sealing manner, the sealing strip comprises a straight-going sealing strip and an arc-shaped sealing strip, and the lower end of the inner bag is provided with the straight-going sealing strip in a heat sealing manner. According to the inner bag with the novel structure, through the arrangement of the sealing strips, after the side folding edges are folded into the inner bag, the straight sealing strips are subjected to heat sealing at the bottom of the inner bag, and key stress points are designed to be arc-shaped, so that in the using or transporting process of terminal clients, the stress of key points can disperse acting force due to the arc shape, and goods are better protected against leakage; through the arrangement of the side folding edges and the hot sealing strips, the inner bag is closer to a square or a circle after being unfolded after the side folding edges are folded in, the inner bag can be used as an inner bag of a paper box or a plastic rubber barrel, and the inclined hot sealing strips aim at enabling powder or liquid to be sucked by a suction pipe more cleanly and not prone to being left when the powder or the liquid is filled with the powder or the liquid. The environment is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of inner bags, in particular to an inner bag with a new structure. Background Art

[0002] Inner bags usually refer to bags or films wrapped inside containers, packages or other items. The function of such bags can be to protect items, prevent contamination, keep them clean, or provide an additional closed layer to ensure the safety and freshness of items. In industry and transportation, inner bags can also be used to load powders, liquids or granular items to prevent leakage or contamination. These inner bags can usually be placed directly into containers or transportation equipment to provide an additional closed layer.

[0003] When the bottom of the existing inner bag needs to be sealed, the conventional seal is a straight heat seal. The single straight heat seal has poor firmness. When loading powder or liquid, the bottom of the inner bag is prone to uneven force, resulting in damage and leakage. Secondly, when loading powder or liquid, the straight heat seal and the side fold will form a right angle, which will cause the bag to be sucked thoroughly when using a straw, and residue is easy to remain inside.

[0004] Therefore, we provide a new type of structural inner bag. Utility Model Content

[0005] The purpose of the utility model is to provide an inner bag with a new structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a new type of structural inner bag, comprising an inner bag and a sealing strip, wherein the lower end of the inner bag is heat-sealed with a sealing strip.

[0007] Preferably, the seal includes a straight seal and an arc seal, the lower end of the inner bag is heat-sealed with a straight seal, and an arc seal is intermittently provided in the middle of the straight seal.

[0008] Preferably, the seals are provided in two groups, and a single group of the seals is heat-sealed with two groups of arc-shaped seals.

[0009] Preferably, side folds are provided on both sides of the inner bag, and the side folds are folded inwardly of the inner bag.

[0010] Preferably, both sides of the bottom of the inner bag are provided with heat sealing strips, and the heat sealing strips are arranged obliquely.

[0011] Preferably, a single group of the heat sealing strips is provided with two, and the heat sealing strips and the straight sealing strips are staggered with each other.

[0012] Preferably, a lower side edge is provided on the lower side of the seal, and a code is provided on the surface of the lower side edge.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The new structure inner bag is provided with a seal. After the side fold is folded in, a heat-sealed straight seal is performed at the bottom of the inner bag. The key stress points are designed to be arc-shaped, so that during the use or transportation by the end customers, the stress at the key points will be dispersed due to the arc shape, which can better protect the goods from leakage. The setting of two sets of seals can play a double protection role.

[0015] 2. By setting the side folds and hot-sealing strips, the side folds will make the inner bag closer to a square or circle after unfolding, and can be used as an inner bag of a carton or a plastic barrel. The inclined hot-sealing strips can be sucked more cleanly by a straw when filling powder or liquid, without residue, and more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the inner bag of the utility model;

[0017] Figure 2 This is a schematic diagram of the inner bag wire structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the side view of the structure of the inner bag of the utility model;

[0019] Figure 4 It is a schematic diagram of the inner bag and side fold structure of the utility model.

[0020] Numbers in the figure: 1, inner bag; 2, side fold edge; 3, seal; 31, straight seal; 32, curved seal; 4, hot seal; 5, lower side; 51, code. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1

[0023] See also Figure 1-4 As shown, the utility model provides an implementation mode: a new type of structural inner bag, comprising an inner bag 1 and a seal 3, wherein the lower end of the inner bag 1 is heat-sealed with the seal 3.

[0024] Furthermore, the seal 3 includes a straight seal 31 and a curved seal 32. The lower end of the inner bag 1 is heat-sealed with a straight seal 31, and a curved seal 32 is intermittently provided in the middle of the straight seal 31. Two groups of seals 3 are provided, and a single group of seals 3 is heat-sealed with two groups of curved seals 32. After the side fold 2 is folded in, the straight seal 31 is heat-sealed at the bottom of the inner bag 1. The key stress points are designed to be arc-shaped, so that during the use or transportation by the end customer, the stress at the key points will be dispersed due to the arc, thereby better protecting the goods from leakage. The setting of two groups of seals 3 can play a double protection role.

[0025] Embodiment 2

[0026] See also Figure 1-4 As shown, compared with Example 1, as another implementation of the utility model, side fold edges 2 are provided on both sides of the inner bag 1, and the side fold edges 2 are folded inwardly on the inner side of the inner bag 1. After the side fold edges 2 are folded inwardly, the inner bag 1 will be closer to a square or circle after unfolding, and can be used as the inner bag 1 of a carton or a plastic barrel.

[0027] Furthermore, both sides of the bottom of the inner bag 1 are provided with sealing strips 4, and the sealing strips 4 are arranged obliquely. The purpose of the inclined sealing strips 4 is to make it easier to suck the powder or liquid by the straw when filling it, and it is not easy to leave residue, which is more environmentally friendly.

[0028] Furthermore, a single group of heat sealing strips 4 is provided with two, and the heat sealing strips 4 and the straight sealing strips 31 are interlaced with each other. The heat sealing strips 4 and the straight sealing strips 31 are interlaced, thereby improving the sealing performance of the inner bag 1.

[0029] Furthermore, a lower side edge 5 is provided on the lower side of the seal 3, and a code 51 is provided on the surface of the lower side edge 5. The code 51 can be numbers or letters, and can be set according to customer needs to facilitate the source of each batch.

[0030] Working principle: First, a new type of structure inner bag is moved to the working position. In the first step, after the side fold 2 is folded in, the inner bag 1 will be closer to a square or circle after unfolding, and can be used as the inner bag 1 of a carton or a plastic barrel. In the second step, after the side fold 2 is folded in, a straight seal 31 is heat-sealed at the bottom of the inner bag 1, and an arc is designed at the key stress point. In the third step, the inclined heat seal strips 4 are heat-sealed on both sides of the bottom of the inner bag 1. The purpose is to allow the powder or liquid to be sucked more cleanly by the straw. In the fourth step, a code 51 can be set on the lower side 5 according to customer needs to facilitate the source of each batch. In this way, the use process of a new type of structure inner bag is completed.

Claims

1. A new type of inner bag structure, comprising an inner bag (1) and a sealing strip (3), characterized in that: The lower end of the inner bag (1) is heat-sealed with a seal (3), and the seal (3) comprises a straight seal (31) and an arc-shaped seal (32). The lower end of the inner bag (1) is heat-sealed with a straight seal (31), and an arc-shaped seal (32) is intermittently arranged in the middle of the straight seal (31). The seal (3) is arranged in two groups, and a single group of the seal (3) is heat-sealed with two groups of arc-shaped seals (32). Both sides of the bottom of the inner bag (1) are provided with hot-sealing strips (4), and the hot-sealing strips (4) are arranged in an inclined manner.

2. A novel structure inner bag according to claim 1, characterized in that: Side folds (2) are provided on both sides of the inner bag (1), and the side folds (2) are folded inwardly on the inner side of the inner bag (1).

3. A new type of inner bag according to claim 1, characterized in that: A single group of the heat sealing strips (4) is provided with two, and the heat sealing strips (4) and the straight sealing strips (31) are interlaced with each other.

4. A novel structure inner bag according to claim 1, characterized in that: The lower side of the seal (3) is provided with a lower side edge (5), and the surface of the lower side edge (5) is provided with a code (51).

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