Composite square-bottom bag

Abstract

The utility model belongs to the technical field of packaging, and particularly relates to a combined type square bottom bag which comprises a bag bottom, a bag body is fixedly arranged on the upper side wall of the bag bottom, compression creases are arranged on the front side wall and the rear side wall of the bag body, turnup creases which are evenly distributed are arranged at the upper end of the side wall of the bag body, and the turnup creases are arranged at the lower end of the side wall of the bag body. Limiting belts are fixedly arranged at the left end and the right end of the inner wall of the bag body, limiting sleeves are arranged outside the limiting belts in a sliding mode, sticking belts are fixedly arranged on the sides, away from each other, of the two limiting sleeves, sticking layers are arranged on the left side walls and the right side walls of the sticking belts, and protective layers are arranged outside the sticking layers; according to the packaging bag, the side wall of the bag body is provided with the evenly-distributed flanging creases, so that the bag body can be turned outwards along the flanging creases according to the requirement for the amount of contained articles, the bag body reaches the proper capacity, and use is very convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging, in particular to a composite square bottom bag. Background Art

[0002] The bottom of the square bottom bag is square. The square bottom bag generally has 5 faces, the front and back (i.e. the front wall and the back wall), two sides, and the bottom. The square bottom bag can stand up, and it can also be called a standing bag. The unique structure of the square bottom bag determines that it is more convenient to package three-dimensional goods or square products.

[0003] However, the existing square bottom bags still have the following technical problems when used:

[0004] The existing square bottom bag cannot change the capacity of the bag body according to the amount of items to be stored when in use. The current bag body structure is fixed. When the bag is too large and only stores a small number of items, it is not convenient to carry. When the bag is too small and needs to hold more items, it cannot accommodate them.

[0005] Therefore, a composite square bottom bag is now proposed to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the utility model is to provide a composite square bottom bag to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a composite square bottom bag, comprising a bag bottom, the upper side wall of the bag bottom is fixedly provided with a bag body, the front side wall and the rear side wall of the bag body are both provided with compression folds, the upper end of the side wall of the bag body is provided with evenly arranged flange folds, the left and right ends of the inner wall of the bag body are fixedly provided with limiting belts, the outside of the limiting belts is slidingly provided with limiting sleeves, the two limiting sleeves are fixedly provided with adhesive belts on the sides facing away from each other, the left and right walls of the adhesive belts are both provided with adhesive layers, and the outside of the adhesive layer is provided with a protective layer.

[0008] Preferably, the bag body comprises a non-woven fabric layer, a polyethylene layer, a nylon layer and a polyester layer, the polyethylene layer is arranged at the lower end of the non-woven fabric layer, the nylon layer is arranged at the lower end of the polyethylene layer, and the polyester layer is arranged at the lower end of the nylon layer.

[0009] Preferably, the lower side wall of the bag bottom is provided with evenly distributed anti-slip particles.

[0010] Preferably, the bag body is rolled outwards along the flange fold.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The present application provides evenly spaced flange folds on the side wall of the bag body, so that the bag body can be turned outward along the flange folds according to the amount of items to be accommodated, so that the bag body reaches an appropriate capacity and is very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the bag body;

[0015] Figure 3 It is a schematic diagram of the structure of the adhesive tape;

[0016] Figure 4 for Figure 3 Schematic diagram of the back structure;

[0017] Figure 5 The material composition diagram of the bag body;

[0018] Figure 6 Schematic diagram of the lower side wall structure of the bag bottom.

[0019] In the figure: 1 bag bottom, 2 bag body, 3 compression crease, 4 flange crease, 5 limiting tape, 6 limiting sleeve, 7 adhesive tape, 8 adhesive layer, 9 protective layer, 10 non-woven fabric layer, 11 polyethylene layer, 12 nylon layer, 13 polyester layer, 14 anti-slip particles. DETAILED DESCRIPTION

[0020] 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.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0022] Example:

[0023] See also Figure 1-6 , the utility model provides a technical solution:

[0024] A composite square bottom bag comprises a bag bottom 1, a bag body 2 is fixedly provided on the upper side wall of the bag bottom 1, the front side wall and the rear side wall of the bag body 2 are both provided with compression folds 3, the upper end of the side wall of the bag body 2 is provided with evenly arranged flanging folds 4, the left and right ends of the inner wall of the bag body 2 are both fixedly provided with limiting belts 5, the outer side of the limiting belts 5 is slidingly provided with limiting sleeves 6, the two limiting sleeves 6 are both fixedly provided with adhesive belts 7 on the sides away from each other, the left and right walls of the adhesive belts 7 are both provided with adhesive layers 8, and the outer side of the adhesive layer 8 is provided with a protective layer 9, the bag body 2 can be flanging and folded outwardly along the flanging folds 4 to change the height of the bag body 2, so that the accommodating cavity inside the bag body 2 can be changed, so that different amounts of items can be contained.

[0025] The bag body 2 includes a non-woven fabric layer 10 , a polyethylene layer 11 , a nylon layer 12 and a polyester layer 13 . The polyethylene layer 11 is arranged at the lower end of the non-woven fabric layer 10 , the nylon layer 12 is arranged at the lower end of the polyethylene layer 11 , and the polyester layer 13 is arranged at the lower end of the nylon layer 12 .

[0026] The lower side wall of the bag bottom 1 is provided with evenly arranged anti-skid particles 14 . When the bag body 2 is placed on a table or other places, the anti-skid effect of the bag bottom 1 can be increased by the anti-skid particles 14 .

[0027] The bag body 2 is rolled outward along the flange fold 4. When the bag body 2 is folded outward, the limiting belt 5 fixed on the inner wall is also folded. The material of the limiting belt 5 here is the same as that of the bag body 2 and is easy to deform.

[0028] Working principle:

[0029] When the square bottom bag is needed, according to the amount of goods to be stored, the bag body 2 is turned outward along the turn-up crease 4 and rolled up to the appropriate position in sequence, so that the storage cavity inside the bag body 2 can just store the goods to be carried, and the adhesive tape 7 inside the bag body 2 is moved to the appropriate position, and the protective layers 9 at both ends are uncovered, so that one side is adhered and fixed to the side wall of the bag body 2, and the other side is adhered and fixed by the two adhesive tapes 7 to complete the sealing.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite square bottom bag, comprising a bag bottom (1), characterized in that: The bag body (2) is fixedly arranged on the upper side wall of the bag bottom (1), the front side wall and the rear side wall of the bag body (2) are both provided with compression folds (3), the upper end of the side wall of the bag body (2) is provided with evenly arranged flange folds (4), the left and right ends of the inner wall of the bag body (2) are both fixedly arranged with limiting belts (5), the outer side of the limiting belt (5) is slidably provided with limiting sleeves (6), the two sides of the limiting sleeves (6) facing away are both fixedly provided with adhesive belts (7), the left and right walls of the adhesive belt (7) are both provided with adhesive layers (8), and the outer side of the adhesive layer (8) is provided with a protective layer (9).

2. A composite square bottom bag according to claim 1, characterized in that: The bag body (2) comprises a non-woven fabric layer (10), a polyethylene layer (11), a nylon layer (12) and a polyester layer (13); the polyethylene layer (11) is arranged at the lower end of the non-woven fabric layer (10), the nylon layer (12) is arranged at the lower end of the polyethylene layer (11), and the polyester layer (13) is arranged at the lower end of the nylon layer (12).

3. A composite square bottom bag according to claim 1, characterized in that: The lower side wall of the bag bottom (1) is provided with evenly distributed anti-skid particles (14).

4. A composite square bottom bag according to claim 1, characterized in that: The bag body (2) is rolled outwards along the flange fold (4).

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