Flat-bottom packaging bag with high bearing capacity

Abstract

The utility model provides a flat-bottom packaging bag with high bearing capacity. The flat-bottom packaging bag comprises a bag body, the bag opening sealing part is arranged at the opening end of the bag body; the bag bottom is arranged at the bottom of the bag body, a cavity used for containing articles is formed between the bag bottom and the bag body, an arc-shaped separation layer is arranged in the cavity and is close to the bag bottom, and an organ folding part is formed at the bottom of the bag bottom, so that the pressure resistance of the bag bottom is improved; the frame parts are arranged on the two sides of the bag bottom and attached to the organ folding parts. Through multiple optimization, the bearing capacity and durability of the packaging bag are improved, and the packaging bag is more regular during folding, convenient to store and transport and suitable for various scene requirements.

Description

TECHNICAL FIELD

[0001] The utility model relates to a flat bottom packing bag with high bearing capacity. BACKGROUND

[0002] The packing bag refers to the bag for packing various articles, and makes goods convenient to transport and easy to store in the production flow process, and is widely used in daily life and industrial production, with the development of the times, the commerciality of the packing bag is more and more obvious, it has become a special product no longer attached to the commodity production, a product that all goods cannot leave, widely used product, with the development of the times, the packing bag needs more and more packing and storing articles, more and more miscellaneous, however, with the packing and storing articles of the packing bag more and more, more and more heavy, the bearing strength of the existing packing bag does not follow the demand, and the phenomenon that the packing bag is damaged due to the insufficient bearing capacity of the packing bag often occurs. INNOVATION CONTENT

[0003] The utility model provides a flat bottom packing bag with high bearing capacity can effectively solve above -mentioned problem.

[0004] The utility model is realized as follows:

[0005] A flat bottom packing bag with high bearing capacity, comprising

[0006] The bag body is provided with a bag opening at one end and a bag bottom at the other end.

[0007] The bag opening is provided with a bag opening sealing part at the opening end of the bag body.

[0008] The bag bottom is provided with an arc-shaped separation layer inside and close to the bag bottom, and an organ fold part is formed at the bottom of the bag bottom to improve the compression resistance of the bag bottom, and a frame part is provided on both sides of the bag bottom and is attached to the organ fold part.

[0009] The utility model has the advantages of:

[0010] (1) The utility model discloses a bag bottom setting organ folding part at bottom, significantly promoted the compression resistance of bag bottom and structural stability, make it can bear greater weight, the cavity formed between bag bottom and bag body is equipped with arc separating layer, can effectively disperse the weight of article, prevent local pressure too big, the frame portion is attached to the both sides of bag bottom, further strengthened the stability of overall structure, prevent deformation, the design of bag mouth sealing portion facilitates user to open packing bag fast, improved the convenience of use, the parallelism of organ folding part and antiskid corrugation design ensure the stability of packing bag when placing, prevent sliding, the overall structure through multiple optimization, not only improved the carrying capacity and durability of packing bag, also made it more regular when folding, convenient storage and transportation, applicable to various scene needs. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be to the embodiment needed to use the drawing briefly introduced, it should be understood, the following drawing only shows some embodiments of the utility model, therefore should not be seen as the limitation to the scope, for ordinary skilled person in the art comes, under the premise of not paying creative labor, can also obtain other related drawings according to these drawings.

[0012] Fig. 1 It is the front view of the utility model.

[0013] Fig. 2 It is the sectional view of the bag bottom of the utility model.

[0014] Fig. 3 It is the bottom view of the parallelism of the utility model.

[0015] Explanation of the attached drawing:

[0016] 10, bag body;

[0017] 20, bag mouth sealing portion;200, tear line;201, tear opening;

[0018] 30, bag bottom;300, arc separating layer;301, support plate;302, organ folding part;3020, parallelism;3021, antiskid corrugation;303, connecting portion;304, lightweight framework;305, tear resistance;306, adhesive;

[0019] 40, reinforcing portion. Specific implementation

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but merely represents selected embodiments of the present application.

[0021] In the description of the present application, the terms "first", "second" are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified.

[0022] Referring to Figs. 1-3 A flat-bottom packaging bag with high carrying capacity, comprising

[0023] A bag body 10, wherein an outer wall of the bag body 10 is provided with a reinforcing portion 40.

[0024] A bag opening sealing portion 20 provided at an opening end of the bag body 10, wherein the bag opening sealing portion 20 comprises a tear line 200 and a tear opening 201, thereby facilitating opening of the bag body 10.

[0025] A bag bottom 30 provided at a bottom of the bag body 10, wherein a cavity for accommodating articles is formed between the bag bottom 30 and the bag body 10, an arc-shaped separation layer 300 is provided inside the cavity and close to the bag bottom 30, an organ-folded portion 302 is formed at a bottom of the bag bottom 30, so as to improve the compression resistance of the bag bottom 30, and a frame portion is provided at both sides of the bag bottom 30 and abuts against the organ-folded portion 302. It should be noted that the organ-folded portion 302 can maximize the stability of the entire structure, and can make the packaging bag fold more regular.

[0026] A support plate 301 is provided at a bottom of the bag bottom 30 and above the organ-folded portion 302, and the support plate 301 is made of plastic or paper. In an embodiment, in order to further ensure the weight of the entire bag body 10, the material of the support plate 301 is preferably plastic.

[0027] The accordion folding part 302 has a parallel part 3020 connected with the contact surface smoothly, and the anti-skid corrugation 3021 is arranged on the parallel part 3020, so that the stability of the packaging bag can be ensured.

[0028] The frame part includes a connecting frame 303 and a light interlayer 304 connected with the connecting frame 303, and the connecting frame 303 and the light interlayer 304 are made of plastic or metal. In one embodiment, in order to ensure the weight of the whole bag body 10, the connecting frame 303 and the light interlayer 304 are preferably made of plastic.

[0029] The anti-tearing part 305 is arranged at the joint between the bottom of the bag bottom 30 and the bag body 10, and the adhesive 306 is arranged between the anti-tearing part 305 and the bag body 10. The adhesive 306 is polyurethane (PU) adhesive.

[0030] Working principle:

[0031] The outer wall of the bag body 10 is provided with the reinforcing part 40 to improve the overall strength; the bag opening sealing part 20 includes the tearing line 200 and the tearing opening 201, which facilitates the user to open the packaging bag; the bag bottom 30 and the bag body 10 form a cavity for containing articles, and the arc-shaped separation layer 300 is arranged close to the bag bottom 30 inside the cavity, which is used for dispersing the weight and improving the stability; the accordion folding part 302 is arranged at the bottom of the bag bottom 30, and the parallel part 3020 and the anti-skid corrugation 3021 thereof enhance the compression resistance and the placing stability; the support plate 301 made of plastic or paperboard is arranged above the accordion folding part 302, which further improves the bearing capacity; the frame part is arranged at both sides of the bag bottom 30, which includes the connecting frame 303 and the light interlayer 304 made of plastic or metal, and is used for enhancing the structural stability; the anti-tearing part 305 is arranged at the joint between the bag bottom 30 and the bag body 10, and is reinforced by the polyurethane (PU) adhesive 306, which prevents local damage. The overall design is optimized by multiple structures, which significantly improves the carrying capacity, compression resistance and durability of the packaging bag, and facilitates the user to open and use.

[0032] The accordion folding part 302 and the support plate 301 have a plurality of accommodating cavities. Since the structures of the accommodating cavities are different, the support strengths are also different, and therefore, the different structures of the accommodating cavities are described as follows:

[0033] Embodiment one: accommodating cavity with reinforcing rib design

[0034] Design description:

[0035] The radial reinforcing ribs are arranged inside the accommodating cavity, the thickness of the ribs is 2 mm, and the material is high-strength aluminum alloy;

[0036] The diameter of the accommodating cavity is about 100 mm, and the height is about 50 mm, which are uniformly distributed at the bottom of the bag body.

[0037] The bottom material of the bag bottom 30 is reinforced plastic, with a thickness of about 5mm;

[0038] Test results:

[0039] Load-bearing strength: under uniform load, the bag bottom can withstand a maximum pressure of 500kPa.

[0040] Deformation: when the load reaches 450kPa, the containment cavity begins to deform slightly, but the overall structure remains stable.

[0041] Example two: honeycomb containment cavity structure

[0042] Design description:

[0043] The containment cavity adopts a honeycomb structure, with each honeycomb cell having a side length of about 20mm and a wall thickness of about 1.5mm, and the material is composite material;

[0044] The height of the containment cavity is about 40mm, uniformly distributed on the bag bottom;

[0045] The bottom material of the bag bottom 30 is carbon fiber reinforced plastic, with a thickness of about 4mm;

[0046] Test results:

[0047] Load-bearing strength: under uniform load, the bag bottom 30 can withstand a maximum pressure of 600kPa.

[0048] Deformation: when the load reaches 550kPa, the honeycomb structure begins to compress locally, but there is no obvious deformation overall.

[0049] Example three: arched bottom containment cavity

[0050] Design description:

[0051] The bottom of the containment cavity is designed as an arch, with an arch height of about 15mm and a cavity diameter of about 80mm, and the material is high-strength plastic;

[0052] The containment cavity has no reinforcing ribs, but the arch structure itself has high compression resistance;

[0053] The bottom material of the bag bottom 30 is glass steel, with a thickness of about 6mm;

[0054] Test results:

[0055] Load-bearing strength: under uniform load, the bag bottom 30 can withstand a maximum pressure of 450kPa;

[0056] Deformation: when the load reaches 400kPa, the arch structure begins to sink slightly, but does not break.

[0057] Example 1: Bag bottom 30 bottom without containing cavity

[0058] Design description:

[0059] The bag bottom 30 bottom is solid structure, made of reinforced plastic, with a thickness of about 10mm.

[0060] Without any containing cavity or reinforcing structure.

[0061] Test results:

[0062] Load-bearing strength: under uniform load, the bag bottom 30 bottom can withstand a maximum pressure of 300kPa.

[0063] Deformation: when the load reaches 250kPa, the bottom begins to deform significantly, and the deformation increases with the increase of load.

[0064] Example 2: Simple containing cavity design (without reinforcing structure)

[0065] Design description:

[0066] The containing cavity is a simple cylinder, with a diameter of about 100mm and a height of about 50mm, made of ordinary plastic;

[0067] The containing cavity has no reinforcing ribs or other support structures inside;

[0068] The bag bottom 30 bottom is made of ordinary plastic, with a thickness of about 5mm.

[0069] Test results:

[0070] Load-bearing strength: under uniform load, the bag bottom 30 bottom can withstand a maximum pressure of 200kPa.

[0071] Deformation: when the load reaches 150kPa, the cavity begins to collapse, and the bag bottom 30 bottom deforms significantly.

[0072]

[0073] In summary:

[0074] The containing cavity design can significantly improve the load-bearing strength of the bag bottom, especially when using reinforcing ribs, honeycomb structure or arch-shaped bottom for optimization design; the reinforcing ribs and honeycomb structure have the best effect, with load-bearing strengths of 500kPa and 600kPa respectively, far exceeding the 300kPa of the design without containing cavity; the simple containing cavity design (without reinforcing structure) actually reduces the load-bearing strength, indicating that the internal structure design of the containing cavity is crucial.

[0075] In this case, it is preferred to use a containing cavity with reinforcing ribs or honeycomb structure.

[0076] It should be noted that the accommodation cavity in the case does not represent the corresponding structure in the figure, and the specific implementation can be set according to the actual demand.

[0077] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A flat bottomed bag having high load bearing capacity, characterised in that, The utility model provides a bag body (10); The bag mouth sealing part (20) is arranged in the opening end of the bag body (10); The bag bottom (30) is arranged in the bottom of the bag body (10), and the cavity for containing articles is formed between the bag bottom (30) and the bag body (10), the arc-shaped separation layer (300) is arranged in the inside of the cavity and close to the bag bottom (30), the organ folded part (302) is formed in the bottom of the bag bottom (30), so as to improve the compression resistance of the bag bottom (30), and the frame part is arranged in both sides of the bag bottom (30) and is attached to the organ folded part (302). The bottom of the bag bottom (30) is provided with the support plate (301) above the organ folded part (302).

2. The flat bottomed bag of claim 1, wherein, The organ folded part (302) has a parallel part (3020) smoothly connected with the contact surface, and the anti-skid corrugation (3021) is arranged on the parallel part (3020).

3. The flat bottomed bag of claim 1, wherein, The frame part includes the connecting frame (303) and the light interlayer (304) connected with the connecting frame (303).

4. The flat bottomed bag of claim 1, wherein, The bag bottom (30) is provided with the tear-resistant part (305) at the junction of the bottom and the bag body (10), and the adhesive (306) is arranged between the tear-resistant part (305) and the bag body (10).

5. The flat bottomed bag of claim 1, wherein, The bag mouth sealing part (20) includes the tear line (200) and the tear opening (201), so as to facilitate opening the bag body (10).

6. The flat bottomed packaging bag having high load bearing capacity as claimed in claim 1 wherein, The connecting frame (303) and the light interlayer (304) are made of plastic or metal.

7. The flat bottomed bag of claim 4, wherein, The support plate (301) is made of plastic or paperboard.

8. The flat bottomed bag of claim 2, wherein, The outer wall of the bag body (10) is provided with the reinforcing part (40).

9. The flat bottomed packaging bag having high load bearing capacity as claimed in claim 1 wherein, The organ folded part (302) and the support plate (301) have a plurality of accommodating cavities.

10. The flat bottomed packaging bag having high load bearing capacity as claimed in claim 2 wherein, ​

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