Container expansion prevention liquid bag

Abstract

The utility model belongs to the technical field of transportation packaging bags, and particularly relates to an anti-expansion liquid bag for a container, which comprises a bag body made of a PE (polyethylene) film, the bag body is cuboid, and the anti-expansion liquid bag is characterized in that a sleeve made of PP (polypropylene) cloth is sleeved on the outer side of the bag body along the front-back direction, more than two waist hoops are coaxially arranged on the sleeve, and the inner perimeter of each waist hoop is smaller than the outer perimeter of the bag body; the left side and the right side of the sleeve are respectively and fixedly provided with more than two hanging belts, each hanging belt is provided with a free section upwards extending out of the sleeve, and the length of each free section is larger than the width of the bag body. The waist hoop can play a role in tightening the bag body, the hanging belt can be fixed on a container hanging ring on one side opposite to the hanging belt in a crossed mode, and when liquid in the bag body surges left and right in the transportation process, the hanging belt can pull the bag body in the direction opposite to the surging direction of the liquid, so that the bag body is prevented from shaking left and right by a large margin; the impact force on the side wall of the container is greatly reduced, so that the container expansion is effectively prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of transportation packaging bags, and particularly relates to a strong and durable anti-bulging liquid bag for containers. Background Art

[0002] A container liquid bag is a new type of flexible packaging container capable of storing and transporting various non-hazardous liquid goods. Since there are no empty container and empty vehicle return freight charges and cleaning costs, and it can effectively avoid cross-contamination of goods, it has more advantages than tank trucks. Therefore, it is widely used in the storage and transportation fields of various non-hazardous liquid goods such as chemical industry, food, feed, and agricultural products.

[0003] Due to the advantages of corrosion resistance, good flexibility, and low moisture permeability of polyethylene (PE) film, it is widely used in the manufacture of container liquid bags. Since the liquid extends outward under the action of gravity, it causes high-intensity extrusion on both the PE film bag and the side wall of the container. During transportation, not only does the outer wall of the PE film bag rub severely against the inner wall of the container, causing damage to the liquid bag, but also long-term transportation easily causes irreversible damage such as bulging of the container side wall, greatly reducing the service life of the container. Summary of the Invention

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an anti-bulging liquid bag for containers, which can avoid the liquid bag from bulging and prevent the container from bulging.

[0005] The technical solution adopted by the utility model to solve its technical problems is: an anti-bulging liquid bag for containers, including a bag body made of PE film, the shape of the bag body is a cuboid, and its characteristics are: a sleeve made of PP cloth is sleeved on the outer side of the bag body along the front-back direction, and two or more waist hoops are coaxially arranged on the sleeve, and the inner circumference of the waist hoop is smaller than the outer circumference of the bag body; two or more suspension straps are respectively fixedly arranged on the left and right sides of the sleeve, and the suspension straps have free sections extending upward out of the sleeve, and the length of the free sections is greater than the width of the bag body.

[0006] Further, two or more waist hoops are evenly distributed along the axial direction of the sleeve.

[0007] Further, the waist hoop is sleeved on the outer side of the sleeve and stitched and fixed together with the sleeve.

[0008] Further, the suspension straps on the left side of the sleeve and the suspension straps on the right side of the sleeve are arranged in one-to-one correspondence.

[0009] Further, the waist hoops and the suspension straps are arranged at intervals.

[0010] Further, the lower part of the suspension strap is stitched and fixed on the sleeve.

[0011] Further, the suspension strap is a PP cloth belt.

[0012] Furthermore, a material outlet is provided at the bottom of the rear wall of the bag body, and a valve is arranged on the material outlet.

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

[0014] Since a sleeve made of PP cloth is sleeved on the outer side of the bag body in the front-back direction, the sleeve can play a protective role for the bag body, avoiding the bag body from being directly rubbed against the container and damaged. Since two or more waist hoops are coaxially arranged on the sleeve and the inner circumference of the waist hoop is smaller than the outer circumference of the bag body, the waist hoop plays a role in tightening the bag body, avoiding serious bulging of the bag body under the action of liquid pressure. Since the sling straps on the left and right sides of the sleeve have free sections extending upward out of the sleeve and the length of the free section is greater than the width of the bag body, the free sections of the sling straps can be cross-fixed on the container lifting rings on the opposite side. When the liquid in the bag surges left and right during transportation, the sling straps can pull the bag body in the opposite direction of the liquid surge, thus avoiding large-amplitude left and right shaking of the bag body, greatly reducing the impact force on the side wall of the container, and thus avoiding the occurrence of the phenomenon of box expansion.

[0015] Since two or more waist hoops are evenly distributed along the axial direction of the sleeve, the waist hoops tighten the bag body in the sleeve more evenly, helping to avoid local bulging.

[0016] Since the waist hoop is sleeved on the outer side of the sleeve and stitched and fixed together with the sleeve, it can effectively prevent the waist hoop from shifting, ensuring that the waist hoop can effectively and evenly disperse the pressure of the liquid in the bag body extending outward, and achieving a better anti-bulging effect.

[0017] Since the sling straps on the left side of the sleeve and the sling straps on the right side are arranged in one-to-one correspondence, the pulling forces generated by the sling straps on the left and right sides on the sleeve and the bag body are quite equal during transportation, thus avoiding the situation of excessive local pulling force damaging the sleeve, and helping to ensure the overall stability of the sleeve and the bag body.

[0018] Since the waist hoops and the sling straps are arranged at intervals on the sleeve, the forces exerted by the waist hoops and the sling straps on the sleeve and the bag body are more uniform, thus avoiding local bulging of the bag body.

[0019] Since the lower part of the sling strap is stitched and fixed on the sleeve, it can not only ensure the stability and reliability of the connection between the sling strap and the sleeve, but also facilitate production and processing.

[0020] Since a material outlet is provided at the bottom of the rear end of the bag body and a valve is arranged on the material outlet, the liquid material flows out more smoothly, helping to improve the discharging speed.

[0021] Through the design of the waist hoops and the cross sling straps, the utility model effectively solves the problems of bulging and box expansion of the container liquid bag, has a simple structure and remarkable effects, and is worthy of popularization and application in the industry. Description of the Drawings

[0022] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0023] Figure 2 is a three-dimensional structural schematic diagram of the sleeve in the present utility model;

[0024] Figure 3 is a three-dimensional structural schematic diagram of the bag body in the present utility model.

[0025] The marks in the figure are:

[0026] 1. Bag body; 2. Sleeve; 3. Waist hoop; 4. Suspender; 5. Material port. Specific embodiments

[0027] When the present utility model is in a working state, the direction vertically pointing to the ground is defined as the lower side, and correspondingly, the other direction vertically away from the ground is defined as the upper side; the side facing the inner cavity of the bag body is defined as the inner side, and correspondingly, the side away from the inner cavity of the bag body is defined as the outer side; the direction consistent with the forward direction of the container is defined as the front, and correspondingly, the direction opposite to the forward direction of the container is defined as the rear; the natural left side when facing the forward direction of the container is defined as the left side, and correspondingly, the natural right side when facing the forward direction is defined as the right side.

[0028] The following further describes the present utility model in conjunction with the embodiments of the attached drawings:

[0029] As Figures 1 to 3 shown, the present utility model provides a liquid bag for preventing container swelling. The bag body 1 is a cuboid structure made of PE film. A sleeve 2 made of PP cloth is sleeved on the outer side of the bag body 1 in the front-rear direction. The inner wall of the sleeve 2 is attached to the outer wall of the bag body 1, so that the sleeve 2 plays a good role in protecting the bag body 1. In this embodiment, four waist hoops 3 are coaxially arranged on the sleeve 2. The inner circumference of the waist hoop 3 is smaller than the outer circumference of the bag body 1, so that the waist hoop 3 plays a role in tightening the bag body 1, thereby effectively avoiding the phenomenon of the bag body 1 bulging under the action of liquid pressure. In order to improve the uniformity of the tightening force of the waist hoop 3, the four waist hoops 3 are evenly distributed at equal intervals along the axial direction of the sleeve 2. Of course, different numbers of waist hoops 3 can also be set according to the length of the bag body 1, as long as the effect of evenly tightening the bag body 1 can be achieved. In order to prevent the waist hoop 3 from shifting, the waist hoop 3 is sleeved on the outer side of the sleeve 2 and fixedly connected to the sleeve 2.

[0030] On the left and right sides of the sleeve 2, three suspension straps 4 are fixedly arranged respectively. The suspension straps 4 are made of PP fabric belts. The suspension straps 4 have free segments extending upward from the sleeve 2, and the length of the free segments is greater than the width of the bag body 1, so that the suspension straps 4 can be fixed on the container lifting rings on the opposite side. During transportation, the suspension straps 4 on both sides of the sleeve 2 are cross-fixed on the container, and can respectively tighten the side walls of the sleeve 2 opposite to them, so that the suspension straps 4 pull the bag body 1 in the opposite direction of the liquid surge, ensuring the stability of the bag body 1 and avoiding the impact on the container caused by the large amplitude shaking of the bag body 1 due to the liquid surge in the bag body 1, thereby avoiding the wear of the bag body 1 and the accident of the container bulging. Of course, the number of the suspension straps 4 can also be changed accordingly according to the length of the bag body 1. In order to balance the pulling forces received on the left and right sides of the bag body 1, the suspension straps 4 on the left side of the sleeve 2 and the suspension straps 4 on the right side of the sleeve 2 are arranged in one-to-one correspondence. In order to make the force on the bag body 1 more balanced, the waist hoop 3 and the suspension straps 4 are arranged at intervals. In order to improve the firmness of the suspension straps 4, the lower parts of the suspension straps 4 are sewn and fixed on the outer side wall of the sleeve 2.

[0031] In order to facilitate the discharge of liquid materials and improve the discharging efficiency, a material opening 5 is provided at the bottom of the rear end of the bag body 1, and a valve is arranged on the material opening 5. The valve can adopt the valve in the prior art and will not be elaborated herein.

[0032] The above is only a preferred embodiment of the present invention, and it is not a limitation to the present invention in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution content of the present invention.

Claims

1. A container anti-bulking flexitank, comprising a bag body made of PE film, the bag body being in the shape of a cuboid, characterized in that: A sleeve made of PP cloth is mounted on the outside of the bag body in the front-to-back direction, and two or more waist hoops are coaxially arranged on the sleeve, and the inner circumference of the waist hoops is smaller than the outer circumference of the bag body; two or more slings are fixedly arranged on the left and right sides of the sleeve respectively, and the slings have a free section extending upward from the sleeve, and the length of the free section is greater than the width of the bag body.

2. The container anti-bulking flexitank according to claim 1, characterized in that: More than two waist hoops are evenly distributed along the axial direction of the sleeve.

3. The container anti-bulking flexitank according to claim 2, characterized in that: The waist hoop is sleeved on the outside of the sleeve and is fixed together with the sleeve by sewing.

4. The container anti-bulking flexitank according to claim 1, characterized in that: The sling on the left side of the sleeve and the sling on the right side of the sleeve are arranged one by one opposite to each other.

5. The container anti-bulking flexitank according to claim 4, characterized in that: The waist hoop and suspenders are set at intervals.

6. The container anti-bulking flexitank according to claim 4, characterized in that: The lower part of the sling is sewn and fixed to the sleeve.

7. The container anti-bulking flexitank according to claim 6, characterized in that: The sling is made of PP cloth.

8. The container anti-bulking flexitank according to any one of claims 1 to 7, characterized in that: A material opening is provided at the bottom of the rear wall of the bag body, and a valve is provided on the material opening.

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