Square-steel-free sea bag

Abstract

The utility model relates to a packaging material for container transportation, in particular to a sea bag without square steel. The bag body is composed of a rear sheet, a front sheet and a barrel, the rear sheet and the front sheet are of a rectangular structure and are arranged in parallel, the barrel is connected between the rear sheet and the front sheet, and the two ends of the barrel are fixedly connected with the edge of the rear sheet and the edge of the front sheet respectively; the longitudinal central axis position of the rear sheet is fixedly connected with a rear pulling piece, two sides of the rear pulling piece are fixedly connected with inclined pulling pieces which are obliquely arranged between the rear sheet and the side wall of the cylinder body, the side wall of the cylinder body is provided with side pulling pieces which are connected with the inclined pulling pieces, the rear pulling piece, the inclined pulling pieces and the side pulling pieces are of an integrated sheet structure, and a plurality of through holes are uniformly distributed in the inclined pulling pieces. According to the sea bag, the rear end of the bag body is supported through the pulling pieces arranged in the bag body, supporting square steel does not need to be additionally arranged in the boxing process, meanwhile, natural flowing of goods in the bag body cannot be hindered, and the sea bag is firm in structure, good in sealing performance, even in fixing position stress and convenient to load and unload the goods.

Description

Technical Field

[0001] The utility model relates to a packaging material used for container transportation, in particular to a non-square steel sea bag. Background Art

[0002] Seabags, also known as container seabags, are a type of container liner bags. They are usually made of high-strength PE or PP film through pasting, heat sealing and other processes. They are often used in various standard containers to load bulk, fluid, bulk granular and powdery products. Most standard containers have five fixed baffles on the top, bottom, left, right and front sides. The rear of the container can only use openable door panels because it needs to be used for loading and unloading goods. Due to the large opening area at the rear end of the container, the container seabag filled with goods cannot withstand its internal pressure when the door panel is opened, and reinforcement measures must be taken. The traditional reinforcement measure is to set square steel pipes horizontally at the rear end of the container and on the inner side of the door panel. The two ends of the square steel pipes are connected to the left and right side panels of the container through buckles. Multiple square steel pipes are set in parallel from top to bottom. The square steel pipes support the rear end of the container liner bag. On the one hand, it can prevent the pressure of the container liner bag from directly acting on the door panel to cause locking and opening difficulties. On the other hand, it can also prevent the goods in the container liner bag from bursting the bag body and causing leakage after the door panel is opened. However, the square steel pipes used for reinforcement are expensive and difficult to recycle, especially in the long-distance shipping environment. The corrosion is greater. Low-cost square steel is easy to rust, and the cost of square steel with anti-rust function is very high. The Chinese patent 2016208400613 applied by me discloses a "An Inner Tension Type Square Steel-free Container Liner Bag", the announcement number is CN205872941U, the inner liner bag is provided with lifting rings at the four corners of the top of the main bag body and on the long side of the top, and the four corners of the bottom of the main bag body and on the long side of the bottom are provided with tension ropes. The main bag body is provided with two left inner tensioning pieces and two right inner tensioning pieces. The two left inner tensioning pieces are fixed on one side and fixed on the left side of the inside of the main bag body, and the two right inner tensioning pieces are fixed on one side and fixed on the right side of the inside of the main bag body. The other side of the two left inner tensioning pieces and the other side of the two right inner tensioning pieces are fixed to the inner side of the rear end cloth. This inner liner bag does not require the use of square steel, which can effectively reduce the packaging cost of container transportation. However, the connection between the front end of the left and right tensioning plates and the main bag body is relatively weak, and the rear end lacks connection with the main bag body. When in use, the tensioning plates are easily separated from the main bag body and lose their supporting function. My other Chinese patent 2018221018047 discloses a "A Circumferentially Fixed Square Steel-Free Container Sea Bag", with the announcement number CN209396327U. The sea bag uses three slender braided belts to be sewn around the bag body. After the materials are filled, the materials are hooped horizontally. At the same time, a transverse tightening belt is formed on the rear end face of the bag body, which can replace the square steel to limit the sea bag so that the rear end face of the bag body will not bulge. This sea bag also has the problem of small force surface and weak connection at the connection between the braided belt and the main bag body, and the sealing performance of the bag body after sewing is greatly reduced, which is easy to leak goods. Summary of the invention

[0003] The utility model aims to provide a square-free steel sea bag with firm structure, good sealing performance and uniform force at the fixed position.

[0004] The technical solution adopted by the utility model to solve the technical problem is:

[0005] The utility model discloses a non-square steel sea bag, comprising a bag body of a rectangular cylindrical structure, wherein the bag body is composed of a rear sheet material, a front sheet material and a cylindrical body connected between the rear sheet material and the front sheet material which are rectangular in structure and arranged parallel to each other, and two ends of the cylindrical body are respectively fixedly connected to the edges of the rear sheet material and the front sheet material; a rear pull-tab is fixedly connected to the longitudinal center axis position of the rear sheet material, and oblique pull-tabs obliquely arranged between the rear sheet material and the side wall of the cylindrical body are fixedly connected on both sides of the rear pull-tab, and side pull-tabs connected to the oblique pull-tabs are arranged on the side walls of the cylindrical body, and the rear pull-tab, oblique pull-tab and side pull-tabs are an integrated sheet structure, and a plurality of through holes are evenly distributed on the oblique pull-tab.

[0006] Through this solution, the sea bag uses multiple pull tabs arranged in the bag body to form support for the rear end of the bag body, and no additional supporting square steel is required when packing. The structure is firm, the sealing performance is good, and the fixed position is evenly stressed. Preferably, the height of the rear pull tab is 5 / 6-2 / 3 of the height of the rear sheet, the height of the oblique pull tab and the side pull tab is equal to the height of the rear pull tab, and the length of the side pull tab is 1 / 3-1 / 2 of the length of the cylinder.

[0007] Through this solution, the pull tab is firmly connected to the bag body, and the support force on the rear end of the bag body is strong, while the pull tab itself reduces the obstruction of the flow of materials in the bag body as much as possible.

[0008] Preferably, there is a certain gap between the upper and lower ends of the rear pull-tab and the upper and lower ends of the rear sheet.

[0009] Through this solution, the material can flow through the gaps at the upper and lower ends of the rear pull-tab, thereby preventing the occurrence of flow dead corners.

[0010] Preferably, the upper end of the rear sheet is provided with a feeding cylinder connected to the inner cavity of the cylinder, and the lower end is provided with a discharging cylinder. Through this solution, feeding or discharging can be conveniently performed.

[0011] Preferably, the through hole is circular or elliptical.

[0012] Through this solution, the material can flow on both sides of the inclined pull piece through the through hole, while ensuring that the inclined pull piece has sufficient tensile strength.

[0013] After adopting the above technical solution, the sea bag uses multiple pull tabs arranged in the bag body to support the rear end of the bag body. There is no need to set up additional supporting square steel when packing, and it will not hinder the natural flow of goods in the bag body. It has a firm structure, good sealing performance, uniform force on the fixed position, and convenient loading and unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0015] Figure 2 yes Figure 1 A schematic diagram of the unfolded structure of the pull tab assembly in the embodiment. DETAILED DESCRIPTION

[0016] like Figure 1 As shown, the utility model discloses a non-square steel sea bag, including a bag body of rectangular cylindrical structure, which is a plastic bag formed by heat-sealing PP or PE film, including a rear sheet 1 and a front sheet 2 of rectangular structure and arranged parallel to each other, and a cylinder 3 connected between the rear sheet 1 and the front sheet 2. The cylinder 3 is a rectangular cylindrical structure, which is composed of left and right side panels and upper and lower wall panels, and the two ends of the cylinder 3 are respectively fixedly connected to the edges of the rear sheet 1 and the front sheet 2. A feed barrel 9 connected to the inner cavity of the cylinder 3 is provided at the upper end of the rear sheet 1, and a discharge barrel 10 is provided at the lower end. The feed barrel 9 and the discharge barrel 10 are used for loading and unloading goods into the cylinder 3. The feed barrel 9 and the discharge barrel 10 can be used as follows Figure 1 The cylindrical structure shown can also be a rectangular cylindrical structure. When transporting goods, the feed tube 9 and the discharge tube 10 can be folded and fixed to the rear sheet 1 with tape to seal them to prevent the goods from leaking during transportation.

[0017] like Figure 1 , Figure 2 As shown, the longitudinal center axis of the rear sheet 1 is fixedly connected with a rear pull-tab 4, which is fixed to the inner wall of the rear sheet 1 by heat sealing or sewing. The two sides of the rear pull-tab 4 are fixedly connected with oblique pull-tabs 5 obliquely arranged between the rear sheet 1 and the side wall of the cylinder 3. The oblique pull-tab 5 is located in the inner cavity of the cylinder 3. The side wall of the cylinder 3 is provided with side pull-tabs 6 connected with the oblique pull-tab 5, which are fixedly connected to the inner side wall of the cylinder 3 by heat sealing or sewing. Figure 2 As shown, the rear pull tab 4, the oblique pull tab 5, and the side pull tab 6 are an integrated sheet structure, which are made of high tensile strength PP or PE film or flexible materials such as non-woven fabrics, woven fabrics, etc., and a plurality of through holes 7 are evenly distributed on the oblique pull tab 5. The edge of each pull tab is provided with a bonding tape 61 for heat sealing or sewing. The number and position of the bonding tape 61 can be flexibly set as needed to ensure sufficient connection strength and will not be pulled off due to the force on the rear pull tab 4.

[0018] The through hole 7 is circular or oval. The through hole 7 allows the goods in the bag to flow on both sides of the inclined pull piece 5, which is convenient for loading and unloading goods. At the same time, the circular or oval through hole 7 can minimize the loss of tensile strength of the inclined pull piece 5 due to punching.

[0019] In addition, as a further improvement of the utility model, the height of the rear pull-tab 4 is 5 / 6-2 / 3 of the height of the rear sheet 1, the height of the oblique pull-tab 5 and the side pull-tab 6 is equal to the height of the rear pull-tab 4, and there is a certain gap between the upper and lower ends of the rear pull-tab 4 and the upper and lower ends of the rear sheet 1, that is, the upper end of the rear pull-tab 4 is not flush with the upper end of the rear sheet 1, and the lower end of the rear pull-tab 4 is not flush with the lower end of the rear sheet 1. There is a certain gap between the upper and lower ends of the rear pull-tab 4 and the oblique pull-tab 5 and the inner wall of the cylinder 3. This gap allows the goods in the bag to flow on both sides of the oblique pull-tab 5, which is convenient for loading and unloading goods. The length of the side pull-tab 6 is 1 / 3-1 / 2 of the length of the cylinder 3. In this way, the side pull-tab 6 can be ensured to fit closely with the side wall of the cylinder 3, preventing the oblique pull-tab 5 from being pulled off when it is subjected to force.

[0020] When in use, the sea bag is placed as a whole inside the container, with the front sheet 2 located at the front end of the container, and the rear sheet 1 located at the rear end of the container, facing the door panel of the container. The upper and lower ends of the side wall of the cylinder 3 are fixed to the inner wall of the container by cables and rope buckles. The feed barrel 9 and the unloading barrel 10 can be opened to load and unload goods normally.

[0021] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustration only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A square-free steel sea bag, comprising a bag body of a rectangular cylindrical structure, wherein the bag body is composed of a rear sheet (1) and a front sheet (2) of a rectangular structure and arranged parallel to each other, and a cylinder (3) connected between the rear sheet (1) and the front sheet (2), and the two ends of the cylinder (3) are respectively fixedly connected to the edges of the rear sheet (1) and the front sheet (2); characterized in that: A rear pull-tab (4) is fixedly connected to the longitudinal center axis of the rear sheet (1), and oblique pull-tabs (5) obliquely arranged between the rear sheet (1) and the side wall of the cylinder (3) are fixedly connected to both sides of the rear pull-tab (4). Side pull-tabs (6) connected to the oblique pull-tab (5) are arranged on the side wall of the cylinder (3). The rear pull-tab (4), the oblique pull-tab (5), and the side pull-tabs (6) are an integrated sheet structure, and a plurality of through holes (7) are evenly distributed on the oblique pull-tab (5).

2. According to claim 1, a square-free steel sea bag, characterized in that: The height of the rear pull tab (4) is 5 / 6 to 2 / 3 of the height of the rear sheet (1); the heights of the oblique pull tab (5) and the side pull tab (6) are equal to the height of the rear pull tab (4); and the length of the side pull tab (6) is 1 / 3 to 1 / 2 of the length of the cylinder (3).

3. A square-free steel sea bag according to claim 1 or 2, characterized in that: There is a certain gap between the upper and lower ends of the rear pull-tab (4) and the upper and lower ends of the rear sheet (1).

4. A square-free steel sea bag according to claim 1 or 2, characterized in that: The upper end of the rear sheet (1) is provided with a feeding cylinder (9) communicating with the inner cavity of the cylinder body (3), and the lower end is provided with a discharging cylinder (10).

5. A square-free steel sea bag according to claim 1 or 2, characterized in that: The through hole (7) is circular or elliptical.

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