Valve bag for packaging

Abstract

The utility model discloses a valve bag for packaging purposes, and the key points of its technical solution include a bag body and a valve port; the bag body has a valve port; a reinforcement portion is arranged on the bag body; the reinforcement portion is arranged inside the bag body to improve the stability of the bag body and thus improve the strength of the bag body; the bag body is made of three to five layers of kraft paper bonded together to make the bag body have high strength; a protective film arranged in the bag body can prevent external liquid from entering the bag body; a matching block arranged on one side of the bag body can cooperate with a recess on another bag body connecting block when stacking, so that the valve bag is arranged firmly and thus prevents the valve bag from slipping; the utility model has the effect of preventing the valve bag from slipping and increasing the strength of the valve bag.

Description

Technical Field

[0001] The utility model relates to a valve bag, more specifically to a valve bag for packaging. Background Art

[0002] Valve bags, commonly known as paste-bottom bags, are internationally popular packaging bags. They are fed from the top or bottom valve port and use special filling equipment to form a cube after filling. The bags are neatly stacked and beautiful, making them environmentally friendly bags. Valve bags are mainly used to package edible powder, chemical powder, fertilizer, synthetic materials, grain, salt, minerals and other powdered or granular solid materials and flexible items. They are particularly suitable for export companies and can improve the packaging grade of products. When valve bags are transported in batches, there is a chance that the valve bags will slip due to stacking. At the same time, after some valve bags are filled with materials and stacked, the valve bags will swell and deform due to insufficient strength, which makes them easy to crack. Summary of the invention

[0003] In view of the deficiencies in the prior art, the utility model provides a valve bag for packaging purposes, which has the effect of preventing the valve bag from slipping and has high strength.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a valve bag for packaging purposes, comprising a bag body and a valve port, characterized in that: the bag body is provided with a valve port; a protective film is provided on the inner side of the bag body; a reinforcement portion is provided on one side of the protective film; a plurality of buckles are provided on the bag body; a plurality of rubber bands are provided on the buckles; a connecting block and a matching block are respectively provided on the bag body; and the connecting block is connected to the matching block.

[0005] The utility model is further configured as follows: the bag body is formed by bonding several layers of kraft paper; the protective film is arranged on one side of the bag body; the reinforcement part is made of polypropylene; and the size of the reinforcement part is consistent with the size of the bag body.

[0006] The utility model is further configured as follows: a through hole is opened on the ring buckle; the rubber band passes through the through hole and the portion of the rubber band that contacts the through hole is fixedly connected to the through hole.

[0007] The utility model is further configured as follows: a plurality of connection blocks are arranged on one side of the bag body; a recess is opened on the connection block; a plurality of matching blocks are arranged on the other side of the bag body; and the matching blocks are connected to the recess.

[0008] The utility model is further configured as follows: the reinforcement portion comprises a plurality of bottom bars, a plurality of vertical bars, and a plurality of reinforcing bars; the vertical bars are arranged above the bottom bars; and the reinforcing bars reinforce the vertical bars.

[0009] In summary, the utility model has the following beneficial effects: the reinforcement part is arranged inside the bag body to improve the stability of the bag body and thus improve the strength of the bag body; the bag body is made of three to five layers of kraft paper so that the valve bag has high strength and thus can prevent the bag body from cracking; the protective film can prevent external liquid from entering the bag body and thus can prevent the material in the bag body from being damaged by moisture; the rubber band arranged outside the bag body can tighten the valve bag when the valve bag is full of materials, thereby making the valve bag more compact and preventing the valve bag body from cracking due to squeezing; the matching block arranged on one side of the valve bag can cooperate with the recess on the connecting block of another valve bag when stacking, so that the valve bag is firmly arranged and thus prevents the valve bag from slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of this embodiment;

[0011] Figure 2 yes Figure 1 A magnified view of part A;

[0012] Figure 3 This is a schematic diagram of the reinforcement part of this embodiment being arranged inside the bag body;

[0013] Figure 4 is a schematic diagram of the reinforcement part of this embodiment;

[0014] Figure 5 is a schematic diagram of the matching block on the other side of the bag body of this embodiment;

[0015] Figure 6 It is a schematic diagram of the connection between the bag body of this embodiment with three layers, the protective film and the reinforcement part.

[0016] Figure numerals: 1. bag body; 2. valve mouth; 3. protective film; 4. reinforcement part; 5. buckle; 6. rubber band; 7. connecting block; 8. matching block; 9. through hole; 10. depression; 11. bottom strip; 12. vertical strip; 13. reinforcement strip. DETAILED DESCRIPTION

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0018] This embodiment discloses a valve bag for packaging purposes, such as Figures 1 to 6 As shown, the utility model has the effect of preventing the valve bag from slipping and the valve bag has high strength, including a bag body 1 and a valve port 2; the bag body 1 is provided with a valve port 2; the valve port 2 is convenient for the material to pass through so that the material is placed in the bag body 1; a protective film 3 is provided on the inner side of the bag body 1; a reinforcing part 4 is provided on one side of the protective film 3; two ring buckles 5 are provided on the bag body 1; two rubber bands 6 are provided on the ring buckle 5, and each ring buckle 5 is provided with a rubber band 6; the bag body 1 is respectively provided with a connecting block 7 and a matching block 8; the connecting block 7 is connected to the matching block 8.

[0019] By adopting the above technical solution: the reinforcement part 4 is arranged inside the bag body 1 to improve the strength of the bag body 1; the protective film 3 arranged on one side of the bag body 1 can prevent external liquid from entering the bag body 1, thereby causing the material in the bag body 1 to be damp and damaged; the rubber band 6 arranged on the buckle 5 can tighten the valve bag when the bag body 1 is full of materials to prevent the bag body 1 from cracking; the connecting block 7 is connected with the matching block 8 so that the bag body 1 is firmly arranged to prevent the bag body 1 from slipping.

[0020] The bag body 1 is made of three to five layers of kraft paper bonded together; the protective film 3 is arranged on one side of the bag body 1; the reinforcing part 4 is made of polypropylene; the size of the reinforcing part 4 is consistent with the size of the bag body 1.

[0021] By adopting the above technical solution: kraft paper has the advantages of high tearing strength, rupture work and dynamic strength, and the bag body 1 is bonded by three to five layers of kraft paper to make the bag body 1 strong; the protective film 3 is arranged on one side of the bag body 1 to prevent external liquid from entering the bag body 1; the reinforcement part 4 is made of polypropylene plastic, which has good elasticity and high impact energy absorption capacity, so that the reinforcement part 4 has a stable structure and polypropylene can be recycled, which is beneficial to environmental protection; the size of the reinforcement part 4 is consistent with that of the bag body 1, so that the reinforcement part 4 can support the bag body 1, such as Figure 2 shown.

[0022] The buckles 5 are all provided with through holes 9 ; the rubber bands 6 pass through the through holes 9 and the contacting parts of the rubber bands 6 and the through holes 9 are bonded to the through holes 9 .

[0023] By adopting the above technical solution: the through hole 9 opened on the buckle 5 can allow the rubber band 6 to pass through, and the part of the rubber band 6 that contacts the through hole 9 is bonded to the through hole 9 so that the rubber band 6 is set on the side wall of the bag body 1 through the buckle 5; when the valve mouth 2 bag is full of materials, the rubber band 6 can be used to tighten the bag body 1 so that the rubber band 6 is arranged around the bag body 1 to prevent the bag body 1 from bursting; when the valve mouth 2 bag is not full of materials, the rubber band 6 can be used not to tighten the bag body 1 so that the rubber band 6 is naturally arranged on one side of the bag body 1.

[0024] Four connecting blocks 7 are arranged on one side of the bag body 1 ; each of the connecting blocks 7 is provided with a recess 10 ; four matching blocks 8 are arranged on the other side of the bag body 1 ; the matching blocks 8 are connected to the recess 10 .

[0025] By adopting the above technical solution: the groove on the connecting block 7 cooperates with the matching block 8 on the bag body 1 of another valve bag, so that the valve bag is more stable when stacked to prevent the valve bag from slipping; the connecting block 7 and the matching block 8 are both arranged at the four corners of the bag body 1. Compared with being arranged at other positions of the bag body 1, being arranged at the corners of the bag body 1 can make the bag body 1 stable when stacked.

[0026] The reinforcement portion 4 includes four bottom bars 11 , four vertical bars 12 , and eight reinforcement bars 13 ; the vertical bars 12 are arranged above the bottom bars 11 ; and the reinforcement bars 13 reinforce the vertical bars 12 .

[0027] By adopting the above technical solution: the bottom strip 11, the vertical strips 12 and the reinforcement strips 13 are all connected by bonding; the vertical strips 12 are arranged at the four corners of the bottom strip 11 after the connection is completed; the reinforcement strips 13 are arranged between the vertical strips 12 so as to reinforce the vertical strips 12.

[0028] In summary, the utility model has the following beneficial effects: the reinforcing part 4 is arranged inside the bag body 1 to improve the stability of the bag body 1 and thus improve the strength of the bag body 1; the bag body 1 is made of three layers of kraft paper so that the valve mouth 2 bag has high strength and thus can prevent the bag body 1 from cracking; the protective film 3 can prevent external liquid from entering the bag body 1 and thus can prevent the material in the bag body 1 from being damaged by moisture; the rubber band 6 arranged outside the bag body 1 can tighten the valve mouth 2 bag when the valve mouth 2 bag is full of materials, thereby making the valve mouth 2 bag more compact and preventing the bag body 1 of the valve mouth 2 bag from cracking due to squeezing; the matching block 8 arranged on one side of the valve mouth 2 bag can cooperate with the recess 10 on the connecting block 7 of another valve mouth 2 bag when stacking, so that the valve mouth 2 bag is firmly arranged and thus prevents the valve mouth 2 bag from slipping.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A valve bag for packaging purposes, comprising a bag body (1) and a valve port (2), characterized in that: The bag body (1) is provided with a valve opening (2); a protective film (3) is provided on the inner side of the bag body (1); a reinforcing portion (4) is provided on one side of the protective film (3); a plurality of buckles (5) are provided on the bag body (1); a plurality of rubber bands (6) are provided on the buckles (5); a connecting block (7) and a matching block (8) are respectively provided on the bag body (1); the connecting block (7) is connected to the matching block (8).

2. The valve bag for packaging according to claim 1, characterized in that: The bag body (1) is made of several layers of kraft paper bonded together; the protective film (3) is arranged on one side of the bag body (1); the reinforcing part (4) is made of polypropylene; the size of the reinforcing part (4) is consistent with the size of the bag body (1).

3. The valve bag for packaging according to claim 2, characterized in that: The buckle (5) is provided with a through hole (9); the rubber band (6) passes through the through hole (9), and the portion of the rubber band (6) in contact with the through hole (9) is fixedly connected to the through hole (9).

4. The valve bag for packaging according to claim 3, characterized in that: A plurality of connecting blocks (7) are arranged on one side of the bag body (1); a recess (10) is provided on the connecting block (7); a plurality of matching blocks (8) are arranged on the other side of the bag body (1); and the matching blocks (8) are connected to the recess (10).

5. The valve bag for packaging according to claim 4, characterized in that: The reinforcement portion (4) comprises a plurality of bottom bars (11), a plurality of vertical bars (12), and a plurality of reinforcing bars (13); the vertical bars (12) are arranged above the bottom bars (11); and the reinforcing bars (13) reinforce the vertical bars (12).

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