Fully biodegradable packaging bag

Abstract

The utility model discloses full biodegradable packing bag, including bag body and connecting mouth, the connecting mouth is set up in the front and rear two sides lateral wall of bag body, the both sides of bag body are set up as the bending part of bending, the rear wall of bag body is provided with fixed plate, the lateral wall fixed mounting of fixed plate is close to the top and is provided with the mounting frame, the upper surface fixed mounting of mounting frame is provided with two fixed bases. The utility model discloses, through setting up bag body, bending part, connecting mouth, fixed plate, mounting frame, fixed base, pull handle, connecting block, support rod, rotating block, pressing plate, torsional spring, mounting plate, mounting block, limit board, drive board and fixed frame, the function of protecting the hand of user is realized, through connecting packing bag with detachable pull handle, make the hand of user not with packing bag direct contact, thereby avoiding the hand of user and producing pain or numbness because of packing bag, prevent packing bag from falling, improved the practicality of packing bag.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag technology, and in particular to fully biodegradable packaging bags. Background Technology

[0002] Plastic bags are an indispensable item in people's daily lives, often used to pack other items. They are widely used due to their low price, light weight, and ease of storage. However, with the large-scale use of plastic bags, the number of discarded plastic bags has increased, causing serious environmental pollution. In order to improve the environmental pollution caused by discarded plastic bags, biodegradable bags have emerged.

[0003] In the present technology, biodegradable bags are almost indistinguishable from ordinary plastic packaging bags in appearance. Some packaging bags have handles, while others do not. Packaging bags without handles usually have an opening on the bag body. However, this design can be very uncomfortable to hold when the packaging bag is full of heavy items. Holding it for a long time can cause pain and numbness in the user's hands, and the packaging bag is more likely to fall, thus reducing its practicality. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a fully biodegradable packaging bag.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a fully biodegradable packaging bag, comprising a bag body and a connecting port, wherein the connecting port is opened through the front and rear side walls of the bag body, the two sides of the bag body are bent to form a folded portion, a fixing plate is provided on the rear wall of the bag body, an installation frame is fixedly installed on the side wall of the fixing plate near the top, two fixing seats are fixedly installed on the upper surface of the installation frame, a pull handle is rotatably connected to the inner walls of the two fixing seats, a connecting block is fixedly installed on the side wall of the fixing plate near the bag body, a support rod is fixedly installed on the inner wall of the installation frame, a rotating block is sleeved on the outer surface of the middle position of the support rod, a pressure plate is fixedly installed on the outer surface of the rotating block, torsion springs are sleeved on the outer surfaces of both ends of the support rod, and a reinforcing component is provided inside the bag body.

[0006] As a further description of the above technical solution:

[0007] The connecting block is inserted into the connecting port, and the side wall of the pressure plate is provided with a connecting groove, and the connecting block is adapted to the connecting groove.

[0008] As a further description of the above technical solution:

[0009] The ends of the two torsion springs that are far apart are fixedly connected to the inner walls of the two sides of the mounting frame, and the ends of the two torsion springs that are close together are fixedly connected to the two ends of the rotating block.

[0010] As a further description of the above technical solution:

[0011] An mounting plate is fixedly installed at one end of the fixed plate, an mounting block is fixedly installed on the side wall of the mounting plate, a limit plate is rotatably connected to the side wall of the mounting block, a driving plate is fixedly installed on the outer surface of the limit plate, and a fixing frame is fixedly installed on the side wall of the pressure plate.

[0012] As a further description of the above technical solution:

[0013] The fixed frame is L-shaped, the limiting plate is adapted to the fixed frame, and the limiting plate abuts against the pressure plate.

[0014] As a further description of the above technical solution:

[0015] The reinforcing components include longitudinal reinforcing band A and longitudinal reinforcing band B. Longitudinal reinforcing band A is longitudinally fixedly installed on the inner walls of the front and rear sides and the bottom wall of the bag body. Longitudinal reinforcing band B is longitudinally fixedly installed on the side walls of the two bends and the bottom wall of the bag body. Transverse reinforcing bands are fixedly installed on the inner walls of the front and rear sides and the inner walls of the two bends. A top reinforcing band is fixedly installed on the top of the bag body. Pre-creases are provided on the lower surface of the bag body.

[0016] As a further description of the above technical solution:

[0017] The bag body is made of polylactic acid, and the longitudinal reinforcing band A, longitudinal reinforcing band B, transverse reinforcing band and top reinforcing band are all made of polyhydroxyalkanoate.

[0018] This utility model has the following beneficial effects:

[0019] 1. Compared with existing technologies, this fully biodegradable packaging bag, through the design of the bag body, bending section, connecting port, fixing plate, mounting frame, fixing seat, handle, connecting block, support rod, rotating block, pressure plate, torsion spring, mounting plate, mounting block, limiting plate, driving plate and fixing frame, achieves the function of protecting the user's hands. By connecting the packaging bag to the detachable handle, the user's hands do not come into direct contact with the packaging bag, thereby avoiding pain or numbness caused by the packaging bag, preventing the packaging bag from falling, and improving the practicality of the packaging bag.

[0020] 2. Compared with existing technologies, this fully biodegradable packaging bag enhances the strength and tensile strength of the packaging bag by setting longitudinal reinforcing strips A, B, transverse reinforcing strips, top reinforcing strips, and pre-creases. Both polylactic acid and polyhydroxyalkanoate are fully biodegradable materials. By using polylactic acid to manufacture the bag body and polyhydroxyalkanoate to manufacture longitudinal reinforcing strips A, B, transverse reinforcing strips, and top reinforcing strips, the strength and tensile strength of the packaging bag are improved without causing environmental pollution. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the fully biodegradable packaging bag proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the fixing plate structure of the fully biodegradable packaging bag proposed in this utility model;

[0023] Figure 3 This is a schematic diagram of the pressure plate structure of the fully biodegradable packaging bag proposed in this utility model;

[0024] Figure 4 This is a schematic diagram of the limiting plate structure of the fully biodegradable packaging bag proposed in this utility model;

[0025] Figure 5 This is a schematic diagram of the reinforcing component structure of the fully biodegradable packaging bag proposed in this utility model;

[0026] Figure 6 This is a schematic diagram of the pre-crease structure of the fully biodegradable packaging bag proposed in this utility model.

[0027] Legend:

[0028] 1. Bag body; 2. Bending section; 3. Connecting port; 4. Fixing plate; 5. Mounting frame; 6. Fixing base; 7. Pull handle; 8. Connecting block; 9. Support rod; 10. Rotating block; 11. Pressure plate; 12. Torsion spring; 13. Mounting plate; 14. Mounting block; 15. Limiting plate; 16. Moving plate; 17. Fixing frame; 18. Longitudinal reinforcing band A; 19. Longitudinal reinforcing band B; 20. Transverse reinforcing band; 21. Top reinforcing band; 22. Pre-crease. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figures 1 to 6 The fully biodegradable packaging bag provided by this utility model includes a bag body 1 and a connecting port 3. The connecting port 3 is opened through the front and rear side walls of the bag body 1. The two sides of the bag body 1 are bent to form bending parts 2. A fixing plate 4 is provided on the rear wall of the bag body 1. An installation frame 5 is fixedly installed on the side wall of the fixing plate 4 near the top. Two fixing seats 6 are fixedly installed on the upper surface of the installation frame 5. The inner walls of the two fixing seats 6 are rotatably connected to a pull handle 7. A connecting block 8 is fixedly installed on the side wall of the fixing plate 4 near the bag body 1. 8 is inserted into the connector 3. A support rod 9 is fixedly installed on the inner wall of the mounting frame 5. A rotating block 10 is sleeved on the outer surface of the middle position of the support rod 9. A pressure plate 11 is fixedly installed on the outer surface of the rotating block 10. A connecting groove is opened on the side wall of the pressure plate 11. The connecting block 8 is adapted to the connecting groove. A torsion spring 12 is sleeved on the outer surface of both ends of the support rod 9. The ends of the two torsion springs 12 that are far apart are fixedly connected to the inner walls of both sides of the mounting frame 5, and the ends of the two torsion springs 12 that are close to each other are fixedly connected to the two ends of the rotating block 10.

[0031] To fix the position of the pressure plate 11, a mounting plate 13 is fixedly installed on one end of the fixing plate 4, a mounting block 14 is fixedly installed on the side wall of the mounting plate 13, a limiting plate 15 is rotatably connected to the side wall of the mounting block 14, a driving plate 16 is fixedly installed on the outer surface of the limiting plate 15, a fixing frame 17 is fixedly installed on the side wall of the pressure plate 11, the fixing frame 17 is L-shaped, the limiting plate 15 is adapted to the fixing frame 17, and the limiting plate 15 abuts against the pressure plate 11.

[0032] By incorporating a bag body 1, a bending section 2, a connecting port 3, a fixing plate 4, a mounting frame 5, a fixing base 6, a handle 7, a connecting block 8, a support rod 9, a rotating block 10, a pressure plate 11, a torsion spring 12, a mounting plate 13, a mounting block 14, a limiting plate 15, a driving plate 16, and a fixing frame 17, the system achieves the function of protecting the user's hands. By connecting the packaging bag to the detachable handle 7, the user's hands do not come into direct contact with the packaging bag, thereby avoiding pain or numbness caused by the packaging bag, preventing the packaging bag from falling, and improving the practicality of the packaging bag.

[0033] The bag body 1 has internal reinforcement components, including longitudinal reinforcement strips A18 and B19. Longitudinal reinforcement strip A18 is fixedly installed longitudinally on the inner walls of the front and rear sides and the bottom wall of the bag body 1. Longitudinal reinforcement strip B19 is fixedly installed longitudinally on the side walls of the two bends 2 and the bottom wall of the bag body 1. Transverse reinforcement strips 20 are fixedly installed on the inner walls of the front and rear sides and the inner walls of the two bends 2. Top reinforcement strip 21 is fixedly installed on the top of the bag body 1. The bag body 1 is made of polylactic acid. The longitudinal reinforcement strips A18, B19, 20 and 21 are all made of polyhydroxyalkanoate. The lower surface of the bag body 1 is folded with pre-creases 22.

[0034] By setting longitudinal reinforcing strips A18, B19, lateral reinforcing strips 20, top reinforcing strips 21, and pre-creases 22, the strength and tensile strength of the packaging bag are enhanced. Both polylactic acid and polyhydroxyalkanoate are completely biodegradable materials. When polylactic acid is used to manufacture the bag body 1 and polyhydroxyalkanoate is used to manufacture the longitudinal reinforcing strips A18, B19, lateral reinforcing strips 20, and top reinforcing strips 21, the strength and tensile strength of the packaging bag are improved without causing environmental pollution.

[0035] Working principle: When using the packaging bag, first open the bag body 1 through the bending part 2 and pre-crease 22, then put the items to be packed into the inside of the bag body 1, and then close the bag body 1. Next, bring the fixing plate 4 close to the bag body 1 so that the connecting block 8 is aligned with the connecting opening 3. Move the fixing plate 4 so that the connecting block 8 passes through the connecting opening 3. When the side wall of the fixing plate 4 contacts the bag body 1, rotate the pressure plate 11 downwards, so that the pressure plate 11 drives the rotating block 10 to rotate on the outer surface of the support rod 9. The torsion spring 12 twists and deforms, and the pressure plate 11 moves towards the bag body 1. When the pressure plate 11 contacts the bag body 1, the connecting block 8 is inserted into the connecting groove. Then, the upward undulating plate 16 drives the limiting plate 15 to install. The side wall of block 14 rotates, and the limiting plate 15 rotates towards the pressure plate 11. When the limiting plate 15 rotates into the interior of the fixing frame 17, it presses and fixes the pressure plate 11, thereby connecting the packaging bag to the handle 7. At this time, the packaging bag can be pulled by the handle 7. When the packaging bag needs to be put down, the driving plate 16 will be pushed away from the pressure plate 11, causing the limiting plate 15 to rotate upward. When the limiting plate 15 rotates out of the fixing frame 17 and no longer abuts against the pressure plate 11, the pressure on the pressure plate 11 is released, the torsion spring 12 returns to its original state, and the pressure plate 11 is rotated upward by the rotating block 10, thereby releasing the pressure and fixation on the bag body 1. Then the fixing plate 4 is moved away from the bag body 1, and the connecting block 8 slides out from the interior of the connecting port 3.

[0036] In this packaging bag, the longitudinal reinforcing strips A18, B19, 20, and 21 are the same as the bag body 1, and are all made of biodegradable materials. While improving the strength of the bag body 1, they can prevent environmental pollution.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fully biodegradable packaging bag, comprising a bag body (1) and a connecting port (3), characterized in that: The connection port (3) is opened through the front and rear side walls of the bag body (1). The two sides of the bag body (1) are bent to form a bending part (2). The rear wall of the bag body (1) is provided with a fixing plate (4). The side wall of the fixing plate (4) near the top is fixedly installed with an installation frame (5). The upper surface of the installation frame (5) is fixedly installed with two fixing seats (6). The inner walls of the two fixing seats (6) are rotatably connected with a handle (7). The side wall of the fixing plate (4) near the bag body (1) is fixedly installed with a connecting block (8). The inner wall of the installation frame (5) is fixedly installed with a support rod (9). The outer surface of the middle position of the support rod (9) is fitted with a rotating block (10). The outer surface of the rotating block (10) is fixedly installed with a pressure plate (11). The outer surfaces of both ends of the support rod (9) are fitted with torsion springs (12). The inside of the bag body (1) is provided with a reinforcing component.

2. The fully biodegradable packaging bag according to claim 1, characterized in that: The connecting block (8) is inserted into the connecting port (3), and the side wall of the pressure plate (11) is provided with a connecting groove, and the connecting block (8) is adapted to the connecting groove.

3. The fully biodegradable packaging bag according to claim 1, characterized in that: The ends of the two torsion springs (12) that are far apart are fixedly connected to the inner walls of the two sides of the mounting frame (5), and the ends of the two torsion springs (12) that are close together are fixedly connected to the two ends of the rotating block (10).

4. The fully biodegradable packaging bag according to claim 1, characterized in that: One end of the fixed plate (4) is fixedly installed with an installation plate (13), the side wall of the installation plate (13) is fixedly installed with an installation block (14), the side wall of the installation block (14) is rotatably connected with a limit plate (15), the outer surface of the limit plate (15) is fixedly installed with a driving plate (16), and the side wall of the pressure plate (11) is fixedly installed with a fixing frame (17).

5. The fully biodegradable packaging bag according to claim 4, characterized in that: The fixed frame (17) is L-shaped, the limiting plate (15) is adapted to the fixed frame (17), and the limiting plate (15) abuts against the pressure plate (11).

6. The fully biodegradable packaging bag according to claim 1, characterized in that: The reinforcing components include longitudinal reinforcing band A (18) and longitudinal reinforcing band B (19). The longitudinal reinforcing band A (18) is longitudinally fixedly installed on the inner walls of the front and rear sides and the bottom wall of the bag body (1). The longitudinal reinforcing band B (19) is longitudinally fixedly installed on the side walls of the two bends (2) and the bottom wall of the bag body (1). The inner walls of the front and rear sides of the bag body (1) and the inner walls of the two bends (2) are fixedly installed with transverse reinforcing bands (20). The top of the bag body (1) is fixedly installed with a top reinforcing band (21). The lower surface of the bag body (1) is folded and has pre-creases (22).

7. The fully biodegradable packaging bag according to claim 6, characterized in that: The bag body (1) is made of polylactic acid, and the longitudinal reinforcing band A (18), longitudinal reinforcing band B (19), transverse reinforcing band (20) and top reinforcing band (21) are all made of polyhydroxyalkanoate.

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