Degradable vacuum bag

Abstract

The utility model discloses a degradable vacuum bag which comprises a bag body and a sealing zipper, arc-shaped side bags are fixedly connected to the front side and the rear side of the top of the bag body, the tops of the arc-shaped side bags are fixedly connected with the bottom of the sealing zipper, and first side edge supporting edges are fixedly connected to the inner sides of the left portions of the arc-shaped side bags. The air closing mechanism is pulled upwards to enable the rubber ring to move upwards to open the air hole, the vacuum device is started to extract air in the bag body, after the air in the bag body is extracted, the air closing mechanism is loosened to reset, the air hole is closed by the rubber ring, and then the vacuum device is disconnected from the rubber air pipe. Therefore, the effect that after the vacuum bag is vacuumized by the vacuum device, when the vacuum device and the vacuum bag connecting pipe are disconnected, air enters the vacuum bag through the connecting pipe, and the situation that the vacuum effect is affected due to the fact that the air flows back into the vacuum bag is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of vacuum bag technology, specifically a biodegradable vacuum bag. Background Technology

[0002] Vacuum bags are bags that are easy to vacuum-seal. With the development of technology and the rise of the logistics and transportation industry, vacuum bags are playing an increasingly important role and appearing in various fields such as daily work, life, and production. For example, vacuum bags can be used in food packaging, pharmaceutical packaging, and packaging of precision electronic components.

[0003] A search revealed Chinese patent application number 202420345011.2, which discloses a biodegradable vacuum bag. This biodegradable vacuum bag includes a vacuum nozzle, a connecting block, and a biodegradable bag body. The vacuum nozzle is connected to the biodegradable bag body via the connecting block. A conical hole is formed in the middle region of the connecting block. During operation, an external vacuum device evacuates the biodegradable bag body through a vacuum hose. After vacuuming, rotating the drive threaded cap causes the drive extrusion column to rotate and move downwards, driving the receiving block. The receiving block moves downwards along the threaded tube, extruding a soft conical extrusion block. The receiving block, combined with the conical hole, extrudes the soft conical extrusion block, deforming it and thus extruding the vacuum hose, achieving a sealed vacuum hose. After the vacuum hose is sealed, disconnect the output end of the external vacuum pump from the vacuum hose, and then place the connecting cover on the drive thread cover so that the input end of the vacuum hose is contained inside the connecting cover, preventing dust and other impurities from entering the input end of the vacuum hose.

[0004] Although the aforementioned patent places the connecting cover on the drive thread cover, so that the input end of the vacuum hose is contained inside the connecting cover, preventing dust and other impurities from entering the input end of the vacuum hose, in actual use, when the vacuum device is used to evacuate the vacuum bag and then disconnected from the vacuum bag, air will enter the interior of the vacuum bag through the vacuum hose during the movement of the soft conical extrusion block, affecting the sealing effect of the vacuum bag and causing inconvenience to the user.

[0005] Therefore, it is necessary to modify it to effectively prevent air from entering the vacuum bag through the connecting pipe after the vacuum device has finished evacuating the vacuum bag and the connecting pipe between the vacuum device and the vacuum bag is disconnected, thus avoiding the situation where air flows back into the vacuum bag and affects the vacuum effect. Utility Model Content

[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide a biodegradable vacuum bag that effectively prevents air from entering the vacuum bag through the connecting pipe after the vacuum device has finished evacuating the vacuum bag and then disconnecting the vacuum device from the vacuum bag. This avoids air backflow into the vacuum bag, which would affect the vacuum effect. It also solves the problem that when the vacuum device is disconnected from the vacuum bag after evacuating the vacuum bag, air can enter the vacuum bag through the vacuum hose during the movement of the soft conical extrusion block, affecting the sealing effect of the vacuum bag and causing inconvenience to the user.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a biodegradable vacuum bag, comprising a bag body and a sealing zipper. Arc-shaped side bags are fixedly connected to the front and rear sides of the top of the bag body. The top of the arc-shaped side bags is fixedly connected to the bottom of the sealing zipper. A first side support is fixedly connected to the inner left side of the arc-shaped side bags, and the top of the first side support is fixedly connected to the bottom of the sealing zipper. A second side support is fixedly connected to the inner right side of the arc-shaped side bags, and the top of the second side support fits against the bottom of the sealing zipper. A first circular groove is formed on the right side of the sealing zipper, and a second circular groove communicating with the first circular groove is formed on the top of the second side support. A vent hole is formed inside the second side support, communicating with the second circular groove. An air-sealing mechanism is slidably connected inside the second circular groove, and the top of the air-sealing mechanism extends to the top of the first circular groove. A rubber air tube is connected to the right side of the vent hole. All the materials used in the above structures are biodegradable.

[0008] As a preferred embodiment of the present invention, the bag body includes front and rear main bags fixedly connected to the bottom of the arc-shaped side bag, bottom side bags fixedly connected to the bottom of the front and rear main bags, and side bags fixedly connected to the left and right sides of the front and rear main bags, with the tops of the two side bags fixedly connected to the bottoms of the first side support and the second side support, respectively.

[0009] As a preferred embodiment of this utility model, the air-sealing mechanism includes a rubber ring that fits against the inner wall of the second circular groove. A round rod is fixedly connected inside the rubber ring. The top of the round rod extends to the top of the first circular groove and is fixedly connected to a pull ring. A tension spring is sleeved on the upper surface of the round rod. The top of the tension spring is fixedly connected to the bottom of the pull ring, and the bottom of the tension spring is fixedly connected to the top of the sealing zipper.

[0010] As a preferred embodiment of this utility model, a number of evenly distributed support strips are fixedly connected to the inner surface of the front and rear main body bags, and the left and right ends of the support strips are fixedly connected to the inner side of the side bags.

[0011] As a preferred embodiment of this utility model, the side pocket has a longitudinal fold line in the center, and the bottom pocket has a transverse fold line in the center.

[0012] In a preferred embodiment of this invention, the length of the rubber ring is greater than the diameter of the vent hole, the surface diameter of the rubber ring is greater than the diameter of the vent hole, and the tension length of the tension spring is greater than the distance from the bottom of the round rod to the top of the second round groove.

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

[0014] 1. This utility model effectively prevents air from entering the vacuum bag by pulling the air-sealing mechanism upward to release the right zipper head of the sealing zipper. Then, pulling the zipper head to the left opens the sealing zipper, allowing the items to be vacuum-sealed to be placed inside the bag. Pulling the zipper head to the right closes the sealing zipper, causing the tops of the front and rear curved side bags to fit tightly together, sealing the bottom of the sealing zipper. The rubber air tube is then connected to the vacuum device. Pulling the air-sealing mechanism upward moves the rubber ring upward to open the vent, activating the vacuum device to extract air from the bag. Once the air is extracted, the air-sealing mechanism is released to reset, and the rubber ring seals the vent. The vacuum device is then disconnected from the rubber air tube. This effectively prevents air from entering the vacuum bag through the connecting tube after the vacuum device has vacuumed the bag, thus avoiding air backflow into the vacuum bag and affecting the vacuum effect.

[0015] 2. This utility model uses a combination of front and rear main bags, a bottom bag, and side bags. When a vacuum device is used to vacuum the bag, the internal air pressure decreases and the bag contracts. The bottom bag and side bags begin to contract first, bringing the two front and rear main bags closer together and into contact with the items inside the bag until the inside of the bag is completely vacuumed. The front and rear main bags then wrap around the surface of the items, accelerating the vacuuming process and improving the vacuum protection effect on the items. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the right-side structure of this utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 4 This utility model Figure 3 A magnified structural diagram of A in the middle.

[0020] In the diagram: 1. Bag body; 2. Sealing zipper; 3. Curved side pocket; 4. First side support edge; 5. Second side support edge; 6. First circular groove; 7. Second circular groove; 8. Ventilation hole; 9. Air-sealing mechanism; 10. Rubber air tube; 11. Front and rear main body pockets; 12. Bottom pocket; 13. Side pockets; 14. Rubber ring; 15. Round rod; 16. Pull ring; 17. Tension spring; 18. Support strip; 19. Longitudinal fold; 20. Transverse fold. Detailed Implementation

[0021] 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.

[0022] like Figures 1 to 4 As shown, this utility model provides a biodegradable vacuum bag, including a bag body 1 and a sealing zipper 2. Arc-shaped side bags 3 are fixedly connected to the front and rear sides of the top of the bag body 1. The top of the arc-shaped side bags 3 is fixedly connected to the bottom of the sealing zipper 2. A first side support edge 4 is fixedly connected to the inner left side of the arc-shaped side bags 3, and the top of the first side support edge 4 is fixedly connected to the bottom of the sealing zipper 2. A second side support edge 5 is fixedly connected to the inner right side of the arc-shaped side bags 3, and the top of the second side support edge 5 is fixedly connected to the sealing zipper. The bottom of 2 is fitted together, and the right side of the sealing zipper 2 has a first circular groove 6 that runs vertically through it. The top of the second side support 5 has a second circular groove 7 that communicates with the first circular groove 6. The inside of the second side support 5 has a ventilation hole 8 that runs horizontally through it and communicates with the second circular groove 7. The inside of the second circular groove 7 is slidably connected to an air-sealing mechanism 9. The top of the air-sealing mechanism 9 extends to the top of the first circular groove 6. The right side of the ventilation hole 8 is connected to a rubber air tube 10. All of the above structures are made of biodegradable materials.

[0023] refer to Figure 1 The bag body 1 includes front and rear main body bags 11 fixedly connected to the bottom of the arc-shaped side bag 3. The bottom of the front and rear main body bags 11 is fixedly connected to the bottom of the bottom side bag 12. The left and right sides of the front and rear main body bags 11 are fixedly connected to the side bags 13, and the top of the two side bags 13 is fixedly connected to the bottom of the first side support 4 and the second side support 5, respectively.

[0024] As a technical optimization of this utility model, by setting up the coordinated use of front and rear main body bags 11, bottom plate bag and side bag 13, when the vacuum device is used to vacuum the bag body 1, the air pressure inside the bag body 1 decreases and contracts. The bottom plate bag and side bag 13 begin to contract first, so that the two front and rear main body bags 11 move closer to each other and come into contact with the items inside the bag body 1 until the inside of the bag body 1 is completely vacuumed. The front and rear main body bags 11 wrap around the surface of the items, which speeds up the vacuuming speed of the bag body 1 and improves the vacuum protection effect on the items.

[0025] refer to Figure 4 The air-sealing mechanism 9 includes a rubber ring 14 that fits against the inner wall of the second circular groove 7. A round rod 15 is fixedly connected inside the rubber ring 14. The top of the round rod 15 extends to the top of the first circular groove 6 and is fixedly connected to a pull ring 16. A tension spring 17 is sleeved on the upper surface of the round rod 15. The top of the tension spring 17 is fixedly connected to the bottom of the pull ring 16, and the bottom of the tension spring 17 is fixedly connected to the top of the sealing zipper 2.

[0026] As a technical optimization of this utility model, by setting up the rubber ring 14, the round rod 15, the pull ring 16 and the tension spring 17 in cooperation, when vacuuming is required, pulling the pull ring 16 upward will drive the round rod 15 upward. When the round rod 15 moves upward, it will drive the rubber ring 14 upward, so that the vent hole 8 is unobstructed, which will facilitate the air inside the bag 1 to be discharged. After vacuuming is completed, the pull ring 16 can be released. The pull ring 16 is pulled downward by the tension spring 17 and resets, which will drive the round rod 15 and the rubber ring 14 to reset, blocking the vent hole 8 and preventing the external air from flowing back. At the same time, it will fix the zipper head of the sealing zipper 2 and prevent the sealing zipper 2 from opening and leaking air.

[0027] refer to Figure 3 Several evenly distributed support strips 18 are fixedly connected to the surface inside the front and rear main bags 11, and the left and right ends of the support strips 18 are fixedly connected to the inside of the side bags 13.

[0028] As a technical optimization of this utility model, by setting support bars 18, the front and rear main bags 11 are supported, so that they maintain their shape when items that need to be vacuumed are put into the bag body 1, making it convenient to put the items in. At the same time, the strength of the bag body 1 is increased, and the bag body 1 is prevented from breaking or being damaged during the vacuuming operation.

[0029] refer to Figure 2 The side pocket 13 has a vertical fold 19 in the center, and the bottom pocket 12 has a horizontal fold 20 in the center.

[0030] As a technical optimization of this utility model, by setting longitudinal fold lines 19 and transverse fold lines 20, the side pockets 13 and bottom pockets 12 can be more easily folded and contracted during vacuuming, thereby speeding up the vacuuming process and improving the vacuum effect.

[0031] refer to Figure 4 The length of the rubber ring 14 is greater than the diameter of the vent hole 8, the surface diameter of the rubber ring 14 is greater than the diameter of the vent hole 8, and the tension length of the tension spring 17 is greater than the distance from the bottom of the round rod 15 to the top of the second round groove 7.

[0032] As a technical optimization of this utility model, by setting a rubber ring 14 with a length and surface diameter greater than the diameter of the vent hole 8, it is ensured that the rubber ring 14 can seal tightly when sealing the vent hole 8, avoiding air leakage when the rubber ring 14 seals the vent hole 8, which would affect the use. By setting a tension spring 17 with a tensile length greater than the distance from the bottom of the round rod 15 to the top of the second round groove 7, it is ensured that when the pull ring 16 is pulled upward, the bottom of the round rod 15 can move to the top of the second round groove 7, which facilitates the left and right sliding of the zipper head of the sealing zipper 2.

[0033] The working principle and usage process of this utility model are as follows: Pull the air-sealing mechanism 9 upward to release the fixation of the right zipper head of the sealing zipper 2, then pull the zipper head to the left to open the sealing zipper 2, put the item to be vacuumed into the bag body 1, and then pull the zipper head to the right to close the sealing zipper 2. When the sealing zipper 2 is closed, it causes the top of the front and rear arc-shaped side bags 3 to fit tightly, sealing the bottom of the sealing zipper 2. Then, connect the rubber air tube 10 to the vacuum device, pull the air-sealing mechanism 9 upward to move the rubber ring 14 upward to open the vent hole 8, and start the vacuum device to extract the air from the inside of the bag body 1. After the air inside the bag body 1 is extracted, release the air-sealing mechanism 9 to reset it, and the rubber ring 14 will seal the vent hole 8. Then disconnect the vacuum device from the rubber air tube 10. This effectively prevents air from entering the vacuum bag through the connecting tube after the vacuum device has finished vacuuming the vacuum bag and disconnecting the vacuum device from the vacuum bag connecting tube, thus avoiding the situation where air flows back into the vacuum bag and affects the vacuum effect.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A degradable vacuum bag comprising a bag body (1) and a sealing zipper (2), characterized in that: The bag body (1) top of both sides is fixedly connected with arc edge bag (3), the top of arc edge bag (3) is fixedly connected with the bottom of sealing zipper (2), the left side of arc edge bag (3) is fixedly connected with first side edge support (4), the top of first side edge support (4) is fixedly connected with the bottom of sealing zipper (2), the right side of arc edge bag (3) is fixedly connected with second side edge support (5), the top of second side edge support (5) is fixedly connected with the bottom of sealing zipper (2), the right side of sealing zipper (2) is provided with first circular groove (6) that passes through up and down, the top of second side edge support (5) is provided with second circular groove (7) that communicates with first circular groove (6), the inside of second side edge support (5) is provided with left and right through and communicates with second circular groove (7) air hole (8), the inside of second circular groove (7) is slidably connected with air closing mechanism (9), the top of air closing mechanism (9) extends to the top of first circular groove (6), the right side of air hole (8) is communicated with rubber air pipe (10).

2. A degradable vacuum bag according to claim 1, wherein: The bag body (1) includes fixedly connected with the bottom of arc edge bag (3) front and back main bag (11), the bottom of front and back main bag (11) is fixedly connected with bottom edge bag (12), the left and right sides of front and back main bag (11) are fixedly connected with side edge bag (13).

3. A degradable vacuum bag according to claim 1, wherein: The air closing mechanism (9) includes rubber ring (14) that is attached to the inner wall of second circular groove (7), the inside of rubber ring (14) is fixedly connected with round rod (15), the top of round rod (15) extends to the top of first circular groove (6) and is fixedly connected with pull ring (16), the surface of round rod (15) is provided with pull spring (17) above.

4. A degradable vacuum bag according to claim 2, wherein: The surface in front and back main bag (11) is fixedly connected with several number evenly distributed support strips (18), the left and right ends of support strip (18) are fixedly connected with the inside of side edge bag (13).

5. A degradable vacuum bag according to claim 2, wherein: The central part of side edge bag (13) is provided with longitudinal fold line (19), the central part of bottom edge bag (12) is provided with horizontal fold line (20).

6. A degradable vacuum bag according to claim 3, wherein: The length of rubber ring (14) is greater than the diameter of air hole (8), the surface diameter of rubber ring (14) is greater than the diameter of air hole (8), the extension length of pull spring (17) is greater than the distance from the bottom of round rod (15) to the top of second circular groove (7).

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