Self-exhausting three-dimensional vacuum bag

Abstract

The utility model discloses a self-exhausting three-dimensional vacuum bag, which belongs to the field of packaging bags and comprises a bag body, one side of the bag body is fixedly connected with a one-way valve, the outer surface of the bag body is fixedly connected with a protective sleeve close to the periphery of the one-way valve, the one-way valve is positioned in the protective sleeve, and a sealing cover is arranged at an opening of the protective sleeve. A sealing groove is reserved between the protecting sleeve and the one-way valve, a sealing ring matched with the sealing groove is arranged on one side of the sealing cover, an elastic clamping ring is arranged on the outer circumference of the sealing ring, and an annular clamping groove matched with the elastic clamping ring is formed in the inner circumference of the protecting sleeve. Through the arrangement of the protecting sleeve, the sealing cover, the sealing groove, the sealing ring, the elastic clamping ring and the annular clamping groove, after the one-way valve is used, the sealing cover can cover the protecting sleeve, the sealing ring is inserted into the sealing groove, the elastic clamping ring is clamped into the annular clamping groove, the one-way valve is protected through the protecting sleeve and the sealing cover, the one-way valve is prevented from being touched and leaking air, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging bags, and particularly relates to a self-exhausting three-dimensional vacuum bag. Background Art

[0002] Vacuum bags, also known as body-hugging moisture-proof bags, aluminum foil bags, and aluminum-plastic composite bags, have good anti-static, oxygen isolation, shielding, moisture-proof, light-shielding functions and excellent heat-sealing properties, and are widely and commonly used in today's social life.

[0003] The existing Chinese patent with the publication number CN213110492U discloses a self-exhausting three-dimensional vacuum bag, including: a bag mouth sealing structure, which is arranged inside the closable opening of the bag body; a one-way valve, which is arranged on the bag body; side sealing edges, which are arranged on the left and right sides of the bag body; a three-dimensional bag bottom, the three-dimensional bag bottom includes three-dimensional bag feet, the three-dimensional bag feet include two first bag feet and two second bag feet, the first bag foot includes a first film and a third film, the second bag foot includes a second film and a third film, the first bag foot is formed by thermally fusing the first film and the third film at the edge, and the second bag foot is formed by thermally fusing the second film and the third film at the edge; a reinforcing strip, the reinforcing strip is a ring structure, the reinforcing strip is formed by thermally fusing two layers of annular plastic films, the reinforcing strip includes a first reinforcing strip and a second reinforcing strip, the first reinforcing strip is arranged on the first bag foot, the second reinforcing strip is arranged on the second bag foot, the first reinforcing strip and the second reinforcing strip are respectively arranged on both sides of the center line of the bag bottom, and the first reinforcing strip is fixedly connected to the second reinforcing strip; a bottom sealing edge, the bottom sealing edge is arranged at the bottom of the bag body, and the bottom sealing edge is formed by thermally fusing two layers of plastic films.

[0004] In view of the above related technologies, the inventor found that at least the following problems exist in this technology: the one-way valve of the existing vacuum bag is usually exposed on the outer surface of the packaging bag, and it is easy to cause air leakage when the one-way valve is touched during the transportation or transfer of the vacuum bag, posing a safety hazard. Content of the Utility Model

[0005] The purpose of the present utility model is to provide a self-exhausting three-dimensional vacuum bag to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present utility model provides the following technical solution: a self-exhausting three-dimensional vacuum bag, including a bag body, one side of the bag body is fixedly connected with a one-way valve, a protective sleeve is fixedly connected to the outer surface of the bag body around the one-way valve, the one-way valve is located inside the protective sleeve, a sealing cover is arranged at the opening of the protective sleeve, a sealing groove is reserved between the protective sleeve and the one-way valve, a sealing ring adapted to the sealing groove is arranged on one side of the sealing cover, an elastic snap ring is arranged on the outer circumference of the sealing ring, and an annular clamping groove adapted to the elastic snap ring is opened on the inner circumference of the protective sleeve.

[0007] As a preferred embodiment, a rubber sealing ring is embedded inside the sealing groove, and the sealing ring abuts against the rubber sealing ring.

[0008] As a preferred embodiment, a hanging rope is fixedly connected to the surface of the sealing cover, and the hanging rope is fixedly connected to the outer surface of the bag body.

[0009] As a preferred embodiment, a reinforcing layer is fixedly connected to the outer surface of the bag body, and the reinforcing layer is a carbon fiber film.

[0010] As a preferred embodiment, two mutually adhered bag mouth membrane pieces are fixedly connected to the top of the bag body, and a pull tab is provided on one side of the bag mouth membrane piece.

[0011] As a preferred embodiment, a through hole is formed in the middle of the bag mouth membrane piece.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] For this self-exhausting three-dimensional vacuum bag, through the settings of the protective sleeve, the sealing cover, the sealing groove, the sealing ring, the elastic snap ring and the annular clamping groove, after the one-way valve is used, the sealing cover can be covered on the protective sleeve, the sealing ring is inserted into the sealing groove, and the elastic snap ring is snapped into the annular clamping groove, so as to protect the one-way valve through the protective sleeve and the sealing cover, prevent the one-way valve from being touched and leaking air, and reduce potential safety hazards;

[0014] For this self-exhausting three-dimensional vacuum bag, through the setting of the rubber sealing ring, the sealing effect of the sealing cover can be improved, and through the setting of the hanging rope, the sealing cover can be hung to prevent the sealing cover from being lost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the structure when the sealing cover of the present utility model is opened;

[0017] Figure 3 is for the present utility model Figure 2 is an enlarged schematic diagram of the structure at A in;

[0018] Figure 4 is a schematic cross-sectional structure diagram of the protective sleeve of the present utility model.

[0019] In the figure: 1. Bag body; 2. One-way valve; 3. Protective sleeve; 4. Sealing cover; 5. Sealing groove; 6. Sealing ring; 7. Elastic snap ring; 8. Annular clamping groove; 9. Rubber sealing ring; 10. Hanging rope; 11. Reinforcing layer; 12. Bag mouth membrane piece; 13. Pull tab; 14. Through hole. Detailed implementation mode

[0020] The following describes the present utility model in further detail with reference to embodiments.

[0021] The following embodiments are used to illustrate the present utility model, but cannot be used to limit the protection scope of the present utility model. The conditions in the embodiments can be further adjusted according to specific conditions. Any simple improvement to the method of the present utility model under the premise of the concept of the present utility model belongs to the scope protected by the present utility model.

[0022] Please refer to Figures 1-4 , the present utility model provides a self-exhausting three-dimensional vacuum bag, which includes a bag body 1. Two mutually adhered bag mouth membrane pieces 12 are fixedly connected to the top of the bag body 1. An easy-pull strip 13 is provided on one side of the bag mouth membrane piece 12, and the bag mouth membrane piece 12 can be easily torn open through the easy-pull strip 13. A through hole 14 is opened in the middle of the bag mouth membrane piece 12. Through the setting of the through hole 14, it is convenient to hang the bag body 1.

[0023] A one-way valve 2 is fixedly connected to one side of the bag body 1. The air in the bag body 1 can be discharged through the one-way valve 2. A protective sleeve 3 is fixedly connected to the outer surface of the bag body 1 around the one-way valve 2. The one-way valve 2 is located inside the protective sleeve 3. A sealing cover 4 is provided at the opening of the protective sleeve 3. A sealing groove 5 is reserved between the protective sleeve 3 and the one-way valve 2. A sealing ring 6 adapted to the sealing groove 5 is provided on one side of the sealing cover 4. An elastic snap ring 7 is provided on the outer circumference of the sealing ring 6. An annular card slot 8 adapted to the elastic snap ring 7 is opened on the inner circumference of the protective sleeve 3. Through the settings of the protective sleeve 3, the sealing cover 4, the sealing groove 5, the sealing ring 6, the elastic snap ring 7 and the annular card slot 8, after the one-way valve 2 is used, the sealing cover 4 can be covered on the protective sleeve 3, the sealing ring 6 is inserted into the sealing groove 5, and the elastic snap ring 7 is snapped into the annular card slot 8. The one-way valve 2 is protected by the protective sleeve 3 and the sealing cover 4 to prevent the one-way valve 2 from being touched and leaking air, reducing potential safety hazards.

[0024] Among them, a rubber sealing ring 9 is embedded in the sealing groove 5, and the sealing ring 6 abuts against the rubber sealing ring 9. Through the setting of the rubber sealing ring 9, the sealing effect of the sealing cover 4 can be improved.

[0025] Among them, a hanging rope 10 is fixedly connected to the surface of the sealing cover 4, and the hanging rope 10 is fixedly connected to the outer surface of the bag body 1. Through the setting of the hanging rope 10, the sealing cover 4 can be hung to prevent the sealing cover 4 from being lost.

[0026] Among them, a reinforcing layer 11 is fixedly connected to the outer surface of the bag body 1. The reinforcing layer 11 is a carbon fiber film. Through the setting of the reinforcing layer 11, the carbon fiber film has extremely strong toughness and impact resistance, which can improve the firmness of the bag body 1 and make the bag body 1 not easily damaged.

[0027] Working principle and usage process of the present utility model: First, through the settings of the protective sleeve 3, the sealing cover 4, the sealing groove 5, the sealing ring 6, the elastic snap ring 7 and the annular card slot 8, after the one-way valve 2 is used, the sealing cover 4 can be covered on the protective sleeve 3, the sealing ring 6 is inserted into the sealing groove 5, and the elastic snap ring 7 is snapped into the annular card slot 8. The one-way valve 2 is protected by the protective sleeve 3 and the sealing cover 4 to prevent the one-way valve 2 from leaking air due to being touched, reducing potential safety hazards.

[0028] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A self-exhausting three-dimensional vacuum bag, comprising a bag body (1), characterized in that: One side of the bag body (1) is fixedly connected with a one-way valve (2). A protective sleeve (3) is fixedly connected around the outer surface of the bag body (1) near the one-way valve (2). The one-way valve (2) is located inside the protective sleeve (3). A sealing cover (4) is provided at the opening of the protective sleeve (3). A sealing groove (5) is reserved between the protective sleeve (3) and the one-way valve (2). One side of the sealing cover (4) is provided with a sealing ring (6) adapted to the sealing groove (5). An elastic snap ring (7) is provided on the outer circumference of the sealing ring (6). An annular clamping groove (8) adapted to the elastic snap ring (7) is formed on the inner circumference of the protective sleeve (3).

2. The self-exhausting three-dimensional vacuum bag according to claim 1, characterized in that: A rubber sealing ring (9) is embedded inside the sealing groove (5). The sealing ring (6) abuts against the rubber sealing ring (9).

3. The self-exhausting three-dimensional vacuum bag according to claim 1, characterized in that: A hanging rope (10) is fixedly connected to the surface of the sealing cover (4). The hanging rope (10) is fixedly connected to the outer surface of the bag body (1).

4. The self-exhausting three-dimensional vacuum bag according to claim 1, wherein: A reinforcing layer (11) is fixedly connected to the outer surface of the bag body (1). The reinforcing layer (11) is a carbon fiber film.

5. The self-exhausting three-dimensional vacuum bag according to claim 1, characterized in that: Two mutually bonded bag mouth membranes (12) are fixedly connected to the top of the bag body (1). An easy-pull strip (13) is provided on one side of the bag mouth membrane (12).

6. The self-exhausting three-dimensional vacuum bag according to claim 5, wherein: A through hole (14) is formed in the middle of the bag mouth membrane (12).

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