A packaging bag with good sealing performance

Abstract

The utility model discloses a packaging bag with good sealing performance, which relates to the technical field of packaging bags, including a packaging bag body, the inner side wall of the packaging bag body is installed with Velcro, the bottom of the packaging bag body is installed with a protective strip, the side wall of the packaging bag body is installed with a protective sleeve, and the inner wall of the protective sleeve is installed with a sealing mechanism. The utility model provides a sealing mechanism, when the items in the packaging bag body are stored, by pulling the pull rope, the limit rod is driven to shrink the side wall of the packaging bag body, and the single-sided magnetic sheet is used to adsorb and fix the inner side wall of the packaging bag body so that the inner side wall of the packaging bag body fits tightly. At this time, the sealing sleeve is inserted into the protective sleeve by pulling the pull rope to seal the packaging bag body, so as to prevent dust from entering the packaging bag body from the inner wall of the protective sleeve. The use of the pull rope and the limit rod makes the sealing of the packaging bag body more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bags, in particular to a packaging bag with good sealing performance. Background Art

[0002] A packaging bag refers to a bag used to package various supplies, which makes it convenient to transport and store goods during the production and circulation process. Portable outer packaging bags are widely used in life, but most of the existing portable outer packaging bags are open-type designs, and foreign objects can easily enter from the top opening. When in use, if there are too many items in the packaging bag and the weight is too large, the bottom of the bag is easily damaged, causing the items to leak out. Therefore, a packaging bag with good sealing properties is needed.

[0003] The existing packaging bag has the problem of poor sealing effect and inability to reinforce and protect the bottom of the packaging bag during operation, and therefore a packaging bag with good sealing performance is urgently needed. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a packaging bag with good sealing performance, so as to solve the problem that the existing packaging bags have poor sealing effect and cannot reinforce and protect the bottom of the packaging bags when in use.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a packaging bag with good sealing performance, comprising a packaging bag body, and a Velcro is installed on the inner side wall of the packaging bag body.

[0006] A protection strip is installed at the bottom of the packaging bag body.

[0007] A protective cover is installed on the side wall of the packaging bag body, a sealing mechanism is installed on the inner wall of the protective cover, the sealing mechanism includes a pull rope, a limiting ring, a sealing cover, a limiting rod, a single-sided magnetic sheet and a positioning cover, a pull rope is installed on the inner wall of the protective cover, a limiting ring is installed on the outer wall of the pull rope, a sealing cover is installed on the outer wall of the pull rope, a limiting rod is installed on the outer wall of the pull rope, a single-sided magnetic sheet is installed on the outer wall of the limiting rod, and a positioning cover is installed on the outer wall of the limiting rod.

[0008] Preferably, the Velcro is connected to the inner wall of the packaging bag body by sewing, and the Velcro is symmetrically arranged with the central axis of the packaging bag body as the center.

[0009] Preferably, the protection strips are sewn to the bottom of the packaging bag body, and the protection strips are evenly spaced and distributed around the central axis of the packaging bag body.

[0010] Preferably, the diameter of the limiting ring is larger than the diameter of the protective sleeve, and the sealing sleeve is plugged into the protective sleeve.

[0011] Preferably, the pulling rope is movably connected to the protective sleeve, and the limiting rod is slidably connected to the positioning sleeve.

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

[0013] 1. The utility model provides a Velcro, which allows the inner wall of the opening of the packaging bag body to be bonded, thereby preventing foreign matter from entering through the opening of the packaging bag body, causing contamination of the food placed inside the packaging bag body, and increasing the safety of the items stored inside the packaging bag body;

[0014] 2. The utility model provides a protective strip. Since the internal storage space of the packaging bag body is relatively large, when there are too many items stored in the packaging bag body and the weight is too large, the pressure on the bottom of the packaging bag body will increase relatively. Long-term use may cause the bottom of the packaging bag body to be damaged, thereby causing the items stored in the packaging bag body to leak out. The setting of the protective strip can transfer part of the pressure to the side wall of the packaging bag body, thereby preventing the bottom of the packaging bag body from being damaged due to excessive pressure.

[0015] 3. The utility model provides a sealing mechanism. When the items in the packaging bag body are stored, the pull rope is pulled to drive the limit rod to shrink the side wall of the packaging bag body, and the single-sided magnetic sheet is used to adsorb and fix the inner wall of the packaging bag body to fit tightly. At this time, the sealing sleeve is inserted into the protective sleeve by pulling the pull rope to seal the packaging bag body, preventing dust from entering the packaging bag body from the inner wall of the protective sleeve. The coordinated use of the pull rope and the limit rod makes the sealing of the packaging bag body more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a schematic diagram of the structure of the utility model from the side;

[0018] Figure 3 This is a schematic diagram showing the structure of the internal components of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the sealing mechanism of the utility model;

[0020] Figure 5 For this utility model Figure 4 Schematic diagram of the structure of the enlarged view of part A in the middle.

[0021] In the figure: 1. packaging bag body; 2. Velcro; 3. protective strip; 4. protective cover; 5. sealing mechanism; 501. pull rope; 502. limiting ring; 503. sealing cover; 504. limiting rod; 505. single-sided magnetic sheet; 506. positioning cover. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0023] The following describes an embodiment of the utility model based on its overall structure.

[0024] See also Figure 1-5 A packaging bag with good sealing performance includes a packaging bag main body 1, and a Velcro 2 is installed on the inner side wall of the packaging bag main body 1. The Velcro 2 is sewn and connected to the inner side wall of the packaging bag main body 1. The Velcro 2 is symmetrically arranged with the central axis of the packaging bag main body 1 as the center. Through the Velcro 2, the inner side wall of the opening of the packaging bag main body 1 is bonded to prevent foreign matter from entering from the opening of the packaging bag main body 1, causing contamination of food placed inside the packaging bag main body 1, and increasing the safety of items stored inside the packaging bag main body 1.

[0025] See also Figure 1-5 , a packaging bag with good sealing performance, a protective strip 3 is installed at the bottom of the packaging bag main body 1, the protective strip 3 is sewn and connected to the bottom of the packaging bag main body 1, and the protective strips 3 are arranged at equal intervals with the central axis of the packaging bag main body 1 as the center. Through the set protective strips 3, due to the large storage space inside the packaging bag main body 1, when there are too many items stored in the packaging bag main body 1 and the weight is too large, the pressure on the bottom of the packaging bag main body 1 increases relatively, and long-term use will cause the bottom of the packaging bag main body 1 to be damaged, thereby causing the items stored in the packaging bag main body 1 to leak out, and the setting of the protective strip 3 can transfer part of the pressure to the side wall of the packaging bag main body 1 to prevent the bottom of the packaging bag main body 1 from being damaged due to excessive pressure.

[0026] See also Figure 1-5, a packaging bag with good sealing performance, the side wall of the packaging bag body 1 is installed with a protective sleeve 4, the inner wall of the protective sleeve 4 is installed with a sealing mechanism 5, the sealing mechanism 5 includes a pull rope 501, a limiting ring 502, a sealing sleeve 503, a limiting rod 504, a single-sided magnetic sheet 505 and a positioning sleeve 506, the inner wall of the protective sleeve 4 is installed with a pull rope 501, the outer wall of the pull rope 501 is installed with a limiting ring 502, the outer wall of the pull rope 501 is installed with a sealing sleeve 503, the outer wall of the pull rope 501 is installed with a limiting rod 504, the outer wall of the limiting rod 504 is installed with a single-sided magnetic sheet 505, the outer wall of the limiting rod 504 is installed with a positioning sleeve 506, the diameter of the limiting ring 502 is larger than the diameter of the protective sleeve 4, the sealing sleeve 50 3 is plugged into the protective sleeve 4, the pulling rope 501 is movably connected to the protective sleeve 4, the limiting rod 504 is slidably connected to the positioning sleeve 506, and through the provided sealing mechanism 5, when the items in the packaging bag main body 1 are stored, by pulling the pulling rope 501, the limiting rod 504 is driven to shrink the side wall of the packaging bag main body 1, and the single-sided magnetic sheet 505 is used to adsorb and fix it, so that the inner wall of the packaging bag main body 1 fits tightly. At this time, by pulling the pulling rope 501, the sealing sleeve 503 is inserted into the protective sleeve 4 to seal the packaging bag main body 1, so as to prevent dust from entering the interior of the packaging bag main body 1 from the inner wall of the protective sleeve 4, and the cooperation of the pulling rope 501 and the limiting rod 504 makes the sealing of the packaging bag main body 1 more convenient.

[0027] Working principle: When in use, first move the device to the desired position, then place items inside the packaging bag body 1, and then pull the pull rope 501 to drive the limit rod 504 to shrink the side wall of the packaging bag body 1, and fix it by adsorption through the single-sided magnetic sheet 505, so that the inner wall of the packaging bag body 1 fits tightly. At this time, by pulling the pull rope 501, the sealing sleeve 503 is inserted into the protective sleeve 4 to seal the packaging bag body 1, preventing dust from entering the packaging bag body 1 from the inner wall of the protective sleeve 4, and the pull rope 501 and the limit rod 504 are used together to make the sealing of the packaging bag body 1 more convenient, and then the Velcro is 2 is bonded to make the opening of the packaging bag body 1 fit, so as to prevent foreign matter from entering through the opening of the packaging bag body 1. Finally, when there are too many items stored in the packaging bag body 1 and the weight is too large, the pressure on the bottom of the packaging bag body 1 increases relatively. Long-term use may cause the bottom of the packaging bag body 1 to be damaged, thereby causing the items stored in the packaging bag body 1 to leak out. The setting of the protective strip 3 can transfer part of the pressure to the side wall of the packaging bag body 1, so as to prevent the bottom of the packaging bag body 1 from being damaged due to excessive pressure. In this way, the use process of the device is completed. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0028] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A packaging bag with good sealing performance, comprising a packaging bag body (1), characterized in that: The inner side wall of the packaging bag body (1) is provided with a Velcro (2); A protective strip (3) is installed at the bottom of the packaging bag body (1); The side wall of the packaging bag body (1) is installed with a protective sleeve (4), the inner wall of the protective sleeve (4) is installed with a sealing mechanism (5), the sealing mechanism (5) comprises a pull rope (501), a limiting ring (502), a sealing sleeve (503), a limiting rod (504), a single-sided magnetic sheet (505) and a positioning sleeve (506), the inner wall of the protective sleeve (4) is installed with a pull rope (501), the outer wall of the pull rope (501) is installed with a limiting ring (502), the outer wall of the pull rope (501) is installed with a sealing sleeve (503), the outer wall of the pull rope (501) is installed with a limiting rod (504), the outer wall of the limiting rod (504) is installed with a single-sided magnetic sheet (505), and the outer wall of the limiting rod (504) is installed with a positioning sleeve (506).

2. A packaging bag with good sealing performance according to claim 1, characterized in that: The Velcro (2) is sewn to the inner wall of the packaging bag body (1), and the Velcro (2) is symmetrically arranged with the central axis of the packaging bag body (1) as the center.

3. A packaging bag with good sealing performance according to claim 1, characterized in that: The protection strips (3) are sewn to the bottom of the packaging bag body (1), and the protection strips (3) are arranged at equal intervals with the central axis of the packaging bag body (1) as the center.

4. A packaging bag with good sealing performance according to claim 1, characterized in that: The diameter of the limiting ring (502) is greater than the diameter of the protective sleeve (4), and the sealing sleeve (503) is plugged into the protective sleeve (4).

5. A packaging bag with good sealing performance according to claim 1, characterized in that: The pulling rope (501) is movably connected to the protective sleeve (4), and the limiting rod (504) is slidably connected to the positioning sleeve (506).

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