Four-side sealing zipper bag with locking function

Abstract

The utility model discloses a four -sided seal zip fastener bag with lock catch function belongs to zip fastener bag technical field, aimed at the problem that the further lock catch and the buckling connection mode stability and the poor tightness of the lack of the encapsulation bag body, including bag body and opening, the bag body upper portion is set with lock catch mechanism in the opening, is provided with zip fastener mechanism between the front piece and back piece, the utility model discloses the lock catch mechanism that sets up, when the bag body is encapsulated, can further to the stable sealing lock catch operation of bag body opening, thereby can improve the stability of bag body opening encapsulation, effectively prevent its possible that appears the mistake of opening, through the zip fastener mechanism that sets up, when the bag body is encapsulated, it can through the close buckling connection mode, and the front piece and back piece are closed encapsulation connection, thereby ensure the tightness of bag body after encapsulation, and cooperate lock catch mechanism and be convenient for the opening operation of zip fastener mechanism conveniently.

Description

Technical Field

[0001] This utility model belongs to the field of zipper bag technology, specifically relating to a four-side sealed zipper bag with a locking function. Background Technology

[0002] Zipper bags feature a reusable, resealable zipper structure, allowing for easy opening and closing. Once closed, they provide a good seal and can be used for inner and outer packaging of various small to medium-sized items. Self-sealing bags can package various snacks, tea, seafood, etc., providing moisture protection, waterproofing, insect protection, and preventing items from scattering. They are also suitable for packaging clothing and other daily necessities, offering a wide range of applications.

[0003] A prior art patent, CN220221811U, describes a zippered bag. This patent includes two bag panels, a connecting piece, a zipper body, and a snap-fit ​​structure. Each of the two bag panels has a connecting piece on its opposite surface. The zipper body is located on the connecting piece, and the zipper bodies on the two connecting pieces are symmetrically arranged about a center. Each zipper body includes a locking body and a connecting wall, with the connecting wall located at one end of the locking body. The locking bodies on the two zipper bodies can interlock, and a gap is formed between the locking body and the connecting piece. The snap-fit ​​structure has an unlocked state and a locked state that allows the end of the locking body away from the connecting wall to connect with the corresponding connecting piece. When the internal pressure of the zippered bag reaches a withstand pressure value, the snap-fit ​​structure switches from the locked state to the snap-fit ​​state. When switched to the unlocked state, the gap inside the zipper bag connects with the inside of the zipper bag; this effectively prevents the zipper bag from bursting, and the buckle structure can distribute the stress on the connecting wall, avoiding damage to the connecting wall, which can greatly improve the stability and service life of the zipper bag. However, in actual use, there are still the following shortcomings: From a practical point of view, in the process of sealing the zipper bag in this patent, it forms a seal by buckle, lacking the ability to further lock the bag body, which makes it easy to open, affecting the sealing stability. In addition, the stability and airtightness of its buckle connection method are poor, and it cannot guarantee the airtightness of the sealing connection.

[0004] Therefore, there is a need for a four-side seal zipper bag with a locking function to solve the problems of poor stability and airtightness in the existing technology due to the lack of further locking and snap-fit ​​connection methods for the sealed bag body. Utility Model Content

[0005] The purpose of this utility model is to provide a four-side sealed zipper bag with a locking function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a four-side zipper bag with a locking function, comprising a bag body and an opening, the opening being located at the top of the bag body, the bag body comprising a front piece and a back piece, the front piece and the back piece being arranged front to back, a locking mechanism being provided in the opening at the upper part of the bag body, and a zipper mechanism being provided between the front piece and the back piece.

[0007] It should be noted in the solution that the locking mechanism includes a flip piece, which is fixedly connected to the outside of the rear piece. A pull piece is fixedly connected to the other side of the flip piece. A limit strip is fixedly connected to the flip piece on the side opposite to the pull piece. The limit strip is positioned on the front piece and has a limit groove. Through openings are respectively opened on the front piece and the rear piece at the corresponding positions of the flip piece.

[0008] It is worth noting that the flip piece is configured to connect the front piece and the rear piece through a through-hole.

[0009] It should be further noted that the limiting strip is engaged within the limiting groove.

[0010] In a preferred embodiment, the zipper mechanism includes a first connecting piece, which is fixedly connected to the inner surface of the front piece. A first zipper rail is fixedly connected to the first connecting piece. A second connecting piece is fixedly connected to the inner surface of the rear piece, corresponding to the first connecting piece. A second zipper rail is fixedly connected to the second connecting piece. An air column is provided inside the second zipper rail. Extrusion pieces are fixedly connected to the upper and lower sides of the second zipper rail on the second connecting piece, respectively. An extrusion groove is formed on the side of the extrusion piece facing the first zipper rail. An extrusion strip is fixedly connected to the extrusion groove on the first zipper rail. An extrusion wall is provided on the inner side of the extrusion piece on the second zipper rail. A connecting wall is fixedly connected to the inner side of the extrusion wall on the first zipper rail. A matching connecting groove is formed on the connecting wall on the second zipper rail.

[0011] In a preferred embodiment, the first connecting piece and the second connecting piece are respectively disposed on the front piece and the rear piece below the through opening.

[0012] In a preferred embodiment, the first zipper rail has a K-shaped cross-section.

[0013] In a preferred embodiment, the second zipper rail is made of an elastic material.

[0014] Compared with the prior art, the four-side seal zipper bag with locking function provided by this utility model has at least the following beneficial effects:

[0015] (1) The locking mechanism facilitates a stable sealing and locking operation at the opening of the bag when it is sealed, thereby improving the stability of the sealing at the opening of the bag and effectively preventing accidental opening, thus improving the practicality of the device.

[0016] (2) By setting the zipper mechanism, when sealing the bag, it can seal the front and back pieces by a tight buckle connection, thereby ensuring the airtightness of the bag after sealing. In addition, the locking mechanism facilitates the convenient opening operation of the zipper mechanism, further improving the practicality of the device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the open cross-sectional structure of the bag body of this utility model.

[0020] In the diagram: 1. Bag body; 101. Front panel; 102. Back panel; 2. Opening; 3. Locking mechanism; 301. Flip panel; 302. Pull panel; 303. Limiting strip; 304. Limiting groove; 305. Through opening; 4. Zipper mechanism; 401. First connecting piece; 402. First zipper rail; 403. Second connecting piece; 404. Second zipper rail; 405. Air column; 406. Extrusion piece; 407. Extrusion groove; 408. Extrusion strip; 409. Extrusion wall; 4010. Connecting wall; 4011. Connecting groove. Detailed Implementation

[0021] The present invention will be further described below with reference to the embodiments.

[0022] Please see Figure 1-3 This utility model provides a four-side sealed zipper bag with a locking function, including a bag body 1 and an opening 2. The opening 2 is opened at the top of the bag body 1. The bag body 1 includes a front piece 101 and a back piece 102, which are arranged one in front of the other. A locking mechanism 3 is provided in the opening 2 at the upper part of the bag body 1, and a zipper mechanism 4 is provided between the front piece 101 and the back piece 102.

[0023] Further as Figure 2 and Figure 3As shown, it is worth noting that the locking mechanism 3 includes a flip piece 301, which is fixedly connected to the outside of the rear piece 102. A pull piece 302 is fixedly connected to the other side of the flip piece 301. A limit strip 303 is fixedly connected to the flip piece 301 on the side opposite to the pull piece 302. The limit strip 303 is positioned on the front piece 101 and is provided with a limit groove 304. The flip piece 301 is provided with through holes 305 on the front piece 101 and the rear piece 102 respectively. The flip piece 301 is set to pass through the front piece 101 and the rear piece 102 through the through holes 305. The limit strip 303 is engaged in the limit groove 304.

[0024] In use, the flip piece 301 is passed through the through opening 305, so that the limiting strip 303 at one end of the flip piece 301 matches the limiting groove 304. Through the snap-fit ​​limiting strip 303 and the limiting groove 304, the flip piece 301 snaps together the upper parts of the front piece 101 and the rear piece 102, thereby further protecting the opening 2 and preventing the front piece 101 and the rear piece 102 from being accidentally opened through the opening 2. This provides a certain locking capability and improves the practicality of the device. Furthermore, the pull piece 302 makes it easy to open the flip piece 301, thus facilitating the opening of the zipper mechanism 4 by pulling the flip piece 301.

[0025] As can be seen from the above working process, the locking mechanism 3 facilitates a stable sealing and locking operation at the opening 2 of the bag 1 when it is being sealed, thereby improving the stability of the sealing at the opening 2 of the bag 1, effectively preventing the possibility of accidental opening, and thus improving the practicality of the device.

[0026] Further as Figure 2 and Figure 3As shown, it is worth noting that the zipper mechanism 4 includes a first connecting piece 401, which is fixedly connected to the inner surface of the front piece 101. A first zipper rail 402 is fixedly connected to the first connecting piece 401, and the first zipper rail 402 has a K-shaped cross-section. A second connecting piece 403 is fixedly connected to the inner surface of the rear piece 102, corresponding to the first connecting piece 401. A second zipper rail 404 is fixedly connected to the second connecting piece 403, and the second zipper rail 404 is made of an elastic material. The first connecting piece 401 and the second connecting piece 403 are respectively located below the through opening 305 on the front piece 101 and the rear piece 102. An air column 405 is provided inside the zipper rail 404. Extrusion plates 406 are fixedly connected to the second connecting piece 403 on the upper and lower sides of the second zipper rail 404 respectively. An extrusion groove 407 is opened on the side of the extrusion plate 406 facing the first zipper rail 402. An extrusion strip 408 is fixedly connected to the extrusion groove 407 on the first zipper rail 402. An extrusion wall 409 is provided on the inner side of the extrusion plate 406 on the second zipper rail 404. A connecting wall 4010 is fixedly connected to the inner side of the extrusion wall 409 on the first zipper rail 402. A matching connecting groove 4011 is opened on the connecting wall 4010 on the second zipper rail 404.

[0027] In use, by aligning the first zipper rail 402 and the second zipper rail 404 and applying opposing forces to the front piece 101 and the rear piece 102 respectively, the first zipper rail 402 and the second zipper rail 404 are pressed against the first connecting piece 401 and the second connecting piece 403 respectively. At this time, the connecting wall 4010 aligns with the connecting groove 4011, causing the first zipper rail 402 and the second zipper rail 404 to engage. Furthermore, due to the air column 405, the second zipper rail 404 is compressed when engaged with the first zipper rail 402, thereby enabling the first zipper rail 402 and the second zipper rail 404 to engage. The snap-fit ​​connection between the first zipper rail 402 and the second zipper rail 404 is kept tight to improve the airtightness of the connection. During the snap-fit ​​connection process of the first zipper rail 402 and the second zipper rail 404, the extrusion strip 408 and the extrusion groove 407 are aligned so that the extrusion piece 406 is squeezed by the extrusion strip 408, thereby squeezing the extrusion wall 409. This allows the first zipper rail 402 to maintain a stable snap-fit ​​limit on the first zipper rail 402 through the extrusion wall 409, thereby further improving the stability of the snap-fit ​​connection between the first zipper rail 402 and the second zipper rail 404, thus ensuring the stability of the connection between the front piece 101 and the rear piece 102.

[0028] This solution has the following working process: When this device is used, by aligning the first zipper rail 402 and the second zipper rail 404, and applying relative forces to the front piece 101 and the rear piece 102 respectively, the first zipper rail 402 and the second zipper rail 404 are compressed onto the first connecting piece 401 and the second connecting piece 403 respectively. At this time, the connecting wall 4010 aligns with the connecting groove 4011, causing the first zipper rail 402 and the second zipper rail 404 to engage. Due to the setting of the air column 405, the second zipper rail 404 is compressed when it engages with the first zipper rail 402, thereby maintaining a tight snap-fit ​​connection between the first zipper rail 402 and the second zipper rail 404, thus improving the airtightness of the connection. During the snap-fit ​​connection of the first zipper rail 402 and the second zipper rail 404, the extrusion strip 408 and the extrusion groove 407 are aligned, causing the extrusion piece 406 to be compressed. The compression of strip 408 compresses the compression wall 409, thereby ensuring that the first zipper rail 402 is stably locked in place by the compression wall 409. This further improves the stability of the locking connection between the first zipper rail 402 and the second zipper rail 404, thus ensuring the stability of the connection between the front piece 101 and the rear piece 102. After the locking connection is established, the flip piece 301 passes through the through opening 305, so that the limiting strip 303 at one end of the flip piece 301 matches the limiting groove 304. Through the locking and limiting of the limiting strip 303 and the limiting groove 304, the flip piece 301 locks the upper parts of the front piece 101 and the rear piece 102 together. This further protects the opening 2, preventing the front piece 101 and the rear piece 102 from being accidentally opened through the opening 2, thus providing a certain locking capability and improving the practicality of the device.

[0029] In summary: The locking mechanism 3 facilitates a stable sealing and locking operation at the opening 2 of the bag 1 during sealing, thereby improving the stability of the sealing at the opening 2 of the bag 1 and effectively preventing accidental opening, thus enhancing the practicality of the device. The zipper mechanism 4, when sealing the bag 1, can tightly connect the front piece 101 and the rear piece 102 through a snap-fit ​​connection, ensuring the airtightness of the sealed bag 1. Furthermore, the locking mechanism 3 facilitates convenient opening of the zipper mechanism 4, further enhancing the practicality of the device.

Claims

1. A four-side-sealed zipper bag with a locking function, comprising a bag body (1) and an opening (2), wherein the opening (2) is located at the top of the bag body (1), characterized in that: The bag body (1) includes a front piece (101) and a back piece (102), the front piece (101) and the back piece (102) are arranged one in front of the other, a locking mechanism (3) is provided in the opening (2) at the upper part of the bag body (1), and a zipper mechanism (4) is provided between the front piece (101) and the back piece (102).

2. A four-side-seal zipper bag with a locking function according to claim 1, characterized in that: The locking mechanism (3) includes a flip piece (301), which is fixedly connected to the outside of the rear piece (102). A pull piece (302) is fixedly connected to the other side of the flip piece (301). A limit strip (303) is fixedly connected to the flip piece (301) on the side opposite to the pull piece (302). The limit strip (303) is positioned on the front piece (101) and a limit groove (304) is provided. Through openings (305) are respectively opened on the front piece (101) and the rear piece (102) at the corresponding positions of the flip piece (301).

3. A four-side-seal zipper bag with a locking function according to claim 2, characterized in that: The flip piece (301) is configured to pass through the front piece (101) and the rear piece (102) via the through hole (305).

4. A four-side-seal zipper bag with a locking function according to claim 3, characterized in that: The limiting strip (303) is engaged within the limiting groove (304).

5. A four-side-seal zipper bag with a locking function according to claim 4, characterized in that: The zipper mechanism (4) includes a first connecting piece (401), which is fixedly connected to the inner surface of the front piece (101). A first zipper rail (402) is fixedly connected to the first connecting piece (401). A second connecting piece (403) is fixedly connected to the inner surface of the rear piece (102) corresponding to the first connecting piece (401). A second zipper rail (404) is fixedly connected to the second connecting piece (403). An air column (405) is provided inside the second zipper rail (404). The upper and lower sides of the second zipper rail (404) are respectively fixed to the second connecting piece (403). An extrusion plate (406) is fixedly connected to the first zipper rail (402). An extrusion groove (407) is opened on the side of the extrusion plate (406) facing the first zipper rail (402). An extrusion strip (408) is fixedly connected to the extrusion groove (407) on the first zipper rail (402). An extrusion wall (409) is provided on the second zipper rail (404) on the inner side of the extrusion plate (406). A connecting wall (4010) is fixedly connected to the inner side of the extrusion wall (409) on the first zipper rail (402). A matching connecting groove (4011) is opened on the second zipper rail (404) on the connecting wall (4010).

6. A four-side-seal zipper bag with a locking function according to claim 5, characterized in that: The first connecting piece (401) and the second connecting piece (403) are respectively disposed on the front piece (101) and the rear piece (102) below the through opening (305).

7. A four-side-seal zipper bag with a locking function according to claim 6, characterized in that: The first zipper rail (402) has a K-shaped cross section.

8. A four-side-seal zipper bag with a locking function according to claim 7, characterized in that: The second zipper rail (404) is made of elastic material.

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