Reusable composite film packaging bag and sealing mechanism thereof

Abstract

The utility model discloses a reusable composite film packaging bag and a sealing mechanism thereof, and relates to the field of sealing mechanisms. The device comprises a packaging bag body, and a wear-resistant layer, an anti-corrosion layer and a waterproof layer which form the packaging bag body. According to the reusable composite film packaging bag and the sealing mechanism thereof, the zipper assembly is arranged at the bag opening of the packaging bag body, and the threaded pipe and the threaded cover are arranged at the bag opening of the packaging bag body, so that the bag opening of the packaging bag body can be sealed with different properties, and the sealing mode cannot cause damage to the bag opening of the packaging bag body; and the service life of the packaging bag body is prolonged, so that the packaging bag body is reused, and resources are effectively saved.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing mechanisms, in particular to a reusable composite film packaging bag and a sealing mechanism thereof. Background Art

[0002] The composite film packaging bag is mainly composed of a wear-resistant layer, an anti-corrosion layer, a waterproof layer and other film layers compounded by a hot pressing process, so that the overall structure of the composite film packaging bag is firm, and the composite film packaging bag is easy to be reused many times.

[0003] Traditionally, the bag opening of the composite film packaging bag is sealed by sewing rope and viscose, but this sealing method is one-time, and the bag opening of the composite film packaging bag will be damaged after the sealing structure is opened, so that when the composite film packaging bag is reused later, the sealing structure cannot be reused, which is not conducive to cost saving.

[0004] In addition, the size of the sealing opening cannot be accurately controlled. When taking out a small amount of solid objects from the composite film packaging bag, the opening is too large, which is not conducive to effective control of the removal amount. When taking out a large number of solid objects from the composite film packaging bag, the opening is too small, which is not conducive to the quick removal of the objects. For composite film packaging bags containing liquids, when the above situation occurs, part of the liquid will be directly spilled into the external environment, causing waste of the liquid. To address the above problems, we propose a reusable composite film packaging bag and its sealing mechanism. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a sealing mechanism, which solves the problem that when the composite film packaging bag is reused, the sealing structure cannot be reused, which is not conducive to cost saving.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a reusable composite film packaging bag and a sealing mechanism thereof, comprising:

[0007] A first sealing unit, comprising a zipper track and a zipper head connected to the zipper track;

[0008] The second sealing unit comprises a connecting seat, a threaded pipe fixedly connected to the top end surface of the connecting seat, and a threaded cover threadedly connected to the outer wall of the threaded pipe and used for sealing the pipe opening of the threaded pipe.

[0009] Preferably, a locking unit is provided between the first sealing unit and the second sealing unit, and the locking unit is used to lock the position of the zipper head relative to the connecting seat.

[0010] Preferably, the locking unit comprises:

[0011] A limiting plate, which is fixedly connected to the top end surface of the connecting seat;

[0012] A clamping block, which is arranged on the bottom end surface of the limiting plate;

[0013] The card slot is arranged on the top end surface of the zipper head, and the zipper head and the connecting seat are locked by the card connection between the card block and the card slot.

[0014] Preferably, a groove is formed on the bottom end surface of the limiting plate, and the clamping block is limitedly slid inside the groove, and a spring is provided inside the groove to assist the clamping block in elastic movement.

[0015] Preferably, a connecting rod is fixedly connected to the top end surface of the clamping block, and the spring is sleeved on the outer wall of the connecting rod.

[0016] Preferably, a connecting plate is provided at one end of the two groups of connecting rods extending to the upper part of the limiting plate.

[0017] Preferably, a reusable composite film packaging bag comprises a packaging bag body and a wear-resistant layer, an anti-corrosion layer and a waterproof layer constituting the packaging bag body, and the sealing mechanism is installed at the top opening of the packaging bag body.

[0018] The utility model discloses a reusable composite film packaging bag and a sealing mechanism thereof, which have the following beneficial effects: the reusable composite film packaging bag and the sealing mechanism thereof, by arranging a zipper assembly at the bag opening of the packaging bag body and a threaded tube and a threaded cover at the bag opening of the packaging bag body, can perform sealing of different natures on the bag opening of the packaging bag body, and the sealing method will not cause damage to the bag opening of the packaging bag body, thereby extending the service life of the packaging bag body, so that the packaging bag body can be reused, and resources are effectively saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the zipper track and zipper head structure of the utility model;

[0022] Figure 3 This is a plan view of the main structure of the packaging bag of the utility model;

[0023] Figure 4This is a schematic diagram of the main structure of the packaging bag of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the connecting seat, threaded pipe and limiting plate of the utility model;

[0025] Figure 6 This is a cross-sectional view of the internal structure of the limit plate of the utility model;

[0026] Figure 7 This is a schematic diagram of the clamping block and spring structure of the utility model.

[0027] In the figure, 1, packaging bag body; 101, wear-resistant layer; 102, anti-corrosion layer; 103, waterproof layer; 201, zipper track; 202, zipper head; 301, connecting seat; 302, threaded tube; 303, threaded cover; 401, limit plate; 402, groove; 403, block; 404, slot; 405, connecting rod; 406, spring; 407, connecting plate. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] The embodiment of the present application provides a sealing mechanism to solve the problem that the sealing structure cannot be reused when the composite film packaging bag is reused, which is not conducive to cost saving, and realizes lossless sealing of the bag mouth of the composite film packaging bag and controls the opening diameter at the bag mouth of the composite film packaging bag.

[0030] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] The utility model embodiment discloses a reusable composite film packaging bag and a sealing mechanism thereof.

[0032] According to the attached Figure 1-7 As shown, the packaging bag body 1 includes a wear-resistant layer 101, an anti-corrosion layer 102 and a waterproof layer 103 which constitute the packaging bag body 1. The packaging bag body 1 is composited by a hot pressing process through film layers such as the wear-resistant layer 101, the anti-corrosion layer 102 and the waterproof layer 103. The packaging bag body 1 is composed of the wear-resistant layer 101, the waterproof layer 103 and the anti-corrosion layer 102 from the outside to the inside. The packaging bag body 1 has a firm structure and is convenient for repeated use. The sealing mechanism is installed at the top opening of the packaging bag body 1.

[0033] See attached Figure 2 It can be seen that the first sealing unit and the second sealing unit are both located at the bag opening of the packaging bag body 1, and perform sealing operations on the bag opening in different ranges. The first sealing unit can seal or open a large area of ​​the bag opening of the packaging bag body 1. For example, when a large amount of objects are put into the packaging bag body 1 or taken out of the packaging bag body 1, the first sealing unit can be opened. The second sealing unit can seal or open a small area of ​​the bag opening of the packaging bag body 1. For example, when a small amount of objects are put into the packaging bag body 1 or taken out of the packaging bag body 1, the second sealing unit can be opened.

[0034] The first sealing unit includes a zipper track 201 and a zipper head 202 connected to the zipper track 201. The zipper track 201 and the zipper head 202 constitute a zipper assembly with a sealing function. The zipper track 201 is fixedly connected to the outer wall of the bag opening of the packaging bag body 1, so that the bag opening of the packaging bag body 1 can be conveniently sealed by the set zipper track 201 and the zipper head 202, and the packaging bag body 1 will not be damaged during the sealing or unsealing process, so that the packaging bag body 1 can be reused many times.

[0035] The second sealing unit includes a connecting seat 301, a threaded tube 302 fixedly connected to the top end face of the connecting seat 301, and a threaded cover 303 threadedly connected to the outer wall of the threaded tube 302 and used to close the tube mouth of the threaded tube 302. The connecting seat 301 is fixedly connected to the outer wall of the bag mouth of the packaging bag body 1, and the threaded tube 302 is connected to the inner wall of the packaging bag body 1 through the connecting seat 301.

[0036] A locking unit is provided between the first sealing unit and the second sealing unit, and the locking unit is used to lock the position of the zipper head 202 relative to the connecting seat 301, so as to prevent the zipper head 202 from losing its sealing effect on the zipper track 201 under the action of external force, causing the bag opening of the packaging bag body 1 to be in an open state, so that the packaging bag body 1 cannot stably receive objects, and the locking unit includes a limiting plate 401, which is fixedly connected to the top end face of the connecting seat 301, a clamping block 403 is provided on the bottom end face of the limiting plate 401, and a clamping groove 404 is provided on the zipper head The top end surface of 202 is locked between the zipper head 202 and the connecting seat 301 through the snap connection between the block 403 and the slot 404. A groove 402 is provided on the bottom end surface of the limiting plate 401. The block 403 slides in the groove 402. A spring 406 is provided inside the groove 402 to assist the elastic movement of the block 403. A connecting rod 405 is fixedly connected to the top end surface of the block 403. The spring 406 is sleeved on the outer wall of the connecting rod 405. A connecting plate 407 is provided at one end of the two groups of connecting rods 405 extending to the upper part of the limiting plate 401.

[0037] The reusable composite film packaging bag and its sealing mechanism, by arranging a zipper assembly at the bag opening of the packaging bag body 1 and a threaded tube 302 and a threaded cover 303 at the bag opening of the packaging bag body 1, can perform sealing of different natures on the bag opening of the packaging bag body 1, and the sealing method will not cause damage to the bag opening of the packaging bag body 1, thereby extending the service life of the packaging bag body 1, so that the packaging bag body 1 can be reused, effectively saving resources.

[0038] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A sealing mechanism, characterized in that: include, A first sealing unit, comprising a zipper track (201) and a zipper head (202) connected to the zipper track (201); The second sealing unit comprises a connecting seat (301), a threaded tube (302) fixedly connected to the top end surface of the connecting seat (301), and a threaded cover (303) threadedly connected to the outer wall of the threaded tube (302) and used to seal the tube opening of the threaded tube (302).

2. A sealing mechanism according to claim 1, characterized in that: A locking unit is provided between the first sealing unit and the second sealing unit, and the locking unit is used to lock the position of the zipper head (202) relative to the connecting seat (301).

3. A sealing mechanism according to claim 2, characterized in that: The locking unit comprises: A limiting plate (401) fixedly connected to the top end surface of the connecting seat (301); A clamping block (403) is arranged on the bottom end surface of the limiting plate (401); The card slot (404) is provided on the top end surface of the zipper head (202), and the zipper head (202) and the connecting seat (301) are locked by the card connection between the card block (403) and the card slot (404).

4. A sealing mechanism according to claim 3, characterized in that: The bottom end surface of the limiting plate (401) is provided with a groove (402), the clamping block (403) is limitedly slid inside the groove (402), and a spring (406) is provided inside the groove (402) to assist the clamping block (403) in elastic movement.

5. A sealing mechanism according to claim 4, characterized in that: The top end surface of the clamping block (403) is fixedly connected to a connecting rod (405), and the spring (406) is sleeved on the outer wall of the connecting rod (405).

6. A sealing mechanism according to claim 5, characterized in that: A connecting plate (407) is provided at one end of the two groups of connecting rods (405) extending to the upper part of the limiting plate (401).

7. A reusable composite film packaging bag, comprising the sealing mechanism according to any one of claims 1 to 6, characterized in that: It comprises a packaging bag body (1) and a wear-resistant layer (101), an anti-corrosion layer (102) and a waterproof layer (103) constituting the packaging bag body (1); the sealing mechanism is installed at the top opening of the packaging bag body (1).

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