Plastic packaging multi-layer composite structure assembly
By introducing sealing sheets and locking blocks into the multi-layer composite structure of plastic packaging, combined with barrier layer design, the problems of liquid leakage and solid damage are solved, improving the sealing effect and gas and water vapor barrier, thus meeting the hygiene requirements of food packaging.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-03-20
AI Technical Summary
Existing multi-layered composite structures in plastic packaging are prone to leakage when loading liquids, increasing the workload of workers, and traditional puncture-proof layer designs are easily damaged when loading solids.
It adopts a multi-layer composite structure component, including a contact layer, an inner protective layer, a barrier layer and an outer protective layer, combined with a sealing sheet and a locking block structure. The sealing sheet is inserted and locked by springs and pull rings to ensure the sealing effect, and the barrier layer is used to improve the gas and water vapor barrier performance.
It achieves effective sealing of liquid items, reduces the workload of staff, and improves the physical properties and gas and moisture barrier capabilities of plastic packaging, meeting the hygiene standards for food packaging.
Smart Images

Figure CN224014354U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to plastic packaging technical field especially relates to plastic packaging multilayer composite structure assembly. BACKGROUND
[0002] Plastic packaging refers to the container or material for packaging various goods made of plastic as the main raw material, has plastic bag, plastic bottle, plastic box or plastic film multiple forms, can protect the product, prevent the product from physical damage, moisture, dust pollution and microbial invasion in the process of transportation, storage and sales, ensure the integrity and quality of the product.
[0003] With the economic progress and the improvement of living standards, the demand for plastic packaging function tends to be diversified, such as food plastic packaging needs to have barrier property, strength and puncture resistance, drug packaging requires higher barrier property and sanitary safety, traditional single layer plastic is difficult to meet the demand, at this time a plastic packaging multilayer composite structure is needed.
[0004] The plastic packaging multilayer composite structure on the market at present mainly consists of printing layer, barrier layer and inner layer, which can see the commodity information on the printing layer in use, the barrier layer has good air resistance and moisture resistance, and contacts the commodity through the inner layer, the inner layer is made of non-toxic, odorless and water resistant material, but the device will be damaged by being stabbed when loading the content with stab, resulting in leakage of goods and pollution, in order to solve the above problems, the prior art often adds a stab resistant layer in the barrier layer to improve the physical properties of plastic packaging and avoid the plastic packaging being pierced by the loaded goods, but the plastic packaging often needs to load some liquid goods, at this time the structure is often inconvenient to seal, which will cause liquid leakage and increase the work burden of the staff, and cannot meet the needs of the users. UTILITY MODEL CONTENTS
[0005] In order to make up for the above shortcomings, the utility model provides a plastic packaging multilayer composite structure assembly, which aims at improving the problem that the plastic packaging structure leaks when loading liquid in the prior art.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a plastic packaging multilayer composite structure assembly, comprising a fixed plate, a plug-in slot is formed in the front side of the fixed plate, recesses are formed in the top left and right sides of the plug-in slot, a clamping block is slidably connected in each of the two recesses, springs are fixedly connected to the top left and right sides of the inner part of the two recesses, the bottom ends of the plurality of springs are fixedly connected with the corresponding clamping blocks respectively, an installation strip is arranged on the front side of the fixed plate, a connecting assembly is arranged on the top middle part of each of the two clamping blocks, a plug-in assembly is arranged on the rear side of the installation strip, the same packaging mechanism is arranged on the outer sides of the fixed plate and the installation strip, and the packaging mechanism is used for conveniently improving the physical properties of plastic packaging.
[0007] As a further description of the above technical solutions:
[0008] The packaging mechanism comprises a contact layer fixedly connected to the outer side of the fixed plate and the mounting strip, an inner protective layer fixedly connected to the outer side of the contact layer, a barrier layer fixedly connected to the outer side of the inner protective layer, an outer protective layer fixedly connected to the outer side of the barrier layer, and a printing layer fixedly connected to the outer side of the outer protective layer.
[0009] As a further description of the above technical solutions:
[0010] The connecting assembly comprises connecting rods fixedly connected to the top of the clamping blocks, and the top ends of the connecting rods are rotatably connected to the fixed plate through the pull rings.
[0011] As a further description of the above technical solutions:
[0012] The rear side of the mounting strip is fixedly connected to a sealing sheet, the left and right sides of the rear wall of the sealing sheet are fixedly connected to plug-in blocks, and the top of each plug-in block is provided with a clamping groove.
[0013] As a further description of the above technical solutions:
[0014] The inner side of the plug-in groove is matched in size with the sealing sheet, and the inner side of the recess is matched in size with the clamping block.
[0015] As a further description of the above technical solutions:
[0016] The left and right sides of the clamping block are provided with limiting grooves, the inner left and right ends of the recess are fixedly connected to limiting blocks in the middle and lower parts, and the limiting blocks are slidably connected to the limiting grooves.
[0017] As a further description of the above technical solutions:
[0018] The front side of the printing layer is provided with an identification sheet, and the left and right sides of the top of the printing layer are provided with easy creases.
[0019] As a further description of the above technical solutions:
[0020] The top of the printing layer is fixedly connected to a handle, and the outer side of the handle is fixedly connected to a protective sleeve.
[0021] The utility model has the advantages of the following beneficial effects:
[0022] 1. The utility model discloses a sealing piece and plug -in block are driven to insert into the plug -in slot, and the plug -in block inserts and will push the clamping block and move upwards, and the clamping block moves upwards and will compress the spring, and when the plug -in block is inserted in place, the spring will push the clamping block and move downwards, thereby can be clamped with the card slot, can carry out the sealing work to the plastic package, reduces the work burden of staff, can satisfy the demand of the user.
[0023] 2. The utility model discloses a contact layer directly contacts food, meets the sanitary standard of food package, and the inner protective layer and the outer protective layer can protect the plastic package from being pierced from the inside or the outside respectively, the barrier layer is used to improve the barrier to gas and water vapor, can improve the physical performance of the plastic package, and the practicability of the device is improved. DRAWINGS
[0024] Figure 1 It is the perspective drawing of the plastic package multilayer composite structure assembly of the utility model;
[0025] Figure 2 It is the structure schematic diagram of the packaging mechanism of the plastic package multilayer composite structure assembly of the utility model;
[0026] Figure 3 It is the partial structure section view of the plastic package multilayer composite structure assembly of the utility model;
[0027] Figure 4 It is the fixed plate structure section view of the plastic package multilayer composite structure assembly of the utility model;
[0028] Figure 5 It is the partial structure split drawing of the plastic package multilayer composite structure assembly of the utility model.
[0029] Legend:
[0030] 1, fixed plate; 2, packaging mechanism; 201, contact layer; 202, inner protective layer; 203, barrier layer; 204, outer protective layer; 205, printing layer; 3, plug -in slot; 4, recess; 5, clamping block; 6, spring; 7, installation strip; 8, sealing piece; 9, plug -in block; 10, card slot; 11, connecting rod; 12, pull ring; 13, limit slot; 14, limit block; 15, identification piece; 16, easy fold mark; 17, carry handle; 18, sheath. DETAILED DESCRIPTION
[0031] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.
[0032] With reference to Figure 3 , Figure 4 and Figure 5 , the present application provides an embodiment: a plastic packaging multilayer composite structure assembly, comprising a fixed plate 1, the front side of the fixed plate 1 is provided with a plug-in slot 3, the top left and right sides of the plug-in slot 3 are provided with grooves 4, the interiors of the two grooves 4 are slidably connected with clamping blocks 5, the clamping blocks 5 can slide in the grooves 4, the top left and right sides of the interiors of the two grooves 4 are fixedly connected with springs 6, the bottoms of the plurality of springs 6 are fixedly connected with corresponding clamping blocks 5 respectively, the springs 6 can push the clamping blocks 5 to move, the front side of the fixed plate 1 is provided with a mounting strip 7, the top middle parts of the two clamping blocks 5 are provided with connecting assemblies, the rear side of the mounting strip 7 is provided with a plug-in assembly, the outer sides of the fixed plate 1 and the mounting strip 7 are provided with the same packaging mechanism 2, the packaging mechanism 2 is used for conveniently improving the physical performance of the plastic packaging, the connecting assembly comprises connecting rods 11, the two connecting rods 11 are fixedly connected at the tops of the clamping blocks 5 respectively, the tops of the two connecting rods 11 are all penetrated through the fixed plate 1 and are rotatably connected with pull rings 12, the pull rings 12 can drive the clamping blocks 5 to move through the connecting rods 11, the rear side of the mounting strip 7 is fixedly connected with a sealing sheet 8, the sealing sheet 8 can improve the sealing performance, the rear walls left and right sides of the sealing sheet 8 are fixedly connected with plug-in blocks 9, the tops of the two plug-in blocks 9 are all provided with clamping grooves 10, the clamping grooves 10 can be clamped with the clamping blocks 5 to seal the plastic packaging;
[0033] Specifically, when the plastic packaging needs to be sealed, the mounting strip 7 is pressed backward, the mounting strip 7 will drive the sealing sheet 8 to be inserted into the plug-in slot 3, at the same time, the plug-in blocks 9 will also be inserted into the plug-in slot 3, with the movement of the plug-in blocks 9, the clamping blocks 5 will be pushed to move upward, in the process of moving upward, the clamping blocks 5 will compress the springs 6, once the plug-in blocks 9 are completely inserted into place, the springs 6 will release the stored energy, push the clamping blocks 5 to move downward, in this way, the clamping blocks 5 can be tightly clamped with the clamping grooves 10, so that the plastic packaging can be effectively sealed, when it needs to be opened or unsealed, the pull ring 12 is pulled, the pull ring 12 drives the clamping blocks 5 to move through the connecting rods 11, so that the clamping blocks 5 are separated from the clamping grooves 10, the sealing state of the plastic packaging can be easily released, the work burden of the workers is reduced, and the needs of the users can be met.
[0034] With reference to Figure 1 and Figure 2The packaging mechanism 2 comprises a contact layer 201 fixedly connected to the outer side of the fixed plate 1 and the mounting strip 7, the contact layer 201 can be directly contacted with food, the outer side of the contact layer 201 is fixedly connected with an inner protective layer 202, the inner protective layer 202 can prevent the internal loaded articles from piercing the plastic packaging, the outer side of the inner protective layer 202 is fixedly connected with a barrier layer 203, the barrier layer 203 can prevent water vapor and air from entering the inside of the plastic packaging, the outer side of the barrier layer 203 is fixedly connected with an outer protective layer 204, the outer side of the outer protective layer 204 is fixedly connected with a printing layer 205, and the printing layer 205 is used for printing text information;
[0035] Specifically, in use, the contact layer 201 adopts food-grade polyethylene or polypropylene material and can be directly contacted with food, fully meeting the hygiene standard of food packaging, the inner protective layer 202 and the outer protective layer 204 are made of materials with excellent flexibility, impact resistance and puncture resistance, which can effectively protect the plastic packaging and prevent it from being pierced from the inside or outside, the barrier layer 203 is made of barrier material or aluminum-plated film, which can significantly improve the barrier performance of the plastic packaging to gas and water vapor, thereby enhancing the physical properties of the plastic packaging, the printing layer 205 is used for printing the trademark, pattern and text information of the product, providing a good visual display effect for the product, increasing the attractiveness of the product and improving the practicability of the device.
[0036] With reference to Figure 3 , Figure 4 and Figure 5 , the inner side of the insertion slot 3 is matched in size with the size of the sealing sheet 8, so that the sealing sheet 8 can close the insertion slot 3, the inner side of the groove 4 is matched in size with the size of the clamping block 5, so that the clamping block 5 cannot shake inside the groove 4, the left and right sides of the clamping block 5 are provided with limiting grooves 13, and the inner side of the groove 4 is fixedly connected with limiting blocks 14 at the lower part of the left and right ends, the limiting blocks 14 are slidingly connected with the limiting grooves 13, and the limiting blocks 14 can limit the movement of the clamping block 5.
[0037] Specifically, the inner side of the insertion slot 3 is matched in size with the size of the sealing sheet 8, so that the sealing sheet 8 can tightly close the insertion slot 3 without gaps, the inner side of the groove 4 is matched in size with the size of the clamping block 5, so that the clamping block 5 cannot shake inside the groove 4, the device can be tightly sealed, and the limiting blocks 14 can limit the movement of the clamping block 5, so that the clamping block 5 cannot move excessively.
[0038] With reference to Figure 1 and Figure 2The front side of the printing layer 205 is provided with an identification sheet 15, the left and right sides of the printing layer 205 are provided with easy folding marks 16 at the top, the easy folding marks 16 enable the staff to conveniently fold the plastic package, the top of the printing layer 205 is fixedly connected with a handle 17 at the front and rear sides, the outer side of the handle 17 is fixedly connected with a sheath 18, and the handle 17 can conveniently move the plastic package by the staff;
[0039] Specifically, the identification sheet 15 can be used to identify the information of the articles in the device, the easy folding marks 16 can conveniently seal the plastic package by the staff, the handle 17 can conveniently move the plastic package by the staff, and the sheath 18 enables the staff to more comfortably hold the handle 17.
[0040] Working principle: when it is necessary to seal the plastic package, the mounting strip 7 is pressed backward, the mounting strip 7 drives the sealing sheet 8 to be inserted into the insertion slot 3, the insertion block 9 is inserted into the insertion slot 3, and the insertion block 9 moves to push the clamping block 5 to move upward, the clamping block 5 moves upward to compress the spring 6, and the spring 6 pushes the clamping block 5 to move downward after the insertion block 9 is inserted in place, so as to be clamped with the clamping groove 10, and the sealing of the plastic package can be performed, and when it is necessary to release the sealing, the pull ring 12 is pulled to drive the clamping block 5 to move through the connecting rod 11, so that the sealing of the plastic package can be released;
[0041] In addition, when the device is used, the contact layer 201 uses food-grade polyethylene or polypropylene material and can be directly contacted with food, so as to meet the sanitary standard of food packaging, the inner protective layer 202 and the outer protective layer 204 are made of materials with good flexibility, impact resistance and puncture resistance, so as to respectively protect the plastic package from being pierced from the inside or the outside, the barrier layer 203 is made of barrier material or aluminized film, so as to improve the barrier to gas and water vapor and improve the physical properties of the plastic package, and the printing layer 205 is used to print the trademarks, patterns and text information of products, so as to provide good visual display effect for the products.
[0042] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A multi-layer composite structure component for plastic packaging, including a fixing plate (1), characterized in that: The front side of the fixing plate (1) is provided with a plug-in groove (3), and the top left and right sides of the plug-in groove (3) are provided with grooves (4). The inside of the two grooves (4) are slidably connected with a locking block (5). The top left and right sides of the inside of the two grooves (4) are fixedly connected with springs (6). The bottom ends of the multiple springs (6) are respectively fixedly connected to the corresponding locking blocks (5). The front side of the fixing plate (1) is provided with an installation strip (7). The top center of the two locking blocks (5) is provided with a connecting component. The rear side of the installation strip (7) is provided with a plug-in component. The outside of the fixing plate (1) and the installation strip (7) is provided with the same packaging mechanism (2). The packaging mechanism (2) is used to facilitate the improvement of the physical properties of plastic packaging.
2. The multi-layer composite structure component for plastic packaging according to claim 1, characterized in that: The packaging mechanism (2) includes a contact layer (201) which is fixedly connected to the outside of the fixing plate (1) and the mounting strip (7). An inner protective layer (202) is fixedly connected to the outside of the contact layer (201). A barrier layer (203) is fixedly connected to the outside of the inner protective layer (202). An outer protective layer (204) is fixedly connected to the outside of the barrier layer (203). A printing layer (205) is fixedly connected to the outside of the outer protective layer (204).
3. The multi-layer composite structure component for plastic packaging according to claim 1, characterized in that: The connecting assembly includes connecting rods (11), two connecting rods (11) are fixedly connected to the top of the locking block (5), and the top ends of the two connecting rods (11) pass through the fixing plate (1) and are rotatably connected to a pull ring (12).
4. The multi-layer composite structure component for plastic packaging according to claim 1, characterized in that: A sealing sheet (8) is fixedly connected to the rear side of the mounting strip (7), and plug-in blocks (9) are fixedly connected to the left and right sides of the rear wall of the sealing sheet (8). A slot (10) is opened on the top of each of the two plug-in blocks (9).
5. The multi-layer composite structure component for plastic packaging according to claim 1, characterized in that: The inner dimensions of the insertion slot (3) match the dimensions of the sealing sheet (8), and the inner dimensions of the groove (4) match the dimensions of the locking block (5).
6. The multi-layer composite structure component for plastic packaging according to claim 1, characterized in that: The card block (5) has a limiting groove (13) on both the left and right sides. The lower middle part of the left and right ends of the groove (4) is fixedly connected to a limiting block (14). The limiting block (14) is slidably connected to the limiting groove (13).
7. The multi-layer composite structure component for plastic packaging according to claim 2, characterized in that: A label (15) is provided on the front side of the printed layer (205), and easy-to-fold creases (16) are provided on the top of both the left and right sides of the printed layer (205).
8. The multi-layer composite structure component for plastic packaging according to claim 2, characterized in that: A handle (17) is fixedly connected to the top front and back sides of the printed layer (205), and a protective sleeve (18) is fixedly connected to the outside of the handle (17).