Packaging bag with plastic-paper composite structure
By designing an L-shaped support plate structure and a layered mechanism, the problem of inflexible shape of plastic-paper composite packaging bags is solved, enabling shape transformation and functional enhancement, thereby improving the adaptability and user experience of the packaging bags.
Patent Information
- Application Number
- CN202520151241.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Existing plastic-paper composite packaging bags cannot be flexibly converted into right-angled or non-right-angled shapes according to the usage scenario, resulting in inconvenience in use.
An adjustable L-shaped support plate structure was designed, which can be unlocked and locked by pulling the limiting block and the locking post. Combined with functional designs such as layered mechanism, flexible fabric, Velcro, fluorescent strip and transparent plate, the adaptability and functionality of the packaging bag are enhanced.
It enables flexible transformation of packaging bag form, improves sealing, layering ability and security, enhances ease of use and portability, and adapts to different usage needs.
Smart Images

Figure CN223687199U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to packing bag production technical field especially, relate to a packing bag of plastic paper composite structure. BACKGROUND
[0002] The packing bag of plastic paper composite structure is a kind of multilayer material combined with plastic and paper, used to improve the functionality and environmental protection of packaging, its structure usually includes outer paper and inner plastic film, paper provides excellent printing surface and firmness, while plastic film has the characteristics of moisture-proof, oxygen barrier and tear resistance, this composite structure can effectively protect the products in the package from moisture, oxygen and light, while maintaining good appearance and hand feeling, plastic paper composite packing bag is often used for the packaging of food, medicine, cosmetic products, because they can effectively extend the shelf life of products, and reduce resource consumption, its production process can also use environmentally friendly materials and technology, further reduce environmental impact, overall, this packing bag combines practicality and sustainability, is an important development direction of modern packaging industry.
[0003] Through the retrieval, China patent publication number is CN221542545U, disclose a kind of packing bag of plastic paper composite structure, including packing bag body and cap, packing bag body one end has filling port, cap one end is fixedly connected with packing bag body, cap is connected with adhesive layer on the side face close to packing bag, cap is used to paste with the outer wall of packing bag body by adhesive layer, to seal filling port;Packing bag body includes plastic layer, intermediate layer and paper layer sequentially arranged from outer layer to inner layer, plastic layer and intermediate layer are mutually adhered and connected, intermediate layer and paper layer are mutually adhered and connected;Intermediate layer includes honeycomb net and multiple water-absorbing resin particles filled in honeycomb net interior, water-absorbing resin particle is used to absorb the moisture of medium located in the interior of packing bag body through paper layer, the utility model has the technical effect that can prevent water and moisture in humid environment, without affecting its strength and not easy to deform, but in actual use process, the packing bag cannot be converted on the form of right-angle packing bag and no right-angle packing bag according to the scene used, to bring inconvenience. UTILITY MODEL CONTENT
[0004] In order to make up for the above shortcomings, the utility model provides a kind of packing bag of plastic paper composite structure, aims at improving the problem that right-angle packing bag and no right-angle packing bag cannot be converted on the form according to the scene used in prior art.
[0005] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of packing bag of plastic paper composite structure, including packing bag body, the top front and back side of the packing bag body is fixedly connected with handle, the bottom right side of the packing bag body is fixedly connected with L-shaped support plate one, the bottom left side of the packing bag body is fixedly connected with L-shaped support plate two, the top of the L-shaped support plate two is equipped with clamping slot, the right rear side of the L-shaped support plate one is equipped with limiting hole, the inner wall of the L-shaped support plate two is slidably connected with clamping post, the outside of the clamping post is provided with spring, the right side of the clamping post penetrates the L-shaped support plate two and is fixedly connected with limiting round block, the rear side of the L-shaped support plate one is fixedly connected with support block, the front side of the L-shaped support plate two is fixedly connected with clamping post, the clamping slot is engaged with the support block, the clamping post is engaged with the limiting hole, the inner wall of the packing bag body is provided with layered mechanism, and the layered mechanism is used to divide the internal space of the packing bag body.
[0006] Through the above technical scheme: by pulling limiting round block, thereby driving clamping post to move, at this time, clamping post and limiting hole are disengaged, then L-shaped support plate one and L-shaped support plate two are pulled to front and back side respectively so that support block and clamping slot are disengaged, so that the connection of bottom is released, at this time, only need to pull the two folded corners of packing bag bottom, so that the state of packing bag is changed from right angle state to non-right angle state, so that the state of packing bag can be changed according to the required state.
[0007] As a further description of the above technical scheme:
[0008] The layered mechanism includes a partition plate, the partition plate is fixedly connected to the inner wall of the packing bag body, a plurality of finger clasps are fixedly connected to the front side of the partition plate, a thumb clasp is fixedly connected to the front side of the inner wall of the packing bag body, the thumb clasp is engaged with the finger clasps, a U-shaped bag is fixedly connected to the rear side of the inner wall of the packing bag body, a zipper is fixedly connected to the top of the U-shaped bag, and a puller is arranged on the outer side of the zipper.
[0009] Through the above technical scheme: the partition plate can divide the packing bag into two parts, the partition plate and the front side of the packing bag are combined by the mutual engagement of the thumb clasp and the finger clasp, so as to ensure the sealing of the front side, and small items can be placed in the U-shaped bag, the top of the U-shaped bag can be opened and closed by the zipper and the puller, so as to improve the layering capacity of the packing bag.
[0010] As a further description of the above technical scheme:
[0011] The outer wall of the front handle is fixedly connected with a flexible cloth, and the front side of the flexible cloth is fixedly connected with a magic tape.
[0012] Through the technical scheme, the flexible cloth can improve the comfort of the handle, and the two handles can be connected to each other through the magic tape.
[0013] Further description of the technical scheme is as follows:
[0014] The outer wall of the packaging bag body is fixedly connected with an information plate on the right side of the front part, and a picture groove is formed on the right side of the front side of the information plate.
[0015] Through the technical scheme, the information plate is used for recording the detailed information of the product, and the picture groove is used for displaying the picture of the product.
[0016] Further description of the technical scheme is as follows:
[0017] The outer wall of the packaging bag body is fixedly connected with a fixing block on the left and right sides, and a shoulder strap is arranged on the outer side of the two fixing blocks.
[0018] Through the technical scheme, the packaging bag can be carried on the shoulder through the shoulder strap.
[0019] Further description of the technical scheme is as follows:
[0020] The left and right sides of the packaging bag body are fixedly connected with a fluorescent strip, and the outer wall of the packaging bag body is fixedly connected with a transparent plate on the bottom side of the front part.
[0021] Through the technical scheme, the fluorescent strip arranged on the packaging bag can be more easily found and identified in the night or in a dark environment, thereby improving the safety, and in addition, the user can directly observe the condition of the articles in the packaging bag through the transparent plate.
[0022] Further description of the technical scheme is as follows:
[0023] The inner wall of the packaging bag body is fixedly connected with a buffer plate on the bottom side of the front and rear parts, and a plurality of round holes are formed on the front side of the buffer plate.
[0024] Through the technical scheme, the buffer plate can effectively absorb the impact force and reduce the damage of the articles in the packaging bag during transportation.
[0025] Further description of the technical scheme is as follows:
[0026] The outer wall of the packaging bag body is formed with a groove on the front and rear sides, and the two grooves are respectively slidably connected with the L-shaped support plate one and the L-shaped support plate two.
[0027] Through the technical scheme, the L-shaped support plate one and the L-shaped support plate two can be conveniently slidably connected to the inside of the packaging bag through the grooves.
[0028] The utility model has the advantages of the following:
[0029] 1. In the utility model, the clamping column is moved by pulling the limiting round block, the clamping with the limiting hole is released, then L-shaped support plate one and L-shaped support plate two are pulled to separate the supporting block from the clamping groove, the bottom connection is disconnected, finally, two corners at the bottom of the packaging bag are pulled to change the packaging bag from the right angle state to the non-right angle state, and different use requirements can be met.
[0030] 2. In the utility model, packaging bag one is divided into two parts by the partition, is fixed through the thumb buckle and the finger buckle, the sealing property of the front side is ensured, the U-shaped bag is designed for storing small articles, the top can be opened and closed through the zipper and the puller to enhance the layered storage function of the packaging bag, and the separation capacity of the packaging bag can be improved. BRIEF DESCRIPTION OF DRAWINGS
[0031] Figure 1 A perspective view of the packaging bag with the plastic-paper composite structure is provided for the utility model;
[0032] Figure 2 A front view of the packaging bag with the plastic-paper composite structure is provided for the utility model;
[0033] Figure 3 An unfolding schematic view of the packaging bag with the plastic-paper composite structure is provided for the utility model;
[0034] Figure 4 A packaging bag body sectional view of the packaging bag with the plastic-paper composite structure is provided for the utility model;
[0035] Figure 5 An L-shaped support plate two sectional view of the packaging bag with the plastic-paper composite structure is provided for the utility model.
[0036] LEGEND:
[0037] 1, packaging bag body; 2, layered mechanism; 201, partition; 202, thumb buckle; 203, finger buckle; 204, U-shaped bag; 205, zipper; 206, puller; 3, handle; 4, L-shaped support plate one; 5, L-shaped support plate two; 6, clamping groove; 7, limiting hole; 8, clamping column; 9, spring; 10, limiting round block; 11, supporting block; 12, clamping column; 13, flexible cloth; 14, magic tape; 15, information board; 16, picture recess; 17, fixed block; 18, back strap; 19, fluorescent bar; 20, transparent plate; 21, buffer plate; 22, round hole; 23, recess. DETAILED DESCRIPTION
[0038] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0039] With reference to Figure 1 , Figure 3 and Figure 5 , the present application provides an embodiment: a packaging bag of a plastic paper composite structure, comprising a packaging bag body 1, the top of the packaging bag body 1 is fixedly connected with a handle 3 on the front and rear sides, the bottom right side of the packaging bag body 1 is fixedly connected with an L-shaped support plate one 4, the bottom left side of the packaging bag body 1 is fixedly connected with an L-shaped support plate two 5, a clamping groove 6 is formed in the top of the L-shaped support plate two 5, a limiting hole 7 is formed in the right rear side of the L-shaped support plate one 4, a clamping column 8 is slidably connected to the inner wall of the L-shaped support plate two 5, a spring 9 is arranged on the outer side of the clamping column 8, the right side of the clamping column 8 penetrates through the L-shaped support plate two 5 and is fixedly connected with a limiting circular block 10, a supporting block 11 is fixedly connected to the rear side of the L-shaped support plate one 4, a clamping column 12 is fixedly connected to the front side of the L-shaped support plate two 5, the clamping groove 6 is clamped with the supporting block 11, the clamping column 8 is clamped with the limiting hole 7, and a layered mechanism 2 is arranged on the inner wall of the packaging bag body 1, the layered mechanism 2 is used for dividing the internal space of the packaging bag body 1;
[0040] Specifically, when it is needed to change the packaging bag from a right angle state to a non-right angle state, only the limiting circular block 9 needs to be pulled to drive the clamping column 8 to move, at this time, the clamping column 8 is disengaged from the limiting hole 7, then the L-shaped support plate one 4 and the L-shaped support plate two 5 are pulled to the front and rear sides respectively to make the supporting block 11 disengage from the clamping groove 6, so as to disengage the bottom connection, at this time, only the two folded corners at the bottom of the packaging bag need to be pulled to change the packaging bag from the right angle state to the non-right angle state, so that the state of the packaging bag can be changed according to the required use state.
[0041] With reference to Figure 3 , the layered mechanism 2 comprises a partition plate 201, the partition plate 201 is fixedly connected to the inner wall bottom of the packaging bag body 1, a plurality of finger buckles 203 are fixedly connected to the front side of the partition plate 201, a thumb buckle 202 is fixedly connected to the inner wall front side of the packaging bag body 1, the thumb buckle 202 is clamped with the finger buckle 203, a U-shaped bag 204 is fixedly connected to the inner wall rear side of the packaging bag body 1, a zipper 205 is fixedly connected to the top of the U-shaped bag 204, and a puller 206 is arranged on the outer side of the zipper 205;
[0042] Specifically, the packaging bag can be divided into two parts by the partition plate 201, and the partition plate 201 and the front side of the packaging bag can be combined by the mutual clamping of the thumb buckle 202 and the finger buckle 203, so as to ensure the front side sealing, and the U-shaped bag 204 can be used to place small items, and the zipper 205 and the pull head 206 can be used to open and close the top of the U-shaped bag 204, thereby improving the layering capacity of the packaging bag.
[0043] With reference to Figure 1 , Figure 2 and Figure 3 , the outer wall of the front handle 3 is fixedly connected with a flexible cloth 13, the front side of the flexible cloth 13 is fixedly connected with a magic tape 14, the outer wall of the packaging bag body 1 is fixedly connected with an information plate 15 on the right side of the front, the front right side of the information plate 15 is provided with a picture groove 16, and the outer wall of the packaging bag body 1 is fixedly connected with a fixed block 17 on the left and right sides.
[0044] Specifically, the flexible cloth 13 can improve the comfort of the handle 3, and the magic tape 14 can be used to connect the handles 3 on both sides, the information plate 15 can be used to record the detailed information of the product, the picture groove 16 can be used to display the picture of the product, and the shoulder strap 18 can be used to carry the packaging bag diagonally.
[0045] With reference to Figure 1 , Figure 3 and Figure 4 , the left and right sides of the packaging bag body 1 are fixedly connected with a fluorescent strip 19, the bottom side of the front of the outer wall of the packaging bag body 1 is fixedly connected with a transparent plate 20, the bottom of the inner wall of the packaging bag body 1 is fixedly connected with a buffer plate 21 on the front and back sides, a plurality of round holes 22 are formed on the front side of the buffer plate 21, and recesses 23 are formed on the front and back sides of the outer wall of the packaging bag body 1. Two recesses 23 are respectively connected with the L-shaped support plate one 4 and the L-shaped support plate two 5 in a sliding manner.
[0046] Specifically, the fluorescent strip 19 provided on the packaging bag can be more easily found and identified in the night or in a relatively dark environment, thereby improving the safety, in addition, through the design of the transparent plate 20, the user can directly observe the condition of the items inside the packaging bag, which is convenient and fast for checking and managing the internal items, in order to enhance the protection capacity of the bottom of the packaging bag, the buffer plate 21 is specially designed, which can effectively absorb the impact force and reduce the damage of the internal items in the transportation process, finally, through the setting of the recess 23, the L-shaped support plate one 4 and the L-shaped support plate two 5 can be conveniently connected to the inside of the packaging bag, which not only improves the convenience of connection, but also enhances the stability and bearing capacity of the overall structure.
[0047] Working principle: before using the device, first, when the need to adjust the packaging bag from the right angle state to the non-right angle state, just pull the limit round block 9, this action will promote the card column 8 movement, resulting in the card column 8 and limit hole 7 with the card state is removed, then, pull L-shaped support plate one 4 and L-shaped support plate two 5 in the forward and backward direction, make the support block 11 and the card slot 6 with the card state is removed, so as to release the packaging bag bottom connection, at this time, just pull the packaging bag bottom two folded corner, can realize the packaging bag from the right angle state to the non-right angle state change, and then according to the actual use demand adjustment packaging bag state, when the need to restore the right angle state, just fold the packaging bag bottom, and L-shaped support plate one 4 and L-shaped support plate two 5 card, pull limit round block 10 driven card column 8 and limit hole 7 with the card, so as to restore the right angle state, and through the layering mechanism 2, the partition plate 201 can be effectively separated into two independent area, through the thumb buckle 202 and the finger-shaped buckle 203 with each other embedded, realize the partition plate 201 and the front side of the packaging bag tight combination, ensure the front side of the sealing, in addition, the U-shaped bag 204 provides the space of storing small articles, through the operation of zipper 205 and pull head 206, can conveniently open or close the opening of U-shaped bag 204, so as to enhance the separation function of the packaging bag.
[0048] Finally, it should be noted that: the above only for the preferred embodiments of the present application have, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for the person skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of the present application.
Claims
1. A packaging bag of a plastic-paper composite structure comprising a packaging bag body (1), characterized in that: The top front and rear sides of the packaging bag body (1) are fixedly connected with handles (3), the bottom right side of the packaging bag body (1) is fixedly connected with an L-shaped support plate one (4), the bottom left side of the packaging bag body (1) is fixedly connected with an L-shaped support plate two (5), the top of the L-shaped support plate two (5) is provided with a clamping groove (6), the right rear side of the L-shaped support plate one (4) is provided with a limiting hole (7), the inner wall of the L-shaped support plate two (5) is slidably connected with a clamping column (8), the outer side of the clamping column (8) is provided with a spring (9), the right side of the clamping column (8) penetrates through the L-shaped support plate two (5) and is fixedly connected with a limiting circular block (10), the rear side of the L-shaped support plate one (4) is fixedly connected with a supporting block (11), the front side of the L-shaped support plate two (5) is fixedly connected with a clamping column (12), the clamping groove (6) is clamped with the supporting block (11), the clamping column (8) is clamped with the limiting hole (7), the inner wall of the packaging bag body (1) is provided with a layered mechanism (2), and the layered mechanism (2) is used for dividing the internal space of the packaging bag body (1).
2. A plastic paper composite structure packaging bag according to claim 1, characterized by: The layered mechanism (2) comprises a partition plate (201), the partition plate (201) is fixedly connected to the inner wall bottom of the packaging bag body (1), a plurality of finger buckles (203) are fixedly connected to the front side of the partition plate (201), a thumb buckle (202) is fixedly connected to the inner wall front side of the packaging bag body (1), the thumb buckle (202) is clamped with the finger buckle (203), a U-shaped bag (204) is fixedly connected to the inner wall rear side of the packaging bag body (1), a zipper (205) is fixedly connected to the top of the U-shaped bag (204), and a puller (206) is arranged on the outer side of the zipper (205).
3. A plastic paper composite structure packaging bag according to claim 1, characterized in that: The outer wall of the front handle (3) is fixedly connected with a flexible cloth (13), and the front side of the flexible cloth (13) is fixedly connected with a magic tape (14).
4. A plastic paper composite structure packaging bag according to claim 1, characterized by: The outer wall front right side of the packaging bag body (1) is fixedly connected with an information plate (15), and the front right side of the information plate (15) is provided with a picture groove (16).
5. A plastic paper composite structure packaging bag according to claim 1, characterized by: The outer walls of the packaging bag body (1) are fixedly connected with fixing blocks (17) on the left and right sides, and the outer sides of the two fixing blocks (17) are provided with a shoulder strap (18).
6. A plastic paper composite structure packaging bag according to claim 1, characterized by: The left and right sides of the packaging bag body (1) are fixedly connected with fluorescent strips (19), and the outer wall front bottom side of the packaging bag body (1) is fixedly connected with a transparent plate (20).
7. A plastic paper composite structure packaging bag according to claim 1, characterized by: The inner wall bottom of the packaging bag body (1) is fixedly connected with buffer plates (21) on the front and rear sides, and the front side of the buffer plate (21) is provided with a plurality of round holes (22).
8. A plastic paper composite structure packaging bag according to claim 1, characterized by: The outer walls of the packaging bag body (1) are provided with grooves (23) on the front and rear sides, and the two grooves (23) are slidably connected with the L-shaped support plate one (4) and the L-shaped support plate two (5) respectively.
Citation Information
Patent Citations
Packaging bag with plastic-paper composite structure
CN221542545U