PP plastic packaging box
By designing a box, lid, and snap-fit structure within the PP plastic packaging box, the problem of collapse and deformation of fluid food packaging bags was solved, achieving stable storage and heat preservation of the food bags and improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-29
- Publication Date
- 2026-04-17
AI Technical Summary
When storing liquid food, PP plastic packaging boxes are prone to collapse and deformation, causing the liquid food to flow and drip, affecting the user experience.
A PP plastic packaging box was designed, comprising a placement box, a cover, an extrusion strip, and a buckle structure. By attaching a food bag with a rope knot to the outer wall of the chopsticks and securing the cover with the extrusion strip and buckle, the food bag is prevented from collapsing. Meanwhile, an insulation layer and rollers are provided on the inner wall to reduce friction damage.
It effectively prevents food bags from collapsing and deforming inside the packaging box, maintains the stability of liquid food, and retains temperature through the insulation layer, reducing friction damage and improving the user experience.
Smart Images
Figure CN224131782U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging boxes, specifically a PP plastic packaging box. Background Technology
[0002] PP plastic packaging boxes, also known as polypropylene plastic packaging boxes, are packaging containers made of polypropylene resin as the main raw material through molding processes such as injection molding and vacuum forming. Polypropylene is a semi-crystalline thermoplastic with characteristics such as being non-toxic, odorless, chemically stable, and having good heat resistance.
[0003] In the food packaging industry, PP plastic packaging boxes are highly favored for their excellent performance. They are generally composed of two parts: a box body and a lid. The box body and the lid are tightly connected by a snap-fit structure. This connection method is convenient to operate, easy to open and close, and can effectively ensure the airtightness of the packaging. In the catering packaging field, PP plastic packaging boxes are widely used. People often use them as bowls to place bags containing liquid food inside the boxes to meet the diverse catering needs such as takeout and packaging.
[0004] However, in actual use, because the knotted ends of disposable packaging bags are difficult to seal completely, gaps are prone to appear. In addition, the packaging bags themselves are relatively soft and are prone to collapse and deformation during placement. When packaging bags containing liquid food are stored inside PP plastic packaging boxes, the liquid can easily flow out through the gaps at the top of the packaging bag, causing the liquid food to flow around inside the packaging box. Moreover, when the user opens the packaging box, the liquid food adhering to the inner wall of the lid will drip onto the table due to gravity, which not only affects the cleanliness of the dining environment but also brings a poor user experience. Utility Model Content
[0005] Therefore, the purpose of this utility model is to provide a PP plastic packaging box to solve the technical problem that packaging bags containing liquid food are prone to collapse and deformation when stored inside the PP plastic packaging box.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a PP plastic packaging box, comprising a packaging box, a placement box fixed to the inner wall of the packaging box, a notch at the top of the placement box, chopsticks placed inside the placement box, a food bag fitted over the outer wall of the chopsticks, the food bag containing liquid food, a cover plate installed on the top of the packaging box, a compression strip fixed to the inner wall of the cover plate, first snap-fit plates fixed to both sides of the packaging box, and second snap-fit plates movably installed at both ends of the cover plate.
[0007] By adopting the above technical solution, the problem of packaging bags containing liquid food easily collapsing and deforming when stored inside PP plastic packaging boxes is solved. The food bag's knot is attached to the outer wall of a set of chopsticks. The food bag is then placed inside the packaging box, and the set of chopsticks is stored in the storage box. The cover is then fixed to the top of the packaging box by the snaps between the first and second snap plates. The compression strip inside the cover pushes the set of chopsticks towards the bottom of the inner wall of the storage box, so that the set of chopsticks lifts the food bag upwards through the food bag's knot attached to its outer wall. This prevents the food bag from collapsing and deforming during storage inside the packaging box.
[0008] The present invention is further configured such that a first insulation layer is provided inside the packaging box, and a second insulation layer is installed on the inner wall of the cover plate, wherein both the first insulation layer and the second insulation layer are made of polyurethane foam.
[0009] Preferably, the first and second insulation layers made of polyurethane foam can block heat transfer, allowing the packaging box and lid to keep the liquid food in the food bag placed inside the packaging box warm.
[0010] The present invention is further configured such that both the first buckle plate and the second buckle plate are L-shaped, and the end of the second buckle plate is elastic.
[0011] Preferably, the cover is connected by a snap-fit between the first snap-fit plate and the second snap-fit plate, so that the cover is firmly covering the top of the packaging box.
[0012] The present invention is further configured such that two sets of rollers are movably mounted on the top of the notch, and the rollers are arranged on the corners on both sides of the notch.
[0013] Preferably, the rollers on both sides of the notch can reduce frictional damage between the food bag and the notch, thereby preventing the food bag from breaking.
[0014] The present invention is further configured such that the inner wall of the placement box is arc-shaped, and the length of the placement box is greater than the length of the chopsticks.
[0015] Preferably, when the extrusion strip presses the chopsticks downwards, the chopsticks slide down along the arc-shaped inner wall of the placement box, and the length of the placement box is greater than the length of the chopsticks, so that people can easily take the chopsticks out of the placement box.
[0016] The present invention is further configured such that the height of the extrusion strip is greater than the height of the notch, and the corners of the extrusion strip are arc-shaped.
[0017] Preferably, when the cover is on top of the packaging box, the extrusion strip will press the chopsticks downward, causing the chopsticks to pull on the food bag placed inside the packaging box.
[0018] The present invention is further configured such that the inner wall of the cover plate is provided with an extrusion block, and the length of the extrusion block is equal to the height of the notch.
[0019] Preferably, when the cover plate is installed and fixed, the extrusion block presses the food bag at the top of the notch against the top wall of the notch, so that the extrusion block can share the pulling force of the food bag on the chopsticks through the extrusion contact between the extrusion block and the notch, thereby reducing the pulling force of the food bag on the chopsticks.
[0020] The present invention is further configured such that the top of the notch has multiple sets of grooves, and the end of the extrusion block is equipped with multiple sets of protrusions.
[0021] Preferably, when the extrusion block extrudes the food bag, the extrusion block extrudes the food bag into the groove through multiple sets of protrusions, thereby increasing the contact area between the food bag and the extrusion block and the notch, and increasing the friction between the food bag and the top wall of the notch.
[0022] The present invention is further configured such that the protrusion is made of silicone material, and the diameter of the protrusion is smaller than the diameter of the groove.
[0023] Preferably, the silicone protrusions can squeeze a portion of the food bag into the grooves.
[0024] In summary, the present invention has the following main advantages:
[0025] This invention solves the problem of food bags containing liquids easily collapsing and deforming when stored inside a PP plastic packaging box by setting up a packaging box, a cover, a compression strip, a placement box, and a notch. The food bag's knot is looped around the outer wall of a set of chopsticks. The food bag is then placed inside the packaging box, and the chopsticks are placed in the placement box. The cover is then fixed to the top of the packaging box using the snaps between the first and second snap plates. The compression strip inside the cover pushes the chopsticks towards the bottom of the placement box, allowing the food bag to be lifted upwards by the knot on its outer wall. This prevents the food bag from collapsing and deforming during storage inside the packaging box.
[0026] This invention, by setting a notch, rollers, and extrusion blocks, allows the food bag to be placed inside the packaging box. The knotted middle part of the food bag is then hung in the notch at the top of the box. As the extrusion strip presses down on the chopsticks, the chopsticks pull on the knotted end of the food bag, causing one end of the food bag to slide on the notch at the top of the box. The rollers on both sides of the notch reduce friction damage between the food bag and the notch, thus preventing the food bag from breaking. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the overall device of this utility model;
[0028] Figure 2 This is a structural diagram of the internal structure of the packaging box of this utility model;
[0029] Figure 3 This is a structural diagram of the inner wall of the cover plate of this utility model;
[0030] Figure 4 This is a schematic diagram of the food bag storage according to the present invention;
[0031] Figure 5 This is a schematic diagram of the cover plate extrusion of this utility model;
[0032] Figure 6 For the present utility model Figure 5 Enlarged view of Figure A;
[0033] Figure 7 This is a schematic diagram of the support plate installation of this utility model;
[0034] Figure 8 This is a structural diagram of the card slot of this utility model.
[0035] Explanation of reference numerals in the attached figures:
[0036] 1. Packaging box; 101. First snap-fit plate; 102. First insulation layer; 2. Cover plate; 201. Second snap-fit plate; 202. Second insulation layer; 203. Extrusion strip; 204. Extrusion block; 205. Protrusion; 3. Placement box; 301. Notch; 302. Roller; 303. Groove; 4. Food bag; 5. Chopsticks; 6. Support plate; 601. Slot. Detailed Implementation
[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0038] The embodiments of this utility model will be described below based on its overall structure.
[0039] First embodiment:
[0040] Please see Figure 1 — Figure 6 The package includes a packaging box 1, with a placement box 3 fixed to the inner wall of the packaging box 1. The top of the placement box 3 has a notch 301. Chopsticks 5 are placed inside the placement box 3, and a food bag 4 containing liquid food is fitted onto the outer wall of the chopsticks 5. A cover plate 2 is installed on the top of the packaging box 1, and a compression strip 203 is fixed to the inner wall of the cover plate 2. First snap-fit plates 101 are fixed to both sides of the packaging box 1, and second snap-fit plates 201 are movably installed at both ends of the cover plate 2. This design solves the problem that packaging bags containing liquid food are prone to collapse and deformation when stored inside a PP plastic packaging box, thus preventing the food bag 4 from collapsing and deforming. A knot is attached to the outer wall of a set of chopsticks 5. Then, the food bag 4 is placed inside the packaging box 1, and the set of chopsticks 5 is stored in the placement box 3. The cover plate 2 is then fixed by the buckle between the first buckle plate 101 and the second buckle plate 201, so that the cover plate 2 is fixedly installed on the top of the packaging box 1. The compression strip 203 on the inside of the cover plate 2 pushes the set of chopsticks 5 towards the bottom of the inner wall of the placement box 3, so that the set of chopsticks 5 lifts the food bag 4 upward through the knot attached to its outer wall, so that the food bag 4 will not collapse or deform during the process of being stored inside the packaging box 1.
[0041] For details regarding the above embodiments, please refer to [link / reference]. Figure 2 and Figure 3 The packaging box 1 has a first insulation layer 102 inside, and the inner wall of the cover plate 2 has a second insulation layer 202. Both the first insulation layer 102 and the second insulation layer 202 are made of polyurethane foam. The first insulation layer 102 and the second insulation layer 202 made of polyurethane foam can block heat transfer, so that the packaging box 1 and the cover plate 2 can keep the liquid food in the food bag placed inside the packaging box 1 warm.
[0042] For details regarding the above embodiments, please refer to [link / reference]. Figure 2 and Figure 3 Both the first buckle plate 101 and the second buckle plate 201 are L-shaped, and the end of the second buckle plate 201 is elastic. The cover plate 2 is connected by the buckle between the first buckle plate 101 and the second buckle plate 201, so that the cover plate 2 is firmly covering the top of the packaging box 1.
[0043] For details regarding the above embodiments, please refer to [link / reference]. Figure 2 Two sets of rollers 302 are movably installed on the top of the notch 301, and the rollers 302 are set on the corners on both sides of the notch 301. The rollers 302 set on both sides of the notch 301 can reduce friction damage between the food bag 4 and the notch 301, thereby preventing the food bag 4 from being damaged.
[0044] For details regarding the above embodiments, please refer to [link / reference]. Figure 4 The inner wall of the placement box 3 is arc-shaped, and the length of the placement box 3 is greater than the length of the chopsticks 5. When the squeezing strip 203 squeezes the chopsticks 5 downward, the chopsticks 5 slide down along the arc-shaped inner wall of the placement box 3. Since the length of the placement box 3 is greater than the length of the chopsticks 5, people can easily take the chopsticks 5 out of the placement box 3.
[0045] For details regarding the above embodiments, please refer to [link / reference]. Figure 5 The height of the extrusion strip 203 is greater than the height of the notch 301, and the edges and corners of the extrusion strip 203 are arc-shaped. When the cover plate 2 covers the top of the packaging box 1, the extrusion strip 203 will press down on the chopsticks 5, causing the chopsticks 5 to pull the food bag 4 placed inside the packaging box 1.
[0046] For details regarding the above embodiments, please refer to [link / reference]. Figure 5 The inner wall of the cover plate 2 is provided with a squeezing block 204, and the length of the squeezing block 204 is equal to the height of the notch 301. When the cover plate 2 is installed and fixed, the squeezing block 204 squeezes the food bag 4 at the top of the notch 301 to adhere to the top wall of the notch 301. Through the squeezing contact between the squeezing block 204 and the notch 301, the squeezing block 204 can share the pulling force of the food bag 4 on the chopsticks 5, thereby reducing the pulling force of the food bag 4 on the chopsticks 5.
[0047] For details regarding the above embodiments, please refer to [link / reference]. Figure 6 The top of the notch 301 has multiple sets of grooves 303, and the end of the extrusion block 204 is equipped with multiple sets of protrusions 205. When the extrusion block 204 extrudes the food bag 4, the extrusion block 204 extrudes the food bag 4 into the grooves 303 through the multiple sets of protrusions 205, thereby increasing the contact area between the food bag 4 and the extrusion block 204 and the notch 301, and increasing the friction between the food bag 4 and the top wall of the notch 301.
[0048] For details regarding the above embodiments, please refer to [link / reference]. Figure 6 The protrusion 205 is made of silicone, and the diameter of the protrusion 205 is smaller than the diameter of the groove 303. The silicone protrusion 205 can squeeze a part of the food bag 4 into the groove 303.
[0049] Second embodiment:
[0050] Please see Figure 7 and Figure 8Two sets of support plates 6 are installed on one side of the inner wall of the packaging box 1, and the support plates 6 are set in an L-shape. Two sets of slots 601 are opened on one side of the placement box 3, and the length of the slots 601 is greater than the length of the support plates 6, so that the support plates 6 can be inserted into the slots 601, thereby facilitating the installation and disassembly of the placement box 3 according to the needs.
[0051] In practical operation, this invention works as follows: First, the knotted rope of the food bag 4 is looped onto the outer wall of a set of chopsticks 5. Then, the food bag 4 is placed inside the packaging box 1, and the set of chopsticks 5 is stored in the placement box 3. The middle part of the knotted food bag 4 is hung in the notch 301 at the top of the placement box 3. Then, the cover plate 2 is placed on top of the packaging box 1 and fixed by the snaps between the first snap plate 101 and the second snap plate 201, so that the cover plate 2 is fixedly installed on the top of the packaging box 1. When the cover plate 2 is on top of the packaging box 1, the compression strip 2 inside the cover plate 2... 03. Push a set of chopsticks 5 towards the bottom of the inner wall of the box 3, so that the set of chopsticks 5 lifts the food bag 4 upward through the knot of the food bag 4 attached to its outer wall, so that the food bag 4 will not collapse or deform during the process of being stored inside the packaging box 1. In addition, the packaging box 1 and the cover plate 2 are respectively provided with a first insulation layer 102 and a second insulation layer 202. Since the first insulation layer 102 and the second insulation layer 202 are both made of polyurethane foam, the packaging box 1 and the cover plate 2 can keep the liquid food in the food bag placed inside the packaging box 1 warm.
[0052] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A PP plastic packaging box comprising a packaging box (1), characterized in that: The inner wall of the packaging box (1) is fixed with a placement box (3), the top of the placement box (3) is provided with a notch (301), chopsticks (5) are placed inside the placement box (3), a food bag (4) is fitted on the outer wall of the chopsticks (5), and the food bag (4) contains liquid food. The top of the packaging box (1) is installed with a cover plate (2), the inner wall of the cover plate (2) is fixed with a compression strip (203), the two sides of the packaging box (1) are fixed with a first buckle plate (101), and the two ends of the cover plate (2) are movably installed with a second buckle plate (201).
2. The PP plastic packaging box according to claim 1, characterized in that: The packaging box (1) has a first insulation layer (102) inside, and the inner wall of the cover plate (2) has a second insulation layer (202). Both the first insulation layer (102) and the second insulation layer (202) are made of polyurethane foam.
3. The PP plastic packaging box according to claim 1, characterized in that: Both the first buckle plate (101) and the second buckle plate (201) are L-shaped, and the end of the second buckle plate (201) is elastic.
4. The PP plastic packaging box according to claim 1, characterized in that: Two sets of rollers (302) are movably mounted on the top of the notch (301), and the rollers (302) are set on the corners on both sides of the notch (301).
5. The PP plastic packaging box according to claim 1, characterized in that: The inner wall of the placement box (3) is arc-shaped, and the length of the placement box (3) is greater than the length of the chopsticks (5).
6. The PP plastic packaging box according to claim 1, characterized in that: The height of the extrusion strip (203) is greater than the height of the notch (301), and the corners of the extrusion strip (203) are arc-shaped.
7. The PP plastic packaging box according to claim 1, characterized in that: The inner wall of the cover plate (2) is provided with an extrusion block (204), and the length of the extrusion block (204) is equal to the height of the notch (301).
8. The PP plastic packaging box according to claim 7, characterized in that: The top of the notch (301) has multiple sets of grooves (303), and the end of the extrusion block (204) is fitted with multiple sets of protrusions (205).
9. The PP plastic packaging box according to claim 8, characterized in that: The protrusion (205) is made of silicone, and the diameter of the protrusion (205) is smaller than the diameter of the groove (303).
10. A PP plastic packaging box according to claim 1, characterized in that: The inner wall of the packaging box (1) is fixed with two sets of support plates (6), and the side of the placement box (3) is provided with two sets of slots (601).