PET packaging box structure

Abstract

The utility model relates to a PET packaging box structure which comprises a box body and a box cover, one end of the box body is connected with one end of the box cover through a foldable connecting part, the top end of the box body is outwards folded to form a circle of protruding part I, the bottom of the outer side of the protruding part I is further outwards folded to form a circle of folded edge I, and clamping parts I are arranged on the two sides of the top of the folded edge I far away from the connecting part. Limiting parts are arranged at the tops of the two sides of the front end of the clamping part I, and clamping parts II are arranged at the corners of the two sides of the top of the protruding part I; the bottom of the box cover is folded outwards to form a circle of protruding part II, a buckling groove buckled on the protruding part I is formed in the bottom end of the protruding part II, a clamping groove I for containing the clamping part II is formed in the side wall of the buckling groove, a circle of folded edge II is further arranged at the bottom of the outer side of the protruding part II, and a clamping groove II for containing the clamping part I is formed in the side wall of the folded edge II in an upwards-sunken mode. Limiting grooves for containing the limiting parts are formed in the two sides of the top of one end of the clamping groove II. The device is simple in structure and convenient to use.

Description

Technical Field

[0001] The invention relates to the field of packaging boxes, and in particular to a PET packaging box structure. Background Art

[0002] Pet lunch boxes are lunch boxes made of Pet materials. Lunch boxes belong to food packaging. Lunch boxes are plastic containers made of food-grade plastic raw materials for the convenience of taking out food.

[0003] Among them, the existing lunch boxes have the following technical problems that need to be solved when in use, such as: how to ensure the sealing performance of the box cover and the box body, minimize the outflow of liquid, and ensure the stability of the connection between the box body and the box cover to prevent the two from opening without human intervention. Summary of the invention

[0004] The purpose of the present invention is to provide a PET packaging box structure.

[0005] The technical problem of the present invention is mainly solved by the following technical solutions:

[0006] A PET packaging box structure comprises a box body and a box cover, wherein one end of the box body and the box cover are connected by a foldable connecting portion:

[0007] The top of the box body is folded outward to form a circle of protruding portion I, wherein the outer bottom of the protruding portion I is also folded outward to form a circle of folded edge I, and both sides of the top of the folded edge I away from the connection portion are provided with a clamping portion I connected to the protruding portion I, and both sides of the top of the front end of the clamping portion I are provided with a limiting portion, wherein two groups of long strip notches I are provided at the edge of the folded edge I between the two groups of clamping portions I, and the corners on both sides of the top of the protruding portion I are provided with a clamping portion II arranged on the same side as the connection portion;

[0008] The bottom of the box cover is folded outward to form a circle of protruding part II corresponding to the protruding part I, wherein the bottom end of the protruding part II is provided with a snapping groove that is buckled on the protruding part I, and the side wall of the snapping groove is provided with a card slot I for accommodating the card slot II, and the bottom of the outer side of the protruding part II is also provided with a circle of folded edge II that is in contact with the folded edge I, wherein one end of the folded edge II is provided with a notch II located between the two groups of notches I, and the side walls of the folded edge II on both sides of the notch II are recessed upward to form a card slot II for accommodating the card slot I, and the card slot II is connected with the snapping groove, and the top of one end of the card slot II is provided with limiting grooves for accommodating the limiting part on both sides.

[0009] Preferably, the length of the gap II is greater than the distance between the two groups of gaps I.

[0010] Preferably, an arc-shaped protrusion is provided at the bottom of the folded edge II outside the slot II.

[0011] Preferably, a circle of grooves is arranged around the top of the protrusion I along its length direction, wherein the grooves are filled with food-grade absorbent pads.

[0012] Preferably, both ends of the connection portion are integrally formed with the folded edge I and the folded edge II respectively.

[0013] The beneficial effects of the present invention are as follows: when the present invention is used, the box cover is buckled with the box body, at which time the box cover drives the buckling groove on the protruding part II to buckle on the protruding part I, and drives the snapping part II to snap into the corresponding snapping groove I, and when the snapping part I is snapped into the corresponding snapping groove II, it also drives the limiting part to snap into the limiting groove, thereby playing a locking and fixing role on the four groups of vertex areas between the box body and the box cover, preventing the box body and the box cover from opening without human intervention, so as to improve the sealing performance, and a "J"-shaped gap located above the connection between the box body and the box cover is formed between the protruding part I and the buckling groove, thereby forming a height difference, reducing the probability of liquid flowing out from between the box body and the box cover through the above-mentioned "J"-shaped gap, and further improving the sealing performance of waterproof seepage through the water-absorbing pad strip;

[0014] When opening the box body and the box cover, one only needs to pinch the folded edge I through the notch II with one hand and pinch the folded edge II through the notch I with the other hand, and apply force in the upward and downward directions at the same time, so that the buckle groove can be easily pulled out from the protruding part I, and then the box body and the box cover can be opened. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 is a top view of the present invention;

[0017] Figure 3 is a top view of the present invention after opening;

[0018] Figure 4 It is a cross-sectional view between the engaging portion I and the engaging slot II in the present invention;

[0019] Figure 5 yes Figure 3 Cross-sectional view at point A.

[0020] In the figure: 1, box body, 2, box cover, 3, connecting part, 4, protruding part I, 5, folded edge I, 6, engaging part I, 7, limiting part, 8, notch I, 9, engaging part II, 10, protruding part III, 11, buckling groove, 12, engaging groove I, 13, folded edge II, 14, notch II, 15, engaging groove II, 16, limiting groove, 17, protrusion, 18, water-absorbing pad. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0022] A PET packaging box structure comprises a box body 1 and a box cover 2, wherein one end of the box body 1 and the box cover 2 are connected by a foldable connecting portion 3:

[0023] The top of the box body 1 is folded outward to form a circle of protruding portion I4, wherein the outer bottom of the protruding portion I4 is also folded outward to form a circle of folded edge I5, and both sides of the top of the folded edge I5 away from the connection portion 3 are provided with a clamping portion I6 connected to the protruding portion I4, and both sides of the top of the front end of the clamping portion I6 are provided with a limiting portion 7, wherein two groups of long strip notches I8 are provided at the edge of the folded edge I5 between the two groups of clamping portions I6, and the corners on both sides of the top of the protruding portion I4 are provided with a clamping portion II9 arranged on the same side as the connection portion 3;

[0024] The bottom of the box cover 2 is folded outward to form a circle of protruding part II10 corresponding to the protruding part I4, wherein the bottom end of the protruding part II10 is provided with a snapping groove 11 that is buckled on the protruding part I4, and the side wall of the snapping groove 11 is provided with a card slot I12 for accommodating the card slot II9, and the bottom of the outer side of the protruding part II10 is also provided with a circle of folded edges II13 that are in contact with the folded edges I5, wherein one end of the folded edge II13 is provided with a notch II14 located between the two groups of notches I8, and the side walls of the folded edges II13 on both sides of the notch II14 are recessed upward to form card slots II15 for accommodating the card slot I6, and the card slot II15 is connected to the snapping groove 11, and the top of one end of the card slot II15 is provided with limiting grooves 16 for accommodating the limiting part 7 on both sides.

[0025] like Figure 2 As shown, the length of the notch II14 is greater than the distance between the two groups of notches I8.

[0026] like Figure 3 As shown, an arc-shaped protrusion 17 is provided at the bottom of the folded edge II13 outside the slot II12.

[0027] like Figure 3 As shown, a circle of grooves is arranged around the top of the protrusion 14 along its length direction, wherein the grooves are filled with food-grade water-absorbing pads 18. When the buckling groove 11 is buckled on the protrusion 14, if there is liquid in the box body 1 that leaks out through the gap between it and the box cover 2, it will penetrate into the buckling groove 11 and contact with the water-absorbing pads 18, and then absorb it, preventing the liquid from leaking out to the outside of the box body 1, thereby reducing the probability of liquid leakage.

[0028] In this embodiment, the two ends of the connection portion 3 are integrally formed with the folded edge I5 and the folded edge II13 respectively.

[0029] The method of using the present invention is as follows: when in use, the box cover 2 is buckled with the box body 1, at which time the box cover 2 drives the buckling groove 11 on the protruding part II10 to buckle on the protruding part I4, and drives the snapping part II9 to snap into the corresponding snapping groove I12, and when the snapping part I6 is snapped into the corresponding snapping groove II15, it will also drive the limiting part 7 to snap into the limiting groove 16, thereby playing a locking and fixing role on the four groups of vertex areas between the box body 1 and the box cover 2, preventing the box body 1 and the box cover 2 from opening without human intervention, so as to improve the sealing performance, and a "J"-shaped gap located above the connection between the box body 1 and the box cover 2 is formed between the protruding part I4 and the buckling groove 11, thereby forming a height difference, reducing the probability of liquid flowing out from between the box body 1 and the box cover 2 through the above-mentioned "J"-shaped gap, and further improving its sealing performance against water seepage through the water-absorbing pad strip 18;

[0030] When opening the box body 1 and the box cover 2, one only needs to pinch the folded edge I5 through the notch II14 with one hand and pinch the folded edge II13 through the notch I8 with the other hand, and apply force in the upward and downward directions at the same time, so that the buckling groove 11 can be easily pulled out from the protruding part I4, and then the box body 1 and the box cover 2 can be opened.

[0031] The present invention is described in detail above, but the contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of application of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A PET packaging box structure, comprising a box body and a box cover, wherein one end of the box body and the box cover are connected by a foldable connecting portion, characterized in that: The top of the box body is folded outward to form a circle of protruding portion I, wherein the outer bottom of the protruding portion I is also folded outward to form a circle of folded edge I, and both sides of the top of the folded edge I away from the connection portion are provided with a clamping portion I connected to the protruding portion I, and both sides of the top of the front end of the clamping portion I are provided with a limiting portion, wherein two groups of long strip notches I are provided at the edge of the folded edge I between the two groups of clamping portions I, and the corners on both sides of the top of the protruding portion I are provided with a clamping portion II arranged on the same side as the connection portion; The bottom of the box cover is folded outward to form a circle of protruding part II corresponding to the protruding part I, wherein the bottom end of the protruding part II is provided with a snapping groove that is buckled on the protruding part I, and the side wall of the snapping groove is provided with a card slot I for accommodating the card slot II, and the bottom of the outer side of the protruding part II is also provided with a circle of folded edge II that is in contact with the folded edge I, wherein one end of the folded edge II is provided with a notch II located between the two groups of notches I, and the side walls of the folded edge II on both sides of the notch II are recessed upward to form a card slot II for accommodating the card slot I, and the card slot II is connected with the snapping groove, and the top of one end of the card slot II is provided with limiting grooves for accommodating the limiting part on both sides.

2. A PET packaging box structure according to claim 1, characterized in that: The length of the gap II is greater than the distance between the two groups of gaps I.

3. A PET packaging box structure according to claim 1, characterized in that: An arc-shaped protrusion is arranged at the bottom of the folded edge II outside the slot II.

4. A PET packaging box structure according to claim 1, characterized in that: The top of the protrusion I is surrounded by a circle of grooves along its length direction, wherein the grooves are filled with food-grade water-absorbing pads.

5. A PET packaging box structure according to claim 1, characterized in that: The two ends of the connection portion are respectively formed integrally with the folded edge I and the folded edge II.

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