Packaging box opening sealing mechanism and beverage packaging box

Abstract

The utility model provides a packing box opening sealing mechanism which comprises a box body and a box cover, and the packing box opening sealing mechanism comprises a circle of box opening sealing groove formed in the top end of the box body, a circle of cover bottom sealing groove formed in the bottom of the box cover and a buckle plate hinged to the edge of the box cover. The bottom of the box opening sealing groove is provided with a clamping part, the buckle plate is provided with a clamping hook corresponding to the clamping part, and when the buckle plate is buckled with the clamping part through the clamping hook, the groove wall of the box opening sealing groove and the groove wall of the cover bottom sealing groove are tightly engaged together by utilizing self elasticity; the utility model further provides a beverage packaging box. The packaging box opening sealing mechanism and the beverage packaging box have the advantages of being scientific in design, capable of being repeatedly used, free of deformation and failure and free of decomposition of harmful substances.

Description

Technical Field

[0001] The utility model relates to the technical field of food packaging, in particular to a packaging box opening sealing mechanism and a beverage packaging box. Background Art

[0002] Yogurt, milk and other beverages are often packaged in boxes. In order to extend the shelf life, the sealing of the boxes must be ensured. There are two main ways to seal traditional packaging boxes. One is to bond the lid to the box mouth and seal it in a fixed way. The lid is torn off when drinking, but this sealing method is one-time and cannot be repeated; the other is to set a sealing strip at the bottom of the lid, and then buckle the lid with the edge of the box mouth, and use the pressure between the two to press the sealing strip to achieve sealing. For example, a dried fruit yogurt box disclosed in the patent with application number 202321842253.4, although this sealing method can be reused, the sealing strip is easy to deform during use, making the seal ineffective, and some inferior sealing strips may also decompose harmful substances to the human body and contaminate the beverage.

[0003] In order to solve the above problems, people have been seeking an ideal technical solution. Summary of the invention

[0004] The purpose of the utility model is to address the deficiencies of the prior art, thereby providing a packaging box opening sealing mechanism and a beverage packaging box which are scientifically designed, can be reused, will not deform and fail, and will not decompose harmful substances.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a packaging box box mouth sealing mechanism, the packaging box includes a box body and a box cover, the packaging box box mouth sealing mechanism includes a circle of box mouth sealing grooves arranged at the top of the box body, a circle of cover bottom sealing grooves arranged at the bottom of the box cover and a buckle plate hinged on the edge of the box cover, a clamping part is arranged at the bottom of the box mouth sealing groove, and the buckle plate is provided with a hook corresponding to the clamping part, when the buckle plate is buckled with the clamping part through the hook, the groove wall of the box mouth sealing groove and the groove wall of the cover bottom sealing groove are tightly bitten together by their own elasticity.

[0006] Based on the above, the groove wall of the cover bottom sealing groove is clamped on the outer side of the groove wall of the box mouth sealing groove, and the inner side of the groove wall of the cover bottom sealing groove and the outer side of the groove wall of the box mouth sealing groove are provided with mutually matching concave and convex surfaces.

[0007] Based on the above, a step is extended from the outer end of the groove bottom of the box mouth sealing groove, and in the sealed state, the bottom end of the outer groove wall of the cover bottom sealing groove is pressed on the step.

[0008] Based on the above, the clamping portion is a vertical plate arranged at the outer end of the bottom of the box opening sealing groove, and the clamping hook is provided with a shallow groove corresponding to the bottom end of the vertical plate.

[0009] The utility model also provides a beverage packaging box, comprising the packaging box opening sealing mechanism as described above.

[0010] The utility model has substantial features and progress compared to the prior art. Specifically, when the hook on the buckle plate is used to buckle the snap-fit ​​portion, the box cover is pressed against the box opening. At the same time, the groove wall of the box opening sealing groove and the groove wall of the cover bottom sealing groove are tightly engaged together by utilizing their own elasticity to achieve mechanical sealing. Compared with the traditional beverage packaging box sealing structure, the utility model has the advantages of scientific design, reusability, no deformation and failure, and no decomposition of harmful substances. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic cross-sectional structure diagram of the sealing mechanism of the box opening of the packaging box in the utility model.

[0012] Figure 2 It is a schematic diagram of the cross-sectional structure of the beverage packaging box in the utility model.

[0013] In the figure: 1. Box body; 2. Box cover; 3. Box mouth sealing groove; 4. Lid bottom sealing groove; 5. Buckle plate; 6. Hook; 7. Vertical plate; 8. Concave and convex surface; 9. Step; 61. Shallow groove. DETAILED DESCRIPTION

[0014] The technical solution of the utility model is further described in detail below through specific implementation methods. Example 1

[0015] like Figure 1 and Figure 2 As shown, a sealing mechanism for the mouth of a packaging box, the packaging box comprises a box body 1 and a box cover 2, the box mouth sealing mechanism comprises a circle of box mouth sealing grooves 3 arranged at the top of the box body 1, a circle of cover bottom sealing grooves 4 arranged at the bottom of the box cover 2, and a gusset plate 5 hinged on the edge of the box cover 2, the bottom of the box mouth sealing groove 3 is provided with a clamping part, the clamping part is specifically a vertical plate 7 arranged at the outer end of the bottom of the box mouth sealing groove 3, the gusset plate 5 is provided with a hook 6 corresponding to the clamping part, the hook 6 is provided with a shallow groove 61 corresponding to the bottom end of the vertical plate 7, through the rotation of the gusset plate 5, the shallow groove 61 on the hook 6 can be clamped at the bottom end of the vertical plate 7, so that the box cover 2 is pressed against the box mouth. At the same time, the groove wall of the box mouth sealing groove 3 and the groove wall of the cover bottom sealing groove 4 are tightly engaged together by their own elasticity to achieve mechanical sealing.

[0016] In order to further improve the sealing effect, the groove wall of the cover bottom sealing groove 4 is clamped on the outer side of the groove wall of the box mouth sealing groove 3, and the inner side of the groove wall of the cover bottom sealing groove 4 and the outer side of the groove wall of the box mouth sealing groove 3 are provided with mutually matching concave and convex surfaces 8; the outer end of the groove bottom of the box mouth sealing groove 3 extends out a step 9, and in the sealed state, the bottom end of the outer groove wall of the cover bottom sealing groove 4 is pressed on the step 9, so that the sealing surface becomes tortuous, thereby improving the sealing performance.

[0017] Working principle:

[0018] First, put the box cover 2 on the box opening. At this time, the groove wall of the cover bottom sealing groove 4 intersects with the groove wall of the box opening sealing groove 3. Then, turn the edge buckle plate 5 downward until the shallow groove 61 on the hook 6 clamps the bottom end of the vertical plate 7. The box cover 2 is pressed. At the same time, under the action of pressure, the groove wall of the cover bottom sealing groove 4 is tightly clamped with the groove wall of the box opening sealing groove 3 to achieve mechanical sealing. On the one hand, it can be reused, and on the other hand, it is not easy to fail due to deformation. Example 2

[0019] A beverage packaging box adopts the packaging box opening sealing mechanism described in Example 1.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A sealing mechanism for a packaging box, the packaging box comprising a box body and a box cover, characterized in that: The box mouth sealing mechanism of the packaging box includes a circle of box mouth sealing grooves arranged at the top of the box body, a circle of cover bottom sealing grooves arranged at the bottom of the box cover, and a buckle plate hinged on the edge of the box cover. A clamping part is arranged at the bottom of the box mouth sealing groove, and the buckle plate is provided with a hook corresponding to the clamping part. When the buckle plate is buckled with the clamping part through the hook, the groove wall of the box mouth sealing groove and the groove wall of the cover bottom sealing groove are tightly bitten together by their own elasticity.

2. The packaging box opening sealing mechanism according to claim 1, characterized in that: The groove wall of the cover bottom sealing groove is clamped on the outer side of the groove wall of the box mouth sealing groove, and the inner side of the groove wall of the cover bottom sealing groove and the outer side of the groove wall of the box mouth sealing groove are provided with mutually matching concave and convex surfaces.

3. The packaging box opening sealing mechanism according to claim 2, characterized in that: The outer end of the groove bottom of the box mouth sealing groove extends out a step, and in a sealed state, the bottom end of the outer groove wall of the cover bottom sealing groove is pressed onto the step.

4. The packaging box opening sealing mechanism according to any one of claims 1 to 3, characterized in that: The clamping part is a vertical plate arranged at the outer end of the bottom of the box opening sealing groove, and the clamping hook is provided with a shallow groove corresponding to the bottom end of the vertical plate.

5. A beverage packaging box, characterized in that: It comprises the packaging box mouth sealing mechanism as described in any one of claims 1 to 4.

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