Clamping structure and packaging box

Abstract

The clamping structure comprises a first component (10) and a second component (20), a clamping groove (12) is formed in a body (11) of the first component (10), a clamping protrusion (22) is formed on the second component (20), the clamping structure further comprises a limiting part, when the clamping protrusion (22) of the second component (20) is inserted into the clamping groove (12) of the first component (12), the limiting part forms resistance to insertion, and when the clamping protrusion (22) of the second component (20) is inserted into the clamping groove (12) of the first component (12), the clamping protrusion (22) of the second component (20) is clamped in the clamping groove (12) of the first component (12). Therefore, the first component (10) and the second component (20) are tightly combined. A pressed portion (14) is formed on the first component (10), a press-fit portion (24) is formed on the second component (20), and after the clamping protrusion (22) of the second component (20) is inserted into the clamping groove (12) of the first component (10), the press-fit portion (24) of the second component (20) is connected to the pressed portion (14) of the first component (10) in a pressed mode, so that the pressed portion (14) deforms, and tight combination is formed between the first component (10) and the second component (20) which are clamped. According to the clamping structure, after the clamping protrusion of the second component is inserted into the clamping groove of the first component, the clamping structure is formed in assembly of the box body sheet, the box body structure can be fastened and formed in buckling of the box body and the cover body, and good sealing can be achieved.

Description

Technical Field

[0001] This invention belongs to the field of product packaging, and specifically relates to a snap-fit ​​structure and a packaging box having the snap-fit ​​structure. Background Technology

[0002] With the development of the express delivery industry, higher requirements have been placed on the sealing and shock absorption of goods during transportation. Existing commonly used packaging boxes use foam materials, which require sealing with tape, adding an extra step in the packaging process, and the sealing effect is poor. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a snap-fit ​​structure and a packaging box having the snap-fit ​​structure.

[0004] The engaging structure includes a first component and a second component. The first component has a slot, and the second component has a protrusion. It also includes a limiting part. When the protrusion of the second component is inserted into the slot of the first component, the limiting part creates resistance to the insertion, so that the first component and the second component are tightly engaged.

[0005] The limiting part consists of a pressure-receiving part formed on the first component and a pressing part formed on the second component. After the latch of the second component is inserted into the latch of the first component, the pressing part of the second component presses against the pressure-receiving part of the first component, causing the pressure-receiving part to deform, thus forming a tight connection between the first component and the second component that are engaging.

[0006] The end of the slot is a limiting port, and one side of the limiting port serves as the pressure-receiving part; the locking protrusion and the second component body form a limiting part, and a pressing part is formed between the locking protrusion and the second component body.

[0007] The pressing portion is formed on one or both sides of the limiting portion.

[0008] The cross-section of the locking protrusion is approximately semi-circular, biased towards the limiting part, and has a beveled edge. The pressing part is integrated with the beveled edge of the locking protrusion, which facilitates the insertion of the locking protrusion.

[0009] The cross-section of the protrusion is approximately semi-circular, and its straight side is a vertical side. This vertical side is connected to one side of the limiting port in the vertical direction, and its end serves as a pressure-bearing part. The pressing part of the second component is an inclined surface formed in the limiting part. When the protrusion is inserted into the slot, the inclined surface presses against the pressing part.

[0010] The packaging box is assembled from multiple sheets. One side of one sheet is the first component, with a slot formed at the end of that side. One side of another sheet is the second component, with a protrusion formed at the end of that side.

[0011] Packaging boxes can also consist of a box body and a lid. The first component is the box body, with a slot formed at the top of the box body. The second component is the lid, with a protrusion formed on the bottom surface of the lid. The box body and the lid are sealed by the engagement of the protrusion within the slot.

[0012] In this invention, the locking structure involves the second component's protrusion inserting into the first component's slot. The pressing portion of the second component then presses against the pressure-receiving portion of the first component, causing deformation of the pressure-receiving portion. This results in a tight fit between the locking first and second components. Incorporating this locking structure into the assembly of the housing sheet ensures a secure housing structure and provides a good seal during the snap-fit ​​between the housing and the cover. Attached image description: Figure 1 : Schematic diagram of the first embodiment of the interlocking structure; Figure 2 Schematic diagram of the second embodiment of the interlocking structure; Figure 3 : Schematic diagram of the third embodiment of the interlocking structure.

[0013] Explanation of reference numerals in the attached figures: 10 - First component; 11-First body; 12-Slot; 13-Limiting port; 14-Pressure-bearing part; 20 - Second component; 21-Second body; 22-Protrusion; 23-Limiting part; 24-Pressing part. Detailed Implementation

[0014] The present invention will now be described in detail with reference to the accompanying drawings.

[0015] like Figure 1 As shown, the engaging structure of the present invention includes a first component 10 and a second component 20 for engaging. The first component has a slot 12 on its body 11, and a limiting opening 13 at one end of the slot. One side of the limiting opening 13 serves as a pressure-receiving portion 14. The second component 20 includes a protrusion 22, a limiting portion 23 between the protrusion 22 and the body 21, and a pressing portion 24 formed between the protrusion 22 and the body 21.

[0016] like Figure 1 As shown, the pressing part 23 can be formed on one side of the limiting part 23. When the second component 20 is engaged with the first component 11, the protrusion 22 of the second component 20 is inserted into the slot 12 of the first component. The limiting port 13 cooperates with the limiting part 23, and the pressing part 24 of the second component 20 will press against the pressure-receiving part 14 of the first component 10, causing the pressure-receiving part 14 to deform, thereby forming a tight connection between the first component and the second component that are engaged.

[0017] exist Figure 1 In the structure shown, the locking protrusion 22 is an approximately semi-circular structure biased towards the limiting part 23. The pressing part 24 is integrated with the straight edge of the locking protrusion 22, which facilitates the insertion of the locking protrusion.

[0018] Figure 2 Another embodiment of the engaging structure is shown, wherein one side of the slot 12 of the first component is semi-circular and the other side is straight. The straight side is vertically connected to one side of the limiting opening, and its end serves as a pressure-receiving part. The pressing part 24 of the second component 20 is an inclined surface formed in the limiting part 23. When the protrusion 12 is inserted into the slot 22, the inclined surface presses against the pressing part 24.

[0019] Figure 3 Another embodiment of the engaging structure is shown, wherein the protrusion 22 and the groove 12 are generally teardrop-shaped, and the pressing portion 24 is an inclined surface formed in the limiting portion 23.

[0020] This interlocking structure can be applied to molded packaging containers with a certain degree of elasticity, especially to EPE molded assembly boxes. One sheet serves as the first component of the box body, with a groove formed at its end. Another sheet serves as the second component, with a protrusion formed at its end. The engagement of the protrusion and the groove allows for a good fit between the sheets. It can also be applied to the snap-fit ​​between the box body and the lid. In this case, the first component 10 is the box body, with a groove 11 formed at its upper end. The second component is the lid, with a protrusion 12 formed on its lower surface. The engagement of the protrusion 12 within the groove 11 achieves a seal between the box body and the lid.

[0021] The above description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications made in accordance with the scope of the application and the description of the present invention should still fall within the scope of the present invention.

Claims

1. A locking structure comprising a first component (10) and a second component (20), wherein a locking groove (12) is formed on the body (11) of the first component (10), and a locking protrusion (22) is formed on the second component (20), characterized in that: It also includes a limiting part. When the protrusion (22) of the second component (20) is inserted into the slot (12) of the first component (12), the limiting part forms a resistance to the insertion, so that the first component (10) and the second component (20) form a tight connection.

2. The engaging structure according to claim 1, characterized in that: A pressure-receiving part (14) is formed on the first component (10), and a pressing part (24) is formed on the second component (20). After the latch (22) of the second component (20) is inserted into the latch (12) of the first component (12), the pressing part (24) of the second component (20) presses against the pressure-receiving part (14) of the first component (10), causing the pressure-receiving part (14) to deform, thereby forming a tight connection between the interlocking first component (10) and the second component (20).

3. The engaging structure according to claim 2, characterized in that: The end of the slot (12) is a limiting port (13), and one side of the limiting port (13) serves as the pressure receiving part (14); the locking protrusion (22) and the second component body (21) are a limiting part (23), and a pressing part (24) is formed between the locking protrusion (22) and the second component body (21).

4. The engaging structure according to claim 3, characterized in that, The pressing part (23) is formed on one or both sides of the limiting part (23).

5. The engaging structure according to any one of claims 1-4, characterized in that: The cross-section of the protrusion (22) is approximately semi-circular, biased towards the limiting part (23), and has a bevel. The pressing part (24) is integrated with the bevel of the protrusion (22), which facilitates the insertion of the protrusion (22).

6. The engaging structure according to any one of claims 2-5, characterized in that: The cross-section of the protrusion (22) is approximately semi-circular, and its straight side is a vertical side. The vertical side is connected to one side of the limiting port in the vertical direction, and its end is used as the pressure part (14). The pressing part (24) of the second component (20) is an inclined surface formed in the limiting part (23). When the protrusion (12) is inserted into the slot (22), the inclined surface is pressed against the pressing part (24).

7. A packaging box according to any one of claims 1-6, characterized in that, The packaging box is assembled from multiple sheets, one side of which is a first component (10) with a slot (12) formed at the end of the side, and one side of the other sheet is a second component (20) with a protrusion (22) formed at the end of the side.

8. A packaging box according to any one of claims 1-7, characterized in that, The packaging box consists of a box body and a lid. The first component (10) is the box body, with a slot (11) formed at the upper end of the box body. The second component (20) is the lid, with a protrusion (12) formed on the lower surface of the lid. The box body and the lid are sealed by the engagement of the protrusion (12) in the slot (11).

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