一种包装内托的加强承接结构
The stability of the inner tray is enhanced by the four-layer coated paper stacking design and the locking structure, which solves the problem that the three-layer coated paper in the existing technology cannot cover the groove gap, thus achieving stable fixation and transportation protection of cosmetic bottles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-09-10
- Publication Date
- 2026-07-17
AI Technical Summary
The existing three-layer coated paper packaging inner tray cannot effectively cover the groove, resulting in gaps, and its strength and hardness are insufficient, making it easy to break.
The design employs a four-layer laminated paper stacking system, including a first substrate, a second substrate, a third substrate, a fourth substrate, and a small tray. The inner tray structure is formed by hot pressing, and a locking structure and reinforcing points are set around the groove to enhance the stability of the adhesive surface.
The strength and rigidity of the inner tray have been improved to prevent cosmetic bottles from shaking or loosening during transportation, ensuring the stability and aesthetics of the packaging.
Smart Images

Figure CN224511770U_ABST
Abstract
Claims
1. A reinforced support structure for a packaging inner tray, comprising a first substrate (1), a second substrate (2), a third substrate (3), and a fourth substrate (4) arranged sequentially, wherein the first substrate (1) comprises a first side plate (11) and a first body (12), the first side plate (11) being disposed around the first body (12); the second substrate (2) comprises a second side plate (21) and a second body (22), the second side plate (21) being disposed around the second body (22); the third substrate (3) comprises a third side plate (31) and a third body (32), the third side plate (31) being disposed around the third body (32); and the fourth substrate (4) comprises a fourth side plate (41) and a fourth body (42), the fourth side plate (41) being disposed around the fourth body (42), characterized in that: It also includes a small tray (5), an inner tray structure (6) and multiple slotting structures (7). The first substrate (1), the second substrate (2), the third substrate (3), the fourth substrate (4) and the small tray (5) are stacked on top of each other from top to bottom to form the inner tray structure (6). The inner tray structure (6) includes an inner tray side plate (61) and an inner tray body (62) connected to each other. The first body (12), the second body (22), the third body (32) and the fourth body (42) are stacked on top of each other from top to bottom to form the inner tray body (62). The first side plate (11), the second side plate (21), the third side plate (31) and the fourth side plate (41) are stacked on top of each other from top to bottom and bent to form the inner tray side plate (61). The inner tray body (62) is provided with multiple grooves for placing packaging bottles, and multiple slotting structures (7) are provided around each groove.
2. The reinforced receptacle structure of an in-pack bolster according to claim 1, characterized in that: It also includes multiple reinforcing points (9), and multiple reinforcing points (9) are bonded to the outer bottom of the multiple grooves.
3. The reinforced support structure of the inner packaging tray according to claim 1, characterized in that: The number of grooves is five, namely groove No. 1 (63), groove No. 2 (64), groove No. 3 (65), groove No. 4 (66), and groove No. 5 (67).
4. The reinforced receptacle structure of an in-pack bolster according to claim 1, characterized in that: Openings are provided between two adjacent first side plates (11), two adjacent second side plates (21), two adjacent third side plates (31), and two adjacent fourth side plates (41) to prevent the fourth side plate (41), two adjacent third side plates (31), two adjacent second side plates (21), or two adjacent first side plates (11) from interfering with each other after bending.
5. The reinforced receptacle structure of an in-pack bolster of claim 1, wherein: The third base plate (3) has a first disconnection structure (38) in the middle of the first groove third bending plate (33) and the second groove third bending plate (34). The fourth base plate (4) has a second disconnection structure (48) on the upper side of the first groove fourth bending plate (43) and the lower side of the second groove fourth bending plate (44).
6. The reinforced receptacle structure of an in-pack bolster according to claim 5, characterized in that: The first main body (12) is provided with a first bending plate (13) with a first groove, the second main body (22) is provided with a second bending plate (23) with a first groove, the third main body (32) is provided with a third bending plate (33) with a first groove, and the fourth main body (42) is provided with a fourth bending plate (43) with a first groove. The first bending plate (13), the second bending plate (23), the third bending plate (33), and the fourth bending plate (43) with a first groove are pressed down and bonded together to form a first groove (63).
7. The reinforced support structure of the inner packaging tray according to claim 5, characterized in that: The first main body (12) is provided with a first bending plate (14) of the second groove, the second main body (22) is provided with a second bending plate (24) of the second groove, the third main body (32) is provided with a third bending plate (34) of the second groove, and the fourth main body (42) is provided with a fourth bending plate (44) of the second groove. The first bending plate (14), the second bending plate (24), the third bending plate (34), and the fourth bending plate (44) of the second groove are pressed down and bonded together to form the second groove (64).
8. The reinforced receptacle structure of an in-pack bolster of claim 5, wherein: The first main body (12) is provided with a first bending plate (15) of the third groove, the second main body (22) is provided with a second bending plate (25) of the third groove, the third main body (32) is provided with a third bending plate (35) of the third groove, and the fourth main body (42) is provided with a through hole (45) of the third groove. The first bending plate (15), the second bending plate (25), and the third bending plate (35) of the third groove are all passed through the through hole (45) of the third groove, pressed down, and bonded to form the third groove (65).
9. The reinforced receptacle structure of an in-pack bolster of claim 5, wherein: The first main body (12) is provided with a first bending plate (16) with a fourth groove, the second main body (22) is provided with a second bending plate (26) with a fourth groove, the third main body (32) is provided with a third bending plate (36) with a fourth groove, and the fourth main body (42) is provided with a through hole (46) with a fourth groove. The first bending plate (16), the second bending plate (26), and the third bending plate (36) with a fourth groove are all passed through the through hole (46) with a fourth groove, pressed down, and bonded together to form a fourth groove (66).
10. The reinforced receptacle structure of an in-pack bolster of claim 5, wherein: The first main body (12) is provided with a first bending plate (17) with a fifth groove, the second main body (22) is provided with a second bending plate (27) with a fifth groove, the third main body (32) is provided with a third bending plate (37) with a fifth groove, and the fourth main body (42) is provided with a through hole (47) with a fifth groove. The first bending plate (17), the second bending plate (27), and the third bending plate (37) with a fifth groove are all passed through the through hole (47) with a fifth groove, pressed down, and bonded together to form a fifth groove (67).