Luggage case with integrated frame structure
By using a one-piece injection-molded suitcase design, combined with a support base and splicing structure, the problem of insufficient stability and load-bearing capacity of existing suitcase structures is solved, resulting in a longer service life and waterproof effect, and enhanced practicality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN SHAMIT INTELLIGENT LUGGAGE TECH CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-08
AI Technical Summary
The existing suitcase consists of two compartments connected by a zipper, which results in poor structural stability, insufficient load-bearing capacity, and easy deformation and damage.
The box adopts a one-piece injection molded structure, combined with the supporting base and the interlocking groove of the splicing plate and the splicing block, and is equipped with a load-bearing frame and side connection structure. The top of the box is designed with a handle structure and power supply module, eliminating the need for screw installation or glue gluing.
The overall load-bearing capacity and structural stability of the suitcase have been improved, the waterproof effect has been enhanced, the service life has been extended, it is easy to disassemble and replace, and the hidden handle and battery module design increases practicality.
Smart Images

Figure CN224206325U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of luggage technology, and in particular to a luggage with an integrated frame structure. Background Technology
[0002] Suitcases are an essential piece of equipment for people's daily travel, allowing them to carry all the necessary items.
[0003] Application No. 202421054273.X discloses a zippered suitcase, including a zipper mounting component. The zipper mounting component is installed on the suitcase body. The suitcase body is composed of a first box and a second box, which are connected and configured to cooperate. Zipper mounting components are provided on the interlocking surfaces of the first box and the second box.
[0004] In the above solution, the suitcase consists of two compartments connected by a zipper. This design results in relatively poor overall structural stability and insufficient load-bearing capacity. When people sit on the suitcase, the compartments are prone to deformation, leading to damage. Utility Model Content
[0005] The purpose of this invention is to provide a suitcase with an integrated frame structure to address the shortcomings of existing technologies.
[0006] To achieve the above objectives, the technical solution of this utility model is as follows:
[0007] A suitcase with an integrated frame structure includes a suitcase body and a support base installed at the bottom of the suitcase body. The suitcase body is an integral injection-molded structure with a side opening. A load-bearing frame is installed on the side opening, and a side door is hinged to the load-bearing frame. A splicing structure is provided between the suitcase body and the support base. The bottom of the suitcase body has a bottom connection port and a splicing plate formed laterally along the periphery of the bottom connection port. The top of the support base has multiple spaced splicing blocks made of plastic. The splicing blocks have a horizontally recessed groove for inserting the splicing plates.
[0008] Furthermore, the top of the interlocking blocks has a rounded corner structure.
[0009] Furthermore, a side connection structure is provided between the side opening and the supporting frame. The side connection structure includes a fitting groove formed on the inner end face of the supporting frame, which surrounds the side opening.
[0010] Furthermore, the side connection structure also includes a first connecting strip protruding from the end face of the side opening, the first connecting strip being arranged along the side opening, a second connecting strip being formed in the fitting groove, and an inner locking groove coaxially aligned with the first connecting strip being formed between the second connecting strip and the groove wall of the fitting groove.
[0011] Furthermore: A handle storage slot is provided on one side of the top of the box, and a locking seat is installed at each end of the handle storage slot. The locking seat is formed with a concave semi-circular groove.
[0012] Furthermore: The top of the box is provided with a handle structure, which includes a handle groove and a pull handle made of elastically deformable plastic material disposed in the handle groove.
[0013] Furthermore: guide seats are installed at both ends of the handle groove, the guide seats are formed with horizontally arranged sliding grooves, and sliding blocks are formed at both ends of the handle that slide in the sliding grooves.
[0014] Furthermore: the sidewall of the sliding groove is formed with a transversely arranged guide groove, and the sliding block is equipped with a guide post that slides in cooperation with the guide groove.
[0015] Furthermore: the long edge of the handle groove is formed with an outwardly concave movable groove.
[0016] Furthermore: the support base is provided with a power supply module, the power supply module includes a power supply slot, the edge of the power supply slot is hinged with a cover that can cover the power supply slot, the power supply slot is plugged into a battery rack, and the battery rack is equipped with battery cells.
[0017] The beneficial effects of this utility model are as follows: the load-bearing frame can protect and surround the side openings, making the side openings less prone to deformation. Combined with the one-piece injection-molded box body, it can be used for people to sit on. The overall load-bearing capacity of the box body is strong, providing stable support. In addition, since the bottom of the box body and the support base are connected by the interlocking groove of the splicing plate and splicing block, the installation of screws or glue is eliminated. This splicing method has a certain waterproof effect, a long service life, and is not easily damaged. Even if it is damaged, the box body can be disassembled and replaced, reinstalled, and reused repeatedly. Attached Figure Description
[0018] Figure 1 This is a structural diagram of a suitcase.
[0019] Figure 2 This is a schematic diagram of the exploded structure of the suitcase.
[0020] Figure 3 This is a schematic diagram of the exploded structure of a suitcase from another perspective.
[0021] Figure 4 This is a schematic diagram of the structure supporting the base.
[0022] Figure 5 This is a cross-sectional schematic diagram of the handle structure.
[0023] The reference numerals in the figures include:
[0024] 1-Box,
[0025] 10-Side opening, 11-Bearing frame, 12-Door groove, 13-Side door, 14-First connecting strip
[0026] 15-Matching groove, 16-Second connecting strip, 17-Inner locking groove, 18-Handle storage groove, 19-Locking seat, 191-Semi-circular groove,
[0027] 2-Support base,
[0028] 21-Splicing structure, 22-Bottom connection port, 23-Splicing plate, 24-Splicing block, 25-Snap-fit groove,
[0029] 26-Rounded corner structure, 27-Power supply slot, 28-Shielding cover, 29-Battery rack, 291-Battery cell,
[0030] 3-Handle structure,
[0031] 31-Handle groove, 32-Pull-up handle, 33-Modular groove, 34-Guide seat, 35-Sliding groove,
[0032] 36-Sliding block, 37-Guide groove, 38-Guide post. Detailed Implementation
[0033] The present invention will now be described in detail with reference to the accompanying drawings.
[0034] like Figure 1-5 As shown, a suitcase with an integrated frame structure includes a suitcase body 1 and a support base 2 installed at the bottom of the suitcase body 1. The suitcase body 1 is an integral injection molded structure. The suitcase body 1 has a side opening 10, and a load-bearing frame 11 is installed on the side opening 10. The load-bearing frame 11 has a door groove 12, and a side door 13 is hinged to the door groove 12. A splicing structure 21 is provided between the suitcase body 1 and the support base 2. The bottom of the suitcase body 1 has a bottom connection port 22 and a splicing plate 23 formed laterally around the bottom connection port 22. The top of the support base 2 has a plurality of spaced splicing blocks 24 made of plastic. The splicing blocks 24 have a horizontally recessed groove 25 for the splicing plate 23 to be inserted.
[0035] The load-bearing frame 11 can protect and surround the side opening 10, making the side opening 10 less prone to deformation. Combined with the one-piece injection-molded box body 1, it can be used for people to sit on. The overall load-bearing capacity of the box body 1 is strong, providing stable support. In addition, since the bottom of the box body 1 and the support base 2 are connected by the interlocking groove 15 of the splicing plate 23 and the splicing block 24, the installation of screws or glue is eliminated. This splicing method has a certain waterproof effect, a long service life, and is not easily damaged. Even if it is damaged, the box body 1 can be disassembled and replaced, reinstalled, and reused repeatedly.
[0036] The top of the interlocking block 24 has a rounded corner structure 26. During installation, the interlocking plate 23 first abuts against the rounded corner structure 26 on the top of the interlocking block 24, and then continues to press down. The interlocking block 24 will deform to a certain extent until the interlocking plate 23 is laterally aligned with the fitting groove 15 of the interlocking block 24. The interlocking plate 23 can then be laterally inserted into the fitting groove 15 of the interlocking block 24. At this point, the interlocking block 24 springs back, thus fixing and locking the interlocking plate 23. This eliminates the need for screw or glue installation, has a long service life, and is not easily damaged overall.
[0037] Furthermore, a side connection structure is provided between the side opening 10 and the supporting frame 11. The side connection structure includes a fitting groove 15 formed on the inner end face of the supporting frame 11, which surrounds the side opening 10. After the exposed part of the side opening 10 is surrounded by the supporting frame 11, it can form an integrated structure with the box body 1, increasing the overall load-bearing capacity and structural stability of the box body 1, making it less prone to deformation when people ride on the box body 1.
[0038] Specifically, the side connection structure also includes a first connecting strip 14 protruding from the end face of the side opening 10. The first connecting strip 14 is arranged along the side opening 10. A second connecting strip 16 is formed in the fitting groove 15. An inner locking groove 17, coaxially aligned with the first connecting strip 14, is formed between the second connecting strip 16 and the groove wall of the fitting groove 15. The inner locking groove 17 is coated with adhesive. When the load-bearing frame 11 is connected to the side opening 10 of the housing 1, the first connecting strip 14 of the side opening 10 cooperates with the inner locking groove 17 of the load-bearing frame 11, so that the inner locking groove 17 and the first connecting strip 14 are tightly fitted, realizing splicing. The connection stability between the load-bearing frame 11 and the side opening 10 of the housing 1 is further improved, and it is not easy to loosen.
[0039] A handle storage slot 18 is provided on one side of the top of the housing 1. A locking seat 19 is installed at each end of the storage slot. The locking seat 19 is formed with a concave semi-circular groove 191. When the handle is not in use, the circular groove of the locking seat can hide the handle and prevent the handle from protruding from the housing 1.
[0040] The top of the box body 1 is provided with a handle structure 3, which includes a handle groove 31 and a pull-up handle 32 made of deformable plastic material disposed in the handle groove 31. Guide seats 34 are respectively installed at both ends of the handle groove 31. The guide seats 34 are formed with transversely arranged sliding grooves 35. Sliding blocks 36 are formed at both ends of the pull-up handle 32, which slide along the sliding grooves 35. The pull-up handle 32 is made of deformable plastic material. When lifted, the sliding blocks 36 at both ends of the pull-up handle 32 move inward along the sliding grooves 35 of the guide seats 34, and the pull-up handle 32 is in a bent and arched state; conversely, when not lifted, the pull-up handle 32 will deform and spring back, and the whole is hidden in the handle groove 31. The sliding blocks 36 at both ends of the pull-up handle 32 move outward along the sliding grooves 35 of the guide seats 34.
[0041] Furthermore, the sliding groove 35 has a transversely arranged guide groove 37 formed on its side wall, and the sliding block 36 is equipped with a guide post 38 that slides in cooperation with the guide groove 37. When the sliding block 36 slides along the sliding groove 35, the guide post 38 slides along the guide groove 37 at the same time, which can prevent the sliding block 36 from falling off the sliding groove 35 and maintain the connection.
[0042] Furthermore, the long edge of the handle groove 31 is formed with an outwardly concave movable groove 33. When the handle 32 is pulled up, the movable groove 33 can form a space for the hand to hold and pull up the handle 32.
[0043] Furthermore, the support base 2 is equipped with a power supply module, which includes a power supply slot 27. A cover 28, hinged to the edge of the power supply slot 27, can shield the power supply slot 27. A battery holder 29 is inserted into the power supply slot 27, and battery cells 291 are installed in the battery holder 29. The cover 28 shields the power supply slot 27, reducing the possibility of dust entering. Additionally, when the battery cells 291 in the battery holder 29 are low on power, the battery holder 29 can be removed from the power supply slot 27 to replace or recharge the battery cells 291, achieving detachment and reconnection.
[0044] In summary, this utility model possesses the aforementioned excellent characteristics, enabling it to achieve unprecedented efficiency in use and thus become a highly practical product.
[0045] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of this utility model. The content of this specification should not be construed as a limitation of this utility model.
Claims
1. A suitcase with an integrated frame structure, comprising a suitcase body and a support base installed at the bottom of the suitcase body, characterized in that: The box body is an integral injection molded structure with a side opening. A load-bearing frame is installed on the side opening, and a side door is hinged to the load-bearing frame. A splicing structure is provided between the box body and the support base. The bottom of the box body has a bottom connection port and a splicing plate formed horizontally along the periphery of the bottom connection port. The top of the support base has multiple spaced splicing blocks made of plastic. The splicing blocks have horizontally recessed slots for inserting splicing plates.
2. A suitcase with an integrated frame structure according to claim 1, characterized in that: The top of the splicing block has a rounded corner structure.
3. A suitcase with an integrated frame structure according to claim 1, characterized in that: A side connection structure is provided between the side opening and the supporting frame. The side connection structure includes a fitting groove formed on the inner end face of the supporting frame, which surrounds the side opening.
4. A suitcase with an integrated frame structure according to claim 3, characterized in that: The side connection structure also includes a first connecting strip protruding from the end face of the side opening. The first connecting strip is arranged along the side opening. A second connecting strip is formed in the fitting groove. An inner locking groove coaxially aligned with the first connecting strip is formed between the second connecting strip and the groove wall of the fitting groove.
5. A suitcase with an integrated frame structure according to claim 1, characterized in that: A handle storage slot is provided on one side of the top of the box, and a locking seat is installed at each end of the handle storage slot. The locking seat is formed with a concave semi-circular groove.
6. A suitcase with an integrated frame structure according to claim 1, characterized in that: The top of the box is provided with a handle structure, which includes a handle groove and a pull handle made of elastically deformable plastic material disposed in the handle groove.
7. A suitcase with an integrated frame structure according to claim 6, characterized in that: Guide seats are installed at both ends of the handle groove. The guide seats are formed with horizontally arranged sliding grooves. When the handle is pulled up, sliding blocks are formed at both ends of the handle, which slide in the sliding grooves.
8. A suitcase with an integrated frame structure according to claim 7, characterized in that: The sliding groove sidewall is formed with a transversely arranged guide groove, and the sliding block is equipped with a guide post that slides in cooperation with the guide groove.
9. A suitcase with an integrated frame structure according to claim 8, characterized in that: The long edge of the handle groove is formed with an outwardly concave movable groove.
10. A suitcase with an integrated frame structure according to claim 1, characterized in that: The support base is equipped with a power supply module, which includes a power supply slot. The edge of the power supply slot is hinged with a cover that can cover the power supply slot. A battery rack is inserted into the power supply slot, and a battery cell is installed in the battery rack.
Citation Information
Patent Citations
Zipper luggage case
CN222443368U