Locking mechanism for lining of draw-bar box
By incorporating horizontal grooves and locking fasteners on the inner wall of the suitcase, the problems of cumbersome lining installation and inability to replace it are solved, enabling convenient lining installation and removal, meeting diverse user needs, and reducing processing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG MEITU COMPOSITE MATERIALS CO LTD
- Filing Date
- 2025-03-04
- Publication Date
- 2026-05-19
AI Technical Summary
Existing suitcase liners are cumbersome to install, cannot be replaced or disassembled, and cannot meet the diverse needs of users.
A locking mechanism for the inner lining of a trolley case is designed. By setting a transverse groove on the inner side wall of the case, the support component can be detachably installed in the groove and fixed by the movable locking of the fastener, so as to realize the convenient installation and removal of the inner lining component.
It enables convenient installation and removal of the lining, meets diverse user needs, and reduces processing costs.
Smart Images

Figure CN224250908U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of trolley cases, and in particular to a trolley case lining locking mechanism. Background Technology
[0002] A rolling suitcase is a type of luggage equipped with a pull handle and wheels. It is widely used due to its convenience. Rolling suitcases are further categorized by the pull handle: single-tube and double-tube handles are available. The handle tubes also vary in shape, being either square or round, to facilitate dragging and significantly reduce the burden of walking. Rolling suitcases can be carried by hand or pulled. While the wheels of most rolling suitcases are located at the bottom, modern designs have created a new type of rolling suitcase with a cylindrical shape and wheels entirely encased on the outside. This roller design allows the suitcase to better adapt to different terrains; for example, it can be easily pulled up and down stairs.
[0003] To enhance the user experience, rolling suitcases often incorporate internal linings to divide the space. Currently, these linings are typically attached to the inner walls of the suitcase using adhesive or sewing. This method is not only cumbersome to install but also prevents the lining from being replaced or removed. Furthermore, it fails to meet the diverse needs of users when packing different items, and the lining cannot be replaced or washed. Therefore, it is necessary to further improve the existing lining installation structure. Utility Model Content
[0004] In view of this, the present invention addresses the deficiencies of the existing technology, and its main purpose is to provide a locking mechanism for the inner lining of a suitcase, which can effectively solve the problems of cumbersome installation process, inability to replace and disassemble the inner lining, and inability to meet user needs in the existing suitcase inner lining.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A locking mechanism for a trolley case lining includes a case body, a lining assembly, and a locking fastener. The inner sidewall of the case body is integrally recessed with a laterally extending groove. The lining assembly includes a lining body and a support member. The support member is fixed to the outside of the lining body and engages with the groove. The support member is detachably and movably installed in the groove. The locking fastener is movably mounted on the case body. The outer end of the locking fastener has a locking portion. As the locking fastener moves, the locking portion blocks the opening of the groove and locks the support member in place within the groove.
[0007] As a preferred embodiment, the inner sidewall of the housing is recessed inward and has a horizontally extending mounting groove. The mounting groove is located beside the groove and is on the same plane as the groove. The groove and the mounting groove are separated by a protrusion. The locking element is disposed in the mounting groove, and the locking element has a recessed relief groove that cooperates with the protrusion.
[0008] As a preferred embodiment, the housing includes a first body and a second body that cooperate with each other. The first body and the second body are arranged vertically. The end face of the first body facing the second body is integrally recessed inward and has an assembly groove. The end face of the second body facing the first body is integrally protruded outward and has an assembly part that cooperates with the assembly groove.
[0009] As a preferred option, both the first body and the second body are provided with grooves, and both the first body and the second body are provided with corresponding lining components and fasteners.
[0010] As a preferred option, the support is a steel wire, and the outer periphery of the steel wire is covered by the outer side of the inner lining body to fix the steel wire to the inner lining body.
[0011] As a preferred option, the locking elements are multiple units arranged at intervals along the extension direction of the support member.
[0012] As a preferred option, the locking element is provided with a rotating shaft that passes through the housing and is rotatably connected to the housing.
[0013] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:
[0014] The inner wall of the box has an integrally recessed, laterally extending groove. A support member is fixed to the outer side of the liner and engages with the groove. The support member is detachably and movable within the groove, allowing the liner to be installed with the box through the support of the support member, making the installation process more convenient. The locking part, as the locking member moves, blocks the opening of the groove and locks the support member in the groove, making the fixing of the liner assembly more convenient. At the same time, the liner assembly can also be easily disassembled. This not only meets the user's needs for storing different items, but also facilitates the cleaning process of the liner. The locking structure is also simpler, reducing the overall processing cost.
[0015] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of a preferred embodiment of the present utility model;
[0017] Figure 2 This is a three-dimensional structural schematic diagram of another preferred embodiment of the present utility model;
[0018] Figure 3 yes Figure 2 Enlarged diagram of point A in the middle.
[0019] Explanation of reference numerals in the attached diagram:
[0020] 10. Box body 101. Groove
[0021] 102. Mounting slot; 103. Assembly slot
[0022] 11. Projection 12. First body
[0023] 13. Second body 14. Assembly section
[0024] 20. Lining assembly; 21. Lining body
[0025] 22. Support component; 30. Locking fastener.
[0026] 301, clearance groove; 31, locking part
[0027] 32. Rotation axis. Detailed Implementation
[0028] Please refer to Figures 1 to 3 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including a housing 10, an inner lining assembly 20, and a locking fastener 30.
[0029] The inner sidewall of the housing 10 is integrally recessed with a laterally extending groove 101. In this embodiment, the inner sidewall of the housing 10 is also recessed with a laterally extending mounting groove 102. The mounting groove 102 is located beside the groove 101 and is on the same plane as the groove 101. The groove 101 and the mounting groove 102 are separated by a protrusion 11. The housing 10 includes a first body 12 and a second body 13 that cooperate with each other. The first body 12 and the second body 13 are arranged vertically. The end face of the first body 12 facing the second body 13 is integrally recessed with an assembly groove 103. The end face of the second body 13 facing the first body 12 is integrally protruded with an assembly part 14 that cooperates with the assembly groove 103. Through the cooperation of the assembly groove 103 and the assembly part 14, the structural stability of the first body 12 and the second body 13 after assembly is better, preventing misalignment. Both the first body 12 and the second body 13 have grooves 101, and both the first body 12 and the second body 13 are respectively provided with inner lining components 20 and fasteners 30. In other embodiments, the grooves 101 on the first body 12 and the second body 13 can also be multiple grooves arranged vertically at intervals, and correspondingly, multiple inner lining components 20 and fasteners 30 can be provided vertically at intervals to further meet more user needs.
[0030] The inner lining assembly 20 includes an inner lining body 21 and a support member 22. The support member 22 is fixed to the outside of the inner lining body 21 and cooperates with the groove 101. The support member 22 is detachably and movably installed in the groove 101. In this embodiment, the support member 22 is a steel wire. The outer side of the inner lining body 21 covers the outer periphery of the steel wire 22, thereby fixing the steel wire 22 to the inner lining body 21. Correspondingly, the inner lining body 12 can also be other rigid materials that can play a supporting role, and it itself needs to have a certain structural strength.
[0031] The locking element 30 is movably mounted on the housing 10. The outer end of the locking element 30 has a locking portion 31. As the locking element 30 moves, the locking portion 31 blocks the opening of the groove 101 and locks the support member 22 into the groove 101, thus completing the assembly and disassembly process of the inner lining assembly 20. When locked, the support member 22 abuts against the inner wall of the locking portion 31. In this embodiment, the locking element 30 is disposed in the mounting groove 102. The locking portion 31 has a recessed relief groove 301 that mates with the protrusion 11. The mounting groove 102 prevents the locking element 30 from protruding excessively from the inner wall of the housing 10, resulting in better integrity of the inner wall of the housing 10. Multiple locking elements 30 are spaced apart along the extension direction of the support member 22. The arrangement of multiple locking elements 30 ensures a more stable locking structure for the support member 22, preventing the support member 22 from falling out of the groove 101 and ensuring the strength of the overall structure. The locking element 30 is provided with a rotating shaft 32, which passes through the housing 10 and is rotatably connected to the housing 10. This rotational locking method makes the locking structure and process more convenient, thereby effectively reducing the overall processing cost.
[0032] The installation process of this embodiment is described in detail below:
[0033] During installation, first rotate the locking member 30 so that the locking part 31 disengages from the groove 101, then insert the support member 22 into the groove 101; finally, rotate the locking member 30 so that the locking part 31 on each locking member 30 rotates to block the opening of the groove 101, thereby locking the support member 22 in the groove 101, thus completing the installation process of the inner liner assembly 20; during disassembly, simply rotate the locking member 30 so that the locking part 31 of each locking member 30 disengages from the groove 101, and finally remove the support member 22 from the groove 101.
[0034] The key design feature of this invention is that a horizontally extending groove is integrally recessed into the inner wall of the box body. A support member is fixed to the outer side of the liner and engages with the groove. The support member is detachably and movablely installed in the groove, allowing the liner to be installed with the box body through the support of the support member, making the installation process more convenient. Furthermore, the locking part blocks the opening of the groove as the locking member rotates, locking and fixing the support member in the groove, making the fixing process of the liner assembly more convenient. At the same time, the disassembly process of the liner assembly can also be easily completed. This not only meets the user's needs for storing different items, but also facilitates the cleaning process of the liner. The locking structure is also simpler, reducing the overall processing cost.
[0035] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.
Claims
1. A locking mechanism for the inner lining of a trolley case, characterized in that: The device includes a housing, an inner lining assembly, and a locking fastener. The inner wall of the housing has an integrally recessed, laterally extending groove. The inner lining assembly includes an inner lining body and a support member. The support member is fixed to the outside of the inner lining body and engages with the groove, and is detachably and movably installed within the groove. The locking fastener is movably mounted on the housing, and its outer end has a locking portion that, as the fastener moves, blocks the opening of the groove and locks the support member in place. The inner wall of the housing has a recessed, laterally extending mounting groove located beside the groove and on the same plane as the groove. The groove and the mounting groove are separated by a protrusion. The locking fastener is located in the mounting groove, and the locking portion has a recessed clearance groove that engages with the protrusion.
2. The locking mechanism for the inner lining of the suitcase according to claim 1, characterized in that: The housing includes a first body and a second body that cooperate with each other. The first body and the second body are arranged vertically. The end face of the first body facing the second body is integrally recessed inward and has an assembly groove. The end face of the second body facing the first body is integrally protruded outward and has an assembly part that cooperates with the assembly groove.
3. The locking mechanism for the inner lining of the suitcase according to claim 2, characterized in that: Both the first body and the second body have grooves, and both the first body and the second body are respectively provided with inner lining components and fasteners.
4. The locking mechanism for the inner lining of the suitcase according to claim 1, characterized in that: The support is a steel wire, and the outer periphery of the steel wire is covered by the outer side of the inner lining body to fix the steel wire to the inner lining body.
5. The locking mechanism for the inner lining of the suitcase according to claim 1, characterized in that: The locking components are multiple components arranged at intervals along the extension direction of the support component.
6. The locking mechanism for the inner lining of the suitcase according to claim 1, characterized in that: The locking element is provided with a rotating shaft, which passes through the box and is rotatably connected to the box.