A luggage lock set fixing mechanism
By using the snap-fit structure and spring clip design of the luggage lock assembly, the problems of time-consuming, labor-intensive, and space-consuming existing luggage lock assemblies are solved, enabling rapid nail-free installation and automated assembly line assembly, and adapting to luggage shells of different thicknesses.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU HONGYING LUGGAGE ACCESSORIES CO LTD
- Filing Date
- 2025-04-16
- Publication Date
- 2026-07-21
AI Technical Summary
The existing methods for installing bag lock assemblies are time-consuming and labor-intensive, making it impossible to automate assembly lines, and they also take up a lot of space during transportation.
It adopts a snap-fit structure of upper locking body and lower locking shell, combined with the design of snap spring and connecting plate, to achieve nail-free installation and automated assembly line assembly. The snap-fit protrusion and the beveled design of the snap-fit joint can adapt to shells of different thicknesses. The cooperation of snap hook and snap groove accelerates the assembly.
It enables rapid, nail-free installation, adapts to different thicknesses of enclosures, and maintains overall assembly during transportation, supporting automated production lines.
Smart Images

Figure CN224532435U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a bag lock assembly fixing mechanism. Background Technology
[0002] Most locks on bags are recessed and installed in grooves in the bag panels or shell. They are usually fixed by rivets or screws, which requires manual operation, is time-consuming and labor-intensive, cannot be automated, and require separate placement of components during transportation, taking up a lot of space. Summary of the Invention
[0003] This utility model provides a luggage lock assembly fixing mechanism, which has the advantages of simple structure, quick installation, small transportation space, and can be assembled on an automated assembly line.
[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a luggage lock assembly fixing mechanism, including a lock assembly mounting groove on the luggage shell, an upper lock body, and a lower lock shell. The upper lock body is provided with an upper lock panel and a recessed lock cylinder shell. The length and width dimensions of the upper lock panel are both larger than the length and width dimensions of the lock assembly mounting groove, and the length and width dimensions of the recessed lock cylinder shell are both smaller than the length and width dimensions of the lock assembly mounting groove. The length and width dimensions of the upper edge of the lower lock shell are both larger than the length and width dimensions of the lock assembly mounting groove. The recessed lock cylinder shell is provided with a connecting plate, a retaining spring, and a fixing plate. One side of the connecting plate is connected to the recessed lock cylinder shell, and the other side of the connecting plate is connected to the fixing plate. The spring clip is clamped and fixed between the connecting plate and the fixing plate. The two ends of the spring clip are respectively provided with a single snap-fit connector and a double snap-fit connector. The inner sidewalls on both sides of the lower lock shell are respectively provided with a single snap-fit protrusion and a double snap-fit protrusion. The single snap-fit connector is engaged and fixed with the single snap-fit protrusion, and the double snap-fit connector is engaged and fixed with the double snap-fit protrusion. The width of the single snap-fit connector is less than or equal to the gap width between the double snap-fit protrusions, and the width of the single snap-fit protrusion is less than or equal to the gap width between the double snap-fit connectors. The upper lock body and the lower lock shell are respectively attached to both sides of the lock assembly mounting groove on the box shell, clamping and fixing the box shell, upper lock body and lower lock shell to the box shell.
[0005] The beneficial effects of this utility model are as follows: By using an upper locking panel whose length and width are both larger than the length and width of the lock assembly mounting groove, and the upper edge of the lower lock shell, the two sides of the lock assembly mounting groove on the box shell are clamped together. Then, through the snap-fit between the lower lock shell and the spring clip, and the snap-fit between the connecting plate and the recessed lock cylinder shell, the effect of nail-free installation and quick assembly of the box shell surface is achieved. The specific installation process is as follows: First, install the spring clip between the connecting plate and the fixing plate. Then, pass the recessed lock cylinder shell through the lock assembly mounting groove. Then, fix the connecting plate together with the spring clip and the fixing plate to the recessed lock cylinder shell. Finally, snap the lower lock shell on. Through the snap-fit joints on the spring clip and the single snap-fit joints on the spring clip, respectively, they engage with the single snap-fit protrusions and double snap-fit protrusions on the inner side wall of the lower lock shell, thereby fixing the lower lock shell and the upper lock body together. The entire assembly process is quick, and the entire assembly... The assembly process requires no manual riveting or screwing, enabling automated assembly line assembly. For ease of transport, the lower lock housing can be rotated 180 degrees and fitted over the outer side of the recessed lock cylinder housing. At this point, the double-clamping protrusions on the lower lock housing correspond to the single-clamping joints on the spring clips, and vice versa. Since the width of the single-clamping joint is less than or equal to the gap between the double-clamping protrusions, there is no interlocking fit between the lower lock housing and the spring clips. This allows the lower lock housing to be easily removed from its fitted position on the outer side of the recessed lock cylinder housing. When installation on the housing is required, the installation process described above can be followed. This allows the entire lock assembly to be placed together during transport without affecting subsequent installation.
[0006] Furthermore, the connecting plate is provided with a hook, and the recessed lock cylinder shell is provided with a slot. The hook and the slot engage in a snap-fit relationship, which can achieve the effect of quick assembly and also achieve the effect of connection without rivets or screws.
[0007] Furthermore, the connecting plate is provided with threaded holes, and the fixing plate is provided with screws. The screws are threadedly engaged with the threaded holes to connect and fix the connecting plate and the fixing plate. The fixing of the connecting plate and the fixing plate can be pre-operated by pre-fixing the snap ring between the two, realizing the integrated pre-connection of the three small components of the connecting plate, the fixing plate and the snap ring, which is more convenient for subsequent installation on the bag.
[0008] Furthermore, the snap-fit protrusion is an oblique protrusion structure, and the snap-fit connector of the snap-fit spring plate cooperates with the oblique surface of the snap-fit protrusion. The oblique protrusion structure can achieve a clamping effect when the shell plates between the upper lock body and the lower lock shell are of different thicknesses. That is, the size of the gap between the upper lock body and the lower lock shell is affected by the different positions of the snap-fit connector of the snap-fit spring plate on the oblique surface of the snap-fit protrusion, which can be used for shell plates of different thicknesses.
[0009] Furthermore, the snap-fit connector of the snap-fit spring is toothed, which can achieve a more secure snap-fit effect.
[0010] Furthermore, the fixing plate is provided with disassembly screws, and the recessed lock cylinder shell is provided with disassembly screw holes. The disassembly screws are threadedly engaged with the disassembly screw holes for fixation. The lower lock shell is provided with multiple through holes, which correspond to the positions of the screws and disassembly screws on the fixing plate, respectively. The diameter of the through holes is larger than the maximum outer diameter of the screws and disassembly screws. The disassembly screws allow for easy removal if, after the lock assembly is installed, the incorrect installation direction is discovered or a component needs to be replaced. The lower lock shell, along with the fixing plate and the retaining spring, can be removed from the connecting plate and the recessed lock cylinder shell by loosening all the disassembly screws and bolts. After adjusting the direction or replacing the component, it can be re-fixed using the disassembly screws and bolts. The diameter of the through holes on the lower lock shell is set to be larger than the maximum outer diameter of the screws and disassembly screws, so that the lower lock shell can be directly snapped on and engaged with the retaining spring during installation.
[0011] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description
[0012] Figure 1 This is a structural schematic diagram of a bag lock assembly fixing mechanism provided by this utility model.
[0013] Figure 2 yes Figure 1 Another perspective diagram.
[0014] Figure 3 yes Figure 1 A schematic diagram of the decomposition state.
[0015] Figure 4 This is a schematic diagram showing the engagement state of the retaining spring and the lower locking shell.
[0016] Figure 5 yes Figure 4 Another perspective diagram.
[0017] Figure 6 This is a schematic diagram showing the engagement state of the retaining ring and the connecting plate. Detailed Implementation
[0018] like Figure 1-6As shown, this utility model provides a luggage lock assembly fixing mechanism, including a lock assembly mounting groove 11 on the luggage shell 1, an upper lock body 2, and a lower lock shell 3. The upper lock body 2 is provided with an upper lock panel 21 and a recessed lock cylinder shell 22. The length and width dimensions of the upper lock panel 21 are both larger than the length and width dimensions of the lock assembly mounting groove 11, and the length and width dimensions of the recessed lock cylinder shell 22 are both smaller than the length and width dimensions of the lock assembly mounting groove 11. The length and width dimensions of the upper edge 31 of the lower lock shell 3 are both larger than the length and width dimensions of the lock assembly mounting groove 11. The recessed lock cylinder shell 22 is provided with a connecting plate 4, a retaining spring 5, and a fixing plate 6. One side of the connecting plate 4 is connected to the recessed lock cylinder shell 22, and the other side of the connecting plate 4 is connected to the fixing plate 6. The retaining spring 5 is clamped and fixed between the connecting plate 4 and the fixing plate 6. The retaining spring 5 has a single retaining connector 51 and a double retaining connector 52 at both ends. The inner sidewalls on both sides of the lower lock shell 3 have a single retaining protrusion 32 and a double retaining protrusion 33. The single retaining connector 51 is engaged with the single retaining protrusion 32 and fixed, and the double retaining connector 52 is engaged with the double retaining protrusion 33 and fixed. The width of the single retaining connector 51 is less than or equal to the spacing width between the double retaining protrusions 33. The width of 2 is less than or equal to the gap width between the double-lock connectors 52. The upper lock body 2 and the lower lock shell 3 are respectively attached to both sides of the lock assembly mounting groove 11 on the housing 1, clamping and fixing the housing 1, the upper lock body 2 and the lower lock shell 3 onto the housing 1. The connecting plate 4 is provided with a hook 41, and the recessed lock cylinder shell 22 is provided with a groove 23. The hook 41 engages with the groove 23. The connecting plate 4 is provided with a threaded hole 42, and the fixing plate 6 is provided with a screw 61. The screw 61 engages with the threaded hole 42 to connect and fix the connecting plate 4 and the fixing plate 6. The snap-fit protrusion 32 has an oblique protrusion structure. The snap-fit connector 51 of the snap-fit spring sheet 5 cooperates with the oblique surface of the snap-fit protrusion 32. The snap-fit connector 51 of the snap-fit spring sheet 5 has a toothed structure. The fixing plate 6 is provided with a disassembly screw 62. The recessed lock cylinder shell 22 is provided with a disassembly screw hole 24. The disassembly screw 62 is threadedly connected and fixed with the disassembly screw hole 24. The lower lock shell 3 is provided with multiple through holes 34. The through holes 34 correspond to the positions of the screw 61 and the disassembly screw 62 on the fixing plate 6, and the diameter of the through holes 34 is larger than the maximum outer diameter of the screw 61 and the disassembly screw 62.
Claims
1. A luggage lock assembly fixing mechanism, comprising a lock assembly mounting groove (11) on a luggage shell (1), an upper lock body (2) and a lower lock shell (3), characterized in that: The upper lock body (2) is provided with an upper lock panel (21) and a recessed lock cylinder shell (22). The length and width of the upper lock panel (21) are both greater than the length and width of the lock assembly mounting groove (11). The length and width of the recessed lock cylinder shell (22) are both smaller than the length and width of the lock assembly mounting groove (11). The length and width of the upper edge (31) of the lower lock shell (3) are both greater than the length and width of the lock assembly mounting groove (11). The recessed lock cylinder shell (22) is provided with a connecting plate (4), a snap ring (5), and a fixing plate (6). One side of the connecting plate (4) is connected to the recessed lock cylinder shell (22), and the other side of the connecting plate (4) is connected to the fixing plate (6). The snap ring (5) is clamped and fixed between the connecting plate (4) and the fixing plate (6). The snap ring (5) is provided with two ends respectively. There are single-lock connectors (51) and double-lock connectors (52). The inner walls on both sides of the lower lock shell (3) are respectively provided with single-lock protrusions (32) and double-lock protrusions (33). The single-lock connector (51) is locked and fixed with the single-lock protrusion (32). The double-lock connector (52) is locked and fixed with the double-lock protrusion (33). The width of the single-lock connector (51) is less than or equal to the gap width between the double-lock protrusions (33). The width of the single-lock protrusion (32) is less than or equal to the gap width between the double-lock connectors (52). The upper lock body (2) and the lower lock shell (3) are respectively attached to the two sides of the lock assembly mounting groove (11) on the box shell (1) to lock the box shell (1), and the upper lock body (2) and the lower lock shell (3) are locked and fixed on the box shell (1).
2. The bag lock assembly fixing mechanism according to claim 1, characterized in that: The connecting plate (4) is provided with a hook (41), and the recessed lock cylinder shell (22) is provided with a groove (23). The hook (41) and the groove (23) engage with each other.
3. The bag lock assembly fixing mechanism according to claim 1, characterized in that: The connecting plate (4) is provided with a threaded hole (42), and the fixing plate (6) is provided with a screw (61). The screw (61) and the threaded hole (42) are threaded together to connect and fix the connecting plate (4) and the fixing plate (6).
4. The bag lock assembly fixing mechanism according to claim 1, characterized in that: The snap-fit protrusion (32) is a slanted protrusion structure, and the snap-fit joint (51) of the snap-fit spring sheet (5) is matched with the slanted surface of the snap-fit protrusion (32).
5. A bag lock assembly fixing mechanism according to claim 1 or 4, characterized in that: The snap joint (51) of the snap ring (5) has a toothed structure.
6. A bag lock assembly fixing mechanism according to claim 3, characterized in that: The fixing plate (6) is provided with a disassembly screw (62), and the recessed lock cylinder shell (22) is provided with a disassembly screw hole (24). The disassembly screw (62) is threadedly connected and fixed with the disassembly screw hole (24). The lower lock shell (3) is provided with multiple through holes (34). The through holes (34) correspond to the positions of the screw (61) and the disassembly screw (62) on the fixing plate (6), and the diameter of the through hole (34) is greater than the maximum outer diameter of the screw (61) and the disassembly screw (62).