Tool-free bag lock convenient to disassemble
By designing a locking mechanism that fits the locking element into the base in the luggage lock, and using manual pressing to release the locking mechanism from the protrusion, the problem of requiring special tools for disassembly in existing technologies is solved, achieving convenient tool-free disassembly and cost reduction.
Patent Information
- Application Number
- CN202423131390.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-18
AI Technical Summary
Existing locks for bags and luggage require special tools to open, and are complex in structure and expensive.
The lock adopts an interlocking structure design between the locking component and the base. By manually pressing the operating protrusion of the locking component, the fulcrum protrusion abuts against the outer wall of the lock body, thereby releasing the locking part and achieving tool-free disassembly.
The body can be disassembled manually without the need for external tools, simplifying the operation process and reducing manufacturing costs.
Smart Images

Figure CN223549085U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of luggage lock technology, specifically to a tool-free luggage lock that is easy to disassemble. Background Technology
[0002] Currently, due to their high security and ease of operation, combination locks are widely used on various bags to provide security. Existing bag locks generally consist of a base and a lock body. The base has an upward-facing receiving groove, in which the lock body is embedded. For example, the combination lock disclosed in Chinese patent document CN220599502U.
[0003] Traditionally, the base and lock body are fixed together with screws, which is inconvenient for manufacturing and assembly. Later, a structure was developed in which the lock body and lock base are snapped together, eliminating the need for screws during assembly and making the operation much more convenient.
[0004] However, due to limitations in the existing locking structure between the base and the lock body, a special tool is required to disassemble the lock. Existing technology uses a longitudinally locking slider between the base and the lock body, with a window at the bottom of the base. The locking slider is laterally engaged with the base via one-way teeth. Disassembly requires a special tool inserted from below through the window in the base, pushing the sidewalls of the base outwards to disengage the one-way teeth. This allows the locking slider to be moved laterally, thus releasing the lock body. It should be noted that the locking slider in existing technology resembles a U-shape / I-shape. Because the window in the base is located at the bottom, the tool inserted from below against the locking slider and the sidewalls of the base can only reach the bottom of the locking slider. Due to the force arm, even with significant pressure applied, the U-shaped arms of the locking slider only tilt, not enough to compress and deform the one-way teeth. Therefore, it can only deform the sidewalls of the base, necessitating the use of a tool to compress the sidewalls from the inside out. Furthermore, the strength of the base in the existing technology is greatly weakened because the window is located at the bottom. It is necessary to rely on the U-shaped / I-shaped shape of the locking slider to compensate for the strength of the base. Therefore, the shape of the locking slider is limited by the position of the base window, and its structural shape is difficult to change.
[0005] In summary, existing screwless locks for bags require specialized tools to disassemble, have complex structures, and are costly. Utility Model Content
[0006] In view of the above-mentioned technical problems, the present invention provides a tool-free bag lock that is easy to disassemble.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A tool-free, easily disassembled bag lock is provided, comprising a base and a lock body, both of which are elongated strips. The base includes a bottom wall, a long side wall, and an end side wall that together form an upward-facing receiving groove. The lock body is embedded in the receiving groove and its top is exposed.
[0009] A locking element that can slide along the length of the base is provided between the outer side of the lock body and the long side wall of the base;
[0010] The base is provided with a directional structure for longitudinally limiting the locking element;
[0011] The base has a first retaining part on its long side wall and a second retaining part on its locking member; the locking member has a first engaging structure and the lock body has a second engaging structure; when the locking member slides forward to a preset position, the first engaging structure and the second engaging structure engage along the length of the base to restrict the lock body from longitudinally disengaging from the receiving groove; and the first retaining part engages with the second retaining part to restrict the locking member from moving in the opposite direction.
[0012] Its characteristics are:
[0013] The locking member has a fulcrum protrusion on the side of the second holding part, and there is a clearance space between the position of the second holding part of the locking member and the outer surface of the lock body.
[0014] The base has a window on its long side wall, and the locking element has an operating protrusion located next to the second holding part, which is exposed from the window.
[0015] An external force presses the operating protrusion inward from the window, causing the fulcrum to abut against the outer wall of the lock body. The locking member, which has a second locking part, deforms to make room, thereby releasing the engagement between the first locking part and the second locking part.
[0016] As a further optional solution, the locking component is U-shaped in general, including a first arm, a second arm and a connecting section. The connecting section connects the ends of the first arm and the second arm. The first arm and the second arm are respectively located on the opposite long sidewalls of the base. The first arm and the second arm are respectively provided with the second holding part, the fulcrum protrusion and the first fitting structure.
[0017] As a further alternative, the end sidewall of the base has an installation notch, the locking element is inserted into the base through the installation notch, and the connecting section protrudes from the installation notch in part.
[0018] As a further alternative, the fulcrum protrusion includes a first fulcrum portion and a second fulcrum portion that are separately arranged on both sides of the second holding portion.
[0019] As a further optional solution, the long side wall of the base includes a first vertical part, a first horizontal part, a second vertical part, and a second horizontal part arranged sequentially from bottom to top; the first vertical part is connected to the bottom wall, the first horizontal part extends outward and is arranged laterally, the first horizontal part, the second vertical part, and the second horizontal part form an inwardly opening directional groove, the locking member is slidably embedded in the directional groove, and the second horizontal part serves as the directional structure.
[0020] As a further alternative, the window is disposed throughout the first horizontal section and the second vertical section.
[0021] As a further alternative, the second holding part and the operating protrusion are arranged vertically on the same side of the locking member, with the operating protrusion passing through the window.
[0022] As a further alternative, the locking member is supported by the first horizontal part, and a distance is left between the inner side of the locking member and the inner side of the first vertical part, thereby freeing up the clearance space.
[0023] As a further alternative, the first fitting structure includes a trapezoidal boss located on the locking member, and the second fitting structure includes a slanted groove located on the lock body.
[0024] As a further optional solution, the locking element and the base are both integrated structures.
[0025] The beneficial effects of this utility model are:
[0026] This utility model discloses a tool-free, easy-to-disassemble bag lock. Compared with the prior art, it does not require external tools. The first locking part of the base can be separated from the second locking part of the locking part by simply pressing the locking part manually. The operation is simple, no special tools are required, and the manufacturing cost is reduced. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of a tool-free, easy-to-disassemble luggage lock as shown in the embodiment.
[0028] Figure 2 This is an exploded view of a tool-free, easy-to-disassemble bag lock as described in the embodiment.
[0029] Figure 3 This is a schematic diagram showing the fit between the base and the locking element in the embodiment.
[0030] Figure 4 This is a cross-sectional view of the base and locking element in the embodiment.
[0031] Figure 5 This is a schematic diagram of the locking component in the embodiment.
[0032] Figure label:
[0033] Base 1, receiving groove 11, bottom wall 12, long side wall 13, first vertical part 131, first horizontal part 132, second vertical part 133, second horizontal part 134, end side wall 14, first holding part 15, window 16, mounting notch 17;
[0034] Lock body 2, flange 21, second fitting structure 22;
[0035] Locking component 3, first arm body 31, second arm body 32, connecting section 33, second holding part 34, first fitting structure 35, fulcrum protrusion 36, first fulcrum part 361, second fulcrum part 362, operating protrusion 37;
[0036] Give up space 4. Detailed Implementation
[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0038] This embodiment provides a tool-free, easy-to-disassemble bag lock, such as... Figures 1 to 5 As shown, it includes a base 1 and a lock body 2, both of which are elongated. The base 1 includes a bottom wall 12, two long side walls 13 and an end side wall 14 that together form an upward-facing receiving groove 11. The lock body 2 is embedded in the receiving groove 11 and its top is exposed. The top periphery of the lock body 2 is provided with a flange 21, which cooperates with the top surface of the base 1.
[0039] A locking member 3 that can slide along the length of the base 1 is provided between the outer side of the lock body 2 and the long side wall 13 of the base 1. The locking member 3 is an integrated structure and is U-shaped. It includes a first arm 31, a second arm 32 and a connecting section 33. The connecting section 33 connects the ends of the first arm 31 and the second arm 32. The first arm 31 and the second arm 32 are arranged symmetrically and are located on the opposite long side walls 13 of the base 1.
[0040] The long sidewall 13 of the base 1 is provided with a first retaining part 15, and the first arm 31 and the second arm 32 are provided with a second retaining part 34. The first retaining part 15 and the second retaining part 34 are interlocking helical teeth, used to unidirectionally prevent the locking member 3 from sliding (not preventing in the forward direction, but preventing in the reverse direction). The locking member 3 is provided with a first fitting structure 35, and the lock body 2 is provided with a second fitting structure 22. The first fitting structure 35 includes a trapezoidal boss located on the locking member 3, and the second fitting structure 22 includes a slanted groove located on the lock body 2. The trapezoidal boss can be inserted into the slanted groove along the length direction of the base 1, thereby restricting the lock body 2 from longitudinally disengaging from the receiving groove 11. In this example, the first retaining part 15 and the second retaining part 34 are helical teeth, but they can also be replaced with buckles.
[0041] When it is necessary to assemble the lock body 2 and the base 1, the lock body 2 is placed in the receiving groove 11, and the locking member 3 is slid forward to the preset position: then the first fitting structure 35 and the second fitting structure 22 fit together along the length direction of the base 1 to restrict the lock body 2 from longitudinally disengaging from the receiving groove 11; and the first holding part 15 and the second holding part 34 engage to restrict the locking member 3 from moving in the opposite direction, so that the base 1, the locking member 3 and the lock body 2 can be fixed.
[0042] In this embodiment, the locking member 3 has a fulcrum protrusion 36 on the side of the second holding part 34, and a clearance space 4 is left between the locking member 3 with the second holding part 34 and the outer side of the lock body 2. The long side wall 13 of the base 1 has a window 16, and the locking member 3 has an operating protrusion 37 adjacent to the second holding part 34. The operating protrusion 37 is exposed through the window 16, and the outer wall surface of the operating protrusion 37 is flush with or substantially flush with the outer wall surface of the second upright part 133.
[0043] When it is necessary to remove the lock body 2, external force is applied from the window 16 to press the operating protrusion 37 inward, causing the fulcrum protrusion 36 to abut against the outer wall of the lock body 2. The locking member 3, which has the second holding part 34, deforms towards the clearance space 4, thereby releasing the engagement between the first holding part 15 and the second holding part 34. The locking member 3 can then be moved in the opposite direction to separate the first fitting structure 35 from the second fitting structure 22, allowing the lock body 2 to be removed.
[0044] Compared with existing technologies, without the need for external tools, the first holding part 15 of the base 1 can be separated from the second holding part 34 of the locking member 3 simply by manually pressing the locking member 3. The operation is simple, no special tools are required, and manufacturing costs are reduced.
[0045] In this embodiment, the end sidewall 14 of the base 1 has an installation notch 17. The locking member 3 is inserted into the base 1 through the installation notch 17, and the connecting section 33 protrudes from the installation notch 17 in part as a button. During assembly, pressing the connecting section 33 into the base 1 will lock the locking body 2.
[0046] In this embodiment, the fulcrum protrusion 36 includes a first fulcrum portion 361 and a second fulcrum portion 362 arranged separately on both sides of the second holding portion 34. That is, the second holding portion 34 is located between the first fulcrum portion 361 and the second fulcrum portion 362, and the second holding portion 34 is more likely to arch and deform when pressed.
[0047] In this embodiment, the long sidewall 13 of the base 1 includes, from bottom to top, a first vertical portion 131, a first horizontal portion 132, a second vertical portion 133, and a second horizontal portion 134 arranged sequentially. The first vertical portion 131 forms a U-shape with the bottom wall 12 (the opening size is approximately the same as that of the lock body 2). The first horizontal portion 132 extends outward and is arranged laterally. The second horizontal portion 134 and the first horizontal portion 132 are arranged vertically opposite each other. The first horizontal portion 132, the second vertical portion 133, and the second horizontal portion 134 form an inwardly opening directional groove. The locking member 3 is slidably embedded in the directional groove. The second horizontal portion 134 serves as a directional structure to longitudinally limit the locking member 3. The window 16 is provided through the first horizontal portion 132 and the second vertical portion 133. The window 16 cannot penetrate to the bottom wall 12 of the base 1, otherwise it would affect the strength of the base 1, and it is unnecessary to penetrate through the first vertical portion 131.
[0048] In this embodiment, the locking member 3 is supported by the first horizontal part 132, and a distance is left between the inner side of the locking member 3 and the inner side of the first vertical part 131, thereby freeing up the clearance space 4. The fulcrum protrusion 36 is flush with or substantially flush with the inner side of the first vertical part 131.
[0049] In the description of this utility model, it is obvious that the described embodiments are only a part of the embodiments of this utility model, and not all of them. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0050] Therefore, the above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0051] In the description of this utility model, it should be noted that the terms "middle," "upper," "lower," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0052] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
Claims
1. A tool-free, easy-to-disassemble bag lock, comprising a base (1) and a lock body (2) both of which are elongated strips. The base (1) includes a bottom wall (12), a long side wall (13), and an end side wall (14) that together form an upward-facing receiving groove (11). The lock body (2) is embedded in the receiving groove (11) and its top is exposed. A locking element (3) that can slide along the length of the base (1) is provided between the outer side of the lock body (2) and the long side wall (13) of the base (1); The base (1) is provided with a directional structure for longitudinally limiting the locking element (3); The base (1) has a first holding part (15) on its long side wall and a second holding part (34) on its locking member (3). The locking member (3) has a first fitting structure (35) and a second fitting structure (22) on its lock body (2). When the locking member (3) slides forward to a preset position, the first fitting structure (35) and the second fitting structure (22) fit together along the length of the base (1) to restrict the lock body (2) from longitudinally disengaging from the receiving groove (11). The first holding part (15) and the second holding part (34) fit together to restrict the locking member (3) from moving in the opposite direction. Its characteristics are: The locking member (3) has a fulcrum protrusion (36) on the side of the second holding part (34), and there is a clearance space (4) between the locking member (3) having the second holding part (34) and the outer side of the lock body (2). The long side wall (13) of the base (1) is provided with a window (16), and the locking member (3) is provided with an operating protrusion (37) located on the side of the second holding part (34). The operating protrusion (37) is exposed from the window (16). An external force presses the operating protrusion (37) inward from the window (16), causing the fulcrum protrusion (36) to abut against the outer wall of the lock body (2), and the locking member (3) with the second holding part (34) deforms towards the clearance space (4), thereby releasing the engagement relationship between the first holding part (15) and the second holding part (34).
2. The tool-free, easily disassembled bag lock according to claim 1, characterized in that: The locking component (3) is U-shaped in general. It includes a first arm (31), a second arm (32) and a connecting section (33). The connecting section (33) connects the ends of the first arm (31) and the second arm (32). The first arm (31) and the second arm (32) are respectively located on the opposite long sidewalls (13) of the base (1). The first arm (31) and the second arm (32) are respectively provided with the second holding part (34), the fulcrum protrusion (36) and the first fitting structure (35).
3. A tool-free, easily disassembled bag lock according to claim 2, characterized in that: The end sidewall (14) of the base (1) has an installation notch (17), the locking member (3) is inserted into the base (1) from the installation notch (17), and the connecting section (33) protrudes from the installation notch (17) in part.
4. A tool-free, easily disassembled bag lock according to claim 2, characterized in that: The fulcrum protrusion (36) includes a first fulcrum portion (361) and a second fulcrum portion (362) arranged separately on both sides of the second holding portion (34).
5. A tool-free, easily disassembled bag lock according to claim 1, characterized in that: The long side wall (13) of the base (1) includes a first vertical part (131), a first horizontal part (132), a second vertical part (133), and a second horizontal part (134) arranged sequentially from bottom to top; the first vertical part (131) is connected to the bottom wall (12), the first horizontal part (132) extends outward and is arranged laterally, the first horizontal part (132), the second vertical part (133), and the second horizontal part (134) form an inwardly opening directional groove, the locking member (3) is slidably embedded in the directional groove, and the second horizontal part (134) serves as the directional structure.
6. A tool-free, easily disassembled bag lock according to claim 5, characterized in that: The window (16) is disposed through the first horizontal part (132) and the second vertical part (133).
7. A tool-free, easily disassembled bag lock according to claim 1 or 6, characterized in that: The second holding part (34) and the operating protrusion (37) are arranged vertically on the same side of the locking member (3), and the operating protrusion (37) passes through the window (16).
8. A tool-free, easily disassembled bag lock according to claim 5, characterized in that: The locking member (3) is supported by the first horizontal part (132), and there is a distance between the inner side of the locking member (3) and the inner side of the first vertical part (131), thereby freeing up the clearance space (4).
9. A tool-free, easily disassembled bag lock according to claim 1, characterized in that: The first fitting structure (35) includes a trapezoidal boss located on the locking member (3), and the second fitting structure (22) includes a slanted groove located on the lock body (2).
10. A tool-free, easily disassembled bag lock according to claim 1, characterized in that: The locking element (3) and the base (1) are both integrated structures.
Citation Information
Patent Citations
Password luggage lock with decorative frame
CN220599502U
Cited By
Tool-free bag lock convenient to disassemble
CN119686586A