A lock body
The "I"-shaped snap-fit design solves the problems of difficult lock shell processing and poor aesthetics, achieving a firm connection and beautiful appearance for the lock body.
Patent Information
- Application Number
- CN202522174384.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-15
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-15
AI Technical Summary
The lock shells of existing lock bodies are mostly made by laser welding or riveting, which is difficult to process, costly, not sturdy, and aesthetically unappealing.
The design employs an "I"-shaped snap-fit tab, where the bottom and top shells are securely connected via the snap-fit tab's snap-fit joint and slot, combined with a guide bevel and elastic element.
It achieves a firm connection of the lock case, is easy to process and aesthetically pleasing, and improves the connection strength and stability of the lock body.
Smart Images
Figure CN224931497U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a lock body. Background Technology
[0002] Most existing lock bodies, especially lock shells that are two-part hinges, are made by laser welding or riveting. Laser welding is difficult to process, costly, and has poor strength. Similarly, riveting is also difficult to process, easy to break, and unsightly. Summary of the Invention
[0003] This utility model provides a lock body that has the advantages of strong connection, convenient processing and beautiful surface.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a lock body, including a lock shell and a lock assembly, the lock assembly being installed inside the lock shell, the lock shell including a bottom shell and an upper shell, a snap-fit piece being provided between the bottom shell and the upper shell, the snap-fit piece being "I" shaped, the snap-fit piece including snap-fit connectors at both ends and a connecting part in the middle, a first snap-fit groove being provided on the bottom shell, a second snap-fit groove being provided on the upper shell, a first notch being provided on the first snap-fit groove, a second notch being provided on the second snap-fit groove, the first snap-fit groove and the second snap-fit groove respectively engaging with the snap-fit connectors at both ends of the snap-fit piece, the two ends of the connecting part respectively engaging with the corresponding notches one and two, a guide slope being provided at the front end of the second snap-fit groove, the highest point of the guide slope being higher than the bottom surface of the second snap-fit groove and the second notch, the snap-fit piece having elastic force, the elastic force providing the snap-fit piece to enter the second snap-fit groove along the guide slope and remain within the second snap-fit groove.
[0005] The beneficial effects of this utility model are as follows: The entire lock assembly of the lock body is installed on the bottom shell of the lock case. Then, through the "I"-shaped locking piece between the bottom shell and the top shell, the locking head of one end of the locking piece is first inserted into the first slot on the bottom shell, and at the same time, the connecting end of the locking piece is inserted into the first notch. Finally, the top shell is closed on the bottom shell. During this process, the locking head of the other end of the locking piece enters the second slot after passing through the guide slope under the action of elastic force and is held in the second slot. The other end of the connecting part of the locking piece is also inserted into the second notch. Since the highest point of the guide slope is higher than the bottom surface of the second slot and the second notch, the locking head of the locking piece cannot be disengaged from the second slot. Finally, the bottom shell and the top shell of the lock case are firmly connected together by the locking heads at both ends of the "I"-shaped locking piece along the direction of the closing of the bottom shell and the top shell. The locking piece can be made of metal to provide a certain elastic force while also having high strength.
[0006] Furthermore, each of the upper and lower ends of the lock housing is provided with a snap-fit piece and corresponding slot 1, slot 2, notch 1, notch 2 and guide slope. The simultaneous provision of a snap-fit piece at each of the upper and lower ends can further increase the connection fixation while also limiting the opening of the gap caused by the vertical displacement between the bottom and upper shells.
[0007] Furthermore, the snap-fit piece is also provided with an elastic element. The elastic element provides elastic force for the snap-fit piece to enter the second slot along the guide slope and remain in the second slot. The elastic element can be used to make the main body of the snap-fit piece with a thicker metal sheet with higher strength, thereby further increasing the connection firmness. At the same time, the elastic element can also keep the snap-fit piece in the second slot.
[0008] Furthermore, the snap-fit connectors at both ends of the snap-fit piece form an oblique folded surface with the opposite connecting part. The oblique folded surface is in the same direction as the guide slope. The oblique folded surface and the guide slope are designed to cooperate, which makes it easier for the snap-fit connector of the snap-fit piece to enter the snap-fit slot two through the guide slope when the cover is closed.
[0009] Furthermore, the elastic element includes a fixed base and an elastic end. The fixed base is installed on the bottom shell, and the elastic end abuts against the snap-fit piece and provides elastic force to the snap-fit piece. The structure of the fixed base and the elastic end of the elastic element can provide some stability when the snap-fit piece is installed on the bottom shell, and at the same time increase the stability of the snap-fit piece in the lock shell after the cover is closed.
[0010] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of a lock body provided by this utility model.
[0012] Figure 2 yes Figure 1 A schematic diagram of the structure after removing the lock group.
[0013] Figure 3 yes Figure 2 Exploded view diagram.
[0014] Figure 4 yes Figure 3 Another perspective diagram.
[0015] Figure 5 yes Figure 4 Another perspective diagram.
[0016] Figure 6 This is a schematic diagram of the structure of the first embodiment of the snap-fit connector.
[0017] Figure 7 This is a schematic diagram of the structure of the second embodiment of the snap-fit connector.
[0018] Figure 8 This is a schematic diagram of the third embodiment of the snap-fit connector.
[0019] Figure 9 This is a schematic diagram of the fourth embodiment of the snap-fit connector. Detailed Implementation
[0020] like Figures 1-9 As shown, this utility model provides a lock body including a lock shell 10 and a lock assembly 20. The lock assembly 20 is installed inside the lock shell 10. The lock shell 10 includes a bottom shell 1 and an upper shell 2. A snap-fit piece 3 is provided between the bottom shell 1 and the upper shell 2. The snap-fit piece 3 is "I"-shaped and includes snap-fit connectors 31 at both ends and a connecting part 32 in the middle. The bottom shell 1 has a first snap-fit groove 11, and the upper shell 2 has a second snap-fit groove 21. The first snap-fit groove 11 has a first notch 12, and the second snap-fit groove 21 has a second notch 22. The first snap-fit groove 11 and the second snap-fit groove 21 are respectively snapped into the snap-fit connectors 31 at both ends of the snap-fit piece 3. The two ends of the connecting part 32 are respectively snapped into the first notch 12 and the second notch 22. The front end of the second snap-fit groove 21 has a guide slope 23. The highest point of the guide slope 23 is higher than the bottom surface of the second snap-fit groove 21 and the second notch 22. The latching piece 3 has an elastic force, which allows the latching piece 3 to enter the second slot 21 along the guide slope 23 and remain in the second slot 21. Each of the upper and lower ends of the lock housing 10 is provided with a latching piece 3 and a corresponding slot 11, slot 21, notch 12, notch 22 and guide slope 23. The latching piece 3 is also provided with an elastic element 4, which provides the latching piece 3 with an elastic force to enter the second slot 21 along the guide slope 23 and remain in the second slot 21. The latching heads 31 at both ends of the latching piece 3 form an oblique fold surface with the relative connecting part 32. The oblique fold surface is in the same direction as the guide slope 23. The elastic element 4 includes a fixed base 41 and an elastic end 42. The fixed base 41 is installed on the bottom shell 1, and the elastic end 42 abuts against the latching piece 3 and provides elastic force to the latching piece 3.
Claims
1. A lock body, comprising a lock shell (10) and a lock assembly (20), the lock assembly (20) being installed within the lock shell (10), characterized in that: The lock housing (10) includes a bottom shell (1) and an upper shell (2). A snap-fit piece (3) is provided between the bottom shell (1) and the upper shell (2). The snap-fit piece (3) is in the shape of an "I". The snap-fit piece (3) includes snap-fit connectors (31) at both ends and a connecting part (32) in the middle. The bottom shell (1) is provided with a first snap-fit groove (11), and the upper shell (2) is provided with a second snap-fit groove (21). The first snap-fit groove (11) is provided with a first notch (12), and the second snap-fit groove (21) is provided with a second notch (22). The first snap-fit groove (11) and the second snap-fit groove (21) are connected by a snap-fit piece (32). The second slot (21) engages with the snap-fit connectors (31) at both ends of the snap-fit piece (3). The two ends of the connecting part (32) engage with the notch one (12) and the notch two (22) respectively. The front end of the second slot (21) is provided with a guide slope (23). The highest point of the guide slope (23) is higher than the bottom surface of the second slot (21) and the notch two (22). The snap-fit piece (3) has an elastic force. The elastic force provides the snap-fit piece (3) to enter the second slot (21) along the guide slope (23) and remain in the second slot (21).
2. A lock body according to claim 1, characterized in that: The lock housing (10) has a snap-fit piece (3) at each of its upper and lower ends, as well as a snap-fit groove 1 (11), a snap-fit groove 2 (21), a notch 1 (12), a notch 2 (22), and a guide slope (23) that correspond to and cooperate with the snap-fit piece (3).
3. A lock body according to claim 1 or 2, characterized in that: The snap-fit piece (3) is also provided with an elastic element (4), which provides the snap-fit piece (3) with elastic force to enter the second slot (21) along the guide slope (23) and remain in the second slot (21).
4. A lock body according to claim 1 or 2, characterized in that: The snap-fit connectors (31) at both ends of the snap-fit piece (3) form an oblique fold surface with respect to the connecting part (32), and the oblique fold surface is in the same direction as the guide slope (23).
5. A lock body according to claim 3, characterized in that: The elastic element (4) includes a fixed base (41) and an elastic end (42). The fixed base (41) is mounted on the bottom shell (1), and the elastic end (42) abuts against the snap-fit piece (3) and provides elastic force to the snap-fit piece (3).