Lock structure

Abstract

This utility model relates to the field of lock technology, and in particular to a lock structure. The lock structure includes an upper lock and a lower lock. The upper lock includes a base, a flap rotatably connected to the base, a bolt, and a limiting member. A hook is provided at the end of the base away from the bolt. A movable groove is provided inside the base, and one end of the bolt is located in the movable groove. The limiting member abuts against the end of the bolt and the inner wall of the movable groove. A lock groove is provided at the other end of the bolt, and a hook is provided on the side of the flap facing the bolt, opposite the lock groove. When the cabinet lid is closed, the hook on the base aligns with the lower lock. Pressing the base fixes the hook on the flap into the lock groove on the bolt, causing the base to move closer to the lower lock so that the hook engages with the lower lock. To unlock, pressing the bolt separates the hook from the bolt, opening the base and flap, and separating the hook from the lower lock, thus opening the cabinet. The structure is simple, the operation is very convenient, and the connection stability is higher.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, and in particular to a lock structure. Background Technology

[0002] Currently, most locks used in storage bags and luggage, both domestically and internationally, are snap-lock locks. These locks are installed at the connection between the lid and the body of the storage bag. Snap-lock locks typically use one or two of the following methods: key unlocking, combination lock, and fingerprint recognition unlocking. Their internal structure is generally simple, usually employing a spring-loaded hook connected to a latch for locking. However, frequent vibrations occur during luggage movement, causing the hook spring to vibrate. This spring vibration can lead to the hook swinging, resulting in abnormal unlocking. If the bag is dropped or impacted, the lock can easily spring open automatically, thus exhibiting poor shock and vibration resistance. Some locks utilize electronically controlled limiting structures on the hook to prevent swinging, improving locking reliability. However, these require both hands to lock, making them more cumbersome. Summary of the Invention

[0003] In order to address the technical deficiencies mentioned in the background section, the purpose of this utility model is to provide a lock structure.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A lock structure includes an upper lock and a lower lock. The upper lock includes a base, a flap rotatably connected to the base, a bolt inserted into one end of the base and movably connected to the base, and a limiting member. A hook is provided at the end of the base away from the bolt, and the hook is used to hook the lower lock to lock the housing. A movable groove is provided inside the base, and one end of the bolt is located in the movable groove. The limiting member abuts against the end of one end of the bolt and the inner sidewall of the movable groove. A lock groove is provided at the other end of the bolt, and a lock hook is provided on the side of the flap facing the bolt relative to the lock groove. When the housing is locked, the lock hook is locked in the lock groove.

[0005] By adopting the above technical solution, when the cabinet lid is closed, the hook on the base aligns with the lower lock. Pressing the base fixes the hook on the flap into the lock groove on the latch, causing the base to move closer to the lower lock so that the hook engages within it. To unlock, pressing the latch causes it to slide along the movable groove to release the hook, separating it from the latch. This opens the base and flap, and the hook separates from the lower lock, thus unlocking the cabinet. The structure is simple, the operation is very convenient, and the two sets of locking mechanisms work together to secure the cabinet, resulting in higher connection stability.

[0006] Furthermore, the base includes a mounting base and a fixing frame. The fixing frame is disposed within the mounting base, with one end of the fixing frame open to the bolt. One end of the bolt is slidably disposed within the fixing frame, and the limiting member abuts against the bolt and the other side of the fixing frame, thereby improving the efficiency of assembly and unlocking.

[0007] Furthermore, the latch includes a pressing block and a lock body. The pressing block is located on the outside of the mounting base, and the end of the lock body away from the pressing block is located within the fixing frame and abuts against the limiting member, facilitating automatic reset of the lock body. The width of the pressing block is smaller than the width of the lock body, saving costs and limiting the sliding stroke of the pressing block.

[0008] Furthermore, the lock also includes a key holder disposed within the fixed frame. One end of the key holder is located in a mounting hole at the bottom of the mounting base and has a keyhole. The other end of the key holder has an abutment portion. When the key holder is in the locked state, the abutment portion of the key holder is in close contact with the end of the lock body. When the key holder is in the open state, the abutment portion of the key holder separates from the lock body, improving the stability of the structure when locked, effectively preventing the lock from automatically opening, and making unlocking simple and convenient.

[0009] Furthermore, two limiting blocks are spaced apart on the side of the lock body away from the pressing block. The abutment portion is a protruding arc-shaped structure, and there are two abutment portions. The two abutment portions are spaced apart and symmetrically arranged along the central axis of the key seat, which facilitates rotation to abut the lock body, restricts the sliding of the lock body, and prevents the lock from unlocking automatically.

[0010] Furthermore, a gap is provided between the limiting block and the fixing frame, and the limiting member is disposed within the gap. The end of the limiting member abuts against the lock body. The structure is compact, the installation stability is higher, and the spring displacement can be prevented.

[0011] Furthermore, the base also includes a cover, which is disposed around the periphery of the fixing frame. The cover is used to seal the side of the fixing frame facing the flip plate, thereby improving the stability of the installation structure.

[0012] Furthermore, the lock structure also includes a rotating assembly, which comprises a first rotating shaft disposed on the base, a second rotating shaft disposed on the flap, a connecting piece connecting the first and second rotating shafts, and a torsion spring. The torsion spring is fitted onto the first and second rotating shafts, with one end of the torsion spring abutting against the base and the other end abutting against the flap. This facilitates locking the lower lock by pulling the base when the flap is locked onto the latch, resulting in a simple structure and convenient and quick operation.

[0013] Furthermore, the limiting component is designed as a spring structure, which provides better elastic reset and lower cost.

[0014] In summary, the beneficial effects of this utility model are as follows: In this invention, when the cabinet lid is closed, the hook on the base aligns with the lower lock. Pressing the base fixes the hook on the flap into the lock groove on the latch, causing the base to move closer to the lower lock so that the hook engages within it. To unlock, pressing the latch causes it to slide along the movable groove, releasing the hook and separating it from the latch. This opens the base and flap, separating the hook from the lower lock, thus opening the cabinet. The structure is simple and the operation is very convenient. The two sets of locking mechanisms work together to secure the cabinet, resulting in higher connection stability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of one embodiment of the lock structure of this utility model.

[0016] Figure 2 This is a cross-sectional structural diagram of one embodiment of the locking mechanism of this utility model.

[0017] Figure 3 This is a schematic diagram of the internal installation structure of one embodiment of the lock structure of this utility model.

[0018] Figure 4 This is an exploded structural diagram of an embodiment of the locking mechanism of this utility model.

[0019] Explanation of the reference numerals in the figure: 1. Lock structure; 2. Locking; 21. Base; 211. Hook; 212. Mounting base; 213. Fixing frame; 2131. Mounting groove; 214. Cover; 22. Flip plate; 221. Lock hook; 23. Lock tongue; 231. Lock groove; 232. Pressing block; 233. Lock body; 234. Limiting block; 24. Limiting component; 25. Key seat; 251. Abutment part; 252. Keyhole; 26. Key; 3. Locking down; 4. Rotating assembly; 41. First rotating shaft; 42. Second rotating shaft; 43. Connecting piece; 44. Torsion spring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0021] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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, the above terms should not be construed as limitations on this utility model.

[0022] In the description of this utility model, the use of terms such as "several" means one or more, with "multiple" meaning two or more. Terms like "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of terms like "first," "second," and "third" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the sequential relationship between indicated technical features.

[0023] The following is in conjunction with the appendix Figure 1-4 The embodiments of this utility model will be described in further detail below.

[0024] A lock structure 1, such as Figure 1 , Figure 2 , Figure 3 As shown, it includes an upper lock 2 and a lower lock 3. The upper lock 2 includes a base 21, a flap 22 rotatably connected to the base 21, a latch 23 inserted into one end of the base 21 and movably connected to the base 21, and a limiting member 24. A hook 211 is provided at the end of the base 21 away from the latch 23, which is used to hook the lower lock 3 to lock the box. A movable groove is provided inside the base 21, and one end of the latch 23 is located in the movable groove. The limiting member 24 abuts against the end of one end of the latch 23 and the inner sidewall of the movable groove. A lock groove 231 is provided at the other end of the latch 23, and a lock hook 221 is provided on the side of the flap 22 facing the latch 23 relative to the lock groove 231. When the box is locked, the lock hook 221 is locked in the lock groove 231.

[0025] The lower lock 3 is fixed to one side of the cabinet, and the flap 22 is fixed to the cabinet's opening and closing lid. When the cabinet lid is closed, the hook 211 on the base 21 aligns with the lower lock 3. Pressing the base 21 causes the locking hook 221 on the flap 22 to lock into the locking groove 231 on the latch 23, causing the base 21 to move closer to the lower lock 3 so that the hook 211 engages within the lower lock 3. To unlock, pressing the latch 23 causes it to slide along the movable groove to release the hook 221, separating the hook 221 from the latch 23. The base 21 and flap 22 open, and the hook 211 separates from the lower lock 3, thus opening the cabinet. The structure is simple and the operation is very convenient. The two sets of locking mechanisms work together to lock the cabinet, resulting in higher connection stability.

[0026] In some embodiments, please refer to Figure 3 , Figure 4 The base 21 includes a mounting base 212 and a fixing frame 213. The fixing frame 213 is provided inside the mounting base 212. The fixing frame 213 is open at one end facing the latch 23. One end of the latch 23 is slidably disposed in the fixing frame 213. The limiting member 24 abuts against the other side of the latch 23 and the fixing frame 213 to improve the efficiency of assembly and unlocking.

[0027] Preferably, the latch 23 includes a pressing block 232 and a lock body 233. The pressing block 232 is located on the outside of the mounting base 212, and the end of the lock body 233 away from the pressing block 232 is located inside the fixing frame 213 and abuts against the limiting member 24, facilitating automatic reset of the lock body 233. The width of the pressing block 232 is smaller than the width of the lock body 233, saving costs and limiting the sliding stroke of the pressing block 232. Specifically, the end of the pressing block 232 away from the lock body 233 is bent, making it easier for the user to unlock the lock by pushing the pressing block 232, resulting in a more effortless and convenient operation.

[0028] In some embodiments, please refer to Figure 2 , Figure 3 , Figure 4 The lock 2 also includes a key seat 25 disposed within the fixed frame 213. One end of the key seat 25 is located in a mounting hole at the bottom of the mounting base 212 and is provided with a keyhole 252. The other end of the key seat 25 is provided with an abutment portion 251. When the key seat 25 is in the locked state, the abutment portion 251 of the key seat 25 is in close contact with the end of the lock body 233. When the key seat 25 is in the open state, the abutment portion 251 of the key seat 25 is separated from the lock body 233, improving the stability of the structure when locked, effectively preventing the lock from automatically opening, and making unlocking simple and convenient.

[0029] Specifically, a mounting groove 2131 is provided on the bottom wall of the fixed frame 213. One end of the mounting groove 2131 for mounting the key seat 25 is circular. The other end of the mounting groove 2131 is located below the lock body 233 and is square, with its width being smaller than the diameter of the circular end of the mounting groove 2131. The abutment portion 251 of the rotated key seat 25 is located at the square end of the mounting groove 2131.

[0030] Two limiting blocks 234 are spaced apart on the side of the lock body 233 away from the pressing block 232. The abutment part 251 is a protruding arc-shaped structure. There are two abutment parts 251, which are spaced apart and symmetrically arranged along the central axis of the key seat 25. This facilitates rotation to abut the lock body 233, restricts the sliding of the lock body 233, and prevents the lock from unlocking automatically.

[0031] A gap is provided between the limiting block 234 and the fixing frame 213, and the limiting member 24 is disposed within the gap. The end of the limiting member 24 abuts against the lock body 233. The structure is compact, the installation stability is higher, and it can prevent spring displacement. Specifically, the limiting member 24 is located within the gap enclosed by the inner sidewall of the lock body 233, the limiting block 234, and the fixing frame 213, which can effectively prevent the limiting member 24 from deviating and improve the reset accuracy. In this embodiment, two limiting members 24 are provided, which makes the force more balanced and the reset effect better.

[0032] Specifically, the limiting component 24 is designed as a spring structure, which provides better elastic reset and lower cost.

[0033] In some embodiments, please refer to Figure 2 , Figure 4 The base 21 also includes a cover 214, which covers the periphery of the fixing frame 213. The cover 214 is used to seal the side of the fixing frame 213 facing the flip plate 22, thereby improving the stability of the installation structure.

[0034] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 3 The lock structure 1 also includes a rotating assembly 4, which includes a first rotating shaft 41 mounted on the base 21, a second rotating shaft 42 mounted on the flap 22, a connecting piece 43 connecting the first rotating shaft 41 and the second rotating shaft 42, and a torsion spring 44. The torsion spring 44 is fitted onto the first rotating shaft 41 and the second rotating shaft 42, with one end of the torsion spring 44 abutting against the base 21 and the other end abutting against the flap 22. This allows the base 21 to be pulled to lock the lower lock 3 when the flap 22 is locked onto the latch 23. The structure is simple and the operation is convenient and quick.

[0035] In use, the flap 22 is installed on the lid, and the lower lock 3 is installed on the cabinet. The lower lock 3 is hollow inside, with an opening on one side to allow the hook 211 to engage inside it. The opening is located on the side of the lower lock 3 away from the upper lock 2. When the lock structure 1 is in the unlocked state, the flap 22 is separated from the base 21, the torsion spring 44 is in its normal state, and the first rotating shaft 41 and the second rotating shaft 42 are misaligned. When locking is required, the mounting base 212 is pressed towards the lid. Under the rotation of the first rotating shaft 41, the mounting base 212 rotates towards the flap 22, compressing the torsion spring 44. Simultaneously, the locking hook 221 of the flap 22 engages in the locking groove 231. Driven by the mounting base 212, the hook 211 moves into the latch of the lower lock 3. The first rotating shaft 41 and the second rotating shaft 42 are misaligned, and the first rotating shaft 41 swings away from the lower lock 3. If it is necessary to lock the latch 23, insert the key 26 into the keyhole 252 and rotate the key seat 25 by 90° so that the abutment part 251 is facing the lock body 233 to prevent the lock body 233 from sliding.

[0036] When unlocking is required, if the key seat 25 is locked, rotate the key seat 25 in the opposite direction to 90°, causing the abutment 251 to separate from the lock body 233. Then, push the pressing block 232 towards the mounting base 212. The pressing block 232 pushes the lock body 233 and the pressing member into the movable groove, pressing the limiting member 24, and the lock hook 221 separates from the lock groove 231. Under the action of the torsion spring 44, the flap 22 separates from the base 21, thereby causing the latch 211 to move out of the opening of the lower lock 3, the upper lock 2 separates from the lower lock 3, the pressing block 232 is released, and the lock tongue 23 returns to its initial position under the action of the limiting member 24. At this point, unlocking is completed. The operation is simple, effortless, and very convenient to use, and the locking structure is very stable.

[0037] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A lock structure comprising an upper lock (2) and a lower lock (3), characterized in that, The locking mechanism (2) includes a base (21), a flap (22) rotatably connected to the base (21), a latch (23) inserted into one end of the base (21) and movably connected to the base (21), and a limiting member (24); a hook (211) is provided at the end of the base (21) away from the latch (23), the hook (211) being used to hook the lower lock (3) to lock the box; a movable groove is provided inside the base (21), so that... One end of the locking tongue (23) is located in the movable groove, and the limiting member (24) abuts against the end of one end of the locking tongue (23) and the inner sidewall of the movable groove; the other end of the locking tongue (23) is provided with a locking groove (231), and the side of the flap (22) facing the locking tongue (23) is provided with a locking hook (221) relative to the locking groove (231); when the box is locked, the locking hook (221) is locked in the locking groove (231).

2. The lock structure according to claim 1, wherein The base (21) includes a mounting base (212) and a fixing frame (213); the fixing frame (213) is provided inside the mounting base (212), the fixing frame (213) is open at one end facing the latch (23), one end of the latch (23) is slidably disposed in the fixing frame (213), and the limiting member (24) abuts against the other side of the latch (23) and the fixing frame (213).

3. The lock structure according to claim 2, wherein The latch (23) includes a pressing block (232) and a lock body (233); the pressing block (232) is located outside the mounting base (212), and the end of the lock body (233) away from the pressing block (232) is located inside the fixing frame (213) and abuts against the limiting member (24); the width of the pressing block (232) is smaller than the width of the lock body (233).

4. The lock structure according to claim 3, wherein The lock (2) also includes a key seat (25) disposed in the fixed frame (213). One end of the key seat (25) is located in the mounting hole at the bottom of the mounting base (212) and is provided with a keyhole (252). The other end of the key seat (25) is provided with an abutment part (251). When the key seat (25) is in the locked state, the abutment part (251) of the key seat (25) is in close contact with the end of the lock body (233). When the key seat (25) is in the open state, the abutment part (251) of the key seat (25) is separated from the lock body (233).

5. The lock structure according to claim 4, wherein The lock body (233) has two limiting blocks (234) spaced apart on the side away from the pressing block (232); the abutment part (251) is configured as a protruding arc-shaped structure, and there are two abutment parts (251), which are spaced apart and symmetrically arranged along the central axis of the key seat (25).

6. The lock structure according to claim 5, wherein A gap is provided between the limiting block (234) and the fixing frame (213), the limiting member (24) is disposed in the gap, and the end of the limiting member (24) abuts against the lock body (233).

7. The lockset configuration of claim 2, wherein, The base (21) also includes a cover (214), which covers the periphery of the fixing frame (213) and is used to seal the side of the fixing frame (213) facing the flip plate (22).

8. The lock structure according to claim 1, characterized in that, The lock structure also includes a rotating assembly (4), which includes a first rotating shaft (41) disposed on the base (21), a second rotating shaft (42) disposed on the flap (22), a connecting piece (43) connecting the first rotating shaft (41) and the second rotating shaft (42), and a torsion spring (44); the torsion spring (44) is fitted on the first rotating shaft (41) and the second rotating shaft (42), one end of the torsion spring (44) abuts against the base (21), and the other end of the torsion spring (44) abuts against the flap (22).

9. The lockset construction according to claim 1, wherein, The limiting member (24) is configured as a spring structure.

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