Folding lock

Abstract

The utility model discloses a folding lock which comprises a lock head body, a folding piece assembly and a locking mechanism. The end face of a lock shell of the lock body is provided with a first socket, the bottom of the lock body is provided with a second socket communicated with the first socket, and the first socket and the second socket form an L-shaped mortise lock channel. A plug at the tail end of the folding piece assembly is inserted from the bottom of the locking shell and extends to the end face along the L-shaped channel to complete locking. The locking mechanism drives the lock brake body to rotate through the lock cylinder, the first inserting opening is completely closed, and the side face and the outer end face of the lock shell are not opened. The folding piece assembly is formed by combining the long folding plates on the two sides and the short folding plate in the middle, the middle folding plate is contained in the containing cavity, and the structure is compact. In addition, the folding lock is provided with a detachable storage support, and stable fixation is achieved through an elastic limiting plate and a U-shaped connecting piece. The folding lock solves the problems that a lateral opening of a traditional folding lock is easy to pry, loose in structure and incomplete in appearance, and has high anti-theft performance, portability and attractiveness.

Description

Technical Field

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

[0002] Folding locks, as a type of portable lock, are widely used for security in bicycles, suitcases, lockers, and other scenarios due to their foldable and easy-to-carry characteristics. Traditional folding locks typically consist of several rigid sections connected by a hinge mechanism to form a chain-like structure. One end integrates a lock cylinder, and the other end has a plug. The locking function is achieved through the cooperation of the plug and the lock cylinder.

[0003] However, existing folding lock designs still have significant shortcomings in terms of practicality and security:

[0004] Anti-theft defects: Most folding locks use a side-insertion plug, which requires an opening on the side of the lock case to match the plug. This opening leaves a gap even after locking, becoming a weak point for thieves to pick the lock. Tools can easily reach inside the lock case and damage the locking mechanism, seriously threatening the anti-theft performance.

[0005] Limited appearance integrity: The side opening design results in obvious holes on the surface of the lock case, affecting the product's aesthetics. Furthermore, dirt can easily accumulate at the opening after long-term use, further accelerating structural aging.

[0006] To address the aforementioned issues, the industry urgently needs a folding lock that combines high anti-theft capabilities with aesthetic integrity. Summary of the Invention

[0007] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide a folding lock.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a folding lock, comprising a lock head body and a folding component assembly formed by sequentially hinged segments of rigid material. One end of the folding component assembly is fixedly connected to the lock head body, and the other end is provided with a plug. The lock head body includes a lock cylinder, a lock shell, and a locking mechanism linked to the lock cylinder. The end face of the lock shell is provided with a first insertion port, and the bottom is provided with a second insertion port communicating with the first insertion port. Together, they form an L-shaped locking channel composed of vertical and horizontal segments. The plug is located at the end of the folding component assembly and faces the lock head body. Its insertion direction is from the bottom of the lock shell through the second insertion port, extending along the L-shaped locking channel to the first insertion port on the end face to complete locking. The locking mechanism includes a rotatable locking gate. When the plug is fully inserted, the lock cylinder drives the locking gate to rotate, so that the opening of the first insertion port of the L-shaped locking channel is completely closed, and the second insertion port is the only opening on the bottom surface of the lock shell.

[0009] As a preferred technical solution of this utility model, the folding component assembly includes folding plates that are hinged together end to end in sequence, wherein the length of the folding plates on both sides is greater than that of the middle folding plates, and the middle folding plates are housed in a storage cavity formed by the lock body and the folding plates on both sides.

[0010] As a preferred embodiment of this utility model, the lock gate body is disposed inside the lock housing and is circumferentially linked with the lock cylinder. The end face of the lock gate body is provided with a locking groove, and one side of the locking groove extends to the edge to form a plug inlet. The plug includes a lock block and a connecting rod that are adapted to the shape of the locking groove. When the plug inlet of the lock gate body is rotated to align with the position of the second socket, the lock block and the connecting rod can enter the locking channel through the second socket, and the other end of the connecting rod passes through the first socket. When the plug inlet of the lock gate body is rotated to be misaligned with the position of the second socket, the plug inlet is blocked by the inner wall of the lock housing, so that the lock block is confined within the locking channel.

[0011] As a preferred embodiment of this utility model, the lock cylinder end face is provided with an axial linkage protrusion, and the lock gate body is provided with an insertion hole on the side facing the lock cylinder that is clearance-fitted with the linkage protrusion.

[0012] As a preferred technical solution of this utility model, it also includes a storage bracket adapted to the shape of the folding lock. The storage bracket includes a bottom frame, a connecting frame disposed on one side of the bottom frame, and an elastic limiting plate located on the upper part of the connecting frame. The elastic limiting plate is at least partially elastically deformable, and its inner wall abuts against the upper part of the folding lock.

[0013] As a preferred embodiment of this utility model, the connecting frame is provided with connecting ears on both sides, and a U-shaped connector that is detachably connected to the connecting ears on both sides.

[0014] As a preferred embodiment of this utility model, the lock cylinder is a pin tumbler lock cylinder or a leaf lock cylinder.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] With its L-shaped locking channel and unique bottom opening, the plug is inserted vertically from the bottom of the lock case. After locking, the lock gate rotates to completely seal the first insertion port on the end face, eliminating the risk of prying locks with traditional side openings. This prevents thieves from entering the lock case with tools. Furthermore, the lock case has no holes on its sides and outer end face, and its surface is smooth and clean, making it less prone to dust accumulation and aging over long-term use.

[0017] The folding component features a nested design with long folding plates on both sides and a short folding plate in the middle, resulting in a small overall size when folded and easy to carry. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of this utility model without the outer folding plate;

[0020] Figure 3 This is a schematic diagram of the lock body in this utility model;

[0021] Figure 4 This is a schematic diagram of the cooperation between the lock cylinder and the locking structure in this utility model;

[0022] Figure 5 This is a cross-sectional view of the present invention;

[0023] Figure 6 yes Figure 5 A magnified view of part A;

[0024] Figure 7 This is a schematic diagram of the structure of one of the outer folding plates in this utility model.

[0025] Reference numerals: 1. Lock body; 2. Folding component assembly; 3. Plug; 4. Lock cylinder; 5. Lock shell; 6. Locking mechanism; 7. First socket; 8. Second socket; 9. Lock gate body; 10. Folding plate; 11. Storage cavity; 12. Locking groove; 13. Plug inlet; 14. Lock block; 15. Connecting rod; 16. Elastic limiting plate; 17. Linkage protrusion; 18. Socket; 19. Storage bracket; 20. Base frame; 21. Connecting frame; 22. U-shaped connector. Detailed Implementation

[0026] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0027] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0028] like Figures 1 to 7The folding lock shown includes a lock head body 1 and a folding component assembly 2 formed by hinged joints of several rigid material segments. One end of the folding component assembly 2 is fixedly connected to the lock head body 1, and the other end is provided with a plug 3. The lock head body 1 includes a lock cylinder 4 (the lock cylinder 4 is either a pin tumbler lock cylinder 4 or a leaf lock cylinder 4, which is prior art and therefore not described in detail), a lock shell 5, and a locking mechanism 6 that is linked to the lock cylinder 4. The lock shell 5 has a first insertion port 7 on its end face and a second insertion port 8 at its bottom that communicates with the first insertion port 7. Together, they form an L-shaped locking channel consisting of a vertical segment and a horizontal segment. The plug 3 is located at the end of the folding component assembly 2 and faces the lock head body 1. Its insertion direction is from the bottom of the lock shell 5 through the second insertion port 8 and extends along the L-shaped locking channel to the first insertion port 8 on the end face. The locking mechanism 6 includes a rotatable locking gate 9. When the plug 3 is fully inserted, the lock cylinder 4 drives the locking mechanism 6 to rotate, so that the opening of the first insertion port 7 of the L-shaped mortise lock channel is completely closed, and the second insertion port 8 is the only opening on the bottom surface of the lock shell 5. It should be noted that in actual assembly, the plug 3 is positioned first, and then the folding plate 10 in the middle part is folded. Unlike the traditional side-mounted design (the plug 3 and the folding action are performed simultaneously), this solution ensures the alignment accuracy of the L-shaped mortise lock channel by prioritizing the fixing of the insertion position of the plug 3, and avoids the outer folding plate 10 from not being able to enter. In addition, the length of the middle folding plate 10 is shorter than that of the outer folding plate 10, so that it is completely contained in the storage cavity 11 after folding, avoiding interference with the lock shell 5 or the plug 3.

[0029] With its L-shaped locking channel and unique bottom opening, the plug 3 is inserted vertically from the bottom of the lock housing 5. After locking, the lock gate 9 rotates to completely seal the first insertion port 7 on the end face, eliminating the risk of prying locks with traditional side openings. This prevents thieves from entering the lock housing 5 with tools. Furthermore, the lock housing 5 has no holes on its sides and outer end face, and its surface is smooth and clean, making it less prone to dust accumulation and aging over long-term use.

[0030] The folding component assembly 2 includes folding plates 10 that are hinged together end to end in sequence. The length of the folding plates 10 on both sides is greater than that of the middle folding plates 10. The middle folding plates 10 are housed in the storage cavity 11 formed by the lock body 1 and the folding plates 10 on both sides. The existing technology is relatively mature in how the folding components are connected end to end. When unfolded, they form a long chain. A damping structure can be set between adjacent folding plates 10 (damping pads or screw fastening can be used).

[0031] The lock body 9 is located inside the lock housing 5 and is circumferentially linked with the lock cylinder 4. The end face of the lock body 9 has a locking groove 12, and one side of the locking groove 12 extends to the edge to form the entrance of the plug 3. The plug 3 includes a lock block 14 that is adapted to the shape of the locking groove 12 and a connecting rod 15. When the entrance of the plug 3 of the lock body 9 is rotated to be aligned with the position of the second socket 8, the lock block 14 and the connecting rod 15 can enter the locking channel through the second socket 8, and the other end of the connecting rod 15 passes through the first socket 7. When the entrance of the plug 3 of the lock body 9 is rotated to be misaligned with the position of the second socket 8, the entrance of the plug 3 is blocked by the inner wall of the lock housing 5, so that the lock block 14 is confined within the locking channel.

[0032] The lock cylinder 4 has an axial linkage protrusion 17 on its end face. The lock gate body 9 has a socket 18 on the side facing the lock cylinder 4 that is clearance-fitted with the linkage protrusion 17. The lock cylinder 4 can drive the lock gate body 9 to rotate and adjust the position of the plug 3 entrance of the lock gate body 9.

[0033] It also includes a storage bracket 19 adapted to the shape of the folding lock. The storage bracket 19 includes a base frame 20, a connecting frame 21 located on one side of the base frame 20, and an elastic limiting plate 16 located on the upper part of the connecting frame 21. The elastic limiting plate 16 (made of elastic plastic) is at least partially elastically deformable, and its inner wall abuts against the upper part of the folding lock. The folding component 2 adopts a nested storage design with long folding plates 10 on both sides and a short folding plate 10 in the middle. After folding, the overall volume is small and easy to carry.

[0034] The connecting frame 21 has connecting ears on both sides, and a U-shaped connector 22 that can be detachably connected to the connecting ears on both sides (by magnetic attraction, snap-fit ​​connection or fastener connection, etc.).

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples of this utility model and are not intended to limit it. Various changes and modifications can be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A folding lock, comprising a lock head body (1) and a folding component assembly (2) formed by sequentially hinged segments of rigid material, wherein one end of the folding component assembly (2) is fixedly connected to the lock head body (1), and the other end is provided with a plug (3); the lock head body (1) comprises a lock cylinder (4), a lock shell (5), and a locking mechanism (6) linked with the lock cylinder (4), characterized in that: The lock housing (5) has a first socket (7) on its end face and a second socket (8) at its bottom that communicates with the first socket (7). Together, they form an L-shaped locking channel consisting of a vertical section and a horizontal section. The plug (3) is located at the end of the folding component assembly (2) and faces the lock head body (1). Its insertion direction is from the bottom of the lock housing (5) through the second socket (8) and extends along the L-shaped locking channel to the first socket (7) on the end face to complete the locking. The locking mechanism (6) includes a rotatable lock gate body (9). When the plug (3) is fully inserted, the lock cylinder (4) drives the lock gate body (9) to rotate, so that the opening of the first socket (7) of the L-shaped locking channel is completely closed, and the second socket (8) is the only opening on the bottom surface of the lock housing (5).

2. The folding lock according to claim 1, characterized in that: The folding component assembly (2) includes folding plates (10) that are hinged together end to end in sequence. The length of the folding plates (10) on both sides is greater than that of the middle folding plates (10), and the middle folding plates (10) are housed in a storage cavity (11) formed by the lock body (1) and the folding plates (10) on both sides.

3. The folding lock according to claim 1, characterized in that: The lock body (9) is disposed inside the lock shell (5) and is circumferentially linked with the lock cylinder (4). The end face of the lock body (9) is provided with a locking groove (12) and one side of the locking groove (12) extends to the edge to form a plug (3) entrance. The plug (3) includes a lock block (14) adapted to the shape of the locking groove (12) and a connecting rod (15). When the plug (3) entrance of the lock body (9) is rotated to be aligned with the position of the second socket (8), the lock block (14) and the connecting rod (15) can enter the locking channel through the second socket (8), and the other end of the connecting rod (15) passes through the first socket (7). When the plug (3) entrance of the lock body (9) is rotated to be misaligned with the position of the second socket (8), the plug (3) entrance is blocked by the inner wall of the lock shell (5), so that the lock block (14) is limited to the locking channel.

4. The folding lock according to claim 3, characterized in that: The lock cylinder (4) end face is provided with an axial linkage protrusion (17), and the lock gate body (9) is provided with an insertion hole (18) on the side facing the lock cylinder (4) that is clearance-fitted with the linkage protrusion (17).

5. The folding lock of claim 1, wherein: It also includes a storage bracket (19) adapted to the shape of the folding lock. The storage bracket (19) includes a base frame (20), a connecting frame (21) located on one side of the base frame (20), and an elastic limiting plate (16) located on the upper part of the connecting frame (21). The elastic limiting plate (16) is at least partially elastically deformable, and its inner wall abuts against the upper part of the folding lock.

6. The folding lock according to claim 5, characterized in that: The connecting frame (21) is provided with connecting ears on both sides, and a U-shaped connector (22) that can be detachably connected to the connecting ears on both sides.

7. The folding lock of claim 1, wherein: The lock cylinder (4) is either a pin tumbler lock cylinder (4) or a leaf lock cylinder (4).

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