A multi-specification notebook security lock

Abstract

The utility model discloses a kind of multi-specification notebook safety lock, including shell (1), shell (1) inside one end is provided with lock core stem (3), the other end is provided with lock clamp (2), middle section position is provided with driving head (7), the opening and closing size of lock clamp (2) is controlled by driving head (7), for locking different specification notebook. Driving head (7) has drive cavity, and the inner wall of drive cavity is equipped with multiple groups of different sizes drive edge, when driving head (7) is contacted with lock clamp (2) along axial direction, the opening and closing size of lock clamp (2) is controlled by different sizes drive edge, to match different notebook lock hole. Lock clamp (2) middle is provided with rotating pin and torsion spring, realize elastic clamping and automatic reset;Limiting stop and limiting groove cooperation are equipped between lock core stem (3) and driving head (7), guarantee stable and reliable stroke. The utility model structure is simple, and it is convenient to adjust, can be compatible with multiple notebook lock hole specifications, improve the versatility and use convenience of safety lock.

Description

Technical Field

[0001] This utility model relates to the field of laptop security protection, specifically to a multi-specification laptop security lock. Background Technology

[0002] With the widespread use of laptops in offices, schools, and public places, theft prevention and security have become key concerns for users. Currently, common laptop security locks typically achieve protection by inserting a locking clip into a security lock hole on the laptop body. However, different brands and models of laptops often use different specifications of security lock holes in their design, such as the traditional Kensington standard lock hole, the Dell Noble wedge lock hole, the Kensington Nano lock hole, and some other brands' lock holes, etc. These lock holes vary significantly in terms of hole diameter, shape, and insertion depth.

[0003] In existing technologies, most laptop security locks use a fixed opening and closing size or are controlled by a single mechanical drive structure. Due to their limited opening and closing stroke and fixed clamping angle, the following problems often arise when dealing with lock holes of different diameters: First, if the lock size is too large, it cannot be inserted into a small-diameter security hole; second, if the lock size is too small, it cannot reliably lock in a large-diameter structure; third, when there are slight differences in the shape of different laptop lock holes, fixed locks cannot guarantee a balanced clamping force, and are prone to loosening or falling off, resulting in a decrease in the laptop's anti-theft performance.

[0004] To accommodate the different lock hole structures of various laptop models, some improved security locks change the clamping width by replacing the lock head assembly or adjusting the extension stroke of the threaded rod. However, this type of structure is complex to operate, lacks versatility, and is not convenient for users to quickly switch between multiple devices. Furthermore, frequent replacement of the lock head or rotation of the adjusting parts can easily cause wear and tear on the lock cylinder and transmission structure, affecting its service life. Utility Model Content

[0005] To address the aforementioned issues, this utility model provides a multi-specification laptop security lock. This multi-specification laptop security lock features a simple structure and can automatically or adjustably control the opening and closing size of the lock clip according to different keyhole diameters. It eliminates the need for external adjustment components, simplifies the external structure, improves overall integrity, and enhances the aesthetic appeal of the design, effectively overcoming the shortcomings of existing technologies.

[0006] This utility model is achieved through the following technical solution: a multi-size laptop security lock, including a housing, a lock cylinder rod provided at one end of the housing, a lock clip provided at the other end of the housing, and a drive head provided in the middle section of the housing, which controls the opening and closing size of the lock clip to lock laptops of different sizes.

[0007] As a preferred technical solution, the drive head has a drive cavity, and the inner wall of the drive cavity has multiple sets of drive edges of different sizes. When the drive head contacts the lock clamp in the axial direction, the opening and closing size of the lock clamp is controlled by the drive edges of different sizes to match different lock holes.

[0008] As a preferred technical solution, a partition limiting block is provided at the middle position of the inner wall of the driving cavity.

[0009] As a preferred technical solution, the locking clamp is provided with a rotating pin in the middle, and a torsion spring is installed on the rotating pin. The locking clamp is elastically hinged to a mounting block through the rotating pin and the torsion spring, and the mounting block is fixedly installed in the housing.

[0010] As a preferred technical solution, the lock cylinder rod is provided with a limit stop, the drive head is provided with a limit groove, and the lock cylinder rod is positioned in the limit groove through the limit stop.

[0011] As a preferred technical solution, a guide sleeve is provided inside the housing, the guide sleeve is slidably installed inside the housing, and the lock cylinder rod passes through the guide sleeve;

[0012] A lock cylinder pin sleeve is also fitted on the lock cylinder rod located on one side of the guide shaft sleeve.

[0013] As a preferred technical solution, the end face of the lock cylinder pin sleeve is provided with one or more pin holes, and each pin hole is equipped with a lock cylinder copper pin.

[0014] As a preferred technical solution, a limiting step is provided on the bottom surface of each pinhole to limit one side of the lock cylinder copper pin and prevent it from slipping out.

[0015] As a preferred technical solution, the side of the locking clamp facing the driving head is provided with an inclined contact surface.

[0016] As a preferred technical solution, the housing is provided with multiple position markings on the end face of the drive end of the lock cylinder rod.

[0017] The beneficial effects of this utility model are as follows: By setting a drive cavity structure with multiple sets of drive edges of different sizes on the drive head, when the drive head contacts the lock clamp in the axial direction, the drive edges of different sizes can correspond to lock holes of different diameters, realizing multi-level adjustment of the lock clamp opening and closing size. Thus, one safety lock can be adapted to the safety lock holes of various brands and models of laptops, significantly improving versatility. Most importantly, this utility model does not require the addition of external adjustment parts. The specification adjustment can be completed using the internal structure of the lock cylinder rod. Compared with the methods on the market that require the addition of external adjustment parts, this utility model does not require the addition of external adjustment parts, simplifying the external structure, resulting in better overall integrity and a more concise and beautiful appearance. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal cross-section of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 4 This is a schematic diagram of the end face structure of the drive head of this utility model;

[0023] Figure 5 This is a structural schematic diagram of the lock cylinder pin sleeve position of this utility model;

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Housing; 3. Lock cylinder rod; 2. Lock clamp; 7. Drive head; 12. Drive side; 13. Partition limit block; 8. Rotating pin; 9. Mounting block; 11. Limit stop block; 10. Limit groove; 5. Guide bushing; 6. Inclined contact surface; 4. Position mark; 14. Lock cylinder pin sleeve; 15. Pin hole; 16. Limit step. Detailed Implementation

[0026] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0027] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0028] like Figures 1-4 As shown, this utility model provides a multi-specification notebook security lock. To make the technical solution of this utility model clearer, the following describes the utility model in detail with reference to embodiments. It should be noted that this embodiment is only used to illustrate the structural principle of this utility model and does not constitute a limitation on the scope of protection.

[0029] This utility model discloses a multi-specification laptop security lock, comprising a housing 1. The housing 1 is a hollow cylindrical structure with an internal through-channel for accommodating components such as a lock cylinder 3, a drive head 7, and a locking clip 2. One end of the housing 1 is the drive operation end, and the other end is the output end of the locking clip 2. During use, the user rotates or pushes the lock cylinder 3 located at the drive end, thereby actuating the transmission structure inside the housing 1 to control the opening and closing of the locking clip 2, thus locking the security lock holes of different laptop sizes. The outer surface of the housing 1 is made of metal, possessing good strength and pry resistance, ensuring the stability and security of the overall structure during use.

[0030] A lock cylinder rod 3 is provided at one end inside the housing 1. One end of the lock cylinder rod 3 is connected to a key lock cylinder or knob to provide axial or rotational driving force. The lock cylinder rod 3 is installed along the central axis inside the housing 1, and its outer wall is machined with a precision limiting block 11 structure to limit the range of movement of the lock cylinder rod 3 in the axial direction and prevent damage to internal components due to excessive pushing. The other end of the lock cylinder rod 3 passes through the guide sleeve 5 and is connected to the drive head 7. Under the push of the lock cylinder rod 3, the drive head 7 moves back and forth along the inner cavity of the housing 1 to drive the lock clamp 2.

[0031] like Figure 5 As shown, a lock cylinder pin sleeve 14 is also fitted on the lock cylinder rod located on one side of the guide bushing. The end face of the lock cylinder pin sleeve 14 is provided with one or more pin holes 15, each of which is equipped with a lock cylinder copper pin. The bottom surface of each pin hole is provided with a limiting step 16, which is used to limit one side of the lock cylinder copper pin to prevent it from slipping out.

[0032] A locking clip 2 is provided at the other end of the housing 1. The locking clip 2 consists of a pair of opposing metal clamping arms, the outer ends of which can be inserted into the security lock hole of the laptop body. The locking clip 2 is hinged to the mounting block 9 by a rotating pin 8 in the middle and works with a torsion spring to achieve automatic reset. The inner side of the locking clip 2, that is, the side that contacts the drive head 7, is machined with an inclined contact surface 6. When the drive head 7 is pushed axially, its end drive edge 12 interacts with the inclined contact surface 6, causing the locking clips 2 on both sides to gradually open; when pulled in the opposite direction, the torsion spring generates a reset force, causing the locking clip 2 to close again, thereby realizing insertion and removal control. This structure allows the locking clip 2 to open and close smoothly within a range of angles, with good clamping force and flexibility.

[0033] A drive head 7 is located in the middle section inside the housing 1. The drive head 7 is made of metal and has an annular sleeve structure with a drive cavity inside. Multiple sets of drive edges 12 of different sizes are evenly distributed on the inner wall of the drive cavity. These drive edges 12 are arranged in a stepped manner to form contact surfaces of different diameters. When the drive head 7 contacts the inclined contact surface 6 of the locking clip 2 along the axial direction, the different sizes of drive edges 12 correspond to different lock hole diameters. The user can adjust the position of the lock cylinder rod 3 to position the drive head 7 in different axial positions, thereby selecting the corresponding size of drive edge 12 to contact the locking clip 2, achieving multi-position control of the opening and closing size of the locking clip 2 to adapt to different specifications of laptop lock holes. For example, when the drive head 7 is in the first position, the opening angle of the locking clip 2 is small, suitable for thin and light laptops with small hole diameters; when the drive head 7 is in the second or third position, the range of action of the drive edge 12 increases, and the opening angle of the locking clip 2 expands accordingly, adapting to traditional laptop lock holes with larger hole diameters.

[0034] A partition limit block 13 is provided at the middle position of the inner wall of the drive cavity to serve as a positioning and limiting element between different gear positions. The partition limit block 13 divides the drive cavity into several functional areas, each corresponding to a different drive edge 12. When the drive head 7 is pushed to a specific position by the lock cylinder rod 3, the limit block and the limit stop block 11 form a mechanical locking structure, allowing the drive head 7 to remain stably in that gear position and preventing gear shifting due to vibration or external force. This limiting structure not only improves the accuracy of gear switching but also enhances the overall safety of use.

[0035] A rotating pin 8 is provided in the middle of the locking clip 2, passing through the middle of both locking clips 2 and serving as the rotation fulcrum of the locking clip 2. A torsion spring is installed on the rotating pin 8, with one end of the torsion spring fixed to the mounting block 9 and the other end connected to the locking clip 2. This torsion spring generates torque when the locking clip 2 is pushed open by the drive head 7, and can automatically return the locking clip 2 to the closed position after the drive is released. The mounting block 9 is fixedly installed on the inner wall of the housing 1 to support the locking clip 2 assembly, so that the entire locking clip 2 mechanism is kept in the correct working position at the outlet of the housing 1.

[0036] The lock cylinder rod 3 and the drive head 7 are precisely connected via a limiting block 11 and a limiting groove 10. The front end of the lock cylinder rod 3 has a limiting block 11, and the rear end of the drive head 7 has a corresponding limiting groove 10. When engaged, the lock cylinder rod 3 can drive the drive head 7 in a linear motion while preventing rotational misalignment. When the lock cylinder rod 3 moves axially to the bottom of the limiting groove 10, its maximum stroke is limited, ensuring that the lock clamp 2 is not over-opened and preventing structural damage due to mechanical interference.

[0037] To ensure smoother movement of the drive head 7 and reduce metal-to-metal friction, a guide sleeve 5 is provided inside the housing 1. The guide sleeve 5 is made of precision-machined metal or wear-resistant alloy material, and its inner hole mates with the lock cylinder rod 3, providing excellent sliding guidance performance. After passing through the guide sleeve 5, the lock cylinder rod 3 achieves smooth linear movement under its guidance, thereby making the displacement of the drive head 7 more precise and ensuring coordinated and stable opening and closing of the lock clamp 2. The use of the guide sleeve 5 also effectively extends the service life of the lock cylinder rod 3 and the housing 1, preventing wear on the inner walls caused by prolonged operation.

[0038] The locking clamp 2 has an inclined contact surface 6 on the side facing the drive head 7. This design allows the axial thrust of the drive head 7 at different positions to be smoothly converted into the radial opening and closing action of the locking clamp 2. The inclined angle is optimized according to the mechanical transmission principle, so that the drive head 7 only needs a small thrust to complete the opening operation of the locking clamp 2. This achieves a large clamping stroke in a compact structure, ensuring a firm lock while reducing the resistance during use.

[0039] To facilitate user selection of the appropriate lock position, the housing 1 has multiple position markings 4 on the drive end face of the lock cylinder 3. These markings, in the form of numbers or symbols, are engraved on the surface of the housing 1, corresponding to different opening and closing positions of the drive head 7. Users can align the markings with the corresponding markings according to the specifications of different laptop lock holes, and then complete the locking operation by rotating or pushing the lock cylinder 3 to the designated position. The process is intuitive and convenient.

[0040] This invention utilizes the multi-set drive edges 12 of the drive head 7 in conjunction with the inclined contact surface 6 of the lock clip 2, allowing the opening and closing size of the lock clip 2 to be adaptively adjusted according to the diameter of different laptop security lock holes. Combined with the limiting block 11, the partition limiting block 13, and the guide sleeve 5, it achieves precise positioning, smooth transmission, and reliable locking. This structure is not only highly compatible and widely applicable, but also convenient to operate and highly secure, effectively solving the technical problem that existing laptop security locks cannot adapt to different lock hole sizes due to the fixed opening and closing of the lock clip 2.

[0041] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A multi-specification notebook security lock characterized by, Includes a housing (1), with a lock cylinder rod (3) at one end inside the housing (1) and a lock clip (2) at the other end inside the housing (1). A drive head (7) is provided in the middle section inside the housing (1). The opening and closing size of the lock clip (2) is controlled by the drive head (7) to lock different sizes of notebooks.

2. The multi-spec notebook security lock of claim 1, wherein: The drive head (7) has a drive cavity, and the inner wall of the drive cavity has multiple sets of drive edges (12) of different sizes. When the drive head (7) contacts the lock clamp (2) in the axial direction, the opening and closing size of the lock clamp (2) is controlled by the drive edges (12) of different sizes to match different lock holes.

3. The multi-spec notebook security lock of claim 2, wherein: A partition limit block (13) is provided at the middle position of the inner wall of the drive cavity.

4. The multi-spec notebook security lock of claim 1, wherein: The locking clip (2) has a rotating pin (8) in the middle, and a torsion spring is installed on the rotating pin (8). The locking clip (2) is elastically hinged to a mounting block (9) through the rotating pin (8) and the torsion spring. The mounting block (9) is fixedly installed inside the housing (1).

5. The multi-spec notebook security lock of claim 1, wherein: The lock cylinder rod (3) is provided with a limit stop (11), and the drive head (7) is provided with a limit groove (10). The lock cylinder rod (3) is set in the limit groove (10) through the limit stop (11).

6. The multi-spec notebook security lock of claim 1, wherein: A guide sleeve (5) is provided inside the housing (1). The guide sleeve (5) is slidably installed inside the housing (1). The lock rod (3) passes through the guide sleeve (5). A lock cylinder pin sleeve is also fitted on the lock cylinder rod located on one side of the guide shaft sleeve.

7. The multi-spec notebook security lock of claim 6, wherein: The end face of the lock cylinder needle sleeve is provided with one or more needle holes, and each needle hole is equipped with a lock cylinder copper needle.

8. The multi-spec notebook security lock of claim 7, wherein: Each of the pinholes has a limiting step on its bottom surface to limit one side of the lock core copper pin and prevent it from slipping out.

9. The multi-spec notebook security lock of claim 1, wherein: The locking clip (2) has an inclined contact surface (6) on the side facing the drive head (7).

10. The multi-specification notebook security lock according to claim 1, characterized in that: The housing (1) is provided with multiple gear position markings (4) on the drive end face of the lock cylinder rod (3).

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