Side locking mechanism of high security lock

Abstract

The utility model discloses a high security lock's side locking mechanism relates to lock technical field, including lock shell, rotatable be equipped with the lock bladder in the lock shell, key and side locking mechanism, lock shell and lock bladder are equipped with side edge billiard hole, and lock bladder side edge billiard hole bottom is equipped with steel ball hole, and side locking mechanism contains the side edge billiard group of containing in two holes, the key handle side has the convex edge and recessed structure. When the key is inserted, the convex edge extends into the gap between the lock bladder and the lock shell, and the recessed structure drives the side edge billiard group to move radially, releases the side locking, and cooperates the front billiard subassembly and unlocks. Double locking of front and side, greatly promote the technical threshold of opening the door, radial cooperation locking is stable, key drive is accurate, and unlocking is reliable, only adds the hole position and the convex edge structure, adapts to the existing technology, and the cost is controllable, and it is convenient for mass production and extension.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, specifically to a side locking mechanism for a high-security lock. Background Technology

[0002] As a core component of security, locks directly determine the protective effect through their locking reliability and are widely used in homes, offices, transportation, and other fields. Most mainstream locks currently use a front pin tumbler locking mechanism, which locks the lock by engaging the front pin assembly inside the front pin holes of the lock case with the lock cylinder. When the key is inserted, it drives the front pin assembly to move and unlock the lock.

[0003] However, the single front pin tumbler locking structure has a shortcoming in protection: relying solely on the axial limiting of the front pins to lock the cylinder, criminals can manipulate the front pin components through technical means, resulting in insufficient anti-opening capability of the lock and difficulty in meeting the security requirements of high protection scenarios.

[0004] To improve the resistance of locks to technical unlocking, the industry urgently needs to add new locking dimensions to the traditional front locking mechanism to build multiple layers of protection. As a result, side locking mechanisms have become an important research and development direction for enhancing lock security. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides a side locking mechanism for a high-security lock.

[0006] The technical solution adopted by this utility model is: a side locking mechanism for a high-security lock, including a lock shell, a lock cylinder rotatably disposed within the lock shell, and a key. The lock shell is provided with a front pin hole and a front pin assembly, and also includes a side locking mechanism. The lock shell and lock cylinder are provided with side pin holes, and the bottom of the side pin holes of the lock cylinder is provided with a steel ball hole; The side locking mechanism includes a set of side pins housed within the side pin holes and the steel ball holes; The key body has a raised ridge extending along its length on its side, and a recessed structure is formed on the raised ridge for driving the side tumbler assembly; when the key is inserted into the lock cylinder, the raised ridge extends into the key gap between the lock cylinder and the lock case, and drives the side tumbler assembly to move radially through the recessed structure, so as to release the side lock of the lock cylinder.

[0007] Furthermore, the side ball assembly includes a side sealing bead, a side spring, a side middle ball, a side body, and a side steel ball arranged sequentially. The bottom of the main body on the side is provided with a lower support slope, and the middle of the lower support slope is provided with an arc-shaped concave surface that is adapted to the side steel ball; The upper end of the side body is provided with a first inclined surface and a second inclined surface, wherein the slope of the first inclined surface is greater than the slope of the second inclined surface. The bottom of the side impact point is provided with a third inclined surface that fits and abuts against the second inclined surface.

[0008] Furthermore, a retaining pin groove is provided inside the steel ball hole, and a retaining pin shaft is provided inside the retaining pin groove.

[0009] Furthermore, the end of the lock cylinder is provided with a positioning groove, and the key has a positioning part that engages with the positioning groove.

[0010] The beneficial effects of this utility model are: 1. Enhanced Anti-Technical Picking Capabilities: Traditional locks often rely solely on front pins for single-dimensional locking, making them vulnerable to manipulation by criminals. This solution adds a side locking mechanism to the front locking system, creating a dual-locking layout of "front + side." Picking the lock requires simultaneously breaking both independent locking structures, significantly raising the technical barrier to entry and effectively enhancing the lock's security level.

[0011] 2. High reliability of locking and unlocking: Side locking achieves locking through the radial engagement of the side pin holes on the lock case and cylinder, the cylinder ball holes, and the side pin group. The structure is stable and the limiting effect is reliable. When the key is inserted, the protruding ridge on the side of the key body can extend into the gap between the cylinder and the lock case. Its recessed structure can precisely drive the radial movement of the side pin group to complete the unlocking. The action is smooth and seamless, ensuring a stable locking state and precise unlocking operation.

[0012] 3. Adaptable to existing production processes, with controllable costs: The implementation of the side locking mechanism only requires adding side pin holes to the existing lock case and correspondingly machining steel ball holes in the lock cylinder, as well as designing convex and concave structures on the side of the key. No major adjustments are needed to the main shape of the lock case and lock cylinder, or the core production process. It is compatible with traditional lock production equipment and processes, reducing R&D and modification costs and facilitating mass production and promotion.

[0013] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The utility model will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0014] Figure 1 This is an exploded view of the present invention.

[0015] Figure 2 This is a schematic diagram of a key.

[0016] Figure 3 This is a cross-sectional schematic diagram of the present invention.

[0017] Figure 4This is a schematic diagram of the main body from the side.

[0018] Figure 5 This is a schematic diagram of the side ball assembly.

[0019] Figure 6 This is a schematic diagram of the lock cylinder structure.

[0020] Figure 1-6 1. Lock case; 2. Lock cylinder; 3. Key; 4. Front pin hole; 5. Front pin assembly; 6. Side pin hole; 7. Side ball hole; 8. Raised ridge; 9. Recessed structure; 10. Side sealing ball; 11. Side spring; 12. Side spring; 13. Side body; 14. Side ball; 15. Lower support slope; 16. Arc-shaped concave surface; 17. First slope; 18. Second slope; 19. Third slope; 20. Side pin assembly; 21. Stop pin groove; 22. Stop pin shaft; 23. Positioning groove; 24. Positioning part. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0023] This invention provides a side locking mechanism for a high-security lock.

[0024] In this embodiment, refer to Figure 1-6 The high-security lock's side locking mechanism includes a lock housing 1, a lock cylinder 2 rotatably disposed within the lock housing 1, and a key 3. The lock housing is provided with a front pin hole 4 and a front pin assembly 5, and also includes a side locking mechanism. The lock shell and lock cylinder are provided with side pin holes 6, and the bottom of the side pin holes of the lock cylinder is provided with steel ball holes 7; The side locking mechanism includes a side pin group 20 housed within the side pin holes and the steel ball holes; The key body has a protruding ridge 8 extending along its length on its side, and a recessed structure 9 is formed on the protruding ridge 8 for driving the side pin group; when the key is inserted into the lock cylinder, the protruding ridge extends into the key gap between the lock cylinder and the lock shell, and drives the side pin group to move radially through the recessed structure, so as to release the side lock of the lock cylinder.

[0025] In the aforementioned technical solution, this technology adds a side locking mechanism to the traditional structure. This is achieved by creating side pin holes on the lock shell and cylinder, and corresponding ball holes on the cylinder. The side pin assembly is housed within the radial space formed by these two holes, and the radial limiting of the pin assembly achieves side locking between the cylinder and the lock shell. A protruding ridge extending along the length of the key body is designed on its side. The recessed structure on the ridge matches the position of the side pin assembly. When the key is inserted into the cylinder, the ridge extends into the gap between the cylinder and the lock shell, and the recessed structure mechanically drives the side pin assembly to move radially, causing it to disengage from the double limiting state of the cylinder and lock shell, thus releasing the side lock. This, combined with the unlocking of the front pin assembly, allows the cylinder to rotate. This double locking creates three-dimensional protection, requiring criminals to simultaneously crack both independent locking structures, exponentially increasing the difficulty of opening the lock and significantly enhancing its security. Moreover, this is achieved simply by adding holes to the existing lock shell and cylinder and adding a protruding ridge to the side of the key, without modifying the main structure. It is compatible with traditional manufacturing processes, has low R&D and manufacturing costs, and is easy to mass-produce.

[0026] Specifically, the side ball assembly includes a side sealing bead 10, a side spring 11, a side middle ball 12, a side body 13, and a side steel ball 14 arranged sequentially. The bottom of the side body is provided with a lower support slope 15, and the middle part of the lower support slope is provided with an arc-shaped concave surface 16 that is adapted to the side steel ball. The upper end of the side body is provided with a first inclined surface 17 and a second inclined surface 18, and the slope of the first inclined surface is greater than the slope of the second inclined surface. The bottom of the side impact point is provided with a third inclined surface 19 that fits and abuts against the second inclined surface.

[0027] In this embodiment, a supporting slope is designed at the bottom of the side body. The arc-shaped concave surface in the middle of the slope precisely fits with the side steel ball, ensuring that the steel ball can slide smoothly along the concave surface when under force, avoiding jamming. The upper end of the side body is provided with first and second slopes with different inclinations. The second slope fits with the third slope at the bottom of the side ball. Because the first slope has a larger inclination, it can provide a "stepped" guide when the side ball moves. At the same time, the contact area between the second and third slopes is increased. The unique interlocking structure can effectively prevent the side ball from rotating during movement, ensuring that it always operates in the correct working posture and improving reliability.

[0028] Specifically, a retaining pin groove 21 is provided in the ball hole, and a retaining pin shaft 22 is provided in the retaining pin groove.

[0029] In this embodiment, a stop pin groove is added to the ball hole corresponding to the side ball on the side of the lock cylinder. The stop pin shaft is embedded in the stop pin groove to form an axial limiting structure. The stop pin shaft can limit the axial movement range of the side ball in the ball hole, preventing the ball from falling out of the hole due to long-term use or external force, while not affecting the radial fit between the ball and the side ball assembly.

[0030] Specifically, the end of the lock cylinder is provided with a positioning groove 23, and the key has a positioning part 24 that engages with the positioning groove.

[0031] In this embodiment, a positioning groove is provided at the end of the lock cylinder, and a positioning part that matches the positioning groove is provided on the key; when the key is inserted into the lock cylinder to a preset position, the positioning part and the positioning groove are precisely engaged, realizing the axial positioning of the key and the lock cylinder, ensuring that the key's protruding and recessed structures are precisely aligned with the positions of the side tumbler group, and providing a positioning reference for the driving of the side tumbler group.

[0032] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.

Claims

1. A side locking mechanism for a high-security lock, comprising a lock housing, a lock cylinder rotatably disposed within the lock housing, and a key, wherein the lock housing is provided with a front pin hole and a front pin assembly, characterized in that: It also includes a side locking mechanism. The lock shell and lock cylinder are provided with side pin holes, and the bottom of the side pin holes of the lock cylinder is provided with a steel ball hole; The side locking mechanism includes a set of side pins housed within the side pin holes and the steel ball holes; The key body has a raised ridge extending along its length on its side, and a recessed structure is formed on the raised ridge for driving the side tumbler assembly; when the key is inserted into the lock cylinder, the raised ridge extends into the key gap between the lock cylinder and the lock case, and drives the side tumbler assembly to move radially through the recessed structure, so as to release the side lock of the lock cylinder.

2. The side locking mechanism of the high-security lock according to claim 1, characterized in that: The side ball assembly includes a side sealing bead, a side spring, a side middle ball, a side body, and a side steel ball arranged in sequence. The bottom of the main body on the side is provided with a lower support slope, and the middle of the lower support slope is provided with an arc-shaped concave surface that is adapted to the side steel ball; The upper end of the side body is provided with a first inclined surface and a second inclined surface, and the slope of the first inclined surface is greater than the slope of the second inclined surface. The bottom of the side impact point is provided with a third inclined surface that fits and abuts against the second inclined surface.

3. The side locking mechanism of the high-security lock according to claim 1, characterized in that: A retaining pin groove is provided inside the ball hole, and a retaining pin shaft is provided inside the retaining pin groove.

4. The side locking mechanism of the high-security lock according to claim 1, characterized in that: The end of the lock cylinder is provided with a positioning groove, and the key has a positioning part that engages with the positioning groove.

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