Lock cylinder anti-drilling structure capable of preventing damage caused by exposure of lock cylinder
By designing an anti-drilling plate and transmission components on the outside of the lock cylinder, the problem of exposed lock cylinders being easily damaged is solved, achieving efficient protection and improved security of the lock.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU DAHUA LOCKS FACTORY
- Filing Date
- 2025-02-12
- Publication Date
- 2026-05-05
AI Technical Summary
The exposed parts of existing lock cylinders lack effective protection and are easily damaged by drilling, resulting in a decline in the anti-theft performance of locks and affecting user safety and social order.
A structure including a lock cylinder body, a shell, a cover, an anti-drilling plate, and a transmission assembly is designed. The anti-drilling plate is moved by a drive unit to prevent the lock cylinder from being exposed. Combined with a manual or electronically controlled adjustment assembly, the lock cylinder is protected.
It effectively prevents the lock cylinder from being exposed and damaged, improves the anti-theft performance of the lock, enhances user safety and structural stability, and adapts to different indoor and outdoor usage scenarios.
Smart Images
Figure CN224200397U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lock cylinder technology, and more specifically, to a lock cylinder anti-drilling structure that can prevent damage from the exposed parts of the lock cylinder. Background Technology
[0002] With social development and increased public awareness of security, locks are increasingly used in daily life, and their security has become a major concern. The lock cylinder, as the core component of a lock, plays a crucial role in preventing theft. However, many lock cylinders on the market today have obvious design flaws, with their exposed parts lacking effective protective measures.
[0003] In real-world applications, this flaw presents numerous security risks. Criminals often exploit the exposed lock cylinder by drilling or other means to damage it. Once the lock cylinder is drilled, its internal structure is damaged, significantly reducing the lock's anti-theft performance and allowing criminals to easily open it, seriously threatening the user's property. This security problem caused by the exposed lock cylinder not only results in economic losses for individuals but also, to some extent, affects social security and stability.
[0004] Therefore, a lock cylinder anti-drilling structure is proposed to prevent damage from the exposed lock cylinder. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a lock cylinder anti-drilling structure that can prevent damage from the exposed lock cylinder, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a lock cylinder anti-drilling structure that prevents damage from the exposed lock cylinder, comprising a lock cylinder body, an outer shell connected to the outside of the lock cylinder body, a shell cover installed on the outer shell, an external through hole opened on the shell cover opposite the lock cylinder body, a mating groove formed between the outer shell and the shell cover, two guide blocks symmetrically installed on the outer shell at the bottom of the mating groove, the two guide blocks being slidably connected to an anti-drilling plate, the anti-drilling plate being engaged with a transmission assembly rotatably installed inside the outer shell, and the transmission assembly being connected to a drive unit.
[0007] Preferably, the bottom end of the anti-drill plate has two symmetrical sliding grooves, each of which is slidably connected to a corresponding guide block. One of the sliding grooves has a toothed plate inside, which is meshed with the transmission assembly.
[0008] Preferably, the transmission assembly includes a rack, a rotating rod, and a spring. The rack is meshed with a gear plate and coaxially connected to the rotating rod. A cylindrical groove is provided inside the housing. The rack is inserted into the cylindrical groove, and a spring is sleeved on the rotating rod, with the spring located inside the cylindrical groove.
[0009] Preferably, the drive unit is a manual adjustment assembly, which includes a turntable, a rod, and an adjustment knob. The turntable is coaxially mounted on the end of the rod, two rods are symmetrically mounted on the inner side of the turntable, and an adjustment knob is mounted on the outer side of the turntable.
[0010] Preferably, the outer casing has symmetrically provided slots, and the insert rod is inserted into the slot.
[0011] Preferably, the drive unit is an electrical control box, which contains a motor connected to the rotating rod. The motor is connected to a signal receiving and driving module located inside the electrical control box, and the key equipped with the corresponding lock cylinder body is equipped with a remote control module.
[0012] The technical effects and advantages of this utility model are as follows:
[0013] 1. The drive unit drives the transmission components, causing the anti-drilling plate to move above the lock cylinder body under the guidance of the guide block to block and protect it, preventing the lock cylinder from being exposed and damaged.
[0014] 2. The stability and reliability of the structure are ensured by the cooperation of the gear, rotating rod and spring in the transmission assembly, the insertion and locking of the plug and slot in the manual adjustment assembly, and the design of the motor and related modules in the electrical control box. This allows the anti-drill plate to effectively play its protective role and is not easily damaged or misoperated. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model.
[0017] Figure 3 This is a schematic diagram of the surface mounting structure of the outer shell of this utility model.
[0018] Figure 4 This is a schematic diagram of the connection structure between the manual adjustment component and the transmission component in Embodiment 1 of this utility model.
[0019] Figure 5 This is a schematic diagram of the connection structure between the electrical control box and the transmission assembly in Embodiment 2 of this utility model.
[0020] The attached diagram is labeled as follows: 1. Lock cylinder body; 2. Outer shell; 3. Shell cover; 4. External through hole; 5. Insertion slot; 6. Anti-drilling plate; 7. Transmission assembly; 701. Gear; 702. Rotating rod; 703. Spring; 8. Manual adjustment assembly; 801. Turntable; 802. Insertion rod; 803. Adjustment knob; 9. Guide block; 10. Slide groove; 11. Gear plate; 12. Electrical control box. Detailed Implementation
[0021] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Example 1
[0023] As attached Figures 1-4 As shown, the lock cylinder anti-drilling structure provided in this embodiment to prevent damage from the exposed lock cylinder includes a lock cylinder body 1, an outer shell 2 connected to the outside of the lock cylinder body 1, a shell cover 3 installed on the outer shell 2, an external through hole 4 opened on the shell cover 3 opposite to the lock cylinder body 1, a mating groove 5 formed between the outer shell 2 and the shell cover 3, two guide blocks 9 symmetrically installed on the outer shell 2 at the bottom of the mating groove 5, the two guide blocks 9 are slidably connected to an anti-drilling plate 6, the anti-drilling plate 6 is engaged with a transmission assembly 7 rotatably installed inside the outer shell 2, and the transmission assembly 7 is connected to a drive unit.
[0024] In practice, the drive unit drives the transmission assembly 7 to rotate, thereby moving the toothed plate 11 on the core anti-drilling plate 6. Under the guidance of the guide block 9, the anti-drilling plate 6 can move above the lock cylinder body 1 to block and protect the lock cylinder body 1, thereby preventing it from being exposed and thus avoiding damage to the lock cylinder.
[0025] Two sliding grooves 10 are symmetrically opened at the bottom end of the anti-drilling plate 6. Each sliding groove 10 is slidably connected to the corresponding guide block 9. A toothed plate 11 is provided on the inner side of one of the sliding grooves 10, and the toothed plate 11 is engaged with the transmission assembly 7.
[0026] The transmission assembly 7 includes a rack 701, a rotating rod 702, and a spring 703. The rack 701 is meshed with the gear plate 11, and the rotating rod 702 is coaxially connected to the rack 701. A cylindrical groove is provided inside the outer shell 2, and the rack 701 is inserted into the cylindrical groove. The spring 703 is sleeved on the rotating rod 702 and is located inside the cylindrical groove.
[0027] The drive unit is a manual adjustment component 8, which includes a turntable 801, a rod 802, and an adjustment knob 803. The turntable 801 is coaxially mounted at the end of the rod 702. Two rods 802 are symmetrically installed on the inner side of the turntable 801, and an adjustment knob 803 is installed on the outer side of the turntable 801. Slots are symmetrically opened on the outer shell 2, and the rods 802 are inserted into the slots.
[0028] In practice, the user pulls the adjustment knob 803 from inside the room, compressing the spring 703 and causing the insertion rod 802 on the turntable 801 to be pulled out of the slot. Then, rotating the adjustment knob 803 causes the turntable 702 to rotate, which in turn causes the gear 701 to rotate. When the gear 701 rotates, it generates a meshing force on the gear plate 11, which allows the anti-drilling plate 6 to move towards the insertion slot 5 under the guidance of the two guide blocks 9. This seals the lock cylinder body 1, preventing it from being exposed, and aligns the insertion rod 802 with the slot. Releasing the adjustment knob 803 releases the potential energy of the spring 703, allowing the insertion rod 802 to be inserted into the slot, locking the rotation of the gear 701. This prevents the anti-drilling plate 6 from being easily pried open, thereby improving the protective performance of the lock cylinder. In this way, this structure allows for manual protection of the lock cylinder when someone is inside, preventing it from being exposed and damaged, thus improving the safety of people inside the room.
[0029] Example 2
[0030] like Figure 5 As shown, the lock cylinder anti-drilling structure provided in this embodiment 2, which can prevent damage from the exposed lock cylinder, differs from that in embodiment 1 in that the drive unit is an electric control box 12, and the electric control box 12 is equipped with a motor connected to the rotating rod 702. The motor is connected to a signal receiving and driving module located inside the electric control box 12, and the key equipped with the corresponding lock cylinder body 1 is equipped with a remote control module.
[0031] In practice, when using the key, pressing the electronic control switch on the key causes the remote control module to send a signal, which in turn causes the signal receiving and drive module to receive the instruction, thus enabling the motor to work. When the motor is running, the transmission component 7 rotates, causing the anti-drill plate 6 to move, thereby controlling the opening and closing of the external through hole 4. This allows for easy protection of the lock cylinder whether the user is indoors or outdoors, preventing it from being exposed and damaged, and further improving the protection capability.
[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A lock cylinder anti-drilling structure that prevents damage from the exposed lock cylinder, comprising a lock cylinder body (1), characterized in that: The lock cylinder body (1) is connected to an outer shell (2) on the outside. A shell cover (3) is installed on the outer shell (2). An external through hole (4) is opened on the shell cover (3) opposite to the lock cylinder body (1). A mating groove (5) is formed between the outer shell (2) and the shell cover (3). Two guide blocks (9) are symmetrically installed on the outer shell (2) at the bottom of the mating groove (5). The two guide blocks (9) are slidably connected to an anti-drilling plate (6). The anti-drilling plate (6) is engaged with a transmission assembly (7) rotatably installed inside the outer shell (2). The transmission assembly (7) is connected to a drive unit.
2. The lock cylinder anti-drilling structure according to claim 1, which prevents damage from the exposed lock cylinder, is characterized in that: The anti-drilling plate (6) has two symmetrically opened sliding grooves (10) at the bottom end. Each sliding groove (10) is slidably connected to the corresponding guide block (9). A toothed plate (11) is provided on the inner side of one of the sliding grooves (10). The toothed plate (11) is meshed with the transmission assembly (7).
3. The lock cylinder anti-drilling structure according to claim 2, which prevents damage from the exposed lock cylinder, is characterized in that: The transmission assembly (7) includes a rack (701), a rotating rod (702), and a spring (703). The rack (701) is meshed with the gear plate (11). The rack (701) is coaxially connected to the rotating rod (702). A cylindrical groove is provided inside the outer shell (2). The rack (701) is inserted into the cylindrical groove. A spring (703) is sleeved on the rotating rod (702). The spring (703) is located in the cylindrical groove.
4. The lock cylinder anti-drilling structure according to claim 3, which prevents damage from the exposed lock cylinder, is characterized in that: The drive unit is a manual adjustment assembly (8), which includes a turntable (801), a rod (802) and an adjustment knob (803). The turntable (801) is coaxially mounted at the end of the rod (702). Two rods (802) are symmetrically mounted on the inner side of the turntable (801), and an adjustment knob (803) is mounted on the outer side of the turntable (801).
5. The lock cylinder anti-drilling structure according to claim 4, which prevents damage from the exposed lock cylinder, is characterized in that: The outer shell (2) has symmetrical slots, and the insert rod (802) is inserted into the slot.
6. The lock cylinder anti-drilling structure according to claim 3, which prevents damage from the exposed lock cylinder, is characterized in that: The drive unit is an electrical control box (12), which is equipped with a motor connected to the rotating rod (702). The motor is connected to a signal receiving and driving module located inside the electrical control box (12). The key equipped with the corresponding lock cylinder body (1) is equipped with a remote control module.