Anti-drill lock cylinder

Abstract

The utility model discloses a kind of anti-drilling lock cylinder, involve lock cylinder technical field.The utility model includes lock shell, two lock body, clutch, several pin mechanism, lock shell anti-drilling sheet, lock body anti-drilling sheet and reinforcing pad head, lock shell includes integrally connected fixed edge and two lock sleeve, lock body is equipped with keyhole, fixed edge both ends are equipped with preset mouth, preset mouth is the strip-shaped groove of section T, the small width side of preset mouth faces outward.The utility model is equipped with lock shell anti-drilling sheet in the fixed edge end portion of lock shell, realize the firm protection to lock cylinder side wing, lock body anti-drilling sheet is set in lock body end portion, fundamentally solve the security crisis at lock body position, by the design of reinforcing pad head, even in worst case, the core transmission function of lock can be last, most effective protection, three aspects of anti-drilling system, to effectively improve the overall security level of lock.

Description

Technical Field

[0001] This utility model belongs to the field of lock cylinder technology, and in particular relates to an anti-drill lock cylinder. Background Technology

[0002] As the most widely used security product, mechanical pin tumbler locks have always faced two major challenges in their core security performance: technical opening and forced entry. Among them, forced drilling attacks using portable electric drills have become one of the main violent means of threatening lock security due to their strong destructive power and high speed.

[0003] The existing lock cylinder structure has serious defects and gaps in anti-drilling capabilities, specifically: The keyhole (lock cylinder entrance) is completely unprotected, making it the weakest point against drilling. Currently, the vast majority of lock cylinders are made of brass or zinc alloy, which have relatively low hardness. Attackers do not need any skills; they can simply aim a drill bit at the keyhole and easily drill in, taking advantage of the drill bit's much higher hardness than the cylinder material. Once the front of the cylinder is destroyed, the first row of pins is damaged, creating conditions for subsequent technical manipulation or direct damage to the clutch. In short, an unprotected keyhole is like an undefended door.

[0004] The exposed structure of the side of the lock case (pin hole channel) provides a possibility for "bypass" drilling attacks. The strip channel on the lock case used to install pins is a through weak area. Attackers can completely bypass the front of the lock cylinder and directly drill through this strip area from the side, destroying the entire row of pins along with the lock cylinder structure. Existing technology generally ignores this attack path, making the "side" of the lock completely exposed.

[0005] In summary, existing lock cylinders have deficiencies in their anti-drilling design, namely, the lack of protection at the front entrance and the absence of defense at the side passages. Their anti-drilling capability is poor and they cannot cope with the current simple and brutal electric drill attacks. Summary of the Invention

[0006] The purpose of this utility model is to provide an anti-drilling lock cylinder. By setting an anti-drilling plate on the fixed edge of the lock shell, robust protection is achieved for the side wings of the lock cylinder. By setting an anti-drilling plate on the end of the lock cylinder, the security crisis at the lock cylinder position is fundamentally solved. Through the design of the reinforced pad, the core transmission function of the lock is ensured to receive the final and most effective protection even in the worst case. The three-pronged anti-drilling system constructs a multi-layered, all-round, and in-depth three-dimensional protection network for the mechanical lock cylinder at low cost, thereby effectively improving the overall security level of the lock.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is an anti-drilling lock cylinder, including a lock shell, two lock cylinder bodies, a clutch, several pin mechanisms, an anti-drilling plate for the lock shell and an anti-drilling plate for the lock cylinder. The lock shell includes an integrally connected fixed edge and two lock cylinder sleeves. The lock cylinder body is provided with a keyhole. The fixed edge has preset openings at both ends. The preset opening is a T-shaped groove with the narrowest side facing outward. The top of the preset opening is connected to the lock sleeve. The two sides of the preset opening are closed sides and the bottom is a closed end. The lock case anti-drilling plate is composed of an outer decorative panel with a T-shaped cross section and an inner anti-drilling plate arranged in a stacked manner. The lock case anti-drilling plate is installed in a preset opening with the outer decorative panel facing outward. The outer end of the lock cylinder has a strip-shaped through-hole, and the lock cylinder anti-drilling plate is installed in the through-hole. The lock cylinder anti-drilling plate has a clearance groove that is opposite to the keyhole position.

[0008] Furthermore, it also includes a reinforcing pad, wherein the inner end of the lock cylinder has a deepened opening that communicates with the keyhole, and the reinforcing pad is movably disposed within the deepened opening.

[0009] Furthermore, the two lock cylinders are respectively installed inside the two lock cylinder sleeves of the lock housing, the clutch is located between the reinforcing pads of the two lock cylinders, and a dial that cooperates with the clutch is provided between the two lock cylinder sleeves.

[0010] Furthermore, both sides of the fixed edge are provided with a plurality of external pin holes linearly, and the peripheral side of the lock cylinder is provided with a plurality of internal pin holes communicating with the keyhole. The pin mechanism is disposed in the external pin holes of the fixed edge and the internal pin holes of the lock cylinder.

[0011] Furthermore, both the outer trim panel and the inner anti-drilling plate have an arc-shaped opening at their top ends, and the arc-shaped opening is flush with the inner wall of the lock cylinder sleeve.

[0012] Furthermore, the fixed edge away from the lock sleeve is a semi-circular arc edge, the bottom end of the preset opening is a circular arc opening concentric with the arc edge, and the bottom ends of the outer trim panel and the inner anti-drill plate are arc-shaped ends that cooperate with the circular arc opening.

[0013] Furthermore, both ends of the anti-drilling plate of the lock cylinder are provided with arc-shaped structures that are flush with the peripheral side of the lock cylinder body.

[0014] This utility model has the following beneficial effects: This invention provides robust protection for the lock cylinder's sides by installing a lock shell anti-drilling plate at the fixed edge of the lock shell, eliminating the risk of side attacks. By installing a lock cylinder anti-drilling plate at the end of the lock cylinder, it acts like a helmet for the keyhole, preventing drill bits from penetrating smoothly and fundamentally solving the security crisis at the lock cylinder location. The reinforced pad design ensures that even in the worst-case scenario, the core transmission function of the lock receives the final and most effective protection, significantly raising the threshold for forced entry. This three-pronged anti-drilling system constructs a multi-layered, all-round, and in-depth three-dimensional protection network for the mechanical lock cylinder at low cost, making electric drill attacks extremely difficult at every stage, greatly increasing the cost and difficulty of attacks, and thus effectively improving the overall security level of the lock.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0017] Figure 1 This is an exploded view of the structure of an anti-drill lock core according to this utility model; Figure 2 for Figure 1 A magnified view of a section at point A in the middle; Figure 3 for Figure 1 A magnified view of a section at point B in the middle; The attached diagram lists the components represented by each number as follows: 1-Lock case, 2-Lock cylinder body, 3-Clutch, 4-Pin mechanism, 5-Lock case anti-drill plate, 6-Lock cylinder anti-drill plate, 7-Reinforcing pad, 8-Turn, 101-Fixed edge, 102-Lock cylinder sleeve, 103-Preset opening, 104-Outer pin hole, 201-Keyhole, 202-Through opening, 203-Deepened opening, 501-Outer trim panel, 502-Inner anti-drill plate, 503-Arched opening, 504-Arched end, 601-Allowing groove. Detailed Implementation

[0018] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 As shown, this utility model is an anti-drilling lock cylinder, including a lock shell 1, two lock cylinder bodies 2, a clutch 3, several pin mechanisms 4, an anti-drilling plate for the lock shell 5 and an anti-drilling plate for the lock cylinder 6. The lock shell 1 includes an integrally connected fixed edge 101 and two lock cylinder sleeves 102. The lock cylinder body 2 is provided with a keyhole 201. The fixed edge 101 has preset openings 103 at both ends. The preset opening 103 is a T-shaped strip groove. The narrow side of the preset opening 103 faces outward. The top of the preset opening 103 is connected to the lock sleeve 102. The two sides of the preset opening 103 are closed sides and the bottom is a closed end. The lock case anti-drilling plate 5 is composed of an outer decorative plate 501 with a T-shaped cross section and an inner anti-drilling plate 502 arranged in a stacked manner. The lock case anti-drilling plate 5 is installed in the preset opening 103 with the outer decorative plate 501 facing outward. The outer end of the lock cylinder body 2 has a strip-shaped through-hole 202 on its peripheral side. The lock cylinder anti-drilling plate 6 is installed in the through-hole 202. The lock cylinder anti-drilling plate 6 has a clearance groove 601 that is opposite to the position of the keyhole 201. Among them, such as Figure 1 As shown, it also includes a reinforcing pad 7. The inner end of the lock cylinder 2 has a deepened opening 203 that communicates with the keyhole 201. The reinforcing pad 7 is movably disposed in the deepened opening 203.

[0020] The two lock cylinder bodies 2 are respectively installed in the two lock cylinder sleeves 102 of the lock shell 1, the clutch 3 is located between the reinforcing pads 7 of the two lock cylinder bodies 2, and a dial 8 that cooperates with the clutch 3 is provided between the two lock cylinder sleeves 102.

[0021] Among them, such as Figure 1 As shown, both sides of the fixed edge 101 are provided with a number of external pin holes 104, and the circumferential side of the lock cylinder 2 is provided with a number of internal pin holes that communicate with the keyhole 201. The pin mechanism 4 is disposed in the external pin holes 104 of the fixed edge 101 and the internal pin holes of the lock cylinder 2.

[0022] Among them, such as Figure 1-2 As shown, both the outer trim panel 501 and the inner anti-drilling plate 502 have an arc-shaped opening 503 at their top ends, and the arc-shaped opening 503 is flush with the inner wall of the lock sleeve 102.

[0023] Among them, such as Figure 1-2As shown, the side of the fixed edge 101 away from the lock sleeve 102 is a semi-circular arc edge, the bottom end of the preset opening 103 is a circular arc opening concentric with the arc edge, and the bottom ends of the outer trim panel 501 and the inner anti-drill plate 502 are arc-shaped ends 504 that match the circular arc opening.

[0024] Among them, such as Figure 1 and Figure 3 As shown, both ends of the anti-drilling plate 6 of the lock cylinder are provided with arc-shaped structures that are flush with the sides of the lock cylinder body 2.

[0025] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0026] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A drill-proof lock cylinder, comprising a lock shell (1), two lock cylinder bodies (2), a clutch (3), and a plurality of pin tumbler mechanisms (4), wherein the lock shell (1) comprises an integrally connected fixed edge (101) and two lock cylinder sleeves (102), and the lock cylinder bodies (2) are provided with keyholes (201), characterized in that: It also includes a lock case anti-drilling plate (5) and a lock cylinder anti-drilling plate (6). The fixed edge (101) has a preset opening (103) at both ends. The preset opening (103) is a T-shaped groove. The narrow side of the preset opening (103) faces outward. The top of the preset opening (103) is connected to the lock sleeve (102). The two sides of the preset opening (103) are closed sides and the bottom is a closed end. The lock case anti-drilling plate (5) is composed of an outer decorative plate (501) and an inner anti-drilling plate (502) with a T-shaped cross section stacked together. The lock case anti-drilling plate (5) is installed in a preset opening (103) with the outer decorative plate (501) facing outward. The outer end of the lock cylinder (2) has a strip-shaped through-hole (202) on its peripheral side. The lock cylinder anti-drilling plate (6) is installed in the through-hole (202). The lock cylinder anti-drilling plate (6) has a clearance groove (601) that is opposite to the keyhole (201).

2. The anti-drilling lock cylinder according to claim 1, characterized in that, It also includes a reinforcing pad (7), and the inner end of the lock cylinder (2) is provided with a deepening port (203) that communicates with the keyhole (201), and the reinforcing pad (7) is movably disposed in the deepening port (203).

3. The anti-drilling lock cylinder according to claim 1, characterized in that, The two lock bodies (2) are respectively installed in the two lock sleeves (102) of the lock shell (1). The clutch (3) is located between the reinforcing pads (7) of the two lock bodies (2). A dial (8) that cooperates with the clutch (3) is provided between the two lock sleeves (102).

4. The anti-drilling lock cylinder according to claim 1, characterized in that, The fixed side (101) is provided with a number of external pin holes (104) on both sides, and the lock cylinder (2) is provided with a number of internal pin holes that communicate with the keyhole (201) on its peripheral side. The pin mechanism (4) is provided in the external pin holes (104) of the fixed side (101) and the internal pin holes of the lock cylinder (2).

5. The anti-drilling lock cylinder according to claim 1, characterized in that, The top of both the outer trim panel (501) and the inner anti-drill plate (502) are provided with an arc-shaped opening (503), which is flush with the inner wall of the lock sleeve (102).

6. The anti-drilling lock cylinder according to claim 1, characterized in that, The fixed edge (101) away from the lock sleeve (102) is a semi-circular arc edge, the bottom end of the preset opening (103) is a circular arc opening concentric with the arc edge, and the bottom ends of the outer trim panel (501) and the inner anti-drill plate (502) are arc-shaped ends (504) that cooperate with the circular arc opening.

7. The anti-drilling lock cylinder according to claim 1, characterized in that, Both ends of the anti-drilling plate (6) of the lock cylinder are provided with arc-shaped structures that are flush with the circumferential side of the lock cylinder body (2).

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