A high-strength laminated lock

Abstract

The utility model provides a kind of high-strength thousand-layer lock, including lock body, lock core, key, buffer cavity, compression spring, lock beam, clamping groove and locking hole, the inside of lock body is fixed with lock core, and the inside of lock body is provided with buffer cavity;The end of lock beam is slidably installed in buffer cavity inside, and the end of lock beam is fixed with compression spring between the end of buffer cavity and buffer cavity bottom;The other end of lock beam away from buffer cavity outside is provided with the clamping groove that is adapted to the execution end of lock core;Locking hole is provided on the lock body and is adapted to lock beam, wherein the inside of locking hole movably is provided with the execution end of lock core;The end of key is slidably arranged in lock core inside.The utility model lock body is set, when using, lock core can be provided with double protection, and lock core can be unexpectedly untied due to vibration, secondly, the setting of lock beam, when lock beam is damaged, only partial structure needs to be replaced.

Description

Technical Field

[0001] This utility model belongs to the field of multi-layer lock technology, and in particular relates to a high-strength multi-layer lock. Background Technology

[0002] As an important category of mechanical anti-theft locks, multi-layer locks are named for their internal multi-layer metal protective structure (such as stacked lock cylinders and multi-locking mechanisms). Their core function is to achieve highly reliable locking through mechanical interlocking. They are widely used in outdoor power distribution boxes, logistics turnover boxes, industrial equipment cabinet doors, bicycles / electric vehicles, and small and medium-sized safes. They need to withstand long-term outdoor environmental corrosion, accidental impacts, and potential violent damage, and therefore have high requirements for structural stability and damage resistance.

[0003] The basic structure of most multi-layered locks on the market generally consists of five core components: lock body, lock cylinder, lock beam, compression spring, and locking hole. The lock body is mostly a one-piece metal shell, which is the supporting carrier of the entire lock. The lock cylinder, as the unlocking core, has a precision blade (or pin) assembly inside, with the blade matching the tooth shape of the key. The lock beam is mainly a one-piece "U"-shaped or straight rod-shaped metal piece, with one end sliding into the locking hole of the lock body and the other end connected to the compression spring. The compression spring is installed between the internal cavity of the lock body and the end of the lock beam. When locked, the lock beam compresses the spring and remains taut. After unlocking, the spring elastically returns to its original position, pushing the lock beam to automatically pop out, achieving quick unlocking. The locking hole is opened on the lock body, which is both the sliding channel of the lock beam and the working channel of the lock cylinder.

[0004] However, although existing multi-layered locks can meet basic anti-theft needs, they still have significant shortcomings in structural design and maintenance, specifically as follows: First, the lock bodies of existing multi-layer locks are all one-piece rigid structures without any buffer or protective components. The vibration waves generated by external impacts (such as hammering, prying, and equipment falling and colliding) will be directly and without attenuation transmitted to the lock cylinder inside the lock body. The blades (or pins) inside the lock cylinder are precision components, with the gap between adjacent blades usually only 0.1-0.3mm, and they rely on tiny springs to maintain their position. Severe vibration can easily cause the blades to deviate from their original positioning position. If the vibration causes the originally misaligned blades to accidentally align, the lock cylinder will retract on its own, directly causing the lock cylinder to be accidentally unlocked and losing its anti-theft function. Secondly, the lock beam, as the "force front" of the lock, is the most vulnerable component. In daily use, the lock beam is often deformed due to violent prying, chipped due to sawing, or corroded and broken due to long-term outdoor exposure. However, the lock beam of existing multi-layer locks is an integral and non-separable structure. Once the lock beam is damaged, it is not possible to replace only the damaged lock beam component. The entire lock must be removed from the equipment and replaced with a brand new multi-layer lock.

[0005] Therefore, it is essential to invent a high-strength multi-layered lock. Utility Model Content

[0006] To address the above problems, this utility model proposes a high-strength multi-layered lock, and the technical solution used is as follows: A high-strength multi-layer lock includes a lock body, a lock cylinder, a key, a buffer cavity, a compression spring, a lock beam, a slot, and a locking hole. The lock cylinder is fixed inside the lock body, and a buffer cavity is formed inside the lock body. One end of the lock beam is slidably installed inside the buffer cavity, and a compression spring is fixed between the end of the lock beam in the buffer cavity and the bottom of the buffer cavity. The outer side of the other end of the lock beam away from the buffer cavity has a slot that adapts to the actuating end of the lock cylinder. A locking hole adapted to the lock beam is formed on the lock body, and the actuating end of the lock cylinder is movably disposed inside the locking hole. One end of the key is slidably disposed inside the lock cylinder.

[0007] Furthermore, the lock body includes an inner shell and an outer shell. The lock cylinder is fixed inside the inner shell, and a buffer cavity and a locking hole are respectively opened inside the inner shell. The outer shell is fixedly wrapped around the outer side of the inner shell, and a through hole adapted to the buffer cavity and the locking hole is opened on the outer shell. This arrangement can provide double protection for the lock cylinder and prevent the lock cylinder from being damaged.

[0008] Furthermore, a shock-absorbing pad is fixed between the inner shell and the outer shell, wherein the shock-absorbing pad has through holes adapted to the buffer cavity and the locking hole. This arrangement can absorb and reduce the vibration waves generated by external knocking and hammering, and prevent the lock cylinder from being accidentally unlocked due to vibration.

[0009] Furthermore, the lock beam includes a first beam, a stud, and a second beam. One end of the first beam is slidably installed inside the buffer cavity, and a compression spring is fixed between the corresponding end of the first beam and the bottom of the buffer cavity. The stud is welded to the end of the first beam outside the lock body, and the stud is fixed inside the second beam by thread engagement. The second beam is U-shaped with its opening facing the lock body, and both ends of the second beam are on the same plane. A groove adapted to the lock cylinder's actuating end is provided on the outer side of the end of the second beam away from the first beam, and the diameter of the second beam is adapted to the inner diameter of the locking hole. With this configuration, when the second beam is damaged (such as by saw marks or pry marks), the user can directly unscrew the damaged second beam in the unlocked state and replace it with a new one, without having to replace the entire lock.

[0010] Compared with the prior art, the present invention has the following beneficial effects: The lock body of this utility model has a design that, through the cooperation of the outer shell and the inner shell, can provide double protection for the lock cylinder, preventing damage to the lock cylinder. Secondly, the shock-absorbing pad effectively absorbs and reduces the vibration waves generated by external knocking and hammering, preventing the vibration from being transmitted to the inside of the lock cylinder and causing displacement of the precision blades, thereby preventing the lock cylinder from being accidentally unlocked due to vibration.

[0011] The lock beam design of this utility model allows the connection between the first and second beams to be located outside the buffer cavity when the lock is in the unlocked state. This means that if the second beam is damaged (e.g., by saw marks or pry marks), it can be replaced directly in the unlocked state without replacing the entire lock. Furthermore, when the lock is in the locked state, the connection between the first and second beams is located inside the buffer cavity and protected by the lock body, thus preventing damage to the connection between the first and second beams. Attached Figure Description

[0012] 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.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0015] Figure 3 This is a utility model Figure 2 A magnified schematic diagram of the structure at position "A" in the middle.

[0016] Figure 4 This is a schematic diagram of the lock beam of this utility model.

[0017] In the picture: 1-Lock body, 11-Inner shell, 12-Outer shell, 13-Shock damping pad, 2-Lock cylinder, 3-Key, 4-Buffer chamber, 5-Compression spring, 6-Lock beam, 61-First beam, 62-Stud, 63-Second beam, 7-Slot, 8-Locking hole. 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] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] Please see Figures 1 to 4 As shown, this utility model is a high-strength multi-layer lock, including a lock body 1, a lock cylinder 2, a key 3, a buffer cavity 4, a compression spring 5, a lock beam 6, a slot 7, and a locking hole 8. The lock cylinder 2 is fixed inside the lock body 1, and the buffer cavity 4 is formed inside the lock body 1. One end of the lock beam 6 is slidably installed inside the buffer cavity 4, and the compression spring 5 is fixed between the end of the lock beam 6 and the bottom of the buffer cavity 4. The outer side of the other end of the lock beam 6 away from the buffer cavity 4 has a slot 7 that is adapted to the actuating end of the lock cylinder 2. The lock body 1 has a locking hole 8 that is adapted to the lock beam 6, and the actuating end of the lock cylinder 2 is movably arranged inside the locking hole 8. One end of the key 3 is slidably disposed inside the lock cylinder 2.

[0021] Specifically, the lock body 1 includes an inner shell 11 and an outer shell 12. The lock cylinder 2 is fixed inside the inner shell 11, and a buffer cavity 4 and a locking hole 8 are respectively opened inside the inner shell 11. The outer shell 12 is fixedly wrapped around the outer side of the inner shell 11, and a through hole adapted to the buffer cavity 4 and the locking hole 8 is opened on the outer shell 12. With this arrangement, the lock cylinder 2 can be doubly protected by the cooperation of the outer shell 12 and the inner shell 11, so as to avoid damage to the lock cylinder 2.

[0022] Specifically, a shock-absorbing pad 13 is fixed between the inner shell 11 and the outer shell 12. The shock-absorbing pad 13 has through holes that are compatible with the buffer cavity 4 and the locking hole 8. In use, the shock-absorbing pad 13 effectively absorbs and reduces the vibration waves generated by external knocking and hammering, preventing the vibration from being transmitted to the inside of the lock cylinder 2 and causing the precision blades to shift, thereby preventing the lock cylinder 2 from being accidentally unlocked due to vibration.

[0023] Specifically, the lock beam 6 includes a first beam 61, a stud 62, and a second beam 63. One end of the first beam 61 is slidably installed inside the buffer cavity 4, and a compression spring 5 is fixed between the corresponding end of the first beam 61 and the bottom of the buffer cavity 4. The stud 62 is welded to the end of the first beam 61 outside the lock body 1, and the stud 62 is fixed inside the second beam 63 by thread engagement. The second beam 63 is U-shaped with its opening facing the lock body 1, and both ends of the second beam 63 are on the same plane. The outer side of the end of the second beam 63 away from the first beam 61 has a section adapted to the actuating end of the lock cylinder 2. The slot 7 and the diameter of the second beam 63 are adapted to the inner diameter of the locking hole 8. With this configuration, when the lock is in the unlocked state, the connection position of the first beam 61 and the second beam 63 is outside the buffer cavity 4. Therefore, if the second beam 63 is damaged (such as saw marks or pry marks), it can be directly replaced in the unlocked state without replacing the entire lock. In addition, when the lock is in the locked state, the connection position of the first beam 61 and the second beam 63 is inside the buffer cavity 4 and is protected by the lock body 1, thereby preventing damage to the connection position of the first beam 61 and the second beam 63.

[0024] Please see Figure 1-4 As shown, this utility model is a high-strength multi-layer lock. Its working principle is as follows: When in use, the lock beam 6 can be passed through the structure to be locked. Then, by pressing the lock beam 6, the lock cylinder 2 and the slot 7 cooperate to form a "ring" between the lock beam 6 and the lock body 1, thereby locking the corresponding structure. Finally, the key 3 is pulled out. When unlocking is required, the key 3 can be inserted into the lock cylinder 2, and by rotating the key 3, the actuating end of the lock cylinder 2 is disengaged from the slot 7, thereby causing the lock beam 6 to move accordingly under the action of the compression spring 5, thus completing the unlocking of the lock.

[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 high-strength multi-layer lock, comprising a lock body (1), a lock cylinder (2), a key (3), a buffer cavity (4), a compression spring (5), a lock beam (6), a slot (7), and a locking hole (8), characterized in that: The lock body (1) has a lock cylinder (2) fixed inside, and a buffer cavity (4) is provided inside the lock body (1); one end of the lock beam (6) is slidably installed inside the buffer cavity (4), and a compression spring (5) is fixed between the end of the lock beam (6) in the buffer cavity (4) and the bottom of the buffer cavity (4); a slot (7) adapted to the execution end of the lock cylinder (2) is provided on the outer side of the other end of the lock beam (6) away from the buffer cavity (4); a locking hole (8) adapted to the lock beam (6) is provided on the lock body (1), and the execution end of the lock cylinder (2) is movably arranged inside the locking hole (8); one end of the key (3) is slidably arranged inside the lock cylinder (2).

2. The high-strength multi-layered lock as described in claim 1, characterized in that: The lock body (1) includes an inner shell (11) and an outer shell (12). The inner shell (11) has a lock cylinder (2) fixed inside, and a buffer cavity (4) and a locking hole (8) are respectively opened inside the inner shell (11). The outer shell (12) is wrapped and fixed on the outer side of the inner shell (11), and a through hole adapted to the buffer cavity (4) and the locking hole (8) is opened on the outer shell (12).

3. A high-strength multi-layered lock as described in claim 2, characterized in that: A shock-absorbing pad (13) is fixed between the inner shell (11) and the outer shell (12), wherein the shock-absorbing pad (13) has through holes adapted to the buffer cavity (4) and the locking hole (8).

4. A high-strength multi-layered lock as described in claim 1, characterized in that: The locking beam (6) includes a first beam (61), a stud (62), and a second beam (63). One end of the first beam (61) is slidably installed inside the buffer cavity (4), and a compression spring (5) is fixed between the corresponding end of the first beam (61) and the bottom of the buffer cavity (4). The stud (62) is fixed at the end of the first beam (61) outside the lock body (1), and the stud (62) is fixed inside the second beam (63) by thread engagement. The second beam (63) is shaped like a "U" with its opening facing the lock body (1), and both ends of the second beam (63) are on the same plane. A slot (7) adapted to the execution end of the lock cylinder (2) is opened on the outer side of the end of the second beam (63) away from the first beam (61), and the diameter of the second beam (63) is adapted to the inner diameter of the locking hole (8).

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