Anti-riot device of lock cylinder
By setting the front sheath and the rear sheath in the lock core placement hole of the lock body, and locking it with bolts and nuts, the overall structure of the lock core and lock body is formed, and the existing lock body is easily easily unlocked under violent locking. The problem of forcibly breaking away from the lock shell significantly improves the anti-theft effect.
Patent Information
- Application Number
- CN202420984888.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-08
AI Technical Summary
The existing lock body is easily forcibly removed from the lock shell under violent lock unlocking, resulting in stolen.
The front sheath and the rear sheath are arranged in the lock core placement hole of the lock body, and the sheath is passed through these sheaths by bolts and locked with the nuts to form an integral structure between the lock core and the lock body, preventing the lock core from being forcibly disengaged.
It effectively avoids violent unlocking due to forcibly being removed from the lock shell, which significantly improves the anti-theft effect.
Smart Images
Figure CN222457085U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an anti-riot device for a lock core. Background Art
[0002] As attached Figure 1 As shown, the existing lock body 100 generally includes a lock shell 101 and a lock core 102 installed in the lock shell, and the lock core 102 passes through the lock core placement hole of the lock body. A violent unlocking method has emerged in the society, which takes advantage of the disadvantage that the lock core is generally made of soft copper or the leaves in the lock core are thin, so that a columnar object can be forcibly inserted from one end of the key insertion hole of the lock core, and the lock core is forcibly separated from the lock shell from the side of the lock shell rear wall of the lock body, thereby achieving the purpose of violent unlocking. In order to avoid being violently unlocked by this method, the structure of the existing lock body needs to be further improved. Utility Model Content
[0003] The utility model aims to provide a riot-proof device for a lock core which has a simple structure and can prevent the lock core from being violently unlocked due to the lock core being forcibly separated from the lock housing.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] The anti-riot device of the lock core, the lock core is penetrated and arranged in the lock core installation hole of the lock body, and is characterized in that a front cover and a rear cover are fixedly arranged at the place where the lock core is installed on the lock body, and the front cover and the rear cover tightly cover the two ends of the lock core and the lock body, and the bolts pass through the front cover, the lock body and the rear cover in turn and are screwed and locked with the nuts to directly lock the front cover, the rear cover and the lock core on the lock body to form a whole.
[0006] The utility model has the advantages of simple structure, remarkable anti-theft effect and can prevent the lock from being violently opened due to the lock core being forcibly separated from the lock shell. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1 It is a schematic diagram of the three-dimensional structure of an existing lock body.
[0008] Figure 2 It is a schematic diagram of the three-dimensional structure of the lock body in the embodiment of the utility model.
[0009] Figure 3 It is a schematic diagram of the three-dimensional structure of the disassembled state of the lock body in the embodiment of the utility model.
[0010] Figure 4 It is a transverse cross-sectional view of the lock body in the embodiment of the utility model.
[0011] Figure 5 It is a longitudinal sectional view of the lock body in the embodiment of the utility model.
[0012] Figure 6 for Figure 5 Schematic diagram of the amplified state structure at I in the figure.
[0013] Figure 7 It is a schematic diagram of the three-dimensional structure when the lock body is equipped with a key guide sleeve in the embodiment of the utility model.
[0014] Figure 8 It is a schematic diagram of the three-dimensional structure of the lock body and the key guide sleeve in the exploded state in the embodiment of the utility model.
[0015] Fig. 9 for Figure 5 Schematic diagram of the structure in the enlarged state at I in the middle (when the key guide sleeve is installed). DETAILED DESCRIPTION
[0016] As attached Figure 2 To Attachment Figure 6 As shown, the lock core 1 is arranged through the lock core placement hole of the lock body.
[0017] A front cover 4 and a rear cover 3 are fixedly arranged at the place where the lock core 1 is installed on the lock body, and the front cover 4 and the rear cover 3 tightly cover the two ends of the lock core 1 and the lock body.
[0018] Two front wings 42 are formed on opposite sides of the front cover 4, and the front wings 42 are provided with front through holes 43 corresponding to the rear through holes 33. The front cover 4 has a through hole 41 for the key to pass through and insert into the key insertion hole. Two rear wings 32 are formed on opposite sides of the rear cover 3, and the rear wings 32 are provided with rear through holes 33.
[0019] The lock body is provided with a through hole 23 corresponding to the rear through hole 33; the bolt 5 passes through the front cover 4, the lock body and the rear cover 3 in sequence and is screwed and locked with the nut 6 to directly lock the front cover 4, the rear cover 3 and the lock core 1 on the lock body to form a whole. More specifically, the threaded portion 51 of the bolt 5 passes through the front through hole 43, the through hole 23 and the rear through hole 33 in sequence and is screwed with the nut 6. Thus, the structure is simple, the anti-theft effect is significant, and it can prevent the lock core from being forcibly separated from the lock shell and violently unlocked.
[0020] The front cover 4 is provided with protrusions 44 on the two front wings 42; the lock body is provided with locking holes 24 corresponding to the protrusions 44. When the front cover 4 is fixed on the lock body, the protrusions 44 are locked in the locking holes 24, thereby improving the connection and fixation between the front cover 4 and the lock body.
[0021] The front through hole 43 is a square hole, and a square anti-rotation portion 53 is also provided between the threaded portion 51 of the bolt 5 and the nut 52. When the bolt 5 is installed and connected, the anti-rotation portion 53 falls into the square hole. The end face of the nut 52 of the bolt 5 is a smooth curved surface with a crescent-shaped cross section. Therefore, when the threaded portion 51 is screwed with the nut 6, the anti-rotation portion 53 of the bolt 5 interacts with the square hole to make the bolt 5 stationary relative to the lock housing, so that the nut 6 can be screwed on the threaded portion 51 more conveniently. In this way, the purpose of the front cover 4, the rear cover 3 and the lock core 1 becoming an integral part with the lock body through the connection of the bolt 5 is achieved, the difficulty of preventing violent damage is increased, and the safety of use is enhanced.
[0022] A handle assembly for mounting a handle is provided in the lock body, and the handle assembly has a plug hole 7 for mounting and connecting the front handle and the rear handle; the lock body is provided with a front through hole and a rear through hole corresponding to the plug hole 7.
[0023] One of the front through hole and the rear through hole is provided with an anti-pry pin 8, which includes an end 81 and a blocking column 82. The end face of the end 81 is a smooth curved surface with a crescent-shaped cross section, and the blocking column 82 is a square columnar body. The blocking column 82 is blocked in the corresponding plug-in hole 7 by interference fit. It should be specifically explained that because the lock body can adjust the direction to adapt to different door opening and closing directions, and the side facing the outside of the door is not installed with an external handle linkage handle assembly to unlock, therefore, the anti-pry pin 8 needs to be inserted into the front through hole or the rear through hole facing the outside of the door to avoid unlocking through the linkage handle assembly after the lock body panel is damaged.
[0024] As attached Figure 7 To Attachment Fig. 9 As shown, the front cover 4 is also provided with a key guide sleeve 9, which has a guide through hole 91 for guiding the key when inserting the key into the lock cylinder 1. The key guide sleeve 9 is used for guiding the key when the lock body is installed on a thick door, so as to avoid the key from being offset or mis-inserted when inserting the keyhole of the lock cylinder, thereby improving the convenience of use.
[0025] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited thereto. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention are all equivalent replacement methods and are included in the protection scope of the present invention.
Claims
1. The anti-riot device of the lock core, the lock core is arranged through the lock core placement hole of the lock body, characterized in that: A front cover and a rear cover are fixedly provided at the place where the lock core is installed on the lock body. The front cover and the rear cover tightly cover the two ends of the lock core and the lock body. The bolts pass through the front cover, the lock body and the rear cover in sequence and are screwed and locked with nuts to directly lock the front cover, the rear cover and the lock core on the lock body to form a whole.
2. The anti-riot device of the lock core according to claim 1, characterized in that: The front protective sleeve is also sleeved with a key guide sleeve, which has a guide through hole for guiding the key when it is inserted into the lock core to unlock the lock.
3. The anti-riot device of the lock core according to any one of claims 1 or 2, characterized in that: Two rear side wings are formed on the opposite sides of the rear sleeve, and the rear side wings are provided with rear through holes; two front side wings are formed on the opposite sides of the front sleeve, and the front side wings are provided with front through holes corresponding to the rear through holes; the lock body is provided with through holes corresponding to the rear through holes; the threaded portion of the bolt passes through the front through hole, the through hole and the rear through hole in sequence and is screwed to the nut.
4. The anti-riot device of the lock core according to claim 3, characterized in that: The front cover is provided with protrusions on the two front side wings respectively; the lock body is provided with clamping holes corresponding to the protrusions, and when the front cover is fixed on the lock body, the protrusions are clamped in the clamping holes.
5. The anti-riot device of the lock core according to claim 3, characterized in that: The front through hole is a square hole, and a square anti-rotation portion is provided between the threaded portion of the bolt and the nut. When the bolt is installed and connected, the anti-rotation portion is located in the square hole.
6. The anti-riot device of the lock core according to claim 3, characterized in that: The end face of the nut of the bolt is a smooth curved surface with a crescent-shaped cross section.
7. The anti-riot device of the lock core according to claim 3, characterized in that: A handle assembly for installing a handle is provided in the lock body, and the handle assembly has a plug-in hole for installing and connecting the front handle and the rear handle; the lock body is provided with a front through hole and a rear through hole corresponding to the plug-in hole; one of the front through hole and the rear through hole is equipped with an anti-pry pin, and the anti-pry pin includes an end head and a blocking column, the end face of the end head is a smooth curved surface with a crescent-shaped cross-section, and the blocking column is a square columnar body, and the blocking column is blocked in the corresponding plug-in hole by an interference fit.