Anti-violent opening structure for handle core of intelligent lock
By setting weak and easily broken cutting grooves and silicone protective pad structures in the handle core, the problem of violent opening of smart locks is solved, and safety and convenience are achieved.
Patent Information
- Application Number
- CN202422154291.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-09-03
AI Technical Summary
When the smart lock cannot obtain a biological key or mechanical key under special circumstances, it is prone to malicious violence, resulting in loss of personnel's property.
Cutting grooves are provided in the handle assembly part of the handle core to reduce the wall thickness to 0.8 to 1.2 mm, and a silicone protective pad is provided in the rotor assembly part, combining the bearing and spring structure to form a weak and easy-to-break point to prevent violent opening, while providing protection for the electronic lock leads.
Effectively prevent the door lock from being violently opened, ensure the safety of personnel's property, and allow the normal opening and protection of the leads of the electronic lock from damage.
Smart Images

Figure CN223190195U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of smart locks, and in particular relates to a smart lock handle core anti-violent opening structure. Background Art
[0002] A smart lock is a door lock that incorporates electronic control functions on top of a traditional mechanical lock. It unlocks the door through authentication using biometrics, a PIN pad, a Bluetooth adapter, or network functionality. The core of a smart lock lies in its security and convenience. Compared to traditional mechanical locks, smart locks typically feature a higher-security lock cylinder, such as a Class C cylinder. This cylinder excels in corrosion resistance, impact resistance, and durability, and theoretically offers a technical unlocking time of over 10 minutes. Smart locks also feature a variety of alarm functions, further enhancing security.
[0003] In some special circumstances, when the biometric key or mechanical key cannot be obtained, the smart lock with a handle structure will maliciously and violently open the door lock, causing loss of life and property. Utility Model Content
[0004] In order to solve the above problems, the utility model provides an anti-violent opening structure of the handle core of an intelligent lock, which can prevent the door lock from being opened violently and effectively protect the safety of people and property.
[0005] A structure for preventing violent opening of a handle core in a smart lock includes a handle core, which includes a handle assembly portion and a rotor assembly portion. The handle core is mounted on a smart lock panel, the handle assembly portion being pluggable and assembled with the handle, and the rotor assembly portion being assembled with the rotor. A through-hole is provided in the middle of the handle assembly portion, through which a bolt passes to connect with the handle. A cutting groove is provided on the surface of the handle assembly portion, extending from the handle assembly portion to the rotor assembly portion. The through-hole wall at the cutting groove is smaller than the rest of the through-hole wall.
[0006] Furthermore, the hole wall of the through hole at the cutting groove is smaller than the hole wall at other parts of the through hole.
[0007] Furthermore, the handle assembly part includes a first step, a second step and a square rod. The square rod is plugged into the handle. A bearing is provided on the surface of the second step. The inner wall of the bearing is tightly fitted with the surface of the second step, and the outer wall of the bearing is tightly fitted with the smart lock panel.
[0008] Furthermore, a silicone protective pad is provided on the rotor assembly portion, and the silicone protective pad covers the cutting groove of the rotor assembly portion.
[0009] Furthermore, the rotor assembly part is provided with four bolt mounting holes, two adjacent bolt mounting holes of which are sunken, and the silicone protective pad is provided with mounting through holes, and the silicone protective pad is fixedly installed at the bolt mounting holes on the sunken side through the mounting through holes.
[0010] Furthermore, a rotor pressure plate is provided on the rotor assembly portion, and the rotor pressure plate is connected to four bolt mounting holes by bolts, and the rotor pressure plate limits the axial position of the rotor.
[0011] Furthermore, the thickness of the hole wall at the first step cutting groove is 0.8 to 1.2 mm.
[0012] The utility model is beneficial in that:
[0013] 1. A cutting groove is provided on one side of the handle assembly. The cutting groove reduces the wall thickness between this part and the through-hole wall. Generally, the wall thickness here is about 0.8 to 1.2 mm. The wall thickness here is also significantly thinner than the rest of the handle. Therefore, when encountering violent opening, this part will quickly break, ensuring the safety of people and property.
[0014] 2. The cutout also guides the wires for the smart lock's biometric identification system, allowing them to pass from the handle to the interior of the handle core. A silicone protective pad is also provided to prevent scratches on the wire's protective coating from burrs on the edge of the handle core during rotation. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a structural schematic diagram of the handle core in the anti-violent opening structure of the smart lock handle core of the utility model.
[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of a handle core in an anti-violent opening structure of an intelligent lock handle core of the present invention.
[0017] Figure 3 This is a schematic diagram of the assembly of the handle core, bearing and spring in the anti-violent opening structure of the smart lock handle core of the utility model.
[0018] Figure 4 This is a structural schematic diagram of the rotor assembly side of the handle core in the anti-violent opening structure of the smart lock handle core of the utility model.
[0019] Figure 5 This is a cross-sectional schematic diagram of the assembly of the handle core and the handle in the anti-violent opening structure of the smart lock handle core of the utility model.
[0020] Drawing numerals: rotor assembly part 1, handle assembly part 2, first step 3, cutting groove 4, bearing 5, spring 6, rotor 7, silicone protective pad 8, handle 9, handle core 10, second step 11. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.
[0022] A structure for preventing violent opening of a handle core of a smart lock includes a handle core, which includes a handle assembly portion and a rotor assembly portion. The handle core is mounted on the smart lock panel, the handle assembly portion is pluggable and assembled with the handle, and the rotor assembly portion is assembled with the rotor. A through-hole is provided in the middle of the handle assembly portion, through which a bolt passes to connect with the handle. A cutting groove is provided on the surface of the handle assembly portion, which extends from the handle assembly portion to the rotor assembly portion. The handle assembly portion includes a first step, a second step, and a square rod, which pluggable and mate with the handle. A bearing is provided on the surface of the second step, the inner wall of the bearing is tightly fitted with the surface of the second step, and the outer wall of the bearing is tightly fitted with the smart lock panel. A silicone protective pad is provided on the rotor assembly portion, which blocks the cutting groove of the rotor assembly portion. Four bolt mounting holes are provided on the rotor assembly portion, two of which are adjacent and sunken. The silicone protective pad is provided with a mounting through-hole, and the silicone protective pad is fixedly mounted to the bolt mounting hole on the sunken side through the mounting through-hole. The rotor assembly is also provided with a rotor pressure plate, which is connected to the four bolt mounting holes by bolts and limits the axial position of the rotor. The wall thickness of the first step cutting groove is 0.8 to 1.2 mm.
[0023] The actual usage process is as follows:
[0024] The handle core is the primary component connecting the handle and the rotor. To prevent the door lock from being opened violently by turning the handle, a weak, easily broken structure is incorporated into the handle core. This structure ensures normal door opening while preventing forceful opening. The material thickness of the cutout groove is thinner than the rest of the door, typically 0.8 to 1.2 mm. This groove also serves as the wiring for the electronic lock. A silicone protective pad covers the cutout groove where the rotor is mounted, protecting the wiring from damage caused by burrs on the components. The first step houses the bearing, which assembles with the lock panel. A spring is also incorporated into the surface to provide a reset force for the handle.
[0025] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention.
Claims
1. A smart lock handle core anti-violent opening structure, characterized in that: It includes a handle core, which includes a handle assembly part and a rotor assembly part. The handle core is installed on the smart lock panel. The handle assembly part is plug-assembled with the handle, and the rotor assembly part is assembled with the rotor. A through hole is provided in the middle of the handle assembly part, and a bolt passes through the through hole to connect with the handle. A cutting groove is provided on the surface of the handle assembly part, and the cutting groove runs through the handle assembly part to the rotor assembly part. The through hole wall at the cutting groove is smaller than the other hole walls of the through hole.
2. The anti-violent opening structure of the smart lock handle core according to claim 1, characterized in that: The handle assembly part includes a first step, a second step and a square rod. The square rod is plugged into the handle. A bearing is provided on the surface of the second step. The inner wall of the bearing is tightly matched with the surface of the second step, and the outer wall of the bearing is tightly matched with the smart lock panel.
3. The anti-violent opening structure of the smart lock handle core according to claim 2, characterized in that: A silicone protective pad is provided on the rotor assembly part, and the silicone protective pad covers the cutting groove of the rotor assembly part.
4. The anti-violent opening structure of the smart lock handle core according to claim 3, characterized in that: Four bolt mounting holes are provided on the rotor assembly part, two adjacent bolt mounting holes are sunken, and a mounting through hole is provided on the silicone protective pad, which is fixed to the bolt mounting hole on the sunken side through the mounting through hole.
5. The anti-violent opening structure of the smart lock handle core according to claim 4, characterized in that: A rotor pressure plate is also provided on the rotor assembly portion. The rotor pressure plate is connected to four bolt mounting holes through bolts, and the rotor pressure plate limits the axial position of the rotor.
6. The anti-violent opening structure of the smart lock handle core according to claim 5, characterized in that: The thickness of the hole wall at the first step cutting groove is 0.8 to 1.2 mm.
Citation Information
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