An integrated electronic deadbolt for an intelligent lock
By integrating electronic lock protection devices with mechanical and electronic lock cylinders, the problem of insufficient security in traditional locks is solved, achieving dual electromechanical protection and intelligent lock security enhancement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-16
AI Technical Summary
Traditional electronic locks cannot prevent unauthorized unlocking techniques, and the mechanical lock cylinder and electronic lock cylinder cannot be effectively integrated, resulting in insufficient security.
An integrated electronic lock protector for smart locks was designed, comprising an outer shell, an insulating shell, an anti-drilling cover, a chip connector, a lock cylinder rotor, a hoist lock cylinder, and a lock cylinder linkage flat iron. Through the combination of mechanical and electronic components, it achieves dual electromechanical protection without increasing the size of the lock cylinder.
It enables use in conjunction with electronic digital keys, improving the security and intelligence level of the lock, preventing unauthorized unlocking, and meeting both electromechanical protection requirements.
Smart Images
Figure CN224363754U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of smart lock technology, and in particular to an integrated electronic lock protector for smart locks. Background Technology
[0002] Traditional electronic locks have purely mechanical lock cylinders that are only compatible with mechanical keys, which cannot prevent the drawbacks of illegal unlocking techniques. In order to improve security and intelligence, electromechanical integrated electronic digital keys with built-in chips have also appeared on the market. Therefore, an electronic lock cylinder is needed to match it. Since the space inside the lock body is limited, the change in lock cylinder volume needs to be considered. Therefore, there is an urgent need for an electronic lock protector that integrates mechanical lock cylinder and electronic lock cylinder. Summary of the Invention
[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide an integrated electronic lock protector for smart locks that can be used with electronic digital keys, thus completely changing the unsafe status quo that smart locks can be unlocked by illegal techniques.
[0004] The technical solution adopted in this utility model is:
[0005] An integrated electronic lock protector for smart locks includes an outer shell, an insulating shell, an anti-drilling cover, a chip connector, a lock cylinder rotor, a gourd lock cylinder, a lock cylinder linkage flat iron, and a flat iron nut.
[0006] The outer shell is made of metal and includes a front panel and a back shell. Both the front panel and the back shell are elliptical. After the front panel and the back shell are fastened together, an installation space is formed inside. A circular mounting hole is provided on the upper part of the front panel, and an elliptical mounting groove is provided on the back shell. The upper edge of the mounting groove protrudes backward to form an arc-shaped lock head protective plate.
[0007] The insulating shell is set in the installation space of the outer shell. The shape of the insulating shell is a gourd-shaped structure that matches the shape of the gourd lock head. The insulating shell includes a front plate and an inner shell. The upper part of the front plate is provided with an annular groove concentric with the mounting hole on the upper part of the panel, and the lower part extends downward to provide a mounting part. The upper inner wall of the inner shell is provided with a limit ring, and the outer edge of the rear side of the inner shell is provided with a mounting step that matches the rear shell.
[0008] The anti-drilling cover is made of metal and is installed in the insulating shell in front of the limiting ring. The anti-drilling cover has a circular structure and the front end of the anti-drilling cover is located in the annular groove on the upper part of the front piece and in the mounting hole of the panel.
[0009] The chip connector is made of copper and is located in an insulating shell between the rear side of the anti-drill cover and the front side of the limit ring. The chip connector is connected to the CPU detection port of the lock's electronic motherboard via a data cable.
[0010] The lock cylinder is installed inside the hoist lock head, and the rear end of the lock cylinder has a threaded part; the front end of the hoist lock head is inserted into the rear end of the inner shell of the insulating housing, and the end is abutted on the rear side of the limiting ring of the inner shell; the end of the lock cylinder linkage flat iron is connected to the rear end of the lock cylinder and is fastened by the flat iron nut set on the threaded part of the rear end of the lock cylinder; the rear end of the lock cylinder linkage flat iron is correspondingly set with the lock tongue actuation part inside the lock.
[0011] Specifically, screw holes are provided on the rear part of the outer shell panel and on both sides of the rear shell, and the panel and the rear shell are connected by screws; a connecting post is provided at the lower end of the rear shell, and a slot is provided at the lower end of the panel.
[0012] Specifically, the front panel of the insulating shell is made of transparent material, and a boss is provided on the mounting part at the lower part of the front panel. The boss is located in the corresponding hole on the outer shell panel, and an LED lamp bead is installed in the boss. The boss facilitates the connection between the insulating shell and the outer shell and the installation of the LED lamp bead.
[0013] Specifically, the inner shell of the insulating housing has a spring mounting through hole extending from the limiting ring to the rear side at its top. A spring A is installed in the spring mounting through hole. The front end of the spring A rests on the chip connector, and the rear end rests on the upper edge of the rear shell. The spring A supports and limits the chip connector, ensuring good contact of the data line of the chip connector during key insertion.
[0014] Specifically, the lower end of the inner shell is provided with a connecting lug, and the connecting post at the lower part of the rear shell passes through the connecting lug and is inserted into the corresponding slot on the panel to fix the insulating shell to the outer shell.
[0015] Specifically, the anti-drill cover includes a cover body, a bracket, and a spring; a key insertion slot is provided in the middle of the cover body, the bracket is located inside the rear side of the cover body, and the spring is located on the bracket via a pin and a torsion spring corresponding to the key insertion slot on the cover body.
[0016] Specifically, the upper part of the chip connector is an annular shape that matches the anti-drill cover, and the lower part is a sheet shape that matches the inner cavity of the inner shell. The upper annular part of the chip connector is in contact with the anti-drill cover, and the lower part is located inside the lower part of the inner shell.
[0017] Specifically, the rear threaded portion of the lock cylinder has a pin hole, and a cylindrical pin with a flange ring in the middle is positioned in the pin hole by a spring B. The front end of the lock cylinder linkage flat iron has a round plate-shaped connector with a U-shaped opening groove corresponding to the pin hole. The bottom of the flat iron nut has a gear-shaped slot. The round plate-shaped connector of the lock cylinder linkage flat iron is located inside the bottom of the flat iron nut, and the rear end of the cylindrical pin passes through the U-shaped opening groove and is located in the corresponding gear-shaped slot at the bottom of the flat iron nut to prevent the flat iron nut from loosening.
[0018] Specifically, the rear end of the lock cylinder linkage flat iron is extended, and the extended part is provided with a groove for easy cutting; it is used to cooperate with locks of different thicknesses.
[0019] Specifically, the flat iron nut has knurling on its outer edge to facilitate turning.
[0020] Due to the adoption of the above-mentioned technical solution, this utility model has the following advantages: The integrated electronic lock protector of this utility model replaces the traditional pure mechanical lock head. The structure is optimized, and without increasing the size of the lock head, it can be used in conjunction with electronic digital keys. Through unified control of the lock motherboard, it meets the dual electromechanical protection and improves the security of the lock. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall design of this utility model.
[0022] Figure 2 This is an exploded schematic diagram of this utility model.
[0023] Figure 3 This is a schematic diagram of the back cover of this utility model.
[0024] Figure 4 This is a schematic diagram of the inner shell of this utility model.
[0025] Figure 5 This is an exploded schematic diagram of the present invention after the back cover and the gourd lock head have been removed.
[0026] In the diagram: 1-Outer shell, 11-Panel, 111-Mounting hole, 112-Slot, 12-Rear shell, 121-Mounting groove, 122-Lock head protective plate, 123-Connecting post, 2-Insulating shell, 21-Front piece, 211-Boss, 212-LED bead, 22-Inner shell, 221-Limiting ring, 222-Mounting step, 223-Spring mounting through hole, 224-Spring A, 225-Connecting ear, 3-Anti-drilling cover, 31-Cover body, 32-Bracket, 33-Spring piece, 4-Chip connector, 5-Lock head rotating core, 51-Pin hole, 52-Cylindrical pin, 53-Spring B, 6-Hoop lock head, 7-Lock head linkage flat iron, 71-Connector, 711-U-shaped opening groove, 8-Flat iron nut. Detailed Implementation
[0027] The present invention will be further explained below with reference to the accompanying drawings and embodiments. However, this explanation should not be construed as limiting the scope of protection of the present invention. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.
[0028] Combined with appendix Figure 1-5The integrated electronic lock protector for a smart lock shown includes an outer shell 1, an insulating shell 2, an anti-drilling cover 3, a chip connector 4, a lock cylinder 5, a gourd lock cylinder 6, a lock cylinder linkage flat iron 7, and a flat iron nut 8.
[0029] The outer shell 1 is made of metal and includes a front panel 11 and a back shell 12. Both the front panel 11 and the back shell 12 are elliptical. Screw holes are provided on the rear of the front panel 11 and the sides of the back shell 12. A connecting post 123 is provided at the lower end of the back shell 12, and a slot 112 is provided at the lower end of the front panel 11. The front panel 11 and the back shell 12 are fastened together by the connecting post 123 and the slot 112 and then connected by screws to form an installation space inside. A circular mounting hole 111 is provided on the upper part of the front panel 11, and an elliptical mounting groove 121 is provided on the back shell 12. The upper edge of the mounting groove 121 protrudes backward to form an arc-shaped lock head protective plate 122.
[0030] The insulating housing 2 is installed within the mounting space of the outer shell 1. The insulating housing 2 has a gourd-shaped structure that matches the shape of the gourd lock head 6. The insulating housing 2 includes a front piece 21 and an inner shell 22. The front piece 21 is made of transparent material. The upper part of the front piece 21 has an annular groove concentric with the mounting hole 111 on the upper part of the panel 11. The lower part extends downward to provide a mounting part. The mounting part has a boss 211, which is located in the corresponding hole on the panel 11 of the outer shell 1. An LED bead 212 is also installed in the boss 211. The boss 211 facilitates the connection between the insulating housing 2 and the outer shell 1 and the installation of the LED bead 212. A limit ring 221 is provided on the upper inner wall of the inner shell 22. The rear side of the inner shell 22 has a limit ring 221. The outer edge is provided with an installation step 222 that matches the rear shell 12; the top of the inner shell 22 extends from the limiting ring 221 to the rear side and is provided with a spring mounting through hole 223. A spring A224 is provided in the spring mounting through hole 223. The front end of the spring A224 is abutted on the chip connector 4 and the rear end is abutted on the upper edge of the rear shell 12. The spring A224 supports and limits the chip connector 4 to ensure good contact of the data line of the chip connector 4 during key insertion; a connecting lug 225 is provided at the lower end of the inner shell 22. The connecting post 123 at the lower part of the rear shell 12 passes through the connecting lug 225 and is inserted into the corresponding slot 112 of the panel 11, fixing the insulating shell 2 to the outer shell 1.
[0031] The anti-drilling cover 3 is made of metal and is located inside the insulating shell 2 in front of the limiting ring 221. The anti-drilling cover 3 has a circular structure and includes a cover body 31, a bracket 32, and a spring piece 33. The front end of the cover body 31 is located in the annular groove on the upper part of the front piece 21 and in the mounting hole 111 of the panel 11. A key insertion slot is provided in the middle of the cover body 31. The bracket 32 is located inside the rear side of the cover body 31. The spring piece 33 is located on the bracket 32 corresponding to the key insertion slot on the cover body 31 through a pin and a torsion spring.
[0032] The chip connector 4 is made of copper and is located in the insulating housing 2 between the rear side of the anti-drill cover 3 and the front side of the limiting ring 221. The upper part of the chip connector 4 is a ring that matches the anti-drill cover 3, and the lower part is a sheet that matches the inner cavity of the inner shell 22. The lower part is located in the lower part of the inner shell 22. The chip connector 4 is connected to the CPU detection port of the lock electronic motherboard through a data cable.
[0033] The lock cylinder core 5 is installed inside the hoist lock head 6. The rear end of the lock cylinder core 5 has a threaded part with a pin hole 51. A cylindrical pin 52 with a flange ring in the middle is positioned in the pin hole 51 by a spring B53. The front end of the hoist lock head 6 is inserted into the rear end of the inner shell 22 of the insulating housing 2, and the end is abutted on the rear side of the limiting ring 221 of the inner shell 22. The end of the lock head linkage flat iron 7 is connected to the rear end of the lock cylinder core 5. The front end of the lock head linkage flat iron 7 has a circular plate-shaped connector 71 with a U-shaped opening groove 711 corresponding to the pin hole 51. The flat iron nut 8 has a gear-shaped slot at its bottom. The circular plate-shaped connector 71 of the lock head linkage flat iron 7 is located inside the bottom of the flat iron nut 8. After the flat iron nut 8 is screwed into place on the threaded part at the rear end of the lock head rotating core 5, the cylindrical pin 52 pops out from the pin hole 51 under the action of the spring B53. The flange ring on the cylindrical pin 52 is located on the outside of the U-shaped opening groove 711 of the circular plate-shaped connector 71, and the rear end of the cylindrical pin 52 is located in the corresponding gear-shaped slot at the bottom of the flat iron nut 8 to prevent the flat iron nut 8 from loosening. The rear end of the lock head linkage flat iron 7 is correspondingly set with the lock tongue actuating part inside the lock.
[0034] This utility model relates to an integrated electronic lock protector for smart locks. During assembly, the anti-drilling cover 3, chip connector 4, and LED beads 212 are installed inside the insulating housing 2. The circular plate-shaped connector 71 of the lock head linkage flat iron 7 is first installed into the flat iron nut 8. The U-shaped opening groove 711 of the circular plate-shaped connector 71 is aligned with the pin hole 51. A tool is used to press the cylindrical pin 52 into the pin hole 51 for positioning. Then, the flat iron nut 8 is screwed into place on the threaded part at the rear end of the lock head rotating core 5 using knurling. After releasing the tool, the cylindrical pin 52 pops out of the pin hole 51 under the action of the spring B53. The flange ring on the cylindrical pin 52 is positioned on both sides of the U-shaped opening groove 711 of the circular plate-shaped connector 71 and passes through the U-shaped opening groove 711 before being located on the flat iron nut 51. The flat iron nut is rotated and loosened in the corresponding gear-shaped groove at the bottom of the cap 8; then the hoist lock head 6 is installed, and the assembled hoist lock head 6 is installed on the back side of the insulating inner shell 22. Then the panel 11 of the outer shell 1 is placed on the front side of the lock panel 11, and the rear shell 12 is placed on the back side of the lock panel 11. The lower connecting post 123 of the panel 11 and the rear shell 12 are fastened to the slot 112 and connected by screws. The gap between the panel 11 and the rear shell 12 of the outer shell 1 is locked on the lock panel 11 to fix the lock protector on the lock panel 11. The outer shell 1 is connected to the common negative terminal, i.e., the ground terminal, of the lock electronic main board through a wire; the chip connector 4 is connected to the CPU detection port of the lock electronic main board through a data line; the LED bead 212 is connected to the lock power cord.
[0035] When in use, after the electronic key is inserted into the anti-drill cover 3, the positive plate of the electronic key contacts the spring 33 and then conducts through the chip connector 4. The data line of the chip connector 4 and the detection port of the lock's electronic mainboard CPU form a positive data signal channel, which can detect the status of the electronic key in real time. When the lock mainboard detects that the electronic key is a valid key, the lock's electronic mainboard will release a high-level pulse signal to enable the electronic lock to unlock normally, and the key teeth will enter the lock cylinder 5 to unlock normally. Conversely, if a canceled key or a mechanical key is detected, the lock's electronic mainboard CPU will issue an alarm signal, the LED bead 212 will flash, and the lock will refuse to unlock.
[0036] The specific structure of the lock cylinder and gourd lock head of this utility model is the lock cylinder and lock head of existing mechanical locks, so it is not described in detail.
[0037] The embodiments selected herein for the purpose of disclosing the utility model are currently considered suitable; however, it should be understood that the present invention is intended to include all variations and modifications of the embodiments that fall within the scope of the present concept and utility model.
Claims
1. An integrated electronic lock protector for smart locks, characterized in that: Includes outer casing, insulating casing, anti-drill cover, chip connector, lock cylinder core, hoist lock cylinder, lock cylinder linkage flat iron and flat iron nut; The outer shell is made of metal and includes a front panel and a back shell. Both the front panel and the back shell are elliptical. After the front panel and the back shell are fastened together, an installation space is formed inside. A circular mounting hole is provided on the upper part of the front panel, and an elliptical mounting groove is provided on the back shell. The upper edge of the mounting groove protrudes backward to form an arc-shaped lock head protective plate. The insulating shell is set in the installation space of the outer shell. The shape of the insulating shell is a gourd-shaped structure that matches the shape of the gourd lock head. The insulating shell includes a front plate and an inner shell. The upper part of the front plate is provided with an annular groove concentric with the mounting hole on the upper part of the panel, and the lower part extends downward to provide a mounting part. The upper inner wall of the inner shell is provided with a limit ring, and the outer edge of the rear side of the inner shell is provided with a mounting step that matches the rear shell. The anti-drilling cover is made of metal and is installed in the insulating shell in front of the limiting ring. The anti-drilling cover has a circular structure and the front end of the anti-drilling cover is located in the annular groove on the upper part of the front piece and in the mounting hole of the panel. The chip connector is made of copper and is located in an insulating shell between the rear side of the anti-drill cover and the front side of the limit ring. The chip connector is connected to the CPU detection port of the lock's electronic motherboard via a data cable. The lock cylinder is installed inside the hoist lock head, and the rear end of the lock cylinder has a threaded part; the front end of the hoist lock head is inserted into the rear end of the inner shell of the insulating housing, and the end is abutted on the rear side of the limiting ring of the inner shell; the end of the lock cylinder linkage flat iron is connected to the rear end of the lock cylinder and is fastened by the flat iron nut set on the threaded part of the rear end of the lock cylinder; the rear end of the lock cylinder linkage flat iron is correspondingly set with the lock tongue actuation part inside the lock.
2. The integrated electronic lock protector for smart locks according to claim 1, characterized in that: The outer casing has screw holes on the rear of the panel and on both sides of the rear shell, and the panel and the rear shell are connected by screws; a connecting post is provided at the lower end of the rear shell, and a slot is provided at the lower end of the panel.
3. The integrated electronic lock protector for smart locks according to claim 1, characterized in that: The front panel of the insulating shell is made of transparent material. A boss is provided on the mounting part at the bottom of the front panel. The boss is located in the corresponding hole on the outer shell panel. An LED bead is also installed in the boss. The boss facilitates the connection between the insulating shell and the outer shell and the installation of the LED bead.
4. The integrated electronic lock protector for smart locks according to claim 1, characterized in that: The inner shell of the insulating housing has a spring mounting through hole extending from the limiting ring to the rear side. A spring A is installed in the spring mounting through hole. The front end of the spring A is mounted on the chip connector, and the rear end is mounted on the upper edge of the rear shell. The spring A supports and limits the chip connector.
5. The integrated electronic lock protector for smart locks according to claim 1, characterized in that: The lower end of the inner shell is provided with a connecting lug, and the connecting post at the lower part of the rear shell passes through the connecting lug and is inserted into the slot to fix the insulating shell to the outer shell.
6. The integrated electronic lock protector for smart locks according to claim 1, characterized in that: The anti-drill cover includes a cover body, a bracket, and a spring; a key insertion slot is provided in the middle of the cover body, the bracket is located inside the rear side of the cover body, and the spring is located on the bracket via a pin and a torsion spring corresponding to the key insertion slot on the cover body.
7. The integrated electronic lock protector for smart locks according to claim 1, characterized in that: The chip connector has an upper ring that matches the anti-drill cover and a lower sheet that matches the inner cavity of the inner shell. The upper ring of the chip connector is in contact with the anti-drill cover, and the lower part is located inside the lower part of the inner shell.
8. The integrated electronic lock protector for smart locks according to claim 1, characterized in that: The lock cylinder has a pin hole on the threaded part at the rear end. A cylindrical pin with a flange ring in the middle is set in the pin hole by spring B. The front end of the lock cylinder linkage flat iron has a round plate-shaped connector with a U-shaped opening groove corresponding to the pin hole. The bottom of the flat iron nut has a gear-shaped slot. The round plate-shaped connector of the lock cylinder linkage flat iron is located inside the bottom of the flat iron nut. The rear end of the cylindrical pin passes through the U-shaped opening groove and is located in the corresponding gear-shaped slot at the bottom of the flat iron nut to prevent the flat iron nut from loosening.
9. The integrated electronic lock protector for smart locks according to claim 1, characterized in that: The rear end of the lock head linkage flat iron is extended, and the extended part is provided with a groove for easy cutting.
10. The integrated electronic lock protector for smart locks according to claim 1, characterized in that: The flat iron nut has knurling on its outer edge to facilitate turning.