Electronic door lock

Abstract

The utility model discloses an electronic door lock which comprises an outer lock seat and an inner lock seat, a plurality of sets of grooves matched with protrusions are formed in the side portion of a driving cylindrical gear in an annular array mode, and the protrusions are arranged in the grooves. An inserting mechanism and a shifting mechanism for shifting the inserting mechanism are arranged in the inner lock seat; through the design of structures such as the positioning column and the protrusion, the second bevel gear and the driving cylindrical gear are arranged on the positioning column in a sleeving mode, so that the positioning column is positioned through the second bevel gear and the driving cylindrical gear; and the second bevel gear and the driving cylindrical gear can be mutually embedded and matched by matching a bulge on the second bevel gear with a groove in the driving cylindrical gear, so that the second bevel gear and the driving cylindrical gear can be independently detached, if a single gear is damaged, only a fault part needs to be replaced, the whole gear set does not need to be abandoned, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of door lock technology, specifically to an electronic door lock. Background Technology

[0002] In the mechanical transmission systems of modern electronic door locks, the integrated structure of bevel gears and spur gears is widely used for power transmission and direction conversion. This design reduces assembly errors and improves structural compactness by integrating two different types of gears into a non-detachable whole. However, in practical applications, this design still faces several technical bottlenecks that affect the reliability, maintainability, and long-term performance of the door lock.

[0003] While the integrated structure of bevel gears and spur gears improves assembly efficiency, the motor of an electronic door lock starts and stops frequently during use. As transmission components, the bevel gears and spur gears need to withstand impact loads. Once the gear set is partially damaged, such as the bevel gear breaking or the spur gear wearing out, the entire bevel gear or spur gear must be replaced, increasing maintenance costs. Therefore, we need to propose an electronic door lock. Utility Model Content

[0004] The purpose of this invention is to provide an electronic door lock that allows the second bevel gear and the driving cylindrical gear to be disassembled independently. If a single gear is damaged, only the faulty part needs to be replaced, without discarding the entire gear set, thereby reducing maintenance costs and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An electronic door lock includes an outer lock seat and an inner lock seat. The outer lock seat is fixedly mounted on the inner lock seat. A mounting bracket is fixedly mounted inside the inner lock seat. A positioning post is fixedly connected to the mounting bracket. A second bevel gear and a driving cylindrical gear are sleeved on the positioning post. A drive mechanism for driving the second bevel gear is provided on the mounting bracket. The side of the second bevel gear is provided with multiple sets of protrusions in a circular array. The side of the driving cylindrical gear is provided with multiple sets of grooves adapted to the protrusions in a circular array. The protrusions are disposed in the grooves. A clamping mechanism for pressing the second bevel gear and the driving cylindrical gear is provided on the positioning post.

[0007] The inner lock seat is provided with a plug-in mechanism and a toggle mechanism for moving the plug-in mechanism.

[0008] Preferably, the clamping mechanism includes a push ring, a plug-in post, and a push spring. The plug-in post is fixedly connected to the side of the push ring. Both the second bevel gear and the driving cylindrical gear have through holes. The plug-in post is inserted into the through holes and sleeved on the positioning post. The side of the driving cylindrical gear has a receiving groove. One end of the push spring is inserted into the receiving groove, and the other end of the push spring abuts against one side of the push ring. The other side of the push ring abuts against the inner wall of the inner lock seat.

[0009] Preferably, the drive mechanism includes a planetary geared motor and a first bevel gear. The planetary geared motor is fixedly mounted on the side of the mounting bracket, the first bevel gear is fixedly mounted on the output shaft of the planetary geared motor, and the second bevel gear is pressed against the first bevel gear, with the first bevel gear meshing with the second bevel gear.

[0010] Preferably, the insertion mechanism includes a movable seat, a locking rod, and a stop block. A support seat is fixedly installed inside the inner lock seat. A movable groove is opened on the movable seat. The support seat is disposed in the movable groove. The locking rod is fixedly installed on the side of the movable seat and is inserted into the inner lock seat. Two sets of stop blocks are provided. Both sets of stop blocks are integrally formed on the bottom of the movable seat. A toggle groove is left between the two sets of movable seats.

[0011] Preferably, the actuating mechanism includes a lever, a driven cylindrical gear, and a handle. The handle is movably installed in the inner lock seat. The end of the handle is integrally formed with a square post. The lever has a square groove corresponding to the square post. The square post is inserted into the square groove. The lever is fixedly installed on the handle by a fixing bolt. One end of the lever is located in the actuating groove.

[0012] Preferably, the driven cylindrical gear is fixedly mounted on the side of the lever, the handle is inserted into the driven cylindrical gear, and the driven cylindrical gear meshes with the driving cylindrical gear.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention utilizes a design incorporating a positioning post and protrusions. A second bevel gear and a driving cylindrical gear are fitted onto the positioning post, allowing them to be positioned. The protrusion on the second bevel gear engages with the groove on the driving cylindrical gear, enabling them to mesh and cooperate. This allows for independent disassembly of the second bevel gear and the driving cylindrical gear. If a single gear is damaged, only the faulty component needs to be replaced, eliminating the need to discard the entire gear set and reducing maintenance costs. Attached Figure Description

[0015] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0016] Figure 2 This is the second structural schematic diagram of the present invention;

[0017] Figure 3 This is one of the partial structural schematic diagrams of this utility model;

[0018] Figure 4 This is a second partial structural schematic diagram of the present invention;

[0019] Figure 5 This is the third partial structural schematic diagram of the present invention;

[0020] Figure 6 This is one of the structural schematic diagrams of the positioning post, the second bevel gear, and the driving cylindrical gear of this utility model;

[0021] Figure 7 This is the second schematic diagram of the positioning post, the second bevel gear, and the driving cylindrical gear of this utility model;

[0022] Figure 8 This is one of the structural schematic diagrams of the second bevel gear, the driving cylindrical gear, the push ring, and the plug-in column of this utility model;

[0023] Figure 9 This is the second schematic diagram of the structure of the second bevel gear, the driving cylindrical gear, the push ring, and the plug-in column of this utility model;

[0024] Figure 10 This is a schematic diagram of the structure of the second bevel gear and the driving cylindrical gear of this utility model;

[0025] Figure 11 This is a schematic diagram of the handle of this utility model.

[0026] In the diagram: 1. Outer lock seat; 2. Inner lock seat; 3. Lever; 4. Driven cylindrical gear; 5. Moving seat; 6. Locking rod; 7. Support seat; 8. Moving slot; 9. Stop block; 10. Actuating slot; 11. Mounting bracket; 12. Battery compartment; 13. Planetary geared motor; 14. First bevel gear; 15. Positioning pin; 16. Second bevel gear; 17. Driving cylindrical gear; 18. Storage slot; 19. Push ring; 20. Push spring; 21. Through hole; 22. Insertion pin; 23. Display panel; 24. Protrusion; 25. Groove; 26. Handle; 27. Square pin; 28. Square slot; 29. ​​Input panel; 30. Fingerprint reader; 31. Control circuit board. Detailed Implementation

[0027] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-11 This utility model provides a technical solution:

[0029] An electronic door lock includes an outer lock seat 1 and an inner lock seat 2. The outer lock seat 1 is fixedly installed on the inner lock seat 2. An installation frame 11 is fixedly installed inside the inner lock seat 2. A positioning post 15 is fixedly connected to the installation frame 11. A second bevel gear 16 and a driving cylindrical gear 17 are sleeved on the positioning post 15. A drive mechanism for driving the second bevel gear 16 is provided on the installation frame 11. The side of the second bevel gear 16 is provided with a plurality of protrusions 24 in a circular array. The side of the driving cylindrical gear 17 is provided with a plurality of grooves 25 adapted to the protrusions 24 in a circular array. The protrusions 24 are disposed in the grooves 25. A clamping mechanism for clamping the second bevel gear 16 and the driving cylindrical gear 17 is provided on the positioning post 15.

[0030] The inner lock seat 2 is equipped with a plug-in mechanism and a toggle mechanism for moving the plug-in mechanism.

[0031] It should be noted that the second bevel gear 16 and the driving cylindrical gear 17 can be disassembled and replaced independently by the cooperation of the protrusion 24 and the groove 25. If a single gear is damaged, only the faulty part needs to be replaced, without discarding the entire gear set, thus reducing maintenance costs. In addition, the torque transmission can be ensured without slippage by ensuring that the axial and circumferential positions of the two gears are precisely aligned.

[0032] In an optional embodiment: the clamping mechanism includes a push ring 19, a plug pin 22 and a push spring 20. The plug pin 22 is fixedly connected to the side of the push ring 19. The second bevel gear 16 and the driving cylindrical gear 17 are both provided with through holes 21. The plug pin 22 is inserted into the through holes 21 and sleeved on the positioning pin 15. The side of the driving cylindrical gear 17 is provided with a receiving groove 18. One end of the push spring 20 is inserted into the receiving groove 18, and the other end of the push spring 20 is pressed against one side of the push ring 19. The other side of the push ring 19 is pressed against the inner wall of the inner lock seat 2.

[0033] It should be noted that by using the push ring 19, the plug-in post 22 and the push spring 20 together, the second bevel gear 16 and the driving cylindrical gear 17 can be pressed and fixed, eliminating axial misalignment between the gears, improving the stability of the second bevel gear 16 and the driving cylindrical gear 17 after installation, and avoiding meshing noise caused by high-frequency start and stop.

[0034] In an optional embodiment: the drive mechanism includes a planetary geared motor and a first bevel gear. The planetary geared motor is fixedly mounted on the side of the mounting bracket, the first bevel gear is fixedly mounted on the output shaft of the planetary geared motor, and a second bevel gear 16 is pressed against the first bevel gear 14, with the first bevel gear 14 meshing with the second bevel gear 16.

[0035] In an optional embodiment: the insertion mechanism includes a movable seat 5, a locking rod 6 and a stop block 9. A support seat 7 is fixedly installed inside the inner lock seat 2. A movable groove 8 is opened on the movable seat 5. The support seat 7 is disposed in the movable groove 8. The locking rod 6 is fixedly installed on the side of the movable seat 5 and is inserted into the inner lock seat 2. Two sets of stop blocks 9 are provided. Both sets of stop blocks 9 are integrally formed on the bottom of the movable seat 5. A toggle groove 10 is left between the two sets of movable seats 5.

[0036] It should be noted that the support base 7, together with the moving groove 8, plays a role in supporting, preventing slippage and guiding the moving base 5, so that the moving base 5 can move stably within the inner locking base 2.

[0037] In an optional embodiment: the actuating mechanism includes a lever 3, a driven cylindrical gear 4, and a handle 26. The handle 26 is movably installed in the inner lock seat 2. The end of the handle 26 is integrally formed with a square post 27. The lever 3 has a square groove 28 corresponding to the square post 27. The square post 27 is inserted into the square groove 28. The lever 3 is fixedly installed on the handle 26 by a fixing bolt. One end of the lever 3 is set in the actuating groove 10.

[0038] It should be noted that the square groove 28 and the square post 27 cooperate to enable the lever 3 to rotate and move the moving seat 5 when the handle 26 is turned, thereby unlocking.

[0039] In an optional embodiment: the driven cylindrical gear 4 is fixedly mounted on the side of the lever 3, the handle 26 is inserted into the driven cylindrical gear 4, and the driven cylindrical gear 4 meshes with the driving cylindrical gear 17.

[0040] The outer lock base 1 has a display panel 23, an input panel 29, and a fingerprint reader 30 fixedly installed inside. The inner lock base 2 has a control circuit board 31 and a battery compartment 12. The battery compartment 12, display panel 23, input panel 29, and fingerprint reader 30 are all electrically connected to the control circuit board 31. The battery compartment 12 has multiple sets of batteries for power supply. The display panel 23 is a low-power LCD used to display status information (such as power level and unlocking records). The input panel 29 is used for password input, and the fingerprint reader 30 is used to recognize fingerprints.

[0041] When the second bevel gear 16 or the driving cylindrical gear 17 is damaged and needs to be replaced, the door lock is disassembled, and the second bevel gear 16 and the driving cylindrical gear 17 are removed from the positioning post 15. The second bevel gear 16 and the driving cylindrical gear 17 are separated. The damaged second bevel gear 16 or the driving cylindrical gear 17 is disassembled and replaced. After replacing the second bevel gear 16 or the driving cylindrical gear 17, the protrusion 24 on the side of the second bevel gear 16 is aligned with the groove 25 on the side of the driving cylindrical gear 17, and the second bevel gear 16 and the driving cylindrical gear 17 are engaged. The push spring 20 is then sleeved on... Inside the storage slot 18, the plug 22 is inserted into the through hole 21 of the second bevel gear 16 and the driving cylindrical gear 17. Then, the plug 22 is sleeved on the second bevel gear 16 and the driving cylindrical gear 17. After the door lock is installed, the push ring 19 presses the plug 22, so that the plug 22 can push the driving cylindrical gear 17 and apply pressure to the driving cylindrical gear 17, so that the driving cylindrical gear 17 is always in close contact with the second bevel gear 16. While eliminating gear gap, it can press and fix the second bevel gear 16 and the driving cylindrical gear 17, improving the stability of the second bevel gear 16 and the driving cylindrical gear 17 after installation.

[0042] When unlocking is required, the user can enter a pre-stored password via the password keypad on the input panel 29, or unlock by recognizing a fingerprint via the fingerprint reader 30. The input signal is processed by the control circuit board 31. If the password or fingerprint is successfully matched, the planetary gear motor 13 is started by the control circuit board 31. The output shaft of the planetary gear motor 13 rotates, driving the first bevel gear 14 to rotate. When the first bevel gear 14 rotates, it drives the second bevel gear 16 to rotate. When the second bevel gear 16 rotates, it works with the protrusion 24 and the groove 25 to drive the driving cylindrical gear 17 to rotate. When the driving cylindrical gear 17 rotates, it drives the driven cylindrical gear 4 to rotate. When the driven cylindrical gear 4 rotates, it drives the lever 3 to rotate. When the lever 3 rotates, it moves the moving seat 5 via the stop block 9, causing the moving seat 5 to move the lock rod 6 into the inner lock seat 2, at which point unlocking can be performed.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electronic door lock comprising an outer lock housing (1) and an inner lock housing (2), characterized in that: The outer lock seat (1) is fixedly installed on the inner lock seat (2), the inner lock seat (2) is fixedly installed with a mounting frame (11) inside, the mounting frame (11) is fixedly connected with a positioning column (15), the positioning column (15) is sleeved with a second bevel gear (16) and a driving cylindrical gear (17), the mounting frame (11) is provided with a driving mechanism for driving the second bevel gear (16), the side of the second bevel gear (16) is annularly arranged with a plurality of groups of protrusions (24), the side of the driving cylindrical gear (17) is annularly arranged with a plurality of groups of grooves (25) matched with the protrusions (24), the protrusions (24) are arranged in the grooves (25), the positioning column (15) is provided with a pressing mechanism for pressing the second bevel gear (16) and the driving cylindrical gear (17). The inner lock seat (2) is provided with a plug-in mechanism inside, and a driving mechanism for driving the plug-in mechanism.

2. An electronic door lock according to claim 1, characterized in that: The pressing mechanism comprises a push ring (19), a plug-in column (22) and a push spring (20), the plug-in column (22) is fixedly connected to the side of the push ring (19), the second bevel gear (16) and the driving cylindrical gear (17) are both provided with through holes (21), the plug-in column (22) is plugged into the through holes (21), the plug-in column (22) is sleeved on the positioning column (15), the side of the driving cylindrical gear (17) is provided with a receiving groove (18), one end of the push spring (20) is plugged into the receiving groove (18), the other end of the push spring (20) abuts against one side of the push ring (19), the other side of the push ring (19) abuts against the inner wall of the inner lock seat (2).

3. An electronic door lock according to claim 1, characterized in that: The driving mechanism comprises a planetary reduction motor (13) and a first bevel gear (14), the planetary reduction motor (13) is fixedly installed on the side of the mounting frame (11), the first bevel gear (14) is fixedly installed on the output shaft of the planetary reduction motor (13), the second bevel gear (16) is pressed on the first bevel gear (14), the first bevel gear (14) is engaged with the second bevel gear (16).

4. The electronic door lock of claim 1, wherein: The plug-in mechanism comprises a moving seat (5), a lock rod (6) and a stop block (9), the inner lock seat (2) is fixedly installed with a support seat (7) inside, the moving seat (5) is provided with a moving groove (8), the support seat (7) is arranged in the moving groove (8), the lock rod (6) is fixedly installed on the side of the moving seat (5), the lock rod (6) is plugged into the inner lock seat (2), the stop block (9) is provided with two groups, the two groups of stop blocks (9) are integrally formed on the bottom of the moving seat (5), and the two groups of moving seats (5) are left with a driving groove (10).

5. The electronic door lock of claim 1, wherein: The dialing mechanism comprises a dialing rod (3), a driven cylindrical gear (4) and a handle (26), the handle (26) is movably installed in the inner lock seat (2), the end of the handle (26) is integrally formed with a square column (27), the dialing rod (3) is provided with a square groove (28) corresponding to the square column (27), the square column (27) is inserted into the square groove (28), the dialing rod (3) is fixedly installed on the handle (26) through a fixing bolt, and one end of the dialing rod (3) is arranged in the dialing groove (10).

6. An electronic door lock according to claim 5, characterized in that: The driven cylindrical gear (4) is fixedly installed on the side of the dialing rod (3), the handle (26) is inserted into the driven cylindrical gear (4), and the driven cylindrical gear (4) is engaged with the driving cylindrical gear (17).

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