门锁的齿轮传动结构及玻璃门锁
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN FENDA SMART HOME CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-07-17
AI Technical Summary
Existing glass door locks have gear mechanisms with small transmission ratios, small motor output torque amplification factors, and small bolt torque, resulting in insufficient thrust. The small transmission ratio also leads to a small reduction in motor speed, fast bolt engagement and disengagement speed, large impact force, high noise, and high cost.
It adopts four pairs of plastic gear transmission pairs, including the first bevel gear, the second bevel gear, the first spur gear, the second spur gear, the third spur gear, and the locking tongue assembly. Through the combination of bevel gears and spur gears, the transmission ratio is increased, noise is reduced, and service life is extended.
It achieves a high gear transmission ratio, reduces the speed at which the lock tongue engages and disengages, reduces impact force, lowers noise, extends the lifespan of the lock, and reduces manufacturing costs.
Smart Images
Figure CN224514937U_ABST
Abstract
Claims
1. A gear train for a door lock, characterised in that, include: The first bevel tooth is fastened to the output shaft of the motor, and the front end of the first bevel tooth is a first conical tooth portion; The second bevel tooth has a first straight tooth at its upper end and a second conical tooth at its lower end. The second conical tooth is connected to the first conical tooth, and the number of teeth in the second conical tooth is greater than the number of teeth in the first conical tooth. The first straight tooth has a second straight tooth portion at its upper end and a third straight tooth portion at its lower end. The second straight tooth portion is connected to the first straight tooth portion in a transmission manner, and the number of teeth in the second straight tooth portion is greater than the number of teeth in the first straight tooth portion. The second straight tooth has a fourth straight tooth portion at its upper end and a fifth straight tooth portion at its lower end. The fourth straight tooth portion is connected to the third straight tooth portion in a transmission manner, and the number of teeth in the fourth straight tooth portion is greater than the number of teeth in the third straight tooth portion. The third straight tooth is connected to the fifth straight tooth section in a transmission manner. The number of teeth in the third straight tooth section is greater than the number of teeth in the fifth straight tooth section. A dial wheel is coaxially mounted on the third straight tooth. A latch assembly, comprising a latch bracket and a latch, wherein the latch is fastened to the latch bracket and the latch bracket can drive the latch to slide, and a dial is connected to the latch bracket for transmission.
2. The gear train of a door lock according to claim 1, wherein The third straight tooth is also coaxially mounted with a knob, which can be rotated to drive the third straight tooth.
3. The gear train of a door lock according to claim 1, wherein The dial includes a mounting part, a shifting part, and a thrusting part. The mounting part is coaxially mounted with the third spur tooth, the shifting part is inserted into the locking tongue bracket, and the thrusting part is equipped with a thrust spring.
4. The gear train of a door lock according to claim 3, wherein The latch bracket is provided with a shift fork groove, and the shifting part is inserted into the shift fork groove for installation.
5. The gear train of a door lock according to claim 4, wherein The latch bracket is provided with a sliding groove, and the latch bracket can slide along the sliding groove.
6. The gear train of a door lock according to claim 1, wherein It also includes a circuit board, which is electrically connected to the motor and controls the motor to drive the first bevel gear in both directions.
7. A gear train for a door latch as claimed in claim 6, wherein, It also includes a battery compartment, which is electrically connected to the circuit board, and a battery is installed in the battery compartment to power the circuit board.
8. The gear train of a door lock according to claim 6, wherein It also includes a control switch that abuts against the circuit board; pressing the control switch can drive the motor to rotate forward or reverse; and / or, It also includes a loudspeaker, which is electrically connected to the circuit board, and the circuit board controls the loudspeaker to emit a prompt tone.
9. The gear transmission structure of the door lock as described in claim 6, characterized in that, The circuit board is equipped with a sensor switch, and the latch bracket is equipped with a sensor head. When the sensor head reaches the sensor switch, the circuit board controls the motor to stop.
10. A glass door lock characterized by, The lock includes a gear transmission structure and a housing as described in any one of claims 1-9, wherein the gear transmission structure of the lock is mounted on the housing.