Clutch convenient for manual unlocking and door lock

Abstract

The invention discloses a clutch convenient for manual unlocking. The clutch comprises an input gear, a transmission part, a clutch body, and a manual gear, wherein the input gear is provided with a first inner side wall; a main body of the transmission part and the input gear are coaxially arranged, the main body of the transmission part is provided with an outer side wall, the outer side wall is provided with at least one first notch, and the area between the first notch and the first inner side wall is a switching area; the clutch body is arranged in the switching area, when the clutch body is clamped at the end limiting position of the switching area, the input gear is connected with the transmission part, and when the clutch body is not located at the end limiting position of the switching area, the input gear is separated from the transmission part; and the manual gear and the input gear are coaxially arranged, the manual gear is provided with an unlocking shifting part, and the unlocking shifting part is arranged between the first inner side wall and the outer side wall. The unlocking shifting part can shift the clutch body to leave the end of the switching area, and after the clutch body leaves the end of the switching area, the manual gear can drive the transmission part to rotate. The door lock comprises the clutch and a shell.

Description

technical field [0001] The invention relates to a clutch and a door lock which are convenient for manual unlocking. Background technique [0002] With the increasing demand for smart locks, fully automatic smart locks are popular because they can automatically lock and unlock. The key to the automatic locking and unlocking of the automatic smart lock is that it uses a fully automatic lock body, and it is particularly important whether the fully automatic lock body can be unlocked freely under special circumstances, and it needs to rely on the clutch to achieve. When the clutch is disengaged, the power of the mechanical key to unlock the lock can directly act on the extension or retraction of the deadbolt, instead of driving the motor to reverse to overcome additional resistance. For some gear boxes that use worm gear reduction or a large reduction ratio, the effectiveness and reliability of the clutch basically represent the quality of the lock body. [0003] In case of sp...

AI Technical Summary

Problems solved by technology

[0004] However, the above two mainstream clutch release methods, the former requires the key to be rotated at a certain angle to push the unlocking plate, and the latter needs to rely on the motor to reverse a certain number of turns to disengage the swing arm planets, which has certain limitations.

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