Engaging-disengaging structure and fingerprint lock

A technology of fingerprint lock and connection structure, which is applied in the field of locks, can solve problems such as damage to transmission gears, and achieve the effect of avoiding broken teeth

CN108979330APending Publication Date: 2018-12-11浙江伊牟科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2018-12-11

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Abstract

The invention provides an engaging-disengaging structure and a fingerprint lock, wherein the engaging-disengaging structure includes a protrusion and a cavity which may cooperate with each other to limit the relative rotation of an output shaft and an auxiliary gear; the protrusion is made of an elastic material. When torsion having magnitude of K is applied to the protrusion, the protrusion elastically deforms and slides out of the cavity; K is greater than the magnitude of driving force of the output shaft driving the auxiliary gear to rotate, wherein the protrusion is arranged on the sidewall of the output shaft; the cavity is arranged in the auxiliary gear and is used for being fitted the wall of a shaft hole of the output shaft, and alternatively, the protrusion is arranged on the auxiliary gear and used for being fitted to the wall of the shaft hole of the output shaft; the cavity is arranged in the sidewall of the output shaft. The engaging-disengaging structure can prevent tooth breaking for a transmission gear in a transmission case.
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Description

technical field

[0001] The invention belongs to the technical field of locks, in particular to a clutch structure and a fingerprint lock. Background technique

[0002] Existing fingerprint locks generally include a fingerprint verification unit, a motor that is driven and connected to the fingerprint verification unit, a cover that is driven and connected to the motor, a transmission that is connected between the cover and the motor, and a housing for rotating and installing the cover. , wherein the initial state of the cover is open (relative to the housing open), when the fingerprint verification is passed, the fingerprint verification unit drives the motor to start, the motor transmits the driving force through the gearbox and drives the cover to rotate to the closed state. Since the cover plate in the open state is easily rotated by the action of external force, and the external force acts on the transmission gear of the gearbox through the transmission of the cover plat...

Examples

Embodiment Construction

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0024] In the description of the present invention, it should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0025] It is to be understood that the terms "length", "width", "top", "bottom", "front", "rear", "left", "right", "vertical", "hor...