| CPC F16H 19/06 (2013.01) [A47H 5/0325 (2013.01); F16H 57/031 (2013.01); A47H 1/04 (2013.01); F16H 2057/02034 (2013.01); F16H 2057/02073 (2013.01)] | 15 Claims |
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1. A curtain retraction device of an electric curtain, comprising:
a toothed chain, wherein the toothed chain has a first tooth, and a curtain fabric of the electric curtain is configured to be hung from the toothed chain;
an outer housing and a drive motor, wherein the outer housing has a free opening, the outer housing defines an installation space, the free opening is in communication with the installation space, and the toothed chain is configured to extend into the installation space through the free opening;
a reducer, wherein a power output end of the drive motor is inserted into the reducer so that a power output by the drive motor is transmitted to the reducer, the reducer is configured to increase a torque output by the curtain retraction device, and the reducer has a first power output part; and
a power output module comprising a power output shaft, a clutch component and a driving gear, wherein the power output shaft is inserted into the first power output part so that a power for deceleration and torque increase of the reducer is output to the driving gear through the power output shaft, the driving gear is sleeved on an outer side of the power output shaft, the clutch component is arranged between the power output shaft and the driving gear to connect or block a power transmission between the power output shaft and the driving gear, the driving gear has a second tooth, and the second tooth is configured to be engaged with the first tooth,
the drive motor, the reducer and the power output module are all coaxially installed inside the outer housing,
the outer housing comprises a first housing part and a second housing part, the power output module and the toothed chain are arranged inside the first housing part, and the drive motor and the reducer are arranged inside the second housing part,
a limit plate is provided in the second housing part, the limit plate is covered on a side of the reducer facing the first housing part, a quick-release mechanism is installed on the limit plate, the first housing part is detachably connected with the second housing part through the quick-release mechanism, the quick-release mechanism is further configured to lock or unlock a top cover of the second housing part, and the top cover is configured to open or close the second housing part,
the quick-release mechanism comprises an unlock button, a reset element, a transmission gear and a driven paddle, the unlock button and the driven paddle are both engaged with the transmission gear, the unlock button is configured to drive the transmission gear to move the driven paddle, and the unlock button is configured to move from a first position to a second position when the unlock button is pressed, such that the unlock button cooperates with the driven paddle to release the top cover from the second housing part and to release the first housing part from the second housing part,
the reset element is configured to drive the unlock button to move from the second position to the first position, so that the unlock button and the driven paddle lock the top cover at the second housing part and lock the first housing part with the second housing part,
the unlock button has a press part, a driving part, and a first locking pin, the driving part is engaged with the transmission gear, the driven paddle has a driven part and a second locking pin, the driven part is engaged with the transmission gear, in a first direction of the curtain retraction device, the driving part and the driven part are respectively provided on two sides of the transmission gear, the driving part and the driven part extend in opposite directions along a second direction of the curtain retraction device, and the first direction is perpendicular to the second direction, and
in the first position, both the first locking pin and the second locking pin pass through a first installation hole of the top cover and are inserted into a second installation hole of the first housing part, and in the second position, both the first locking pin and the second locking pin protrude out of the first installation hole and the second installation hole.
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