Power device for a perfume sprayer

A vertical pushing device for a perfume sprayer having a base member, a motor connected to the base member, an eccentric gear linked to the motor, a sliding block connected to a guide rail to the base, a switch member connected to the motor and interactive with a movement of a push board of the sliding block, and a controller for actuating the motor in response to signals from the switch. The push board of the sliding block contacts the nozzle of the perfume cannister so as to dispense perfume relative to a movement of the sliding block. The sliding block has a long hole which receives the eccentric gear therein.

BACKGROUND OF THE INVENTION 
1. Field of the Invention 
The invention relates to a power device for a perfume sprayer. More 
particular, the present invention relates to a device which can be pushed 
up and down vertically to control the spray amount of the perfume. 
2. Prior Art 
A conventional power device for a perfume sprayer uses a gear board as a 
rocking bar to push down a nozzle of a freshener. 
When the nozzle is suddenly pushed down to the lowest end, because a motor 
is bearing a sudden resistance, the motor will induce a circuit to stop 
the motion of the motor, and push it up back to the highest point. Since 
it is under continual over-pressure, the movement is in accordance with 
electronic induction. As a result, much unnecessary power is wasted and 
its battery loss is tremendous. Also, this movement has no alternative; 
that is, after each push, the nozzle must return to its original point. 
SUMMARY OF THE INVENTION 
To save unnecessary losses and to increase alternatives for the cycling of 
push and movement, the present invention provides a power device of 
mechanical control. By means of that, when push movement reaches a set 
point, it will automatically stop to avoid unnecessary losses. Also, 
positions for the push mechanism to stop the power can be located either 
on an upper portion to open the nozzle of the freshener, or on a lower 
portion to close it. In other words, when the nozzle of freshener is 
pushed down, it will constantly remain open, and when it is not pushed 
down, it will be closed. In this way, the power gear can control the spray 
time, and no unnecessary power will be wasted. 
The present invention provides a vertical pushing power device for a 
perfume sprayer. It is comprised of a base, a gear unit, an eccentric 
gear, sliding blocks, and a circuit board switch. The base is a case for 
all power members, including a motor, a circuit board, a gear pin, a guide 
rail for the sliding block, and switch sockets. At the bottom of the base, 
there extends a clamping mouth shaped like a "c". The gear unit is mounted 
on the base driven by motors and is linked to a power transmission 
mechanism of an eccentric. A set of sliding blocks of an eccentric is an 
eccentric gear set in a long hole in the center of a sliding block. When 
the eccentric gear rotates, the sliding block will move up and down 
vertically. A push board extends from one side of the sliding block. A 
feature of the present invention is that a pair of "C" shaped retainers 
hold the freshener firmly at a positioning point. The sliding block works 
effectively and so moves up and down vertically. The bottom surface is a 
contact surface to push down the nozzle of the freshener. An upper 
starting point on the push board of the sliding block is a positioning 
point to push the switch to stop the power gear when it completes a period 
of movement. 
The vertical pushing power device for a perfume sprayer, as mentioned 
above, has the two switches which are respectively fixed on the upper 
starting point on the push board of the sliding block so as to make the 
nozzle pushing movement to become two semi-periods which alternately move.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
As shown in FIG. 1, the present invention is a power gear which is mounted 
on the upper portion of a perfume sprayer and which can supply a push 
motion moving vertically up and down. The perfume sprayer is comprised of 
a main body (1), a base (2) for a power device, a power gear (3), and an 
electric controller (4). The main body (1) includes a back cover (11), a 
front cover (12), and a case (13). The power gear (3), base (2), and 
electric controller (4) are accommodated in case (13). In other words, 
they are mounted on the upper portion of the main body (1). The lower 
section of the main body (1) accommodates a disposable freshener. A 
sliding block (35)--is used to push down a nozzle on the top of the 
freshener (5). When the sliding block (35) moves down, the nozzle (51) 
will be pushed down to spray perfume out of the freshener. When the 
gliding block (35) moves upward, nozzle (51) will automatically pop up to 
close the mouth of the freshener and prevent the perfume from being 
sprayed out. 
As shown in FIG. 2, the elements and parts of the above mentioned power 
device are combined and displayed. The base (2) is a support and 
accomodates each power member. A support (21) for the motor is fixed on 
the right side of base (2). A shaft hole (211) penetrates through the 
support. A pair of hooks (212) are mounted on the support (21) and the 
main body of the motor is retained by hooks (212). The shaft of the motor 
is retained by hooks (212). The shaft of the motor extends outside of the 
base through shaft hole (211). A small gear (32) is set on the motor 
shaft. On the left side of the motor support, there is a pair of shaft 
pins (22, 23), and a gear (33) is set on the shaft pin (22) and a terminal 
gear (34) is slidingly set on the shaft pin (23) to form a unit of 
reduction gears. An eccentric gear (342) is provided on a terminal gear 
(34). On the side of the shaft pin (23) of the terminal gear, there is 
disposed a sliding notch (24) which receives a sliding block (35). The 
main body of the block (35), shaped like a long board, has a follow board 
(353) extending from its left side. The sliding block (35) has a long hole 
(352) at its center, and an eccentric (342) is slidingly set in the long 
hole (352). The eccentric (342) is pushed along the upper and lower walls 
of the long hole (352) and moves vertically up and down in the sliding 
notch (24). 
A clamping mouth (25), shaped like a mouth, is used to clamp the neck (52) 
of sprayer (5) so as to keep a steady distance between the sprayer (5) and 
sliding block (35). The sliding notch (24) has a notch opening (241) on 
its left side so as to let the follow board (353) of the sliding block 
(35) extend out of the notch opening (241). A circuit panel (41) of an 
electric controller (4) and a battery (43) can be fixed on the base (2). 
In particular, one of the two switches (44) or (44, 45) used to stop its 
motion can be fixed on the circuit. The switch (44, 45) can be moved by 
the push or touch from the follow board (353). 
As shown in FIG. 3, when only one stop switch (44) is provided on the upper 
portion of the base (2), and when sliding block (35) reaches the starting 
point, the follow board (353) will push down the switch (44) to start the 
circuit so as to stop the starting power gear (3) of the switch motor, and 
then the circuit waits until the next direction to start the motor, and so 
a period of motion is completed. When each period is in motion, the follow 
board (353) will move away from the switch (44) and then return to push 
down the switch, so a periodic motion will be completed from its moving 
away to its returning. 
As shown in FIG. 3, the switch (44) is designed in a way that each time the 
sprayer sprays perfume, the sliding block (35) will push down the nozzle 
(51) once, and then it will return to its original point immediately. 
As shown in FIGS. 4 and 5 there are two switches (44, 45) disposed on the 
upper and lower starting points of the sliding block (35). The sliding 
block (35) is at rest either when it reaches the upper starting point or 
when it reaches the lower starting point. In other words, when sliding 
block (35) is in semi-periodic motion, it means that nozzle (51) will keep 
a period of rest, or it means that when nozzle (51) is pushed down, it 
keeps open permanantly. When it returns and extends to keep itself closed, 
the period of spray can be controlled by controlling the rest period of 
the lower starting point; in this way, the amount of spraying perfume can 
be controlled. 
Above all, the present invention, a power device for perfume sprayer of 
vertical pushing type, can adjust the amount of perfume that is sprayed. 
This kind of function is superior to the conventional fresheners. When the 
nozzle is pushed down, the power gears of the present invention can be 
maintained at the lower starting point of the eccentric, such that it 
sprays continually. Under such circumstances, there is no excessive use of 
power to maintain the continuous spraying. The present invention reduces 
power consumption and operates more efficiently than conventional 
sprayers.