JPS5819345B2 - portable electric sprayer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a portable electric sprayer that uses a pump to draw up liquid in a container, pressurizes it, and sprays it from a sprayer. The purpose is to provide something that can be performed with maximum power.

Hereinafter, the present invention will be explained based on drawings showing embodiments thereof.

In FIGS. 1 to 4, reference numeral 1 denotes a cylindrical box with an open bottom end, and a base 2 constituting the bottom of the box 1 is attached to the lower interior of the box 1.

Reference numeral 3 denotes a container for storing liquid, and this container 3 is detachably attached by screwing an upper end opening 3' into a cylindrical portion 2' formed on the base 2.

4 is a suction pipe inserted into the base 2, and 5 is a backing interposed between the cylindrical part 2' of the base 2 and the upper end opening 3' of the container 3 to maintain liquid tightness between the two. It is something.

Reference numeral 6 denotes a pump fixed on the base 2, and a suction flow passage 7 is provided between the pump 6 and the base 2, and communicates with the suction pipe 4 arranged approximately in the center of the base 2. .

Reference numeral 8 denotes a discharge pipe provided on the pump 6. The discharge pipe 8 is communicated with a spray device 9 disposed inside the box 1 above, and the spray device 9 is provided with a spray nozzle 10.

Reference numeral 11 denotes a drive device disposed above the base 2. This drive device 11 includes a chassis 12 attached to the base 2 with screws 12', a motor 13 attached to this chassis 12 with screws 13a, and a motor 13 attached to the chassis 12 with screws 13a. A pinion 14 directly connected to the shaft 13', and a gear 151 that meshes with this pinion 14.
, has a crank pin 16 provided on this gear 15, etc.

Reference numeral 17 denotes a lever rotatably supported on a shaft 18 in the chassis 12, and this lever 17 has a long groove 19 at one end with the shaft 18 as its base point, into which the crank pin 16 fits;
A rotation pin 20 is provided at the other end.

This rotation pin 20 is linked to a piston 22 that reciprocates within a cylinder 21 provided in the pump 6.

Reference numeral 23.23' denotes a power battery, which is connected to the motor 13 via a battery lug 24.24' provided on the base 2 and a connecting cord 25°25'.

Reference numeral 26 denotes a battery cover provided at the upper part of the case 1;
6 includes a switch plate 27 whose one end abuts the positive electrode of the power battery 23 and whose other end biases the push button 28 upward;
has been established.

Then, by pressing the push button 28, the switch plate 27
The other end contacts the negative electrode of the power source battery 23', and power is supplied to the motor 13.

The rotation of the motor 13 is transmitted to a pinion 14 and decelerated by a gear 15, and a crank pin 16 causes a lever 17 to reciprocate.

This causes the piston 22 of the pump 6 to reciprocate via the rotation pin 20 provided at the other end of the lever 17, sucking up and pressurizing the liquid in the container 3, and causing the spray nozzle 10 of the spray device 9 to move.
Atomize more outward.

In addition, in FIG. 4, 29 is the lid of the chassis 12,
It is attached with screws 30.

The pivot pin 20 is fitted into a through hole 22' provided at the end of the piston 22, as shown in FIG. of,
The amount of deviation of the crank pin 16 from the pivot point of the lever 17 is made smaller.

Therefore, the power is transmitted from the lever 17 to the piston 22 in a state where the power is increased in inverse proportion to the amount of deviation.

In this case, the power increase is approximately 50 to 100 times the rotational force of the motor 13.

And piston 22/! ζThe applied force is approximately 2 to 4 times 9 for this type of force, so the required torque of the motor 13 is approximately 1
0gcIrL, and as a result, a small and low output motor can exhibit sufficient performance.

Furthermore, since the pump 6 has a structure in which the piston 22 moves back and forth, a relatively large force is required at the time of compression. Since the crank pin 16 located at a far position rotates in the direction of arrow A, the force increasing effect is maximized.

As described above, according to the present invention, the rotation of the motor is converted into reciprocating motion by the crank pin provided on the final gear of the gear group, and the reciprocating motion of the lever is coupled to the pump via the rotating pin. Since the piston is reciprocated, even a small, low-output motor can drive the pump with maximum power, and its configuration is extremely simple. It is something.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a portable electric sprayer showing an embodiment of the present invention, FIG. 2 is a top view of the same sprayer, FIG. 3 is a top view showing the internal structure of the same sprayer, and FIG. 4 is a top view of the same sprayer. It is an exploded perspective view of a pump part and a drive part in a sprayer. 1...Box, 2...Base, 3...
... Container, 6 ... Pump, 9 ... Spray device, 11 ... Drive device, 12 ... Chassis, 13 ... Motor, 14°15...
...Gear group, 16...Crank pin, 17...
... Lever, 20-... Rotating pin, 22-...
····piston.

Claims (1)

[Scope of Claims] 1. A container for storing liquid, a box disposed above the container and having a base, a pump for sucking up and pressurizing the liquid in the container, and 4. The pump includes a drive device that drives the pump, and a spray device that communicates with the discharge side of the pump, and the drive device decelerates and transmits the rotation of the motor to a chassis attached to a base and a motor held by the chassis. Provided in the gear group and the final stage gear of this gear group. and a crank pin that reciprocates a lever supported on the chassis L, and a rotating pin that is provided on the opposite side of the crank pin from the pivot point of the lever and that reciprocates the piston of the pump. Portable electric sprayer. vessel. 2 The pivot pin adjusts the amount of deviation of the lever from the pivot point,
The portable electric sprayer according to claim 1, wherein the amount of deviation of the crank pin from the pivot point of the lever is smaller than the amount of deviation of the crank pin from the pivot point of the lever.