JPS5830611Y2 - portable sprayer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a portable atomizer that uses a pump to draw up liquid in a container, pressurizes the liquid, and causes the atomizer to spray the liquid.

In general, in sprayers, if a drop in pressure occurs inside a container storing liquid, the container may become deformed, or the drop in pressure may cause poor suction of the liquid, making it impossible to spray normally. The container is prevented from deforming by providing small holes in some parts of the sprayer, but in this case, the container cannot be kept airtight or liquid-tight at all times, so if the sprayer is tipped over, liquid may leak. There was a drawback that it occurred.

The present invention solves the above-mentioned drawbacks by simplifying the structure, and the present invention will be explained below based on the drawings showing the embodiments thereof.

1 to 3, 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.

3 is a plastic container for storing liquid; this container 3
is detachably attached by screwing the upper end opening 3' into the cylindrical part 2' formed on the base 2.

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

6 is a pump fixed on a base 2, a suction passage 7 is provided between the pump 6 and the base 2, and the end of the base 2 is communicated with a suction pipe 4 arranged in the center of the coast. ing.

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', and a motor 13 attached to the chassis 12.
, a pinion 14 directly connected to the shaft 13' of this motor 13.
, a gear 15 meshing with this pinion 14, this gear 15
It has a crank pin 16 etc. provided in the.

Reference numeral 17 denotes a lever rotatably supported on the chassis 12 by a shaft 18. This lever 17 has a long groove 19 at one end into which the crank pin 16 fits, with the shaft 18 as a base point, and a rotation pin at the other end. There are 20.

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

Reference numerals 23 and 23' denote power batteries, which are connected to the motor 13 by means of battery lugs 24 and 24' provided on the base 2 and connection cords 25 and 25'.

Reference numeral 26 denotes a battery cover provided at the upper part of the case 1;
6 has a - end in contact with the positive electrode of the power supply battery 23,
The other end is provided with a switch plate 27 that always biases the push button 28 in the Ll direction.

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 this 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.

Two are ventilation holes provided in the base 2, which communicate the inside of the container 3 with the atmosphere.

Reference numeral 30 denotes a valve part that is provided in a part of the liquid-tight backing 5 and opens and closes the vent hole 29. On the outside of this valve part 30, that is, at a position shifted from the vent (Li2), as shown in FIG. A semicircular through hole 31 is provided in the valve portion 30 so that the valve portion 30 is movable.

Reference numeral 32 denotes a protrusion provided on the valve portion 30, which fits into the vent hole 29.

When the pressure inside the container 3 is high, the valve portion 30 has a protrusion 32 that closes the vent hole 29 to maintain an airtight state.

However, when the liquid in the container 3 decreases from position A to position B in FIG. 1 due to spraying, the pressure inside the container 3 decreases by the amount of the decrease, and the atmospheric pressure pushes down the valve part 30.
Open the ventilation hole 29.

As a result, air enters into the container 3 via the ventilation hole 29 and the through hole 31.

When the pressure inside the container 3 becomes the same as atmospheric pressure, the valve part 3
0 moves upward and closes the ventilation hole 29 with the protrusion 32, making it airtight.

Therefore, even if the sprayer is turned over, the liquid will not flow out.

Figures 1 to 8 show other embodiments of the valve part.
(Figure 5 shows four annular parts 33, 33' on the outer periphery of the valve part 30)
-T', and a communication hole 34 is provided between the recesses 33 below the bow.

Further, in FIG. 6, an annular mark 35 is provided on the outer periphery of the valve portion 30 only at the upper side, and a communication hole 36 is provided.

FIG. 7 also shows the protrusion 32 in FIG. 4 omitted.

Furthermore, in FIG. 8, abbreviated-shaped through holes 37 and 37' are provided on the outside of the valve portion 30, and these valve portions have the same function as the valve portion in the above embodiment. It is something that does.

As described above, according to the present invention, a ventilation hole is provided in the base provided in the box to communicate the inside of the container with the atmosphere, and a liquid-tight backing is provided to ensure liquid-tightness when the container and the box are attached. A movable valve part is provided in a part of the container that normally closes the vent hole and opens the vent hole when the liquid in the container decreases, and a movable valve part is provided at a position offset from the vent hole to connect the inside of the container and the atmosphere. Since a through-hole is provided for communication, the container will not be deformed due to a drop in the pressure inside the container, and there will be no problems with liquid suction or leakage, and the vent hole in the base will not be normally blocked by the valve. Therefore, even if the sprayer is tipped over, the liquid inside the container will not flow out.

Furthermore, since the valve part is constructed using a part of the liquid-tight backing that ensures liquid-tightness when the container and the case are attached, the valve mechanism consisting of a spring, valve body, etc. is separate from the conventional valve mechanism. The structure is simplified and the assembly workability is improved compared to the one provided in the previous section, and therefore, it is possible to provide a practical product at a lower cost.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional view of a portable 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. Figures 5 to 8 show other embodiments of the liquid-tight backing, and Figure 5 shows the main parts of the sprayer.
Figures 6 to 8 are diagonal views of the liquid-tight backing.
This is a perspective view. 1...Box, 2...Base, 3...
...Container, 5...Liquidtight backing, 6...
... Pump, 9... Spray device, 11...
・Drive device, 29...Vent hole, 30...
・Bent part.

Claims (1)

[Scope of utility model registration request] A container for storing a liquid, a box detachably attached to the container via a liquid-tight backing and having a base, a pump for sucking up and pressurizing the liquid in the container, and driving the pump. a driving device, and a spraying device communicating with the discharge side of the pump; a ventilation hole is provided in the base for communicating the inside of the container with the atmosphere; and the ventilation hole is provided in a part of the liquid-tight backing at all times. A movable valve portion is provided to close the vent hole and open the vent hole when the liquid in the container decreases, and a through hole is provided at a position offset from the vent hole to communicate the inside of the container with the atmosphere. A portable sprayer with special features.