JPS6014532Y2 - sprayer - Google Patents

Description

[Detailed description of the invention] This invention relates to a sprayer in which a main body case and a tank are formed so as to be separable, and in particular relates to a structure for draining spray liquid, rainwater, etc. that has entered the main body case. The details will be explained based on the drawings.

A is a main body case, which has a handle part 1 at the top, and constitutes a battery storage part 5 in the middle part of which holds batteries 41 and 42 sandwiched between an anode plate 2 and a cathode plate 3, and the cathode plate 3 is It is fixed to a replacement lid 6 that is screwed onto the rear wall of the main body case A with a gap maintained.

A motor 7 serving as a drive source and a pump 9 whose power is transmitted through joints 81 and 82 are fixed to the same chassis 11 on the lower shelf 5a of the battery storage section 5, and are mounted on the bottom wall 12.
It is installed in the center position with a screw 13.

That is, the motor 7 and the pump 9 are mounted on the bottom wall 12 by the chassis 11 in a raised state.

The anode terminal 7a of the motor 7 is connected to the anode plate 2 and the lead wire 14.
The cathode terminal 7a is connected to the cathode plate 3 and the lead wire 15 through the lead-out hole 5al95a formed in the shelf board 5a, respectively.
It is connected through 2.

A window 13 is provided in the center of the bottom wall 12, and the pump 9 is inserted through this window.
A suction pipe 14 is made to protrude, and a female threaded portion 15 is provided protruding from the outer periphery around this window 13.

B is a tank having an opening 16 for replenishing the spray liquid C on its upper surface, and a female threaded part for connecting the main body case A and the tank B by screwing into the female threaded part 15 at the periphery of the opening 16. 17 are drilled.

18 is an elastic waterproof plate that closes the opening 16 and has approximately the same area as the female threaded portion 17, and is made of, for example, neoprene rubber.
It is made of silicone rubber, etc., and has a pipe plate protrusion 19 integrally shaped in the central part (see Fig. 2), and this protrusion 19 is fitted into the suction pipe 14 to be in almost intimate contact with the bottom wall 12 of the main body case A. It is fixed at

In addition, a small hole 20 for air inflow is bored in the middle part, and the periphery of the hole 20 is sandwiched between the main body case A and the tank B when they are connected.

In addition, 21 in the figure is the discharge pipe 22 of the pump 9 and the main body case A.
Connector 23 fixed to the front wall a1 with a gap
The outer end of the connector 23 is connected to a spray nozzle (not shown) by a hose 24.

Reference numeral 25 denotes a drain hole for discharging rainwater, etc. of the spray liquid C1 that has entered the main body case A.

This drain hole 25 is located in the bottom wall 12 of the main body case A.
It is formed at a position where the main body case A and the tank B face each other, and a part thereof is opened toward a space S that communicates with the outside.

Therefore, the spray liquid, rain water, etc. that have entered the main body case A are actively discharged from the drain hole 25 opened in the bottom wall 12 located at the lowest height in the main body case A. a motor 7 disposed in a raised state on 12;
Occurrence of rust in the drive source of the pump 9, etc. 1. Negative effects such as contact failure can be effectively prevented.

Moreover, since the drain hole 25 opens toward the space S formed at the opposing position of the main body case A and the tank B, the drain hole 25 itself is
Although the outer shell actively protects the container from the intrusion of foreign objects and collisions with other objects, the water discharged from the drain hole 25 cannot be reliably discharged to the outside through the space S. It is now possible to do so.

In other words, since sprayers are used outdoors and in work environments where spraying is carried out through the branches and leaves of plants, collisions with other objects such as branches and garden stones are likely to occur.
There is a risk that the water drain hole 25 will be crushed and will no longer function as its original water drain mechanism.

However, in this device with the above structure, the water drain hole 2 is connected to the main body case A and the tank B.
5 itself, effectively preventing foreign matter from entering through the drain hole 25 and collision with other objects, and furthermore, the existence of the space S communicating with the outside prevents the water from draining inside the main case A. There is no obstruction.

In addition, if you continue to use this sprayer, the pressure inside tank B will decrease, so the side of tank B and the elastic waterproof plate 18 will be slightly pressured by the external pressure, so the waterproof plate 18, which is easy to deform, will be affected first. With the periphery and center fixed, it bends inward as shown by the broken line in Figure 1, so that the bottom wall 1
From the window 13 of 2, as shown by the solid line P in Figure 1, the main body case A
When the air flows in and the sides of the tank B return to their original state and the pressure balance is balanced, the waterproof plate 18 also comes into close contact with the bottom wall 12.

Of course, the air inside the main body case A is removed by the replacement lid 6 and the connector 23.
Water flows into the main body case A through gaps that are always present at several places in the main body case A, such as the mounting points and the water drain holes 25.

In this way, the internal pressure of the tank B is always maintained at an appropriate value, and even if the sprayed liquid C in the tank B undergoes severe vibrations, such as a sudden fall on its side, the waterproof plate 18 will continue to press against the bottom wall 12 due to the liquid pressure of the liquid C. The adhesion of the water is promoted, and water leakage never occurs.

In the above embodiment, the connecting means between the main body case A and the tank B is composed of a female threaded portion and a male threaded portion, but the present invention is not limited to this, and any means that tightly connects the two may be used.

The elastic waterproof plate 18 is preferably formed of a water-repellent resin, and its small pores may be set smaller than the smallest particles produced by the surface tension of the sprayed liquid.

Furthermore, various modifications can be made to the means for fixing the waterproof plate 18 and the suction pipe 14.

As explained above, this invention is a sprayer that is separated from the main body case A and the tank B that is separably mounted below the main body case A, and the driving sources such as the motor 7 and the pump 9 are installed inside the main body case A. It is mounted in a raised state on the bottom wall 12 of the case A, and is formed on the case bottom wall 12 at a position where the main body case A and the tank B face each other, and is directed toward a space S that partially communicates with the outside. Since the opening water drain hole 25 is provided, spray liquid, water, etc. that have entered the main body case can be actively discharged to the outside through the water drain hole and the space, and the water drain hole itself can be The main body case and the outer shell of the tank can provide active protection, effectively preventing collisions with other equipment and foreign objects from entering the main body case.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a sprayer embodying this invention, and FIG. 2 is a perspective view of the appearance of an elastic waterproof plate of the same embodiment. A: Body case, B: Tank, 7
...Motor, 9...Pump, 12...
...Bottom wall, S...Space part.

Claims (1)

[Scope of utility model registration request] Tank B is installed separably below the main case A.
In this sprayer, drive sources such as a motor 7 and a pump 9 are installed inside the main case A in a raised state against the bottom wall 12 of the main case A, and the case bottom wall 1
2, the main body case A and tank B are located opposite each other,
A sprayer characterized in that a water drain hole 25 is formed, a part of which opens toward a space S that communicates with the outside.