JPS60132Y2 - electric sprayer - Google Patents

Description

[Detailed description of the invention] The present invention relates to an electric sprayer for gardening, and its configuration is such that water or a chemical solution is stored in a portable tank, and a pump installed in the tank is operated to spray the liquid. The pump is sucked up and sprayed onto plants through a nozzle pipe attached to the end of a hose extending from the tank.In particular, when using this device for the first time, the air inside the pump must be evacuated for smooth operation. In addition to making it possible to bleed air in conjunction with the operation of the pump's operation switch, the waterways that normally connect the pumps are connected to enable jetting, and measures are taken to prevent residual liquid from dripping from the tip of the nozzle when the operation is stopped. It is also designed to have a preventive effect.

Hereinafter, one embodiment of the present invention will be described based on the drawings.
The soil is the main body of the electric sprayer, which consists of a liquid tank 2 and a drive case 3 that is installed and fixed on top of the liquid tank 2.
A drive battery 4, a small gear pump 5, and a motor 6 for driving the pump 5 are built inside, and a pipe line runs through the handle 7 of the drive unit case 3.

1, the collar portion 9 is fitted into the fitting recess 10, and the handle portion 7
It is a fixed tube that is fixed inside, and its tip end is a closed surface 11, and its rear end opening is connected to the discharge port 5' of the gear pump 5 by a tube 12.

A small hole 13 is bored in this closed surface 11 at a position eccentric from the center of the tube.

The tonosho is a rotating tube that is fitted onto the outer periphery of the tip of the fixed tube 8 and is rotatably connected. Surface 17
In this case as well, a small hole 18 is bored at a position eccentric from the center of the tube 14.

Further, a recess 19 is formed in the circumferential surface of the large diameter portion 15, and a rotational heir 20 is fitted and fixed in this recess 19.

A resilient piece 21 is integrally provided on the legitimate child 20, and the legitimate child 20 faces a window 22 that is partially opened on the surface of the handle portion 7. It is configured so as to touch the edge 23 of the window 22.

Further, in the large diameter portion 15 of the rotating tube 14, the legitimate child 2
An operating switch 24 for the pump operation switch is provided in a portion located on the opposite side of S from 0, and an operation switch 25 for the pump 5 that is operated by this operation switch is provided in the handle portion 7. ing.

A nozzle tube 26 is connected to the tip of the small diameter portion 16 of the rotating tube 14, and has a nozzle 27 at the tip.

In the above configuration, the operation will be explained as follows.
When not in use, as shown in FIG. 4, the small hole 18 of the rotary tube 14 and the small hole 13 of the fixed tube 8 are out of alignment and do not communicate with each other.

Furthermore, the operating piece 24 of the rotary tube 14 does not touch the switch 25, and the pump 5 is stopped.

In order to start the pump 5, when the user puts his finger on the operating knob 20 and rotates it clockwise as shown in FIG. 5, the small diameters 13 and 18 align and the holes communicate with each other.

Then, the air in the water channel escapes from the nozzle pipe 26 through communication between the small holes 13 and 18, allowing the pump 5 to suck up the liquid.

When the rotary tube 14 is rotated, the operating piece 24 pushes the actuator 25 and turns on the operation switch 25, so that the motor 6 is activated and the pump 5 is driven.

The liquid in the tank 2 sucked up by the pump 5 is transferred to a fixed pipe 8,
It passes through the rotation tube 14 and is ejected from the nozzle 27 of the spool tube 26 in the form of a spray or jet, and is sprinkled on plants.

When the heir 20 is pressed and rotated, the elastic piece 21 is pressed as shown in the figure.
comes into contact with the window edge 23 of the handle portion 7, and a restoring rotational force for the tube 14 is stored.

The ON state of the operation switch 25 continues as long as the eldest child 20 is pressed with a finger, and when the finger is released, the spring force of the elastic piece 21 automatically rotates the operation switch 25 to return to the state shown in FIG. 4.

Therefore, when the operation switch 25 is turned off, the small hole 18 of the rotary tube 14 and the small hole 13 of the fixed tube 8 become mismatched again, and the hole is closed.

Therefore, the remaining liquid from the rotating tube 14 to the nozzle 27 is removed from the small hole 1.
3 and 18 are closed, so that it does not drip from the tip of the nozzle 27.

That is, at the end of spraying, dripping from the nozzle tip is immediately prevented.

As described above, in the electric sprayer of the present invention, the rotary tube is rotatably connected from the outside to the fixed tube connected to the discharge port side of the pump, and both tubes are connected to each other in contact with each other. The partial side is a closed surface, and a small hole is formed in each closed surface, and the small holes usually do not coincide with each other, and when the rotating tube is operated, they communicate to open the water channel, and the rotating tube is used to open the water channel. Since the pump operation switch is configured to be activated, when the pump is started, the air in the pipes can escape from the nozzle pipe at the tip of the rotating pipe through the small holes that communicate with each other, and can be vented, making it easier to start the pump. Since the operation of the switch and the opening and closing of the waterway are linked, it is easy to operate and can be operated all at once.

Furthermore, since the water channel closes at the same time as spraying ends, it is possible to provide an electric sprayer that has various practical effects, such as preventing water from dripping from the nozzle tip.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a perspective view of the overall appearance of an electric sprayer, Fig. 2 is a sectional view of the main part, Fig. 3 is an exploded perspective view of the main parts of the invention, and Fig. 4 is a perspective view of the main part of the invention. 5 is an action diagram and its circuit diagram when the pump is not in operation, and FIG. 5 is an action diagram and its circuit diagram when the pump is in operation. 5...Pump, 11...Occluded surface, Roasting
...Fixed tube, 17...Closed surface, 14...
... Rotating tube, 13, 18 ... Small hole, 25.
...operation switch.

Claims (1)

[Scope of utility model registration request] a pump, a fixed tube connected to a discharge port of the pump and having a closing surface at its tip; a rotating tube rotatably connected to the fixed tube and having a closing surface at its rear that comes into contact with the closing surface; A small hole is formed in each of the closed surfaces of the fixed tube and the rotating tube to communicate with each other when the rotating tube is rotated by a predetermined angle. , an electric sprayer comprising an operation switch for the pump that is activated by operating the rotary tube.