JPH022452Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to the nozzle of an electric sprayer, and by moving the cap body attached to the tip of the nozzle base forward and backward, it is possible to easily switch between atomized spraying and shower-like spraying of chemical liquid. This is what I did.

Electric sprayers used for gardening etc. consist of a chemical tank and a main body.The chemical liquid in the chemical tank is sucked up by a pump on the main body and sent to a nozzle, from which it is sprayed onto trees, flowers, etc. It's summery. It is desirable to spray the chemical solution according to its purpose. For example, when disinfecting flowers, trees, etc., the chemical solution should be sprayed in the form of a mist and sprayed all over the flowers and trees, and the soil should be sprayed with a nutrient solution or water. When applying chemicals, it is preferable to spray only the necessary areas without spraying in the form of a mist.

Therefore, the present invention has been devised in consideration of the above points, with the purpose of providing an electric sprayer nozzle that can easily switch between atomized spraying of chemical liquid and watering. A nozzle base having a water passage hole formed therein; and a discharge hole formed at the tip of the nozzle base, and the nozzle base having a discharge hole formed therein and mounted on the tip of the nozzle base so as to be movable forward and backward in the length direction of the nozzle base, covering the water passage hole. A nozzle is constructed from the cap body, and the discharge hole 1 is formed at the tip of the nozzle substrate 2.
0 and has a spray hole 17 smaller in water flow area than the discharge hole 10. As the cap body 3 moves forward and backward, the outer wall surface 161 of the tip end of the water stop body 13 is attached. is brought into contact with and away from the inner wall surface 32 of the tip end of the cap body 3, thereby allowing the cap body to move forward and backward along the nozzle base to easily switch between atomized spraying and shower-like spraying of the chemical solution. It was designed so that Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show a spray nozzle of an electric sprayer according to the present invention, and the nozzle 1 is composed of a substantially rod-shaped nozzle base 2 and a cap body 3 attached to the nozzle 2. There is. Nozzle base 2
consists of a substantially disc-shaped tip enlarged part 21, a body part 22 connected to the rear part of the enlarged part 21, and a connecting part 23 connected to the rear part of the body part 22. A water passage 4 is formed in the length direction. Further, cutout grooves 5, 5 for guiding water flow are formed in the enlarged portion 21. The trunk portion 22 includes a front trunk portion 22a having a slightly smaller diameter than the enlarged portion 21, a middle trunk portion 22b having a slightly larger diameter than the front trunk portion 22a, and a rear trunk portion having an even larger diameter than the middle trunk portion 22b. It consists of 22c. The front body portion 22a has a water hole 6 communicating with the water passage 4,
Two O-rings 6 are formed, and an O-ring 7 as a water-stopping member is attached to the rear of the water holes 6, 6.

Reference numeral 8 denotes a locking groove formed in the shape of a key on the circumferential surface of the rear body portion 22c.
The details will be described later. 23
Reference character a denotes a concave-convex portion formed on the peripheral surface of the connecting portion 23, and the concave-convex portion 23a is inserted into the connecting tube 9 to connect the present nozzle 1 to an operating portion (described later).

The cap body 3 is a substantially cylindrical body, and its tip 31 protrudes in a conical shape, and a discharge hole 10 is formed in the center thereof. Reference numeral 11 denotes a concavo-convex portion formed on the circumferential body surface to prevent the fingertip from slipping. 12
is a projection protruding from the rear end of the inner wall surface of the cap body 3, and the cap body 3 connects the projection 12 to the rear body portion 22.
It is fitted into the locking groove 8 of c and attached to the nozzle base body 2, and in this state the water passage holes 6, 6 are completely covered by the cap body 3. The engaging groove 8 has a key shape as described above, and the protrusion 12 is inserted by operating the cap body 3.
By moving the cap body 3 along the engagement groove 8, the cap body 3 can be moved forward and backward along the length direction of the nozzle base body 2.

Reference numeral 13 is a water stop body, which includes a cylindrical part 15 in which a plurality of water passage grooves 14 are formed in the length direction of the circumferential body surface, and a bulge formed in a conical shape at the tip of the cylindrical part 15. The outer wall surface 161 of the bulging portion 16 is given the same inclination angle as the inner wall surface 32 of the distal end portion of the cap body 3 so that the outer wall surface 161 can be brought into close contact with the inner wall surface 32 of the distal end portion of the cap body 3. Further, a spray hole 17 having a smaller diameter than the discharge hole 10 of the cap body 3 is formed in the center of the bulge portion 16 . The water stopper 13 is loosely attached to the enlarged tip portion 21 of the nozzle base 1 by engaging a protrusion 131 protruding from its rear end so that it can move forward and backward slightly, and the cap body 3 is attached from above. In this state, the spray hole 17 of the water stopper 13 and the center of the discharge hole 10 of the cap body 3 are in the same straight line, and when the cap body 3 is moved forward or backward, the outer wall surface 161 of the water stopper body is aligned with the inner wall surface of the cap. 32 and separates.

Figure 2a shows the protrusion 12 after pushing in the cap body 3.
FIG. 3 shows a state in which the water stopper 13 is engaged in the vertical groove 8a, and a chemical solution is being sprayed in that state. 32, and the chemical solution sent from the electric sprayer main body 18 to the water passage 4 through the hose 19, through the water holes 6, 6, the cutout groove 5,
5 and is ejected from the spray holes 17 of the water stop body 13 in the form of mist. At this time, the discharge hole 10 of the cap body 3 coincides with the spray hole 17, and its diameter is the same as that of the spray hole 1.
Since the diameter of the cap body 3 is larger than the diameter of the cap body 7, the cap body 3 does not become an obstacle to the jetting of the chemical liquid, and the chemical liquid jetted from the spray hole 17 directly passes through the discharge hole 10 and is sprayed in a mist form. Also, the outer wall surface 161 of the water stop body 13
Since the inner wall surface 32 of the cap body 3 and the inner wall surface 32 of the cap body 3 are in close contact with each other, the chemical solution does not flow between the outer wall surface 161 and the inner wall surface 32. As is clear from the above description, this nozzle 1 brings the outer wall surface 161 and the inner wall surface 32 into close contact with each other when the cap body 3 is pushed in, increases the liquid pressure inside the nozzle 1, and vigorously sprays the spray from the spray hole 17 in the form of a mist. It sprays a chemical solution, and in order to obtain such effects, the outer wall surface 161 is connected to the inner wall surface 3.
It is important that the water stopper 13 be firmly and closely attached to the water stopper 2, and for this purpose, it is desirable that the water stopper 13 be made of a soft material that allows slight elastic deformation, such as rubber or soft synthetic resin. 30 is the above hose 19
An operating section connected to the electric sprayer main body 18 via , 31 is a grip thereof, 32 is an operating button, 33
is a potted plant that is sprayed with a chemical solution.

Fig. 2b shows a state in which the cap body 3 is pulled out along the nozzle base body 2 and the protrusion 12 is engaged in the vertical groove 8b.
61 is separated from the inner wall surface 32 of the tip end of the cap body 3, and an extra space a is created therebetween. Therefore, the chemical solution flowing out from the water passage holes 6, 6 passes through the space a where it flows easily, as shown by the dotted arrow, and is discharged from the discharge hole 10. FIG. 4 shows how the chemical liquid is sprayed in this manner. Since the space a functions as a decompression chamber, the chemical liquid can be watered appropriately without force.
As described above, the present nozzle 1 can easily switch between mist spraying and shower spraying of the chemical solution by moving the cap body 3 forward and backward.

The present invention is not limited to the above-mentioned embodiments, and the cap body may be attached to the nozzle base so as to be movable forward and backward, for example, by forming screws in the cap body and the nozzle base body and screwing them together.

As explained above, according to the present invention, by moving the cap body 3 back and forth along the nozzle base body 2, the water stop body outer wall surface 161 is brought into contact with and separated from the cap body tip inner wall surface 32, thereby spraying the chemical solution in a mist and showering. You can easily switch between different types of dispersion.

[Brief explanation of the drawing]

The figure shows an embodiment of the present invention.
The figure is an exploded perspective view of the nozzle, FIGS. 2a and 2b are sectional views, and FIGS. 3 and 4 are perspective views of the nozzle in use. DESCRIPTION OF SYMBOLS 1...Nozzle, 2...Nozzle base, 3...Cap body, 6...Water hole, 10...Discharge hole, 13...
... Water stop body, 17 ... Spray hole, 32 ... Inner wall surface of the tip of the cap body, 161 ... Water stop body outer wall surface.

Claims (1)

[Scope of utility model registration request] A nozzle base 2 having a water passage hole 6 formed at the tip.
and a cap body 3, which has a discharge hole 10 formed at its tip and is attached to the tip of the nozzle base 2 so as to cover the water passage hole 6 and move forward and backward in the length direction of the nozzle base 2. A water stopper 13 formed with a spray hole 17 that matches the discharge hole 10 and has a smaller water flow area than the discharge hole 10 is attached to the tip of the nozzle substrate 2, and the cap body 3 is moved back and forth. Accordingly, this nozzle for an electric sprayer is characterized in that the outer wall surface 161 of the distal end of the water stopper 13 is brought into contact with and separated from the inner wall surface 32 of the distal end of the cap body 3.