JPH0128849Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a nozzle for an electric sprayer, and by attaching and detaching a cylindrical shower piece that has a discharge hole formed at the tip of the spray nozzle, it is possible to spray a chemical solution in a mist and shower. This allows for easy switching.

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., spray the chemical solution in the form of a mist and spray it all over the flowers and trees, or spray the soil with a nutrient solution or water. When spraying, it is preferable to spray only on the necessary areas, not as a mist.

Therefore, the present invention was devised in consideration of the above points, with the purpose of providing a nozzle for an electric sprayer that can easily switch between atomized spraying and shower-like spraying of a chemical solution, and in which a spray hole is formed. A cylindrical shower piece having a plurality of discharge holes is removably attached to the tip of the spray nozzle, and when the shower piece is attached to the nozzle, the spray A decompression chamber surrounded by the nozzle and the shower piece is secured between the hole and the discharge port, so that the shower piece can be attached and detached from the nozzle to disperse the chemical solution in a mist and shower shape. This allows for easy switching of spraying.

Embodiments of the present invention will be described below with reference to the drawings.

Figures 1 and 2 show a spray nozzle for an electric sprayer according to the present invention, and the nozzle 1 consists of a nozzle base 2 and a cap body 3 that is detachably attached to the nozzle base 2. There is. The nozzle base 2 includes a substantially disc-shaped distal enlarged portion 21, and the enlarged portion 2.
1, and a connecting part 23 connected to the rear part of the body part 22, and an enlarged part 21 in which a passageway 6 is formed in the length direction at the center thereof. Cut-out grooves 7, 7 for water flow guidance are formed in the holes. 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. Water holes 8, 8 communicating with the water passage 6 are provided in the front body portion 22a.
Two O-rings 9 are formed at the rear of the water passage holes 8, 8, and an O-ring 9 is installed as a water-stopping member. Reference numeral 10 denotes a convex portion for preventing the O-ring 9 from coming off, which is formed in a bulge on the front body portion 22a. 11 is the rear torso 22
c A threaded portion formed on the circumferential body surface, into which the cap body 3 is screwed.

The cap body 3 is a substantially cylindrical body, and has a front body portion 31.
and a rear body part 32 having a slightly larger diameter than the front body part 31. A distal end surface 311 of the front body section 31 protrudes in a conical shape, and a spray hole 12 is formed in the center thereof. The above-mentioned threaded portion 11 is provided on the inner circumferential surface of the rear body portion 32.
A threaded portion 13 is formed to be screwed into the cap body 3, and when the cap body 3 is rotated with a fingertip, the cap body 3
moves forward and backward in the length direction of the nozzle base 2 and is attached to and detached from the nozzle base 2. Reference numeral 14 denotes an anti-slip groove formed on the circumferential surface of the rear body portion 32. As shown in FIG. 2, with the cap body 3 fully screwed into the nozzle base 2, the chemical liquid sent to the water passage 6 passes through the water passage holes 8, 8 and the notched grooves 7, 7, and then passes through the spray hole. 1
A mist is ejected from 2. 15 is an outflow pipe connected to the lower part of the connecting part 23, and is connected to the water passage 6.
The inflow pipe 15 communicates with the flexible hose 1.
6 to the electric sprayer main body (described later). The inflow pipe 15 also serves as a grip, and the inflow pipe 15 is held when spraying the chemical solution.

Reference numeral 5 denotes a cylindrical shower piece that is removably attached to the tip of the cap body 3, and has a plurality of concentric discharge holes 51 formed on its front surface, and a shower piece 5 on its inner peripheral surface. A plurality of fitting protrusions 52 are provided in a protruding manner. Four grooves 312 are formed on the same surface around the front body of the cap, and by elastically fitting the protrusions 52 into the grooves 312, the shower piece 5 is covered with the cap 3. In this state, the spray hole 12 of the cap body 3 is covered by the shower piece 5 (see FIG. 3). When the shower piece 5 is attached to the cap body 3, a decompression chamber 17 surrounded by the cap body 3 and the shower piece 5 is secured between the spray hole 12 and the discharge hole 51. The volume of the shower piece 17 is adjusted by changing the depth to which the shower piece 5 is attached. That is, as shown by the solid line in FIG. 3, when the shower piece 5 is shallowly attached to the cap body 3, the volume of the decompression chamber 17 increases, the liquid pressure in the decompression chamber 17 decreases, and the chemical liquid flows out of the discharge hole 51 with no force. However, when the shower piece 5 is deeply attached to reduce the volume of the decompression chamber 17 as shown by the chain line in the same figure, the liquid pressure in the decompression chamber 17 increases and the chemical solution is vigorously discharged from the discharge hole 51. Ru.

24 is a cylindrical mounting part connected to the rear part of the connecting part 23, and a groove 241 is formed on the circumferential surface of the mounting part 24.
When the shower piece 5 is not in use, the protrusion 51 is formed in a concave groove 241.
The shower piece 5 is fitted into the mounting part 24, and the shower piece 5 is stored so as not to be lost.

Figure 4 shows an electric sprayer 3 equipped with the above nozzle 1.
0 shows a situation in which a chemical solution is being sprayed on a potted plant 20, and 31 is a main body of an electric sprayer 30;
32 is a chemical tank connected to the main body 31. The shower piece 5 is removed from the cap 3 and attached to the mounting part 24, exposing the spray hole 12 on the front surface of the cap 3. The chemical solution sent through the hose 16 is sprayed out from the spray holes 12 in the form of mist.

When spraying a chemical solution in a shower-like manner, the shower piece 5 is removed from the mounting portion 24 and attached to the tip of the cap body 3 as shown in FIG. Then, the chemical liquid ejected from the spray hole 12 temporarily accumulates in the decompression chamber 17 and is discharged from the discharge hole 51 on the front surface of the shower piece 5 in a shower shape. When it is desired to adjust the spray amount of the chemical solution, the liquid pressure in the decompression chamber 17 can be adjusted by adjusting the adhesion depth of the shower piece 5 and changing the volume of the decompression chamber 17 as described above. By attaching and detaching the shower piece 5 to the cap body 3 in this manner, it is possible to easily switch between spraying and showering of the chemical solution.

5 and 6 show another embodiment of the present invention, in which 42 is a main body 4 of an electric sprayer 40.
1 , and the connecting portion 25 at the rear of the nozzle base 2 is detachably screwed onto the tip of the connecting tube 42 . Further, the shower piece 5 is attached to the nozzle base 2 by a string-like member 43. 42 is a chemical tank. By attaching the shower piece 5 to the nozzle base 2 in this manner, loss of the shower piece 5 can be more reliably prevented. The structure of the nozzle base 2 of this embodiment other than the connecting portion 25 is the same as that of the first embodiment. Furthermore, as shown in FIG. 7, a plurality of storage bodies 42 for shower pieces 5 may be formed in the electric sprayer main body 31. In this case, a plurality of shower pieces 5 with different hole shapes are arranged in each storage part 42. It would be more convenient to store them in a storage room and select and use them as appropriate depending on the purpose of dispersion.

As explained above, in the nozzle of the electric sprayer according to the present invention, the cylindrical shower piece 5 formed with a plurality of discharge holes 51 is detachably attached to the tip of the spray nozzle 1 formed with the spray holes 12. When the shower piece 5 is attached to the nozzle 1, the spray hole 12 and the discharge port 51
In between, a decompression chamber 17 surrounded by the nozzle 1 and the shower piece 5 is secured, so by attaching and detaching the shower piece 5 to the nozzle 1,
You can easily switch between spraying and showering the chemical solution.

[Brief explanation of the drawing]

The figure shows an embodiment of the present invention.
The figure is an exploded perspective view of essential parts, Figure 2 is a sectional view, Figure 3 is a side view, Figure 4 is a side view in use, and Figures 5 and 6 are side views of other embodiments of the present invention. , FIG. 7 is a perspective view of still another embodiment of the present invention. 1...Nozzle, 5...Shower piece, 12...
... Spray hole, 17... Decompression chamber, 30, 40... Electric sprayer, 51... Discharge hole.

Claims (1)

[Scope of utility model registration request] A cylindrical shower piece 5 formed with a plurality of discharge holes 51 is removably attached to the tip of a spray nozzle 1 formed with a spray hole 12, and the shower piece 5 is attached to the tip of the spray nozzle 1 formed with a spray hole 12. 1, between the spray hole 12 and the discharge port 51,
A nozzle for an electric sprayer, which has a reduced pressure chamber 17 surrounded by the nozzle 1 and the shower piece 5.