JPH044834Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field of the Invention) The present invention relates to a nozzle for an atomizer, and particularly relates to a nozzle structure that allows easy switching between atomized spraying, jet-like spraying, and shower-like spraying of a chemical solution. .

(Prior art) A sprayer used for gardening etc. consists 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. It's starting to spread. 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 widely over the entire plant or tree, or even to tall trees or far away. If you want to sprinkle water, spray it vigorously in the form of a jet,
Also, when watering, it is preferable to spray only the areas where it is needed.

(Problem to be solved by the invention) For this purpose, the present applicant has developed a device that allows for easy switching between atomized spraying and shower-like spraying of a chemical solution by moving the cap body attached to the nozzle base forward and backward. proposed a nozzle (Jetkō 59-
No. 23483). However, with this method, the water jetting position (water source) changes depending on the water jetting mode, so when jetting water while switching modes, it is difficult to aim at the target object.

SUMMARY OF THE INVENTION An object of the present invention is to provide a sprayer nozzle that solves the above-mentioned problems.

(Means for Solving the Problem) For this purpose, the present invention provides a main body 17 of the sprayer 17.
a nozzle base 2 that communicates with the nozzle base 2; and a cap that is attached to the nozzle base 2 so as to be freely forward and backward along its length and adjusts the gaps t1, t2, and t3 between the nozzle base 2 and the cap body 3. A water passage hole 6 is formed in the nozzle base body 2, and a water stop member 7 is attached to the rear of the water passage hole 6 so as to be slidable in the length direction of the nozzle base body 2. A spray hole 13 is formed in the front part of the cap body 3, and the water stop member 7 is formed in the body part 31 of the cap body 3 as the cap body 3 moves forward and backward.
A discharge hole 14 is formed to open and close the spray hole 1.
A cover body 4 having a water discharge hole 25 formed at a position opposite to the discharge hole 14 is provided to cover the discharge hole 14.

(Function) By configuring the nozzle 1 in this way, by moving the cap body 3 forward and backward along the nozzle base body 2, it is possible to easily switch between three water spray modes: mist spray, jet spray, and shower spray. I can do it. Further, in this case, water is ejected from the water discharge hole 25 formed at the tip of the cover body 4 in any of the water injection modes, so water can be aimed at the object to be sprayed with water.

(Embodiments) Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 and 2 show the nozzle of the sprayer according to the present invention, in which the nozzle 1 includes a nozzle base 2 and a cap body 3 attached to the nozzle base 2.
and a cover body 4 attached to the cap body 3.

The nozzle base 2 includes a substantially disk-shaped enlarged tip portion 21;
It consists of 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, and a water passage 1 is provided in the center along the length direction.
8 is formed.

Two cutout grooves 5, 5 for water passage are formed in the enlarged portion 21. The body portion 22 includes a front body portion 22a having a smaller diameter than the enlarged portion 21, and a rear body portion 22c having a slightly larger diameter than the front body portion 22a.

Two water passages 6, 6 are formed in the front body portion 22a to communicate the water passage 18 to the outside,
An O-ring 7 made of a soft material is attached to the rear of the water passages 6, 6 as an annular water-stopping member.

In FIG. 3a, 8 is a fitting groove for the O-ring 7 recessed in the middle body portion 22b. As shown in the figure, the fitting groove 8 is formed so that the O-ring 7 can slightly slide in the longitudinal direction of the nozzle base 2 within the fitting groove 8.
The groove width is made slightly larger than the diameter of the O-ring 7 to provide an extra width l.

Reference numeral 9 denotes a threaded portion formed on the circumferential surface of the rear body portion 22c, and by screwing the threaded portion 15 formed on the inner circumferential surface of the cap body 3 to the threaded portion 9, the cap body 3 is applied to the nozzle base 2.

The diameter of the connecting portion 23 is larger than that of the body portion 22, and a pipe 11 extending from the sprayer main body (described later) is connected to the rear end thereof. It communicates with the sprayer body via. Reference numeral 12 denotes a non-slip rib formed on the peripheral surface of the connecting portion 23.

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. The front surface of the front body portion 31 projects in a conical shape, and a spray hole 13 is formed in the center thereof.
Further, three rectangular discharge holes 14 are formed in the rear circumferential surface of the front body part 31 at positions facing each other along the exercise direction. Note that instead of the rectangular discharge hole 14, a circular discharge hole may be formed over the entire circumference of the circumferential body portion of the front body portion 31.

When the threaded portion 15 formed on the inner circumferential surface of the rear body portion 32 is screwed into the threaded portion 9 and the cap body 3 is rotated with a fingertip, the cap body 3 is rotated along the length direction of the nozzle base body 2. move forward and backward.

The cover body 4 has a substantially cylindrical shape and is made of elastic synthetic resin, and its tip protrudes in a conical shape, and a water discharge hole 25 is bored in the center of the cover body 4 at a position facing the spray hole 13. There is. This cover body 4
is attached to the front body part 31 of the cap body 3, and in this state, the water passage part 19 is secured between the front body part 31 and the cover body 4, and the discharge hole 14 is covered by the cover body 4. be exposed.

The spray hole 13 is formed to have a small diameter due to its function, so if it is deformed by hitting an object, etc.
Although spraying tends to be defective, by attaching the cover body 4, the spray hole 13 is guarded by the cover body 4, and such inconvenience can be eliminated.

Reference numeral 42 denotes a plurality of concentric ribs formed on the inner wall of the cover body 4;
The water passage section 19 is secured while reinforcing the water passage section 19. Reference numeral 43 denotes an annular groove, and the cover 4 is attached to the cap 3 by elastically fitting the groove 43 into an annular protrusion 3a protruding from the peripheral surface of the cap 3. 41 is a groove for preventing the fingertip from slipping.

As shown in FIG. 2a, when the cap body 3 is sufficiently screwed into the nozzle base body 2 by turning the cover body 4 attached thereto, the discharge hole 14 of the cap body 3 is inserted into the O-ring 7. Position and discharge hole 1
4 (see Figures 3 a and b), and the chemical liquid sent to the water passage 18 passes through the water holes 6, 6 and the notched grooves 5, 5, and is ejected in the form of mist from the spray hole 13 and the water discharge hole 25. do. In this way, when the cap body 3 is sufficiently screwed into the nozzle base body 2, the gap t1 between the enlarged portion 21 of the nozzle base body 2 and the cap body 3 becomes small, and the chemical liquid passes through the narrow radial notch grooves 5 while increasing the flow velocity. Then, a mist is vigorously ejected from the spray hole 13. In this case, since the discharge hole 14 is rectangular, the O-ring 7
is in tight contact with the discharge hole 14, and the discharge hole 14 is completely sealed.

Further, when the cap body 3 is rotated and moved forward until its discharge hole 14 is located in front of the O-ring 7 (see Fig. 2c), the chemical liquid sent to the water passage 18 is transferred to each discharge hole. 14 to water passage part 19
The water flows out through the water passage 19, loses its force from the water discharge hole 25, and is discharged in a shower shape in a state suitable for so-called watering. That is, in this case, the enlarged portion 21 at the tip of the nozzle base 2 and the cap body 3
During this period, a large gap t3 occurs, and the chemical liquid flows from the water passage portion 19 to the water discharge hole 25, so that the internal water pressure is greatly reduced, the chemical liquid loses its momentum, and is discharged in a shower shape.

Furthermore, as shown in FIG. 2b, even when the cap body 3 is rotated, the O-ring 7 does not move by the above-mentioned margin 1, and in this state, the chemical solution is vigorously jetted from the water discharge hole 25 in the form of a jet. It will be done.
That is, in this case, the gap t2 is slightly larger than in the case of FIG. 2a, and the chemical liquid is ejected from the ejection hole 25 in the form of a jet simply by water pressure without being affected by the shape of the notched groove 5. Also, mist spraying,
In any of the water injection modes, jet-like injection and shower-like dispersion, water is ejected from the same water discharge hole 25, so there is an advantage that it is easy to aim the water at the object to be sprayed.

In this manner, the present means moves the cap body 3 forward and backward to connect the nozzle base body 2 and the gaps t1, t2, t3.
By adjusting the water injection mode, you can easily change the water injection mode.

In the above-mentioned sliding operation of the cap body 3, the retraction limit position of the cap body 3 is when the rear end surface comes into contact with the front end surface of the connecting portion 23, as shown in FIG. 2a. The discharge hole 14 is located on the O-ring 7, and the discharge hole 14 is completely blocked by the O-ring 7. If the position where the discharge hole 14 has retreated above the O-ring 7 is the retreat limit position of the cap body 3, as shown in FIGS. 3a and 3b,
The O-ring 7 made of a soft material elastically and firmly adheres to the discharge hole 14, ensuring a high sealing effect, and making the forward and backward stroke of the cap body 3 relatively short, making it easy to form a mist. You can switch between spraying and shower-like spraying.

Further, since the discharge hole 14 does not slide over the O-ring 7, it has the advantage that the O-ring is less likely to be damaged by the edge of the discharge hole 14 during the above operation. Moreover, if the fitting groove 8 of the O-ring 7 is formed slightly larger to provide an extra width l as described above,
During the above operation, the O-ring 7 can be prevented from suddenly hitting the edge of the discharge hole 14 (see the chain line a in FIG. 3),
Therefore, it is possible to prevent the O-ring 7 from being damaged by excessive stress during the above operation. In addition, this extra width l becomes the play area when switching between mist spraying and watering, and as shown in Figure 2b,
While the discharge hole 14 is closed by the ring 7, it is possible to switch between spraying and injection.

FIG. 4 shows how the sprayer 17 equipped with the nozzle 1 is spraying a disinfectant spray onto the potted plant 20 with a chemical solution in the form of a mist. 171 is the main body of the sprayer 17, and 172 is the main body 17. A chemical tank connected to the cap body 3 as shown in FIG. 2a.
When the switch is fully screwed into the nozzle base 2 and the switch button 173 is operated, the chemical liquid flows from the water passage part 18 through the water passage holes 6, 6 to the spray hole 13 and the water discharge hole 25.
Spouts out in a mist form.

FIG. 5 shows how the potted plant 20 is being watered. When the cap body 3 is moved forward as shown in FIG.
The chemical liquid that has flowed out through the discharge hole 14 and the water passage portion 19 is discharged from the water discharge hole 25 in a shower shape.

Further, in the state shown in FIG. 2b, water can be sprayed long distances from the water discharge hole 25 in the form of a jet to water tall trees and the like. As described above, according to the present nozzle 1, the chemical solution can be sprayed in a mist, shower, etc.
You can easily switch between three jet water injection modes.

(Effects of the invention) As explained above, according to the invention, by rotating the cap body 3 and moving it forward and backward along the nozzle base 2, the chemical solution can be sprayed in the form of mist, shower, or jet. You can easily switch between three water spray modes. Furthermore, since mist spraying, jet spraying, and shower spraying are all ejected from the same water discharge hole 25, water can be sprayed with correct aim at the object to be sprayed. Furthermore, by guarding the spray hole 13 with the cover body 4, it is possible to prevent the spray hole 13 formed to have a small diameter from being deformed due to an object hitting the spray hole 13, resulting in poor spraying.

[Brief explanation of drawings]

The figure shows an embodiment of the present invention.
The figure is an exploded perspective view of the nozzle base, Figure 2 a, b, c
3 is a sectional view, FIGS. 3a and 3b are partial sectional views, and FIGS. 4 and 5 are side views during use. 1...Nozzle, 2...Nozzle base, 3...Cap body, 4...Cover body, 6...Water hole, 7...
Annular water stop member, 13... spray hole, 14... discharge hole, 17... sprayer, 18... water passage, 31...
The trunk of the cap body, 171...the main body.

Claims (1)

[Scope of utility model registration request] A nozzle base 2 that communicates with the main body 171 of the sprayer 17, and gaps t1, t2, t2, which are attached to the nozzle base 2 so as to be able to move forward and backward along the length thereof, and between the nozzle base 2 and the cap body 3. and a cap body 3 for adjusting t3, and the nozzle base 2
A water passage hole 6 is formed in the nozzle body 2, and a water stop member 7 is attached to the rear of the water passage hole 6 so as to be slidable in the longitudinal direction of the nozzle base 2, and a spray hole is formed in the front part of the cap body 3. A discharge hole 14 is formed in the body 31 of the cap body 3 and is opened and closed by the water stop member 7 as the cap body 3 moves forward and backward.
A nozzle for a sprayer, characterized in that a cover body 4 is provided to cover the discharge hole 14 and has a water discharge hole 25 formed at a position facing the spray hole 13.