JP3313379B2 - Foaming nozzle for sprayer installation - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foaming nozzle mounted on a sprayer nozzle.

[0002]

2. Description of the Related Art For example, as shown in Japanese Utility Model Publication No. 63-69579,
When the foaming nozzle is attached to the nozzle of the trigger type sprayer, and the trigger of the sprayer is pulled, the mist spraying from the center of the front end face of the spinning spray nozzle hits the inner wall surface of the mouth of the foaming nozzle and passes through the front end side of the spray nozzle. There is also known a nozzle provided so as to foam by mixing with outside air introduced into the opening of a foaming nozzle and to blow out from the front end of the mouth.

[0003]

The above-mentioned conventional foaming nozzle is formed in a cylindrical shape. When a trigger of a trigger type sprayer equipped with the nozzle is operated, the nozzle passes through a spin passage of the nozzle of the sprayer. The outer surface of the group of fog spouted into the shape of a hollow cone by spinning from the spray hole hits the inner surface of the mouth of the foaming nozzle, foams, and spouts out as a group of bubbles having a circular cross section. Therefore, in the case of a trigger type sprayer with a foaming nozzle, for example, when a detergent is sprayed on a window glass, the bubbles are adhered in a circular shape. There was a drawback that it protruded and adhered to window frames and the like.

According to the present invention, such a disadvantage is eliminated so that the jetted bubbles adhere to a surface to be sprayed, such as a window glass, in a square shape, and the corners are formed at the corners of the window glass. By spraying on the corners and the like, it is possible to eliminate the adhesion of bubbles to the window frame and the like as described above.

[0005]

In a foaming nozzle mounted on the front end of a spin type spray nozzle of a sprayer, the nozzle is formed as a substantially square tube when viewed from the front, and is formed through a spray hole 3 of the spray nozzle 2. The outer surface portion of the mist group 9 ejected in a hollow cone shape at a constant spray angle through the inside of the foaming nozzle 7 is directed to the inner surface of the middle portion of each side of the square formed by the mouth portion of the foaming nozzle front end mouth portion. The front end of each of the four corners including both ends and both ends of the side was formed so as to allow passage.

[0006] In a foaming nozzle mounted on the front end of a spin type spray nozzle of a sprayer, the nozzle is formed as a substantially square tube when viewed from the front, and between both ends of the front surface of each side of a square formed by the mouth of the nozzle front end. Is formed into an arc-shaped concave portion 16, and the mist group 9 ejected from the spray hole 3 of the spray nozzle 2 into the hollow cone at a constant spray angle through the foaming nozzle 7.
Of the front end opening of the foaming nozzle correspond to the inner wall surface of the opening in each arc-shaped concave portion 16 and can pass through the front end of each of the four corners.

[0007] In a foaming nozzle mounted on the front end of a spin type spray nozzle of a sprayer, the nozzle has a rectangular cylinder from the front and an arc-shaped recess 16 between both ends of a long side front surface of the rectangular front end face of the nozzle. None, the outer surface portion of the fog group 9 which is ejected from the spray hole 3 of the spray nozzle 2 into the hollow cone at a constant spray angle through the inside of the foaming nozzle 7 is formed into an arcuate concave portion 16 of the front end of the foaming nozzle. Deep inside the
The inner surface of the short side is formed so as to be shallow, and the front ends of the four corners are allowed to pass in a close state.

[0008]

When the spraying operation is performed with the spray nozzle 2 directed forward, the liquid spouts forward while rotating at a high speed through a known spin passage 4 provided on the inner surface of the spray hole 3. Due to the high speed rotation, the liquid is atomized immediately, and many of the particles of each mist draw a spiral trajectory whose diameter increases as the distance from the spray hole increases. In the form of a ring having a substantially hollow conical shape at an angle, that is, a ring shape having a wide cross-section, the concentration of the outer peripheral portion is high, and the central portion excluding the high-concentration ring-shaped portion is diluted and foamed attached to the spray nozzle 2 It gushes through the nozzle 7. In the portion where the fog group hits the inner wall surface of the mouth, the mist particles that collide with the inner wall surface of the mouth are foamed by mixing with the outside air flowing into the foaming nozzle through the space between the front end face of the spray nozzle and the rear end face of the foaming nozzle. The bubbles are mixed with the non-foaming fog, and are ejected from the mouth of the foaming nozzle into a truncated quadrangular pyramid with a substantially square cross section.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a first embodiment shown in FIGS. 1 to 3 will be described.
Is a spin type spray nozzle fitted to the front of the liquid jet tube, which has a spray hole 3 at the center of the front wall thereof, and the liquid which has passed through the well-known spin passage 4 under high pressure while rotating at high speed. It is provided so that it may be sprayed out of the spray hole 3 as a mist group. A cylindrical portion 5 protrudes forward from the outer periphery of the front end surface of the spray nozzle 2, and a cylindrical body 6 with a foaming nozzle is fitted in the cylindrical portion. The tubular body forms a cylinder with open front and rear end faces, and the foaming nozzle 7 is coaxially connected to the tubular body by four support pieces 6a projecting at equal intervals from the rear inner surface.

[0010] foam nozzle 7 is located as Ho Isuzu square tube has viewed forward, the central axis of the foam nozzles are is positioned on the extension of the spray hole central axis. As shown in the figure, a fog guide piece 8 may be provided on the inner surface of the cylindrical wall portion forming the foaming nozzle. As shown in FIG. 3, the position of the foaming nozzle 7 is such that the outer surface portion 9a of the mist group 9 which is ejected in a hollow cone shape from the spray hole 3 through the foaming nozzle at a constant spray angle has a foaming nozzle opening as shown in FIG. The square is formed so as to hit the inner surface of the middle part of each side and to be able to pass through the front ends of the four corners including both ends of each side. The fog group that hits the middle part of each side foams, and the bubbles generated in this way become a group of bubbles by mixing with the fog ejected without hitting the inner surface of the mouth of the foaming nozzle, and the four corners front end part Are scattered in the direction of arrow A extending the outer surface portion 9a. Further, the foam generated in the middle portion of each piece tends to squirt in the direction of arrow B extending forward along the inner wall surface of the foaming nozzle, but tends to scatter in the direction of arrow C in the vicinity of the middle portion of the edge. By mixing with the mist, the mist is ejected in the direction of arrow D between the arrows B and C. The foam group 10 sprayed on the wall surface to be sprayed in this way forms a square having a circumscribed circle as a perfect circle 11 as an extended partial cross section of the conical fog group 9 described above. Numeral 12 indicates the range of collision of the outer portion of the fog group with the inner wall portion of the foam nozzle opening.

When the collision area 12 on the outer surface of the fog group increases as shown in FIG. 11, the shape of the group of bubbles sprayed on the surface to be sprayed becomes a cross-shaped star shape 13 and the mixing of the fog and the bubbles is improper. When completed, fog is distributed to the portion of the arm 14 protruding outward, and bubbles are unevenly distributed to the central portion 15 excluding the arms. The reason is that almost all of the high-concentration parts on the outer periphery of the fog group hit the collision area 12 and the amount of foaming became too large,
As a result, the amount of mist scattered in the direction of arrow C is reduced, and bubbles are squirted in the direction of arrow B at the middle of each side, while high-density mist is scattered in the direction of arrow A without foaming at the four corners of the mouth. It is thought that it is due to doing.

In the case where the foaming nozzle 7 is a substantially square tube , as in the second embodiment shown in FIGS. 4 to 7, an arc-shaped tube is formed between both ends of the front surface of each side of the square tube formed by the foam nozzle opening. It is desirable to form the recess 16. By forming the collision range 12 along the rear of the arcuate concave portion, the collision range can be widened over the entire inner surface of the mouth without being partially biased. The example provided a spray of foam with a substantially uniform concentration.

FIGS. 8 to 10 show a third embodiment. This embodiment shows a case where the foaming nozzle is a rectangular cylinder when viewed from the front. In the case of a rectangular tube as described above, an arc-shaped concave portion 16 is provided on the front surface of the long side 7a of the mouth portion, and the outer surface portion of the mist group 9 ejected through the bubbling nozzle is formed by the arc-shaped concave portion 16.
It is provided so that it is relatively deep on the inner surface side, relatively shallow on the inner surface side of the short side 7b, and passes near the four corner front ends. For foaming nozzle of the rectangular tube, FIG. 1
The fog group collision area 12 on the long side 7a side indicated by 0 is the short side shown in FIG.
It is significantly larger than the fog group collision area 12 on the 7b side, but this is at a different distance from the spray hole 3, so that the outer surface of the fog group 9 ejecting in a hollow cone shape is faster on the long side, and therefore This is due to the contact in the small cross section state and the slowness on the short side, and therefore the collision in the large cross section state.

The spray angle of the mist of the mist group 9 is determined by the number of rotations of the spray pressure spin, the length and the diameter of the spray hole, and many other conditions. Therefore, the trigger type sprayer for mounting the foaming nozzle is the same. It must be manufactured in dimensions.
For fine adjustment of the spray angle, the spray nozzle 2 is connected to the injection pipe 1 or the cylinder 6 with the foaming nozzle is connected to the spray nozzle 2.
May be screwed together, and the spray nozzle may be screwed with respect to the injection pipe, or the cylinder may be screwed with respect to the spray nozzle.

[0015]

The present invention has the above-mentioned structure, and the foam generated by colliding with the inner surface of the mouth is not affected by the outer portion of the mouth, and the corner is formed without colliding with the mouth despite almost losing the ejection power to the outside. Since the passing mist jumps out of the mouth without losing the jetting power, the mist attracts the bubbles and jets out as a group of mist bubbles having a square cross section. Therefore, a square or short foam group can be sprayed by spraying on a glass window or the like, so that the detergent foam is sprayed so that the corners of the spray group correspond to, for example, the corners of a glass window or the like. Thus, the glass window can be easily and quickly cleaned.

[Brief description of the drawings]

FIG. 1 is a sectional view of a mouth of a trigger type sprayer equipped with a foaming nozzle according to a first embodiment of the present invention.

FIG. 2 is a front view of the mouth part of FIG. 1;

FIG. 3 is an operation explanatory view of the foaming nozzle.

FIG. 4 is a sectional view of a mouth of a trigger type sprayer equipped with a second embodiment foaming nozzle.

FIG. 5 is a front view of the mouth part of FIG. 4;

FIG. 6 is a diagram illustrating the operation of the foaming nozzle.

FIG. 7 is an explanatory diagram of a bubble group ejected from the foaming nozzle.

FIG. 8 is a perspective view of a foaming nozzle according to a third embodiment.

FIG. 9 is a diagram illustrating the operation of the foaming nozzle.

FIG. 10 is a diagram illustrating the operation of the foaming nozzle.

FIG. 11 is a diagram illustrating the operation of a foaming nozzle according to a reference example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Liquid ejection pipe of trigger type sprayer 2 Spray nozzle 6 Cylindrical body with foaming nozzle 7 Foaming nozzle 9 Mist group

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B05B 1/02 101 B05B 11/00 102 B65D 47/34

Claims (3)

(57) [Claims] 1. A foaming nozzle is mounted on the front end of the spin spray nozzle of the sprayer, the nozzle, Ho have seen from the front Isuzu square tube ungated, foaming nozzle 7 from the spray hole 3 of the spray nozzle 2 The outer surface portion of the mist group 9 which is ejected in a hollow cone shape at a constant spray angle through the front end of the foaming nozzle hits the inner surface of the middle part of each side of the square formed by the mouth, and the A foaming nozzle for mounting a sprayer, wherein the foaming nozzle is formed so as to be able to pass at the front end of each of the four corners including both ends of the side. 2. A foaming nozzle mounted on the front end of a spin-type spray nozzle of a sprayer, wherein the nozzle is a substantially square tube when viewed from the front, and the front of each side of a square formed by a mouth of the front end of the nozzle. The mist group 9 is formed into a hollow conical shape at a constant spray angle from the spray hole 3 of the spray nozzle 2 through the inside of the foaming nozzle 7 by forming an arc-shaped concave portion 16 between both ends.
A foaming nozzle for mounting on a sprayer, wherein an outer surface portion of the foaming nozzle is formed so as to correspond to an inner wall surface portion of each of the arcuate concave portions 16 of the foaming nozzle front end mouth portion and to be able to pass through each of the four corner front end portions. 3. A foaming nozzle mounted on a front end of a spin-type spray nozzle of a sprayer, wherein the nozzle is a rectangular cylinder from the front and an arc-shaped recess 16 between both ends of a long side front surface of the rectangular front end face of the nozzle. The outer surface portion of the mist group 9 ejected from the spray hole 3 of the spray nozzle 2 through the inside of the foaming nozzle 7 into a hollow conical shape at a constant spray angle from the spray hole 3 of the foaming nozzle 2 A foaming nozzle for mounting a sprayer, characterized in that the arc-shaped concave portion 16 is formed to be deep on the inner surface side and shallow on the short side inner surface side, and to be able to pass in a close state at the front ends of the four corners.