JPH079452U - Atomizer - Google Patents

Abstract

(57) [Summary] [Purpose] A sprayer capable of discharging bubbles can discharge liquid in a small area. In a sprayer provided with a trigger type pump mechanism, a tubular body 35 surrounding the front of the liquid ejection nozzle 26 is provided,
A plurality of rod-shaped impingement walls 40 protruding toward the center of the tubular member are provided on the inner surface of the tubular member 35. The rod-shaped impingement wall 40 has a wide end with a wider width than the base of the rod-shaped impingement wall 40. Part 41
And the through hole 42 is formed between the tip ends of the rod-shaped impingement walls 40 by forming the cylindrical body 35 to a length that does not reach the center.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sprayer capable of foaming and discharging a liquid.

[0002]

[Prior art]

 Conventionally, there are many foam sprayers, and as an example, there is the foam sprayer described in Japanese Patent Publication No. 62-59635. As shown in FIGS. 6 and 7, the foaming sprayer is a trigger sprayer in which a nozzle 26 is provided in the front part of the sprayer main body 1, and a tubular shape surrounding the front of the nozzle 26 in front of the nozzle 26. A body 35 is provided, a plurality of rod-shaped impact walls 40 are projected from the inner surface of the tubular body 35, and the rod-shaped impact walls 40 are integrally connected at the center of the tubular body.

Then, in the foaming sprayer, when a trigger (not shown) is operated to cause the liquid to be superfluid from the nozzle 26 and jetted, the central part of the spray flow is the connecting part at the center of the rod-shaped impingement wall 40. Further, a part of the circumferential portion of the spray flow collides with the rod-shaped collision wall 40 and scatters. The liquid that has collided and scattered is mixed with the spray flow that does not collide with the rod-shaped collision wall 40, and also mixed with the air sucked from the air inflow passage 36 to be discharged as bubbles from the void 43.

[0004]

[Problems to be solved by the device]

 The conventional foaming sprayer is an excellent foaming sprayer capable of sufficiently foaming the jetted liquid and discharging it. However, since the foam sprayer diffuses the liquid and discharges it as bubbles, it is almost impossible to discharge the liquid into a small range.

The present invention has been made in view of the above matters, and an technical object thereof is to make it possible for a sprayer capable of discharging bubbles to also discharge liquid in a small range.

[0006]

[Means for Solving the Problems]

 The present invention relates to a sprayer equipped with a trigger type pump mechanism, which is provided with a swirl flow discharge passage 28 extending in the circumferential direction facing the nozzle 26, and a cylinder surrounding the front of the nozzle 26 at the front portion of the nozzle 26. A tubular body 35 is provided, and the tubular body 35 is provided such that the center of the tubular body 35 coincides with the center of the nozzle 26, and an air inflow path 36 is provided, and the inner surface of the tubular body 35 faces the centerline of the tubular body 35. A plurality of projecting rod-shaped impingement walls 40 are provided. The rod-shaped impingement wall 40 has a wide portion 41 wider than the base of the rod-shaped impingement wall 40 at the tip end thereof, and does not reach the center of the tubular body 35. The atomizer was formed to have a length, and through-hole portions 42 were formed between the tip portions of the plurality of rod-shaped impingement walls 40.

[0007]

[Action]

 According to the present invention, when the trigger 2 is pulled weakly, the liquid ejected from the nozzle 26 is spun at a low speed and is ejected in a straight line without being scattered to the surroundings. Then, the liquid which has been linearly ejected from the nozzle 26 passes through the through-hole portion 42 and is ejected in a linear shape in a small range.

When the trigger 2 is pulled with normal strength, most of the spray particles ejected from the nozzle 26 are diffused. Then, a large amount of the diffused spray particles collide with the wide portion 41 of the rod-shaped collision wall 40, and a large amount of the spray particles scatter. Then, the spray particles that collide and scatter are mixed with the spray particles that do not collide with the rod-shaped collision wall 40, and also mix with the air sucked from the air inflow passage 36 to form bubbles, which form the voids 43 and the through holes. It is discharged from the portion 42.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 to 5 are views for explaining an embodiment of the present invention. The sprayer of this embodiment is a sprayer that includes a sprayer main body 1 that can be attached to a container, has a head 16 provided with a nozzle 26 at the front, and pulls a trigger 2 to pressurize the liquid. Since the liquid pressurizing mechanism of the sprayer main body 1 of this embodiment is conventionally known, the description of its concrete structure is omitted.

As shown in FIG. 1, in the sprayer of this embodiment, a plate-like body 3 made of synthetic resin is attached to the front part of the sprayer body 1, and the plate-like body 3 has a cylindrical protruding portion. 4 is provided, and an annular convex portion for fitting is provided on the outer peripheral surface of the cylindrical protruding portion 4. On the plate-like body 3, a cylindrical portion 8 slightly shorter than the cylindrical protruding portion 4 is provided at a central position of the cylindrical protruding portion 4. Further, the plate-shaped body 3 inside the cylindrical protruding portion 4 is provided with a liquid pouring path 5 which communicates with a pouring port of a pump mechanism (not shown).

As shown in FIGS. 1 and 2, a vertical groove-shaped swirling flow passage 9 is provided on the outer peripheral portion of the tip end of the cylindrical portion 8. Further, on the outer peripheral portion of the tip end portion of the cylindrical body 8, a vertical groove-shaped straight flow passage 10 is provided by shifting the position by 60 degrees in the circumferential direction from the portion where the swirl flow passage 9 is provided. The swirl flow passage 9 is also provided outside the straight flow passage 10.

The head 16 rotatably fitted to the cylindrical portion 8 is made of a synthetic resin, and a top plate 17 is provided at a position slightly closer to the front part than the center part. A tubular portion 19 is provided facing the inner surface of the tubular portion 19, and an annular recess is provided on the inner surface of the tubular portion 19 to which an annular projection provided on the outer peripheral surface of the tubular protruding portion 4 is engaged. An annular groove 20 is provided inside the base of the tubular portion 19.

A cylindrical portion 24 is provided rearward on the top plate 17 inside the cylindrical portion 19, and the cylindrical portion 24 is tightly fitted into the cylindrical portion 8 so as to be rotatable. Inside the cylindrical portion 24, as shown in FIGS. 1 and 2, a liquid passage 27 communicating with the liquid discharge passage 5 of the plate body 3 is provided. A nozzle 26 is provided in the central portion of the top plate 17 inside the cylindrical portion 24. Further, as shown in FIGS. 1 and 2, the top plate 17 has a swirling flow outlet 28 and a straight line. The flow ejection paths 29 are provided so as to face each other.

At the positions shown in FIGS. 1 and 2, the swirl flow passage 28 provided on the rear surface of the top plate 17 communicates with the swirl flow passage 9 of the cylindrical portion 8 so that the straight flow of the cylindrical portion 8 can be achieved. The linear flow ejection passage 29 of the top plate 17 is formed so as not to communicate with the flow passage 10. The swirl flow passage 9, the swirl flow jet passage 28 communicating with the swirl flow passage 9, the straight flow passage 10, the straight jet passage 29 communicating with the straight flow passage 10, and the nozzle The liquid ejection port portion 25 is formed by 26.

Further, when the columnar portion 8 and the head portion 16 are relatively rotated by 60 degrees from the positions shown in FIGS. 1 and 2, the swirling flow passage 9 and the straight flow portion of the columnar portion 8 are used. A swirl flow jet passage 28 and a straight flow jet passage 29 provided on the rear surface of the top plate 17 are formed in the flow passage 10 so as to communicate with each other. A circular recess 18 whose center coincides with the center of the nozzle 26 is provided in the front portion of the top plate 17 of the head 16, and an annular recess is provided on the inner surface of the peripheral wall of the circular recess 18.

A cylindrical body 35 made of synthetic resin is fitted into the circular recess 18, and an annular projection formed on the outer peripheral surface of the cylindrical body 35 engages with the annular recess of the circular recess 18. Then, the tubular body 35 is fitted into the circular recess 18, and the tubular body 35 surrounds the front of the nozzle 26. As shown in FIG. 3 and FIG. 4, the tubular body 35 is provided with an air inflow passage 36 provided in the outer peripheral portion in the longitudinal direction, and the inner surface of the end portion of the tubular body 35 has a tubular shape. Five rod-shaped impingement walls 40 projecting toward the center of the body 35 are provided, and the tip end portion of each of the rod-shaped impingement walls 40 is formed as a circular wide portion 41 wider than the base portion.

The rod-shaped impingement wall 40 is formed to have a length that does not reach the center of the tubular body 35, and the tubular body 35 is provided between the tips of the five rod-shaped impingement walls 40. A through-hole portion 42 is formed at the center position of. In the sprayer of the above-mentioned embodiment, the swirling flow passage 9 of the cylindrical portion 8 at the positions shown in FIGS. The position is such that it communicates with the ejection passage 28. Alternatively, the swirl flow passage 9 of the cylindrical portion 8 communicates with the swirl flow ejection passage 28 of the head 16, and the straight flow passage 10 of the cylindrical portion 8 communicates with the straight flow ejection passage 29 of the head 16. Set to the position.

Then, when the trigger 2 is pulled weakly, the liquid ejected from the nozzle 26 is spun at a low speed, and is ejected in a straight line without being scattered to the surroundings. Then, the liquid which is ejected from the nozzle 26 in the linear shape passes through the through-hole portion 42 and is discharged in a small area in the linear shape. In addition, when the trigger 2 is pulled with normal strength, there is no problem when the swirl flow jet passage 28 is used alone or when both the swirl flow jet passage 28 and the straight flow jet passage 29 are used. Although there is a difference, the liquid ejected from the nozzle 26 diffuses.

Then, a large amount of liquid collides with the wide portion 41 of the rod-shaped collision wall 40, and is scattered. Then, the scattered liquid is mixed with the spray flow that does not collide with the rod-shaped impingement wall 40, and is mixed with the air sucked from the air inflow passage 36 to form bubbles to form the void 43 and the through hole portion 42. Is discharged from. Further, the spray particles ejected from the nozzle 26 and passing through the central portion of the tubular body 35 pass through the through hole-shaped portion 42 without being obstructed by the rod-shaped impact wall 40, and the void 43 and the through-hole-shaped portion. By contacting the foam advancing through 42, the foam advancing speed is accelerated to expel the foam vigorously.

[0020]

[Effect of device]

 According to the present invention, a wide portion 41 wider than the base of the rod-shaped impingement wall 40 is provided at the tip end of the plurality of rod-shaped impingement walls 40 provided in the tubular body 35, and the rod-shaped impingement wall 40 is formed into the cylindrical body. 35, a length not reaching the center of 35 is formed, and a through-hole portion 42 is formed between the tip end portions of the rod-shaped collision wall 40.

Therefore, when the trigger 2 is pulled weakly, the liquid ejected from the nozzle 26 is swirled at a low speed, and is ejected in a straight line without being scattered to the surroundings. Then, the liquid which is ejected from the nozzle 26 in the above-described linear shape is discharged in a linear shape in a small area, and the liquid can be applied in a small area. In order to allow the liquid to pass through the through hole 42 without colliding with the rod-shaped impingement wall 40 as described above, the through hole 42 must be formed large. When the through-hole portion 42 is formed to be large, when the spray particles collide with the rod-shaped impingement wall 40 to foam, the number of colliding spray particles is reduced. A wide portion 41 wider than the base portion of the rod-shaped collision wall 40 is provided in the portion.

Therefore, even if the through-hole portion 42 is formed large, when foaming the spray particles, a large amount of the spray particles can collide with the wide portion 41 and generate a large amount of bubbles.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a main part of an embodiment of the present invention, showing a head part and a cylindrical part at a position where a swirling flow can be ejected.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a front view of a cylindrical body according to an embodiment of the present invention.

FIG. 4 is a half cutaway view of a tubular body according to an embodiment of the present invention.

FIG. 5 is a side view of an embodiment of the present invention.

FIG. 6 is a sectional view of a main part of a conventional example.

FIG. 7 is a front view of a main part of a conventional example.

[Explanation of symbols]

 26 Nozzle 28 Swirling Flow Ejection Path 35 Cylindrical Body 36 Air Inflow Path 40 Rod-Shaped Wall 41 Wide Part 42 Through-hole Part

Claims (1)

[Scope of utility model registration request] 1. A sprayer equipped with a trigger type pump mechanism, wherein a swirl flow jet passage 28 extending in the circumferential direction is provided so as to face the nozzle 26, and the front portion of the nozzle 26 surrounds the front of the nozzle 26. A tubular body 35 is provided, the tubular body 35 is provided so that its center coincides with the center of the nozzle 26, and an air inflow path 36 is provided, and the inner surface of the tubular body 35 faces the center line of the tubular body 35. A plurality of projecting rod-shaped impingement walls 40 are provided, and the rod-shaped impingement wall 40 is provided with a wide portion 41 having a width wider than that of the base of the rod-shaped impingement wall 40 at the tip end.
The cylindrical body 35 is formed to have a length that does not reach the center of the cylindrical body 35, and the through hole 42 is formed between the tip ends of the plurality of rod-shaped collision walls 40.
Formed atomizer.