JPH0434905Y2 - - Google Patents

Description

[Detailed explanation of the idea] "Industrial application field" This case relates to a foam ejector.

"Prior Art" For example, a trigger-type foam ejector is known in which a second nozzle is fitted onto the outer surface of the nozzle of the trigger-type atomizer, and foam is ejected when the trigger is operated. The second nozzle has a rear half of the cylinder part fitted into the outer circumferential surface of the spray nozzle, an inner surface of the cylinder hole of the front half of the cylinder part is formed into a tapered surface with a small front inner diameter, and a front part of the spray nozzle inside the cylinder hole. The outside air intake is opened at the top.

``Problems to be solved by the invention'' The foam ejector mentioned above is a trigger type and easily fatigues the fingers, so it is not suitable when a relatively large amount of foam is required, and the second nozzle is used for foaming. The state of the bubbles varied depending on the taper angle, etc., making the structure complicated.

In this case, a second nozzle with a simple structure is attached to the nozzle of a vertical pump sprayer, which makes it easy to use and provides appropriate foaming. .

``Means for Solving the Problems'' The stem 9 has a stem 9 that is biased upward from the cylinder 2 installed in the container body so as to be movable up and down, and a push-down head 13 with a first nozzle is attached to the upper end of the stem. It consists of a vertical pump type sprayer 1 which is fitted so that the liquid inside the container is sprayed from the first nozzle 14 when the head is pressed down, and a second nozzle 23 which is fitted into the first nozzle 14, The second nozzle has an appropriate distance 25 between the first nozzle front end surface and the second nozzle front wall 24, and a rear part of a peripheral wall 26 that protrudes rearward from the outer periphery of the second nozzle front wall. In addition to fitting into the outer peripheral surface of the nozzle, the second nozzle front wall 24 was opened wide and a foaming net 28 was stretched over the opening 27, and an outside air intake port 29 was opened on the inner surface of the rear portion between the two nozzles. .

"Function" In the state shown in the figure, the stem 9 is screwed into the female threaded cylinder 2a fitted to the upper end of the cylinder 2 with the male threaded cylinder 13a hanging down from the lower end of the push-down head 13.
is pushed into the cylinder 2 to reduce the overall height for easy packaging.When the screws are unscrewed from this state, the spring 12 pushes up the cylindrical piston 10, causing the stem 9 and the push-down head to 13
rises. When the head 13 is pressed down from this state, the pressure inside the cylinder becomes high, the first discharge valve 11 and the second discharge valve 22 open, and the mist is ejected from the first nozzle hole 16 for spraying into the front part of the second nozzle 23. However, since the front wall of the second nozzle is open and the foaming net 28 is stretched over the opening, there is also an outside air intake port on the inner surface of the rear part between the net and the front end wall of the first nozzle. 29 is open, so when it adheres to the net and passes through the net, it foams and is ejected. When the push-down head 13 is released, the stem and push-down head are raised by the spring 12 as described above, and at this time, the first and second discharge valves 11, 22
Since it is closed, the suction valve 3 opens due to the negative pressure inside the cylinder, and the liquid inside the container to which the foam ejector is attached is sucked into the cylinder through the suction pipe.

"Example" 1 is a vertical pump type sprayer, 2 is a cylinder,
3 is a suction valve provided at the bottom of the cylinder. A rod-shaped member 4 is erected within the cylinder to increase the compression ratio of the pump. Note that the rod-shaped member may be provided as necessary. An outward flange 5 protrudes from the top of the cylinder, and the container body is attached by pressing the upper surface of the outward flange to the lower surface of an inward flange 7 attached to the upper end of the peripheral wall 6, and the outer periphery of the outward flange to the inner surface of the upper end of the peripheral wall. A tube 8 is attached.

9 is a stem with a cylindrical piston 1 at the lower end of the stem.
A first discharge valve 11 is formed on the upper inner surface of the stem, and a push-down head is fitted on the upper end of the stem. Cylindrical piston 10
is urged upward by a spring 12.

The push-down head 13 has a first nozzle 14 protruding laterally, a valve member 15 having a spin mechanism on its front end face is fitted into the first nozzle, and a first nozzle hole is formed at the front end of the first nozzle. A mouth cap 17 having a diameter of 16 is fitted. The valve member has disc parts 19 and 20 on both the front and rear sides of a ring-shaped elastic deformation part 18, and a small-diameter guide rod 21 protrudes from the center of the rear surface of the rear disc part. The second discharge valve 22 is loosely inserted into the rear part of the nozzle hole, and is formed by the rear disc part and the forward step part provided in the first nozzle hole. The stem fitting cylinder of the push-down head 13 is formed as a male threaded cylinder 13a, which is screwed into the female threaded cylinder 2a fitted to the upper end of the cylinder.

A second nozzle 23 is screwed into the first nozzle. The second nozzle has a front end surface of the first nozzle and a second nozzle.
A suitable distance 25 is placed between the nozzle front wall 24,
Peripheral wall 2 protruding rearward from the outer periphery of the second nozzle front wall
6. The rear part of the second nozzle is screwed onto the outer circumferential surface of the first nozzle, and the front wall of the second nozzle has a large opening, and a foaming net 28 is stretched over the opening 27, and outside air is taken in to the inner surface of the rear part of the above-mentioned space. The mouth 29 is open. In the illustrated example, the inner cylinder 30 is made to protrude rearward from the inner peripheral edge of the front wall, and the rear end surface of the inner cylinder is brought into contact with the front end surface of the first nozzle, and a through hole 31 is formed in the front wall 24 and a groove is formed in the front end surface of the first nozzle. The hole 31 is bored between the second nozzle circumferential wall and the inner cylinder 30, and the groove forms an outside air intake port. A hole may be provided to serve as an outside air intake.

``Effect of the invention'' This invention has the structure described above, and has a stem in which the main body of the foam ejector is vertically pump-type and is biased upward from a cylinder installed in the container body so as to be able to move up and down. A push-down head is fitted to the upper end of the stem, and when the head is pushed down, the liquid inside the container is sprayed from the first nozzle 14 attached to the push-down head, so a trigger-type sprayer is used. In addition, the second nozzle has its front wall opened widely and the foaming net 28 is stretched across the opening, and the foaming net 28 is stretched between the net and the front end wall of the first nozzle. Since it is only necessary to form the outside air intake port 29 on the inner surface of the rear portion, the structure of the second nozzle can be simplified and foaming can be performed reliably and easily.

[Brief explanation of the drawing]

The drawing is a sectional view of the foam ejector according to the present invention, with the head depressed and the stem inserted into the cylinder to reduce the overall height. 14...first nozzle, 23...second nozzle.

Claims (1)

[Scope of utility model registration request] It has a stem 9 which is biased upwardly from a cylinder 2 installed in the container body to stand up vertically, and a push-down head 13 with a first nozzle is fitted to the upper end of the stem, and by pushing down the head. It consists of a vertical pump type sprayer 1 provided so that the liquid inside the container is sprayed from a first nozzle 14, and a second nozzle 23 fitted into the first nozzle 14, and the second nozzle is connected to the first nozzle. A suitable distance 25 is placed between the front end surface and the second nozzle front wall 24, and the rear part of the peripheral wall 26 that protrudes rearward from the outer periphery of the second nozzle front wall is fitted into the first nozzle outer peripheral surface. A foam ejector characterized in that a two-nozzle front wall 24 is opened wide, a foaming net 28 is stretched over the opening 27, and an outside air intake port 29 is opened on the inner surface of the rear portion between the two nozzles.