JPS6338935Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention relates to a small manual sprayer with an air pump.

``Problems to be solved by conventional techniques and ideas'' In a generally well-known atomizer, compressed air is supplied by an air pump into a container containing a liquid to pressurize the liquid, and the pressurized liquid is There are some that obtain spray by sending it through a valve to a spray head, and in the spray head, passing it through a spin groove and ejecting it from a nozzle while applying high speed rotation.
Widely used for horticulture, etc.

This type of atomizer is usually large, with a capacity of liters of liquid, and the air pump is powerful and can exert considerable pressure on the liquid, even manually, thus reducing the amount of liquid in the atomizing head. The rotation and jetting can be made stronger, and the spray particles can be made finer.

However, if a small manual atomizer with an air pump for perfumes, etc., which is carried in a handbag or the like is constructed using the same principle, there will be severe restrictions on the air pump and other components, and the fluid pressure will not be controlled as desired. It is impossible to obtain a good spray with fine particles.

Therefore, the present invention aims to provide a good spray even when the hydraulic pressure is low, to enable miniaturization, and to facilitate operation.

"Means for Solving Problems" In the present invention, an air pump 2 is attached below the liquid container 1, a spray device 3 is detachably attached to the mouth and neck part 1b of the liquid container 1, and the air pump 2 is attached to the liquid container 1. A rotary cylinder 2c is rotatably mounted under the rotary cylinder, and the liquid container 1 is operated in accordance with the rotation of the rotary cylinder.
The spray device 3 includes a pump main body 21 for sending compressed air inside, and the spray device 3 has a stem 3m protruding upward from a base 3a which is detachably attached to the mouth and neck portion 1b of the liquid container 1. A spray head 3 in which a spin groove 3v and a nozzle 3w are formed on the stem.
U is attached, and the base body 3a is equipped with two discharge valves C and D that open when the stem 3m is pushed in, and a pipe 3p whose lower end opens into the lower part of the liquid container, and one discharge valve C is installed. The inlet side of the other discharge valve D is opened to the pipe 3p, and the inlet side of the other discharge valve D is opened to the upper part of the liquid container, and furthermore, a liquid passage 3r and an air passage 3s that are open from the upper end to the lower end are provided in the stem 3m, so that both passages are connected to each other. The upper ends of the liquid passage 3r and 3s are communicated with the spray head 3u, the lower end of the liquid passage 3r is communicated with the outlet side of one of the discharge valves C, and the lower end of the air passage 3s is communicated with the outlet side of the other discharge valve D. It consists of

"Function" Since the configuration is as above, when the rotary cylinder 2c of the air pump 2 is rotated, the pump body 21
is activated, and compressed air is supplied into the liquid container 1.

When the spray head 3u is pushed down in this state, the stem 3m is lowered, the discharge valves C and D are opened, and the pressurized liquid and compressed air in the liquid container 1 are transferred to the liquid passage 3r.
is supplied to the spray head 3u through the air passage 3s, mixed in the spray head, and formed into the spin groove 3.
r, it is rotated at high speed in the spin groove, and the nozzle 3
It spews out from W as a mist.

When air is mixed with the liquid before reaching the spin grooves 3v, fragmentation of the spray particles is promoted and the mist is made finer.

"Example" The illustrated embodiment will be described below.

In the figure, 1 is a liquid container equipped with an air pump 2, and 3 is a spray device detachably screwed onto the mouth of the liquid container.

The liquid container 1 is a wide-mouthed container with a cylindrical body portion 1a, and has a thread 1c on the outer periphery of the neck portion 1b.

The air pump 2 has a hanging cylinder 2a suspended in series from the body part 1a, an engaging part 2b made of uneven stripes is provided around the outer edge of the lower end of the hanging cylinder, and a rotating cylinder 2c is arranged below this, The rotating cylinder is provided with an engaging part 2d made of uneven stripes on the inner edge of the upper end, and is rotatably engaged with the engaging part 2b of the hanging cylinder, so that the rotating cylinder is inserted into the hanging cylinder 2a and the rotating cylinder 2c. A pump main body 21 that operates as the liquid container 1 rotates and sends compressed air into the liquid container 1 is installed inside the pump body 21.

Further, a cylinder 2e with an open lower end is vertically disposed coaxially with the hanging cylinder 2a from the bottom surface 1d of the liquid container 1, and an inner cylinder 2 is integrally connected at the lower end to the inside and outside of the cylinder.
A lifting body 2f consisting of an outer circumference 2h and an inner cylinder 2g is disposed, and a piston 2i made of rubber, soft synthetic resin, etc. is fitted and fixed to the upper end of the inner cylinder 2g, and a triangular wave-shaped guide is provided on the outer peripheral surface of the outer cylinder 2h. A groove 2j is provided, and a hanging tube 2a is provided.
There are several balls 2 here and there on the inner surface of the lower end.
k is rotatably supported, and these balls are engaged with its guide groove 2j.

The rotary tube 2c is integrally connected with a bottom 2l in which the lowered elevating body 2f is housed and a guide tube 2m for the elevating body, and the outer surface of the guide tube and the inner surface of the inner tube 2g of the elevating body are mutually connected. A vertical protrusion 2n and a vertical groove 2o that are slidably engaged are provided.

Further, a top wall 2p is connected to the upper end of the inner cylinder 2g of the elevating body 2f, and a valve hole 2q is provided in the center of the top wall.
The upper side of the valve hole is closed with a valve body 2r formed integrally with the piston 2i to constitute an air suction valve A,
Further, a valve hole 2s is provided in the center of the bottom 1d of the liquid container 1, and the upper side of the valve hole is closed with a valve body 2t made of a rubber plate, a soft synthetic resin plate, etc. attached to the bottom 1d, and the air discharge valve B It consists of

Next, the spray device 3 sprays the mouth and neck portion 1b of the liquid container 1.
The base has a cap-shaped base 3a that is screwed into the top wall 3b, and the base has a thread 3d on the inner surface of the peripheral wall 3c that threads into the thread 1c of the neck part 1b, and a through hole 3e in the center of the top wall 3b. A locking tube 3f is provided vertically from the inner surface of the top wall 3b to surround the through hole, and a packing 3g is attached to the inner surface of the top wall 3b to press the top surface of the mouth and neck portion 1b in an airtight and watertight manner. are doing.

Further, the through hole 3 is provided inside the locking cylinder 3f.
e, a small cylinder 3h is engaged and fixed vertically, and the small cylinder has an inward flange 3 at its lower end.
i, a small through hole 3j is formed on the lower side surface, a stepped portion 3k is formed on the inner edge of the upper end, and a rubber plate,
Flange-shaped valve body 3L made of an elastic material such as a soft synthetic resin plate
is fitted, and the valve body connects its stepped portion to the top wall 3 of the base body 3a.
b, and the inner diameter is formed to be slightly smaller than the through hole 3e in the top wall and the inner circumference of the small cylinder 3h.

Then, the stem 3m is inserted into the through hole 3e of the base top wall and the flanged valve body 3, and the lower end 3 of the stem is inserted.
n is formed into a cylindrical shape, and is inserted vertically movably into the small cylinder 3h with a slight gap, and a small cylinder 3o is fitted vertically into the lower end 3n to integrate the small cylinder. The small cylinder is slidably inserted into the inner periphery of an inward flange 3i at the lower end of the small cylinder, and a pipe 3p extending to the lower part of the liquid container is fitted and vertically installed at the lower end of the small cylinder.

Further, the stem 3m is provided with a groove 3q on the outer periphery of the middle part thereof, into which the inner periphery of the flanged valve body 3l fits, and
Below the stem 3m, there is a liquid passage 3r that opens from the top surface of the stem through the inside of the stem into the groove 3q, enters the stem again through the groove, and communicates with the small cylinder 3o, and from the top surface of the stem. Concave groove 3q through the inside of the stem
An air passage 3s is provided in the small cylinder 3h (the position of which is 180 degrees different from the liquid passage in the groove) and communicates with the inside of the small cylinder 3h through the groove, and these passages 3r and 3s are connected to the groove 3q. is closed with a flanged valve body 3l, which constitutes the discharge valves C and D, and a compression spring 3t is installed inside the small cylinder 3h to spring the stem upward, and the discharge valves C and D are normally closed. A spray head 3u communicating with the liquid passage 3r and the air passage 3s is fitted to the upper end of the stem, and the spray head has a spin groove 3v and a nozzle 3.
w is provided.

With the above configuration, when liquid is stored in the liquid container 1 and the rotary barrel 2c of the air pump 2 is rotated to the right or left, the elevating body 2f also rotates, causing the ball 2k to engage with the guide groove 2j. Lifting body 2f based on
moves up and down, the piston 2i moves up and down, the air suction valve A and the air discharge valve B work alternately, and the air pump 2 supplies compressed air into the liquid container 1.

As a result, the internal pressure within the liquid container 1 rises, compressed air is accommodated in the rising layer, and pressurized liquid is accommodated in the lower layer.

When the spray head 3u is pushed down in this state, the stem 3m descends against the compression spring 3t, the flanged valve bodies 3l of the discharge valves C and D are deformed, and the discharge valves C and D are opened. The liquid in the liquid container 1 flows into the spray head 3u through the pipe 3p, the small cylinder 3o, and the liquid passage 3r of the stem 3m due to the internal pressure, and the air in the liquid container 1 also flows into the spray head 3u due to the internal pressure. The liquid flows into the spray head 3u through the small through hole 3j of the cylinder 3h, the small cylinder 3h, and the air passage 3s of the stem 3m, and the liquid and air are mixed in the spray head and ejected as mist from the nozzle 3w. do. In this way, when air is mixed with the liquid before reaching the spin grooves 3v, fragmentation is promoted and spray particles can be made finer.

The above is a case of an upright position, but an inverted position may also be used, and in this case, the flow path is switched between liquid and air.

In addition, the lower end 3 of the small cylinder 3h and the stem 3m
A vertical groove may be formed on one or both of the sliding surfaces by eliminating a gap between the sliding surface and the sliding surface.

``Effects of the invention'' According to the present invention, a small and easily operated air pump 2 can be attached, the overall structure can be made compact, and pressurized liquid and compressed air are supplied to the spray head 3u and mixed. , this is spin groove 3v
Since it is spouted from the nozzle while rotating at high speed,
Even if the pressure of the pressurized liquid is relatively low, the atomized particles are made finer by the atomization aided by the mixed air, and good atomization can be obtained even with a small size. Moreover, it can be used for both normal and inverted positions.

[Brief explanation of the drawing]

The drawing is a cutaway side view of the embodiment of the present invention. 1...Liquid container, 2...Air pump, 3...Spray device, 3m...Spray head.

Claims (1)

[Scope of utility model registration request] An air pump 2 is attached below the liquid container 1, and a spray device 3 is detachably attached to the mouth and neck portion 1b of the liquid container 1. , a pump main body 21 is installed inside the rotary cylinder and operates as the cylinder rotates to send compressed air into the liquid container 1; The stem 3m is freely pushed upward from the base body 3a to freely protrude, and a spin groove 3v is formed in the stem.
and a spray head 3u formed with a nozzle 3w, and the base body 3a is equipped with two discharge valves C and D that open when the stem 3m is pushed in, and a pipe 3p whose lower end opens into the lower part of the liquid container. Then, the inlet side of one discharge valve C is opened to the pipe 3p, and the inlet side of the other discharge valve D is opened to the upper part of the liquid container, respectively.
Furthermore, the stem 3m is provided with a liquid passage 3r and an air passage 3s that open from the upper end to the lower end, so that both passages 3r,
The upper end of the liquid passage 3s is communicated with the spray head 3u, the lower end of the liquid passage 3r is communicated with the outlet side of one of the discharge valves C, and the lower end of the air passage 3s is communicated with the outlet side of the other discharge valve D. A small manual sprayer with an air pump.