JPH0721240Y2 - Small manual reciprocating sprayer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial Application Field" The present invention relates to a small manual reciprocating atomizer.

"Problems to be Solved by Conventional Techniques and Inventions" Conventionally, there is a small-sized manual sprayer equipped with a downward spraying head that is used by being attached to the mouth of a liquid container. This type of atomizer usually has a suction valve at the lower end, and a vertical cylinder with a suction pipe hung from the lower end is internally urged upward to accommodate an annular piston and pushed down. The flow path pipe is hung from the spray head and mechanically linked to the annular piston, and the flow path pipe is equipped with a discharge valve.By pushing down the push down spray head and returning it, the suction valve, discharge Operate the valve to suck the liquid in the liquid container into the cylinder through the suction pipe, pressurize it, supply it to the downward spray head through the flow path pipe, and spray it from the spray nozzle of the downward spray head. It is like this.

However, this sprayer obtains the spray only when the push-down head is pushed down, and continuous spraying cannot be obtained even if the push-down spray head is rapidly and continuously operated.

The present invention is intended to solve such conventional problems.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a vertical fixed cylinder 1 having a suction valve 2 at the lower end and a mounting base cylinder 8 connected at the upper end. A movable cylinder 3 also serving as a piston having a discharge valve 4 is internally slidably and urged upward, and the flow passage pipe 6 is hung from a pressing spray head 5 arranged above the mounting base cylinder 8. The flow passage pipe is deeply inserted into the piston-combining movable cylinder 3 located at the upper limit, and the lower end of the flow passage pipe is mechanically connected to the inside of the piston-combining movable cylinder 3 so that liquid can flow therethrough. In addition,
A ring-shaped fixed skirt member 7 supported by the mounting base cylinder 8 through a support cylinder 11 is inserted into the lower portion of the movable cylinder 3 that also serves as a piston, and the movable cylinder that also serves as a piston is provided on the outer periphery of the fixed skirt member. 3, the flow path pipe 6 is slidably fitted to the inside and the inner circumference thereof, and the volume of the piston-movable cylinder 3 is appropriately smaller than the volume of the fixed cylinder 1. To do.

"Operation" Since it has the above configuration, it may be used in the same manner as before, but
With the operation of the pressing spray head 5, the following operation occurs.

Push down When the spray head is pushed down, the movable cylinder 3 that also serves as the piston moves down and the fixed cylinder 1
The inside is in a pressurizing state, the inside of the movable cylinder 3 also serving as a piston is in a depressurizing state, and the pressurized liquid in the fixed cylinder 1 flows into the movable cylinder 3 also serving as a piston through the discharge valve 4, and an amount corresponding to the volume difference between both cylinders The pressurized liquid is supplied from the movable cylinder 3 also serving as the piston to the pressing spray head 5 through the flow path pipe 6, and is sprayed as mist from the spray nozzle 21 of the pressing spray head.

When the push-down spray head returns, the movable cylinder 3 that also serves as the piston rises and the fixed cylinder 1
The inside is in a decompression state, the inside of the piston-combining movable cylinder 3 is in a pressurizing state, and the pressurized liquid in the piston-combining movable cylinder 3 is supplied to the pressing spray head 5 through the flow path pipe 6,
From the spray nozzle of the push-down spray head, mist is ejected. At the same time, the liquid flows into the fixed cylinder 1 in the depressurized state through the suction valve 2.

[Examples] The drawings show examples of the present invention.

The illustrated sprayer is a synthetic resin reciprocating sprayer, and is provided with an inward flange 9 on a mounting base cylinder 8 to be screwed into the mouth of a liquid container, and two inward and outward support cylinders 10 and 11 are provided from the inward flange. And the fixed cylinder 1 is fitted and locked to the outer support cylinder 10 at the upper end portion to hang down, and the fixed cylinder is provided with a suction valve 2 by a ball valve inside the lower part, and A suction pipe 12 is hung from the lower end.

In addition, inside the fixed cylinder 1, a movable cylinder 3 that also serves as a piston is slidably mounted outside the above-mentioned inner support cylinder 11.
Also, a spring 14 is installed below it to urge the movable cylinder 3 that also serves as a piston upward. The movable cylinder that also serves as a piston is provided with a discharge valve 4 by a ball valve inside the lower end and a fixed cylinder on the outer periphery of the lower part. A skirt 13 that fits inside 1 is provided, and a connecting piece 15 is provided on the inner surface of the lower portion.

The mounting base cylinder 8 has a guide cylinder 16 projecting from the upper surface thereof, and the pressing spray head 5 is fitted in the guide cylinder so as to be slidable up and down. The slide pipe is slidably fitted in the inside support pipe 11 and the flow path pipe 6 is slidably inserted in the suspend pipe 17 and the lower end thereof is a piston. Connecting piece of dual-purpose movable cylinder 3
The fixed skirt member 7 is fitted and connected to the lower end of the inner support cylinder 11 located in the movable cylinder 3 that also serves as a piston.
Is fitted and fixed, and the inner circumference of the piston-cum-movable cylinder 3 and the outer circumference of the flow path pipe 6 are slidably fitted together, and an accumulator valve 18 is provided in the downward spray head 5.

The storage pressure valve 18 is provided with a storage pressure cylinder 19 having a larger diameter and a shorter stroke than the fixed cylinder 1 in the push-down spray head 5, and a storage pressure piston 20 is provided above the flow path pipe 6 to store the storage pressure cylinder. A valve seat 22 and a valve hole 23, which are slidably fitted in the storage cylinder 19, open to the spray nozzle 21, are provided on the accumulator cylinder 19, and a valve portion 24 is provided on the upper end of the flow path pipe 6, so that the valve seat 22. When the pressurized liquid flowing into the storage pressure cylinder 19 through the flow path pipe 6 reaches a certain pressure or higher, the storage pressure piston 20 has a large diameter. Hydrodynamically, the valve portion 24 is lowered against the spring 14 to separate the valve portion 24 from the valve seat 22 so as to obtain a valve opening and to secure a predetermined hydraulic pressure required to obtain a good spray.

With the above-described configuration, the mounting base cylinder 8 is used by being screwed to the mouth portion of the liquid container containing the liquid, but by the pushing down and returning of the pushing down spray head 5, the reciprocating movement described in the above-mentioned action section is performed. A spraying operation occurs, and at that time, the storage pressure valve 18 operates at the same time to secure a predetermined liquid pressure required for spraying, and always provides good spraying.

[Advantage of Invention] According to the present invention, the fixed cylinder 1 and the movable cylinder 3 which also serves as a piston reversely pressurize and depressurize each other when the pressing spray head 5 is pressed and returned. Can also be obtained as a spray, and continuous or near spray can be obtained. It has a simple structure and can be provided at low cost, which is very useful in practice.

[Brief description of drawings]

1 is a cutaway side view, and FIG. 2 is a cutaway side view showing an operating state. 1 ... Fixed cylinder, 2 ... Suction valve 3 ... Movable cylinder that also serves as piston 4 ... Discharge valve, 5 ... Pressing spray head 6 ... Flow path pipe, 7 ... Fixed skirt member 8 ... Mounting base cylinder , 18 …… Livestock pressure valve

Claims (1)

[Scope of utility model registration request] 1. A vertically movable cylinder 3 having a suction valve 2 at its lower end and a base cylinder 8 connected at its upper end, and a movable cylinder 3 also serving as a piston having a discharge valve 4 at its lower end. The mounting base cylinder 8 is movably and urged upward to be internally mounted.
The flow path pipe 6 is hung from the pressing spray head 5 disposed above the flow spray pipe to deeply loosely insert the flow path pipe into the piston-combining movable cylinder 3 located at the upper limit, and the lower end of the flow path pipe. Is mechanically connected to the lower part of the piston-cum-movable cylinder 3 so that liquid can flow, and is further supported by the mounting base cylinder 8 via the support cylinder 11 at the lower part of the piston-cum-movable cylinder 3 in a ring shape. Of the fixed skirt member 7 is slidably fitted to the outer circumference of the fixed skirt member 3 and the flow passage tube 6 is slidably fitted to the inner circumference thereof. A small manual reciprocating atomizer characterized in that the volume of the cylinder 3 is appropriately smaller than the volume of the fixed cylinder 1.