JPH084125Y2 - 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 sprayer usually has a vertical cylinder that has a suction valve at the lower end and has a suction pipe hung from the lower end, and is internally urged upward to accommodate an annular piston. To hang down the flow path pipe to mechanically link with the annular piston,
It is made by equipping the flow path pipe with a discharge valve, and by pressing down the spray head and returning it, the suction valve and the discharge valve work, and the liquid in the liquid container is sucked into the cylinder through the suction pipe. The pressure is applied, the pressure is supplied to the downward spray head through the flow path pipe, and the spray nozzle of the downward spray head sprays.

However, this sprayer obtains the spray only when the push-down spray head is pushed down, and no continuous spray is obtained no matter how quickly the push-down spray head is operated.

The present invention is to solve such a conventional problem.

"Means for Solving the Problem" A tubular plunger 5 having a piston 6 attached to a lower end portion thereof is inserted into a vertical cylinder 1 from above so that the tubular plunger 5 can freely move in and out,
Moreover, the upper end of the cylinder 1 is closed so that the lower side of the piston 6 in the cylinder 1 is the first pressurizing chamber 1a, and the upper side thereof is the opposite of the first pressurizing chamber 1a, and the second pressurizing unit has a small volume. It is formed in the pressure chamber 1b, and two suction valves 2 and 3 are provided in the lower part of the cylinder 1,
The first suction valve 2 is connected to the first pressurizing chamber 1a through the flow paths 15 and 16 as appropriate.
In addition, the second suction valve 3 is communicated with the second pressurizing chamber 1b, the suction pipe 4 is hung from the lower end of the cylinder 1, and the two suction valves 2, 3 are communicated with each other through the flow passage 17 as appropriate. Further, a valve hole 71 communicating with the first and second pressurizing chambers 1a, 1b is bored on the side surface of the lower end portion of the tubular plunger 5, and the piston 6 is formed into an annular shape to form a valve hole 71 at the lower end portion of the tubular plunger 5. When the tubular plunger 5 is moved downward, the piston 6 moves to the upper limit when the tubular plunger 5 is moved downward so that the valve hole 71 is opened on the side of the first pressurizing chamber 1a and the tubular plunger 5 is moved upward. A first discharge valve 7 configured to open the valve hole 71 on the second pressurizing chamber 1b side by moving the piston 6 to the lower limit is provided, and the first pressurizing chamber 1a and the first pressurizing chamber 1a are provided in the middle portion of the tubular plunger 5. The second pressurizing chamber 1b is provided with a second discharge valve 8 which is commonly used for mutual action, and a downward spray head 9 is arranged above the cylinder 1 to form a tubular shape. Is the upper end and the fitting connecting the plunger 5, further characterized in that the biased upward by a spring 14 which arranged tubular plunger 5 to depressed spray head 9 in place.

The first discharge valve 7 may be used as the piston 6.

"Operation" Since it has the above-mentioned configuration, it may be used in the same manner as in the prior art, but the following operation occurs with the operation of the downward spray head 9.

When the downward spray head is pushed down, as shown in FIG. 2, first, the tubular plunger 5 resists the spring 14 and descends with respect to the piston 6, and the first discharge valve 7 is placed on the first pressurizing chamber 1a side. Open and close on the second pressurizing chamber 1b side, then the piston 6 descends together with the tubular plunger 5, the first suction valve 2 closes, the second suction valve 3 opens, and the first pressurizing chamber 1a opens. Is in a pressurizing state, the second pressurizing chamber 1b is in a depressurizing state, and the pressurized liquid in the first pressurizing chamber 1a is a downward spray through the first discharge valve 7, the tubular plunger 5 and the second discharge valve 8. Head 9
Into the mist and is ejected as mist from the spray nozzle 91. Further, new liquid flows into the second pressurizing chamber 1b in the depressurized state through the suction pipe 4 and the second suction valve 3.

When the pressing spray head returns, the tubular plunger 5 rises with respect to the piston 6 due to the elasticity of the spring 14, and the first discharge valve 7 closes on the first pressurizing chamber 1a side and opens on the second pressurizing chamber 1b side. Then, the piston 6 rises together with the tubular plunger 5, so that the first pressurizing chamber 1a is in the depressurizing state, the second pressurizing chamber 1b is in the pressurizing state, and the pressurized liquid in the second pressurizing chamber 1b is the first. Discharge valve 7, tubular plunger 5 and second
It flows through the discharge valve 8 into the downward spray head 9, and is sprayed as mist from the spray nozzle 91. In addition, the suction pipe 4 and the first suction valve 2 are provided in the first pressurizing chamber 1a which is in the depressurized state.
A new liquid flows in through.

[Example] The drawings show a small manual reciprocating sprayer made of synthetic resin according to the present invention.

In the illustrated example, a cylinder 1 is fitted and hung vertically in a mounting base cylinder 10 that is screwed into the mouth of a liquid container, and the cylinder is fitted with an outer cylinder 12 outside a main cylinder 11. Then, the mouth tube 13 is connected to the upper end thereof.

At the bottom of the cylinder 1, there are a first suction valve 2 and a second suction valve 3
And a main cylinder 11 and an outer cylinder 12 on the outlet side of the first suction valve 2.
The flow path 15 between the
The outlet side of the suction valve 3 is communicated with the upper end of the main cylinder 11 through the flow path 16 between the main cylinder 11 and the outer cylinder 12, and the suction pipe 4 is hung from the lower end of the outer cylinder 12, The suction pipe is connected to the inlet sides of both suction valves 2 and 3 through a flow path 17 formed between the main cylinder 11 and the outer cylinder 12.

A piston 6 is slidably fitted in the main cylinder 11, and a tubular plunger 5 connected to the piston at its lower end is provided with a mouth cylinder 13
It is movably inserted through, and protrudes upward, and a skirt 53 is provided at an appropriate position so that it is slidably fitted in the mouth tube 13.
As a result, the lower side of the piston 6 in the main cylinder 11 is placed in the first pressurizing chamber.
1a, and the upper side is the second pressure chamber 1b. The tubular plunger 5 has two upper and lower members 52, 51 for convenience of production.
The skirt 53, which is a separate member, is fitted and fixed in place on the upper member 52.

A spring 14 is provided inside the main cylinder 11 so that the lower end of the tubular plunger 5 is pushed upward.

At the lower end of the tubular plunger 5, there are a first pressure chamber 1a and a second pressure chamber 1a.
A switching type first shared with the pressurizing chamber 1b by mutually opposing actions.
The discharge valve 7 is also provided by the piston 6. That is, the lower end of the tubular plunger 5 is closed, and a valve hole 71 communicating with both the pressurizing chambers 1a and 1b is bored on the side surface of the lower end portion, and the annular piston 6 is slid up and down slightly corresponding to the valve hole. As shown in FIG. 2, the piston 6 is located at the upper limit of the vertical sliding movement so that the first discharge valve 7 is closed on the second pressurizing chamber 1b side and The valve hole 71 is opened on the side of the first pressurizing chamber 1a, and as shown in FIG. 1, the piston 6 is located at the lower limit with respect to the tubular plunger 5.
The first discharge valve 7 is closed on the 1a side, and the valve hole 71 is formed on the second pressurizing chamber 1b side.

Further, in the middle portion of the tubular plunger 5, the first pressurizing chamber 1a
And the second pressurizing chamber 1b are provided with a second discharge valve 8 which is commonly used for normal operation.

Then, the guide cylinder 18 is erected on the upper surface of the mounting base cylinder 10, and the push-down spray head 9 is equipped in the guide cylinder so that the push-down spray head 9 can be pushed down. The stem 92 is fitted and connected to the upper end of the tubular plunger 5.

In addition, in the figure, 19 is an intake hole for preventing the negative pressure of the liquid container.

[Advantages of the Invention] According to the present invention, the downward spraying head 9 is pushed down from the first pressurizing chamber 1a, and when returning, the second pressurizing chamber 1b is pressed down. Pressurized liquid can be supplied to the head 9, and therefore atomization can be continuously generated from the atomizing nozzle 91 of the downward atomizing head 9, and
There is no need to form another storage chamber, the structure is simple,
Furthermore, by installing two suction valves 2 and 3 at the bottom of the cylinder 1,
The first suction valve 2 is connected to the first pressurizing chamber 1a through the flow paths 15 and 16 as appropriate.
In addition, since the second suction valve 3 is communicated with the second pressurization chamber 1b, that is, the first and second suction valves 2 and 3 are connected to the first and second pressurization chambers 1a and 1b.
Since they are communicated with each other through separate flow paths 15 and 16,
Through the suction pipe 4, the first suction valve 2 and the flow path 15 in the first pressurizing chamber 1a, and through the suction pipe 4, the second suction valve 3 and the flow path 16 in the second pressurizing chamber 1b. As a result, the liquid respectively flows in, so that the liquid can be efficiently supplied into both the pressurizing chambers 1a and 1b, the amount of spray is large, and the spray efficiency is good.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing an embodiment of the present invention, and FIG. 2 is a partially enlarged vertical sectional side view of the same embodiment. 1 ... Cylinder, 2 ... First suction valve, 3 ... Second suction valve, 4 ... Suction pipe, 5 ... Tubular plunger, 6 ...
... piston, 7 ... first discharge valve, 8 ... second discharge valve, 9
…… Pressing spray head, 10 …… Mounting base cylinder, 1a …… First
Pressure chamber, 1b ... Second pressure chamber

Claims (1)

[Scope of utility model registration request] 1. A vertical cylinder 1 is provided with a tubular plunger 5 having a piston 6 attached to a lower end thereof so that the tubular plunger 5 can be inserted and removed from above, and an upper end portion of the cylinder 1 is closed so that the inside of the cylinder 1 is closed. The lower side of the piston 6 in the first pressure chamber 1a,
Also, the upper side is formed into a small volume second pressurizing chamber 1b by the effect of the first pressurizing chamber, and two suction valves 2, 3 are provided at the bottom of the cylinder 1.
Is provided, and the first suction valve 2 is connected to the first suction valve 2 via the flow paths 15 and 16 as appropriate.
The suction chamber 1a and the second suction valve 3 are communicated with the second pressure chamber 1b, the suction pipe 4 is hung from the lower end of the cylinder 1, and both suction valves 2 are appropriately connected via the flow path 17. , 3 and communicate with the first and second pressurizing chambers 1 on the side surface of the lower end of the tubular plunger 5.
By making a valve hole 71 communicating with a and 1b and fitting the piston 6 in an annular shape at the valve hole 71 position at the lower end of the tubular plunger 5 so that it can slide up and down slightly, the tubular plunger 5 can be lowered. The piston 6 moves to the upper limit to move the valve hole 71 into the first pressurizing chamber 1a.
The first discharge valve 7 is configured to be opened on the side of the second pressurizing chamber 1b so that the piston 6 moves to the lower limit when the tubular plunger 5 rises, and the valve hole 71 is opened on the side of the second pressurizing chamber 1b. A second discharge valve 8 which is shared by the first pressurizing chamber 1a and the second pressurizing chamber 1b by mutual action is provided in the middle part of the cylinder 1
The downward spray head 9 is fitted and connected with the upper end of the tubular plunger 5, and the tubular plunger 5 or the downward spray head 9 is biased upward by a spring 14 arranged in a proper position. A small manual reciprocating sprayer characterized by.