JP3144904U - Pneumatic chemical pump - Google Patents

Abstract

A pneumatic pump capable of extending the service life of an extendable container is provided.
A first and second one-way valves each including a base body having a base and a sealing lid, the base having a container, and communicating with the container on both sides of the base. 14 and 15, the opening includes the expansion container 2 corresponding to the first and second one-way valves, and a plurality of continuous inner concave ring tanks 21 and outer concave ring tanks 22 are provided on the outer peripheral edge of the elastic container. It is installed in a ring shape, and each inner concave ring tank is provided with an inclined surface portion 211 that is inclined toward the opening.
[Selection] Figure 4

Description

  The present invention relates to a pneumatic chemical pump (pneumatic chemical pump), and more particularly to a pneumatic chemical pump capable of completely discharging a working fluid from an expansion container and extending the service life of the expansion container.

A known pneumatic chemical pump 4 (see FIG. 1) is provided with a base 41 having one-way valves 411 and 412 and an expansion container 42 corresponding to the one-way valves 411 and 412 provided in the base 41. Including.
The expandable container 42 is formed of a soft rubber material, and a large number of concave tubs 421 having an annular shape are formed on the periphery thereof.
As a result, the necessary working fluid enters the expansion container 42 from the one-way valve 411, and when a predetermined working fluid is injected into the expansion container 42, the working fluid is discharged from the other one-way valve 412. Is done.
At the same time, the expansion container 42 is compressed in conjunction with it, whereby the expansion container 42 performs an extraction operation and discharges the working fluid using the compression effect.

The above-described known pneumatic chemical pump 4 can perform the extraction operation to discharge the working fluid, but each of the recessed tanks 421 at the periphery of the expansion container 42 is in a horizontal state, so that the expansion container 42 performs the extraction operation. After draining the working fluid, the working fluid liquid often remains in each concave tank 421.
In addition, if the expandable container 42 is not operating, these residual liquids are dried, and crystal A is formed on each concave tank 421.
Since the crystalline substance A on each concave tank 421 is compressed by the compression of the expansion container 42 when the pneumatic chemical pump 4 is actuated again, the crystalline substance A easily breaks through the expansion container 42 made of a soft rubber material. When the crystal A breaks through the expansion container 42, a hole may be formed in the expansion container 42 to cause a crack.
This adversely affects the service life and normal operation of the telescopic container 42.

  The present invention has been made in view of the above points. The purpose of the present invention is to use the slope on the inner annular tank when the telescopic container performs the extraction operation, so that the working fluid is completely discharged from the telescopic container. It is to provide a pneumatic chemical pump that discharges and achieves the extended service life of the telescopic container.

In order to solve the above problems, the present invention provides the following pneumatic chemical pump.
Pneumatic chemical pump is a base with a base and a sealing lid, installed in a container, and includes an expansion container whose opening corresponds to the first and second one-way valves,
The base includes a storage compartment, and further includes first and second one-way valves that communicate with the storage compartment on both sides of the base,
A large number of continuous inner concave and outer annular tanks are annularly installed on the outer peripheral edge of the telescopic container, and each of the inner concave annular tanks is provided with a slope portion that is inclined to the opening. .

  As described above, according to the present invention, the working fluid can be completely discharged from the telescopic container, so that the service life of the telescopic container can be extended.

2, 3 and 4 are respectively a three-dimensional disassembly instruction diagram of the present invention, a three-dimensional appearance instruction diagram of the present invention, and a cross-sectional instruction diagram at the AA position of FIG.
As shown in FIGS. 2, 3, and 4, the pneumatic pump according to the present invention includes at least a base body 1 and an extendable container 2.
The base body 1 includes at least a bottom base 11 and a sealing lid 12.
The bottom base 11 and the sealing lid 12 are firmly in contact with each other by a large number of fixing parts 13.
The bottom base 11 includes a storage area 111. In addition, first and second one-way valves 14 and 15 communicating with the container 111 are provided on both sides of the base 11.
The telescopic container 2 is installed in the storage area 111 of the base body 1.
Moreover, the opening corresponds to the first and second one-way valves 14 and 15.
A large number of continuous inner concave ring tanks 21 and outer concave ring tanks 22 are annularly installed on the outer peripheral edge of the elastic container 2.
On each inner concave ring tank 21, a slope portion 211 that slopes toward the opening is provided.
An elastic part 23 is fitted on each outer concave ring tank 22 to constitute a completely new pneumatic chemical pump with the above structure.

FIG. 5 is a sectional view showing the use state of the present invention.
A method of using the pneumatic chemical pump of the present invention will be described.
The working fluid 3 pushes the spherical body 141 from the first one-way valve 14 of the base body 1 and moves it upward.
As a result, the working fluid 3 enters the telescopic container 2.
When a predetermined working fluid 3 is injected into the telescopic container 2, an appropriate pressure is generated, and the sphere 151 in the second one-way valve 15 is pushed and moved downward, so that the working fluid 3 moves in the second one-way. It is discharged from the valve 15.
Since the pressure is generated when the working fluid 3 is discharged from the second one-way valve 15, the expansion container 2 is simultaneously linked and compressed. The telescopic container 2 performs an extraction operation.
In this way, the working fluid 3 is discharged using the pressure effect.
Since each sloped portion 211 is provided on each inner concave ring tank 21 of the stretchable container 2, the working fluid 3 in the stretchable container 2 is completely discharged from the stretchable container 2 along the sloped portion 211, and each inner recessed ring. It does not remain in the tank 21.
Moreover, since the elastic parts 23 are fitted on the outer concave ring tanks 22 of the elastic container 2, the elastic container 2 corresponds to the elastic parts 23 when compressed, and exhibits an optimal recovery elasticity.
Thus, the extraction efficiency of the telescopic container 2 can be improved.
As described above, the pneumatic pump according to the present invention is effective in improving the defects of the known structure, and when the expansion / contraction container performs an extraction operation, the working fluid is drawn from the expansion / contraction container by utilizing the inclined surface on the inner annular tank. It can be completely discharged, thus extending the service life of the telescopic container.

It is sectional drawing of a well-known pump. It is a three-dimensional exploded view of the pump of the present invention. It is a three-dimensional external view of the pump of the present invention. It is sectional drawing in the AA position of FIG. It is sectional drawing for demonstrating the use condition of the pump of this invention.

Explanation of symbols

4 Pneumatic chemical pump 41 Base body 411, 412 One-way valve 42 Telescopic container 421 Recessed tank A Crystallized body 1 Base body 11 Base 111 Containment area 12 Sealing lid 13 Fixed part 14 First one-way valve 141, 151 Sphere 15 Second one-way valve 2 Telescopic container 21 Inner concave ring tank 211 Slope 22 Outer concave ring tank 23 Elastic component 3 Working fluid

Claims (2)

A pneumatic chemical pump,
A base including at least a base and a sealing lid, the base including a container, and first and second one-way valves respectively communicating with the container on both sides of the base;
An expansion container that is installed in the storage section of the base body, the opening of which corresponds to the first and second one-way valves,
Inside the telescopic container, a large number of continuous inner concave and outer annular tanks are installed annularly on the outer periphery,
Each of the inner concave ring tank is provided with a sloped portion inclined to the opening,
Pneumatic chemical pump.   The pneumatic chemical pump according to claim 1, wherein an elastic part is fitted on each outer concave ring tank of the telescopic container.

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