JPH0814199A - Apparatus serving for both air suction and air blow - Google Patents

Abstract

PURPOSE:To provide an apparatus serving for both air suction and air blow capable of cleaning both a bottomed tapped hole and a penerating tapped hole. CONSTITUTION:In this apparatus serving for both air suction and air blow, a gripping part 3 is provided in a suspending state in an air passing part 2, which is provided with an air passage 4, on the middle of the air passage 4 an ejector 6 is provided, an air supply passage 7 penerating the gripping part 3 is communicated with the ejector 6, and a selector valve 1 is provided on a discharge port side of the ejector 6 of the air passage 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for both air suction and air blow, and more particularly to a used seal tape or a sticker attached to a screw part when cleaning a screw hole part of a solenoid valve, a control valve or the like. Used for removing sealing materials such as tight sticks and for cleaning various other equipment.

[0002]

2. Description of the Related Art Screw holes for mounting solenoid valves, control valves, etc. have a hole bottom 102 that does not penetrate, as shown in FIG. 4, and a screw hole 201 as shown in FIG. Some have no bottom and penetrate through to communicate with the flow path 202. When cleaning after removing sealing material such as sealing tape or tight stick from the screw part, air is blown with an air blower at the screw hole 101 with the hole bottom 102 shown in FIG. 4 to remove the sealing material, etc. As shown in FIG. 5, since the sealing material cannot be dropped into the flow path 202 in the threaded hole 201 penetrating therethrough, it is necessary to suck up the sealing material by air suction.

Although the necessity of an air blower and an air suction device has been described above by taking cleaning of screw holes as an example, the work requiring the air blower and the air suction device is not required for repairing various devices. There are many types. An air suction device 301 as shown in FIG. 6 is used for such suction.

The air suction device 301 has an air flow passage portion 302.
And a grip portion 303 hanging from the air flow portion 302 and gripped by an operator. The air passage 30 is provided in the air passage portion 302.
4, an air chamber 305 is provided so as to surround the air passage 304, an ejector 306 is arranged therein, and an air supply passage 307 penetrating the grip portion 303 is made to communicate with the air chamber 305.
An opening / closing operation button 309 is provided in the middle of 7.

When the screw hole 201 communicating with the flow passage 202 as shown in FIG. 5 is cleaned by the air suction device 301, the seal tape cannot be dropped into the flow passage 202. Must be discharged to the outside. At this time, as shown in FIG. 7, the worker attaches the suction pipe 401 to the end surface of the ejector 306 of the air suction device 301 on the suction hole 311 side with the screw 402 and grips the grip portion 302 of the air suction device 301. Then, pressing the operation button 309 causes compressed air to flow from the intake passage 307 into the air chamber 305 and the ejector 306, and compressed air is ejected from the end face of the ejector 306 on the side of the discharge hole 310, so that the ejector 306 sucks the screw hole 201. Clean the inside. When attempting to stop the ejection of compressed air, loosen the operation button 309 to block the intake passage 307 and stop the inflow of compressed air into the air chamber 305.

On the other hand, by using this air suction device 301, as shown in FIG.
When the inside of the screw hole 101 as shown in FIG. 3 is used as an air blower, the discharge pressure is lowered, so that a sufficient cleaning function cannot be achieved and an additional air blower is required.

[0007]

As described above, the air suction device 301 is used as a blower in the screw hole 101 having the hole bottom 102, and the screw hole 201 communicating with the flow passage 202 is used as a suction device for both screws. Even if an attempt is made to clean the holes, it is functionally impossible to use both the suction device and the blowing device with a normal air suction device.

In addition, the work efficiency cannot be improved because the suction pipe 401 must be attached to the other end side with the screw 402 during suction.

[0009]

In view of the above situation, therefore, the present invention not only cleans both screw holes having a hole bottom and screw holes penetrating therethrough, but also ordinary suction and blow operations. In order to efficiently perform the above, a hanging portion is provided in the air passage portion, and the air passage is passed through the air passage portion,
An ejector was provided in the middle of the air passage, an air supply passage penetrating the grip portion was communicated with the ejector, and a switching valve was provided on the ejector hole side of the ejector in the air passage to provide an air suction / air blow device.

[0010]

[Function] When the switching valve on the discharge hole side of the ejector of the air passage is switched to the closed state, the compressed air from the intake passage is ejected from the opening of the air passage on the intake hole side of the ejector by the operation of the operation button to blow the air. On the other hand, when the switching valve is switched to the open state, the compressed air from the intake passage passes through the ejector by the operation of the operation button, so that a suction action is generated, and the outside of the opening of the air passage on the intake hole side of the ejector. Air is inhaled. In this way, by closing or opening the switching valve, compressed air from the intake passage can be ejected from the opening of the air passage on the ejector suction hole side, or air can be sucked from the outside.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail based on specific embodiments shown in the accompanying drawings. As shown in FIG. 1, the air suction / air blow combination device 1 has an air flow portion 2
And a grip portion 3 that is hung from the air flow portion 2 and is gripped by an operator.

An air passage 4 is penetrated through the air passage portion 2, an air chamber 5 is provided in the middle of the air passage 4, an ejector 6 is arranged therein, and an intake passage 7 penetrating the grip portion 3 is provided with an air chamber 5. And an operation button 9 is provided in the middle of the intake passage 7. A switching valve 11 is provided on the discharge hole 10 side of the ejector 6 in the air passage 4.
Can be opened and closed freely. On the other hand, the opening end face of the air passage 4 on the suction hole 12 side of the ejector 6 of the air flow portion 2 is tapered.
Form to 13.

When cleaning the screw hole 101 having the hole bottom 102 as shown in FIG. 4 by the air suction / air blower device 1, the operator puts the switching valve 11 in the closed state in which the air passage 4 is closed. When switching is performed and the grip portion 3 is gripped and the operation button 9 is pressed, compressed air flows from the intake passage 7 into the air chamber 5 and the ejector 6 and flows into the discharge hole 10 side, but the air passage 4 has the switching valve 11 The compressed air is blown out from the opening 14 of the air passage 4 on the intake hole 12 side of the ejector 6 and blows off the sealing tape or the like.

On the other hand, when cleaning the screw hole 201 communicating with the flow passage 202 as shown in FIG.
Since it cannot be dropped onto 202, it is necessary to discharge the sealing tape etc. to the outside by air suction. At this time, as shown in FIG. 2, the switching valve 11 of the air suction / air blow combination device 1 is opened so as to pass the air passage 4,
When the operator grips the grip portion 3 and presses the operation button 9,
Compressed air flows from the intake passage 7 into the air chamber 5 and the ejector 6, passes through the end face of the ejector 6 on the discharge hole 10 side, and then the switching valve
Compressed air is ejected from the other opening 15 via 11 and the air is sucked from the opening 14 and the sealing tape or the like is discharged to the outside.

Further, the taper surface 13 on the opening 14 side is provided with a screw hole 20.
Since it is inserted into 1, the tapered surface 13 comes into contact with the opening of the screw hole 201, and the air is sucked with the screw hole 201 in a sealed state, so that the suction efficiency is improved. In this air suction / air blow combination device 1, compressed air can be jetted from the opening 14 or air can be sucked in by simply switching the switching valve 11, and the air suction device and the air blow device can be replaced as in the conventional case. Work efficiency is improved without the need to install an intake pipe.

Also, as an air suction / air blow dual-purpose device, the above description has been made of an example in which both ends of the air circulation portion are integrally formed. However, as shown in FIG. Alternatively, the valve pipe 23 may be screwed to the other end side.

[0017]

As described above, according to the present invention, the air passage portion is provided with a hanging portion, the air passage is penetrated through the air passage portion, and the ejector is provided in the middle of the air passage. An air suction / communication valve that connects the penetrating air supply passage to the ejector and has a switching valve on the discharge hole side of the ejector in the air passage.
Because it is an air blower, it is not necessary to change the direction of the end face or install an intake pipe to clean both the screw holes with the hole bottom and the screw holes that penetrate it. , The required work of blowing can be efficiently performed by the same device.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing a state in which a switching valve is closed and used as an air blower in an embodiment of an air suction / air blower according to the present invention.

FIG. 2 is a vertical cross-sectional view showing a state in which the switching valve of the air suction / air blower according to the present invention is opened to be used as an air suction device.

FIG. 3 is a vertical cross-sectional view showing a state in which the switching valve is opened and used as an air suction device in another embodiment of the present invention.

FIG. 4 is a vertical cross-sectional view of a screw hole that has a hole bottom and does not penetrate.

FIG. 5 is a vertical cross-sectional view of a screw hole having no hole bottom and communicating with a flow path.

FIG. 6 is a vertical cross-sectional view of an air suction state of a conventional air suction device.

FIG. 7 is a vertical cross-sectional view showing a state in which a suction pipe is attached to a conventional air suction device.

[Explanation of symbols]

 2 ... Air flow portion 3 ... Gripping portion 4 ... Air passage 6 ... Ejector 7 ... Intake passage 10 ... Large ejector hole 11 ... Switching valve 12 ... Small ejector hole 13 ... Tapered surface 14 ... Opening 15 ... Opening

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigeki Mukai 2-9-18 Honjo Higashi, Kita-ku, Osaka Kanden Kogyo Co., Ltd. (72) Inventor Mitsuyasu Matsuo 2-18-1 Shinmachi, Nishi-ku, Osaka Shinei Shoten Co., Ltd.

Claims (1)

[Claims] 1. An air passage part is provided with a hanging portion, a air passage is penetrated through the air passage portion, an ejector is provided in the middle of the air passage, and an air supply passage passing through the grip portion is communicated with the ejector. The air suction / air blower is equipped with a switching valve on the ejector hole side of the ejector in the air passage.