JP2011041931A - Washing gun and washing method using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a new washing technique which can jet compressed gas mixed with a washing solution to an object to be washed and at the same time can suction and recover mist for preventing mist from diffusion in the ambient environments, and can removes stains and powder dust by switching the washing solution and can complete all of the steps of washing by switching the washing solution to remove stains and dust and finally jetting only compressed air at one blow. <P>SOLUTION: The washing gun 1 is obtained by installing a washing nozzle 8 in the tip end center of a suction cylinder 7 united with the tip end of a grip 2, concentrically to the suction cylinder 7, in a manner of setting the washing nozzle 8 in the tip end direction; installing a jetting switch 6 at a proper position of a main compressed gas channel 3 extended from the base end of the grip 2 to the washing nozzle 8; opening the terminal end of a negative pressure inducing channel 33 which is branched from the main compressed gas channel 3 in a proper inner wall position of the suction cylinder 7 toward the terminal end of the suction cylinder 7; connecting a liquid channel switch 5 to the respective inner ends of one liquid channel 41 and another liquid channel 42 in the grip 2; and connecting a discharge channel 51 of the liquid channel switch 5 to a gas-liquid mixer 35 installed at a proper position of the main compressed gas channel 3. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

    The present invention relates to a mechanical device, a product, and other cleaning technologies, and particularly includes a field of manufacturing a cleaning device that can be cleaned by spraying a gas or a mixed fluid of gas and liquid onto an object. Materials and equipment required for transportation, storage, assembly and installation, and materials required for materials, machinery and parts, such as wood, stone, various fibers, plastic, various Fields that provide metal materials, etc., electronic components incorporated in them, fields of control-related equipment that integrates them, fields of various measuring instruments, fields of power equipment that moves the equipment and instruments, power and energy sources that serve as energy It is a field generally called industrial machinery, such as the field of electricity and oil, and furthermore, testing and researching those facilities and instruments, Fields related to display, sales, import / export, general use, results of their use, facilities for making them, fields related to the collection and transportation of garbage generated by the operation of equipment, etc. There are no technical fields that are not related to the new fields that cannot be envisaged at this time, in addition to the recycling fields that are efficiently reused.

(Points of interest)
In order to remove dirt, dust, cutting waste, oil, etc. adhering to various machine tools, parts processed by them, products, etc., pipes for compressed air and compressors or cylinders arranged in the factory Connected air guns are generally widely used, and if you spray the compressed air with the gun nozzle pointing at the object to be cleaned, it is more efficient than wiping with waste, and it is more complicated and precise without damaging the product. Even with parts, there is an advantage that the cleaning workability can be improved, and it has been widely used so far, but dust and oil removed by jetting compressed air are scattered in the air, dirt and cutting It has the disadvantage of deteriorating the work environment by splashing and adhering to the surroundings, and it can also remove dirt that cannot be removed sufficiently by only blowing compressed air. In addition to air guns, prepare cleaning devices such as ultrasonic cleaners and cleaning chemicals tanks, dehydration and drying devices, soak them in these cleaning tanks for a predetermined time, rinse them, dehydrate, It has to be dried and requires a plurality of cleaning devices and a lot of man-hours.

(Conventional technology)
Considering this situation, for example, as represented by the one proposed in Patent Document 1 (1) below, a cleaning brush is provided at the tip of a rotating shaft that can be driven to rotate by a motor, and the inside of the rotating shaft. Through which the cleaning liquid can be supplied to the tip brush portion, and the screw hole can be effectively cleaned, or the air suction port is opened at the tip of the cleaner head as seen in the patent document 1 (2), An ultrasonic air jet nozzle is provided at the center of the air suction port, the ultrasonic air jet nozzle has a switch mechanism that can be switched between an air feed state and a stop state, and a flexible vacuum tube at the base end of the cleaner head In addition, a flexible air supply pipe is connected so that the air is always sucked from the air suction port, or, for example, as in Patent Document 1 (3), gas, liquid or granular material is transferred. In the middle of the piping to be installed, a transfer pipe body having a handle is provided, and the injection direction of the gas supplied through the handle is changed by changing the internal parts of the transfer pipe body or changing the direction of the built-in parts. It is possible to change the handle and to provide a gas flow control valve on the handle.

However, among the above prior arts, the one that supplies the cleaning liquid to the rotating brush, such as that shown in the former Patent Document 1 (1), has no means to wash out the cleaning liquid after the brush cleaning, and the parts in the next process It is necessary to immerse the object to be cleaned in a cleaning tank and perform ultrasonic cleaning, then dry and remove the immersion liquid, or perform steam cleaning, etc. After cleaning, various processes and various types used for each step A cleaning device is indispensable. Also, as in the following Patent Document 1 (2), ultrasonic air is jetted from the central nozzle and air is sucked from the surrounding air inlet. Is effective for removing fine dust in the dry state, but cannot clean and remove moisture, oil, and cutting waste, and is particularly fatal because it can hardly remove moisture and oil. With various disadvantages Yes, and the last transfer technology for gas and powder using the pipe line represented by Patent Document 1 (3) can apply a part of its structure to mix cleaning liquid with compressed air However, there is no technique for sucking and collecting the injected gas-liquid mixture, and there is a concern that the mist of the cleaning liquid may scatter in the air and deteriorate the working environment.
(1) JP 2000-202379 (2) JP 10-43699 (3) JP 6-206625

(Awareness of problems)
As described above, all of the various cleaning devices that have been proposed so far require finishing ultrasonic cleaning or steam cleaning after the cleaning operation, or only removing dry fine dust, In addition, there is a disadvantage that the mist of the cleaning solution diffuses and the working environment is deteriorated, and the compressed air such as Super Gun (trade name) manufactured by Martec Co., Ltd., which is already widely available on the market The ones that enable injection and suction do not have the function of injecting cleaning liquid. Like engine cleaners (trade name) manufactured by Kurita Manufacturing Co., Ltd., those that can be injected by mixing various cleaning liquids with compressed air. , Because the sprayed cleaning liquid and dust could not be sucked and collected, the cleaning target was sprayed with compressed air mixed with cleaning liquid and sprayed. It is possible to instantly collect strikes, dirt, dust, moisture, oil, cutting scraps, etc., and also to switch between multiple cleaning liquids so that cleaning components can be rinsed and removed. However, there is still no technology that can sufficiently remove such components.

(Object of invention)
Therefore, the present invention can be cleaned by spraying compressed air mixed with a cleaning liquid onto an object to be cleaned with one cleaning device, and can be collected by suction so that mist does not scatter around. And the development of a new cleaning technology that can completely complete the entire cleaning process by ejecting only compressed air and removing dust and dust. As a result of starting development and research, and repeating trial and error over many years and many trial manufactures and experiments, this time, finally, to realize a cleaning gun with a new structure and a new cleaning method using it. In the following, the configuration will be described in detail together with an embodiment representative of the present invention shown in the drawings.

(Structure of the invention)
As will be clearly understood from the embodiments representing the present invention shown in the drawings, the cleaning gun of the present invention basically comprises the following configuration.
That is, a gas or gas-liquid mixture is jetted in a concentric arrangement with the suction cylinder at the center of the tip of the suction cylinder, which is tilted and integrated into an appropriate angle and posture at the tip of the grip, and the tip of the suction cylinder is directed toward the lateral direction. A cleaning nozzle is provided, and an injection switch is arranged at an appropriate position in the middle of the pipe line from the base end of the grip to the cleaning nozzle so as to expose the operation input unit on the outer wall that can be operated by a finger holding the grip. And the terminal of the negative pressure induction circuit branched from the appropriate position between the injection switch of the main compressed air circuit and the cleaning nozzle is opposite to the cleaning nozzle at the appropriate position on the inner wall of the suction cylinder. At least one liquid circuit and at least one that is inclined in the wrinkle direction and has the suction cylinder end open toward the wrinkle and extended into the grip from the proximal end of the grip to the vicinity of the injection switch Connected to each inner end of the separate liquid circuit is a liquid switching device for switching operation for arbitrarily selecting one liquid and another liquid from the outside, and the discharge path from the liquid switching device is connected to the main compressed air. A cleaning gun having a configuration in which a gas-liquid mixer connected to an appropriate position between a negative pressure induction circuit branch point of a circuit and a cleaning nozzle is connected.

    When the cleaning gun having this basic configuration is shown as a more specific one, the tip of the grip is inclined at an appropriate angle and posture, and is arranged concentrically with the suction cylinder at the center of the tip of the suction cylinder. In this manner, a cleaning nozzle capable of injecting a gas or a gas-liquid mixture is replaceably attached to the cleaning nozzle from the base end of the grip through the desorption mechanism. A main compressed air circuit having an injection switch arranged so as to expose an operation input portion on an outer wall that can be operated by a finger holding the grip at an appropriate position in the middle of a crossing pipeline, and an injection switch of the main compressed air circuit The end of the negative pressure induction circuit branched from the appropriate position between the cleaning nozzle and the cleaning nozzle is inclined in the direction opposite to the cleaning nozzle at the appropriate position on the inner wall of the suction cylinder, and the end of the suction cylinder opens toward the side. On to do Switching operation for arbitrarily selecting one liquid and another liquid from the outside at each inner end of the one-liquid circuit and at least one separate liquid circuit that are extended in the same grip from the base end of the grip to the vicinity of the injection switch A liquid-liquid mixing device is connected to the liquid passage switching device, and a discharge passage from the liquid passage switching device is arranged at an appropriate position between the negative pressure induction circuit branch point of the main compressed gas circuit and the washing nozzle. The cleaning gun is configured to be connected to the vessel.

(Related invention)
In relation to the above-described cleaning gun, the present invention includes a cleaning method using the cleaning gun.
That is, the one-liquid circuit was connected to the gas-liquid mixer by the operation of the liquid passage switch, the tip of the suction cylinder was opposed to and approached the object to be cleaned, the injection switch was operated, and the cleaning liquid was mixed from the cleaning nozzle. After the cleaning process of blowing compressed air and sucking and removing cleaning liquid mist, dirt, dust etc. from the tip of the suction cylinder, connect a separate liquid circuit to the gas-liquid mixer by operating the liquid path switch, and from the cleaning nozzle Compressed air mixed with pure water is blown, and a cleaning liquid rinsing process is performed to suck and remove pure water mist, dirt, dust, etc. from the tip of the suction cylinder, and to the gas-liquid mixer by operating the liquid path switch The cleaning gun which forms the basis of the present invention is such that the supply of the liquid is stopped, only the compressed air is blown from the cleaning nozzle, and the tip of the suction cylinder performs a drying process in which air and moisture are removed by suction. Use It is a cleaning method.

    As described above, according to the cleaning gun of the present invention, unlike the conventional one, the suction cylinder is integrated so as to be inclined at an appropriate angle and posture with respect to the grip from the inherent characteristic configuration as described above. A flexible pipe or piping that can be connected to a cleaning device, a filtration device, or the like can be connected to the rear end of the suction cylinder, and a cleaning nozzle is provided at the tip of the suction cylinder toward the tip of the suction cylinder. The end of the negative pressure induction circuit branched at an appropriate position in the middle of the main compressed air circuit extending from the base end of the grip to the cleaning nozzle, at the appropriate position on the inner wall of the suction cylinder, and the rear end of the suction cylinder inclined and opened in the opposite direction. When the injection switch is operated with the operation input section exposed on the outer wall of the grip, the object to be cleaned is cleaned using the gas or gas-liquid mixture injected from the cleaning nozzle, and the front end of the suction cylinder is understood from the rear end. To wash Along with the gas and mist around the nozzle, dirt components such as dust, oil, and moisture that have separated from the object to be cleaned are sucked in and supplied to and purified by a cleaning device or filtration device to prevent air pollution in the work environment. The excellent feature of maintaining a clean environment can be obtained.

    In addition, in addition to the main compressed air circuit and the negative pressure induction circuit, the grip is switched by a one-liquid circuit and at least one separate liquid circuit, their liquid path switcher, and the same liquid path switcher. It has a gas-liquid mixer that allows the selected liquid to join and vaporize at a suitable place in the main compressed gas circuit, and operates the liquid path switch to make one liquid circuit or any one separate liquid circuit. It is possible to select and connect to the gas-liquid mixer. Furthermore, either one liquid circuit or any one separate liquid circuit is not connected to the gas-liquid mixer and can be closed. With this cleaning gun, it is possible to freely select and use one of compressed gas injection, one liquid gas-liquid mixture injection, or another liquid gas-liquid mixture injection, Conventionally, the object to be cleaned after being cleaned with a cleaning gun is immersed and cleaned in an ultrasonic cleaning device. Furthermore, operations that require complicated processes such as drying can be processed from washing to rinsing and drying all at once with a single washing gun, greatly improving the efficiency of the washing operation. It has an excellent effect of being able to improve.

    In addition, the replacement of the cleaning nozzle with a part of the detaching mechanism that can be replaced not only improves the maintenance performance of cleaning and replacement of the cleaning nozzle, but is also common to the base end of the cleaning nozzle. Prepare at least two parts equipped with a part of the desorption mechanism, and each cleaning nozzle has a nozzle tip with a predetermined range of outer diameters set to have a large and small relationship with each other. The cleaning nozzle can be appropriately replaced with a cleaning nozzle of the optimal size and shape according to the shape and dimensions of the target object to improve cleaning performance and increase the efficiency of the cleaning work. And a plurality of peripheral wall injection holes opened so as to be balanced in the circumferential direction of the appropriate place in the middle of the peripheral wall, the internal pressure of the cleaning nozzle is reduced through each peripheral wall injection hole, Preventing the mixer backflow In addition, the tip of the cleaning nozzle can be prevented from becoming high pressure near the end wall injection hole due to the small diameter of the wrinkle, and the tip of the cleaning nozzle protrudes from the tip of the suction cylinder when mounted on the suction cylinder. The cleaning nozzle fixed so as to be arranged increases the effect of cleaning and drying such as screw holes formed on the object to be cleaned, and the work efficiency, and when mounted on the suction cylinder, When the tip is fixed so as to be arranged at the same position as the tip of the suction cylinder, the periphery of the tip of the suction cylinder protects the tip of the cleaning nozzle and is effective for cleaning and drying the flat portion of the object to be cleaned. Also, if the tip of the cleaning nozzle is fixed so that it is retracted far behind the tip of the suction cylinder, the hexagonal hole or cross hole on the bolt head protruding from the surface of the object to be cleaned is extremely effective. Cleaning Will be able to dry appropriately their shape, exchange different cleaning nozzle dimensions, if to be worn, it comes to have the advantage of being able to increase the efficiency of these cleaning operations more.

    Then, according to the cleaning method using the cleaning gun of the present invention, a one-liquid circuit capable of supplying the cleaning liquid is connected to the gas-liquid mixer by operating the liquid path switch, and the target to be cleaned is operated by operating the injection switch. The cleaning liquid mist is sprayed onto the object to perform cleaning, and a cleaning process is performed to suck and remove the cleaning liquid mist, dirt, dust, etc. from the tip of the suction cylinder to ensure that the cleaning liquid mist does not diffuse around. Another liquid that can maintain the work environment hygienically and improve the efficiency of the cleaning work, and can supply pure water to the gas-liquid mixer by operating the liquid path switch in the subsequent cleaning liquid rinsing process. Connect the circuit, blow compressed air mixed with pure water from the cleaning nozzle onto the object to be cleaned, and remove the pure water mist, dirt, dust, etc. from the tip of the suction cylinder by suction and remove dirt, dust, etc. containing cleaning liquid components Effectively remove and further In the drying process, the supply of liquid to the gas-liquid mixer is stopped by the operation of the liquid channel switch, and only compressed air is blown from the cleaning nozzle, and the tip of the suction cylinder sucks and removes air and moisture. A conventional ultrasonic cleaning device that can sufficiently dry an object and can process the object to be cleaned, rinsed, and dried at once using only the cleaning gun. Compared with the work performed sequentially using the drying apparatus or the like, the excellent effect that the work efficiency can be enhanced at each stage is exhibited.

In implementing the present invention having the above-described configuration, the best or desirable mode will be described.
The grip ensures reliable and easy gripping and operation of the suction cylinder and the cleaning nozzle, and can incorporate a main compressed air circuit and various liquid circuits connected to the suction cylinder and the cleaning nozzle. It is easy to handle with one hand by integrating the main functions of the switch, the liquid path switch for each liquid circuit, and the gas-liquid mixer that connects the discharge path of the liquid path switch at an appropriate place in the main compressed gas circuit. The shape, dimensions, and easy-to-handle weight and sufficient pressure resistance must be set so that it can be securely gripped with one hand. The mounting position and angle of the suction cylinder and the cleaning nozzle are described later. As shown in the embodiment, it should be a pistol type arrangement so that the end position of the suction cylinder is disengaged from the grip, and each operation part such as a liquid path switch and an injection switch is It can be said that it is desirable to be readily operable arrangement relationship with one hand gripping the lip.

    The suction cylinder surrounds the periphery of the cleaning nozzle in a cylindrical shape, and by the ejector effect generated by the compressed air injected from the negative pressure induction circuit, the suction nozzle can suck and remove gas, liquid, solid and mixture thereof, etc. The end of the negative pressure induction circuit shall be in a suitable position on the inner wall of the suction cylinder with an inclined posture facing the opposite side of the washing nozzle, and the end of the suction cylinder shall be open toward the side. As shown in the examples to be described later, at the end of the suction cylinder, a gas such as dirt, moisture, oil, powder, dust, cutting waste from the sucked gas or gas-liquid mixture, Either a purification device, a dust collector, a filter device, a gas-liquid separation device, a filter or a recovery device that can separate and recover liquid, semi-solid, solid, etc., are connected directly or Stretched from any one Piping such as a flexible pipe can be made connectable with.

    The cleaning nozzle performs the function of allowing the gas or liquid mixture, which is a mixture of cleaning liquid or other liquid to the compressed air or compressed air, from the central position of the suction cylinder tip to be sprayed with the desired directivity, and is the main compression at the base end It should be connected to the air circuit and should be detachable and replaceable at its base through a detachable mechanism, and as shown in the embodiments described later, a common detachable mechanism at its base end At least two nozzles with a part of each nozzle are prepared, and the nozzles of the respective nozzles are set so that the outer diameters of the nozzles in a predetermined range have a large and small relationship with each other. A part of the attachment / detachment mechanism is provided at the end, and an end wall injection hole that opens to the tip wall and a plurality of peripheral wall injection holes that are open to be balanced in a circumferential direction at an appropriate place in the middle of the peripheral wall are formed. Can be things.

    In addition, the cleaning nozzle is provided with a part of the desorption mechanism at the base end, and when the tip of the suction cylinder is mounted on the other part of the desorption mechanism of the hook, the tip of the cleaning nozzle projects from the tip of the suction cylinder. The tip of the cleaning nozzle is fixed so that the tip of the cleaning nozzle is disposed at the same position as the tip of the suction cylinder, or the tip of the cleaning nozzle is located behind the tip of the suction cylinder. It can be set to any one that is fixed so as to be retracted.

    The detaching mechanism of the cleaning nozzle is provided at either the appropriate position on the inner wall of the suction cylinder, the supporting part extended from the appropriate position on the inner wall of the suction cylinder, or the end of the main compressed air circuit extended into the suction cylinder. The base end is attachable so that it can be attached and detached. The injection force of the gas or gas-liquid mixture supplied through the main compressed air circuit, the suction force generated at the tip of the suction cylinder, and the cleaning The nozzle must be strong enough not to be easily damaged or deformed by light contact with other nozzles. Use a general-purpose tool, or use a cleaning nozzle without using tools. The structure should be detachable, and it is desirable to use a screw type that can ensure airtightness or a coupler (registered trademark) type manufactured by Nitto Koki Co., Ltd.

    The main compressed air circuit is capable of pumping compressed gas from the proximal end of the grip to the proximal end of the cleaning nozzle, and the gas-liquid mixture from the gas-liquid mixer to the proximal end of the cleaning nozzle. It performs the function that enables the stop operation, and the negative pressure induction circuit is branched from an appropriate place in the middle to ensure sufficient airtightness and pressure resistance so that the fluid does not leak unnecessarily. It can be integrated into the thick wall of the grip, such as hard synthetic resin, various composite materials, etc., and it has a built-in metal or equivalent pressure-resistant pipe inside the grip. Is possible.

    The negative pressure induction circuit serves to supply a part of the compressed air supplied to the main compressed air circuit to an appropriate position on the inner wall of the suction cylinder, and functions to enable injection in an inclined direction toward the opposite side of the cleaning nozzle, As shown in the examples to be described later, the downstream side of the injection switch of the main compressed air circuit should be branched from the upstream side of the gas-liquid mixer. It should be branched from the suction cylinder so that the suction cylinder always sucks, or the downstream side of the gas-liquid mixer should be branched from the side so that a part of the gas-liquid mixture is injected into the suction cylinder. Can do.

    The gas-liquid mixer performs the function of allowing the liquid supplied from the discharge path of the liquid path switching device to be mixed in the mist state in the compressed air flowing through the main compressed air circuit. The ejector effect, the venturi effect, The liquid should be automatically supplied and mixed using the negative pressure associated with the flow of compressed air, such as the Bernoulli effect, but a pump is provided to pressurize and inject the liquid into the compressed air. However, as shown in the examples described later, the mixing ratio of the gas and the liquid can be adjusted by the degree of opening and closing of the liquid path switch, but is fixedly set to a predetermined mixing ratio The built-in parts can be attached to and removed from the middle part of the main compressed air circuit, can be exchanged with built-in parts with different mixing ratios, and can be disassembled and cleaned. Suitable to prevent backflow of compressed air Can be made in which a check valve.

    The liquid circuit can be connected by piping so that plural kinds of liquids flow into the liquid path switching device through individual circuits. The one liquid circuit and at least one separate liquid circuit are independent of each other. In order to prevent the fluid flowing inside from leaking out and mixing with each other, each end (outer end) should be opened as a separate conduit at the base end of the grip and the other end (inner end) connected to the liquid path switch. As shown in the embodiments to be described later, as with the main compressed air circuit, it can be a circuit integrally formed inside the grip, and it is made of a piping pipe built in the grip. It is possible that the gas-liquid mixer is provided with a check valve so that compressed air does not flow.

    The one-liquid circuit of the liquid circuit allows chemical liquids and other liquids different from other liquid circuits to circulate, such as flexible pipes that can be drawn from one-liquid tanks, water tanks, etc. For example, as shown in the examples described later, an abrasive capable of supplying a cleaning liquid and ensuring fluidity equivalent to that of a liquid. It is also possible to provide a circuit for supplying chemicals and other powders.

    One separate liquid circuit of the liquid circuit is capable of circulating a chemical solution and other liquids different from the single liquid circuit and the other separate liquid circuits, and the corresponding separate liquid tank, water tank, etc. It must be connectable with a flexible pipe that is drawn so that it can be sucked from, for example, as shown in the examples described later, it can be supplied with pure water, and is equivalent to a liquid. It is also possible to provide a circuit that supplies an abrasive, a chemical agent, and other powders that can ensure the fluidity of the liquid.

    The liquid path switching device is capable of selectively connecting one of the one liquid circuit and at least one separate liquid circuit to the gas-liquid mixer and adjusting the flow rate thereof. Must be arranged so that it can be easily operated from the outside at an appropriate position of the grip, and each liquid circuit is provided on the cylindrical inner peripheral wall as will be described later. Rotating by drilling connection circuits that can individually connect each liquid circuit and discharge path at predetermined angles around the circumference in cylindrical holes that are open so that each of the terminal and the discharge path is scattered around the circumference A spool is mounted and rotated around the rotary spool axis to selectively connect individual liquid circuit terminals and discharge paths, or all liquid circuits can be shut off. You can do things like Outside, may be, eg, of providing the check valve outside, to the discharge path can be made in which a closing valve or an electromagnetic valve between the discharge passage and the individual liquid circuits terminal.

    The injection switch allows the compressed air to flow through the main compressed air circuit by temporarily releasing the cut-off state of the compressed air at an appropriate position in the middle of the main compressed air circuit by an external operation. When released, the function of returning the compressed air flow in the main compressed air circuit to the shut-off state is achieved again, and any operation input unit such as buttons, levers, triggers, various sensors, etc. It must consist of an open / close valve or electromagnetic valve that can be opened and closed in response to an operation input to the input unit.In consideration of its operability, as shown in the examples described later, the grip is placed at an appropriate position. It can be said that it is desirable to use the provided trigger mold.

Compressed air is air, nitrogen gas, oxygen, carbon dioxide gas, helium, hydrogen gas, and other gases pressurized above atmospheric pressure, in other words, various active gases or various inert gases, depending on the purpose of use. Various types of gases can be used, and each liquid supplied to one liquid circuit and at least one separate liquid circuit is composed of various cleaning agents, cleaning solutions in which cleaning agents are mixed in an appropriate solvent, and abrasives. Liquids with various functions such as mixed polishing liquid, cleaning polishing liquid mixed with cleaning agent and polishing liquid, disinfecting liquid mixed with disinfectant, peeling liquid mixed with release agent, lubricating oil mixed with oil, cutting oil Distilled water, pure water, various alcohols, various liquids such as rinsing liquids such as various solvents, more specifically, for example, hydrocarbon-based cleaning agents, alcohol-based cleaning agents, bromine-based cleaning agents, fluorine-based cleaning agents, organic Solvent-based cleaning agent, petroleum-soluble It can also be called a system cleaner, an alkaline cleaner, an acidic cleaner, a neutral cleaner, a chlorine cleaner, and other cleaners. It can be said that it can be replaced by the body.
In the following, the structure of the present invention will be described in detail together with an embodiment representative of the present invention shown in the drawings.

    1 is a side view of the cross-sectionalized cleaning gun 1 in FIG. 1, a bottom view of the cleaning gun 1 in FIG. 2, a plan view of the liquid path switch 5 in FIG. 3, and a plan view of the switched liquid path switch 5 in FIG. 5 is a front view of the sectioned liquid passage changer 5, a plan view of the disassembled liquid passage changer 5 operation section 5 </ b> Y in FIG. 6, a sectional view of the injection switch 6 in the closed state in FIG. 7, and an opening in FIG. 8. 9 is a cross-sectional view of the injection switch 6 in a state, a cross-sectional view of the large-diameter cleaning nozzle 8 in FIG. 9, a cross-sectional view of the small-diameter cleaning nozzle 8 in FIG. 10, and a cross-sectional view of the cleaning nozzle 8 in which an opening is formed in the peripheral wall in FIG. 13 is a cross-sectional view of the cleaning nozzle 8 having a plurality of openings formed at the tip thereof, a cross-sectional view of the cleaning nozzle 8 having a plurality of openings formed at the peripheral wall and the tip in FIG. Sectional drawing, sectional drawing of the suction cylinder 7 in which the front-end | tip of the washing nozzle 8 of FIG. FIG. 17 is a sectional view of the suction cylinder 7 arranged at the back of the cylinder, a sectional view of the protruding cleaning nozzle 8 in FIG. 17 in use, a sectional view of the cleaning nozzle 8 in use in which the tip of FIG. The example shown in the sectional view of the state of use of the cleaning nozzle 8 arranged at the back of the cylinder in FIG. 19 is concentric with the suction cylinder 7 at the center of the tip of the suction cylinder 7 integrated with the tip of the grip 2. In this configuration, a cleaning nozzle 8 is provided with its tip directed in the lateral direction, and an injection switch 6 is disposed at an appropriate position in the main compressed air circuit 3 reaching the cleaning nozzle 8 from the proximal end of the grip 2. The end of the negative pressure induction circuit 33 (shown in FIG. 17) branched from an appropriate position of the circuit 3 opens at the appropriate position on the inner wall of the suction cylinder 7 toward the side of the suction cylinder 7, and one liquid in the grip 2 is opened. A liquid path switch 5 is connected to each inner end of the circuit 41 and the separate liquid circuit 42; and A typical embodiment of the cleaning gun according to the present invention, in which the discharge path 51 of the liquid path switching unit 5 is connected to a gas-liquid mixer 35 disposed at an appropriate position of the main compressed gas circuit 3 is shown. It is.

As can be clearly seen from these drawings, the cleaning gun 1 of the present invention has a bar shape set in a shape and size that can be easily gripped by the palm, and has a groove 20 for hooking a finger on the outer peripheral wall corresponding to the little finger from the middle finger. The suction cylinder 7 is connected to and integrated with the tip of the grip 2 provided at an inclination angle α of 44 °, and the suction cylinder 7 has a cylindrical shape with an appropriate length, A connecting portion 70 is formed so that a distal end of a flexible pipe extended from a purification device (not shown) can be detachably connected. The distal end is tapered so that the inner diameter of the flexible pipe is widened with the distal end facing the wing. The suction port fitting 71 is replaceably mounted, and a connection seat 72 to the grip 2 is integrally formed on the outer peripheral wall at an appropriate position in the middle. The connection seat 72 is detachable so as to penetrate the connection seat 72. Installed, forming the leading edge of the main compressed air circuit 3 The tip of the nozzle pipe 31 to be extended extends to the center in the suction cylinder 7, and the tip of the suction pipe 7 is curved toward the hook to attach the cleaning nozzle 8 to and from the tip. Assume that a female screw 90 that is a part of the detaching mechanism 9 is engraved, and the detaching mechanism 9 female screw 90 has a narrow tip with a narrowed tip, for example, as shown in FIGS. A male screw 91 which is the other part of the detachable mechanism 9 carved at the base end of the cleaning nozzle 8 which is a needle pipe can be screwed and attached.
The female screw 90 and the male screw 91 of the detachable mechanism 9 can be replaced with other joint mechanisms or connecting parts made of a combination of a nipple and a connector that can be easily attached and detached. An annular seal S is attached to the proximal end between the connection seat 72 and the opening portion of the main compressed air circuit 3.

The cleaning nozzle 8 connected to the tip of the main compressed air circuit 3 nozzle pipe 31 via the desorption mechanism 9 and arranged concentrically at the center of the tip of the suction cylinder 7 has a suction tip as shown in FIG. The tube 7 is set so as to protrude from the leading edge of the predetermined dimension A, the tip is sized so as to coincide with the leading edge of the suction tube 7, as shown in FIG. 15, and FIG. As shown in the figure, the tip of the suction tube 7 may be set so that the back of the suction tube 7 is set back by a predetermined dimension B.
As shown in FIGS. 1 and 14 to 16, the nozzle pipe 31 of the main compressed air circuit 3 is fixed by a set screw 32, and is removed when the suction fitting 71 is removed and the set screw 32 is loosened. It can be decomposed into a shape.

    As shown in FIG. 1, the proximal end wall surface of the grip 2 has a connector portion 30 for the main compressed air circuit 3 and two liquid circuits 4 in order from the front side to the rear side where the groove 20 for fingering is provided. The connector portion 40, 40 is opened, and the main compressed air circuit 3 extends from the connector portion 30 to the inside of the suction cylinder 7 inside the thickness of the grip 2, and the front side of the grip 2 of the outer side of the grip 2 The operation input unit 60 including the trigger 61 of the injection switch 6 and the injection valve 62 is provided at a position corresponding to the index finger on the wall. As shown in FIGS. 1, 7, and 8, the injection valve 62 is provided. Are installed in the valve hole 63 that is formed in a crossing manner in the middle of the main compressed air circuit 3 in an appropriate position, and a coil spring 64, a valve rod 65, and a valve guide 66 are mounted, and annular seals S, Wear S, ... When the trigger 61 is pulled, the valve rod 65 is inserted against the coil spring 64 to open the valve as shown in FIG. 8, and when the trigger 61 is released, as shown in FIG. The spring force of the spring 64 automatically projects the valve rod 65 to close the valve.

    As shown in FIGS. 1 and 17, a branch point 34 is provided at an appropriate position downstream of the injection switch 6 of the main compressed air circuit 3, and the inner wall of the suction cylinder 7 is connected from the branch point 34 through the connection seat 72. A negative pressure induction circuit 33 is formed so that the end of the suction cylinder 7 is opened toward the center of the mouth in an inclined posture facing the opposite side of the cleaning nozzle 8 from the cleaning nozzle 8, and in FIG. As shown in the figure, at a proper position downstream of the branch point 34 of the main compressed air circuit 3 and upstream of the nozzle pipe 31, the inner diameter is reduced to a venturi tube, and the discharge path of the liquid path switching device 5. The gas-liquid mixer 35 formed by connecting 51 is incorporated.

    As shown in FIGS. 1 and 2, the one-liquid circuit 41 and the separate liquid circuit 42 correspond to the gas-liquid mixer 35 inside the grip 2 from the connector portions 40 and 40 on the base wall surface of the grip 2. As shown in FIG. 5, the inner ends of the same liquid circuit 41 and the separate liquid circuit 42 are drilled so that the inner ends of the liquid path switching device 5 are opened to the rear side near the front end of the grip 2 as shown in FIG. It is assumed that the cylinder cylinder 50 is connected to the cylinder cylinder 50 with an appropriate angle shifted in the direction around the inner peripheral wall, and a discharge passage 51 drilled at an appropriate position on the bottom surface of the cylinder 50 is connected to the gas-liquid mixer 3 (shown in FIG. 1). A circular washer-like annular recess portion larger than the inner diameter of the cylinder 50 is formed on the periphery of the opening end of the cylinder 50, and an internal thread is engraved on the inner peripheral wall of the annular recess portion, Rotation mounted in cylinder 50 Certain cyclic suppressed fitting 21 of the pool 52 as was screwed.

    As shown in FIG. 3 to FIG. 5, when the rotation spool 52 of the liquid path switching unit 5 is mounted on the cylinder 50 by forming a rectangular block-shaped fitting head 53 at the center of one end of the columnar shape. Further, in the wall thickness of the rotating spool 52 from the peripheral wall facing the inner end of the one-liquid circuit 41 at a predetermined angular position around the axis to the bottom wall facing the discharge passage 51 at the same angular position, The elbow-shaped one-liquid conversion circuit 54 is formed, and at a position moved from the one-liquid conversion circuit 54 by a predetermined angle around the center axis, from the peripheral wall facing the inner end of the separate liquid circuit 42, An elbow-like separate liquid conversion circuit 55 is formed in the wall thickness of the same rotating spool 52 that reaches the bottom wall facing the discharge passage 51 at the same angular position. On the outer peripheral wall of the rotating spool 52 sandwiching the opening of the conversion circuit 55 for use, The various locations, Yes in each annular groove is engraved, is an annular seal S in their respective annular grooves, S, as obtained by mounting the S in the fitting shape.

    As shown in FIGS. 1 to 6, an annular retainer 21 that is screwed into and coupled to an annular recess formed on the periphery of the opening end of the cylinder 50 cannot remove the rotating spool 52 in the cylinder 50. A rectangular shape of the fitting head 53 that is held so as to be rotatable about an axis, penetrates through a through-hole 22 drilled in the center of the annular holding member 21 and protrudes freely on the outer side. As shown in FIG. 5 and FIG. 6, the block-shaped protruding end is formed in a disc shape and has a rectangular recess at the center of the joint surface wall. The operation disk 56 having a counterbore hole penetrating the notch is fitted with the rectangular recess, and the fixing screw 57 is screwed and integrated from the counterbore to the projecting end face of the head 53 to be fitted. The operation lever 58 protrudes from the diameter direction of the operation disk 56 to the appropriate position on the outer peripheral wall. There as was screwed to.

    As shown in FIG. 9, the cleaning nozzle 8 has a male thread 91 of a detaching mechanism 9 formed at the base end thereof, and has a cylindrical outer peripheral wall having a constant outer diameter D over its entire length. It is possible to form an injection port 80 penetrating in the axial direction in the center of the tip, and as shown in FIG. 10, the tip of the cleaning nozzle 8 has an outer diameter d within a predetermined range. It is possible to reduce the diameter of the base end smaller than the outer diameter of the flange (for example, a diameter of 1.0 mm or less), and to form a small diameter injection port 80 at the center of the spherical tip. As shown in FIG. 11, the pressure reducing hole 81 that penetrates in the diameter direction with an interval of 180 ° around the circumference in the large diameter range of the proximal end where the diameter-reduced distal end of the cleaning nozzle 8 is in the vicinity of the lateral direction. , 81 perforated or as shown in FIG. 12, the tip of the cleaning nozzle 8 is a pencil cone. The outer end of the portion is cut into a flat shape, and an injection port 80 penetrating in the axial direction is opened in the front end surface wall, and the conical surface wall is formed at predetermined intervals in the circumferential direction of the conical surface wall. A plurality of inclined injection ports 82, 82,... Penetrating perpendicularly can be formed, and as shown in FIG. 13, the cleaning nozzle 8 shown in FIG. A plurality of lateral injection ports 83, 83,... Can be drilled so that the base end is uniformly distributed at a certain interval along the cylindrical peripheral wall surface portion.

(Operation of Example 1)
As shown in FIGS. 1 and 2, the cleaning gun 1 of the present invention constructed as described above is compressed in the main compressed air circuit 3 in each of the connector portions 30, 40, 40 at the proximal end of the grip 2. A flexible pipe (not shown) that can supply air C, ABZOL (Absol: registered trademark) manufactured by Albemarle, for example, and pure water to the separate liquid circuit 42 is provided in the one-liquid circuit 41, for example. In addition, it is connected via a quick joint (not shown) with an individual speed controller, and the tip of a flexible pipe extended from a purification device (not shown) is connected to the connecting portion 70 at the rear end of the suction cylinder 7, and the grip 2 and pulling the operation input portion 60 trigger 61 of the injection switch 6, the valve rod 65 of the injection valve 62 shown in FIG. The main compressed air circuit 3 that has been closed and retracted is opened, and the compressed air C is in a circulating state as indicated by the solid line arrow in FIG. 8, and is indicated by the solid line arrow in FIGS. 14 and 17. As described above, the compressed air C is ejected from the cleaning nozzle 8 injection port 80 and the negative pressure induction circuit 33 end opening, and the compressed air C injected from the cleaning nozzle 8 injection port 80 is sprayed onto the cleaning object P for cleaning. The compressed air C jetted from the end of the negative pressure induction circuit 33 sucks air around the cleaning nozzle 8 and cleaning dirt, dust, oil, etc. into the suction cylinder 7 and at the rear end of the suction cylinder 7. When the trigger 61 is released, the valve rod 65 is moved in the protruding direction by the elastic return force of the coil spring 64 as shown in FIG. Injection valve 2 closes the main compression air circuit 3, the injection of compressed air C from the cleaning nozzle 8 and the negative pressure induced circuit 33 is stopped.

    1, 2, 5, and 6, the operation lever 58 of the liquid path switching unit 5 is rotated, and as shown in FIG. In addition, when the inner end of the one-liquid circuit 41 and the discharge passage 51 connected to the gas-liquid mixer 35 are connected and the injection switch 6 is operated as described above, the compressed air C is discharged as shown in FIG. The ejector effect is produced when passing through the liquid mixer 35, and the ABZOL (Absol: registered trademark) made by Albemarle, which is the one cleaning liquid, is mixed into the compressed air C from the one-liquid circuit 41, and the gas-liquid mixing is performed. 4 and is ejected from the cleaning nozzle 8 injection port 80, and the operation lever 58 of the liquid path switching device 5 is rotated to separate the rotating spool 52 as shown in FIG. The liquid conversion circuit 55 is connected to the inner end of the separate liquid circuit 42 and the gas-liquid mixer 35. When the injection switch 6 is operated after connecting the outlet 51, the gas-liquid mixer 35 produces the same ejector effect as above, and pure water as the separate cleaning liquid is mixed into the compressed air C from the separate liquid circuit 42. The gas-liquid mixture is then ejected from the cleaning nozzle 8 ejection port 80.

    Accordingly, the cleaning method of the present invention can be carried out by employing the cleaning gun 1, and, for example, as shown in FIGS. 41 is connected, the center of the tip of the suction cylinder 7 is opposed to and brought close to the object to be cleaned P, the injection switch 6 is operated, and cleaning liquid such as ABZOL (Absol: registered trademark) manufactured by Albemarle is mixed from the cleaning nozzle 8 After the cleaning process in which the compressed air C is blown and the tip of the suction cylinder 7 is known and the cleaning liquid mist, dirt, dust and the like are suctioned and removed, the separate liquid circuit 42 is supplied to the gas-liquid mixer 35 by operating the liquid path switch 5. , And a cleaning liquid rinsing process for sucking and removing pure water mist, dirt, dust and the like from the tip of the suction cylinder 7 is performed after the compressed air C mixed with pure water is blown from the cleaning nozzle 8 and the liquid passage Switch 5 In the operation, the supply of the liquid to the gas-liquid mixer 35 is stopped, and only the compressed air C is blown from the cleaning nozzle 8, and the drying process of sucking and removing air and moisture from the tip of the suction cylinder 7 is performed. Cleaning, rinsing, and drying can be performed all at once without using any ultrasonic cleaning equipment or drying equipment, and in particular, the rust and alteration of the cleaning object P made of moisture-sensitive materials is ensured. Can be prevented.

    As shown in FIG. 1, the cleaning gun 1 is assembled with the suction cylinder 7 inclined at an angle α of 44 ° with respect to the grip 2. Can be easily directed to the object to be cleaned P (illustrated in FIG. 17), and a flexible pipe (not shown) of the purification device can be connected to the rear end of the suction cylinder 7, and in FIG. The end of the cleaning nozzle 8 shown is set so that the outer diameter d of the nozzle is smaller than the outer diameter D of the cleaning nozzle 8 shown in FIG. 9, so that the screw hole P0 is shown in FIG. As shown in FIG. 11, the base end of the cleaning nozzle 8 in the vicinity of the right side of the diameter of the cleaning nozzle 8 is in the vicinity of the large diameter portion and is 180 around the circumference, as shown in FIG. In the case where the pressure-reducing holes 81, 81 penetrating in the diametrical direction with an interval of ° are perforated, The jet pressure of the compressed air C or gas-liquid mixture jetted from the jet port 80 is reduced, and the one-liquid circuit 41 or the other liquid of the cleaning liquid such as one liquid or another liquid in the gas-liquid mixer 35 shown in FIG. The backflow to the circuit 42 is prevented and excessive high pressure injection from the injection port 80 is prevented, and the decompression holes 81, 81 arranged at symmetrical positions are unnecessary in the diameter direction of the cleaning nozzle 8. The generation of stress can be suppressed, and as shown in FIG. 12, the cleaning nozzle 8 having the axial injection port 80 and a plurality of inclined injection ports 82, 82,. The corners of the cylindrical holes are also efficiently cleaned, and as shown in FIG. 13, a plurality of lateral injection ports 83, 83,... Are arranged so that the tip of the cleaning nozzle 8 is uniformly distributed over a predetermined range of the flange. For those drilled with…, cleaning the cylindrical inner peripheral wall, etc. Ri and efficiently feasible.

    Further, as shown in FIG. 14, the nozzle 80 at the tip of the cleaning nozzle 8 protrudes from the tip edge of the suction cylinder 7 by a predetermined dimension A, as shown in FIG. The tip of the cleaning nozzle 8 is effectively inserted into the formed columnar hole P0, so that air, mist, dirt, dust and the like around the cleaning nozzle 8 can be sucked and removed without leaving the figure. As shown in FIG. 15, in the case where the spray nozzle 80 at the tip of the cleaning nozzle 8 is arranged so as to coincide with the tip edge position of the suction cylinder 7, as shown in FIG. Cleaning is possible, and air and dirt around the cleaning nozzle 8 can be reliably sucked. As shown in FIG. 16, the injection port 80 at the tip of the cleaning nozzle 8 has a predetermined dimension from the tip edge of the suction cylinder 7. As shown in FIG. Further, it is possible to more effectively perform the cleaning of the complicated shape portion such as the head hole P3 of the hexagon socket head bolt P1 protruding from the flat surface of the cleaning object P, and the peripheral edge of the suction cylinder 7 is the bolt head P2. If it is arranged so as to surround a range including the periphery, higher suction and removal action can be obtained.

(Effect of Example 1)
The cleaning gun 1 according to the first embodiment configured as described above removes the suction port fitting 71 of the suction cylinder 7 as shown in FIGS. 14 to 16 in addition to the above-described features of the effect of the present invention. The cleaning nozzle 8 can be easily attached and detached, and the set screw 32 can be loosened to allow the nozzle pipe 31 to be removed and assembled, thereby reducing assembly man-hours during production and improving maintenance. Further, the male screws 91, 91,... That are part of the detaching mechanism 9 of the cleaning nozzles 8, 8,... Having various shapes and dimensions shown in FIGS. As a result, as shown in FIG. 17 to FIG. 19, as long as the cleaning nozzle 8 is replaced and used in accordance with the cleaning object P having various shapes, the efficiency is improved in each stage as compared with the prior art. Efficient and effective cleaning Being able to Fight, and that there is no advantage obtained so far.

(Conclusion)
As described above, the cleaning gun of the present invention and the cleaning method using the same make it possible to achieve the intended purpose uniformly by the novel configuration, and are easy to manufacture, and several types of cleaning guns can be achieved. Compared to the conventional cleaning technology that had to use equipment sequentially, the cost of transporting objects to be cleaned and the number of man-hours for cleaning work can be greatly reduced, enabling production and maintenance efficiency to be greatly improved. Therefore, the parts manufacturing industry and product assembly industry, which have been difficult to reduce the cost of products, are more demanding to reduce costs, but manufacture and sell compressors and air guns. It will be highly valued by manufacturers of cleaning machines and the machine sales industry that wants to ship high-quality and inexpensive products, and will be widely used and spread in the future. It is expected to things.

The drawings show some typical embodiments embodying the technical idea of the cleaning gun of the present invention and the cleaning method using the same.
It is a side view which cuts and shows a cleaning gun. It is a bottom view which shows a cleaning gun. It is a top view which shows a liquid path switch. It is a top view which shows the switched liquid path switching device. It is a front view which cut and shows a liquid path switch. It is a top view which shows the decomposed | disassembled liquid path switch operation part. It is sectional drawing which shows the injection switch of a closed state. It is sectional drawing which shows the injection switch of an open state. It is sectional drawing which shows a large diameter washing nozzle. It is sectional drawing which shows a small diameter washing nozzle. It is sectional drawing which shows the washing nozzle which formed the opening in the surrounding wall. It is sectional drawing which shows the washing nozzle which formed several opening in the front-end | tip. It is sectional drawing which shows the washing nozzle which formed the some opening in the surrounding wall and the front-end | tip. It is sectional drawing which shows the suction pipe | tube from which the cleaning nozzle tip protruded. It is sectional drawing which shows the suction pipe | tube with which the front-end | tip of a washing nozzle corresponded to the cylinder end. It is sectional drawing which shows the suction pipe | tube which the washing | cleaning nozzle front-end | tip arrange | positioned in the pipe back. It is sectional drawing which shows the use condition of a protrusion cleaning nozzle. It is sectional drawing which shows the use condition of the washing nozzle in which the front-end | tip matched the cylinder end. It is sectional drawing which shows the use condition of the washing nozzle arrange | positioned at the pipe back.

1 Cleaning gun 2 Grip
20 Groove for the same finger
21 Ring retainer
22 Same through hole 3 Main compressed air circuit
30 Same connector part
31 Same nozzle pipe
32 Same set screw
33 Same negative pressure induction circuit
34 Same branch point
35 Same-liquid mixer 4 Liquid circuit
40 Same connector part
41 Same-component circuit
42 Separate liquid circuit 5 Liquid path switch
50 Same cylinder
51 Same discharge path
52 Same rotating spool
53 Head wearing
54 Same-liquid conversion circuit
55 Same liquid conversion circuit
56 Same operation part (operation disk)
57 Same fixing screw
58 Same operating lever 6 Injection switch
60 Same operation input section
61 Same trigger
62 Same injection valve
63 Same valve hole
64 Same coil spring
65 Same valve rod
66 Valve guide 7 Suction cylinder
70 Same connection part
71 Same suction port bracket
72 Same connection seat 8 Cleaning nozzle
80 Same outlet
81 Same vacuum hole
82 Inclined outlet
83 Same side direction injection port 9 Desorption mechanism
90 Same female screw
91 Same male screw α Inclination angle of the suction cylinder 7 A Projecting dimension of the cleaning nozzle from the suction cylinder B Retraction dimension of the cleaning nozzle into the suction cylinder C Compressed air (compressed air)
D Cleaning nozzle outer diameter d Cleaning nozzle small diameter tip outer diameter S Ring seal P Object to be cleaned
P0 Same columnar hole (screw hole)
P1 Hexagon socket head cap screw
P2 Same bolt head
P3 Same bolt head hole

Claims (9)

    Concentric with the suction cylinder at the center of the tip of the suction cylinder, which is tilted and integrated in an appropriate angle and posture at the tip of the grip, allowing gas or gas-liquid mixture to be jetted in the direction of the tip. The main nozzle is provided with an injection switch so as to expose an operation input section on an outer wall that can be operated by a finger gripping the grip at a suitable position in the middle of a pipe line extending from the proximal end of the grip to the cleaning nozzle. A compressed air circuit is built in, and the end of the negative pressure induction circuit branched from an appropriate position between the injection switch of the main compressed air circuit and the cleaning nozzle is arranged in a direction opposite to the cleaning nozzle at an appropriate position on the inner wall of the suction cylinder. The one end of the suction cylinder opens toward the side and is extended into the grip from the proximal end of the grip to the vicinity of the injection switch and at least one other liquid Connected to each inner end of the path is a liquid path switching device for switching operation to arbitrarily select one liquid and another liquid from the outside, and the discharge path from the liquid path switching device is connected to the main compressed air circuit. A cleaning gun characterized in that it is connected to a gas-liquid mixer arranged at an appropriate position between a negative pressure induction circuit branch point and a cleaning nozzle.     At the center of the tip of the suction tube that is inclined and integrated with the tip of the grip at an appropriate angle and orientation, the tip of the suction tube is directed in the lateral direction via a detachable mechanism so as to be concentric with the suction tube. It is possible to replace the cleaning nozzle that can inject gas or gas-liquid mixture in a replaceable manner, and to operate it with a finger that grips the grip in the middle of the pipeline from the proximal end of the grip to the cleaning nozzle. A main compressed air circuit in which an injection switch is arranged to expose the operation input unit on the outer wall is built in, and the end of the negative pressure induction circuit branched from an appropriate position between the injection switch of the main compressed air circuit and the washing nozzle is In the appropriate position on the inner wall of the suction cylinder, the grip is inclined in the direction opposite to the washing nozzle and the distal end of the suction cylinder opens toward the side, and the grip from the base end of the grip to the vicinity of the injection switch Stretched in A liquid path switch for switching operation for arbitrarily selecting one liquid and another liquid from the outside is connected to each inner end of the one liquid circuit and at least one separate liquid circuit, and the liquid path switching A cleaning gun characterized in that the discharge path from the container is connected to a gas-liquid mixer arranged at an appropriate position between the branch point of the negative pressure induction circuit of the main compressed gas circuit and the cleaning nozzle .     The suction cylinder is formed by connecting one end of a purification device such as a dust collector, a gas-liquid separator, a filter, or a guide pipe extending from the purification device, to the end of the suction tube. 2. The cleaning gun according to any one of the above.     Prepare at least two cleaning nozzles with a part of the common detaching mechanism at the base end, and each cleaning nozzle has an outer diameter within a predetermined range of the nozzle tip and a large or small relationship with each other. The cleaning gun according to any one of claims 1 to 3, wherein the cleaning gun is configured as described above.     The cleaning nozzle is provided with a part of a desorption mechanism at its base end, and an end wall injection hole that opens to the tip wall and a plurality of peripheral wall injection holes that are arranged so as to be balanced in a circumferential direction at a suitable place in the middle of the peripheral wall The cleaning gun according to any one of claims 1 to 4, wherein     When the cleaning nozzle is provided with a part of the attachment / detachment mechanism at the base end, and the tip of the suction cylinder is attached to the other part of the attachment / detachment mechanism of the hook, the tip of the cleaning nozzle is fixed so that it protrudes from the tip of the suction cylinder. The cleaning gun according to any one of claims 1 to 5, wherein the cleaning gun is formed.     When the cleaning nozzle is provided with a part of the desorption mechanism at the base end and the tip of the suction cylinder is mounted on the other part of the desorption mechanism of the hook, the tip of the cleaning nozzle is arranged at the same position as the tip of the suction cylinder The cleaning gun according to any one of claims 1 to 5, wherein the cleaning gun is fixed as described above.     When the cleaning nozzle is provided with a part of the desorption mechanism at the base end and the tip of the suction cylinder is mounted on the other part of the desorption mechanism, the tip of the cleaning nozzle moves backward from the tip of the suction cylinder. The cleaning gun according to any one of claims 1 to 5, wherein the cleaning gun is fixed to be arranged. Connect the one-liquid circuit to the gas-liquid mixer by operating the liquid path switch,
Operate the spray switch by bringing the center of the suction cylinder to the front of the object to be cleaned and operating the injection switch to blow the compressed air mixed with the cleaning liquid from the cleaning nozzle and suck the cleaning liquid mist, dirt, and dust from the tip of the suction cylinder. After the cleaning process to be removed, a separate liquid circuit is connected to the gas-liquid mixer by operating the liquid path switch, and the compressed air mixed with pure water is blown from the cleaning nozzle, and the tip of the suction cylinder is clearly known. In addition, the cleaning liquid rinsing process for sucking and removing dirt, dirt, dust, etc. is performed, the liquid supply to the gas-liquid mixer is stopped by operating the liquid path switch, and only compressed air is blown from the cleaning nozzle. The cleaning method using the cleaning gun according to any one of claims 1 to 7, wherein a drying step of sucking and removing air, moisture and the like from the tip is known.

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