JPH023805Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Technical Classification/Field> The disclosed technology belongs to the technical field of improving the workability of a fluid injection gun used for cleaning work or the like.

<Explanation of the gist> This invention has an injection nozzle at the tip of the inner tube, and the base of the inner tube is inserted into the outer tube connected to the gripper to form the gun body. This invention relates to a gun structure for fluid injection, and in particular, a pressurized fastener is provided at the tip of the outer tube for pressure-fixing an inner tube inserted into the outer tube, and the pressurized fastener and the outer tube are connected to each other. A fluid injection gun structure is provided in which a bypass pipe connected to a fluid pressure source is connected to the base, and the inner pipe is loosely inserted into the outer pipe from the pressure fastening body to be expandable and retractable. It is an idea.

<Prior Art> As is well known, cleaning work, paint spraying work, etc. are carried out efficiently using a gun connected to a fluid pressure source such as a pump.

<Problems with the prior art> For example, when cleaning the inside of beams in a factory using a pressure water cleaning spray method, conventionally a fixed length (commercially available) gun was used; If the location is located at a high location, there is a drawback that sufficient cleaning cannot be performed. As a result,
In addition to the cost of constructing work scaffolding, etc., the work process was complicated, and there were problems in that efficient cleaning work could not be carried out.

<Purpose of the invention> The purpose of this invention is to solve the technical problem of the spray gun used for cleaning work based on the above-mentioned conventional technology, and to thoroughly clean distant objects even from a distance. The present invention provides an excellent fluid injection gun structure that can be used in various industries where injection fluids are used. That is.

<Structure of the invention> In line with the above-mentioned purpose, the structure of this invention, whose gist is the scope of the above-mentioned utility model registration claim, is to solve the above-mentioned problems by using a spray gun to carry out prescribed cleaning, etc. When performing work, slide the inner tube loosely inserted into the outer tube that forms the gun body from the pressurized fastener provided at the tip of the outer tube, pull it out to a predetermined length, and pull the trigger of the gun body. As a result, the compressed fluid flows through the outer pipe and the bypass pipe connected between the pressurized fastener and the base of the outer pipe, and the fluid pressure flowing through the bypass pipe connects the inner pipe together through the pressurized fastener. This technology belongs to a technical field in which the overall length of the gun can be maintained at the predetermined length at all times during work, thereby making it possible to perform a predetermined work efficiently.

<Structure of the invention> Next, one embodiment of this invention will be described below based on the drawings.

Reference numeral 1 designates a cleaning gun for spraying pressure water as a fluid, which constitutes the gist of this invention, and the gun body is formed by an inner tube 3 having a spray nozzle 2 at the tip, an outer tube 4, and a grip body 5. There is.

A hose 6 connected to a fluid pressure source such as a pump (not shown) is connected to the base end, and the base end of the outer tube 4 is screwed into the tip of the grip body 5 which has a trigger 7 at the lower part. Further, the outer end of the outer tube 4 is screwed onto the inner wall of a hollow portion of a lower lid 10 which is fastened with bolts 9 to the bottom surface of a casing 8 as a pressurized fastening body.

A sub-piping 13 serving as a bypass pipe is connected to the base of the outer tube 4 and the large-diameter cylinder 12 on the upper lid 11 side of the casing 8 in communication.

Further, the base side of the inner tube 3 is slidably inserted into the cylinder 12' having the same diameter as the inner tube 3 of the casing 8 while being sealed, and furthermore, the base end of the inner tube 3 is inserted into the outer tube 4. It is loosely inserted in the specified position.

Between the large-diameter cylinder 12 and the inner tube 3 near the upper cover 11 of the casing 8, there is a movable ring 14 with both tapered surfaces extending downwardly in a convex shape, and a movable ring 14 having both tapered surfaces extending upwardly in a convex shape. A fixed ring 15 is mounted around the movable ring 14 and the fixed ring 15.
Inner and outer rings 16 and 17, each having a tapered surface opposite to each of the tapered surfaces of the rings 14 and 15, are loosely inserted between the opposing convex tapered surfaces.

In addition, 18 is a surrounding O-ring, 19 is a surrounding seal packing, and 20 is a arm, which is fixed to the middle of the outer tube 4 and extends downward.

<Embodiment - Effect> In the above-described configuration, when cleaning high places such as inside beams in a factory using the cleaning gun 1, the worker can cut the inner pipe 3 to any length as shown in FIG. By pulling it out and operating the trigger 7, pressure water (not shown) flows into the outer pipe 4 and the sub-piping 13, and the pressure water that has flowed into the sub-piping 13 flows into the large diameter cylinder 12 of the casing 8, and the movable ring 14, the inner and outer rings 16, which had been loosely inserted into and out between the movable ring 14 and the fixed ring 15,
17 is pressed against the large diameter cylinder 12 and the inner tube 3 through each tapered surface, and the casing 8 and the inner tube 3
are concluded together.

In this way, the extended inner tube 3 is not stored into the outer tube 4 side during cleaning work, and cleaning work is always performed at a predetermined length, so that the construction range of work scaffolding etc. is also reduced compared to conventional methods. It is now possible to reduce the amount of water required compared to when using a commercially available cleaning gun.

Also, when cleaning a location that is not very high using the cleaning gun 1, the pressure is applied from the injection nozzle 12 with the inner tube 3 housed in the outer tube 4 in a short length without pulling out the inner tube 3. Of course, it can also spray water.

<Other Examples> It goes without saying that the embodiments of this invention are not limited to the above-mentioned embodiments; for example, the injection nozzle at the tip of the inner tube may be replaced with a painting nozzle to be used for paint spraying work. Various aspects such as doing so can be adopted.

<Effects of the invention> According to this invention, in a fluid injection gun structure in which a gun body is formed by inserting an inner tube base having an injection nozzle at the tip into an outer tube connected to a gripper, A bypass pipe connected to a fluid pressure source is connected between a pressure fastener provided at the tip of the pipe and the base of the outer pipe, and the inner pipe is loosely inserted into the outer pipe from the pressure fastener. By making it expandable and expandable, for example, when cleaning high places such as beams in factories, workers can erect work scaffolds over a wide range by simply extending the inner tube with the spray nozzle. The user will be able to perform the work without having to worry about it, which will significantly shorten the work time and significantly improve the work ability.

Furthermore, since the range for constructing work scaffolds and the like can be significantly shortened, the costs involved can be reduced, which has the advantage of reducing overall work costs.

In addition, there is also the secondary benefit of improved work stability because workers are no longer required to work at heights on scaffolding.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention,
FIG. 1 is a side view of the cleaning gun, FIG. 2 is a partial cross-sectional view of the tip of the inner tube, and FIG. 3 is an explanatory view of how the cleaning gun is used. 12... Injection nozzle, 3... Inner tube, 5... Gripping body, 4... Outer tube, 1... Gun, 8... Pressurized fastening body, 6... Fluid pressure source, 13... Bypass pipe.

Claims (1)

[Scope of utility model registration request] In a fluid injection gun structure in which an inner tube base having an injection nozzle at the tip is inserted into an outer tube connected to a gripper to form a gun body, a pressurized fastener provided at the tip of the outer tube. A bypass pipe connected to a fluid pressure source is connected between the base of the outer pipe and the inner pipe, and the inner pipe is loosely inserted into the outer pipe through the pressurized fastener to be expandable and retractable. Characteristic fluid injection gun structure.