JPH0319979Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a cleaning gun that sprays a cleaning liquid onto the surface of an object to be cleaned.

[Prior art and its problems]

Conventionally, when cleaning an object to be cleaned, such as the brakes of a car, a cleaning gun was used that simply sprayed cleaning liquid from a nozzle at a predetermined pressure onto the object. Work efficiency was extremely low because the process involved the double effort of spraying cleaning liquid onto the surface of the object to be cleaned using a gun, and then polishing the surface of the object to remove dirt using a separately prepared brush or piece of cloth. It had the disadvantage of being bad.

Here, if a brush is attached around the nozzle of the cleaning gun, supply of cleaning liquid and brushing can be performed at the same time, but in this case, the cleaning liquid discharged from the nozzle is obstructed by the bristles of the brush. There is a problem in that the cleaning liquid is not sprayed forward and the cleaning liquid cannot be sprayed over a wide area on the surface of the object to be cleaned.

In addition, in order to solve this problem, it may be possible to attach the nozzle tip so that it extends and protrudes toward the tip of the brush, but in this case, the tip of the nozzle may come into contact with the object to be cleaned when brushing. This may cause damage to the surface.

[Purpose of invention]

Therefore, the present invention makes it possible to reliably spray the cleaning liquid onto the surface of the object to be cleaned without causing the above-mentioned problems and adverse effects, and at the same time, it is possible to directly spray the cleaning liquid onto the surface of the object to be cleaned without having to prepare a separate brush or piece of cloth. We provide a new cleaning gun that can polish surfaces,
The purpose is to improve the efficiency of cleaning work.

[Structure of the idea]

In order to achieve this purpose, the cleaning gun according to the present invention has a nozzle cap having a through hole for movably inserting and supporting a nozzle that spouts cleaning liquid, and a cleaning gun that surrounds the through hole. The brush is fixed, and the nozzle is configured to protrude from the through hole to near the tip of the cleaning brush due to the hydraulic pressure of the cleaning liquid.

[Effect of invention]

According to the present invention, since the cleaning brush is fixed to the tip of the nozzle cap that supports the nozzle that sprays the cleaning liquid, the cleaning liquid can be sprayed from the nozzle without using a separate brush or piece of cloth. You can brush the surface of the item to remove dirt. In addition, since the nozzle is configured to protrude near the tip of the brush due to the hydraulic pressure of the cleaning liquid, the cleaning liquid is sprayed forward and reliably onto the object to be cleaned without being hindered by the bristles of the brush. be able to. Furthermore, since the nozzle is movably supported within the through-hole of the nozzle cap, when brushing, the tip of the nozzle is pushed by the cleaning brush and pushed into the through-hole, so that the nozzle is brushed. There is no risk of damaging the surface of the item to be cleaned.

〔Example〕

Hereinafter, the present invention will be explained based on specific embodiments shown in the drawings.

The figure is a sectional view showing an example of a cleaning gun according to the present invention.

The cleaning gun G includes a gun body 1 to which cleaning fluid at a predetermined hydraulic pressure is supplied, a needle valve 3 disposed in a cleaning fluid passage 2 formed in the gun body 1, and a needle valve 3 that opens and closes the needle valve 3. It is composed of a lever 4 and a nozzle gap 6 that mounts and supports a nozzle 5 that sprays cleaning liquid. Note that 7 is a nipple for connecting a cleaning liquid supply pipe (not shown), and 8 is a connecting nut for fixing the nozzle cap 6 to the front end of the gun body 1.

The gun body 1 is provided with a valve seat 9 for a needle valve 3 at its front end, and is engaged with a locking pin 10 penetrating through the peripheral surface of the needle valve 3 to lock the needle valve 3 into the valve seat. A spring 11 that biases in nine directions is installed inside, and a needle valve guide 12 and a needle valve gasket 13 made of nylon that slidably insert and support the rear end of the needle valve 3 are installed at the rear end. 12 and packing 13 are fixed by a nut 14.

The lever 4 is mounted and supported by a spring pin 15 on the upper rear end of the gun body 1 so as to be rotatable up and down, and has a trigger portion 4 a extending horizontally toward the front end of the gun body 1 . It engages with a nut 17 fixed to the rear end with a cap nut 16 to move the needle valve 3 back and forth.

The nozzle cap 6 has a through hole 18 in its center, into which the nozzle 5 is loosely inserted, and a cleaning brush 19 at its tip so as to surround the through hole 18.
is fixed, and the rear end side is screwed into a connecting nut 8 screwed onto the gun body 1 via an O-ring 20.

The nozzle 5 is formed of a hollow thin pipe slightly longer than the length of the through hole 18 and is inserted into the through hole 18 so as to be freely movable. A stopper 21 that abuts on the step 18a is fixed and supported so as not to come out of the through hole 18, and when the stopper 21 abuts on the step 18a, its tip touches the front end of the nozzle cap 6 as shown by the solid line. The brush 19 is configured to protrude a predetermined length from the tip to near the tip of the brush 19.

The above is the configuration of the cleaning gun G according to the present invention.
Next, its effect will be explained.

When cleaning is performed, first, a cleaning liquid is force-fed into the cleaning liquid passage 2 of the gun body 1 from the cleaning liquid supply pipe connected to the nipple 7. Next, the gun body 1
and the trigger part 4a of the lever 4 with one hand at the same time, and make the tip of the cleaning gun G face the object to be cleaned.

In this state, the needle valve 3 is urged forward by the spring 11 and its tip abuts against the valve seat 9 to close the valve, so no cleaning liquid is supplied into the through hole 18 of the nozzle cap 6.

Then, when the trigger part 4a of the lever 4 is grasped together with the gun body 1, the needle valve 3 is moved backward against the spring 11, and its tip is released from the valve seat 9.
The cleaning liquid forced into the cleaning liquid passage 2 is fed into the through hole 18 of the nozzle cap 6, and the nozzle 5 loosely inserted into the through hole 18 is automatically moved to the state shown by the chain line by the hydraulic pressure of the cleaning liquid. is pushed forward as shown by the solid line, and the tip of the nozzle 5 is projected toward the tip of the cleaning brush 19. At the same time, the cleaning liquid fed into the through hole 18 passes through the nozzle 5 from the tip of the nozzle 5. Injected.

Here, the tip of the nozzle 5 is connected to a cleaning brush 19.
Since the brush 19 protrudes close to the tip of the brush 19, the cleaning liquid can be sprayed forward vigorously without being hindered by the brush 19, and the cleaning liquid can be sprayed over a wide area onto the surface of the object to be cleaned. be able to.

Then, when the lever 4 is released and only the gun body 1 is held, the needle valve 3 is moved forward by the elastic force of the spring 11 and comes into contact with the valve seat 9, and the needle valve 3 is moved forward by the elastic force of the spring 11 and comes into contact with the valve seat 9. When the supply of the cleaning liquid is stopped and brushing is performed by bringing the cleaning brush 19 into contact with the surface of the object to be cleaned on which the cleaning liquid has been sprayed in this state, the brush 19 which bends and stretches when it comes into contact with the object to be cleaned causes the nozzle to move. The tip of the nozzle 5 is pushed backward, and the nozzle 5 is pushed into the through hole 18 again. Therefore, there is no risk that the tip of the nozzle 5 will come into contact with the surface of the object to be cleaned and cause damage during brushing.

As described above, in the cleaning gun G, since the cleaning brush 19 is fixed to the tip of the nozzle cap 6 that supports the nozzle 5 that sprays the cleaning liquid, the nozzle 5 can be cleaned without using a separate brush or piece of cloth. The cleaning liquid can be sprayed from the machine and brushed directly onto the surface of the object to remove dirt.

In addition, since the nozzle 5 is configured to protrude near the tip of the brush 19 due to the hydraulic pressure of the cleaning liquid, the cleaning liquid can be sprayed forward without being hindered by the bristles of the brush 19 to reliably hit the object to be cleaned. Can be sprayed.

Furthermore, since the nozzle 5 is supported in a freely movable manner within the through hole 18 of the nozzle cap 6, the tip of the nozzle 5 is pushed by the cleaning brush 19 and pushed into the through hole 18 when brushing. ,
Therefore, there is no risk of damaging the surface of the object to be cleaned.

Furthermore, in the embodiment, since the trigger portion 4a of the lever 4 is disposed parallel to the gun body 1, spraying of the cleaning liquid and brushing can be easily performed with one hand.

[Effect of idea]

As mentioned above, the cleaning gun according to the present invention is
The cleaning solution can be sprayed over a wide area on the object to be cleaned, and at the same time, dirt can be removed by brushing without using a separate brush or cloth, and without damaging the surface of the object. This has the excellent effect of greatly improving the efficiency of cleaning work.

[Brief explanation of drawings]

The figure is a sectional view showing an example of a cleaning gun according to the present invention. Explanation of symbols, G...Cleaning gun, 1...Gun body, 2
...Cleaning liquid passage, 3...Needle valve, 4...Lever, 5
... nozzle, 6 ... nozzle cap, 18 ... through hole,
18a...Stepped portion, 19...Cleaning brush, 21...Stopper.

Claims (1)

[Scope of utility model registration request] A cleaning brush is fixed to the tip of the nozzle cap, which has a through hole for movably inserting and supporting a nozzle that spouts cleaning liquid, so as to surround the through hole, and the nozzle is moved through the through hole by the hydraulic pressure of the cleaning liquid. A cleaning gun characterized in that it is configured to protrude from inside the hole to near the tip of the cleaning brush.