KR200480921Y1 - Nozzle assembly capable of performing suction and high pressure blowing - Google Patents

Abstract

The present invention relates to a structure design of an air gun nozzle combined with a cleaning function, and mainly changes the nozzle structure into a high-pressure jet or a large-flow jet with concentrated air flow, The injection function is changed to an inhalation function to make it an air gun nozzle having an inhalation function.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a nozzle structure having suction switching and high-

The present invention relates to the design of the range of application of air guns. Conventional pneumatic air guns have had high-pressure injection function for a long time. However, in recent years, large flow rate nozzles And the use function and use are added by the change of the air flow blown from the air gun.

In addition to the conventional high-pressure injection and large-flow injection functions, the present invention adds a suction function in terms of functions and uses. That is, when the changeable base of the present invention is mounted on a conventional air gun, it has a cleaning purpose for sucking in addition to the injection function.

A conventional air gun structure has a body, a handle and a spray tube, a spray tube is installed at the front end of the body, a compressed air supply tube is connected to the rear end of the body, (air compressor), and controls the injection or blocking of the airflow by pulling or releasing the lever.

In the conventional air gun structure described above, the air gun has a large flow rate air flow, and the nozzle is mounted to the end of the air flow outlet of the spray gun when spraying. An air hole is installed along the spray gun at the end where the nozzle and the spray gun are combined And the air hole is located roughly behind the outlet of the spray tube. When airflow is injected from the spray tube, a negative pressure is generated in the tube. The airflow outside the nozzle flows into the nozzle by acceleration from the air hole, A large flow air gun is formed by jetting from the nozzle by strong airflow injected inside the jetting tube.

The present invention is based on the above-mentioned study on the application of the air gun function to further expand the use of the air gun, and it is considered that the air gun itself absorbs and discharges the air current, Is designed to function as an air outlet, and has never been applied to air suction design. In addition to the air intake function, the present invention maintains the air gun in the same direction when used so as to meet the habitual use of people.

The nozzle structure having the suction switching and high pressure injection function in the present invention includes a switching base, an air gun, a back cover, a front cover, and a slidable nozzle, wherein the switching base includes an intake base, an inner ring base, Wherein the intake screw is mounted on a lateral side of the intake base and the change base performs a direction change and an air flow change by the intake screw, And an air hole is formed in the inside of the intake screw so that the air chamber is communicated with the air hole and the intake base is connected to the hollow portion of the inner ring base An air flow hole is relatively installed, and a discharge hole is provided in the hollow portion of the exhaust base And a vent hole is formed in a predetermined position of the inner ring base so that the vent hole is communicated with the air chamber and the vent hole, And a nut;

Wherein the air gun is connected to the intake screw, the air gun has an intake hole, the intake hole communicates with the air hole of the intake screw,

The back cover covers the air flow hole of the intake base;

The front cover covers the discharge hole of the exhaust base, and the front cover is equipped with a spray pipe;

The slidable nozzle is attached to the spray tube of the front cover. A flange is provided at a front end of the spray tube to fix the position of the nozzle. The nozzle has a spray chamber therein, A sliding nut is provided at a rear end of the nozzle, and an O-type ring is provided between the nozzle and the sliding nut.

Further, a suction pipe is mounted in the air flow hole of the switching base, and a discharge pipe is mounted in the discharge hole.

More importantly, the use and installation of the parts is simple in use, and the user can complete the change of the function usage within the shortest time in the easiest way, so there is a lot of change in the combination of the structural parts. Accordingly, some of the structural parts of the present invention can be coupled to the spray gun of the conventional air gun.

At the same time, another function of the present invention can be used in combination with all gas and liquid fluid device members, whereby it can be applied to cooling, cleaning, and sucking of a machine or various apparatuses only by changing direction or replacing a connector, There are advantages such as easy operation, simple device, time saving and convenience.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a high flow schematic diagram of a preferred embodiment of the present invention.
2 is a suction switching schematic view of a preferred embodiment of the present invention;
3 is a high pressure injection schematic view of a preferred embodiment of the present invention.
Figure 4 is a high flow schematic diagram of another preferred embodiment of the present invention.
Figure 5 is a high flow schematic diagram of another preferred embodiment of the present invention.

1 is a schematic flow diagram of a comparatively preferred embodiment of the present invention. Referring to FIG. 1, a conversion base 10 is designed and the conversion base 10 includes an intake base 11, an inner ring base 12, And an air chamber 13 is formed between the intake base 11 and the inner ring base 12. The center of the intake base 11 and the inner ring base 12 is provided with an air flow hole A vent hole 14 is formed in the inner ring base 12 so that the air chamber 13 is communicated with the vent hole 14 of the air chamber 13, Type ring 18 is mounted between the intake base 11 and the exhaust base 16 and is connected to the air gun 40 at the lower side of the intake base 11. The O- And an air hole 20 is provided at the center of the air intake screw 19 so as to be sucked into the air chamber 13 and the air gun 40, It communicates with the hole 41. Of course, the intake screw 19 can be combined with a fluid system member mounted on various mechanisms to achieve the function of operating the fluid member, such as suction, spraying, etc. during cleaning.

The airflow sent from the air compressor through the intake hole 41 in the air gun 40 enters the air chamber 13 and then flows along the vent hole 14 toward the discharge hole 17, The air flow inside the air flow hole 15 is accelerated from the switching base 10 toward the discharge hole 17 and the air outside the air flow hole 15 The negative pressure inside the hole and the expanded design of both ends of the airflow hole 15 allow external air to flow into the airflow hole 15 and the intermediate portion is reduced to form acceleration and also to the high pressure airflow in the air chamber 13 So that the discharge hole 17 formed in the exhaust base 16 allows the large flow rate air stream to be discharged from the switching base 10. The adjusting screw 21 and the nut 22 on the intake screw 19 lock the intake screw 19 to the intake chamber 11 and the air gun 40 respectively.

Further, the intake structure of the air gun 40 can be regarded as a component of the fluid system member of other mechanisms, and when the fluid also flows into the intake base 11 through the intake screw 19 along the illustrated flow direction , It can be seen that a combination of function of the switching base 10 and the switching base 10 is added to the operation and function design of the mechanism to reach the set target effect.

Referring to FIG. 2, a schematic diagram of the suction switching of the preferred embodiment of the present invention is shown. After the nut 22 is loosened, the switching base 10 is rotated 180 degrees and then the nut 22 and the air gun 40 are locked So that the positions of the air hole 15 and the discharge hole 17 are interchanged while the suction hole 23 is fitted in the air hole 15 and the discharge hole 24 is fitted in the discharge hole 17, The other end of the discharge pipe 24 is inserted into an optional tub and then the suction pipe 23 sucks the product to be sucked into the object to be sucked and is discharged through the air hole 15 and the discharge hole 17, The air gun 4 may have an aspiration function.

3 is a schematic view of high pressure injection of a preferred embodiment of the present invention. The rear end of the switching base 10 covers the air flow hole 15 with the back cover 27, and the O- And a front end of the front cover 25 is provided with a discharge hole 17 by a front cover 25 and an O ring 18 by a close contact portion and a spray pipe 26 is attached to the front cover 25 Install it.

The pneumatic airflow introduced through the intake hole 41 of the air gun 40 is blocked by the air cover 20 and the air chamber 13 The vent hole 14, and the discharge hole 17 to form a high-pressure injection function.

Referring to FIG. 4, a large-scale flow diagram of another preferred embodiment of the present invention is shown in which a nozzle 28 is inserted into a spray tube 26 of the high-pressure spray structure shown in FIG. 3, A sliding nut 31 is provided at the rear of the nozzle 28 and an inner sliding hole 32 is formed at the center of the sliding nut 31 so as to be movable along the spray pipe 26 Type ring 34 is disposed between the nozzle 28 and the sliding nut 31 and the O-type ring 34 is deformed by the locking pressure of the sliding nut 31 and the nozzle 28 And the inner diameter of the O-ring 34 is brought into close contact with the outer diameter of the spray tube 26 to fix the nozzle 28 so as not to slide. By adjusting the position of the nozzle 28, If the end portion is located inside or outside of the nozzle 28, the air flow injection state is changed from high pressure injection to large flow injection And the distance between the outlet end of the injection tube 26 and the outlet end of the injection chamber 29 can be adjusted by moving the nozzle 28 and the flow rate of the large flow amount can be adjusted. An air intake hole 30 is provided on the side of the air inlet.

When a high-pressure airflow is injected from the injection pipe 26 into the injection chamber 29 of the nozzle 28 to inject air, a negative pressure is generated in the injection chamber 29, The rear air is allowed to enter the nozzle 28 and the air is introduced into the nozzle 28 by the extended design of the intake hole 30 so as to form an acceleration when the air enters the nozzle 28, Thereby forming a large flow rate airflow jet in the jetting chamber 29.

The flange 34 can be mounted on the front end of the injection pipe 26 and the separation of the nozzle 28 and the injection pipe 26 using the flange 34 can be prevented.

Referring now to Figure 5, there is shown a high flow rate schematic of another preferred embodiment of the present invention, wherein the spray tube 26 of Figure 4 is directly connected to the air gun 40, , The conventional air gun 40 can also be changed to the high-pressure injection or the large-flow airflow at any time through the movement of the nozzle 28 on the injection pipe 26.

3, 4, and 5 do not necessarily have to be curved, as shown, and may have different designs, such as curved or straight, depending on the design of the air gun.

Taken together, this invention is sufficiently novelty, and similar designs have not been disclosed or filed in the past, and it is worthy of being industrially useful as the function is substantially added. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

10: Conversion base
11: intake base
12: Inner ring base
13: air chamber
14: Vent hole
15: air flow hole
16: Exhaust base
17: Exit hole
18, 33: O ring
19: Intake screw
20: Air hole
21: Adjusting screw
22: Nut
23: suction pipe
24:
25: Front cover
26: Distributor
27: Back cover
28: Nozzles
29: injection chamber
30, 41: intake hole
31: Sliding nut
32: Inner sliding hole
34: flange
40: Air Gun

Claims (2)

A switch base, an air gun, a back cover, a front cover, and a slidable nozzle,
Wherein the switching base comprises an intake base, an inner ring base, an exhaust base, and an intake screw, the intake screw being mounted on a side of the intake base, And the inner ring base and the intake base are assembled to form an air chamber. An air hole is formed in the interior of the intake screw so that the air chamber is communicated with the air hole. Wherein the air intake base has an air flow hole relatively installed in a hollow portion of the inner ring base and a discharge hole is formed in a hollow portion of the exhaust base to communicate the air flow hole and the discharge hole, A vent hole is formed through the vent hole at a predetermined position of the inner ring base, Group and the chamber is communicated with the discharge hole, the air intake is provided with a screw, the adjusting screw and a nut, and;
Wherein the air gun is connected to the intake screw, the air gun has an intake hole, the intake hole communicates with the air hole of the intake screw,
The back cover covers the air flow hole of the intake base;
The front cover covers the discharge hole of the exhaust base, and the front cover is equipped with a spray pipe;
The slidable nozzle is attached to the spray tube of the front cover. A flange is provided at a front end of the spray tube to fix the position of the nozzle. The nozzle has a spray chamber therein, And an O-type ring is installed between the nozzle and the sliding nut,
Nozzle structure with suction switching and high pressure injection function. The method according to claim 1,
And a suction pipe is installed in the air flow hole of the switching base, and a discharge pipe is mounted in the discharge hole.

Images