KR20170069575A - Capable of adjustable length air gun - Google Patents

Abstract

The present invention relates to an air gun, comprising: a main body of an air gun; a fixed pipe attached to the main body and having a flow path for injecting compressed air to the inside, one end of which is inserted into the fixed pipe; Wherein the air outlet pipe and the connection pipe are inserted into the fixing pipe and are capable of being drawn out and inserted in multiple stages, The present invention relates to an adjustable air gun.

Description

[0001] The present invention relates to a length adjustable air gun,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an air gun used for the purpose of removing dust and the like by injecting compressed air to the outside, and more particularly to an air gun having a main body of an air gun, A connection pipe having one end inserted into the fixing pipe and provided in one or more than one of the connection pipes, and an air discharge pipe inserted into the end of the connection pipe to inject the compressed air, Wherein the air discharge pipe and the connection pipe are inserted into the fixing pipe so that the air discharge pipe and the connection pipe can be drawn out and inserted in multiple stages.

BACKGROUND ART [0002] Generally, an air gun is used for the purpose of removing dust and the like by injecting compressed air to the outside. The air gun has a compressed air circulation path formed therein, Respectively.

Further, a valve is provided at a rear end of the lever and is switched according to the close contact of the lever, and is provided with a lever coupled to the front portion of the body for injecting compressed air of the air gun. And a coupling end to which the nozzle is coupled while injecting the compressed air circulated through the body to the outside.

At this time, nozzles of various lengths can be coupled to the joining end of the air gun according to the application, and now, a single nozzle and an elongated nozzle have been introduced. A short nozzle is a nozzle having a short length, a body having a small outer diameter at the front and a large outer diameter at the rear, a body having a through hole formed therein, a nut at the rear outer periphery of the body, A male screw is provided with an engaging portion formed on the outer periphery.

On the other hand, the elongated nozzle is a nozzle having a long length, and a protruding tube having a length of about 20 cm is integrally formed on the front end of the nut-shaped body, and the rear end of the nut- .

Therefore, in the conventional air gun, when the long nozzle and the short nozzle are combined with each other as required, the long nozzle may be effective for jetting the compressed air in a narrow place or a narrow and long place.

However, since the elongated nozzles are fixed only by a certain length, there is a problem in that, if necessary, a nozzle having a short length or a slightly long distance is not required. There is a problem that the nozzles can not be appropriately selected in accordance with the required use because the short nozzles are too short.

Also, the conventional long nozzle and the short nozzle coupled to the air gun are not coupled to each other, and the nozzle must be stored separately.

In addition, since the compressed air is temporarily released and foreign substances such as the surrounding particles are blown out in the process of removing the foreign substances, when the air is introduced into the user's body, especially the eyes or respiratory tract, there is a possibility of causing respiratory diseases. There is a need to protect the human body from foreign matter by attaching protective equipment to one side of the air gun.

Korean Patent Publication No. 1420835 (Apr. 11, 2014) discloses a " air gun assembly having a protective film ", which is composed of an injection nozzle for ejecting high-pressure air to the outside, a main body for supporting the injection nozzle, An air supply pipe for supplying air, and a protective film detachably coupled to the spray nozzle to prevent foreign matter from being supplied to the user when air is sprayed, wherein the protective film has a coupling shaft into which the injection nozzle is inserted, And a coupling bracket coupled to the support frame and surrounding the radially outer side of the injection nozzle, and a coupling bracket for constraining the position of the injection nozzle inserted into the coupling shaft.

However, the invention disclosed in the above-mentioned prior art documents has a problem in that it can not be easily installed and disassembled due to complicated components although there is a supporting force by supporting a plurality of frames

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above-mentioned problems, and it is an object of the present invention to provide an air bag which can be suitably changed in length, And the like.

Another object of the present invention is to provide an air gun capable of minimizing the foreign matter emitted by the air pressure toward the operator during the air gun injection.

In order to achieve the above object, the present invention provides an air gun comprising: a main body (10) of an air gun; A fixed pipe (20) having one end attached to the main body and having a flow path for injecting compressed air to the outside; A connection pipe (30) having one end inserted into the fixing pipe and having one or more ends; And an air discharge pipe (40) inserted in an end portion of the connection pipe to inject compressed air, wherein the air discharge pipe and the connection pipe can be inserted into and inserted into the fixed pipe in multiple stages, And a funnel-shaped lid 50 is provided at the end of the air discharge pipe so that the foreign material does not scatter to the operator.

In order to prevent the rear end of the fixing pipe 20, the connecting pipe 30 and the air discharge pipe 40 from completely separating from the front end thereof, a separation preventing edge 61 is provided on the inner circumferential surface of the end of the front end, When the rear end is drawn out from the front end to the maximum length, one side of the fixing jaw 62 is fixedly attached to the side of the separation preventing jaw 61 and the compressed air is compressed by the front and rear ends of the fixing jaw 62 It is preferable that a sealing o-ring 63 is provided on the other side of the fixing jaw 62 so as to prevent it from being discharged.

The lid 50 is formed of a synthetic resin material or rubber material having elasticity. When the lid 50 is not used, it is folded and stored side by side with the air discharge pipe. In use, the lid 50 is formed into a shape of a funnel It is preferable to develop it.

In addition, the lid 50 is formed in the shape of a net, so that the compressed air escapes to the outside of the lid, but the foreign material having a predetermined size or more is guided to remain inside the lid.

According to the present invention, the length can be suitably varied as needed, and the stages are combined and stored at the time of storage, so that the convenience of use is very high and there is no fear of loss.

In addition, there is an effect that foreign matter emitted by the air pressure at the time of spraying the air gun can be minimized toward the operator.

1 is an external perspective view of an air gun according to the present invention.
Fig. 2 is a partial enlarged view of a portion of Fig. 1
Fig. 3 is an external perspective view of a state in which the lid is opened according to the present invention.
Fig. 4 is a partial cross-sectional view of a lid-
5 is a schematic view showing a state in which the lid opening according to the present invention is deployed by compressed air
Fig. 6 is a perspective view of the cover according to the present invention,
Fig. 7 is a schematic view showing a folded state of the lid in accordance with the present invention when not in use; Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a partially enlarged view of a portion of FIG. 1, FIG. 3 is an external perspective view of a lid according to the present invention, and FIG. 4 is a cross- 5 is a schematic view showing a state in which the lid of the lid according to the present invention is deployed by compressed air, Fig. 6 is an external perspective view of the lid in accordance with the present invention in a folded state, Fig. 7 is a cross- Is a schematic view showing a state in which the lid is folded when not in use.

First, as shown in Fig. 1, the present invention comprises a main body 10 of an air gun; A fixed pipe (20) having one end attached to the main body and having a flow path for injecting compressed air to the outside; A connection pipe (30) having one end inserted into the fixing pipe and having one or more ends; And an air discharge pipe (40) inserted in an end portion of the connection pipe to inject compressed air, wherein the air discharge pipe and the connection pipe can be inserted into and inserted into the fixed pipe in multiple stages, And a funnel-shaped lid 50 is provided at the end of the air discharge pipe so that the foreign material does not scatter to the operator.

The main body 10 is provided with a tube (not shown) connected to the outside in order to supply compressed air to the lower end of the main body 10, and a lever for injecting compressed air is provided .

The fixed pipe 20 has one end inserted into the main body 10 and has a flow path for injecting compressed air to the outside.

One end of the connection pipe 30 is installed inside the fixing pipe and is provided in a plurality of one or more.

The air discharge pipe (40) is inserted into the end portion of the connection pipe, and compressed air is injected.

Accordingly, the air discharge pipe 40 and the connection pipe 30 can be inserted into and inserted into the fixing pipe 20 in multiple stages, and the main body 10, the fixing pipe 20, (20), the connection pipe (30), and the air discharge pipe (40).

2, the fixing pipe 20, the connecting pipe 30, and the air discharge pipe 40 are provided with a release preventing tuck (not shown) on the inner circumferential surface of the end portion of the front end so as to prevent the rear end from being completely separated from the front end. And a fixing jaw 62 is provided on the outer circumferential surface of the end of the rear end so that one side of the fixing jaw 62 is tightly fixed to the side of the escape preventing jaw 61 when the rear end is drawn out from the front end to the maximum length, It is preferable that the sealing o-ring 63 is provided on the other side of the fixing jaw 62 so as to prevent the compressed air from being discharged to the front and rear ends.

Therefore, according to the present invention, by inserting or pulling out the connection pipe 30 and the air discharge pipe 40 into the fixing pipe 20, the length can be suitably changed as necessary, So that the convenience of use is increased.

3, the lid 50 is provided at the end of the air discharge pipe in the form of a funnel whose width increases toward the end of the air discharge pipe so that foreign matter does not scatter to the operator.

4 to 7, the lid 50 is formed of a synthetic resin material or a rubber material having elasticity. When the lid 50 is not used, it is folded and stored side by side with the air discharge tube. In use, And is preferably deployed in the form of a funnel by the compressed air being injected.

That is, the lid 50 is provided with a coating portion 51 extending in the form of a funnel and a curved portion 52 radially provided on the inner peripheral surface of the coating portion. The curved portion 52 has an adhesive The front end portion of the front end of the air discharge pipe 40 which is in close contact with the outer circumferential surface of the air discharge pipe 40 is coated with an adhesive so as to be freely rotatable, And an insertion hole 41 through which the front end of the femoral portion is inserted is formed on the outer circumferential surface.

The coating portion 51 may be formed of a synthetic resin material or a rubber material having elasticity, but is preferably made of a nonwoven fabric or a genuine material formed in a net shape so that the compressed air escapes to the outside of the cover, Is preferably guided so as to remain inside the lid.

In other words, when the coating portion 51 is formed into a nonwoven fabric having fine holes, the coating portion can be easily folded or unfolded by the movement of the curled portion 52. When the compressed air is sprayed onto the edge or the wall, But the air can be discharged to the outside through the fine holes.

An adhesive is applied to the outer circumferential surface of the catching portion 52 and is adhered and fixed to the inner circumferential surface of the cover portion 51. An adhesive is not applied to the front end portion where the catching portion 52 is in close contact with the outer circumferential surface of the air discharge pipe 40 The film portion 51 and the hook portion 52 are separated from each other and freely rotatable.

In addition, an insertion hole 41 through which the front end of the curled portion is inserted is formed on the outer peripheral surface of the end portion of the air discharge pipe 40.

3 to 5, when the compressed air flows into the air discharge pipe 40, the compressed air flows into the air discharge pipe 40 through the insertion hole 41, The front end portion of the lance part 52 is pushed out, so that the coating part 51 is developed in the form of a funnel.

6 and 7, when the compressed air does not flow into the air discharge pipe 40 and is not used, the front end of the flesh part 52 is inserted into the insertion hole 41 to the outside The film portion 51 can be stored in a folded state.

Thus, the present invention provides an air gun comprising: a main body 10 of an air gun; A fixed pipe (20) having one end attached to the main body and having a flow path for injecting compressed air to the outside; A connection pipe (30) having one end inserted into the fixing pipe and having one or more ends; And an air discharge pipe (40) inserted in an end portion of the connection pipe to inject compressed air, wherein the air discharge pipe and the connection pipe can be inserted into and inserted into the fixed pipe in multiple stages, And a funnel-shaped lid 50 is provided at the end of the air discharge pipe so that the foreign material is not scattered to the worker, and the width of the lid is increased toward the end of the air discharge pipe. It is needless to say that the present invention is not limited to the above-described embodiment, and can be modified by those skilled in the art without departing from the spirit of the present invention. Accordingly, the scope of claim of the present invention is not limited within the scope of the detailed description, but will be defined by the following claims and technical ideas thereof.

100: Airgun with adjustable length
10: Body
20: Fixture tube
30: Connector
40: air discharge pipe
41: Insertion ball
50: cover plate
51:
52: The mortgage
61:
62: Fixed chin
63: O ring

Claims (4)

A main body 10 of an air gun; A fixed pipe (20) having one end attached to the main body and having a flow path for injecting compressed air to the outside; A connection pipe (30) having one end inserted into the fixing pipe and having one or more ends; And an air discharge pipe (40) inserted in the end portion of the connection pipe to inject compressed air, wherein the air discharge pipe and the connection pipe are inserted into the fixing pipe so as to be drawn out and inserted into the multi-
Wherein the end of the air discharge pipe is further provided with a funnel-shaped lid (50) whose width increases toward the end of the air discharge pipe so that foreign matter does not scatter to the operator.
The air conditioner according to claim 1, wherein the fixing pipe (20), the connecting pipe (30), and the air discharge pipe (40) And a fixing jaw 62 is provided on the outer circumferential surface of the end of the rear end so that one side of the fixing jaw 62 is tightly fixed to the side of the escape preventing jaw 61 when the rear end is drawn out from the front end to the maximum length,
Characterized in that a sealing o-ring (63) is provided on the other side of the fixing jaw (62) so as to prevent the compressed air from being discharged to the front and rear ends.
The air conditioner according to claim 1, wherein the cover (50) is formed of a synthetic resin material or a rubber material having elasticity, is folded and stored side by side with the air discharge pipe (40) Wherein the air gun is deployed in the form of a funnel by air.
2. The apparatus according to claim 1, wherein the lid opening (50) is formed in the shape of a net, so that the compressed air is led out to the outside of the lid opening, but foreign substances having a predetermined size or more are left inside the lid opening Possible airgun.

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