KR20100074996A - Nozzle for jetting fluid low-pressure - Google Patents

Abstract

PURPOSE: A low pressure large flux injection nozzle is provided to effectively extinguish the fire regardless of the kind of fire. CONSTITUTION: A low pressure large flux injection nozzle includes: a distribution pipe(20) which is connected to a fire hose; a rotating lever(10) which is combined to the distribution pipe to be rotatable; a spraying linking passage(32) and first and second fine jet linking passages(34,36) which are connected through the rotating shaft in a fixed distance; a fine jet pipe(40) through which the water for fire extinguishing passes; a spraying pipe(42) through which the water for fire extinguishing flowed in through the spraying passage passes; a fine jet hole(48) which discharges the water for fire extinguishing passed through the spraying pipe into a fine fountain shape; a nozzle head(44) which discharges the water for fire extinguishing passed through the spraying pipe into the injection shape; and a knob(38) rotating with the rotary shaft.

Description

Low Pressure Large Flow Injection Nozzle {NOZZLE FOR JETTING FLUID LOW-PRESSURE}

The present invention relates to a fire nozzle, and more particularly, to a low pressure large flow spray nozzle which can discharge fire water simultaneously in a spraying or spraying form or selectively discharges in a spraying or spraying form according to the type of fire. It is about.

As is well known, the fire nozzle means a means for spraying high pressure fire water to the fire site.

Examples of the type of fire nozzle include a spout connected to a fire hose provided in a sprinkler or a fire truck or a fire hydrant, which is used in combination with a vertical pipe connected vertically to a branch pipe among fire pipes installed on the ceiling. .

The prior art related to the latter, which is referred to as a fire nozzle, is a Korean Utility Agency Registration Utility Model Publication No. 0226925 (name: fire nozzle).

The prior art is a hollow plastic first body consisting of a guide portion and a fastening portion, a bush inserted into and fixed to the inner surface of the fastening portion, a rod inserted into a rod fastening hole formed at one end of the guide portion and having a disc fastening portion at the other end, the The disk is fastened to the disc fastening part to control the discharge flow rate of the water for fire, and the first body is composed of a hollow second body is inserted into the interior fixed.

However, the structure of the prior art can only spray the fire water in the form of a water stream, there is a problem that it is impossible to use in the oil fire zone. Therefore, when an oil fire occurs, it is suppressed by halon or carbon dioxide instead of water, and the halon or carbon dioxide is not only harmful to the human body, but especially carbon dioxide gas has a secondary adverse effect even after extinguishing the device. There was a problem.

Therefore, the present invention for solving the problems as described above to discharge the fire water at the same time in the form of spraying and spraying, or to selectively discharge in the form of spraying or spraying to effectively extinguish regardless of the type of fire A low pressure large flow jet nozzle is provided.

In addition, the present invention is to provide a low pressure large flow injection nozzle that can easily change the discharge form only by the rotation operation of the rotary shaft by the operation of the knob.

In order to achieve the above objects, the present invention provides a low pressure large flow injection nozzle, which is connected to a fire hose and has a "b" type injection flow passage therein and a straight first, A distribution pipe having two spray connection flow paths formed therein, and a rotary shaft rotatably coupled to the distribution pipe and closing the injection flow path and the first and second spraying flow paths through the injection flow path and the first and second spraying flow paths. And a rotary lever screwed under the rotary shaft to rotate the rotary shaft in a forward and reverse rotational direction, formed through the rotary shaft at a predetermined interval, and closed by the rotational movement of the rotary shaft. A spray connection flow path and first and second spraying flow paths selectively communicating with a 2 atomization flow path, and are integrally formed at the tip of the distribution pipe and flow through the first and second atomization flow paths. Fire spray pipe passing through the spraying pipe, the spraying pipe passing through the spraying pipe, the spraying pipe passing through the spraying water and installed in the spraying pipe, and the spraying water passing through the spraying pipe It is coupled to the nozzle head and the nozzle head formed with a fine atomization port for discharging the water in the form of a spray, and a nozzle head for discharging the fire water passed through the injection pipe in the form of injection, and the end of the rotating shaft exposed to the upper surface of the distribution pipe and rotates together with the rotating shaft. And an operating knob, and an upper surface of the knob is configured to further form a display unit.

The low pressure large flow spray nozzle according to the present invention is capable of simultaneously discharging fire water in the form of atomization and injection, or selectively discharging it in the form of atomization or injection, thereby adjusting the discharge pattern of the fire water according to the type of fire. There is an advantage to effectively extinguish fires, especially Class B oil fires.

In addition, it is possible to change the discharge form of the fire water only by the rotation of the rotary shaft to perform the fire extinguishing work more quickly, and also has the effect of making it easy to access the fire zone.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. In the following detailed description, exemplary embodiments of the present invention will be described in order to accomplish the above-mentioned technical problems. And other embodiments that can be presented with the present invention are replaced by the description in the configuration of the present invention.

In the present invention, the fine spray and the spray flow path is selectively opened and closed through the rotary shaft rotated by the operation of the knob, and the fire water can be discharged simultaneously in the fine spray and the spray form, or discharged only in the spray or spray form. The low pressure large flow spray nozzle is designed to be able to change the discharge type of fire water according to the type.

The term "spray spray" to be presented in the present invention refers to a form in which water particles are spread out thinly and widely in the form of fog (or water fog), and the term of spray is concentrated in one place in the form of a direct weave (or water stream). Refers to the discharged form.

Hereinafter will be described in detail based on the preferred embodiment of the present invention, the present invention is not limited by the embodiment.

{Example 1}

1 to 3 are views showing a low pressure large flow injection nozzle to be implemented in the present invention.

As shown, the low pressure large flow injection nozzle 100 has a rotary lever 10, a distribution pipe 20, a rotating shaft 30, a knob 38, a fine spraying pipe 40, a spraying pipe 42 and a nozzle It comprises a head 44.

The rotary lever 10 is screwed under the rotary shaft 30 to allow the operator to grip the nozzle 100, and is a means for rotating the rotary shaft in the forward and reverse directions.

The distribution pipe 20 is connected to the fire hose 12 for supplying the fire water, the detailed structure of this distribution pipe 20 is shown in detail in FIG.

As shown in FIG. 3, three flow paths are formed in the distribution pipe 20. The flow passage is divided into a spray passage 22 formed at the center and first and second fine spray passages 24 and 26 spaced apart from each other by a predetermined distance from the spray passage 22. At this time, the first and second atomization flow paths 24 and 26 have a straight shape, whereas the injection flow path 22 has a bent shape of "b" shape.

The injection passage 22 and the first and second atomizing passages 24 and 26 receive fire water through the fire hose 12 when the distribution pipe 20 is connected to the fire hose 12. The fire spray water supplied to the first and second atomization flow passages 24 and 26 and the injection flow passage 22 is coupled to the tip of the distribution pipe 20 according to the rotation of the rotary shaft 30. And injected into the injection pipes 42, respectively.

The rotary shaft 30 is rotatably coupled to the distribution pipe 20, the rotary shaft 30 coupled to the distribution pipe 20 is the injection passage 22 and the first and second fine spray passage 24, By penetrating 26, the first and second spraying passages 24 and 26 and the injection passage 22 are closed to block the passage of fire water.

Three connecting passages are formed in the rotation shaft 30. As shown in FIG. 3, the first and second differentials are formed through the connection flow passage 32 in the center, and the injection flow passage 32 is spaced apart from each other by the upper and lower predetermined intervals. It is divided into connectionless flow paths 34 and 36.

The injection connection passage 32 is located in the same line as the injection passage 22 of the above-described distribution pipe 20 in a state where the rotary shaft 30 is bent in a "b" form and rotates the rotary shaft 30. And selectively communicate with the injection passage (22).

The first atomization connecting passage 34 is located in the same line as the first atomizing passage 34 of the distribution pipe 20 described above in a state where the rotary shaft 30 penetrates in a straight line shape. In accordance with the rotation operation is selectively communicated with the first atomization passage 34.

The first atomizing connecting passage 36 is a second atomizing passage 26 of the above-described distribution pipe 20 in a state in which the rotary shaft penetrates in a straight line in the same direction as the first atomizing connecting passage 34. It is located on the same line as and selectively communicates with the second atomizing passage 26 in accordance with the rotation operation of the rotary shaft (30).

On the other hand, the injection connection passage 32 is configured to pass through bent in the form of "b", rather than penetrating in a straight line like the first and second atomization connecting passages 34 and 36, as mentioned above, the rotating shaft 30 In order to selectively open the first and second atomizing connection flow paths 34 and 36 and the injection connection flow path 32 respectively according to the rotational angle of.

For example, assuming that the rotary shaft 30 is rotated by 90 °, the first and second atomizing flow paths 34 and 36 communicate with the first and second atomizing flow paths 24 and 26, and the "b" form. The injection connection flow path 32 bent into the spray connection flow path 32 is not in communication with the injection flow path 22 through a different angle from the first and second unsprayed connection flow paths 34 and 36 of the straight shape, and the rotation shaft Only when the 30 is rotated by 180 degrees, the injection connection passage 32 is able to communicate with the injection passage 22. In other words, when the rotating shaft 30 is rotated by 90 °, only the first and second atomizing oils 24 and 26 are opened, so that the fire water passes only to the first and second atomizing oil passages 24 and 26, and the rotary shaft 30 is rotated. When the 180 ° rotates, only the injection passage 22 is opened, so that the fire water can pass only toward the injection passage 22.

Meanwhile, the above-described knob 38, the atomizing pipe 40, the injection pipe 42, and the nozzle head 44 will be described with reference to FIGS. 1 and 2 again.

The knob 38 is coupled to an upper end of the rotating shaft 30 passing through the distribution pipe 20, and is a means for performing a rotating operation together with the rotating shaft 30. A display portion 38a is formed on the upper surface of the knob 38, and the display portion 38a visually confirms the rotation angle of the rotation shaft 30 to the outside. It is easy to select whether to open the spray water 24, 26 to spray the fire water, or to open the injection passage 22 to spray the fire water.

The fine atomization pipe 40 is a pipe which is integrally formed at the tip of the distribution pipe 20 and communicates with the first and second fine atomization flow paths 24 and 26. The atomizing pipe 40 passes the fire water introduced through the first and second atomizing flow paths 24 and 26 toward the atomization hole 48 formed in the nozzle head 44.

The injection pipe 42 is a pipe communicating with the injection passage 22 formed in the distribution pipe 20 in a state of being located inside the fine atomization pipe 40. The injection pipe 42 passes the fire fighting water introduced through the injection passage 22 toward the injection hole 46 formed in the nozzle head 44.

The nozzle head 44 is coupled to the distal end of the atomizing pipe 40 and the injection pipe 42 to discharge fire water. A plurality of atomizing holes 46 are provided on the front circumferential surface of the nozzle head 44. Are formed. The atomization balls 46 discharge the fire water introduced into the atomization pipe 40 in the atomization form, wherein the atomization hole 46 is formed in the spiral groove along the outer circumferential surface of the screw groove 47a Skew flow cap 47 is to be fitted. That is, the fire water introduced into the atomizing ball 46 rotates through the screw groove 47a of the screw cap 47 and causes vortex in the process of colliding with the inner circumferential surface of the atomizing ball 46 in the state having inertia force. When passing through the outlet (22a) of the atomizing ball 46 will be sprayed in the form of a water fog to suppress the fire area.

In addition, an injection hole 48 is formed at the center of the nozzle head 44. The injection hole 48 discharges the fire water introduced into the injection pipe 42 in an injection form.

Hereinafter, the operation of the low pressure large flow injection nozzle 100 according to the present invention.

4A and 4B are diagrams illustrating that the fire water is discharged in the form of atomization by opening the first and second atomization flow paths 24 and 26 of the distribution pipe 20.

As shown, when the rotary lever 10 is operated in a state in which the rotary shaft 30 is coupled to the distribution pipe 20 to rotate the rotary shaft 30 by 90 °, the first injection port 32 is excluded. , The two atomizing connecting passages 34 and 36 are in communication with the first and second atomizing passages 24 and 26 formed in the distribution pipe 20, respectively. When supplied to the fire, the supplied fire water is introduced into the atomizing pipe 40 through the first and second atomizing passages 34 and 36 in communication with the first and second atomizing passages 24 and 26. After that, it is sprayed to the outside in the form of a water fog through the fine spray hole 48 of the nozzle head 44 to extinguish the fire.

5A and 5B are views illustrating the fire flow of the distribution pipe to be discharged in the form of fine spray.

As shown in the drawing, when the rotary lever 10 is operated to rotate the rotary shaft 30 coupled to the distribution pipe 20 by 180 °, the first and second fine spray connection passages 34 and 36 of the rotary shaft 30 are rotated. Except for the injection connection flow path 32 is in communication with the injection flow path 22 formed in the distribution pipe 20, in this state when the fire water is supplied to the distribution pipe 20, the supplied fire water is sprayed After flowing into the injection pipe 42 through the injection connection passage 32 in communication with the flow passage 22, it is discharged to the outside through the injection hole 46 of the nozzle head 44 to extinguish the fire. .

1 is an exploded perspective view showing the configuration of a low pressure large flow nozzle according to a preferred embodiment of the present invention.

FIG. 2 is a cross-sectional view showing the assembling structure of the low pressure large flow jet nozzle shown in FIG. 1; FIG.

3 is a three-dimensional view showing an extract of the distribution pipe shown in Figure 2 and the rotating plate fitted to the distribution pipe.

Figure 4a is a three-dimensional view showing a state of use for fine spraying fire water in the low pressure large flow injection nozzle of the present invention.

4B is a cross-sectional view of FIG. 4A.

Figure 5a is a three-dimensional view showing a state of use for injecting fire water in the low pressure large flow injection nozzle of the present invention.

5B is a cross-sectional view of FIG. 5A.

             <Description of the symbols for the main parts of the drawings>

10: rotary lever 14: fire water supply pipe

20: distribution pipe 22: injection flow path

24: 1st atomization euro 26: 2nd atomization euro

30: axis of rotation 32: injection connection flow path

34: first atomizing connection euro 36: second atomizing connection euro

38: knob 40: atomization pipe

42: injection pipe 44: nozzle head

Claims (1)

In low pressure large flow injection nozzle, It is connected to the fire hose 12 and the inside of the "b" type injection flow path 22 and the injection flow path 22 with the first and second injection connection flow paths 24 and 26 of the straight form on the upper and lower sides therebetween. Distribution pipes 20 each of which is formed; Rotatably coupled to the distribution pipe 20 and penetrating through the injection passage 22 and the first and second atomization passages 24 and 26 to the injection passage 22 and the first and second atomization passages 24, A rotating shaft 30 for closing 26; A rotary lever 10 which is screwed under the rotary shaft 30 and rotates the rotary shaft 30 in the forward and reverse directions; The injection connection is formed through the rotation shaft 30 at a predetermined interval and selectively communicates with the injection flow passage 22 and the first and second atomization flow passages 24 and 26 closed according to the rotation operation of the rotation shaft 30. A flow path 32 and first and second atomized connection flow paths 34 and 36; A fine atomization pipe (40) integrally formed at the tip of the distribution pipe (20) and allowing fire water to flow through the first and second fine atomization passages (24, 26); An injection pipe 42 installed in the atomization pipe 40 and passing fire water introduced through the injection passage 22; A spraying hole 48 which is coupled to the distal end of the spraying pipe 40 and discharges the fire fighting water passing through the spraying pipe 40 in a spraying form, and the fire fighting water passing through the spraying pipe 42. A nozzle head 44 having a spray hole 46 for discharging in a spray form; A knob (38) coupled to an end of the rotating shaft (30) exposed to the upper surface of the distribution pipe (20) to rotate together with the rotating shaft (30); Low pressure large flow rate injection nozzle, characterized in that the upper surface of the knob 38 is formed by further forming a display portion (38a).

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