KR102225118B1 - Fire hose for preventing twisting using imported connector and plugged connector - Google Patents

Abstract

The present invention relates to an anti-twisted fire hose using a water inlet connector and a plugging connector, which conveniently and rapidly connects and separates a fire hose. According to the present invention, the anti-twisted fire hose comprises: a water inlet (30) and a plugging inlet (80), respectively connected to fire hoses (50, 150), and coupled to connection grooves (123, 123a); and rotation guidance members (40, 90) for allowing the water inlet (30) and the plugging inlet (80) to be freely rotated, and fixed to a water inlet plugging coupling (120).

Description

Fire hose for preventing twisting using imported connector and plugged connector}

The present invention relates to a fire hose for preventing twisting using an imported connector and a plugged connector, and more specifically, a fire hose by preventing twisting of the fire hose through free rotation of the imported connector and the plugged connector, or automatically or manually unwinding even if it is twisted It relates to a fire hose for preventing twisting using an imported connector that prevents twisting of the body and a plugged connector.

The conventional fire hose consists of an imported connector, a plugged connector, and a fire hose connected between the imported connector and the plugged connector, as shown in Patent Registration No. 1331061 (registered on November 13, 2013).

The imported connector is fastened to the fire hydrant valve, and a pipe window or nozzle is fastened to the inlet connector.

The receiving connector is composed of an import port coupled to one end of the fire hose, and an import coupling disposed at the tip of the import port, and the import coupling is rotatably connected to the import port by a C-ring.

In addition, a female screw is formed on the inner surface of the import coupling, and the female screw is fastened with the male screw of the hydrant valve, and a rubber packing is installed at the rear end of the import port. Therefore, the tip of the fire hydrant valve is pressed in contact with the rubber packing to form a seal.

The inlet connector is formed of an inlet connected to the other end of the fire hose and a male screw formed on the outer circumferential surface of the inlet, and the male screw is fastened to a pipe window or female screw of a nozzle, and the tip of the inlet is an inlet on the side of the female thread of the pipe window or nozzle. Press while touching the rubber packing mounted on to form a seal.

These conventional fire hoses are easily assembled or disassembled when the imported coupling is rotated by inserting the female thread of the imported connector into the male thread of the hydrant valve, and when the fire hose is twisted when discharging water through such a fastening, the imported port is interposed. It should automatically prevent twisting of the fire hose by rotating relative to the imported coupling through the part.

However, if the tip of the male screw applies a large pressure to the rear end of the import port, the hydrant valve and the import port are in a fixed state that does not rotate, and if the fire hose is twisted, it will continue to twist. do.

The same occurs when the first fire hose and the second fire hose have to be increased in length depending on the fire area, and the first and second imported connectors are fastened together. .

That is, when the first plug of the first fire hose and the second plug of the second fire hose are fastened to each other, the tip of the first plug is in contact with the second packing of the second plug due to the large pressure to be waterproof. .

Therefore, when the first fire hose or the second fire hose is in a twisted state, the second imported connector does not rotate and thus does not automatically loosen.

In order to prevent such a defect, the imported connector for preventing twisting of a fire hose includes an imported coupling in which a female screw is formed on an inner circumferential surface at the rear; An import port in which the other end of the hose is fixed at the front; An import intervening portion interposed between the outer circumferential groove formed on the outer circumferential surface of the import port and the inner circumferential groove formed on the inner circumferential surface of the import coupling, and allowing a relative rotational motion between the import port and the import coupling; Including; a packing seat portion protruding inwardly on the inner peripheral surface of the import coupling between the female screw and the inner peripheral groove, wherein the intervening portion is implemented as a ball or a snap ring.

However, since the imported intervening part made of a ball or step ring prevents twisting in a state where a number of balls are inserted in the circumferential direction, in the case of a ball, it takes time to insert the ball after forming a hole in the outer diameter, resulting in a decrease in productivity. In addition to the shortcomings, the hole supplied with the ball must be blocked, so a structure such as a screw or ring appeared on the outside, which deteriorated the product quality.

[Document 1] Patent Registration No. 1331061 (Registered on Nov. 13, 2013) [Document 2] Utility model registration number 0414982 (registered on April 20, 2006) [Document 3] Patent Registration No. 1331060 (Registered on Nov. 13, 2013) [Document 4] Patent Registration No. 1998146 (registered on July 03, 2019)

Therefore, it was conceived to solve these conventional shortcomings, and the solution of the present invention is to prevent the twisting of the fire hose regardless of whether the fire hose is used or not at the part connected through the coupling during the fastening process of connecting fire hoses. And the twisting state is easily or automatically unwound to enable twisting prevention.

Another problem of the present invention is that the inlet and the outlet to which the fire hose is connected are freely rotated through the screw-type fixing of the rotating guide member to the coupling by surrounding the guide protrusion of the inlet and the outlet, and the connection of the fire hose Its purpose is to make separation convenient and quick.

In the present invention, the water plug coupling includes an inner diameter protrusion formed on a central inner diameter, an inlet and a outlet connected to both sides, and a rotation guide member is fixed to an outer diameter of the inlet and the outlet; Each fire hose is connected and includes an inlet and an inlet coupled to the connection groove; And a rotation guide member that allows the inlet and the inlet to rotate freely and is fixed to the water-inlet coupling;
The water-intake coupling forms connecting grooves on both sides of the inner diameter protrusion in the central inner diameter, so that the inlet and the outlet are connected, and after forming a fastening space in the outer diameter direction of the connecting groove, respectively, a fastening male screw is formed on the inner diameter to guide rotation. Each member is fixed and installed so that the inlet and the inlet can freely rotate on both sides, holes are formed in the inner diameter direction on both outer diameters, fixing holes are formed in the rotation guide member, and the rotation guide member is connected to the fastening space to After making the fixing holes match, inserting a fixing pin into the hole and being fixed through the fixing hole;
The inlet and outlet have a packing groove to which the packing is fixed to the outer diameter, and a hose fixing part to which the fire hose is fixed is formed, and then a guide protrusion that is not separated by being caught by the rotation guide member at the center of the outer diameter protrudes and rotates freely. It is characterized in that it is installed so as to.

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In the present invention, the imported coupling includes a female screw and an inner diameter protrusion formed at a central inner diameter, and an import port in which a fire hose is fixed to a connection groove formed on one side, and a rotation guide member being fixed; The plugging coupling is connected to the inlet to which the fire hose is fixed to the connection groove, and after the rotation guide member is fixed, a male screw is formed on the outer diameter protruding in one direction to be fixed with the female screw, and connected between the inner and inner diameter protrusions of the male screw. But install the packing;
The rotation guide member includes a fastening female screw formed in an inner diameter and coupled with a fastening male screw in a fastening space, and a protruding engaging groove and a locking protruding part are formed in the inner diameter to surround the guide protrusion and installed so that the inlet and the inlet are freely rotated;
The inlet and the inlet have a packing groove to which the packing is fixed to the outer diameter, and a hose fixing part to which the fire hose is fixed, and then a guide protrusion that is caught by the rotating guide member and is not separated from the central part of the outer diameter protrudes freely. It includes being installed to rotate;
In the plug coupling, a male screw connected to the female screw of the pipe window nozzle is formed on one outer diameter, and a fastening space is formed in the outer diameter direction of the connection groove, and then a fastening male screw is formed on the inner diameter, and after the rotation guide member is coupled, the outlet is freely rotated. It is characterized in that it is formed to be.

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The present invention is to prevent the fire hose from being twisted by freely rotating an imported coupling to which a fire hose is connected and a coupling coupling and a connection between the fire hose to prevent leakage of water based on the coupling. .

The present invention makes it easy to connect the imported connector and the inlet connector connected to both sides in one coupling, and the fire hose can be freely rotated in a connected state, so that the connection state with the fire hose is twisted due to any external force or various situations. Even in the case of loosening, it is provided with an effect of preventing twisting by loosening it automatically or manually.

The present invention guides the rotation of the inlet and the inlet through a rotation guide member coupled to the inlet coupling and the inlet to prevent twisting, and it is easy to fix and separate through screw-type coupling and separation in the form of a nut. It is to provide the effect of combining and separating easily.

1 is a cross-sectional view of a connection state showing a preferred embodiment of the present invention
Figure 2 is an enlarged cross-sectional view of the water-intake coupling of the present invention
Figure 3 is an enlarged cross-sectional view of the rotation guide member of the present invention
Figure 4 is an enlarged cross-sectional view of the inlet and outlet of the present invention
5 is a cross-sectional view of a state in which the fire hose of the present invention is connected
6 is an enlarged cross-sectional view of the imported coupling of the present invention
7 is an enlarged cross-sectional view of the plugging coupling of the present invention
8 is an enlarged cross-sectional view of another embodiment of the water-reduction coupling of the present invention.
9 is an enlarged side cross-sectional view of another embodiment of the water-receiving coupling of the present invention.
10 is an enlarged cross-sectional view showing another embodiment of the import connector of the present invention
11 is an enlarged cross-sectional view of a main part showing another embodiment of the plug connection of the present invention
12 is an enlarged side cross-sectional view of the main part of the imported connector and the plug connector of the present invention

With respect to the embodiments of the present invention posted in the text, specific structural or functional descriptions are exemplified only for the purpose of describing the embodiments of the present invention, and the embodiments of the present invention may be implemented in various forms. It should not be construed as being limited to the embodiments described in.

In the present invention, various modifications may be made and various forms may be applied, and specific embodiments will be illustrated in the drawings and described in the text. However, this is not intended to limit the present invention to a specific form disclosed, it should be understood to include all changes, equivalents, or substitutes included in the spirit and scope of the present invention. In describing each drawing, similar reference numerals have been used for components.

Terms such as first and second may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another component. For example, without departing from the scope of the present invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

When a component is referred to as being "connected" or "installed" to another component, it is understood that it may be directly connected to or installed with the other component, but other components may exist in the middle. It should be.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present application, terms such as "include" or "have" are intended to designate the presence of specified features, numbers, steps, actions, components, parts, or a combination thereof, but one or more other It is to be understood that it does not preclude the presence or addition of features, numbers, steps, actions, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein including technical or scientific terms have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms as defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessive formal meaning unless explicitly defined in this application. Does not.

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

1 is a cross-sectional view of a connection state showing a preferred embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view of the water plug coupling of the present invention, FIG. 3 is an enlarged cross-sectional view of the rotation guide member of the present invention, and FIG. 4 is the present invention It shows an enlarged cross-sectional view of the inlet and the inlet of.

The fire hose 300 according to a preferred embodiment of the present invention is coupled to the water-cut coupling 120 connecting the fire hoses 50 and 150 to both sides;

The water plug coupling 120 has an inner diameter protrusion 122 formed at an inner diameter in the center, and connection grooves 123 and 123a are formed on both sides thereof, and a fastening space 124 in the outer diameter direction of the connection grooves 123 and 123a. It is to form a fastening male screw (125, 125a) with an inner diameter or an outer diameter on 124a).

The connection groove (123, 123a) is coupled to the inlet (30) and the inlet (80), and the rotation guide member (40, 90) is inserted into the outer diameter of the inlet (30) and the outlet (80) to be fastened. The female screws 41 and 91 are screwed with the fastening male screws 125 and 125a of the fastening spaces 124 and 124a to wrap around the guide protrusions 34 and 84 so that they are not separated and freely rotated.

The guide protrusions 34 and 84 of the inlet 30 and the inlet 80 and the protruding locking grooves 42 and 92 of the rotation guide member 40 and 90 are formed to meet each other in a straight or semicircular shape to protrude. In the locking grooves (42, 92), the guide projections (34, 84) are coupled to rotate freely.

The inlet 30 and the outlet 80 form one or a plurality of packing grooves 32 and 82 on the outer diameter of the protruding portion that is coupled to the connection grooves 123 and 123a, so that the packings 33 and 82 are fixed. To maintain watertightness, and guide protrusions (34, 84) protrude from the outer diameter of the central part to be caught by the rotation guide members (40, 90) and rotate without being separated, and hose fixing parts (31, 81) on the outside To fix the fire hose (50, 150).

The rotation guide member (40, 90) is formed with fastening female screws (41, 91) and screwed with the fastening male screws (125, 125a) of the fastening space (124, 124a), and protruding from the inner diameter of the engaging groove (42, 92). ) And engaging protrusions (43, 93) are formed to wrap the guide protrusions (34, 94) from the outside to prevent separation from the connection grooves (123, 123a) of the water plug coupling (120) and to be installed so that rotation can be made freely. will be.

The guide protrusions 34 and 84 of the inlet 30 and the inlet 80 and the protruding locking grooves 42 and 92 of the rotation guide member 40 and 90 are formed to meet each other in a straight or semicircular shape to protrude. In the locking grooves (42, 92), the guide projections (34, 84) are coupled to rotate freely.

The rotation guide member (40, 90) is quickly and firmly fixed to the water plug coupling (120), forming a knurling in the outer diameter to facilitate separation, or forming a hexagon, such as a nut shape to use a ranch tool. It is possible to make it possible.

Figure 5 is a cross-sectional view of a state connected to the fire hose of the present invention, Figure 6 is an enlarged cross-sectional view of the imported coupling of the present invention, Figure 7 is an enlarged cross-sectional view of the borrowed coupling of the present invention.

The fire hose 300 is made of an imported coupling 20 and a leveraged coupling 70 for connecting the fire hoses 50 and 150 to both sides;

The inlet 30 and the rotation guide member 40 connected to the import coupling 20, the inlet 80 and the rotation guide member 90 connected to the insertion coupling 70 are shown in FIGS. 1 to 4 It is the same as the description of, so it will not be described separately, and the import coupling 20 and the leveraged coupling 70 will be described.

First, the imported coupling 20 has an inner diameter protrusion 22 protruding at the center of the inner diameter and separated into both sides, and then a female thread 21 is formed in the inner diameter of the portion where the male screw 71 of the insertion coupling 70 is coupled, A connection groove 23 is formed in a portion to which the import port 30 is connected, and a fastening space 24 to which the rotation guide member 40 is coupled in the outer diameter direction of the connection groove 23 is formed, and then the fastening space ( The fastening male screw 25 is formed on the inner or outer diameter of 24).

The plugging coupling 70 is a connection packing 130 is inserted between the imported coupling 20 and the male screw 71 formed in the outer diameter is screwed and fixed with the female screw 61, and the connection groove of the inner diameter The inlet 80 is coupled to the 73, and after the fastening space 74 is formed in the outer diameter direction in the connection groove 73, a fastening male screw 75 is formed in the inner or outer diameter, and the rotation guide member 90 is coupled. It is to be coupled so that the inlet 80 is freely rotated.

8 is an enlarged cross-sectional view of another embodiment of the water retractable coupling of the present invention, and FIG. 9 is an enlarged side cross-sectional view of another embodiment of the water retractable coupling of the present invention.

Holes (28, 78) in the outer diameter of the water plug connector 120 in a state in which the rotation guide members (40, 90) are coupled to the fastening spaces (124, 124a) formed in the water plug connector (120) of the fire hose (300) It is possible to fix the rotation guide members 40 and 90 so that they cannot move after passing through the fixing holes 48 and 98 by inserting the fixing pin 160 on it.

The fastening male screws 125, 125a are formed or not formed in the fastening spaces 124, 124a, and the fastening female screws 41, 91 are formed or not formed in the inner diameter of the rotation guide members 40, 90. After coupling, fixing holes (48, 98) are formed in the rotation guide members (40, 90), and holes (28, 78) are formed in the water plug coupling 120 that match the fixing holes (48, 98) to be fixed. It is possible to fix the pin 150 so that the holes 28 and 78 and the fixing holes 48 and 98 are matched so that they are not separated.

The holes 28 and 78 are formed so as to reach the portion past the fastening spaces 124 and 124a starting from the outer diameter of the water plug coupling 120 so that they are fixed through the rotation guide members 40 and 90. .

Figure 10 is an enlarged cross-sectional view showing another embodiment of the import connector of the present invention, Figure 11 is an enlarged cross-sectional view showing another embodiment of the borrowed connector of the present invention, Figure 12 is the import connector and the borrowed connector of the present invention It is a side cross-sectional view showing an enlarged main part of Korea.

In the fastening spaces 24, 74 of the imported coupling 20 of the imported connector 100 and the plugging coupling 70 of the plugging connector 200, male fastening screws 25, 75 are formed to rotate the guide member 40, It is possible to fix so as to prevent movement by driving the fixing pin 150 at the outer diameter of the imported coupling 20 and the leveraged coupling 70 in a combined state 90).

Without forming the fastening male screws (25, 75) in the fastening spaces (24, 74), and without forming the fastening female screws (41, 91) in the inner diameter of the rotation guide member (40, 90), and then guide rotation Fixing holes (48, 98) are formed in the members (40, 90), and holes (28, 78) are also formed in the imported coupling (20) and the plugging coupling (70) that match the fixing holes (48, 98). By forming the fixing pin 150, the holes 28 and 78 and the fixing holes 48 and 98 coincide with each other to be fixed so that they are not separated.

The holes 28 and 78 start from the outer diameters of the import coupling 20 and the borrow coupling 70 and reach the portion past the fastening spaces 24 and 74, thereby forming the rotation guide members 40 and 90. It is to be fixed through it.

The present invention made in such a configuration is to install a water plug connector 120 to which fire hoses 50 and 150 are connected to both sides, as shown in FIGS. 1 to 4,

By inserting the packing 33 into the packing groove 32 of the import port 30 to which the fire hose 50 is connected, it is coupled to the connection groove 123 of the water plug coupling 120, and the outer diameter of the import port 30 When the rotation guide member 40 is inserted and the fastening female screw 41 is threadedly coupled with the fastening male screw 125 of the fastening space 124, the protruding groove 42 and the locking protrusion 43 are guided by the guide protrusion 34 ) Is moved in the direction of the water plug coupling 120 and moves while pressing it, and the assembly is completed when the guide protrusion 34 contacts the water tap coupling 120 and tightens so that it cannot enter any more.

After the connection of the fire hose 50 is completed in the hydraulic coupling 120, the fire hose 150 on the other side is connected,

The packing 83 is inserted into the packing groove 82 of the outlet 80 to which the fire hose 150 is connected, coupled to the connection groove 123a of the water plug coupling 120, and the outer diameter of the outlet 80 When the rotation guide member 90 is inserted and the fastening female screw 91 is screwed with the fastening male screw 125a of the fastening space 124a, the protruding groove 92 and the locking projection 93 are guided by the guide projection 84 ) Is moved in the direction of the water-intake coupling 120 and moves while pressing it, and when the guide protrusion 84 contacts the water-intake coupling 120 and tightens so that it cannot enter any more, the assembly is completed.

Then, water leakage is prevented between the fire hoses (50, 150) through the coupling of the water plug coupling (120), and the fixed state is maintained, and the rotation guide members (40, 90) are provided with the import port (30) and the outlet port. By holding the 80 in the circumferential direction, the inlet 30 and the inlet 80 are not separated from the water plug coupling 120, and even if the fire hoses 50 and 150 are twisted, the guide protrusions 34 and 84 ) Is supported by the locking projections (43, 93) in the protruding locking grooves (42. 94) so that they can rotate freely, so that when the fire hoses (50, 150) are twisted, they can automatically or easily return to their original state to prevent twisting. It is done.

And as shown in Figs. 5 to 7, the fire hose 50 is connected to the imported coupling 20, and the fire hose 150 is connected to the plugged coupling 70,

By inserting the packing 33 into the packing groove 32 of the import port 30 to which the fire hose 50 is connected, coupled to the connection groove 23 of the import coupling 20, and at the outer diameter of the import port 30 When the rotation guide member 40 is inserted and the fastening female screw 41 is screwed together with the fastening male screw 25 of the fastening space 24, the protruding groove 42 and the locking protrusion 43 are guided by the guide protrusion 34 The assembly is completed when the guide protrusion 34 contacts the imported coupling 20 and is tightened to such an extent that it can no longer be entered by moving it in the direction of the imported coupling 20 and pressing it.

By inserting the packing 33 into the packing groove 82 of the inlet 80 to which the fire hose 150 is connected, it is coupled to the connection groove 73 of the inlet coupling 70, and at the outer diameter of the inlet 80 When the rotation guide member 90 is inserted and the fastening female screw 91 is threadedly coupled with the fastening male screw 75 of the fastening space 74, the protruding groove 92 and the locking protrusion 93 are guided by the guide protrusion 84. The assembly is completed when the guide protrusion 84 touches the insertion coupling 70 and tightens so that it cannot be entered any more.

After connecting the fire hose (50) to the imported coupling (20) and connecting the fire hose (150) to the intercepted coupling (70), the imported coupling (20) for connection of the fire hose (50, 150) By combining the and the leverage coupling (70),

The connection packing 130 is supplied to the inner part of the female thread 21 of the imported coupling 20 so that it contacts the inner protrusion 22, and the male screw 71 of the plugging coupling 70 is supplied to the female thread 21 and the male screw 71. ) By screwing it into place.

Then, the rotation guide members 40 and 90 hold the import port 20 and the feed port 80 in the circumferential direction through the combination of the import coupling 20 and the borrow coupling 70, and the import coupling 20 And the inlet 20 and the inlet 80 are not separated from the plugging coupling 70, and even if the fire hoses 50, 150 are twisted, the guide protrusions 34, 84 are protruded into the engaging grooves 42, 92. ), the hooking protrusions 43 and 93 are supported so that they can rotate freely, so that when the fire hoses 50 and 150 are twisted, they can automatically or easily return to their original state to prevent twisting.

In the present invention, in the process of coupling the rotation guide members 40, 90 to the fastening spaces 24, 74, 124, 124a as shown in FIGS. 8 to 12, the fastening male screws 25, 75, 125, 125a are In the state in which the fastening female screws (41, 91) are coupled through, a fixing pin (160) is inserted and fixed in the outer diameter holes (28, 78) of the water-lead coupling 120, the imported coupling 20, and the plug-in coupling 70. The rotation guide member 40, 90 is maintained so that the rotation guide member 40, 90 is not separated by being fixed through the holes 48, 98, and it is possible to guide the free rotation of the import port 30 and the inlet port 80, Outer diameter holes of the male coupling 120, the imported coupling 20, and the coupling 70 in the assembled state without the male fastening screws 25, 75, 125, 125a and female fastening screws 41, 91 By driving the fixing pin 160 at (28, 78) and fixing it through the fixing holes (48, 98), the rotation guide member (40, 90) is kept in a state so that it is not separated, and is different from the import port (30). By allowing the free rotation of the inlet 80 to be guided, the fire hoses 50 and 150 are twisted through free rotation of the inlet 30 and the outlet 80 through a simple structure using only the fixing pin 160. It is enough to be able to prevent it.

The present invention provides an inlet, an inlet, and a rotation guide member in which rotation is freely rotated at both or either side of a single coupling, such as a water-intake coupling, an import coupling, and an inlet coupling. It is a very useful invention that provides a twist prevention function that allows it to be conveniently restored to its original state even if twisting occurs while using a hose.

20: imported coupling 21, 61: female thread
22: inner protrusion 23, 73: connection groove
24, 74, 124, 124a: Fastening space 25, 75, 125, 125a: Fastening male thread
28, 78: hole 30, 80: import port
31, 81, 123, 123a: hose fixing part 32, 82: packing groove
33, 83: packing 34, 84: guide protrusion
40, 90: rotation guide member 41, 91: fastening female thread
42, 92: protruding locking groove 43, 93: locking protrusion
48, 98: fixing hole 50, 150: fire hose
71: male thread 120: water plug coupling
130: connection packing 160: fixing pin
300; Fire hose

Claims (9)

The water plug coupling 120 has an inner diameter protrusion 122 formed at the center inner diameter, and the import port 30 and the outlet 80 are connected to both sides, and the outer diameter of the import port 30 and the outlet port 80 Including that the rotation guide member (40, 90) is fixed; Fire hoses (50, 150) are connected to each of the connection grooves (123, 123a) and includes an inlet (30) and an inlet (80) coupled to; Including rotation guide members (40, 90) fixed to the water-intake coupling 120 and freely rotates the inlet (30) and the outlet (80);
The water plug coupling 120 forms connection grooves 123 and 123a on both sides of the inner diameter protrusion 122 at the center inner diameter, so that the import port 30 and the plug port 80 are connected, and the connection groove 123 , After forming the fastening spaces (124, 124a) in the outer diameter direction of the 123a), respectively, by forming the fastening male screws (125, 125a) in the inner diameter, the rotation guide members (40, 90) are each fixed to each of the import ports (30) And the inlet 80 is installed to rotate freely, and holes 28 and 78 are formed in the inner diameter direction from both outer diameters, and fixing holes 48 and 98 are formed in the rotation guide members 40 and 90, and the After connecting the rotation guide members (40, 90) to the fastening spaces (124, 124a) so that the holes (28, 78) and the fixing holes (48, 98) are aligned, the fixing pins (160) are placed in the holes (28, 78). ) Is driven through the fixing hole (48, 98) to be fixed;
The inlet 30 and the outlet 80 are formed with packing grooves 32 and 82 in which the packing 33. 83 is fixed to the outer diameter, and the hose fixing parts 31 and 81 to which the firefighting hose is fixed are formed. A fire hose for preventing twisting using an imported connector and a plug connector, characterized in that guide projections 34 and 84 that are not separated by being caught by the rotation guide members 40 and 90 at the center of the outer diameter are protruded and installed to rotate freely. .
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