KR100709383B1 - shaking proof device of fire hose - Google Patents

Abstract

The present invention relates to a fire hose coupling for preventing the coupling, having a hollow one end is coupled to the end of the fire hose or fire hose, and is formed to be coupled to the hose connector formed with a coupling screw thread and the other end and The main body which can be screwed together and the water sprayed at high pressure through the fireman's window are rotatably installed in the hollow of the main body to prevent the fire hose from swinging in the shape of meandering. The cutting spherical rocking member which is formed in the open shape, and the inner side of the cutting spherical rocking member is provided with the rocking | fluctuation rotating body which has the balance adjustment piece extended in the open side direction and symmetrically partitions the inner surface of the cutting spherical rocking member. . According to such a fire hose coupling device for connecting the fire hose, the fire hose or the fireman's window can be prevented from shaking in a meandering shape by water sprayed at high pressure while being able to be used between the fire hose and the fireman's window. The member can be forcibly rotated from the outside to block the injection of water.

Description

Shaking proof device of fire hose

1 is an exploded perspective view illustrating an anti-sway coupler that may be coupled between a hose connector and a firefighter window according to the first embodiment of the present invention;

FIG. 2 is a partial excerpted sectional view of the anti-shake coupling device of FIG. 1;

Figure 3 is a partially cut perspective view showing the anti-sway pivoting body of the anti-slip coupler of Figure 1,

Figure 4 is an exploded perspective view showing an anti-sway coupler that can be coupled between the hose and the firefighter window according to a second embodiment of the present invention,

5 is a cross-sectional view of the anti-slip coupler of FIG.

Figure 6 is a cross-sectional view showing a rocking prevention coupling according to a third embodiment of the present invention,

FIG. 7 is an exploded perspective view partially illustrating some elements to explain a coupling structure of the opening and closing operator and the first hinge pin of FIG. 6.

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

10: Fire Hose 13: Hose End Connection

20: Unstable coupling 21: Main body

22: main body 23: first connector

26: 2nd connector 30: Unstable rotation body

50: firefighter window

The present invention relates to a fire hose coupling device for connecting a fire hose, and more particularly, to a fire hose coupling device for preventing a fluctuation of a fire hose when spraying water at high pressure through a fire pipe window.

As a representative of the fire extinguishing facility or the fire extinguishing equipment, the water supplied from the fire hydrant or the fire truck can be sprayed through the fire hose and the fireman's window.

The fireman's window of the fire extinguishing facility has a structure that can control the opening and closing amount of the nozzle so that the sprayer can directly hold and spray high-pressure water to the target fire object, domestic patent publication No. 1997-0058739, utility model Patent No. 0243380, Patent Utility Model No. 20-0313917 and the like are variously disclosed.

However, when the high pressure water supplied from the fire hydrant or the fire truck is injected through the firefighter window, the firefighter window swings due to the imbalance of the water pressure distribution in the fire hose. Therefore, the sprinkler must hold the firefighter's window with considerable force to restrain the firefighter's swing force, and not only the physical strength is consumed, but also the sprayer's swinging movement can damage the sprayer if the firefighter's window is missed during spraying. There is such a problem.

The present invention was devised to solve the problems described above, the fire hose coupling rocking to increase the stability while reducing the stamina consumption for the support of fire pipes by suppressing the shaking of the fire lake when spraying water at high pressure The purpose is to provide a preventive coupling.

Still another object of the present invention is to provide an anti-shake coupling device for connecting a fire hose that can control the presence or absence of water to the fireman's window.

In order to achieve the above object, the anti-vibration coupler for connecting a fire hose according to the present invention has a hollow and one end is coupled to a fire hose or a fire hose end and is formed to be coupled with a hose connector having a coupling thread. The other end is rotatably installed in the hollow of the main body so as to prevent the fire hose from swinging in the shape of meander by water sprayed at high pressure through the firefighter window and the main body which can be screwed with the firefighter window. Balanced adjustment for symmetrically partitioning the inner side of the cutting spherical rocking member extending in the open side direction in the inner center of the cutting spherical rocking member and the upper and lower portions and the side portion is formed in an open shape It is provided; a rocking prevention rotating body having a piece.

Preferably, the balance adjustment piece further comprises a semi-circular groove formed to be introduced into the center of the open side adjacent to the center of rotation of the cutting spherical rocking member.

In addition, the cutting spherical rocking member is a letter c-shaped in the shape of a sphere having a top and bottom cut through the hollow through the side portion parallel to the extending direction of the hollow cut along the hollow extending direction The main body is formed by the first and second hinge pins are formed such that the cutting length of the side is 1/3 or more and less than 1/2 of the circumference of the sphere, and the direction perpendicular to the extending direction of the hollow becomes a pivot center line. It is preferable to be rotatably coupled to.

More preferably, an opening and closing manipulator coupled to the first hinge pin to forcibly rotate the swing preventing pivot body outside the main body is further provided, and the inside of the main body is configured according to the rotation angle of the swing preventing pivot body. It is formed to have a stepped inner diameter so that the hollow of the main body can be opened and closed by the outer peripheral surface of the swing preventing body.

According to an aspect of the present invention, the first hinge pin has a first portion rotatably protruding outward from the main body, the first portion has a short axis and a longitudinal axis different in aspect ratio of the cross section in a direction perpendicular to the longitudinal direction. It is formed in a shape having, the locking key groove is formed on the outer circumferential surface, the opening and closing operation is the first portion of the first hinge pin is inserted into a predetermined depth, but the predetermined distance along the longitudinal direction of the hollow of the main body selectively The advance groove is formed, wherein the advance groove is in communication with the first groove, the first groove having a rotatable inner diameter, the first groove is wider than the width in the minor axis direction of the first portion and the width in the major axis direction Rather than having a second groove formed to extend a predetermined length in a short width, the side is opened to the advance groove so that the key member can be inserted into the locking key groove formed in the first portion A fitting operation hole is formed to be formed therein, and a fitting jaw is formed in the main body to be fitted with a part of the second groove, and the opening and closing operation is fitted to the fitting jaw. In the state where the first rotation part is inserted into the second groove by freely rotating in the first groove of the opening / closing operation device and moving the opening / closing operation device in a direction to be separated from the fitting jaw, the swing preventing rotation body is the opening / closing operation device. It can be linked with.

More preferably, the first portion is mounted with a spring and a ball elastically supported by the spring in the insertion groove formed in a predetermined depth in the center, the ball is drawn in a predetermined depth on the upper surface of the first groove of the opening and closing operation Constraints are formed to be possible.

According to another aspect of the present invention, the main body has a main body having a first connector with a predetermined length of the screw thread is formed on the outer circumferential surface of the main body is provided with the oscillation preventing rotating body therein and can be screwed with the firefighter window at one end; And a second connector coupled to the main body detachably by screwing with an inner side of the other end of the main body, and having a screw thread formed on an inner circumferential surface thereof to be screwed by screwing with the hose connector.

Hereinafter, with reference to the accompanying drawings will be described in more detail the anti-shake coupling for fire hose connection according to an embodiment of the present invention.

1 is an exploded perspective view showing a coupling structure of the anti-slip coupler, the fire hose connector and the firefighter window according to an embodiment of the present invention, Figure 2 is a partial extraction coupling cross-sectional view of the anti-sway coupler of Figure 1, Figure 3 Partially cut perspective view of the anti-sway pivoting body of the anti-sway coupler of FIG.

Referring to Figures 1 to 3, the fire hose coupling coupling member 20 is coupled by a screw coupling between the hose connector 13 and the fireman window 50 coupled to the end of the fire hose (10). It is formed to be. Reference numeral 16 is a protruding rib formed to protrude from the main body 14 of the hose connector 13 to facilitate the rotation operation.

The fire hose coupling coupling member 20 for connection is provided with a main body 21 and a swing prevention pivot 30.

The main body 21 has concentrically arranged first and second hollows 21a and 21b with mutually different inner diameters, and both ends thereof may be coupled to the connector 13 of the firefighter window 50 and the fire hose 10. Formed.

When the main body 21 is divided into relatively rotated elements, the main body 22 is composed of a main body 22 and a second connector 26.

The main body 22 has a first hollow 21a and has a first connector 23 having a male thread 23a formed at one end thereof, and the other end thereof is rotatably coupled to the second connector 26. have.

The main body 22 is formed with a first fitting groove 24 into which the snap ring 28 is inserted, and the snap ring 28 is fixed to the second connector 26 at a position corresponding to the first fitting groove 24. A second fitting groove 27 that can be inserted deeply is formed.

The second connector 26 is constrained on the outside of the main body 22 and rotatably coupled.

Inside the second connector 26, a female threaded line 26a for screwing with a threaded line 15 formed in the main body 14 of the hose connector 13 of the fire hose 10 is formed. Reference numeral 41 is a leak preventing packing member.

In the second hole 21b of the second connector 26, a pivot support groove 25 into which the second hinge pin 32 of the swing preventing pivot 30 is inserted is formed.

Preferably, an opening / closing manipulator 29 that adjusts the rotational angle of the swing preventing pivot 30 on the outside of the main body 21 is provided.

In the illustrated example, although the first connector 23 is coupled to the fireman's window 50 and the second connector 26 is screwed to the hose connector 13, the connector 13 of the fire hose 10 is illustrated. ) Has a female thread and the firefighter window 50 has a male thread, it may be used in the opposite direction.

In addition, if the second connector 26 is rotatable in the main body 22 as in the illustrated example, it is possible to suppress the twisting of the fire hose 10. The rotatable coupling structure of the main body 22 and the second connector 26 may be applied to various known structures other than the illustrated structure.

Alternatively, the main body 22 and the second connector 26 may be applied to the structure formed integrally to be fixed to each other.

Reference numeral 43 is a protruding rib formed to protrude at an interval on the outer surface of the second connector 26 to facilitate the rotation of the second connector 26.

The swinging rotational body 30 includes a hinge pin 31, a cutting spherical swinging member 33, and a balance adjusting piece 35.

The cutting spherical swinging member 33 is formed in the shape of a hollow cutting sphere whose top, bottom, and side portions are open. To explain this in more detail, the cutting spherical rocking member 33 has a shape in which a hole having a hollow penetrated by cutting the upper and lower portions thereof has a side portion parallel to the extending direction of the hollow to be opened along the extending direction of the hollow. It is formed in English letter c shape. Further, the length of the arc of the outer circumferential surface of the cutting spherical rocking member 33 having the open end 33a on the side surface is preferably applied to 1/2 or more and 2/3 or less of the circumference of the sphere. That is, the length of the cut arc is preferably applied to 1/3 or more and 1/2 or less of the circumference of the sphere.

In addition, of course, the outer surface of the portion on which the hinge pin 31 is mounted may be surface-treated to reduce the space occupied in the main body 21 of the cutting spherical rocking member 33.

The first and second hinge pins 31 and 32 are formed to protrude a predetermined length at positions that are centered in the vertical direction on outer peripheral surfaces on the same separation distance from both open ends 33a of the cutting spherical rocking members 33, respectively. have.

The first hinge pin 31 is coupled to the open and close operator 29 described.

The balance adjusting piece 35 protrudes in a semicircular disk shape along the inner circumferential surface so as to symmetrically divide the inner surface of the cutting spherical rocking member 33 at the inner central portion of the cutting spherical rocking member 33. It has a structure which has the semicircular groove 36 drawn inward in the center of the open end 33a of the direction which connects the (32). The semicircular groove 36 may be omitted.

The swing-left pivotal body 30 of this structure is coupled so that the direction crossing the second hollow 22a of the main body 21 becomes the center of rotation.

On the other hand, the first hollow 21a leading to the first connector 23 is closed by the outer circumferential surface of the oscillating outer body 30 according to the rotation angle of the balance adjusting piece 35 of the oscillating anti-rotating body 30. The passage in the main body 21 is formed in a stepped structure in which the first hollow 21a has a smaller inner diameter than the second hollow 21b. That is, the inner diameter of the second hollow 21b, on which the anti-rotation pivot 30 in the second connector 26 of the main body 21 is installed, is formed so that the anti-rotation pivot 30 can be rotated. The first hollow 21a is the first hollow when the outer circumferential surface of the swing preventing pivot 30 is positioned in a direction parallel to the extending direction of the first hollow 21a. It is formed to have an inner diameter capable of closing 21a.

Hereinafter will be described the operation when the high-pressure water is sprayed in the state that the anti-sway coupling device 20 is equipped between the anti-sway pivot 30 is coupled between the fire hose 10 and the fireman's window (50). .

When there is no inflow of water in the state in which the rocking prevention coupling tool 20 is installed between the fire hose 10 and the firefighter window 50, the rocking prevention pivot 30 is independent of the inclination direction of the firefighter window 50. The semi-circular groove 36 of the balance adjusting piece 35 is positioned upward with respect to the line connecting the hinge pins 31 so that the center of gravity is located downward.

Then, when the high-pressure water is introduced through the fire hose 10 in a state in which the firefighter window 50 is inclined in the desired projection direction, as shown in Figure 2 so that the introduced water can be discharged as much as possible The balance adjustment piece 35 is rotated so that it may stand in the direction orthogonal to the extending direction of (21a) (21b). Since the repulsive force at the time of spraying water through the firefighter window 50 is applied to the balance adjusting piece 35 in the direction opposite to the water projection direction, the cutting spherical rocking member 33 to balance the force between the spraying direction and the reaction direction of water. The balance adjusting piece 35 is inclined at an appropriate angle.

The balance adjustment piece 35 of the cut spherical rocking member 33 cancels the repulsive force generated when the water flows out through the firefighter window 50, thereby suppressing rocking.

In addition, when you want to stop the ejection of water, the opening and closing operation unit 29 may be rotated.

On the other hand, in the above description has been described a fire hose coupling coupling 20 for the fire hose connection that can be used in combination between the hose connector 13 and the fireman window 50 coupled to the end of the flexible fire hose 10, Unlike this, a structure that can be directly coupled to the fireman's window can be applied by installing the anti-rotation pivot on the hose connector.

This will be described with reference to FIGS. 4 and 5. Elements having the same function as in the above-described drawings are denoted by the same reference numerals.

Referring to the drawings, the anti-vibration coupler 120 has a structure that can be connected to the fire hose 10 at one end and the fire pipe window 50 at the other end.

That is, the second connector 126 of the main body 121 has a structure having a coupling groove 126a capable of engaging the fire hose 10 by the adhesive agent instead of the screw thread described above.

Unlike the illustrated example, the structure of the second connector 126 for coupling the fire hose 10 may be applied to a variety of well-known structures for fitting the fire hose 10.

On the other hand, according to the operation of the opening and closing the control unit can be configured to be rotated relative to the free rotation or restrained rotational rotation relative to the opening and closing operator is of course.

An example of the swing preventing coupler of this structure is shown in FIGS. 6 and 7.

Referring to the drawings, the shaking prevention coupler 220 is provided with an opening and closing manipulator to be advanced to the main body 221.

The main body 221 has a structure having a main body 223 and a second connector 226 that can be separated from each other.

The main body 223 has first and second hollow holes 221a and 221b having stepped inner diameters, and at one end, a first connector having a predetermined length of a screw line on an outer circumferential surface thereof so as to be screwed with the firefighter window 50. 223 is formed. The inner side of the first connector is provided with a sealing packing member 242 for sealing with the outer circumferential surface of the inner circumferential groove when the swing preventing body 230 rotates in the direction of closing the first hollow 221a.

In addition, the other end of the main body 222 is formed with a screw thread that can be screwed with the second connector 226.

The second connector 226 is coupled to the main body 222 by a screw thread and a screw thread formed on the inside of the other end of the main body 222, and screwed by the hose connector 13 and screwed on the inside The thread is formed on the inner circumferential surface. Unlike the illustrated example, when the fire hose 10 is directly coupled as described above, the thread formed on the inner side of the second connector 226 may be omitted, and the fire hose 10 may be coupled to the portion.

The second connector 226 is formed to have a locking rib 226b extending in the direction in which the inner diameter is narrowed. The locking ribs 226b may be formed to have a passage narrower than the outer diameter of the anti-rotation pivot body 230 so as to suppress the deviation of the anti-rotation pivot body 230. A sealing packing member 241 is mounted on the jaw formed inside by the locking ribs 226b.

The main body of such a structure can improve the assemblability of the anti-sway pivot 230.

The main body 222 may insert the first and second hinge pins 231 and 232 coupled with the swing preventing pivot 230 along a direction perpendicular to the extending direction of the hollows 221a and 221b. Through-holes are formed. The second hinge pin 232 is formed to be fitted by screwing through the through-hole in the fitting groove formed to be inserted into the swing-resistant pivoting body 230.

The first hinge pin 231 extends a predetermined length to the outside of the main body 221.

One end of the first hinge pin 231 is asymmetrical shape is fitted into the fitting groove formed to correspond to the anti-swivel rotational body 230 is interlocked with the anti-rotational pivot 230.

Reference numeral 277 denotes an o-ring for sealing.

The first portion 231a of the other end direction rotatably protruded to the outside of the main body 221 of the first hinge pin 231 is formed in a shape having a short axis and a longitudinal axis having a different aspect ratio in a cross section perpendicular to the longitudinal direction. The locking key groove 231b is formed. In the illustrated example, the first portion 231a has a structure in which the cylinders are cut out side by side in parallel to each other, and it is, of course, possible to form an ellipse or a square having different aspect ratios from the illustrated example.

In addition, the opening and closing operation unit 260 has a recess 261 is formed so that the first portion 231a of the first hinge pin 231 can be inserted to a certain depth.

The receding groove 261 communicates with the annular first groove 261a having an inner diameter in which the first portion 231a is rotatable, and the width of the first portion 231a in the short axis direction (b). It has a structure having a second groove (261b) formed in a straight line wider than the width and shorter than the width (a) in the long axis direction.

In addition, the side of the opening and closing operation unit 260 is fitted into the key groove 231b formed in the first portion 231a to fit the snap ring 238 applied as a key member to the recess groove 261 and the fitting operation hole 263 ) Is formed. In the state in which the snap ring 238 is inserted into the fitting operation hole 263, the snap ring 238 may have a size that can engage the upper surface of the fitting operation hole 263.

On the outer surface of the main body 222, a fitting jaw 222c is formed to protrude so that a part of the second groove 261b may be fitted.

Therefore, in the state in which the open / close operator 260 is fitted to the fitting jaw 222c, the swing preventing pivot 230 is freely rotated in the first groove 261a of the open / close operator 260, and the open / close operator 260 In a state where the first portion 231a is inserted into the second groove 261b of the first portion 231a, the rotation of the first portion 231a is blocked in the second groove 261b. Since the swing prevention pivot 230 may be linked with the opening and closing operation unit 260.

Preferably, an insertion groove 231c into which the spring 271 can be inserted is formed in the first portion 231a so as to suppress the opening / closing operation unit 260 from the main body 222 due to an external impact. The upper surface of the first groove 261a of the opening and closing operation unit 260 is formed with a ball insertion groove 266 through which the ball 272 can be inserted in a predetermined depth. Therefore, the spring 271 and the ball 272 are inserted into the insertion groove 231c, and the opening and closing operation of the ball 272 is coupled to be inserted into the ball insertion groove 266 while being elastically supported by the spring 271 ( 260 is maintained in a rotatable engagement position with the main body 222 of the open / close operator 260 unless an external force that can overcome the elastic force of the spring 271 is applied in the advancing direction.

As described above, according to the present invention, the anti-vibration coupler for connecting a fire hose can be used in combination with the fire hose and the fire pipe window while the fire hose or the fire pipe window is swung in a meandering shape by water sprayed at high pressure. Can be suppressed, and the cutting spherical rocking member can be forcibly rotated from the outside to block the injection of water.

Claims (7)

delete It has a hollow and one end is connected to the fire hose or the end of the fire hose, and the main body is formed to be able to be combined with the hose connector formed with a coupling thread, and the other end is screwed with the firefighter window, Cutting spherical shape is formed to be rotatable in the hollow of the main body so as to prevent the fire hose to swing in the shape of meandering by the water injected at high pressure through the fire pipe window And an oscillating member having a swinging member and a balance adjusting piece extending in the open side direction at the inner center of the cut spherical rocking member and symmetrically partitioning the inner surface of the cut spherical rocking member. The balance adjustment piece further comprises a semi-circular groove formed to be introduced into the center of the open side adjacent to the center of rotation of the cutting spherical rocking member; rocking prevention coupler for connecting a fire hose. It has a hollow and one end is connected to the fire hose or the end of the fire hose, and the main body is formed to be able to be combined with the hose connector formed with a coupling thread, and the other end is screwed with the firefighter window, Cutting spherical shape is formed to be rotatable in the hollow of the main body so as to prevent the fire hose to swing in the shape of meandering by the water injected at high pressure through the fire pipe window And an oscillating member having a swinging member and a balance adjusting piece extending in the open side direction at the inner center of the cut spherical rocking member and symmetrically partitioning the inner surface of the cut spherical rocking member. The cutting spherical rocking member is formed of an English letter c-shape in which the upper and lower portions are cut into a sphere having a penetrated hollow so that a portion of the side surface parallel to the extending direction of the hollow is opened so that the hollow is opened along the extending direction of the hollow. The cutting length of the side surface is rotated to the main body by the first and second hinge pins, each of which is 1/3 to 1/2 of the circumference of the sphere, and the direction orthogonal to the extending direction of the hollow becomes the center of rotation. Anti-vibration coupling device for connecting a fire hose, characterized in that possible coupled. The method of claim 3, wherein the main body And an opening / closing manipulator coupled to the first hinge pin to forcibly rotate the swing preventing pivot body outside the main body. The inside of the main body is formed to have a stepped inner diameter so that the hollow of the main body can be opened and closed by the outer circumferential surface of the anti-swivel rotational body according to the rotation angle of the anti-swivel rotational body is a swing hose coupling device . The method of claim 4, wherein The first hinge pin has a first portion rotatably protruding to the outside of the main body, the first portion is formed in a shape having a short axis and a longitudinal axis different in aspect ratio of the cross section in a direction perpendicular to the longitudinal direction, the outer peripheral surface The locking key groove is formed in the The opening and closing operator is provided with a retraction groove which is inserted into the first portion of the first hinge pin to a predetermined depth and can be selectively retracted a predetermined distance along the longitudinal direction of the hollow of the main body, the retraction groove is the first portion And a first groove having a rotatable inner diameter, and a second groove communicating with the first groove, the second groove being extended in a predetermined length with a width wider than a width in the short axis direction and shorter than a width in the major axis direction of the first portion. An insertion hole is formed to communicate with the advance groove so that the key member can be inserted into the locking key groove formed in the first portion. The main body has a fitting jaw formed to be fitted with a part of the second groove, and the first part is freely rotated in the first groove of the opening and closing operator in the state where the opening and closing operation is fitted to the fitting jaw. Advancing the opening and closing operation in the direction to be separated from the fitting jaw, the fire hose connection, characterized in that the swing-resistant pivoting body can be interlocked with the opening and closing operation when the first portion is inserted into the second groove. Fluctuation prevention coupler. According to claim 5, The first portion is mounted to the spring and the ball elastically supported by the spring in the insertion groove formed in a predetermined depth in the center, The upper surface of the first groove of the opening and closing operation of the fire hose coupling coupling member, characterized in that the restriction groove is formed so that the ball is drawn into a predetermined depth. The method of claim 3 or 5, wherein the main body A main body having the first connector having an oscillation preventing pivot installed therein and having a predetermined length of a screw line at an outer circumferential surface thereof so as to be screwed with the firefighter window at one end thereof; And a second connector coupled to the main body detachably by screwing with an inner side of the other end of the main body and having a screw line formed on an inner circumferential surface thereof to be screwed by screwing with the hose connector. Anti-vibration fittings for connecting fire hoses.

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