KR101691080B1 - Coupling for torsion-preventive fire hose installed in building - Google Patents

Abstract

The present invention relates to a coupling for preventing torsion of a fire hose being installed in a building, and more specifically, to a coupling for preventing torsion of a fire hose being installed in a building, which enables an easy connection to a fire hose or an easy separation therefrom, and which allows torsion of the fire hose to be automatically released, thereby preventing the torsion of the fire hose, and preventing abrasion and noises caused by a friction against an interposed part in response to a rotation of a female coupling, but which also induces the coupling to smoothly rotate.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a fire hose,

[0001] The present invention relates to a connection port for preventing a fire hose from being twisted, which is installed in a building of a fire-fighting technology field, more specifically, it can be easily fastened or detached from a fire hose, To prevent twisting of the fire hose and to prevent abrasion and noise caused by friction with the interposition part according to the rotation of the female connector and to prevent the fire hose from being twisted will be.

In general, fire hoses are connected to fire engines or fire hydrants so that fire water can be supplied to the fire place.

Such a fire hose is provided with a connecting port at both ends thereof, and the connecting port is formed by a female connector having a screw and a male connector.

Korean Patent Registration No. 10-1331060 (Nov. 13, 2013) discloses a "connector for preventing fire hose kinks"

However, such conventional connection hoses for anti-twisting fire hose have problems in that smooth rotation is hampered by abrasion and noise due to friction with the interposer due to rotation of the female connector.

Korea Patent Registration No. 10-1331060 (Nov. 13, 2013) "Connector for preventing fire hose from kinking"

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a fire hose that can be easily fastened or detached from a fire hose, And to provide a connector for preventing the twist of a fire hose from being installed in a building for preventing wear and noise caused by friction with the interposer in accordance with the rotation of the female connector.

The problems to be solved by the present invention are not limited to those mentioned above, and other solutions not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above-mentioned object, the present invention provides a connector comprising: a female connector having a rear female screw formed on an inner circumferential surface thereof; A male connector having a front male screw formed on an outer circumferential surface thereof; An intervening part interposed between an inner circumferential groove formed on an inner circumferential surface of the female connector and an outer circumferential groove formed on an outer circumferential surface of the male connector so as to allow relative rotation between the female connector and the male connector, A packing seat part protruding inwardly from an inner circumferential surface of the female connector between the female screw and the inner circumferential groove, the packing part having a washer shape; And an O-ring mounted between the rear end of the water receiving port and the outer circumferential groove, wherein the oil supply portion is provided with an oil supply portion for supplying the anti-friction oil with the interposition portion, Wherein a hollow is formed to pass from the outside to the inside in which the intervening member is disposed, and the oil supply unit includes: a coupling pipe which is fitted in the hollow; And an oil cap having an outer circumferential surface fitted to the periphery of the coupling tube, wherein the oil cap is opened as it is pressed outward around the incision line, Preventing oil from being supplied to the interposing portion, and the coupling pipe is formed to extend from the outer end portion inwardly to form a flange that contacts the outer surface of the oil cap and prevents the oil cap from separating The present invention provides a connector for preventing fire hose kinks installed on a building.

According to the present invention, first, since the female connector through which the fire hose is fastened freely freely rotates with respect to the male connector through the opening, even if the fire hose tries to twist, it is automatically released and can be prevented from being twisted.

Secondly, since the packing is located at the packing seat of the female connector, even if the boring connector is applied with a great pressure to the packing due to the water pressure, the function of the intervening part can be exerted by functioning as a separating film for separating the packing seat from the male connector. If the fire hose tries to twist, it can be automatically released to prevent twisting.

Thirdly, since the friction preventing oil can be provided by the interposing portion, it is possible to prevent abrasion and noise caused by the friction with the interposing portion due to the rotation of the female connecting portion, and to induce smooth rotation .

The effects of the present invention are not limited to those mentioned above, and other solutions not mentioned may be clearly understood by those skilled in the art from the following description.

FIG. 1 is a perspective view showing a connecting hole for preventing a fire hose from being twisted and installed in a building according to the present invention, FIG.
2 is a sectional view taken along the line 2-2 in Fig. 1,
FIG. 3 is a cross-sectional view illustrating a state in which a nozzle is fastened to the nozzle fitting of FIG. 2;
FIG. 4 is a cross-sectional view illustrating a state in which a fire inlet hose for a fire hose is connected to a nozzle hanger in a connection hanger for preventing fire hose kinks installed in a building according to the present invention,
FIG. 5 is a cross-sectional view illustrating an oil supply unit in a connection port for preventing fire hose kinks installed in a building according to the present invention,
And
6 is a perspective view illustrating an oil supply unit in a connection port for preventing kinking of a fire hose installed in a building according to the present invention.

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

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. And should not be construed as limited to the embodiments described herein.

Since the embodiments according to the concept of the present invention can make various changes and have various forms, specific embodiments are illustrated in the drawings and described in detail herein.

It should be understood that the embodiments according to the concept of the present invention are not limited to the particular mode of disclosure but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

Since the present invention uses the later-described patent document No. 1331060 as it is, all the features of the device configuration described below can be understood as the matters described in the registered patent No. 1331060. [

However, the present invention is not limited to the structure disclosed in the above-mentioned Japanese Patent No. 1331060, in which the connector for preventing the twist of the fire hose is replaced with a connector for preventing the twist of the fire hose from being installed in the building, and a structure for supplying the anti- And this part is the most important constituent feature.

Therefore, the device structure, characteristics and operating relationship described below will be referred to as the contents of the above-mentioned Japanese Patent No. 1331060, and the structure related to the main features of the present invention will be described in detail at the rear end.

1 to 4, a connecting hole (hereinafter, referred to as a "connecting hole") 100 for preventing a fire hose from being twisted is installed in a building according to the present invention includes an arm, a male connector 110 and a female connector 110, And a packing seat portion 170 formed on an inner circumferential surface of the female connector 110. The female connector portion 110 may be formed of a synthetic resin.

A female screw 111 is formed on an inner circumferential surface of a rear side of the female connector 110 and a male screw 311 of a female connector 300 is fastened to the female screw 111.

An inner circumferential groove 113 is formed on the inner circumferential surface on the front side of the female connector 110 along its circumference.

A male screw 131 is formed on the outer circumferential surface on the front side of the male connector 130 and a female screw 231 of the nozzle 200 is fastened to the male screw 131.

The male connector 130 has an outer circumferential groove 133 formed on the outer circumferential surface of the rear side to face the inner circumferential groove 113.

The interposer (150) is a ball or a snap ring which is electrically powered.

In order to use the ball, a ball insertion hole (not shown) communicating with the inner circumferential groove 113 is formed in the female connector 110.

After the ball is filled in the inner and outer circumferential grooves 113 and 133 through a ball insertion hole (not shown), the ball insertion hole (not shown) is blocked with a bolt (not shown) or the like.

The inner circumferential groove 113 is a semicircle supporting the outer ring of the ball, and the outer circumferential groove 133 is a semicircle supporting the inner ring of the ball to form a single circular passage.

The front end 115 of the female connector 110 is engaged with the step 135 formed on the outer circumferential surface of the male connector 130 so that the inner and outer circumferential grooves 113 and 133 are easily aligned with each other.

Of course, the packing seat portion 170 and the rear end 137, which is the rear end surface of the water connection port 130, also serve to easily match the inner and outer circumferential grooves 113 and 133.

It is preferable that a gap is formed between the tip end 115 and the step 135 and between the packing seat 170 and the rear end 137 in a state where the interposing part 150 is interposed in the inner and outer circumferential grooves 113, It is preferable that a clearance is formed so that the female connector 110 rotates freely.

Of course, a C-shaped snap ring may be used as the interposer 150. In this case, the snap ring is inserted into the outer circumferential groove 133 of the male connection port 130, and then the female connection port 110 is pressed to be received in the inner circumferential groove 113.

The female connector 110 is rotatably connected to the male connector 130 by the interposer 150 so that the male screw 311 of the female connector 300 and the female screw 111 of the female connector 110 It is possible to simplify the fastening or disassembly by rotating the female connector 110 only.

The packing seat portion 170 is formed in a washer shape between the female screw 111 and the inner circumferential groove 113.

That is, the packing seat portion 170 is protruded inward from the inner circumferential surface of the female connector 110.

The packing seat portion 170 is provided with a washer-shaped packing 180.

Therefore, the leading end 337 of the boring connector 300 is fastened to the female connector 110 while pressing the packing 180 as shown in FIG.

When water is injected in this state, the injection pressure is applied to the boring connector 300.

However, the tip 337 of the boring connector 300 is blocked by the packing seat 170 and does not contact the rear end 137 of the male connector 130.

Accordingly, even if the fire hose 80 is twisted, the internal pressure of the fire hose 80 is automatically released through rotation of the female connector 110 with respect to the male connector 130 through the interposer 150, .

The female connector (110) and the male connector (130) are divided through the interposer (150).

A minute gap is formed between the packing seat portion 170 and the rear end 137.

If the nozzle 200 is locked and the inside of the connector 100 is filled with water, it can leak through the gap.

In order to prevent this, an O-ring 140 is further installed between the rear end 137 of the male connector 130 and the outer circumferential groove 133.

The O-ring 140 is mounted in a groove 141 formed along an outer circumferential surface of the male connector 130.

In the present invention, the structure of the oil supply part 400 for supplying the friction-preventing oil to the interposer 150 is further realized, as shown in FIGS.

The oil supply unit 400 may supply the friction-preventing oil supplied from the outside to the intervening part 150 so that the wear caused by the friction with the intervening part 150 according to the rotation of the female coupling 110 Noise and the like can be prevented while smooth rotation can be achieved.

The frictional resistance oil is supplied between the inner and outer circumferential grooves 113 and 133 and the intervening part 150 in accordance with the supply of the friction preventing oil to the intervening part 150, Can be prevented.

For this purpose, the female connector 110 is formed with a hollow 112 through which the interposer 150 is disposed from the outer side toward the inner side.

The oil supply unit 400 includes a coupling pipe 410 fitted into the hollow 112 and an incision line 421 penetrating the inner and outer surfaces of the coupling pipe 410. The oil supply unit 400 includes oil And a cap 420.

The coupling pipe 410 can be understood as a cylindrical shape made of metal.

The hollow 112 may have a thread on the inner circumferential surface thereof and the coupling pipe 410 may be screwed to the hollow 112 while forming a thread on the outer circumferential surface thereof.

The oil cap 420 extends in the longitudinal direction of the coupling pipe 410, and the inner and outer surfaces thereof form inner and outer peripheral surfaces of the female connector 110.

The inner surface of the oil cap 420 may be curved so as to be depressed in the outer surface direction, and may be in contact with the interposer 150.

This is to prevent the oil cap 420 from being drawn in due to external pressure.

The oil cap 420 may be made of rubber or silicon, and the cutout line 421 is most preferably formed in an ┼ shape.

The coupling pipe 410 may have a flange 411 extending inwardly from an outer end thereof.

It can be understood that both ends of the coupling pipe 410 are directed toward the inside and outside of the female connector 110 and the outer ends of the female connector 410 form an outer circumferential surface of the female connector 110.

The flange 411 contacts the outer surface of the oil cap 420 to prevent the oil cap 420 from being separated from the coupling pipe 410.

The oil cap 420 is opened as the oil cap 420 is pressed outward around the incision line 421 so that the anti-friction oil can be supplied to the interposer 150 from the outside.

On the other hand, the oil cap 420 is hermetically sealed by releasing the pressure to the incision line 421, so that the anti-friction oil supplied to the interposer 150 is not leaked to the outside.

For this, the oil supply unit 400 may further include a pressurizing pipe 430 at one end of which the friction-preventing oil is supplied from the outside and the other end is introduced into the cutting line 421.

It is preferable that the pressure pipe 430 has a conical shape whose diameter decreases from one end to the other end.

Accordingly, the pressure pipe 430 is drawn into the incision line 421, so that the oil cap 420 can be smoothly opened while pressing the incision surface forming the incision line 421.

The connection port 100 may be formed in such a manner that foreign matter such as metal dust generated by the friction between the inner and outer circumferential grooves 113 and 133 and the interposer 150 according to the supply of the anti- And a foreign matter discharging unit 500 for discharging foreign matter.

The female connector 110 is formed with a discharge hole 116 extending inward from the front side where the interposer 150 is disposed.

The discharge hole 116 may be formed at a position symmetrical to the hollow 112 around the center of the female connector 110.

The foreign matter discharging unit 500 may include an opening / closing cap 510 for opening / closing the hollow 112.

The discharge hole 116 is formed with a thread on the inner circumferential surface thereof and the opening and closing cap 510 can be screwed to the discharge hole 116 while forming a thread on the outer circumferential surface.

It is needless to say that various known means may be provided between the discharge hole 116 and the opening / closing cap 510, such as a milling for hermetically sealing the anti-friction oil.

The opening and closing cap 510 is opened according to the supply of the anti-friction oil to the oil supply unit 400, and allows the foreign material to be discharged to the outside through the hollow 112.

In contrast, when the opening and closing cap 510 stops discharging foreign matter through the hollow 112, the supply of the anti-friction oil to the oil supply unit 400 is stopped, The friction-preventing oil supplied to the interposer 150 is prevented from leaking to the outside.

As a result, the connector 100 can smoothly rotate the female connector 110, thereby preventing the fire hose from being twisted. In addition, according to the rotation of the female connector 110, Wear and noise generated by the friction with the rotor 150 can be prevented and smooth rotation can be induced.

80: Hose 100: End connection
110: female connector 111: female thread
112: hollow 113: inner peripheral groove
115: leading end 116: exhausting hole
130: Male connector 131: Male thread
133: outer circumferential groove 135: step
137: rear end 140: O-ring
141: groove 150:
170: Packing seat 180: Packing
190: O-ring 200: nozzle
231: female thread 300: boring connector
311: male screw 337: fleet
400: Oil supply part 410: Coupling pipe
411: Flange 420: Oil cap
421: incision line 430: pressure tube
500: foreign matter discharging part 510: opening / closing cap

Claims (1)

A female connector formed at an inner circumferential surface of a rear female screw;
A male connector having a front male screw formed on an outer circumferential surface thereof;
An intervening part interposed between an inner circumferential groove formed on an inner circumferential surface of the female connector and an outer circumferential groove formed on an outer circumferential surface of the male connector so as to allow relative rotation between the female connector and the male connector,
A packing seat part protruding inwardly from an inner circumferential surface of the female connector between the female screw and the inner circumferential groove, the packing part having a washer shape; And
And an O-ring mounted between the rear end of the water connection port and the outer circumferential groove, the connection port for preventing the fire hose from kinking,
An oil supply unit for supplying friction-preventing oil to the interposer to prevent abrasion and noise caused by friction with the interposer according to the rotation of the female connector, and to smoothly rotate the oil connector; And
And a foreign matter discharging unit for discharging foreign matter generated by friction between the inner and outer circumferential grooves and the intervening member in accordance with the supply of the anti-friction oil to the oil supply unit,
Wherein the female connector comprises:
Wherein a hollow and an exhaust hole are formed to pass from the outside to the inside in which the intervening part is disposed,
The discharge hole
A female connector having a female connector formed at a position symmetrical with the hollow,
The oil supply unit
A hollow coupling fitting tube;
An oil cap which is formed with a cutting line passing through the inner and outer surfaces and which is formed in a curved surface whose inner peripheral surface is recessed in the outer peripheral direction and whose outer peripheral surface is fitted around the coupling pipe; And
And a pressurizing pipe to which an anti-friction oil is supplied from the outside at one end and the other end is led into the cutting line,
The oil cap
Preventing oil is supplied from the outside to the intervening portion while being opened as it is pressed outward around the incision line,
Wherein the coupling tube comprises:
A flange extending from an outer end portion to an inner side of the oil cap and contacting the outer surface of the oil cap to prevent separation of the oil cap,
The foreign-
And the opening and closing cap for opening and closing the hollow.

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