KR101880756B1 - Fire fighting safety power supply device in case of architecture fire - Google Patents

Abstract

The present invention relates to a firefighting safety power supply device in case of a fire in a building, and more particularly, to a firefighting safety power supply device in case of a fire in a building, capable of easily coping with power interruption in a power supply interruption state from the outside due to a power failure, the fire, etc., and maintaining a smooth operation state through check and replacement by smoothly detaching or attaching a warning device from or to an indoor wall. The firefighting safety power supply device includes a plurality of sensing units, a control unit for operating a firefighting device part, a power supply unit for charging a battery, and an emergency power supply unit for supplying the power of the battery to the firefighting device part.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a safety power supply device for a fire in a building,

The present invention relates to a fire safety power supply apparatus for a fire in a building of a fire fighting technology field, and more particularly, to a fire fighting safety power supply apparatus capable of easily responding to a power supply cut off from the outside due to power outage or fire, The present invention relates to a fire safety power supply apparatus for a fire in a building in order to maintain a smooth operation state through inspection and replacement so that the fire extinguisher can be smoothly detached from the fire extinguisher.

Generally, a building such as a building is provided with a fire-fighting system for detecting and extinguishing a fire when it occurs.

The conventional fire fighting system as described above includes a sensing unit for sensing the occurrence of a fire, a control unit for activating the alarm device or activating the sprinkler and the fire retarding shutter when the sensing unit detects the occurrence of a fire, Fire-fighting equipment such as a sprinkler or a fire-retarding shutter.

However, the conventional fire fighting system can not easily cope with the interruption of the power supply from the outside due to power failure, fire or the like.

A fire control system control system for apartment houses is disclosed in Korean Patent Registration No. 10-1644084 (Oct.

However, it is difficult to check whether the fire-fighting system control system of the conventional apartment house maintains a state that can operate normally because it is difficult to easily disconnect the alarm device from the wall or the like on which the alarm device is installed have.

Korea Patent Registration No. 10-1644084 (2016.08.01.) 'Fire Control System for Apartment Complex'

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 make it possible to easily cope with an interruption of power supply from the outside due to power outage or fire, The present invention also provides a fire safety power supply device for a fire in a building in order to maintain a smooth operation state through inspection and replacement.

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 accomplish the above object, the present invention provides a wireless communication module installed in a room and capable of short-distance mutual transmission and reception of signals, and an alarm sound when a fire signal in a building is detected or a fire signal transmitted from another wireless communication module is received A plurality of sensing units 110 having an alarm device 117 for supplying power to the battery 110 and a battery 118 for supplying power; A controller 120 for operating the fire extinguishing system 130 by a short range wireless signal of the sensing unit 110, and a wireless communication module for wirelessly communicating with the sensing unit 110 installed in the room. A power supply unit 150 for supplying power from the outside to the sensing unit 110 and charging the battery 118 with power; And an emergency power supply unit 160 that allows the power of the battery 118 to be supplied to the fire extinguishing equipment unit 130 in response to an external power supply cutoff, A power line 151 to which the power supplied from the power line is transferred and the alarm device 117 is connected to the other end; And an auxiliary power line 152 having both ends connected to the power line 151 and connected to the battery 118 between both ends of the power line 151. The battery 118 is connected to the power line 151, The emergency power supply 160 supplies power to the alarm device 117 and the emergency power supply 160. The emergency power supply 160 is connected to the other end of the auxiliary power lead 152 and the other end of the power lead 151, An emergency power lead 161 connected to the power lead 151 so as to be positioned between the other end and connected to the fire extinguishing facility 130 at the other end; A connection switch 162 connected to the emergency power lead 161; And a power supply detection sensor connected to the power line 151 so as to be positioned between one end of the power line 151 and one end of the auxiliary power line 152, The control unit 120 controls the connection of the connection switch 162 to the connection unit 162 in response to a detection signal of the power supply detection sensor 163, A fire safety power supply device for a fire in a building where a switch 162 is tangentially connected so that the power of the battery 118 is transmitted to the fire extinguishing facility 130, The coupling unit 200 includes an arm coupling pipe 210 extending forward from the wall body W; A water tightening pipe 220 provided on a rear surface of the alarm device 117 and coupled to the inside of the arm fastening pipe 210; And a coupling unit 230 coupling the arm and the water tightening pipes 210 and 220. The arm tightening pipe 210 is formed with a pair of outer through holes 211 opposed to the upper and lower sides, A pair of inner through holes 221 opposed to the upper and the lower are formed in the male coupling pipe 220. The inner and outer through holes 221 and 211 are formed in a state where the female and male coupling pipes 210 and 220 are coupled And the coupling means (230) includes a connecting bar (231) accommodated in the male coupling pipe (220) so that both ends thereof face the pair of inner holes (221); A pair of coupling bars 232 having one end opened to be coupled to both ends of the connecting bar 231 so as to be movable in the longitudinal direction and the other end received in the inside hole 221; And a spring 233 coupled to the outside of the connecting bar 231 so as to be positioned between the pair of binding bars 232. The other end of the binding bar 232 is connected to the outside through hole 211 (210, 220) while being pulled out from the outer through-hole (211) while releasing the engagement with the arm and water tightening pipes (210, 220) Power supply.

According to the present invention, it is possible to easily cope with an interruption of power supply from the outside due to power failure, fire or the like, and also to stably protect the battery from moisture or the like.

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 conceptual view schematically showing a fire safety power supply device when a fire occurs in a building according to the present invention.
FIG. 2 is a state diagram illustrating a state in which a fire safety power supply device is applied to a room of a building when a fire of a building according to the present invention is applied.
FIG. 3 is a conceptual diagram illustrating a power supply unit and an emergency power supply unit in a fire power supply unit using self-power generation in the apartment house according to the present invention.
4 is a side sectional exploded view showing a state where a coupling portion is provided in a fire safety power supply device when a fire occurs in a building.
5 is a cross-sectional view showing the binding means of FIG.
And
6 is a side sectional view showing a state in which the female and male coupling tubes are coupled in FIG.

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 Literature No. 1644084 as it is, all the features of the device configuration described below can be understood as the matters described in the registered patent No. 1644084. [

However, in the present invention, the 'Fire-fighting facility control system of apartment house' among the configurations disclosed in the above-mentioned registered patent No. 1644084 is replaced with 'Fire safety power supply device in case of fire of buildings', and the alarm device is detached The structure for enabling installation and the operation description thereof are further included, and this part constitutes the most essential constitutional feature.

Therefore, the device structure, characteristics, and operation relationship described below will be referred to as the content of the above-mentioned registration number 1644084, and the configuration related to the main features of the present invention will be described in detail at the rear end.

1 and 2, a fire safety power supply device for a fire in a building according to the present invention includes a sensing unit 110, a control unit 120, a fire control equipment unit 130, and a power supply unit 160 .

The sensing unit 110 senses whether a gas or a gas which may cause a fire or suffocation is leaked and transmits a sensing signal to the control unit 120. The sensing unit 110 senses whether or not a fire has occurred And a gas leak detector 114 for detecting whether or not the gas is leaked.

The fire sensor 112 may be a differential type sensor that operates when the ambient temperature becomes higher than a certain rate of increase or a temperature sensor that operates when the ambient temperature becomes a certain temperature or higher and uses a bimetal, There are photoelectric detectors which are operated by the change of light amount tangent to the device or ultraviolet ray / infrared flame detector combined with ultraviolet ray sensor which detects the ultraviolet wavelength characteristic emitted from the flame and infrared ray sensor which detects the infrared ray wavelength characteristic. A fire detector of a suitable type can be selected according to the type and the like.

The gas leak detector 114 may be provided to detect LNG or LPG gas according to the type of gas used in the building or may be provided to detect toxic gas such as carbon monoxide which is fatal to the human body.

The sensing unit 110 may include an occupant sensor 116. The occupant sensor 116 is a component for detecting presence of a person inside the building, and may be an infrared sensor for detecting the temperature of a person or detecting the presence of movement in the space to determine whether the occupant is present.

The sensing unit 110 may include a wireless communication module. The wireless communication module is a component that is configured to communicate with the control unit 120 wirelessly, not via a wire.

The wireless communication module is provided to both the sensing unit 110 and the control unit 120 and may be provided to enable unidirectional or bidirectional communication.

The wireless communication module may be configured to wirelessly communicate with a ZigBee system. ZigBee is one of the IEEE 802.15.4 standards supporting short-range communication and is a wireless communication method for short-range communication and ubiquitous computing in the wireless networking field of home or office.

The Zigbee scheme has advantages of small size, low power consumption, and low cost compared with the existing technology.

Of course, the wireless communication scheme of the sensing unit 110 and the controller 120 of the present invention is not limited to the ZigBee scheme, and may be implemented in other ways.

The sensing unit 110 may further include an alarm device 117 for generating an alarm sound.

The alarm device 117 generates an alarm sound or an alarm light regardless of whether the alarm device 110 detects a risk factor such as a fire or a gas leakage to the control device 120, will be. Accordingly, the alarm device 117 may include a speaker and a beacon.

The control unit 120 detects a fire situation in the sensing unit 110 and immediately alerts the dispatcher regardless of the fact that the control unit 120 transmits the alarm signal to the control unit 120. Thus, Since the alarm is instantaneously alerted more quickly, it is possible to maximize the time for the occupant to be evacuated.

The fire-fighting equipment part 130 is a component that suppresses a fire or a gas leaking quickly, prevents a fire from spreading further, and assists the evacuation of occupants. When a fire occurs, Sprinkler and fire extinguisher that ejects fire extinguishing gas or powder, fire retardant shutter that divides space to prevent flames or smoke from spreading to other spaces, visual alarm for siren, emergency bell, An emergency lamp to guide the passage, an escape ladder to help evacuate the room, a ventilation fan to exhaust smoke and gas to the outside, and a gas leakage breaker to shut off the gas valve when gas leakage is detected.

The fire extinguishing equipment 130 is operated by an operation signal of the control unit. When the control unit 120 receives a fire or gas leak detection signal from the sensing unit 110, Fire fighting equipment suitable for the situation is activated.

In addition, the fire notification unit 140 may be an automation system that automatically notifies relevant organizations such as a fire station and a police station designated by a signal of the control unit 120 when a fire situation (occurrence of fire or gas leakage) It is a view of religion.

The fire notification unit 140 may also send information sensed by the sensing unit 110 when a fire situation is notified to the related facility.

That is, information such as the occurrence of a fire, the leakage of gas, and the presence or absence of a fire sensed by the sensing unit 110 is transmitted to a related organization so that a more appropriate response is possible.

The fire notification unit 140 may be configured to transmit the occurrence of a fire situation and information of a building to a telephone, a mobile phone, a PDA, or the like of a related person who is registered in advance as well as a related organization. Therefore, even if a fire occurs when a resident goes out, it can be notified immediately after a fire occurs, and it is possible to notify a resident's family member or a related person immediately, thereby enabling faster response.

The controller 120 and the control unit 120 are connected to the control unit 120 and the fire extinguishing unit 130. However, the present invention is not limited to this, .

The wireless communication module included in the sensing unit 110 may be configured to receive a signal transmitted from another sensor.

That is, a plurality of sensing units 110 may be installed in various places in the building. When a sensing unit 110 installed inside the building senses a fire situation, And is transmitted through a wireless communication module.

The fire detection signal may be received by the sensing unit 110 provided at another location in the wireless communication module to operate the alarm device 117.

Accordingly, when a fire situation occurs in the building, since the detectors provided in the building directly transmit and receive fire detection signals without passing through the control unit 120, the fire alarm can be performed more quickly.

Referring to FIG. 2, an example in which a fire safety power supply unit is applied to a building in the event of a fire of a building according to the present invention will be described. A sensing unit 110 is installed in a living room or each room.

The sensing unit 110 may be a fire sensor 112 for detecting a fire or an occupant sensor 116 for sensing whether a person is in the room.

A gas leakage detector 114 may be provided at a place where gas leakage is likely to occur, such as in a kitchen or a boiler room.

It is preferable that the control unit 120 is provided at a convenient place such as a living room or a door.

Since the control unit 120 and the sensing unit 110 communicate with each other through wireless communication, the control unit 120 and the sensing unit 110 are freely installed compared with a method of wirelessly communicating, and can freely install in a place where fire or gas leakage can be best detected. have.

Also, a fire fighting equipment 130 operated by the control unit 120 is installed. In the description of this embodiment, an example in which the sprinkler 132 is applied as the fire-fighting equipment 130 is shown. However, the present invention is not limited thereto, and other fire-fighting equipment such as a fire-fighting shutter and a ventilation fan may be added.

The sprinkler 132 is provided to spray fire water into each living room and room, and can be supplied directly to the water supply to receive fire water.

A fire notification unit 140 may be provided to notify the fire department of the fire situation according to a signal of the control unit 120. [

The fire notification unit 140 may be installed at a place where the control unit 120 is installed.

Referring to FIG. 3, the power supply unit 150 supplies power to the sensing unit 110, and charges the battery 118.

The power supply unit 150 includes a power supply line 151 through which power is supplied from the outside to one end and the alarm device 117 is connected to the other end and the battery 118 is connected to the power supply line 151 in parallel And an auxiliary power lead wire 152 for connecting the auxiliary power lead wires.

The power supply unit 150 allows the power supplied from the outside to be smoothly transmitted to the sensing unit 110 while allowing the power supplied from the battery 118 to be discharged from the battery 118 So that power supply to the alarm device 117 can be performed quickly.

Both ends of the auxiliary power lead wire 152 are connected to the power lead wire 151 and the battery 118 is connected between both ends thereof. It should be understood that the power supplied from the outside flows from one end of the auxiliary power lead wire 152 to the other end.

The battery 118 is charged as power supplied from the outside passes through the auxiliary power lead 152 through the power lead 151.

When the sensing unit 110 includes at least one of the fire sensor 112 and the gas sensor 114, the power supply unit 150 may include the fire sensor 112, the gas sensor 114, It is a matter of course that power can be supplied.

At this time, the power line 151 may be connected to the fire detector 112 or the gas detector 114 together with the alarm device 117 while the other end is branched.

This is because it is possible to secure the sensing state of the building through the smooth operation of the sensing unit 110 while receiving a stable supply of power from the outside at normal times, and at the same time, in an emergency state due to fire, So that the sensing state of the battery 118 can be continuously supplied without power supply.

Accordingly, the present invention can detect the occurrence of a dangerous factor such as a fire or a gas leak through the alarm device 117 through smooth power supply through the battery 118, even when the power supply is interrupted from the outside By generating an alarm sound or an alarm light, alarm can be given to the occupant.

The present invention may further include an emergency power supply unit 160 that allows the power of the battery 118 to be supplied to the fire extinguishing system 130 in response to an external power cutoff.

The emergency power supply unit 160 is connected to the power line 151 so that one end thereof is positioned between the other end of the auxiliary power line 152 and the other end of the power line 151, A connection switch 162 connected to the emergency power line 161 and a connection switch 162 connected between one end of the power line 151 and one end of the auxiliary power line 152, And a power supply detection sensor 163 connected to the power line 151 for detecting a power supply cutoff state from the outside.

The connection switch 162 maintains an off state, that is, a disconnection state, normally when power is supplied from the outside.

It is to be understood that the fire fighting equipment 130 receives power from another external power source.

The control unit 120 tangles the connection switch 162 according to a detection signal of the power supply detection sensor 163 so that the power of the battery 118 can be transmitted to the fire fighting equipment unit 130.

This is for the purpose of enabling the fire fighting equipment unit 130 to operate smoothly when the power supply from the outside is cut off.

The emergency power supply unit 160 has both ends and is connected to an emergency power supply line 151 connected to the power supply line 151 such that one end thereof is positioned between the other end of the auxiliary power supply line 152 and the other end of the power supply line 151, An emergency alarm device 165 connected to the other end of the emergency power line 164 and an emergency switch 166 connected to both ends of the emergency power line 164.

The emergency switch 166 maintains an off state, that is, a disconnection state, normally when power is supplied from the outside.

The emergency alarm device 165 may be a speaker or a warning light for generating an alarm sound or an alarm light, and informs a resident of the apartment or a resident of the apartment when the power supply from the outside is cut off.

The control unit 120 tangles the emergency switch 166 according to a detection signal of the power supply detection sensor 163 so that the power of the battery 118 can be transmitted to the emergency alarm device 165 .

Therefore, the present invention can quickly respond to a power cutoff from the outside due to a power failure, a fire or the like.

In the present invention, the structure of the coupling unit 200 for detachably installing the alarm device 117 on the wall W as shown in FIGS. 4 to 6, including the above-described structure, is further implemented .

The coupling part 200 allows smooth detachment of the alarm device 117 from the indoor wall W of the building so that a smooth operation state can be maintained through checking and replacement.

The coupling unit 200 includes an arm fastening pipe 210 extending forward from the wall W and a locking member 210 provided on a rear surface of the alarm device 117 and coupled to the inside of the arm fastening pipe 210. [ And fastening means 230 for fastening the fastening pipe 220 and the female and male fastening pipes 210 and 220.

Here, it is to be understood that the back surface of the alarm device 117 faces the wall W.

The arm fastening pipe 210 has a rear end portion fixed to the wall W and a front end portion extending in a forward direction.

The front end of the water-tightening pipe 220 is fixed to the rear surface of the alarm device 117, and the rear end of the water-tightening pipe 220 extends in the direction of the arm tightening pipe 210.

The male coupling pipe 220 is coupled to the inner side of the female coupling pipe 210 while having an outer diameter smaller than the inner diameter of the female coupling pipe 210.

The female coupling pipe 210 is formed with a pair of outer through holes 211 opposed to the upper and the lower portions and a pair of inner through holes 221 opposed to the upper and the lower portions are formed do.

The inner and outer holes 221 and 211 may communicate with each other in a state where the female and male coupling pipes 210 and 220 are coupled.

The binding means 230 includes a connecting bar 231 which is received in the inside of the male coupling pipe 220 so that both ends thereof face the pair of inner holes 221. The connecting bar 231 is opened at its inner end, A pair of coupling bars 232 movably coupled to both ends of the coupling bars 231 so as to be movable in the longitudinal direction and the other ends of which are received in the inner through holes 221, And a spring 233 which is coupled to the outside of the housing.

The connection bar 231 has a circular bar shape and has both ends extending in a direction intersecting the longitudinal direction of the male coupling pipe 220 and facing the inner hole 221.

The pair of binding bars 232 extend in the longitudinal direction of the connecting bar 231 at both side ends thereof and are movably coupled to the outside of both ends of the connecting bar 231 in the longitudinal direction with one end thereof being opened .

It is preferable that the coupling bar 232 has a flange 232a extending outward at one end thereof and is smoothly brought into contact with the spring 233. [

The other end of the coupling bar 232 is pulled out through the inner hole 221 in a state where the male coupling pipe 220 is not engaged with the female coupling pipe 210, 220 in a state in which they protrude outward.

The other end of the coupling bar 232 is inserted into the inner through hole 221 by the contact with the arm fastening pipe 210 while the male coupling pipe 220 is engaged with the arm fastening pipe 210, So that it does not protrude outward of the male coupling pipe 220.

The other end of the coupling bar 232 is protruded to the outside of the male coupling pipe 220 while the other end of the coupling bar 232 is pulled out through the inner hole 221 in a state where the female and male coupling pipes 210 and 220 are completely engaged with each other And enters the outer through hole 211.

And the other ends of the binding bars 232 may be pressed inwardly through the outer through holes 211 to the binding and sealing of the female and male fastening pipes 210 and 220.

The other end of the coupling bar 232 is coupled to the arm and coupling pipes 210 and 220 while being drawn into the outer hole 211 while being pulled out of the outer hole 211, The binding to the pipes 210 and 220 can be released.

It is preferable that the other end of the binding bar 232 has a hemispherical shape.

This is because the contact area between the arm tightening pipe 210 and the arm tightening pipe 210 is minimized when the arm tightening pipe 210 or the water tightening pipe 220 is rotated So that it can be smoothly inserted into the inner through hole 221 by contact with the arm tightening pipe 210.

The binding bar 232 may be provided with a preventive ring 234 for preventing the protrusion of the binding bar 232 through the inner through hole 221 from being stopped at a predetermined position.

The prevention ring 234 may be in contact with the inner circumferential surface of the male coupling pipe 220 to adjust the degree of the coupling bar 232 protruding to the outside of the male coupling pipe 220 through the inner hole 221 have.

For example, the binding bar 232 may have a thread formed on the outer circumferential surface thereof, and the preventing ring 234 may be movably coupled to the binding bar 232 while a thread is formed on the inner circumferential surface thereof.

One of the coupling bars 231 is threaded on the outer peripheral surface of one end of the coupling bars 231, and one coupling bar of the coupling bars 231 of the pair of coupling bars 232 is threaded on the inner peripheral surface thereof The connecting bar 231 can be screwed.

Accordingly, the coupling between the connecting bar 231 and the pair of binding bars 232 can be stably performed.

Therefore, the coupling unit 200 can be detached from the indoor wall W of the building to the alarm device 117, so that the alarm device 117 can be checked and replaced smoothly, It is possible to keep the smooth operation state continuously by checking and replacing.

110: Detector 112: Fire detector
114: Gas leak detector 116: Occupant detector
117: Alarm device 118: Battery
120: control unit 130:
132: sprinkler 140: fire notification section
150: Power Supply Unit 151: Power Line
152: auxiliary power lead 160: emergency power feed
161: Emergency power lead 162: Connection switch
163: Power supply detection sensor 164: Emergency power line
165: Emergency alarm device 166: Emergency switch
200: coupling part 210: arm fastening tube
211: Outer hole 220: Water tightening pipe
221: inner through hole 230: binding means
231: connecting bar 232: connecting bar
233: Spring

Claims (1)

A wireless communication module installed in a room and capable of short-distance mutual transmission and reception of signals, an alarm device 117 for generating an alarm sound when a fire situation in a building is detected or a fire signal transmitted from another wireless communication module is received, A plurality of sensing units 110 having a battery 118;
A controller 120 for operating the fire extinguishing system 130 by a short range wireless signal of the sensing unit 110, and a wireless communication module for wirelessly communicating with the sensing unit 110 installed in the room.
A power supply unit 150 for supplying power from the outside to the sensing unit 110 and charging the battery 118 with power; And
And an emergency power supply unit (160) for allowing the power of the battery (118) to be supplied to the fire fighting equipment unit (130)
The power supply unit 150,
A power lead 151 to which power is supplied from the outside to one end and to which the alarm device 117 is connected at the other end; And
And an auxiliary power lead wire (152) having both ends connected to the power lead wire (151) and having the battery (118) connected between both ends thereof,
The battery (118)
Supplies power to the alarm device (117) and the emergency power supply (160) according to the interruption of the external power supply,
The emergency power supply unit 160,
An emergency power source connected to the power line 151 so that one end thereof is positioned between the other end of the auxiliary power line 152 and the other end of the power line 151 and the other end is connected to the fire- Conductor 161;
A connection switch 162 connected to the emergency power lead 161; And
A power supply detection sensor 163 connected to the power line 151 so as to be positioned between one end of the power line 151 and one end of the auxiliary power line 152, ),
The connection switch (162)
The power supply is normally maintained in a disconnected state when power is supplied from the outside,
The control unit (120)
The connection switch 162 is tangled in response to the detection signal of the power supply detection sensor 163 so that the power of the battery 118 is transmitted to the fire fighting equipment unit 130. [ In a power supply,
Further comprising a coupling part (200) for detachably mounting the alarm device (117) on the wall (W)
The engaging portion 200 may be formed of,
An arm fastening pipe 210 extending forward from the wall W;
A water tightening pipe 220 provided on a rear surface of the alarm device 117 and coupled to the inside of the arm fastening pipe 210; And
And binding means (230) for binding the female and male fastening pipes (210, 220)
The arm fastening pipe (210)
A pair of outer through holes 211 opposed to the upper and lower portions are formed,
In the water-tightening pipe 220,
A pair of inner through holes 221 opposed to the upper and lower portions are formed,
The inner and outer through holes 221 and 211 are formed in the through-
The female and male fastening pipes 210 and 220 are connected to each other in a state where the female and male fastening pipes 210 and 220 are coupled,
The binding means (230)
A connecting bar (231) housed inside the male coupling pipe (220) such that both ends thereof face the pair of inner holes (221);
A pair of coupling bars 232, one end of which is open at both ends of the connecting bar 231 so as to be movable in the longitudinal direction, and the other end of which is in the form of a hemispherical shape and is received in the inside hole 221; And
A spring 233 coupled to the outside of the connecting bar 231 to be positioned between the pair of binding bars 232;
And a stop ring 232 provided on the outer side of the coupling bar 232 and contacting the inner circumferential surface of the male coupling pipe 220 to stop the protrusion of the coupling bar 232 through the inner hole 221 234)
The prevention ring (234)
The length of the coupling bar 232 which is movably screwed to the coupling bar 232 and which protrudes outward through the inner hole 221 while being moved in the longitudinal direction of the coupling bar 232 along with rotation ≪ / RTI &
The binding bar 232 may be formed,
A flange 232a extending outward at one end portion is formed and smooth contact with the spring 233 is achieved, While the other end is drawn into the outer through hole 211 to bind the arm and water tightening pipes 210 and 220 while releasing the binding to the arm and water tightening pipes 210 and 220 while being drawn out from the outer hollow hole 211 ,
One of the coupling bars 231 is threaded on the outer peripheral surface of one end of the coupling bars 231, and one coupling bar of the coupling bars 231 of the pair of coupling bars 232 is threaded on the inner peripheral surface thereof Wherein the connection bar (231) is screwed with the connection bar (231).

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