KR20090041383A - Ceiling embedded type concent up and down apparatus - Google Patents

Abstract

A ceiling embedded type power receptacle elevating apparatus is provided to drop an electrical receptacle outlet from the ceiling to connect a plug to an electrical appliance. A wire winding drum for reeling the wire is formed in one side of a first rotator(160). A limit switch perceiving the winding state of the wire and an plurality of screw nut casings(161) arranged is formed in the first rotator. Through-hole is punched in the center of a second rotator(170) so that a rotating axis(120) is accommodated by penetration. The outer edge portion of through-hole is formed to be extended to bidirectional and the outer edge portion of through-hole is comprised of a first and a second bushing. A plurality of bolt lead-in protrusion(171) is formed as protruded in the spot which a same gap is spaced from the first bushing. A copper wire inlet hole of the radial shape is arranged in a second bushing space. A through-hole punched in the center of a fixing plate(180) so that a rotating axis is accommodated by penetration. A contact unit(182) is arranged for a supply of the power to the conductive material by jointing a plurality of wires. Plural pair of protrusion(181) having a constant space formed between the protrusion are arranged to lead in a fixing member(133). A control unit(140) receives a remote control signal. The control unit controls an elevation operation of a receptacle outlet based on the predetermined information.

Description

Ceiling Embedded Socket Lift {Ceiling Embedded Type Concent Up and Down Apparatus}

The present invention relates to a ceiling-mounted outlet lifting apparatus configured to be drawn out or wound vertically downward from the ceiling in order to supply power to various electric appliances, and more particularly, by lowering the outlet from the ceiling in a home, office, or other business place. By connecting the electric appliance with the plug, various electric appliances can be used conveniently.After use, the outlet is re-buried to the ceiling by a simple operation of the remote controller. The ceiling-mounted outlet is designed to completely eliminate the problem, and furthermore, it does not interfere with other items due to the advantage that the electrical wiring is not exposed to the indoor floor, and it is not only beautiful in appearance but also convenient for use. It relates to a lifting device.

Since the outlet is a means for connecting various home appliances or electrical appliances, many outlets are installed in the building.

Since the outlet is usually installed on the wall of the home or office, it is easily covered by furniture or drawers provided for the interior of the room, and when the outlet is so hidden, it becomes very difficult to use electrical appliances, and moreover, such as an auditorium. In the case of a large space, the distance from the central location to the wall outlet is considerably greater, which makes it difficult to use electrical appliances.

In addition, because the outlets used in laboratories, research institutes, schools, etc. are often used to connect electrical appliances or to move a limited place, a separate outlet is required when the length of the wire is short. In other words, if you want to show the presentation, which is the screen of the material you want to explain through your computer, portable terminal, etc., at a briefing session with many people, such as a school office or officetel, or a conference hall, auditorium, etc. Since many outlets must be installed to connect power to the outlet, the outlet is continuously plugged into the outlet, and plugged in to connect the power. The wires that are branched into the tab are routed along the floor of the room. It causes inconvenience in use.

This electrical wiring is connected to a plurality of electrical appliances in one outlet, and there is a risk of fire due to the excessive use of power, as well as a complicated wiring state, plugging the corresponding electrical appliances or plug from the outlet There is a problem in that it is inconvenient to separate, and the wires are always laid on the floor, so that the foot is tripped over or injured due to the injury.

In order to solve this problem, Korean Patent Application No. 10-2005-33416 has proposed a socket outlet lifting control device in a height raising and lowering device, and the conventional device is fixed to a concrete ceiling to vertically lift an articulated link. It is characterized in that the outlet is integrally connected to the lowermost end of the height lifting device, and configured so that the lifting operation can be safely controlled by a separate outlet lifting control device.

Registered Utility Model 20-0389682, the electric lifting device,

A case 10 having a rectangular shape, the lower surface and both sides of which are opened, a plurality of fixing holes formed to fix the upper surface to the ceiling, and a control box 11 for controlling the drive of the geared motor 21 on one side;

It is composed of a pair of gears that are geared with the drive gear 21a of the geared motor installed inside the electrical case and the gears are not formed at a position corresponding thereto, and form a plurality of fixing holes 23a, and the shaft 26 Rotating plate (20, 20a) and the through-hole 27 is formed to be rotatably inserted into),

A frame 22 having threads 23 formed at both ends having a length so as to be interposed between electric rotating plates,

An insertion groove into which the electric frame 22 is inserted is formed, and bolts are connected to the connecting pins in contact with the copper plate via springs, and the connecting pins are coupled to each other so as to be arranged on three concentric circles. First and second rotary bodies 30 and 30a which connect a connection terminal to which a wire is connected to the connecting pins arranged and form a through hole inserted into the fixed body at a central portion thereof;

It forms a through-hole inserted into the electric shaft, and forms a boss extending from the through-hole to both sides so as to rotatably couple the first and second rotation bodies to the outer circumference of the boss, and the copper plate insertion groove to insert three copper plates on one side And first and second fixed bodies 40 and 40a having protrusion insertion holes into which the projections of the copper plate are inserted on the copper plate insertion grooves.

As described above, the conventional 'outlet lift control device in a lift device' is complicated by the overall structure, and the cost is increased according to the work process and manufacturing cost, and the wire is folded by the operation of the cut-out link installed on the ceiling. As the lifting and unfolding operation is repeated indefinitely, there is a short circuit between the wires. In addition, there is a problem in that noise and vibration are generated because a considerable output of the motor is required in driving the contact link.

On the other hand, the practical use of the 'concentration lifting device' is a structure that wound the wire horizontally in the winding drum 25, as shown in Figure 1 because it is not easy to wind the wires arranged side by side is very unstable, the drum As the gear is formed on one side, there is a risk that the electric wire will be damaged when it comes in contact with the gear.In addition, the driving force generated from the geared motor is transmitted to the rotating plate through the drive gear. Must be used, and the contact portion for transmitting electricity is formed in the form of two points, the width of the winding drum is enlarged, as well as the contact closeness is not smooth, because it is separated from the drum has a disadvantage in mounting.

In addition, the conventional device has to use at least two or more due to the small number of contacts, and frequently escapes from the drum when the wire is wound, and also the wire is separated from the drum when the length of the wire is stretched or caught by hand during the falling of the wire In addition, there is no function to monitor the operation of a separate electrical overload and the motor is exposed to safety accidents unprotected.

The present invention has been made to actively solve the above problems, in the configuration of the ceiling-mounted outlet lifting apparatus of the present invention; The outlet lifting device includes: a main body fixedly mounted to a ceiling, a main body including both side plates disposed vertically downward from both outer edges of the top plate to protect the inside thereof, and connected in series to the first rotating body at the side plate of the main body. And a reduction motor for transmitting a driving force; and the first and second fastening holes penetrating the fastening bolts by being fixedly coupled to the inner space of the reduction motor and disposed in pairs at opposite positions, respectively, to drill the first rotating body. And a rotating shaft formed of an annular protrusion interposed in the space between the second and second rotating bodies; and a through hole for receiving a portion of the reduction motor in the center thereof, and a wire winding drum for winding the electric wire integrally formed on one surface thereof. A first rotating body having a plurality of nut casings arranged in a row and a limit switch sensing a winding state of the wire; and a through hole to receive the rotating shaft in the center thereof. The outer periphery of the through hole is formed to extend in both directions to form the first and second bushings, respectively, protruding a plurality of bolt inlet protrusions at points spaced apart from the first bushing, and the space around the second bushing A second rotating body in which a radial copper wire inlet hole is disposed; and a contact portion for drilling a through hole to receive the rotating shaft in the center and fixing a plurality of electric wires with a conductor to supply power, and the fixing member is arranged. A fixed plate having a plurality of pairs of receiving protrusions formed by spaced apart from each other so as to be retractable; and collectively controlling the driving of the reduction motor, receiving a remote control signal, and lifting the outlet based on information inputted. A control unit for implementing the operation; and a support bar fixed to both side plates of the main body and rotated, and grooves are formed along the circumference to accommodate the wires to prevent the wires from being separated. Guide rollers prevented pole; And an anti-separation roller disposed at the tip of the guide roller to guide the drawing and winding of the electric wire more stably.

According to the elevating device of the present invention implemented in the above configuration, the power transmission efficiency is remarkably superior to other reduction gears to maximize the energy efficiency, the wire is more stable due to the structure in which the electric wire is wound in a longitudinal stack arrangement It is effective to wind up.

In addition, since the fixing plate for supplying power is not installed inside the rotating body and in close contact with the side of the second rotating body, it is possible to maintain a smooth supply of electricity, and also has an advantageous effect in future repair and maintenance.

Hereinafter, with reference to the accompanying drawings, a configuration for implementing the ceiling-mounted outlet lifting apparatus of the present invention will be described below.

The present invention is configured so that the bundle of outlets can be raised and lowered in the ceiling of the laboratory, research institute, auditorium, etc. can be used simultaneously by multiple users plugging a plurality of electrical appliance power plug, it is disposed on the top of the ceiling after use It can be configured so that safety accidents can be prevented in advance, and in particular, it is related to the ceiling-mounted outlet lifting apparatus 100 that emphasizes convenience and has a beautiful appearance.

Figure 1a is an exploded perspective view of the outlet lifting apparatus according to the prior art, Figure 1b is a major component configuration of Figure 1a, Figure 2 is a perspective view of a combination lifting device configured according to an embodiment of the present invention, Figure 3 is a present invention Figure 4 is an exploded perspective view of the lifting device configured according to the preferred embodiment of the present invention, Figure 4 is a main portion of the configuration showing the main portion of the present invention, Figure 5 is a perspective view of the main portion of the present invention, Figure 6 is a preferred embodiment of the present invention The cross-sectional block diagram of the lifting apparatus constructed by the Example is shown, respectively.

The present invention is composed of a main body 130 to form an appropriate internal space to be installed on the ceiling as shown in Figures 2 to 6, the reduction motor 110 and the rotating shaft 120 in the interior space; A first rotating body 160 and a second rotating body 170; Fixing plate 180; Guide roller 150 and the separation prevention roller 210; And a controller 140 for controlling them collectively.

The main body 130 includes a housing having a shape in which a lower surface and a front and a rear surface are opened, and accommodates a plate-shaped upper plate and a predetermined reduction motor 110 fixedly mounted to a ceiling, and one end of a rotating shaft 120 connected thereto. It consists of both side plates that can be made.

In both side plates of the main body 130, the insertion hole 131 and the ball bearing 132 are formed in the inner spaces opposed to each other so that the rotation shaft 120 connected to the reduction motor 110 is disposed, and the insertion hole 131 is disposed. The control unit 140 may be additionally mounted by drilling another cutout in the perforated side plate, so that the controller may be remotely controlled by receiving the remote control signal as well as the overall driving of the device.

The reduction motor 110 is a component that provides a direct driving force to draw or wind the wire 200, as described above, the reduction motor is inserted in series with the insertion hole 131 of the main body side plate to the first rotating body ( 160 is fixed while being engaged with the through-hole perforated in the center, the end of the rotating shaft 120 is drilled into the annular protrusion 121 and the first and second fastening holes (123, 124).

As shown in FIG. 3, both ends of the rotating shaft 120 are individually accommodated through the ball bearings 132 formed on the reduction motor 110 and the side plate, and one end of the first rotating body 160 is formed; Second rotating body 170; Fixed plate 180; are inserted in order to support them, and the rotary shaft end is placed in the ball bearing to perform a parallel movement.

The annular protrusion 121 of the rotating shaft is caught by the first bushing 172 of the second rotating body 170 drilled to a narrower size via the through hole of the first rotating body 160. Through holes of the fastening holes 123 and 124 and the first and second bushings 172 and 173 naturally overlap to induce them to be more conveniently and easily mutually fastened.

The first rotating body 160 drills through-holes in a central portion thereof to receive one end of the reduction motor 110, and a plurality of nut casings 161 protrude in one direction around the through-holes through which the reduction motor is introduced. . In addition, the wire winding drum 162 is formed in an arc shape on the other rear surface, a part of which is cut so that the limit switch 163 may be partially exposed.

The nut casing 161 is a component in which the nut member is formed so as to be engaged with a bolt (not shown) in the inner space, and the bolt inlet protrusion 171 of the second rotating body 170 is located at a position corresponding thereto. By being disposed and fastened to each other by a coupling member such as a bolt, the first rotating body 160 and the second rotating body 170 are integrally formed to implement the same rotational motion.

The wire winding drum 162 is provided to be integral with the first rotating body 160 so as to be wound through the wire 200 in the space between the first and second rotating bodies, and the wire is covered when the electric wire is wound or unwound. It does not damage, and is usually configured to have a similar width in consideration of the thickness of one strand of the cable.

The limit switch 163 is a component for controlling the deceleration motor 110 by sensing the winding state of the wire wound on the wire winding drum 162, and the wire is automatically drawn out when the wire is drawn out from the wire winding drum. Is made so that the operation of the deceleration motor 110 can be organically operated, which is similar to the same as the prior art, detailed description thereof will be omitted.

The second rotating body 170 has a through hole to allow one end of the rotating shaft 120 to penetrate in the center thereof, and extends the outer edge of the through hole to form the first bushing 172 and the second bushing 173, respectively. And a plurality of bolt inlet protrusions 171 protrudingly installed so as to correspond to the nut casing 161 of the first rotating body 160, and are coupled to each other in the inner space of the wire winding drum 162.

That is, the first rotating body 160 and the second rotating body 170 are able to draw and wind the wires by mutual coupling thereof, the bolt inlet 171 disposed on the second rotating body 170 ) Is introduced into the inner space of the wire winding drum 162 of the first rotating body, and the plurality of drawn bolt inlets are disposed to correspond to the plurality of nut casings 161 and bolted to the first and second rotating bodies ( 160 and 170 may be engaged with each other, and as the bolt inlet 171 protrudes by itself, it may be supported while being spaced apart from each other in the coupling of the first and second rotating bodies.

On the other surface of the second rotating body 170, a plurality of circular copper wire inflow holes 174 are formed around the second bushing 173 so that the current can be smoothly transferred, and copper has high electrical conductivity. Copper was inserted radially into the copper inflow hole so as to be in close contact with the contact portion 182 of the fixing plate 180 so that electricity transmitted by the contact portion was transferred to the outlet 190 through the copper wire.

The fixing plate 180 has a predetermined through hole formed in the center thereof so that the fixing plate 180 can be fitted to the second bushing 173 of the second rotating body, and as shown in the drawing, a plurality of electric wires are fixed by bolts so that the bolts serve as conductors. The plurality of wires are configured to be connected to the control unit 140 itself to induce the flow of current. In addition, reference numeral 182 denotes a contact portion, which secures one end of the bolt fixed with the wire with a nut, as shown in FIG. 3, to make contact with the copper wire of the second rotating body, and conducts electricity. By transferring a current to the copper wire that is in close contact with this by a bolt that is connected to the outlet 190 and is to supply electricity properly to the end of the wire located in the wire winding drum 162.

The fixing plate 180 is fitted into the second bushing of the second rotating body 170 to fix the plurality of fixing members introduced through one side plate of the main body 130. When the fixing member 133 is fitted into the center space of the plurality of receiving protrusions 181 formed on the fixing plate 180 to pull out the nuts to the outside, the extracted nuts come into contact with the respective receiving protrusions 181 and the fixing member ( The end of the 133 is fixed, whereby the fixing plate 180 is fixed to the main body side plate in a state of being fitted to the second rotating body 170, and of course, the contact portion 182 formed on the other side of the fixing plate is more in line with the copper wire. As it closely adheres, the adhesion force is doubled, so that electricity can be applied more efficiently.

The support bar 151 is fixed at both ends via both side plates of the main body 130, and accommodates the guide roller 150 to induce the drawing and winding of the wire 200 more stably, and the control unit 140. As in the conventional apparatus, implements organic driving of each component according to a predetermined signal. In addition, by separately forming a remote control receiver (not shown) to remotely control the falling and rising operation of the outlet 190 by the remote control signal by rotating the deceleration motor 110 in accordance with the user's operation, the outlet is a certain distance You can ascend as much as you can.

The release prevention roller 210 is disposed at the tip of the guide roller 150 to press the wire so as not to leave the guide groove of the guide roller when the wire is drawn out or wound to guide the winding of the wire more stably.

Hereinafter, the present invention having the above-described configuration will be embodied according to the most preferred embodiment, and will be described in detail with respect to the action and effect caused thereby. Prior to this, terms or words used in this specification and the following claims are not intended to be construed as limited to conventional or dictionary meanings, and the inventors have used the concept of terminology in order to best describe their own invention. It can be properly defined, 'it should be interpreted as meanings and concepts corresponding to the technical spirit of the present invention based on the principle.

Ceiling mounted outlet lifting device 100 of the present invention,

A main body 130 fixedly mounted to the ceiling, and a main body 130 including both side plates disposed vertically downward from both outer edges of the top plate to protect the inside thereof; A reduction motor 110 connected in series with the first rotating body 160 in the side plate of the main body to transmit a driving force; The first and second fastening holes 123 and 124 which are fixedly coupled in the inner space of the reduction motor and are disposed in pairs at opposite positions to penetrate the fastening bolts 122 are drilled, and the first rotating body 160 is disposed. A rotating shaft 120 formed of an annular protrusion 121 interposed in a space between the second and second rotating bodies 170; A through hole for receiving a portion of the reduction motor 110 is drilled in the center, and a wire winding drum 162 for winding the wire is integrally formed on one surface, and a plurality of nut casings 161 arranged at equal intervals; A first rotating body 160 having a limit switch 163 detecting a winding state of the wire; The through hole is drilled so that the rotating shaft 120 is accommodated in the center, and the outer edge of the through hole is formed to extend in both directions, respectively, and constitutes first and second bushings 172 and 173, and a plurality of points are spaced at equal intervals from the first bushing. A second rotatable body 170 protruding from the bolt entry protrusion 171 and having a radial copper wire inflow hole 174 disposed in a space around the second bushing; A through hole is formed in the center so that the rotating shaft 120 is accommodated therethrough, and a contact portion 182 is fixed to a plurality of electric wires with a conductor for supply of power, and a predetermined space is allowed to enter the fixing member 133. A fixed plate 180 having a plurality of pairs of receiving protrusions 181 formed to be spaced apart from each other; A controller 140 for collectively controlling the driving of the reduction motor 110 and receiving a remote controller signal to implement a lifting operation of the outlet 190 based on previously inputted information; A guide roller 150 inserted into the support bars 151 fixed to both side plates of the main body 130 to rotate, and having a groove formed along the circumference to accommodate the wire, thereby actively preventing the wire from being separated. It is characterized by being configured.

If the remote control receiver connected to the control unit 140 is installed through one side of the main body 130, and the user operates the remote control to transmit schedule information to the remote control receiver, the control unit determines the transmitted information and the deceleration motor 110. ) Is rotated forward or reverse to allow the outlet 190 to fall or rise a certain distance. When the user inputs a specific key provided on the remote control to lower the outlet, a predetermined control code is transmitted from the remote control to the remote control receiver by the input, and the control code is supplied to the controller through the remote control receiver. It will be recognized that the control code for lowering the input. As a result, the first and second rotating bodies 160 and 170 configured to be connected to the rotating shaft 120 of the reduction motor are driven in one direction, and the wire wound on the wire winding drum 162 is drawn out, and the wire is wound down by a predetermined distance. When all are exhausted, the drawing operation is completed by the limit switch 163.

In the present invention, the use of a remote control capable of remote control as an example for inputting a control command is used as an example, but as another embodiment, a separate switch device connected by wire may be installed on a wall.

In the case where the outlet 190 is to be lowered from the lifting device of the present invention, when a control signal is input to the control unit 140 by the operation of a down button or a remote controller, the control unit applies power to the reduction motor 110. When the driving is started, and as the reduction motor rotates in one direction by the application of power, the rotating shaft 120 connected thereto is rotated, and the first and second rotating bodies 160 and 170 fixedly coupled to the rotating shaft by means are lowered in the outlet. It will rotate in the direction. When the first and second rotary bodies 160 and 170 rotate in rotation, the fixing plate 180 engaged with the second rotary body is disposed in place by the interaction of the receiving protrusion 181 and the fixing member 133.

On the other hand, one end of the electric wire wound on the electric wire winding drum 162 is mounted to the outlet 190 is installed so that the power is applied, the other end is connected to the copper wire of the second rotating body 170, the contact portion ( 182) allows electricity to reach the outlet.

As the first and second rotors 160 and 170 rotate, the wires wound on the wire winding drum 162 are drawn out, and the drawn wires 200 are accommodated in the guide roller 150 grooves. ) And slowly descends with a sense of stability. When the lowering of the outlet is completed, the limit switch 163 provided inside the wire winding drum detects that the wires are all loose and sends this signal to the control unit 140, and the control unit immediately cuts off the power applied to the reduction motor. The motor is stopped.

In addition, when the electric wire is wound up to raise the lowered outlet, the controller 140 may transmit a specific signal to the controller by pressing a lift button or operating a remote controller in the same manner as when the outlet is lowered. By sensing, the reduction motor 110 is rotated in the reverse direction. As the wire drawn out according to the reverse rotation of the reduction motor is wound on the wire winding drum 162 again, the outlet rises, and the wire is pressed by the release prevention roller 210 even when the outlet is lifted up. ) To achieve accurate winding operation, and in the present invention, although not shown separately, another limit switch recognizes the completion of the ascending of the outlet so that the control unit receives the corresponding signal and cuts off the power applied to the reduction motor. It can be said that it can be stopped.

As described above, the present invention has been described based on the application of the outlet, but instead of the outlet installed at the end of the wire 200, by installing various lighting fixtures can implement a ceiling-mounted luminaire lifting device, instead of the outlet Even if the luminaire is applied, the same operation and effects that are essentially intended to be pursued in the present invention can be obtained. Such modifications will belong to the scope of the present invention.

Figure 1a is an exploded perspective view of the outlet lifting device according to the prior art.

Figure 1b is a main component configuration of Figure 1a.

Figure 2 is a perspective view of the lifting device configured according to an embodiment of the present invention.

Figure 3 is an exploded perspective view of the lifting device constructed in accordance with a preferred embodiment of the present invention.

Figure 4 is a main portion of the main component extracted and shown in the present invention.

Figure 5 is a perspective view of the main components of the present invention.

Figure 6 is a cross-sectional view of the lifting device constructed in accordance with a preferred embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

100: lifting device 110: reduction motor

120: rotation axis 121: annular protrusion

122: fastening bolt 123: first fastening

124: second fastening hole 130: main body

131: insertion hole 132: ball bearing

133: fixing member 140: control unit

150: guide roller 151: support bar

160: first rotating body 161: nut casing

162: wire winding drum 163: limit switch

170: second rotating body 171: bolt insertion protrusion

172: First bushing 173: Second bushing

174: copper wire inlet hole 180: fixing plate

181: receiving projection 182: contact portion

190: outlet housing 200: electric wire

210: release prevention roller

Claims (5)

In constructing the outlet lifting device embedded in the ceiling to induce the lifting operation of the outlet, The outlet lifting device 100, A main body 130 including a top plate fixedly mounted to the ceiling and both side plates disposed vertically downward from both outer edges of the top plate and protected inside of the top plate; A reduction motor 110 connected in series to the first rotating body 160 in the side plate of the main body and transmitting a driving force; The first and second fastening holes 123 and 124 which are fixedly coupled in the inner space of the reduction motor and are disposed in pairs at opposite positions to penetrate the fastening bolts 122 are drilled, and the first rotating body 160 is disposed. Rotating shaft 120 consisting of an annular protrusion 121 which is interposed in the space between the second rotating body 170; And, A through hole for receiving a portion of the reduction motor 110 is drilled in the center, and a wire winding drum 162 for winding the wire is integrally formed on one surface, and a plurality of nut casings 161 arranged at equal intervals; A first rotary body 160 having a limit switch 163 detecting a winding state of the wire; The through hole is drilled so that the rotating shaft 120 is accommodated in the center, and the outer edge of the through hole is formed to extend in both directions, respectively, and constitutes first and second bushings 172 and 173, and a plurality of points are spaced at equal intervals from the first bushing. A second rotation body 170 protruding from the bolt inlet protrusion 171 and having a radial copper inflow hole 174 disposed in a space around the second bushing; A through hole is formed in the center so that the rotating shaft 120 is accommodated therethrough, and a contact portion 182 is fixed to a plurality of electric wires with a conductor for supply of power, and a predetermined space is allowed to enter the fixing member 133. A fixed plate 180 having a plurality of pairs of receiving protrusions 181 formed to be spaced apart; A controller 140 for collectively controlling the driving of the reduction motor 110 and receiving a remote control signal to implement a lifting operation of the outlet 190 based on previously inputted information; A guide roller 150 inserted into a support bar 151 fixed to both side plates of the main body 130 to rotate and a groove formed along a circumference to accommodate the wire, thereby actively preventing the wire from being separated; And It is disposed at the tip end of the guide roller, the separation prevention roller 210 for guiding the withdrawal and winding of the wire more stably; Built-in ceiling lifting outlet lifting device comprising a. The method of claim 1, The fixing plate 180 is fitted to the second bushing 173 of the second rotating body 170 and each of the plurality of fixing members 133 introduced through one side plate of the main body in the center space of the receiving protrusion 181. Ceiling mounted outlet lifting device, characterized in that the contact portion 182 is configured to be in close contact with the copper wire by fitting the withdrawal of the nut. The method of claim 1, The main body 130 drills the insertion hole 131 into which the reduction motor is accommodated in one side plate, and mounts a ball bearing 132 at a predetermined position of the other side plate corresponding to the drilled insertion hole (rotating shaft coupled to the ball bearing ( 120) and the ceiling-mounted outlet lifting apparatus characterized in that the reduction shaft 110 coupled to the rotating shaft is disposed in series. The method according to any one of claims 1 to 3, The rotary shaft 120 is drilled into a plurality of first and second fastening holes 123 and 124 at one end thereof, and is installed as a through hole of the first and second rotating bodies. The first fastening hole 123 is a through hole drilled in the first bushing 172 and the second fastening hole 124 is arranged to overlap with the through hole drilled in the second bushing 173, respectively, characterized in that the bolt is fastened Ceiling-mounted outlet lifts. The method of claim 1, The bolt entry protrusion 171 disposed on the second rotating body is introduced into the inner space of the wire winding drum 162 of the first rotating body, and the plurality of introduced bolt entering protrusions are respectively provided with the plurality of nut casings 161. Ceiling-mounted outlet lifting apparatus characterized in that the first and second rotational body is configured to be coupled to each other by being bolted to correspond to each other.

Images