WO2023171902A1 - Single-layer winding-type multi-cable reel and aerial installation device using same - Google Patents

Abstract

Disclosed is a single-layer winding-type multi-cable reel in the present invention. The single-layer winding-type multi-cable reel is characterized in that a wire cable comprises a first cable and a second cable, the first cable and the second cable are wound in a single layer on the circumferential surface of a drum to prevent heat from being generated by an eddy current, and when the drum rotates, the first cable and the second cable are simultaneously wound or unwound.

Description

Single-layer wound multi-cable reel and aerial installation equipment using it

This application claims priority based on Korean Patent Application No. 10-2022-0031053 filed on March 11, 2022 and Korean Patent Application No. 10-2022-0114190 filed on September 8, 2022. All content disclosed in the application specifications and drawings of the applications is incorporated herein by reference.

The present invention relates to a single-layer wound multi-cable reel and an aerial installation device using the same. More specifically, a single-layer wound multi-cable reel with a structure installed on a ceiling or wall to unwind or wind a wire cable, and an aerial installation device using the same. It is about installation equipment.

An outlet is a device that supplies power by combining with a plug connected to various home appliances or electrical appliances, and is usually installed embedded in the ceiling or wall of various facilities.

In multi-use facilities such as schools, restaurants, cafes, and bars, electric appliances are used simultaneously in multiple locations within a limited space, so a large number of electrical outlets are installed on the ceiling, walls, and floor of the room, and if necessary, a power strip is connected to the outlet. A method of branching the power cable to multiple locations is also commonly used.

In recent years, as the use of portable electronic devices such as smartphones, laptops, touchpads, etc. has become widespread, it is also common to see people charging portable electronic devices by connecting them to outlets in multi-use facilities.

However, the use of outlets in these multi-use facilities involves complicated wiring along the walls and floors of the room, which not only makes the interior look unattractive, but also makes it inconvenient to plug in or disconnect electrical appliances from the outlet, and it is inconvenient to plug the plugs of electrical appliances into or out of the outlet. There is a risk of safety accidents such as tripping on the cable and falling.

As an alternative, a technology has been proposed that installs a cable reel on the ceiling or wall and connects an outlet to the end of the reel so that it can be raised and lowered.

For example, in Korean Patent Publication No. 10-1530169, wires can be wound in a stacked manner in the longitudinal direction to prevent twisting or twisting of the wires. As the second winding part rotates, the main power supply line and the outlet power supply line can continuously supply power even while rotating for winding or withdrawal. The diameter of the first winding part is formed to be smaller than the diameter of the second winding part, and the main power supply line is A cable reel outlet lifting device is disclosed, wherein the outlet power supply line is drawn out longer than the unwinding length.

However, the conventional cable reel outlet lifting device has a structure in which the motor that provides rotational force and the cable winding part are arranged at a predetermined distance from each other, which limits the miniaturization of the device, and the center of gravity is tilted to one side, making it difficult to stably elevate the outlet. There is a difficult problem.

In addition, there is a disadvantage in that the configuration to prevent the cable supplying the main power from being twisted when the winding unit rotates is complicated, so an alternative is required.

In addition, conventional cable reels are constructed so that the power cables are wrapped around the drum several times in multiple layers, so when supplying power, eddy currents are induced between cables adjacent to each other in the upper and lower layers, generating heat and sometimes leading to fires. It is happening.

The present invention was created in consideration of the above points, and provides a single-layer wound multi-cable reel with improved safety by preventing the problem of rotation of the lifting body during the raising and lowering of the wire cable and minimizing the occurrence of eddy currents between the wire cables. The purpose is to do this.

Another object of the present invention is to provide a single-layer wound multi-cable reel that enables miniaturization of the device by improving the coupling relationship between the drum stored inside the main body and the drive motor.

Another object of the present invention is to provide a single-layer wound multi-cable reel that can accurately detect the rotation amount of the drum and the unwinding length of the wire cable by winding the wire cable at a constant pitch around the outer peripheral surface of the drum.

Another object of the present invention is to provide a single-layer wound multi-cable reel having a structure in which various payloads are fused to an elevating body and an aerial installation device using the same.

In order to achieve the above object, the present invention includes: a main body installed on a ceiling, a wall, or a support of a predetermined shape and having a storage space therein; a drum rotatably stored inside the main body and having a hollow interior; A first cable wound around the circumferential surface of the drum and wound from a first position to a second position on the drum, and a second cable spaced apart from the first cable by a predetermined distance and wound from a third position to a fourth position on the drum. wire cable containing 2 cables; a drive motor disposed in the hollow to provide forward/reverse rotational force to the drum; A slip ring installed on a part of the drum to receive commercial power in a contact manner; and an elevating member suspended from a lower end of the electric wire cable and installed to be capable of being raised and lowered, wherein the electric wire cable is wound in a single layer on the circumferential surface of the drum to prevent heat generation due to eddy current, and is positioned at the first position, the second position, The third position and the fourth position are sequentially arranged at predetermined intervals in the longitudinal direction of the drum, the lower end of the first cable is connected to one side of the elevating body, and the lower end of the second cable is connected to the elevating body. It provides a single-layer wound multi-cable reel, which is connected to the other side of the drum and is characterized in that the first cable and the second cable are simultaneously wound or unwound when the drum rotates.

A guide groove accommodating a portion of the outer peripheral surface of the power cable may be formed on the circumferential surface of the drum to extend spirally along the longitudinal direction of the drum so that the power cable can be wound at a constant pitch.

A position adjustment hole may be formed in at least one location of the guide groove, which communicates with the hollow part of the drum and serves as a starting point for winding the power cable around the circumferential surface of the drum.

To enable selection of a starting point for winding around the circumferential surface of the drum according to the entire length of the power cable, a plurality of position adjustment holes may be formed alternately with respect to the guide groove that is repeated in the longitudinal direction of the drum. there is.

In order to secure the rigidity of the drum, the position adjustment holes may be formed to be staggered in multiple directions based on the rotation center axis of the drum.

Additionally, it may further include at least one guide roll fixed to the inner bottom surface of the main body and disposed at a lower portion of the drum to guide the power cable being released from the drum to the lower side of the main body.

It may further include a microcomputer that detects a no-load state by detecting tension applied to the power cable, or detects an overload state and performs control to automatically stop operation of the driving motor.

The microcomputer may further perform slow section control to prevent impact between the main body and the drum by reducing the rotational speed of the drum before the lifting member rises and engages the main body.

The microcomputer may further perform automatic stop control to detect when the lifting body reaches a preset height and stop the operation of the driving motor.

The lifting body may be configured as an outlet provided with at least one plug insertion hole.

The lifting body is formed with a cable hole into which the first cable and the second cable can be inserted, and a plurality of cable holes are arranged around the cable hole to surround the first cable and the second cable on all sides, respectively. A compression block is disposed, and the plurality of compression blocks are pushed in by bolts that are selectively inserted to contact the outer surface of the compression block, thereby pressing the first cable and the second cable to connect the first cable and the second cable. A cable may be fixed to the lifting body.

The lifting body may be an outlet provided with at least one plug insertion hole.

One of the first cable and the second cable may be a power cable and the other may be a signal cable.

The wire cable may further include a third cable wound around the circumferential surface of the drum, spaced apart from the second cable by a predetermined distance, and wound from a fifth position to a sixth position on the drum.

The lifting body is an electric vehicle charging plug, and the first cable, second cable, and third cable may be electrically connected to the electric vehicle charging plug.

A non-contact transmission module or magnetic connector for transmitting power to an electric vehicle may be placed on the lifting body.

It may further include a multi-purpose shelf disposed at the lower part of the lifting body and having a storage surface on the upper surface on which objects can be placed.

According to another aspect of the present invention, it includes the single-layer wound multi-cable reel, and a payload mounted on a lower part of the elevating body of the single-layer wound multi-cable reel and movable together with the elevating body, wherein the payload includes lighting, An aerial installation device that is at least one selected from emergency evacuation guidance lights, CCTV cameras, screens, electric vehicle chargers, beam projectors, speakers, billboards, digital signage, emergency medical supplies, and emergency relief supplies is provided.

The single-layer wound multi-cable reel and an aerial installation device using the same according to the present invention have the following effects.

First, since the two or more cables that make up the wire cable are wound in a single layer on the drum, eddy currents can be prevented from being induced between adjacent cables. Therefore, even if electricity is used with all or part of the cable wound around the drum, substantially the same electrical safety effect can be obtained as when using the cable completely unwound from the drum.

Second, the tensile strength supporting the elevating body is improved by the structure of simultaneously winding or unwinding two or more cables, so it can be applied to elevating bodies with various sizes and loads, and prevents the problem of the elevating body rotating during elevation. You can.

Third, it is not easy to wind a typical electric vehicle charging cable around a drum due to the nature of using a large-diameter, hard cable, but when applying the present invention, multiple cable strands connected to the electric vehicle charging plug are each wound around a drum and simultaneously wound or unwound. This allows you to conveniently handle the electric vehicle charging cable.

Fourth, by dividing the wire cables into signal cables and power cables and connecting them to the elevating body, confusion in communication signals can be prevented and convenience of wiring work can be promoted.

Fifth, since the drive motor and gear unit are arranged in the hollow of the cable reel to rotate the cable reel, the device can be miniaturized compared to the prior art in which the drive motor and gear unit are installed outside the cable reel.

Sixth, since commercial power is transmitted to the wire cable in a contact manner by the slip ring, twisting of the wire cable can be prevented when the drum rotates and the power transmission structure can be simplified.

Seventh, when no load or overload is detected on the drive motor, the operation of the drive motor can be automatically stopped to prevent safety accidents.

Eighth, by hanging payloads such as LED lights, emergency evacuation guidance lights, CCTV cameras, screens, electric vehicle chargers, beam projectors, speakers, billboards, digital signage, emergency medical supplies, and emergency rescue supplies on the lower part of the elevator body, The device can be conveniently placed and used at any location.

1 is a side view of a single-wound multi-cable reel according to a preferred embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along line A-A' in FIG. 1.

Figure 3 is a perspective view showing the internal configuration of the main body in a state in which the lifting body of Figure 1 is raised.

Figure 4 is a perspective view showing a state in which the elevating body of Figure 3 is lowered.

Figure 5 is a perspective view showing the main configuration of a single-layer wound multi-cable reel according to another embodiment of the present invention.

Figure 6 is a perspective view showing the state in which the lifting body in Figure 5 is lowered.

Figure 7 is a partial bottom view showing the configuration of fixing the wire cable to the lifting body in Figures 1 and 5.

Figure 8 is a perspective view showing the exterior of Figure 1.

Figure 9 is a perspective view showing a modified example of Figure 8.

Figure 10 is a perspective view showing an example in which the ceiling fixing bracket in Figure 8 is provided.

Figure 11 is a perspective view showing an example in which the wall fixing bracket in Figure 8 is provided.

Figure 12 is a perspective view showing an example of the multi-purpose shelf in Figure 8 being arranged.

Figure 13 is a perspective view showing a modified example of the lifting body in Figure 8.

14 to 20 are perspective views each showing the configuration of an aerial installation device according to another aspect of the present invention.

Figure 1 is a side view of a single-wound multi-cable reel according to a preferred embodiment of the present invention, Figure 2 is a cross-sectional view taken along line A-A' in Figure 1, and Figure 3 is a perspective view showing the internal configuration in Figure 1. , FIG. 4 is a perspective view showing the state in which the elevating body in FIG. 3 is lowered.

Referring to FIGS. 1 to 4, the single-layer wound multi-cable reel according to a preferred embodiment of the present invention includes a main body 100 installed in a high place such as the ceiling, and a drum 101 rotatably stored inside the main body 100. ) and a wire cable 102 including a first cable 102a and a second cable 102b wound around the circumferential surface of the drum 101 and separated from each other, and fixed to the main body 100 to form the drum 101 A drive motor 104 that provides rotational force to the drive motor 104, a gear unit 105 that reduces the rotational force of the drive motor 104 and transmits it to the drum 101, and an elevating member 120 that can be raised and lowered by hanging from the wire cable 102. Includes.

The main body 100 is installed on a support of a predetermined shape, such as a ceiling or wall inside a building, or a pole or building pillar. The main body 100 includes a case of a predetermined shape that can completely surround the interior to protect the internal components, and a storage space for storing the drum 101 is provided inside the main body 100.

The drum 101 is rotatably stored inside the main body 100, and an electric wire cable 102 is wound around its circumferential surface. The total length of the wire cable 102 wound around the drum 101 can be selected in various ways depending on the installation environment. In terms of electrical safety, it is desirable that the wire cable 102 be completely released from the drum 101 when the elevating body 120 is completely lowered to the required position.

Inside the drum 101, a hollow wall 103 is formed to separate the hollow space. That is, the drum 101 has a structure in which hollows are formed on both sides of the partition wall 103.

The wire cable 102 is wound around the circumferential surface of the drum 101 and includes a plurality of cables 102a and 102b that are independently separated from each other. When the drum 101 rotates, the plurality of cables 102a and 102b are simultaneously wound or unwound.

Specifically, the wire cable 102 is a first cable 102a wound from a first position (a) to a second position (b) on the drum 101, and is spaced apart from the first cable 102a by a predetermined distance. and includes a second cable 102b wound from a third position (c) to a fourth position (d) on the drum 101. When the lifting body 120 is a large, high-load object, the drum 101 can be configured to have a longer length, if necessary, and the number of cables included in the wire cable 102 can be further expanded. The first cable 102a and the second cable 102b may each include a single strand of wire within the cable or may include two or more multiple strands of wire.

The first position (a), second position (b), third position (c), and fourth position (d) are sequentially arranged at predetermined intervals in the longitudinal direction of the drum 101.

The lower end of the first cable 102a is connected to one side of the lifting body 120, and the lower end of the second cable 102b is connected to the other side of the lifting body 120. When the drum 101 rotates, the first cable 102a and the second cable 102b are simultaneously wound or unwound. Preferably, one of the first cable (102a) and the second cable (102b) can be used as a power cable and the other can be used as a signal cable.

The slip ring 106 is a member disposed on the other side of the partition wall 103, that is, on the right side of the partition wall 103, and receives commercial power through a contact method. The slip ring 106 is configured so that a pair of contact points continuously maintain contact with each other when the drum 101 rotates, and receives commercial power while slipping and rotating. One side of the slip ring 106 is fixed to one vertical plate 108b of the bracket 108, which will be described later.

At least one wire penetration hole is formed in the partition wall 103 in the thickness direction. Therefore, the wire strand whose sheath has been dismantled at the end of the wire cable 102 is introduced into the hollow of the drum 101 through the position adjustment hole formed on the circumferential surface of the drum 101, and passes through the wire penetration hole into the slip ring. It can be connected to (106). As an alternative, it is also possible to add a separate connection line between the input terminal of the wire cable 102 and the slip ring 106.

An optical sensor 107 is disposed on one side of the slip ring 106 to detect the rotation amount of the drum 101. The light emitting element and the light receiving element of the optical sensor 107 are arranged to face each other with the edge of the slip ring 106 interposed therebetween.

On the outer peripheral surface of the drum 101, a guide groove 101b is formed to extend spirally along the longitudinal direction of the drum 101 to accommodate a portion of the circumferential surface of the wire cable 102 so as to wind the wire cable 102 at a constant pitch. It is done.

The position adjustment hole is formed in at least one location of the guide groove 101b, which communicates with the hollow part of the drum 101 and serves as a starting point for winding the wire cable 102 around the outer peripheral surface of the drum 101. A plurality of position adjustment holes may be formed alternately in a pattern of guide grooves 101b that are repeated along the length of the drum 101.

The first cable (102a) and the second cable (102b) constituting the wire cable 102 are each wound as a single layer on the circumferential surface of the drum 101, and are connected to the drum 101 in consideration of the length of each cable. It is possible to select the starting point of winding around the circumferential surface. According to the configuration in which the wire cable 102 is wound in a single layer, heat generation due to eddy currents occurring between adjacent wires can be prevented.

The position adjustment holes are formed to be staggered in multiple directions based on the rotation center axis of the drum 101. According to this configuration, the rigidity of the drum 101 can be secured by distributing the length section of the drum 101 in which the position adjustment holes are formed.

The rise stop limit switch 109 is fixed to the inner bottom surface of the main body 100, and a portion of it penetrates the lower surface of the main body 100 and is exposed to the outside, so that when the elevation of the lifting body 120 is completed, the lifting stop limit switch 109 is fixed to the inner bottom surface of the main body 100. It operates by contacting the upper surface. When the rise stop limit switch 109 is activated, a microcomputer (not shown) stops the drive motor 104 to stop winding.

The guide roll 110 is fixed to the inner bottom surface of the main body 100, and at least one is disposed at the lower part of the drum 101, and an electric cable 102 is released from the drum 101 to the lower part of the main body 100. guide. It is preferable that a guide roll 170 is placed on the bracket 108 fixed to the main body 100 in a direction crossing the wire cable 102 wound around the drum 101 to lightly press the wire cable 102.

Additionally, a no-load limit switch 112 may be connected to the rotation axis of the guide roll 110. The no-load limit switch 112 can detect the landing state of the lifting body 120 by detecting the tension applied to the wire cable 102 that is released from the drum 101. For example, when power is supplied to the drive motor 104 to lower the lifting body 120, when the lifting body 120 reaches the ground and the tension decreases, the tension on the guide roll 110 changes and the no-load limit switch ( 112).

At the bottom of the main body 100, a substantially 'ㄷ' shaped bracket 108 arranged to surround the drum 101 is fixed to form an assembly of the drum 101, the drive motor 104, and the gear unit 105. supports. The bracket 108 consists of a pair of vertical plates 108a and 108b and a horizontal plate 108c connecting the upper ends of the pair of vertical plates 108a and 108b. A pair of vertical plates 108a and 108b are respectively disposed at opposite ends of the drum 101. The rear end of the drive motor 104 is bolted and fixed to one (108a) of a pair of vertical plates (108a, 108b), and one side of the slip ring (106) and the optical sensor (107) are attached to the other (108b). is fixed.

The mounting piece 111 is a fastening member for installing the main body 100 to a ceiling, a wall, or a support of a predetermined shape. The mounting piece 111 is formed by cutting and bending a portion of the middle point of the horizontal plate 108c and protruding out of the upper surface of the main body 100. The mounting piece 111 is formed with a fastening hole 111a for passing fastening elements such as bolts or pieces.

The drive motor 104 is directly or indirectly fixed to the main body 100 and disposed in the hollow on one side of the drum 101. A gear unit 105 consisting of a reduction gear assembly that reduces the rotational force of the drive motor 104 and transmits it to the drum 101 is connected to the rotation shaft of the drive motor 104. The output end of the gear unit 105 is fixed by being inserted into the center of one surface of the partition wall 103 and transmits rotational force to the drum 101.

The driving motor 104 is made of a direct current (DC) motor, and when the lifting body 120 is stopped and the lifting body 120 falls short of its own load or a predetermined tensile force, the drum 101 rotates. To prevent this, both ends of the power input terminal of the drive motor 104 are shorted, or a braking resistor with a predetermined resistance value is connected between both ends.

Alternatively, when the lifting body 120 is stopped and the lifting body 120 falls short of its own load or a predetermined tensile force, the reduction gear ratio of the gear unit 105 is sufficiently large so that the drum 101 does not rotate. can be set.

The drive motor 104 may be configured to lower the elevating body 120 by actively rotating with a power source when a predetermined high load or a force greater than a tensile force is applied to the elevating body 120. Preferably, a direct current motor may be employed as the drive motor 104.

A microcomputer (not shown) in charge of controlling the driving motor 104 detects no-load or overload conditions on the driving motor 104 and performs control to automatically stop the operation of the driving motor 104. To this end, an encoder (not shown) may be installed on one side of the drive motor 104 to detect the rotation amount of the drive motor 104. The microcomputer can detect the rotational speed of the driving motor 104 from the count value of the encoder and determine a no-load or overload state from this.

The microcomputer additionally performs slow section control to prevent impact between the main body 100 and the drum 101 by reducing the rotational speed of the drum 101 before the lifting body 120 rises and engages the main body 100. can do. At this time, the microcomputer controls the drum 101 to be gradually coupled to the lower part of the main body 100 by repeatedly turning the drive motor 104 on and off by outputting a pulse signal.

In addition, the microcomputer can additionally perform automatic stop control to detect when the lifting body 120 reaches a height preset by the user and stop the operation of the driving motor 104. At this time, the microcomputer recognizes the position of the lifting body 120 from the rotation amount detected through the encoder and outputs a control signal to stop the operation of the driving motor 104 when the lifting body 120 reaches the preset position. do. For example, in the case of a restaurant kitchen, since there is a lot of moisture on the floor, the lifting body 120 can be set to descend and automatically stop at a point several tens of centimeters (cm) from the floor.

The lifting body 120 may be configured as an electric outlet suspended from a wire cable 102 and having at least one plug insertion hole 121 on one side. Preferably, the lifting body 120 is made of a disk-shaped plastic injection molding. According to this configuration, the entire device can be configured compactly because it comes into close contact with the center of the lower surface of the main body 100 when the lift is completed.

The lifting body 120 has a configuration in which a wire cable 102 is introduced into the center of the upper surface, and a plurality of plug insertion holes 121 are arranged symmetrically on both sides with respect to the center. That is, the lifting body 120 is configured so that the plug insertion holes 121 of the electric outlet are exposed to the upper surface of the disk structure. According to this configuration, when the lifting body 120 is completely raised and the upper surface of the lifting body 120 is coupled to the lower part of the main body 100, the plug insertion holes 121 are not exposed to the outside, which is advantageous in terms of electrical safety and interior aesthetics.

The wireless charging unit (not shown) is built into the elevating body 120 and supplies wireless power in the direction of one side (preferably, the upper surface) of the elevating body 120 by electromagnetic induction or resonance induction to be placed on the elevating body 120. It provides wireless charging function for certain portable electronic devices such as smartphones.

Figure 5 is a perspective view showing the main configuration of a single-layer wound multi-cable reel according to another embodiment of the present invention, and Figure 6 is a perspective view showing a state in which the lifting body in Figure 5 is lowered. In the drawings, the same reference numerals as those in the above-described embodiments indicate the same components.

Referring to Figures 5 and 6, the wire cable 102 is spaced a predetermined distance from the second cable 102b, including the first cable 102a and the second cable 102b, and is located on the drum 101. It includes a third cable 102c wound from the 5th position (e) to the 6th position (f). In addition, the wire cable 102 can be expanded to include a various number of cables as needed, such as a fourth cable, a fifth cable, ... an nth cable (n: a natural number).

When the lifting body 120 is, for example, an electric vehicle charging plug, the wire strands provided inside each of the first cable 102a, the second cable 102b, and the third cable 102c may be electrically connected to the electric vehicle charging plug. there is. That is, for example, if the electric vehicle charging plug is a 7-pin plug (including a power pin and a signal pin), the first cable 102a, the second cable 102b, and the third cable 102c each include three strands of wire. It can be configured, some of which are unused (or wired), and the final 7 strands of wire can be connected to the electric vehicle charging plug. According to this configuration, there is an effect of winding or unwinding the cable strands connected to the electric vehicle charging plug by distributing them on the plurality of drums 101, so it is advantageous to conveniently handle existing electric vehicle charging cables having large diameter and hard properties. There is.

Figure 7 shows a partial configuration of the bottom of the lifting body 120. As shown in the drawing, when the first and second cables 102a and 102b are inserted into the plurality of cable holes 166 formed at predetermined intervals in the lifting body 120, the first and second cables 102a and 102b are connected to each other. By moving the pressing blocks 164 arranged to surround the first and second cables 102a and 102b in the direction of the first and second cables 102a and 102b, the first and second cables 102a and 102b can be firmly fixed to the lifting body 120. . For this purpose, corresponding semicircular bolt holes 165 are formed on the outer surface of each pressing block 164 and the inner peripheral surface of the circular rib of the corresponding lifting body 120. Accordingly, when a predetermined bolt is selectively inserted into the bolt hole 165 and tightened, the end of the bolt contacts the pressing block 164 and the pressing block 164 is pushed inward to form the first/second cables 102a, 102b) is pressed, and thus the first/second cables 102a and 102b can be firmly fixed to the lifting body 120.

In the present invention, the lifting body 120 is in close contact with the center of the lower surface of the main body 100 when the lifting is completed. Here, the main body 100 may be configured as exposed as shown in FIG. 8 and installed to protrude out of the ceiling. Alternatively, the main body 100 may be configured as an embedded type, as shown in FIG. 9, with a flange 130 provided at the bottom, and the flange 130 may be embedded parallel to the surface of the ceiling.

Additionally, the main body 100 may be provided with a ceiling fixing bracket 131 that is fastened to the upper surface and fixed to the ceiling, as shown in FIG. 10. Alternatively, the main body 100 may be provided with a wall fixing bracket 132 having a substantially 'ㄷ' shape that can be fixed to the wall as shown in FIG. 11.

As shown in FIG. 12, a storage unit 161 may be provided on one side of the lifting body 120. The storage unit 161 is installed on the elevating body 120 in a drawer style so as to be able to slide forward and backward so as to selectively open the internal storage space 162. Alternatively, the storage portion 161 may be configured as a pop-up type that is selectively rotated to protrude. A predetermined spring (not shown) that applies elastic force in a direction in which the lifting body 120 is pulled inward may be connected to the receiving unit 161. For example, household items or miscellaneous items such as toothpicks, bottle openers, air fresheners, candies, etc. may be stored in the internal storage space 162 of the storage unit 161.

A multipurpose shelf 163 may be placed at the lower part of the lifting body 120. The multipurpose shelf 163 includes a storage surface 163a on which objects can be placed and a pair of support plates 163b extending upward from the storage surface 163a. The ends of the pair of support plates (163b) are connected to both sides of the elevating body (120) with a pivot (164) and are installed so that they can shake freely. For example, objects such as a card checker, a car electric charging cord, a speaker, a camera, etc. can be placed on the storage surface 163a. Even if the center of gravity of these objects is tilted to one side on the storage surface (163a), the multi-purpose shelf (163) is always suspended on the elevating body (120) facing the direction of gravity by the pivot (164), enabling stable storage. .

As shown in FIG. 13, an interface port 132, a LAN port 133, and a Wi-Fi router 134 that can be connected to portable electronic devices or home appliances may be disposed on the lifting body 120. . The interface port 132 may be at least one selected from a USB (Universal Serial Bus) port and an HDMI (High Definition Multimedia Interface) port.

Additionally, a non-contact transmission module or magnetic connector for transmitting power to an electric vehicle may be disposed on the lifting body 120. The non-contact transmission module can charge the battery of the electric vehicle by performing wireless power transmission to a power reception module correspondingly disposed on a part of the electric vehicle or a predetermined member connected to the electric vehicle. The magnetic connector is coupled to a magnetic connector of opposite polarity disposed on a part of the electric vehicle or a predetermined member connected to the electric vehicle by magnetic force, and the contact points are in contact with each other, so the connector connection is quick and convenient.

Figures 14 to 20 are perspective views showing the configuration of an aerial installation device using a single-layer wound multi-cable reel according to a preferred embodiment of the present invention.

14 to 20, the aerial installation device according to a preferred embodiment of the present invention includes a single-layer wound multi-cable reel including a main body 100, a wire cable 102, and an elevating body 120, and a single-layer wound type multi-cable reel. It is mounted on the lower part of the elevating body 120 of the multi-cable reel and includes a payload that can be moved together with the elevating body.

The single-layer wound multi-cable reel may have the same configuration as the above-described embodiment. The wire cable 120 wound on a single-layer wound multi-cable reel has a rotation inhibition function unlike a single cable due to its nature of having a first cable 102a and a second cable 102a, so that various payloads can be stably placed in the air. You can.

The payload may be connected to the lower part of the elevating body 120 through predetermined fasteners 140 and 141 and move in the vertical direction together with the elevating body 120 to be placed at a designated location in the air. Preferably, the payload includes lighting, emergency evacuation guidance lights, CCTV cameras, beam projectors, screens, electric vehicle chargers, speakers, billboards, digital signage, emergency medical supplies (first-aid medications, gas masks, ventilators, cardiac defibrillators, etc.), emergency It may be at least one selected among relief supplies (drinking water, blankets, emergency food, etc.).

As a specific example, FIG. 14 shows a configuration in which the load on the lower part of the lifting body 120 is a square light 135, which is a substantially square-shaped light with front/back direction. As a modified example, an LED array lighting composed of a plurality of LEDs may be built into the lower part of the lifting body 120.

Figure 15 shows a configuration in which the load on the lower part of the elevating body 120 is an emergency evacuation guidance light 137 that guides an evacuation route in the event of a fire or flood disaster.

FIG. 16 shows a configuration in which the mounted object on the lower part of the lifting body 120 is a CCTV camera 136.

FIG. 17 shows a configuration in which the beam projector 138 is mounted on the lower part of the elevating body 120. Considering the weight of the payload, in this case, it is preferable that at least two single-layer wound multi-cable reels are used in parallel.

FIG. 18 shows a configuration in which the load on the lower part of the lifting body 120 is a screen (or batten) 139. Considering the weight and center of gravity of the payload, it is desirable to use at least two single-layer wound multi-cable reels in parallel in this case as well.

19 and 20 show a configuration in which the load on the lower part of the elevating body 120 is an electric vehicle charger 142. The electric vehicle charger 142 is connected to the elevating body 120 through a charging cable 143. Inside the lifting body 120, the charging cable 143 is electrically connected to the wire cable 102. Although the drawing shows an example in which the wire cable 102 consists of three lines of the first cable 102a, the second cable 102a, and the third cable 102c, it is not limited to this and the number of cables can be adjusted as needed. It can be.

Preferably, a loop-type holder 144 may be disposed on one side of the lifting body 120. When waiting to charge an electric vehicle, the electric vehicle charger 142 can be hung and mounted on the loop-type holder 144 as shown in FIG. 19. In addition, when charging an electric vehicle, the electric vehicle charger 142 can be removed from the loop-type holder 144, as shown in Figure 20, and connected to the charging socket of the electric vehicle with the charging cable 143 hanging down.

Hereinafter, the operation of a single-wound multi-cable reel and an aerial installation device using the same according to a preferred embodiment of the present invention will be described.

Single-layer wound multi-cable reels can be applied to multi-use facilities such as schools, restaurants, cafes, and bars, as well as construction sites and electric vehicle charging stations. The single-layer wound multi-cable reel can stably support an electric outlet or electric plug by having at least two cables (102a, 102b, 102c) simultaneously wound or unwound.

The user can lower the elevating body 120 by operating the single-layer wound multi-cable reel using a wired or wireless remote control. The lifting body 120 can be used by placing it in the air on a workspace or table, or by landing it on the table surface and then inserting the plug of a device that requires power supply into the plug insertion hole 121. Alternatively, the user can also lower the lifting body 120 by pulling it downward by hand. At this time, the single-layer wound multi-cable reel does not descend when the load or tensile force is less than the set by the braking resistance or gear reduction ratio settings, so safety accidents can be prevented.

When the power supply ends, the user can operate the wired or wireless remote control to raise the lifting body 120 and return it to its original position on the ceiling. The lifting body 120 rises by the winding operation of the driving motor 104, and when it reaches the lower surface of the main body 100, the upper surface contacts the rising stop limit switch 109 and the lifting is stopped. When the elevation of the lifting body 120 is completed, the cables 102a, 102b, and 102c constituting the wire cable 102 are wound in a single layer around the circumferential surface of the drum 101. In this way, as the cables 102a, 102b, and 102c are wound in a single layer on the circumferential surface of the drum 101, eddy currents can be prevented from being induced between the adjacent cables 102a, 102b, and 102c.

Therefore, even if electricity is used while all or part of the wire cable 102 is wound around the drum 101, substantially the same electrical safety effect can be obtained as when the wire cable 102 is completely unwound from the drum 101. . In addition, the tensile strength supporting the elevating body 120 is improved by the structure of simultaneously winding or unwinding two or more cables 102a, 102b, and 102c, so that it can be used on the elevating body 120 with various sizes and loads. The invention can be applied.

According to the present invention, the lifting body 120 to which the wire cable 102 is connected is used to charge portable electronic devices such as smartphones, laptops, touchpads, etc. or to plug devices such as laboratory equipment, electric heaters, video conferencing devices, etc. We can provide a multi-elevating cable reel that can be connected conveniently and neatly. In this way, as it is integrated with various devices, space use efficiency can be increased by placing the device in the air close to the ceiling when not in use (or for disaster preparedness).

In addition, by placing a multipurpose shelf on the elevating body, you can conveniently lift and use electrical outlets, lighting, card checkers, car electric charging cords, speakers, cameras, etc., and by forming a storage section on the elevating body, you can store toothpicks, bottle openers, air fresheners, and candy. It has the advantage of being able to neatly store household items and miscellaneous items such as lights.

When applying the present invention, the main body is fixed to the ceiling of a multi-use facility or various living convenience facilities, and LED lighting, emergency evacuation guidance lights, CCTV cameras, beam projectors, screens, electric vehicle chargers, speakers, By placing payloads such as billboards, digital signage, emergency medical supplies, emergency relief supplies, etc., you can conveniently use them while supplying electricity to the relevant device (or item) or lower it for maintenance.

Claims (17)

A main body installed on a ceiling, wall, or support of a predetermined shape and provided with a storage space inside; a drum rotatably stored inside the main body and having a hollow interior; A first cable wound around the circumferential surface of the drum and wound from a first position to a second position on the drum, and a second cable spaced apart from the first cable by a predetermined distance and wound from a third position to a fourth position on the drum. wire cable containing 2 cables; a drive motor disposed in the hollow to provide forward/reverse rotational force to the drum; A slip ring installed on a part of the drum to receive commercial power in a contact manner; and It includes a lifting body installed to be capable of being raised and lowered while hanging at the lower end of the wire cable, The wire cable is wound in a single layer on the circumferential surface of the drum to prevent heat generation due to eddy current, The first position, second position, third position and fourth position are sequentially arranged at predetermined intervals in the longitudinal direction of the drum, The lower end of the first cable is connected to one side of the elevating body and the lower end of the second cable is connected to the other side of the elevating body, A single-layer wound multi-cable reel, characterized in that the first cable and the second cable are simultaneously wound or unwound when the drum rotates. According to paragraph 1, A single-wound multi-cable reel, characterized in that a guide groove accommodating a portion of the outer peripheral surface of the wire cable is formed on the circumferential surface of the drum to extend spirally along the longitudinal direction of the drum so as to wind the wire cable at a constant pitch. According to paragraph 2, A single-wound multi-cable reel, characterized in that a position adjustment hole is formed in at least one location of the guide groove, which communicates with the hollow of the drum and serves as a starting point for winding the wire cable around the circumferential surface of the drum. According to paragraph 3, A single-wound multi-cable reel, wherein a plurality of position adjustment holes are formed alternately with respect to the guide grooves that are repeated along the longitudinal direction of the drum to enable selection of a starting point for winding on the circumferential surface of the drum. . According to paragraph 4, In order to secure the rigidity of the drum, the position adjustment holes are formed to be staggered in multiple directions with respect to the rotation center axis of the drum. According to paragraph 1, A single-layer wound type multi-cable reel further comprising: at least one guide roll fixed to the inner bottom surface of the main body and disposed at a lower part of the drum to guide the wire cable being released from the drum to the lower side of the main body. According to paragraph 1, A microcomputer that detects a no-load state by detecting tension applied to the wire cable or detects an overload state and performs control to automatically stop the operation of the drive motor. A single-layer wound multi-cable reel further comprising a. According to claim 7, the microcomputer: A single-wound multi-cable reel, characterized in that slow section control is further performed to prevent impact between the main body and the drum by reducing the rotational speed of the drum before the lifting member rises and engages the main body. The method of claim 8, wherein the microcomputer: A single-layer wound multi-cable reel, characterized in that it further performs automatic stop control to stop the operation of the drive motor by detecting when the elevating body descends and reaches a preset height. According to paragraph 1, A cable hole is formed in the lifting body into which the first cable and the second cable can be inserted, respectively, A plurality of compression blocks are arranged around the cable hole to surround the first cable and the second cable on all sides, respectively, The plurality of compression blocks are pushed in by bolts that are selectively inserted to contact the outer surface of the compression block and press the first cable and the second cable, so that the first cable and the second cable are connected to the lifting body. A single-layer wound multi-cable reel characterized by being fixed. According to paragraph 1, A single-layer wound multi-cable reel, characterized in that the lifting body is an outlet provided with at least one plug insertion hole. According to paragraph 1, A single-layer wound multi-cable reel, characterized in that one of the first cable and the second cable is a power cable and the other is a signal cable. The method of claim 1, wherein the wire cable is: A single-layer wound type multi-cable reel, characterized in that it is wound around the circumferential surface of the drum, is spaced apart from the second cable by a predetermined distance, and further comprises a third cable wound from a fifth position to a sixth position on the drum. According to clause 13, The lifting body is an electric vehicle charging plug, A single-layer wound multi-cable reel, characterized in that the first cable, second cable, and third cable are electrically connected to the electric vehicle charging plug. According to clause 14, A single-layer wound multi-cable reel, characterized in that a non-contact transmission module or magnetic connector for transmitting power to an electric vehicle is disposed on the lifting body. According to paragraph 1, A single-layer wound type multi-cable reel further comprising: a multi-purpose shelf disposed at the lower part of the lifting body and provided with a storage surface on the upper surface on which objects can be placed. It includes a single-layer wound multi-cable reel and a payload mounted on a lower part of the elevating body of the single-layer wound multi-cable reel and capable of moving with the elevating body, The payload is at least one selected from lighting, emergency evacuation guidance lights, CCTV cameras, screens, electric vehicle chargers, beam projectors, speakers, billboards, digital signage, emergency medical supplies, and emergency relief supplies, The single-layer wound multi-cable reel, A main body installed on a ceiling, wall, or support of a predetermined shape and provided with a storage space inside; a drum rotatably stored inside the main body and having a hollow interior; A first cable wound around the circumferential surface of the drum and wound from a first position to a second position on the drum, and a second cable spaced apart from the first cable by a predetermined distance and wound from a third position to a fourth position on the drum. wire cable containing 2 cables; a drive motor disposed in the hollow to provide forward/reverse rotational force to the drum; A slip ring installed on a part of the drum to receive commercial power in a contact manner; and It includes a lifting body installed to be capable of being raised and lowered while hanging at the lower end of the wire cable, The wire cable is wound in a single layer on the circumferential surface of the drum to prevent heat generation due to eddy current, The first position, second position, third position and fourth position are sequentially arranged at predetermined intervals in the longitudinal direction of the drum, The lower end of the first cable is connected to one side of the elevating body and the lower end of the second cable is connected to the other side of the elevating body, An aerial installation device, characterized in that the first cable and the second cable are simultaneously wound or unwound when the drum rotates.

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