Electric device lifting apparatus

Abstract

The present invention relates to an electric device lifting apparatus, comprising: a support module comprising a support housing and a moving pulley; a guide module comprising a guide housing and a fixed pulley; a power tension cable; and a lifting drive cable. As the fixation of the lifting drive cable is released, an electric device located at a certain height automatically descends due to the weight thereof, and thus, maintenance of the electric device, such as a lighting mechanism, a fire detector or CCTV, which is provided at an elevated height where work is required can be easily and safely carried out without work at the elevated height. In addition, after the maintenance of the electric device is finished, the lifting drive cable is allowed to be pulled downward so as to return the electric device to the original position with less effort, thereby improving the convenience of work while securing the safety of a worker.

Description

Electric appliance lifting device

[0001] The present invention relates to an electric appliance lifting device, and more specifically, to an electric appliance lifting device that enables easy and safe maintenance of an electric appliance installed at a predetermined height indoors or outdoors.

[0002] Generally, electrical equipment such as lighting fixtures, CCTVs, and fire detectors is typically installed at heights requiring high-altitude work, either indoors or outdoors; as a result, malfunctions may occur due to factors such as short circuits, dust, vibration, and weather, or consumable parts may reach the end of their lifespan and require replacement.

[0003] In order to perform maintenance on electrical equipment installed at heights requiring high-altitude work, workers must use ladders or ladder trucks to climb to the height of the equipment. This not only makes rapid work difficult but also poses a threat to worker safety, as it can easily lead to accidents. Furthermore, when maintaining electrical equipment installed outdoors, the passage of people or vehicles must be blocked to carry out the work, causing inconvenience.

[0004] The present invention aims to solve the aforementioned problems by providing an electrical equipment lifting device that enables easy maintenance of electrical equipment, such as lighting fixtures, fire detectors, and CCTVs installed at heights requiring high-altitude work, without the need for high-altitude work, and ensures the safety of the worker.

[0005] The electric equipment lifting device of the present invention for achieving the above objective comprises: a support module including a support housing formed in the shape of a hollow cylinder with at least one end positioned at a predetermined height from the ground, and a movable pulley provided inside the support housing to move along the longitudinal direction of the support housing; a guide module including a guide housing formed in the shape of a hollow cylinder with at least one end forming an up-and-down direction, and the other end being integral with the vicinity of one end of the support housing so that one end is positioned at a height requiring high-altitude work, and a fixed pulley provided inside at least one end and the other end of the guide housing; and a power tension cable connected to an electric equipment that contains a power line and a tension line receiving power from the outside, with one end fixed near the vicinity of one end of the support housing and the other end able to come into contact with one end of the guide housing via the movable pulley and the fixed pulley. and includes a lifting drive cable in which one end is connected to a movable pulley and the other end is positioned near the ground, and as it is pulled, the movable pulley can be moved toward the other end of the support housing, and the electric device can be fixed so that the pull is not released while in contact with one end of the guide housing, and the movable pulley can be moved toward one end of the support housing so that the electric device moves downward as the fixing is released and the pull is released.

[0006] Additionally, the support housing may have a movable rail groove formed along the longitudinal direction on the inner surface of both side walls, and the movable pulley may include a first pulley wheel, a first rotation axis penetrating the first pulley wheel with both ends positioned on the movable rail groove, a first shaft support bracket forming a 'U' shape to fix the first rotation axis and surround a part of the first pulley wheel, and a cable connecting ring positioned on the opposite side of the first pulley wheel with respect to the first shaft support bracket, coupled to the first shaft support bracket so as to be axially rotated, and to which one end of a lifting drive cable is connected.

[0007] Additionally, the support housing is installed parallel to the ceiling so that its other end is located near a wall surface connected to the ceiling, and further includes a first direction change pulley installed at a height corresponding to the support housing on the wall surface to guide the change in the direction of movement of the elevator drive cable; wherein the first direction change pulley may include a third pulley wheel, a third rotation axis penetrating the third pulley wheel, a third shaft support bracket arranged to form a 'U' shape when viewed in a planar view and open toward the front where the other end of the support housing is located from the wall surface, with both ends of the third rotation axis connected and wrapping a part of the third pulley wheel, a wall fixing plate fixed to the wall surface so as to protrude toward the room, and a direction change axis that forms an 'L' shape, with one end connected to the wall fixing plate and the other end connected to the rear end of the third shaft support bracket so as to rotate axially in a lateral direction.

[0008] In addition, the above support module may be provided in multiple units on the ceiling, and the multiple support housings may be arranged such that their other ends face a wall, and a second direction change pulley may be provided at each other end to allow a lifting drive cable coming out through the other end of the support housing to move toward the wall parallel to the ceiling.

[0009] Additionally, the support housing is installed to be erected in a straight tube shape, and the guide housing is formed in a 'L' shape when viewed from the side, but has a 'C' shape in its cross-section, and is formed in a tube shape, with one end connected to one end of the guide housing and at least the other end connected near the other end of the support housing, and is arranged to be inclined downward; a moving member including a moving guide ball capable of moving along the inner side of the mechanism moving guide rail; and a first moving guide cable connecting the electric device and the moving member while passing through the open part of the mechanism moving guide rail; are further included so that when the electric device moves downward, the electric device connected through the moving guide ball and the first moving guide cable can be moved adjacent to the support housing according to the downward movement of the moving guide ball.

[0010] In addition, it further includes a second movement guide cable, one end of which is connected to a moving member and is provided along the inner side of the mechanism movement guide rail, and the other end of which is located near the ground; so that the electric mechanism can be moved adjacent to the support housing as the second movement guide cable is pulled.

[0011] According to the present invention, as the fixation of the lifting drive cable is released, the electrical equipment located at a predetermined height automatically descends by its own weight, thereby allowing maintenance of electrical equipment such as lighting fixtures, fire detectors, and CCTVs installed at heights requiring high-altitude work to be performed easily and safely without working at height. Furthermore, after the maintenance work on the electrical equipment is completed, the lifting drive cable is pulled downward so that the electrical equipment can be easily returned to its original position with minimal force, thereby ensuring the safety of the worker while increasing the convenience of the work.

[0012] FIG. 1 is a drawing showing the internal structure of an electric appliance lifting device according to the first embodiment of the present invention,

[0013] FIG. 2 is a drawing showing the combined state between a support module and a guide module applied to an electric appliance lifting device according to the first embodiment of the present invention.

[0014] FIGS. 3 and 4 are drawings showing the state in which a movable pulley applied to the electric appliance lifting device of the present invention is combined with a movable rail groove.

[0015] FIGS. 5 and 6 are drawings showing that an electric appliance can be lowered and returned by the electric appliance lifting device of the present invention according to the first embodiment.

[0016] FIG. 7 is a drawing showing the structure of a first direction-changing pulley applied to an electric appliance lifting device according to the first embodiment of the present invention.

[0017] FIG. 8 is a drawing showing that a plurality of electric appliance lifting devices according to the first embodiment of the present invention are provided, and that lifting drive cables can be gathered together along the ceiling by means of a second direction changing pulley.

[0018] FIGS. 9 to 12 are drawings showing that an electric appliance can be lowered and returned by the electric appliance lifting device of the present invention according to the second embodiment.

[0019] In the present invention, to enable easy maintenance of electrical equipment such as lighting fixtures, fire detectors, and CCTVs installed at heights requiring high-altitude work without working at heights and to ensure the safety of workers, a support module comprising: a support housing formed in the shape of a hollow cylinder with at least one end positioned at a predetermined height from the ground; and a movable pulley provided inside the support housing to move along the longitudinal direction of the support housing; a guide module comprising: a guide housing formed in the shape of a hollow cylinder with at least one end forming an up-and-down direction, with the other end integrally formed with the vicinity of one end of the support housing so that one end is positioned at a height requiring high-altitude work; and a fixed pulley provided inside at least one end and the other end of the guide housing; and a power tension cable connected to an electrical equipment that contains a power line and a tension line receiving power from the outside, with one end fixed near the vicinity of one end of the support housing and the other end able to come into contact with one end of the guide housing via the movable pulley and the fixed pulley. The present invention proposes an electric device lifting device characterized by including: a lifting drive cable in which one end is connected to a movable pulley and the other end is positioned near the ground, and as it is pulled, the movable pulley can be moved toward the other end of the support housing, and the electric device can be fixed so that the pull is not released while in contact with one end of the guide housing, and the movable pulley can be moved toward one end of the support housing so that the electric device moves downward as the fixing is released and the pull is released.

[0020] The scope of the present invention is not limited to the embodiments described below, and various modifications may be made by those skilled in the art within the scope of the technical essence of the present invention.

[0021] Hereinafter, the electric appliance lifting device of the present invention will be described in detail with reference to the attached FIGS. 1 to 12.

[0022]

[0023] As shown in FIGS. 1, 5, 6, 9 to 12, the electric equipment lifting device of the present invention basically includes a support module (100), a guide module (200), an electric equipment (300), a power tension cable (400), and a lifting drive cable (500), and is configured so that the electric equipment (300) can be maintained without high-altitude work.

[0024] The support module (100) includes a support housing (110) formed in the shape of a hollow tube and installed such that at least one end is positioned at a predetermined height from the ground, and a movable pulley (120) provided inside the support housing (110) so as to be moved along the longitudinal direction of the support housing (110).

[0025] The support housing (110) can be formed, for example, in the shape of a straight tube, or in the shape of a cylinder or a polygonal tube (e.g., a square tube, a hexagonal tube). As shown in FIGS. 1, 2, 5 and 6 in the first embodiment, the support housing (110) can be installed parallel to the ceiling so that the entire structure is located at a predetermined height from the ground, and as shown in FIGS. 9 to 12 in the second embodiment, it can be installed standing upright on the ground like a street light support or standing upright along a wall. In the first embodiment, the support housing (110) is positioned horizontally, and in the second embodiment, the support housing (110) can be positioned vertically. In addition, the support housing (110) may have a moving rail groove (111) formed along the longitudinal direction on the inner surface of both walls as shown in FIGS. 3 and 4 to guide the movement of the movable pulley (120) when the movable pulley (120) moves inward.

[0026] The movable pulley (120) is movably coupled to the movable rail groove (111) as shown in FIGS. 3 and 4, and can be moved along the longitudinal direction of the support housing (110), and may include a first pulley wheel (121), a first rotation axis (122), a first shaft support bracket (123), and a cable connecting ring (124). It is preferable that the first pulley wheel (121) be formed with an H-shaped cross-section so that a power tension cable (400) in the form of a flat cable can be stably hung. The first rotation axis (122) is formed in the shape of a rod and penetrates the first pulley wheel (121) so that the first pulley wheel (121) can rotate, and both ends may be positioned on the movable rail groove (111) formed on both side walls of the support housing (110).

[0027] The first shaft support bracket (123) is shaped like a 'U', and the first pulley wheel (121) is positioned on the inner side of the open portion. A first rotation shaft (122) is fixed by passing through the first pulley wheel (121) and having both ends positioned on the moving rail groove (111). As will be described later, the movable pulley (120) moves toward one end of the support housing (110) by the weight of the electric device (300). Therefore, in order to move it toward the other end of the support housing (110), the lifting drive cable (500) must be pulled. To this end, the movable pulley (120) is provided with a cable connecting link (124) to which one end of the lifting drive cable (500) is connected, and the cable connecting link (124) can be connected to the first shaft supporting bracket (123) while being positioned on the opposite side of the first pulley wheel (121) with respect to the first shaft supporting bracket (123). At this time, it is preferable that the cable connecting link (124) be connected to the first shaft supporting bracket (123) so as to be axially rotatably connected to prevent twisting of the lifting drive cable (500) that may occur as the lifting drive cable (500) is pulled.

[0028] The guide module (200) includes a guide housing (210) formed in the shape of a hollow tube with at least one end oriented in the up-and-down direction, and a fixed pulley (220) provided on the inside of the guide housing (210).

[0029] According to the first embodiment described above, when the support housing (110) is installed parallel to the ceiling as shown in FIGS. 1, 2, 5, and 6, the guide housing (210) can form a straight tube shape. Also, according to the second embodiment described above, when the support housing (110) is installed upright as shown in FIGS. 9 to 12, the guide housing (210) can form an L-shaped tube shape when viewed from the side. Furthermore, the other end of the guide housing (210) can be integral with the vicinity of one end of the support housing (110) so that one end is positioned at a height requiring high-altitude work.

[0030] That is, the other end of the guide housing (210) can be completely integrated to form a single body with the vicinity of one end of the support housing (110), and can also be variablely fixed to the support housing (110) so as to be integrated with the vicinity of one end of the support housing (110) or to be integrated with a specific point other than one end of the support housing (110). When the guide housing (210) is variablely fixed to the support housing (110), the support housing (110) must have a structure in which one side in the direction where the guide housing (210) is located is open so that the movement of the electrical device (300) through the power tension cable (400) can be made smooth, as shown in FIG. 2. Accordingly, it is preferable that the variable fixing of the guide housing (210) be applied to the first embodiment described above, which has a structure that can be installed mainly in an indoor space where a ceiling exists.

[0031] For example, according to the first embodiment, when a support housing (110) is installed parallel to the ceiling and a guide housing (210) is formed in a straight tube shape and coupled to the support housing (110) to form an up-and-down direction, the support housing (110) is formed so that a portion of its bottom surface is open along the longitudinal direction, and the guide housing (210) has a structure in which the top and bottom surfaces are open, and a coupling guide wall surface (211) may be formed protruding upwardly on the side walls to partially cover the side walls of the support housing (110). At this time, the guide housing (210) can form an integral part with the support housing (110) as the coupling guide wall surface (211) and the side walls of the support housing (110) are mutually coupled within the range communicating with the support housing (110). As a specific example, the support housing (110) may have a plurality of first bolt fastening holes formed at regular intervals on both side walls along the longitudinal direction, and the coupling guide wall surface (211) may have three second bolt fastening holes formed at intervals equal to the spacing between the plurality of first bolt fastening holes. Accordingly, the guide housing (210) and the support housing (110) can be coupled by adjusting the position of the guide housing (210) so that three of the first bolt fastening holes and three of the second bolt fastening holes can communicate, and then coupling a fastening bolt to pass through the first bolt fastening holes and the second bolt fastening holes simultaneously.

[0032] As illustrated in FIGS. 1, 5, 6, 9 to 12, the fixed pulley (220) may be provided at least on the inner side of one end and the other end of the guide housing (210), and may include a first fixed pulley (220a) provided at one end of the guide housing (210) which is a point adjacent to the electric device (300), and a second fixed pulley (220b) provided at the other end of the guide housing (210) which is a point adjacent to the support housing (110). The second fixed pulley (220b) serves to change the direction of the power tension cable (400) from the support housing (110) to the guide housing (210), and the first fixed pulley (220a) serves to guide the power tension cable (400) so that it can move in a balanced manner. This fixed pulley (220) may include a second pulley wheel, a second rotation axis, and a second axis support bracket. It is preferable that the second pulley wheel, like the first pulley wheel (121), has an H-shaped cross-section so that a power tension cable (400) in the form of a flat cable can be stably attached, and the second rotation axis is formed in the shape of a rod and is provided to pass through the second pulley wheel so that the second pulley wheel can rotate. The second axis support bracket is formed in a 'U' shape, and the second pulley wheel is positioned on the inside of the open portion, and the second rotation axis passing through the second pulley wheel is fixed. Additionally, the second axis support bracket may have one side where the second rotation axis is not fixed coupled to the side wall of the guide housing (210), so that the fixed pulley (220) can be provided inside the guide housing (210).

[0033] The electrical device (300) may be a lighting fixture, a fire detector, a CCTV, etc., and may be installed at a height where high-altitude work is required while in contact with one end of the guide housing (210). This electrical device (300) may include a device housing that forms the outer shape, and the device housing may be formed, for example, in the shape of a lampshade, so that the edge portion contacts one end of the guide housing (210) and the central portion is located inside the one end of the guide housing (210).

[0034] As shown in FIG. 3, the power tension cable (400) includes a power line (410) that receives power from an external source and supplies power to an electric appliance (300), and a tension line (420) that connects the support housing (110) and the electric appliance (300). For example, one end of the power tension cable (400) is fixed near one end of the support housing (110), and the other end is connected to the electric appliance (300) via a movable pulley (120) and a fixed pulley (220). At this time, the tension line (420) may have one end fixed near one end of the support housing (110) and the other end fixed to the electric appliance (300), and the power line (410) may have one end connected to a power supply device provided in the ceiling, underground, or within the support housing (110), and the other end connected to the electric appliance (300). This power tension cable (400) may be formed in the shape of a circular cable, but it is preferable to form it in the shape of a flat cable, considering movement through a movable pulley (120) and a fixed pulley (220), and having multiple power lines (410) and multiple tension lines (420) inside.

[0035] As shown in FIGS. 5, 6, 9 to 12, the lifting drive cable (500) has one end connected to a movable pulley (120) and the other end located near the ground, so that at least one end is located inside the support housing (110) and the other end is located outside the support housing (110) and can be fixed near the ground. At this time, the fixing of the other end of the lifting drive cable (500) can be done on the outer surface of the other end of the support housing (110) or the ground, etc., using various fixing members such as a ring, pin, or bobbin.

[0036] When the fixing of the other end of the lifting drive cable (500) is released, as shown in FIGS. 5 and FIGS. 10, the movable pulley (120) can be moved toward one end of the support housing (110) by the self-weight of the electric device (300), so that a pull release can be made that moves upward together with the movable pulley (120). Additionally, when the pull is released, the lifting drive cable (500) can be pulled downward manually or automatically, and as shown in FIGS. 6 and 9, as the lifting drive cable (500) is pulled, the movable pulley (120) can be moved toward the other end of the support housing (110) so that the electric device (300) comes into contact with one end of the guide housing (210), and the other end of the lifting drive cable (500) can be fixed so that the pull is not released while the electric device (300) is in contact with one end of the guide housing (210).

[0037] As described above, in the present invention, since the electrical device (300) automatically descends by its own weight when the fixing of the lifting drive cable (500) is released, maintenance of electrical devices (300), such as lighting fixtures, fire detectors, and CCTVs installed at heights requiring high-altitude work, can be easily and safely performed without high-altitude work. In addition, after the maintenance work on the electrical device (300) is completed, the lifting drive cable (500) is pulled downward so that the electrical device (300) can be easily returned to its original position with minimal force, thereby ensuring the safety of the worker while increasing the convenience of the work.

[0038] In addition, as in the first embodiment described above, when the support housing (110) is installed parallel to the ceiling, the support housing (110) may be installed such that its other end is located near the wall surface connected to the ceiling. The position where the elevator drive cable (500) is installed along the wall surface can be adjusted by taking into account situations where the other end of the elevator drive cable (500) cannot be located near the ground surface due to obstacles located on the wall or floor surface of the place where the invention is installed, and situations where multiple electrical equipment lifting devices are installed.

[0039] To this end, the present invention may further include a first direction change pulley (600) installed at a height corresponding to the support housing (110) among the wall surfaces adjacent to the other end of the support housing (110) as shown in FIG. 5 and FIG. 7. The first direction change pulley (600) guides the change of the movement direction of the elevator drive cable (500) and may include a third pulley wheel (610), a third rotation axis (620), a third axis support bracket (630), a wall fixing plate (640), and a direction change axis (650) as shown in FIG. 7.

[0040] The third pulley wheel (610) can be configured so that the lifting drive cable (500) can be stably seated on the inside along the circumference, and the third rotation shaft (620) is formed in the shape of a rod and is provided to pass through the third pulley wheel (610) so that the third pulley wheel (610) can rotate. The third shaft support bracket (630) forms a 'U' shape when viewed from a planar view, and the third pulley wheel (610) is positioned on the inside of the open part to wrap around a part of the third pulley wheel (610), and both ends of the third rotation shaft (620) are connected. This third shaft support bracket (630) is arranged to be open toward the front from the wall surface. The wall fixing plate (640) forms a plate shape and is fixed to the wall surface so as to protrude toward the front where the other end of the support housing (110) is located from the wall surface. The direction change shaft (650) is formed in the shape of an 'L', with one end connected to the wall fixing plate (640) and the other end connected to the rear end of the third shaft support bracket (630). At this time, the direction change shaft (650) is connected to the wall fixing plate (640) so as to rotate axially in the lateral direction, thereby allowing the third shaft support bracket (630) connected thereto to rotate axially in the lateral direction, so that the position where the elevator drive cable (500), which has been changed direction by the third pulley wheel (610), is installed along the wall surface can be adjusted.

[0041] Accordingly, for example, when multiple electric equipment lifting devices are installed, each lifting drive cable (500) can be gathered together along the wall through the first direction change pulley (600) included in each electric equipment lifting device, thereby allowing the vertical movement of multiple electric equipment (300) to be controlled at a certain point.

[0042] As illustrated in FIG. 8, when a plurality of support modules (100) are provided in a plurality on the ceiling, a plurality of support housings (110) are arranged such that their other ends face one wall, and a second direction change pulley (130) may be provided at each other end. The second direction change pulley (130) may include, for example, a fourth pulley wheel, a fourth rotation axis, and a fourth axis support bracket, and serves to change the direction of the lifting drive cable (500) so that the lifting drive cable (500) coming out through the other end of each support housing (110) moves toward one wall parallel to the ceiling.

[0043] The fourth pulley wheel can be configured so that the lifting drive cable (500) can be stably seated on the inner side along the circumference, and the fourth rotation axis is formed in the shape of a rod and is provided to pass through the fourth pulley wheel so that the fourth pulley wheel can rotate. The fourth axis support bracket forms a 'U' shape when viewed from a planar view, and the fourth pulley wheel is positioned on the inner side of the open part to surround a part of the fourth pulley wheel, and both ends of the fourth rotation axis are connected. This fourth axis support bracket can be connected to the other side wall of the support housing (110) so that the open part faces one side wall of the support housing (110), and is arranged so that the fourth pulley wheel can rotate around the fourth rotation axis arranged vertically.

[0044] Accordingly, through the second direction change pulley (130) provided at the other end of the support housing (110), even if the present invention is provided in multiple units on the ceiling, all of the multiple lifting drive cables (500) can be directed toward one wall surface, so that multiple electrical devices (300) can be easily controlled.

[0045] Meanwhile, as in the second embodiment described above, when the support housing (110) is installed upright on the ground in a straight tube shape and the guide housing (120) is in an L-shape (i.e., in a structure such as a street lamp), the present invention may further include a device movement guide rail (710), a moving member (720), and a first movement guide cable (730) as shown in FIGS. 9 to 12, in order to allow an electric device (300) provided at one end of the guide housing (120) and spaced apart from the support housing (110) to move adjacent to the support housing (110) when it moves downward.

[0046] The mechanism moving guide rail (710) may be formed in the shape of a tube, for example, having a cross-section that is shaped like a 'C', with one end connected to one end of the guide housing (210) and at least the other end connected to the vicinity of the other end of the support housing (110), and may be arranged to be inclined downward. It is also preferable that the mechanism moving guide rail (710) be arranged so that the open part faces the electric mechanism (300). The moving member (720) includes a moving guide ball (721) that can move along the inner side of the mechanism moving guide rail (710), and the first moving guide cable (730) passes through the open part of the mechanism moving guide rail (710) and connects the electric mechanism (300) and the moving member (720), and is configured to have a length sufficient to connect the electric mechanism (300), which is in contact with one end of the guide housing (210), and the moving member (720) located near one end of the guide housing (210).

[0047] Accordingly, as illustrated in FIG. 10, when the electric device (300) moves downward due to its own weight, the movement guide ball (721) connected to the electric device (300) by the first movement guide cable (730) also moves downward along the device movement guide rail (710), so that the electric device (300) can be moved to be adjacent to the support housing (110).

[0048] In addition, in the second embodiment, considering the case where the electric device (300) does not move downward due to its own weight, a second movement guide cable (740) may be further included. The second movement guide cable (740) may be configured such that one end is connected to the movement member (720) and is provided along the inner side of the device movement guide rail (710), and the other end is located near the ground, so that downward pulling can be performed manually or automatically. At this time, the movement guide member (720) is configured such that the first movement guide cable (730) and the second movement guide cable (740) are connected in different directions.

[0049] Accordingly, as shown in FIG. 12, as the second moving guide cable (740) is pulled, the electric device (300) can be moved downward, and the electric device (300) moving downward can be moved to be adjacent to the support housing (110).

[0050] Through the second embodiment as described above, electric equipment (300), such as streetlights, can be maintained without controlling roads or sidewalks.

[0051]

[0052] [Explanation of the symbol]

[0053] 100 : Support module 110 : Support housing

[0054] 111 : Moving rail groove 120 : Moving pulley

[0055] 121: First pulley 122: First pivot point

[0056] 123: 1st shaft support bracket 124: Cable connector

[0057] 130 : Second direction change pulley

[0058] 200 : Guide Module 210 : Guide Housing

[0059] 211 : Connecting guide wall 220 : Fixed pulley

[0060] 220a: 1st fixed pulley 220b: 2nd fixed pulley

[0061] 300 : Electric appliances

[0062] 400 : Power tension cable 410 : Power cord

[0063] 420 : Tension line

[0064] 500 : Elevator drive cable

[0065] 600: 1st direction change pulley 610: 3rd pulley wheel

[0066] 620: Third rotation axis 630: Third axis support bracket

[0067] 640 : Wall-mounting plate 650 : Direction change axis

[0068] 710 : Mechanism movement guide rail 720 : Moving member

[0069] 721 : Movement guidance ball 730 : 1st movement guidance cable

[0070] 740 : 2nd mobile guidance cable

Claims

1. A support module (100) comprising a support housing (110) formed in the shape of a hollow container and installed so that at least one end is positioned at a predetermined height from the ground, and a movable pulley (120) provided inside the support housing (110) so as to move along the longitudinal direction of the support housing (110); A guide module (200) comprising a guide housing (210) in which at least one end is formed in the shape of a hollow tube with an upper and lower direction and the other end is integral with the vicinity of one end of a support housing (110) so that one end is positioned at a height requiring high-altitude work, and a fixed pulley (220) provided at least on the inner side of the one end and the other end of the guide housing (210); A power tension cable (400) that includes a power line (410) and a tension line (420) receiving power from the outside, with one end fixed near one end of a support housing (110) and the other end connected to an electric device (300) that can come into contact with one end of a guide housing (210) via a movable pulley (120) and a fixed pulley (220); and A lifting drive cable (500) having one end connected to a movable pulley (120) and the other end positioned near the ground, wherein the movable pulley (120) can be moved toward the other end of the support housing (110) as it is pulled, and can be fixed so that the pull is not released while the electric device (300) is in contact with one end of the guide housing (210), and wherein the movable pulley (120) can be moved toward one end of the support housing (110) so that the electric device (300) moves downward as the fixation is released and the pull is released; An electric appliance lifting device characterized by including 2. In Paragraph 1, The above support housing (110) has a movable rail groove (111) formed along the longitudinal direction on the inner surface of both side walls, and The above-mentioned movable pulley (120) comprises a first pulley wheel (121), a first rotational shaft (122) that penetrates the first pulley wheel (121) and has both ends positioned on the movable rail groove (111), a first shaft support bracket (123) that forms a 'U' shape, is fixed to the first rotational shaft (122), and surrounds a part of the first pulley wheel (121), and a cable connecting ring (124) that is positioned on the opposite side of the first pulley wheel (121) with respect to the first shaft support bracket (123), is axially coupled to the first shaft support bracket (123), and has one end of a lifting drive cable (500) connected thereto.

3. In Paragraph 1, The above support housing (110) is installed parallel to the ceiling so that the other end is located near the wall surface connected to the ceiling, and The above wall surface further includes a first direction change pulley (600) installed at a height corresponding to the support housing (110) to guide the change of the movement direction of the elevator drive cable (500); The above first direction change pulley (600) is, An electric equipment lifting device characterized by comprising a third pulley wheel (610), a third rotation axis (620) penetrating the third pulley wheel (610), a third shaft support bracket (630) which is arranged to form a 'U' shape when viewed from a planar view and is open toward the front where the other end of the support housing (110) is located from the wall surface, and which has both ends of the third rotation axis (620) connected and covers a part of the third pulley wheel (610), a wall fixing plate (640) fixed to the wall surface so as to protrude toward the front, and a direction changing shaft (650) which has one end connected to the wall fixing plate (640) and the other end connected to the rear end of the third shaft support bracket (630) so as to form an 'L' shape and rotate axially in the lateral direction.

4. In Paragraph 2, The above support module (100) is provided in multiple numbers on the ceiling, An electric equipment lifting device characterized by a plurality of support housings (110) arranged such that one end faces a wall, and a second direction change pulley (130) provided at each end so that a lifting drive cable (500) coming out through the other end of the support housing (110) moves toward a wall parallel to the ceiling.

5. In Paragraph 1, The above support housing (110) is installed to be erected in a straight tube shape, and The above guide housing (210) forms a tube shape that is shaped like an 'ㄱ' when viewed from the side, A mechanism moving guide rail (710) that forms a tube shape with a cross section in the shape of a 'C', with one end connected to one end of a guide housing (210) and at least the other end connected to the vicinity of the other end of a support housing (110) and arranged at a downward slope; A moving member (720) including a moving guide ball (721) that can move along the inner side of the above-mentioned mechanism moving guide rail (710); and Further including a first movement guide cable (730) that connects the electric device (300) and the moving member (720) while passing through the open portion of the above-mentioned device movement guide rail (710), An electric device lifting device characterized in that, when the electric device (300) moves downward, the electric device (300) connected through the moving guide ball (721) and the first moving guide cable (730) can be moved to be adjacent to the support housing (110) according to the downward movement of the moving guide ball (721).

6. In Paragraph 5, Further including a second movement guide cable (740), one end of which is connected to a movable member (720) and is provided along the inner side of a mechanism movement guide rail (710), and the other end of which is located near the ground; An electric device lifting device characterized in that the electric device (300) can be moved adjacent to the support housing (110) as the second moving guide cable (740) is pulled.

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