Protective tube installation device

Abstract

The present invention relates to a protective pipe installation device developed to enable installation via an indirect live-line method during protective work on a jumper line or a down line. A protective pipe installation device according to one embodiment of the present invention may include: a frame part having a curved surface formed on one side to surround the outer circumference of the protective pipe; a gear part rotatably coupled to the frame part, the input shaft of which is coupled to an external rotating tool and rotated by the rotation of the rotating tool; and a protective pipe transfer roller that rotates together with the gear part and is connected to the protective pipe to move the protective pipe.

Description

Technology Field

[0001] The present invention relates to a protective pipe installation device, and more specifically, to a protective pipe installation device developed to enable installation via an indirect live-line method during protective work on jumper wires or downlines. Background Technology

[0002] Every year, accidents involving construction workers being electrocuted after coming into contact with power facilities located near new or expanded construction sites continue to occur.

[0003] To prevent this, when power lines are present near new or expanded construction sites, a qualified electrician uses an insulated aerial work platform to install protective conduits on the power lines by directly contacting them while wearing rubber insulated gloves and rubber sleeves; this method is called the direct live-line protective conduit installation method. (See Fig. 1)

[0004] In this case, direct live-line work carries a very high risk of safety accidents, so it is performed only in limited situations where it is difficult to cut off power, such as with transmission and distribution facilities, and workers performing direct live-line work must use insulating protective equipment or safety gear.

[0005] Meanwhile, as the direct live-line method was completely abolished in January 2022, it is unavoidable for workers to work in close proximity to install the building protection pipes and jumper wire protection pipes that were previously installed using the direct live-line method. Therefore, the entire section must be de-energized (turned off) and the building protection pipes and jumper wire protection pipes must be installed in a de-energized state.

[0006] However, implementing a section ceasefire (diagonal line) requires lengthy consultations regarding the power outage, making it very difficult to protect power lines in accordance with the schedules of urgent construction sites. The problem to be solved

[0007] The present invention was devised to solve the aforementioned problems, and aims to provide a protective pipe installation device developed to enable installation via an indirect live-line method when installing a protective pipe on a jumper wire. means of solving the problem

[0008] A protective tube installation device according to an embodiment of the present invention for achieving the above-described purpose may include: a frame portion having a curved surface formed on one side to surround the outer circumference of the protective tube; a gear portion rotatably coupled to the frame portion, the input shaft being coupled to an external rotating tool and rotated by the rotation of the rotating tool; and a protective tube transfer roller that rotates together with the gear portion and is connected to the protective tube to move the protective tube.

[0009] Here, the frame portion includes a first frame and a second frame joined with a joining surface in between, and a plurality of support rollers supporting the protective tube may be arranged on the joining surface.

[0010] At this time, each of the first frame and the second frame may include a curved protective tube support portion that supports the outer circumference of the protective tube.

[0011] Additionally, each of the first frame and the second frame may further include a protective tube insertion part, which is provided at each of the two ends of the protective tube support part and into which the cut ends of the protective tube are inserted.

[0012] Meanwhile, at least a portion of the outer circumference of the support roller may protrude to the outside of the protective tube support portion and the protective tube insertion portion.

[0013] In addition, the gear portion comprises a first bevel gear that is coaxially coupled with the rotating tool and rotates together with the rotation of the rotating tool; and a second bevel gear that meshes vertically with the first bevel gear, and each of the first frame and the second frame may have a first gear groove in which the first bevel gear is received and a second gear groove connected to the first gear groove and in which the second bevel gear is received formed.

[0014] The above protective tube transfer roller is coupled to rotate coaxially with the second bevel gear, and has an alternating projection and groove structure formed on its outer surface to engage with the corrugated shape of the protective tube, so that it can be arranged to mesh with the corrugations on the outer surface of the protective tube.

[0015] It may further include a tool insertion part that is arranged to surround the input shaft of the gear part and into which the rotary tool is inserted to be coupled with the input shaft. Effects of the invention

[0016] According to the present invention, when installing a protective pipe on a jumper line (or down line), using the developed installation device ensures that the worker and the jumper line are sufficiently separated, thus providing the advantage of enabling work even when power is supplied without interruption.

[0017] Further scopes of the applicability of the present invention will become apparent from the following specific details for carrying out the invention. However, since various changes and modifications within the spirit and scope of the present invention are clearly understood by those skilled in the art, specific embodiments, such as those included in the following specific details for carrying out the invention, should be understood as being given merely as examples. Brief explanation of the drawing

[0018] Figure 1 shows the installation of a protective pipe using the conventional direct live-line method. FIG. 2 is a front view of a protective pipe installation device according to an embodiment of the present invention. Figure 3 shows only the first frame separated in an embodiment of the present invention. FIG. 4 shows the remaining configuration with the second frame separated in an embodiment of the present invention. FIG. 5 is a perspective view of a support roller in an embodiment of the present invention. FIG. 6 shows a first bevel gear in an embodiment of the present invention. Figure 7 shows the combined appearance of the second bevel gear and the protective tube transfer roller in an embodiment of the present invention. Figure 8 shows the process of installing a protective tube on a jumper wire using a protective tube installation device according to an embodiment of the present invention. Specific details for implementing the invention

[0019] An embodiment of the present invention will be described in detail below with reference to the attached drawings.

[0020] The present invention is capable of various modifications and may have various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. This is not intended to limit the present invention to specific embodiments, and should be interpreted to include all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention.

[0021] In describing the present invention, terms such as "first," "second," etc., may be used to describe various components, but said components may not be limited by said terms. Such terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component.

[0022] The term "and / or" may include a combination of multiple related listed items or any of the multiple related listed items.

[0023] When it is stated that one component is "connected" or "connected" to another component, it can be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it can be understood that there are no other components in between.

[0024] The terms used in this application are used merely to describe specific embodiments and are not intended to limit the invention. Singular expressions may include plural expressions unless the context clearly indicates otherwise.

[0025] In this application, terms such as “comprising” or “having” are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not excluding in advance the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0026] Unless otherwise defined, all terms used herein, including technical or scientific terms, may have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries may be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and may not be interpreted in an ideal or overly formal sense unless explicitly defined in this application.

[0027] In addition, the following embodiments are provided to explain more completely to those with average knowledge in the industry, and the shapes and sizes of the elements in the drawings may be exaggerated for clearer explanation.

[0028] FIG. 2 is a front view of a protective pipe installation device according to an embodiment of the present invention, FIG. 3 shows only the first frame separated in an embodiment of the present invention, FIG. 4 shows the remaining configuration with the second frame separated in an embodiment of the present invention, FIG. 5 is a perspective view of a support roller in an embodiment of the present invention, FIG. 6 shows a first bevel gear in an embodiment of the present invention, and FIG. 7 shows the second bevel gear and the protective pipe transfer roller combined in an embodiment of the present invention.

[0029] Referring to FIGS. 2 to 7, a protective pipe installation device (10) according to an embodiment of the present invention may include a frame part (100), a gear part (200), and a protective pipe transfer roller (300).

[0030] The frame portion (100) is configured to surround the outer circumference of the protective tube. To this end, a curved surface corresponding to the curved surface formed on the outer circumference of the protective tube may be formed on one side of the frame portion (100).

[0031] The frame portion (100) may include a first frame (110) and a second frame (120). The first frame (110) and the second frame (120) may be formed symmetrically with respect to each other with a joining surface (110a) in between and joined. The joining surface (110a) is formed on the first frame (110) and the second frame (120), respectively, and the first frame (110) and the second frame (120) may be joined by butting their respective joining surfaces together. Known fastening means, such as bolts, may be used for the joining.

[0032] A groove may be formed on the joining surface of each frame (110, 120) to accommodate the rotation axis (420) of the support roller (400) to be described later and the rotation axis (210a, 220a) of the gear part (200). That is, the frame part (100) includes the first frame (110) and the second frame (120), and by forming a groove on the joining surface (110a), a space for accommodating the rotation axes may be provided.

[0033] The protective pipe installation device (10) according to an embodiment of the present invention may further include a plurality of support rollers (400).

[0034] Each of the plurality of support rollers (400) can be placed on the joining surface (110a). More specifically, the support roller (400) consists of a cylindrical roller body (410) and a rotation axis (420) connected to the upper and lower center of the roller body (410).

[0035] Each support roller (410) is placed in a support roller groove (114) formed on a joining surface (110a). The support roller (410) is placed in a support roller groove (113) formed on each of the first frame (110) and the second frame (120), and by joining the first frame (110) and the second frame (120), the support roller (400) can be rotated on the joining surface (110a) of the first frame (110) and the second frame (120).

[0036] Meanwhile, each of the first frame (110) and the second frame (120) may include a curved protective tube support member (111) that supports the outer circumference of the protective tube. The protective tube support member (111) is formed as a curved surface having a predetermined curvature similar to the outer shape of the protective tube.

[0037] Each of the first frame (110) and the second frame (120) may further include a protective tube insertion part (112) into which the cut ends of the protective tube are inserted. More specifically, the protective tube insertion part (112) may be provided at each of the two ends of the protective tube support part (111). The protective tube insertion part (112) is formed in the shape of a groove into which the protective tube can be fitted.

[0038] The protective tube insertion part (112) is formed in the shape of a groove extending outward from the radius of curvature of the protective tube support part (111). The protective tube has a projection protruding outward from the radius of curvature of the protective tube, and the projection can be fitted into the protective tube insertion part (112).

[0039] One side of the protective tube insertion part (112) is connected to the protective tube support part (111), and the other side is connected to the protective tube fixing part (113).

[0040] The protective tube fixing part (113) is connected to the protective tube insertion part (112) and is defined as a surface that protrudes and extends toward the protective tube support part (111). More specifically, if a virtual ellipse is assumed by extending the curved surface formed by the protective tube support part (111), the protective tube fixing part (113) takes the form of protruding inwardly toward the ellipse.

[0041] As such, the protective tube is prevented from escaping from the protective tube insertion part (112) by the protective tube fixing part (113) which protrudes inwardly from the radius of curvature.

[0042] That is, in the embodiment of the present invention, once a protective tube is inserted into the protective tube insertion part (112), it can be stably fixed and supported, and a situation in which the protective tube escapes from the device (10) during operation is prevented.

[0043] Meanwhile, at least a portion of the outer circumference of the support roller (400) may protrude to the outside of the protective tube support portion (111) and the protective tube insertion portion (112). More specifically, a portion of one side of the roller body (410) of the support roller (400) may protrude to the outside of the protective tube support portion (111) and the protective tube insertion portion (112).

[0044] At this time, the imaginary tangent drawn in the direction of rotation on the circumferential surface of the support roller (410) can be positioned so as to be perpendicular to the direction in which the corrugations of the protective tube are formed, based on the state in which the protective tube is supported and inserted in the protective tube support part (111) and the protective tube insertion part (112).

[0045] With this arrangement, when the protective tube moves up and down, the protruding surface of the support roller (400) rubs against the protective tube, causing the support roller (400) to rotate, and the movement of the protective tube is also made more natural due to the rotation of the support roller (400).

[0046] If the support roller (400) is not provided, when the protective tube moves up and down, a large frictional force is applied to the protective tube support part (111) and the protective tube insertion part (112) compared to when the support roller (400) is provided, and the movement of the protective tube is hindered.

[0047] In addition, when the vertical movement of the protective tube is described in this specification, the vertical direction means a direction that is orthogonal to both the axis of the first bevel gear (210) and the rotation axis of the second bevel gear (220) based on the bevel gears (210, 220) to be described later.

[0048] The gear portion (200) can be rotatably coupled to the frame portion (100).

[0049] The input shaft of the gear unit (200) is coupled with an external rotating tool and can be rotated by the rotation of the rotating tool.

[0050] More specifically, the gear portion (200) may include a first bevel gear (210) that is coaxially coupled with the rotary tool and rotates together with the rotation of the rotary tool, and a second bevel gear (220) that is vertically meshed with the first bevel gear (210).

[0051] At this time, the first bevel gear (210) corresponds to the input side that receives rotational force, and the second bevel gear (220) corresponds to the output side that receives rotational force from the first bevel gear (210), crosses the rotation axis, and transmits the directionally crossed rotational force to the protective tube. Here, the input axis of the gear unit (200) described above refers to the rotation axis (210a) of the first bevel gear (210).

[0052] Meanwhile, the rotary tool connected to the first bevel tool (210) may be equipment that rotates manually by external force provided by a worker, or equipment that rotates automatically by being connected to a power device that generates rotational force.

[0053] In each of the first frame (110) and the second frame (120), a first gear groove (115) in which a first bevel gear (210) is received and a second gear groove (116) connected to the first gear groove (115) in which a second bevel gear (220) is received may be formed.

[0054] The second gear groove (116) is connected to the protective tube support (111). The second gear groove (116) is connected vertically to the first gear groove (115).

[0055] On the joint surface of the first frame (110) and the second frame (120), a first gear shaft groove (117) in which the rotation axis (210a) of the first bevel gear (210) is received, and a second gear shaft groove (118) in which the rotation axis (220a) of the second bevel gear (220) is received are formed.

[0056] Through this structure, each bevel gear (210, 220) can be axially supported after the first frame (110) and the second frame (120) are combined. Based on this axial support, each bevel gear (210, 220) rotates around its respective rotation axis (210a, 220a) in the first gear groove (115) and the second gear groove (116).

[0057] The protective tube transfer roller (300) is configured to rotate together with the gear part (200) as it rotates and is connected to the protective tube to move the protective tube.

[0058] More specifically, the protective tube transfer roller (300) can be coaxially coupled with the second bevel gear (220). That is, the protective tube transfer roller (300) and the second bevel gear (220) can rotate together at the same angular velocity while sharing the same rotation axis (210a, 220a).

[0059] The rotational diameter of the protective tube transfer roller (300) may be larger than the rotational diameter of the second bevel gear (220). More specifically, based on a virtual ellipse extending the curved surface formed by the previously assumed protective tube support (111), the outer surface of the protective tube transfer roller (300) may come into contact with the virtual ellipse or protrude inwardly from the ellipse. On the other hand, the outer surface of the second bevel gear (220) is positioned outside the virtual ellipse.

[0060] Through this structure, the rotation of the second bevel gear (220) does not affect the protective tube, and only the protective tube transfer roller (300) is connected to the protective tube and can rotate the protective tube.

[0061] The protective tube transfer roller (300) may be arranged so as to engage with the outer surface folds of the protective tube by having alternating protrusions and groove structures formed on its outer surface to interlock with the fold shape of the protective tube. The protective tube transfer roller (300) may be formed in a shape similar to a spur gear.

[0062] Through this structure, when the second bevel gear (220) rotates, the protective tube transfer roller (300) rotates together, and the protective tube engaged with the protective tube transfer roller (300) can also be moved in the up and down direction.

[0063] The protective tube installation device (10) according to an embodiment of the present invention may further include a tool insertion part (500) that is arranged to surround the input shaft of the gear part (200) and into which a rotating tool is inserted to be coupled with the input shaft.

[0064] When the rotary tool is inserted into the tool insertion part (500) and coupled with the input shaft of the gear part (200), that is, the rotation shaft (210a) of the first bevel gear (210), the rotary tool rotates and the first bevel gear (210) can rotate. The rotation of the first bevel gear (210) is transmitted to the second bevel gear (220), and the second bevel gear (220) moves the protective tube.

[0065] Thus, the worker can move a protective tube located at a predetermined distance from the worker simply by operating a rotary tool.

[0066] Figure 8 shows the process of installing a protective tube on a jumper wire using a protective tube installation device according to an embodiment of the present invention.

[0067] Referring to Fig. 8, the installation process of the protective pipe is explained as follows.

[0068] First, a protective tube cut longitudinally is prepared and spread apart on both sides based on the cutting line (protective tube entrance), and then the protrusions provided at both ends of the spread protective tube are inserted into the protective tube insertion part (112). A rotary tool can be connected to the tool insertion part (500) before or immediately after this. (See FIG. 8 (a))

[0069] Next, connect a protective tube with an open opening to the jumper line or down line to be protected by the protective tube. (Refer to Fig. 8 (b))

[0070] Subsequently, when the operator rotates the rotary tool, the protective tube is installed in a manner that wraps around the jumper line or the lowering line as it rises or falls in the vertical direction. At this time, as previously described, the first bevel gear (210) rotates due to the rotation of the rotary tool, and the second bevel gear (220), which is engaged vertically with the first bevel gear (210), rotates, causing the protective tube transfer roller (300), which is coaxially connected to the second bevel gear (220), to rotate. Since the protective tube transfer roller (300) is connected to the corrugations of the protective tube, the protective tube can be raised or lowered depending on the rotation direction of the rotary tool. (See FIG. 8 (c))

[0071] Through this process, the protective pipe is completed on the jumper line or down line. (See Fig. 8 (d))

[0072] As described above, according to the present invention, when installing a protective pipe on a jumper line (or down line), using the developed installation device ensures that the worker and the jumper line are sufficiently separated, thus providing the advantage of enabling work even when power is supplied without interruption.

[0073] Meanwhile, although the present invention has been described by limited embodiments and drawings, the present invention is not limited to the above embodiments, and various modifications and variations are possible from this description by those skilled in the art to which the present invention belongs. Accordingly, the technical concept of the present invention should be understood only by the claims, and all equivalent or analogous variations thereof shall be considered to fall within the scope of the technical concept of the present invention. Explanation of the symbols

[0074] 10: Protective pipe installation device 100: Frame section 110: 1st frame 110a : Bonding surface 111: Protective pipe support 112: Protective tube insertion part 113: Protective pipe fixing part 114: Support roller groove 115: 1st gear groove 116: Second gear groove 117: 1st gear shaft groove 118: Second gear shaft groove 120: 2nd frame 200: Gear section 210: First bevel gear 210a: Rotation axis 220: Second bevel gear 220a: Rotation axis 300: Protective pipe transfer roller 400: Support roller 410: Roller body 420: Rotation axis 500: Tool insert

Claims

Claim 1 A frame portion having a curved surface formed on one side to wrap around the outer circumference of the protective tube; a gear portion rotatably coupled to the frame portion, with an input shaft coupled to an external rotating tool and rotated by the rotation of the rotating tool; and a protective tube transfer roller that rotates together with the gear portion and is connected to the protective tube to move the protective tube. A protective tube installation device comprising: a tool insertion part arranged to surround the input shaft of the gear part and into which the rotary tool is inserted to be coupled with the input shaft; wherein the frame part comprises a first frame and a second frame coupled with a coupling surface between them, and a plurality of support rollers supporting the protective tube are arranged on the coupling surface; wherein the gear part comprises a first bevel gear that is coaxially coupled with the rotary tool and rotates together with the rotation of the rotary tool; and a second bevel gear that meshes vertically with the first bevel gear, and wherein each of the first frame and the second frame has a first gear groove in which the first bevel gear is received and a second gear groove connected to the first gear groove and in which the second bevel gear is received.

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