Crossarm for installation of angle poles in distribution lines

Abstract

The present invention relates to a cross member for installing an angle pole of a power distribution line, which is used for poles installed to support power transmission and distribution lines, particularly for angle poles installed at points where the wiring direction of the power distribution line changes. More specifically, the invention relates to a cross member for installing an angle pole of a power distribution line that can precisely and flexibly set the connection direction and position of the power distribution line at the installation site and securely fix it. To this end, one embodiment of the present invention comprises a base plate fixed to an angle column, a plurality of plate slots spaced apart from each other at a predetermined angle centered on the angle column on the base plate, a support arm selectively fitted into each of the plate slots, and a power line fixing part fixed to the free end of the support arm. Each of the plate slots is rotatably connected to the base plate through a hinge pin and is composed of a rectangular prism having a square hole. The support arm is formed as a square tube that is fitted loosely into the square hole of the plate slot and rotates together with the plate slot around the hinge pin. The support arm and the plate slot are fastened and fixed to the base plate through an angle adjustment bolt that passes through them. The power line fixing part is characterized by having a fixing part slot of a rectangular prism having a square hole that is fitted loosely into the free end of the support arm and bolted.

Description

Technology Field

[0001] The present invention relates to a cross member for installing an angle pole of a power distribution line, which is used for poles installed to support power transmission and distribution lines, particularly for angle poles installed at points where the wiring direction of the power distribution line changes. More specifically, the invention relates to a cross member for installing an angle pole of a power distribution line that can precisely and flexibly set the connection direction and position of the power distribution line at the installation site and securely fix it. Background Technology

[0002] Generally, power transmission and distribution lines are installed using utility poles, which serve as supporting structures. Unlike sections where distribution lines are routed in a straight line, angle poles are specially installed in sections where the direction changes. Angle poles require a structure capable of withstanding the tension and loads caused by changes in direction of the distribution lines, safely supporting the lines, and allowing for direction changes. Previously, a method was used to change the direction of distribution lines at angle poles by installing multiple brackets vertically and connecting them with jumper wires.

[0003] However, this method caused problems such as increased costs due to the increased number of installed brackets, the inconvenience and longer working hours of construction, and aesthetic degradation.

[0004] Various distribution line direction switching and variable devices have been proposed to improve upon the problems of the aforementioned conventional technology.

[0005] For example, there have been attempts to accommodate changes in angle without two-stage construction by forming the crossarm connection part at an angle on the band connected to the utility pole so that the crossarm spreads outward from the center of the utility pole. While this method has the effect of simplifying the construction procedure, it has the limitation that it is difficult to flexibly respond to various angle requirements at the installation site because the angle adjustment range is fixed by the angled surface of the crossarm band.

[0006] In addition, a device has been proposed to reduce the number of crossarms by providing two distribution line fixing plates to the fixed part connected to the crossarm so that the two distribution lines are connected at the same height. While this device has advantages in terms of reducing the number of crossarms and ease of construction, it lacks flexibility for application when various angle changes are required because the provided angle and position depend on a fixed form.

[0007] There are devices that maintain the bending angle of the wire through a bending arm and an angle-changing connection, but the angle-changing mechanism or structural complexity may limit field application.

[0008] Furthermore, there have been attempts to actively vary the direction and position of power distribution lines using power devices. This method enables relatively precise position and angle adjustment by including a mover (including a motor and gears) that moves the central body along the crossarm and a second rotary motor that adjusts the angle between connecting bodies. However, such power-based variable devices had disadvantages, including a complex structure and increased manufacturing costs; vulnerability to external environmental changes and a risk of failure due to the use of electrical and electronic components such as motors, controllers, and sensors; and complex maintenance after installation. Additionally, they may require a separate power supply or additional work at the installation site.

[0009] Therefore, the distribution line direction variable devices proposed to date still needed improvement in terms of angle adjustment flexibility, precision, ease of installation and maintenance, structural stability, and economic feasibility.

[0010] There was an urgent need to develop a novel and efficient variable direction device for power distribution lines that could respond flexibly and precisely to various angles required at installation sites, particularly large angle changes, without relying on complex and costly power systems, and could robustly maintain the set angle against external loads.

[0011] <Prior Art Literature Search>

[0012] Reference 1: Registered Patent Publication No. 10-0739043

[0013] Reference 2: Registered Patent Publication No. 10-2775556

[0014] Reference 3: Registered Patent Publication No. 10-2193827

[0015] Reference 4: Registered Patent Publication No. 10-2291648

[0016] Reference 5: Registered Patent Publication No. 10-1519549 The problem to be solved

[0017] The present invention was developed in consideration of conventional problems. The objective of the present invention is to provide a clamp for installing angle posts for power distribution lines that enables precise fine-tuning of angles at each of the multiple connection points provided on the base plate, thereby resolving the limitations of conventional technology, such as providing only fixed angles, lacking adjustment flexibility and precision, and relying on complex and high-cost power systems, in angle posts where the direction of power distribution lines is required. This is achieved by providing a unique mechanical mechanism that allows for precise fine-tuning of angles at each connection point, enabling the setting of various wiring directions required at the installation site to be much more flexible and accurate than existing methods and to be securely fixed. means of solving the problem

[0018] A cross member for installing an angle post of a power distribution line according to one embodiment of the present invention for achieving the above objective comprises a base plate fixed to the angle post, a plurality of plate slots spaced apart from the base plate at a predetermined angle centered on the angle post, a support arm selectively fitted into each of the plate slots, and a power distribution line fixing part fixed to the free end of the support arm. Each of the plate slots is rotatably connected to the base plate through a hinge pin and is composed of a rectangular prism having a square hole. The support arm is formed as a square tube that is fitted loosely into the square hole of the plate slot and rotates together with the plate slot around the hinge pin. The support arm and the plate slot are fastened and fixed to the base plate through an angle adjustment bolt that penetrates them. The power distribution line fixing part is characterized by having a fixing part slot of a rectangular prism having a square hole that is fitted loosely into the free end of the support arm and bolted.

[0019] The base plate has an arc-shaped guide hole drilled at each point corresponding to each plate slot, centered on the hinge pin, and the support arm and each plate slot may have a hole drilled through which the angle adjustment bolt passes by, so that they coincide with one point of the guide hole.

[0020] A cross member for installing an angle post of a power distribution line according to another embodiment of the present invention comprises a base plate fixed to the angle post, three plate slots spaced apart on the base plate at a predetermined angle centered on the angle post, an articulated support arm of the same shape composed of a plurality of links, and a power distribution line fixing part fixed to the free end of the support arm. Each of the plate slots is composed of a rectangular prism having a square hole, and the articulated support arm is formed as a square tube. The opposing surfaces corresponding to the links are formed such that disc-shaped connecting parts overlap each other, and the link angle is fixed so as to be adjusted through rotation of each connecting part based on a connecting fixing bolt fastened to the center of the connecting part. The power distribution line fixing part is characterized by having a fixing slot of a rectangular prism having a square hole that is fitted tightly to the free end of the support arm and bolted.

[0021] Each connecting part of the above-mentioned articulated support arm has an alternating square projection and a square groove formed on opposite surfaces, and the square projection and the square groove engage during the process of fastening the connecting fixing bolt so that the link angle can be maintained. Effects of the invention

[0022] As described above, the crossarm for installing angle posts of a power distribution line according to one embodiment of the present invention has the advantage of, first, maximizing the precision of the final wire direction setting through the individual fine angle adjustment function of each plate slot, and additionally performing precise angle adjustment by finely rotating each selected slot itself around the hinge pin in addition to the approximate angle setting by selecting one of the multiple slots of the base plate.

[0023] Second, it can flexibly respond to a wide range of angle changes while maintaining a relatively simple and robust structure. Multiple plate slots are arranged at equal angles on the base plate, allowing for a variety of initial connection angles for the support arms. Furthermore, it offers the advantage of enabling a wide range of final wire directions through the fine adjustment function of each slot and the combination of the support arm length and the position of the fixed slot.

[0024] Third, the efficiency and accuracy of the installation process can be improved. The desired wiring angle can be set through intuitive steps of selecting a slot on the base plate and fine-tuning the angle of that slot, without the need for complex multi-stage installation methods or precise motor control.

[0025] Fourth, the set angle can be stably maintained. Since all connection parts and angle adjustment parts are firmly fixed through square slots and bolt fastening, the set angle can be stably maintained without deformation or twisting even under the tension of the power distribution line or external impact after installation.

[0026] The effect of the embodiment of the present invention as described above is based on a unique mechanism of individual angle adjustment function for each plate slot and a flexible and precise angle setting method utilizing it, which can provide new technical effects that existing power distribution line direction variable devices cannot provide. Brief explanation of the drawing

[0027] FIG. 1 is an exploded perspective view of a crossarm for installing an angle pole of a power distribution line according to one embodiment of the present invention, and FIG. 2 is an assembled perspective view of a crossarm for installing an angle pole of a power distribution line according to one embodiment of the present invention, and FIG. 3 is a partially enlarged perspective view of a crossarm for installing an angle pole of a power distribution line according to one embodiment of the present invention, and FIG. 4 is a plan view of a crossarm for installing an angle pole of a power distribution line according to one embodiment of the present invention, and FIG. 5 is a perspective view of a crossarm for installing an angle pole of a power distribution line according to another embodiment of the present invention, and FIG. 6 is a partial perspective view of a crossarm for installing an angle pole of a power distribution line according to another embodiment of the present invention, and FIG. 7 is a plan view of a crossarm for installing an angle pole of a power distribution line according to another embodiment of the present invention. Specific details for implementing the invention

[0028] Hereinafter, a cross member for installing an angle pole of a power distribution line according to a preferred embodiment of the present invention will be described in detail with reference to the drawings.

[0029] The present invention is not limited to the illustrated embodiments and can be implemented in various forms.

[0030] In FIGS. 1 to 4, a bracket for installing an angle pole of a power distribution line according to one embodiment of the present invention is a device installed on a pole, particularly an angle pole (400) that supports a power distribution line, to adjust and fix the connection direction and position of the power distribution line, and is composed of a base plate (100), a plurality of plate slots (110), a support arm (200), a power distribution line fixing part (300), and bolt fastening means for connecting and fixing them.

[0031] The base plate (100) above may be composed of an "L" shaped angle and is a support structure that is firmly fixed to the outer surface of the angle column (400) through a pole fixing bolt (411) together with a pole fixing structure (410) composed of a square tube. Each of the above plate slots (110) is provided on the base plate (100) at an equal angle (A°) from the center of the angle column (400). Each plate slot (110) is a part into which one end of the support arm (200), which will be described later, is inserted and connected.

[0032] Each of the above plate slots (110) is composed of a rectangular prism with a square hole into which a square tube is inserted, and has a structure that allows for angle adjustment in place. Specifically, each plate slot (110) is rotatably connected to a pin hole (101) drilled in the base plate (100) through a hinge pin (111), and includes a structure in which an angle adjustment bolt (112) passes through a guide hole (1102) drilled in the base plate (100) in an arc shape around the hinge pin (111) and is fastened to the bottom surface of the base plate (100) with a nut.

[0033] By loosely adjusting the angle adjustment bolt (112) and moving it within the guide hole (102), each plate slot (110) can be independently angle-adjusted within a specific range (B°) centered on the hinge pin (111). Once the desired angle is set, a nut is tightened firmly at the end of the angle adjustment bolt (112) protruding from the bottom surface of the base plate (100) to fix the angle of the corresponding plate slot (110).

[0034] The above support arm (200) is configured in the shape of a square tube, and one end is fitted loosely into one of the square holes among the plurality of angle-adjustable plate slots (110) provided in the base plate (100), and through holes (201) into which angle adjustment bolts (112) are inserted are drilled on the upper and lower sides so that they are fixed together when the angle adjustment bolts (112) are fastened to the base plate (100).

[0035] The above-mentioned power line fixing part (300) is configured in the shape of a square tube and is the part to which the power line (500) is connected. A rectangular fixing slot (310) having a square hole into which the square tube is inserted is formed in the above-mentioned power line fixing part (300), and the other end (free end) of the above-mentioned support arm (200) is inserted into the square hole formed in the above-mentioned fixing slot (310) and fixed by fastening a power line fixing bolt (311), and serves to determine the point where the power line is to be supported.

[0036] The bracket for installing angle posts of a power distribution line according to one embodiment of the present invention configured as described above operates by manually adjusting the angle to match the required direction and position of the power distribution line and securely fixing it, and the process is as follows.

[0037] First, the base plate (100) of the present invention is firmly fixed to the outer surface of the angle post (400) at a height desired by the installer using a pole fixing structure (410). Once the base plate (100) is stably attached to the angle post, the preparation to connect the support arm (200) to the base plate (100) is now complete.

[0038] In the next step, one end of the support arm (200) is connected to the base plate (100). During this process, the installer selects one of the plate slots (110) that is most suitable for the approximate direction or location of the required power distribution line from among the plurality of plate slots (110) arranged at equal angles (A°) on the base plate (100). The selected plate slot (110) is connected to the base plate (100) by a hinge pin (111), and the plate slot (110) can be rotated finely within a specific range (B°) around the hinge pin (111) by adjusting the angle adjustment bolt (112). To do this, the angle adjustment bolt (112) is removed from the plate slot (110), one end of the support arm (200) is inserted into the corresponding plate slot (110), and then the angle adjustment bolt (112) is inserted through the through hole (201) and the guide hole (102). Afterward, the installer adjusts the angle of the corresponding plate slot (110) by considering the direction of the power distribution line, and fixes the angle by firmly tightening the angle adjustment bolt (112) with a nut, so that one end of the support arm (200) can be fixed together with the fixed plate slot (110).

[0039] Next, the other end (free end) of the support arm (200) is connected to the power line fixing part (300). The end of the support arm (200) is inserted into a fixing slot (310) provided in the power line fixing part (300), and this connection part is firmly fixed by fastening a power line fixing bolt (311). The connection through this fixing slot (310) provides a stable connection between the end of the support arm (200) and the power line fixing part (300), and serves to determine the final power line support point at a distance determined by the length of the support arm (200).

[0040] Finally, the installer securely connects the power distribution line (500) using the connection structure provided in the power distribution line fixing part (300). When all connection parts and angle adjustment parts of the device are firmly fixed, the device according to the present invention stably supports the load of the power distribution line without fluctuation in the set direction and position.

[0041] The crossarm for installing angle poles of a power distribution line according to one embodiment of the present invention solves the problems of existing power distribution line direction variable devices according to the above-described configuration and operation, and provides the following significant effects.

[0042] First, the precision of the final wire direction setting can be maximized through the individual fine angle adjustment function of each plate slot (110). In addition to the approximate angle setting (A°) of selecting one of the multiple slots (110) of the base plate (100), the selected slot (110) itself can be finely rotated (B°) around the hinge pin (111) to perform additional precise angle adjustment. This multi-layered angle adjustment action makes it possible to achieve a very precise wiring angle required at the installation site, which is a unique effect of the present invention that is difficult to achieve with existing technology.

[0043] Second, the structure is relatively simple and robust while flexibly responding to a wide range of angle changes. Multiple plate slots (110) are arranged at equal angles on the base plate (100), allowing for various initial connection angles of the support arm (200), and a wide range of final wire directions can be realized through the combination of the fine adjustment function of each slot (110), the length of the support arm (200), and the position of the fixed slot (310).

[0044] Third, the efficiency and accuracy of the installation work are improved. Even without complex multi-stage installation methods or precise motor control, the desired wiring angle can be set through intuitive steps of selecting a slot on the base plate and fine-tuning the angle of that slot.

[0045] In FIGS. 5 to 7, a bracket for installing an angle pole of a power distribution line according to another embodiment of the present invention is a device installed on a pole that supports a power distribution line, particularly an angle pole, to adjust and fix the connection direction and position of the power distribution line, and is composed of a base plate (100a), a pair of articulated support arms (200a), a power distribution line fixing part (300), and bolt fastening means for connecting and fixing them.

[0046] The base plate (100a) may be composed of an "L" shaped angle and is a support structure that is firmly fixed to the outer surface of the angle post (400) through a pole fixing bolt (411) together with a pole fixing structure (410) composed of a square tube. The base plate (100a) includes three plate slots (110a) arranged at equal angles with a predetermined angle (A°) centered on the angle post (400), and each plate slot (110a) may be formed as a rectangular prism having a square hole suitable for receiving and fixing one end of an articulated support arm (200a) composed of a square tube. This arrangement of plate slots (110a) having a specific number (3) and angle serves as a reference point for setting the initial connection position of the articulated support arm (200a).

[0047] The above-mentioned articulated support arm (200a) is composed of a square tube, and two identically shaped ones are used as a pair. The connecting part (210a) corresponding to the joint is composed of a disc shape, and the circular joint surface where the corresponding surfaces meet has a structure in which a square projection (211a) and a square groove (212a) are alternately formed radially and engaged. Through the mechanical engagement (gathering) of the square projection (211a) and the square groove (212a), a pair of support arms (200a) can be fixed at a specific angle (B°), thereby allowing each joint angle of the articulated support arm (200) to be set and maintained as a discrete yet repeatable angle. Additionally, a connecting fixing bolt (220a) passes through a hole drilled in the center of the opposing connecting part (210a) and is fastened together with a nut.

[0048] One of the free ends of the above-mentioned articulated support arm (200a) is fitted loosely into a square hole selected from the three plate slots (110a) provided in the base plate (100a) and is firmly fixed to the base plate (100a) by fastening a slot bolt (111a).

[0049] The above-mentioned power line fixing part (300) is a part to which the power line (500) is directly connected, and a rectangular fixing part slot (310) having a square hole is provided, and the other free end of the articulated support arm (200a) is connected and fixed to the power line fixing part (300) by fastening a power line fixing bolt (311) by inserting a square tube loosely into the square hole formed in the fixing part slot (310).

[0050] A cross arm for installing an angle pole of a power distribution line according to another embodiment of the present invention operates by manually adjusting the angle and securely fixing it at the installation site to match the required direction and position of the power distribution line, and the process is as follows.

[0051] First, the base plate (100a) is firmly fixed to the outer surface of the angle post (400) at a height desired by the installer using a pole fixing structure (410). Once the base plate (100a) is stably attached to the angle post, the next step is to connect an articulated support arm (200a) to the base plate (100a). During this process, the installer selects one of the three plate slots (110a) provided in the base plate (100a) that is most suitable for the approximate direction or location of the required power distribution line. Then, the free end of one end of the articulated support arm (200a) is inserted into the selected plate slot (110a) to perform an initial connection, and this connection point is primarily fixed by fastening a slot bolt (111a).

[0052] Next, the installer adjusts the shape of the entire arm by moving the connecting part (210a) between the links constituting the articulated support arm (200a), thereby aligning the final position and angle at which the power distribution line is supported. In the present invention, the connecting part (210a) sets a desired angle (C° or D°) by finding a point where the angular protrusion (211a) and the angular groove (212a) formed on the opposite surface interlock. When the connecting fixing bolt (220a) is loosened and the angular protrusion (211) and the angular groove (212) are separated, the connecting part (210a) corresponding to the joint rotates, and once the desired angle is set, the interlocking state of each connecting part (210a) is fixed by tightening the connecting fixing bolt (220a) so that the protrusion (211a) and the groove (212a) interlock.

[0053] Next, the other free end of the articulated support arm (200a) is inserted into the fixed slot (310) provided in the power line fixing part (300), and is firmly fixed by fastening the power line fixing bolt (311). This fixed slot (310) provides a stable connection with the end of the articulated support arm (200a) and serves to determine the point where the power line (500) will be supported. With this, the installation and angle / position setting of the power line direction variable device are completed, and thereafter, it supports the load of the power line (500) while maintaining the set state without change.

[0054] A crossarm for installing angle poles of a power distribution line according to another embodiment of the present invention can provide the following significant effects.

[0055] First, it provides a precise and repeatable angle setting function. By physically constraining the rotation angle of the joint through a mechanical meshing structure of a square projection (211a) and a square groove (212a) on the connecting part (210a) corresponding to the joint of the articulated support arm (200a), the settable angle (C°, D°) is limited to predetermined discrete values, and each joint can be fixed clearly and precisely at the corresponding angle. This increases the ease of accurately aligning the desired angle during installation and ensures high repeatability and reliability, maintaining the same angle without the angle shifting even under vibration or external load after installation.

[0056] Second, it has the ability to respond flexibly to a wide range of angles and positions. By selecting one of the three plate slots (110a) provided on the base plate (100a) as an initial setting, and combining the joint angles (C°, D°) of the articulated support arm (200a) composed of multiple links through the engagement of the square projection (211a) and the groove (212a), the range of final positions and angles that the power line fixing part (300) can reach can be greatly expanded.

[0057] As in the case of the installation, the cross arm for installing angle joints of a power distribution line according to the embodiment of the present invention can precisely and flexibly set the connection direction and position of the power distribution line at the installation site and securely fix it. Explanation of the symbols

[0058] 100,100a : Base plate 110,110a : Plate slot 200.200a : Support 8 300,300a : Distribution line fixing part 310,310a : Fixed slot 400 : Angle column 500 : Distribution line

Claims

Claim 1 A base plate fixed to an angle column; a plurality of plate slots spaced apart on the base plate at a predetermined angle centered on the angle column; and a support arm having one end and the other end, which are mutually opposite ends, and selectively fitted into each of the plate slots; A cross member for installing an angle post of a power distribution line, comprising a power distribution line fixing part fixed to the free end of the other end of the support arm, wherein the base plate has an arc-shaped guide hole drilled at each point corresponding to each plate slot, centered on a corresponding hinge pin, each plate slot is rotatably connected to the base plate through the hinge pin and is formed as a rectangular prism having a square hole on the inside, the support arm is formed as a square tube that is fitted loosely into the square hole of the plate slot and rotates together with the plate slot around the hinge pin, and the one end of the support arm and each plate slot coincide with a point of the guide hole and are fastened to the base plate through an angle adjustment bolt that passes through them simultaneously, and the power distribution line fixing part is provided with a fixing part slot of a rectangular prism having a square hole on the inside so that the free end of the other end of the support arm is fitted and bolted. Claim 2 delete Claim 3 delete Claim 4 delete

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