Mechanical device for installing fault indicator in power system

Abstract

The invention relates to the technical field of electric power system fault indicator installation, in particular to a mechanical device for installing a fault indicator in an electric power system, which is characterized in that an insulating rod is matched with a shelving piece, and a vertical positioning wall limits that the installation angles of a spring clamp, an electric power circuit (cable) and electric power equipment are not staggered under the action of external force on the fault indicator; the installation position is accurate, and the installation efficiency is high. The radial supporting rod provides supporting force for opening the spring clamp, so that the spring clamp is in an opening state all the time before retraction. And then the fault indicator is jacked by the jacking mechanism, the spring clamp upwards slides out and rebounds along the radial supporting rod, and the fault indicator is hung on an electric power circuit (cable) and electric power equipment. After the pressing mechanism is manually operated and the fault indicator is jacked for a pressing stroke, the jacking mechanism jacks the spring clamp to be separated from the radial supporting rod, the fault indicator is hung on an electric power circuit (cable) and electric power equipment, the pressing spring rebounds to drive the insulating rod core to return to the initial position, and operation is convenient, labor-saving and rapid.

Description

Technical Field

[0001] This invention relates to the field of power system fault indicator installation technology, specifically to a mechanical device for installing fault indicators in power systems. Background Technology

[0002] A power system fault indicator is an instrument used to detect and indicate various faults in a power system. These instruments are typically installed on power lines (cables) and power equipment, and can indicate whether a fault (such as a short circuit, open circuit, or grounding) has occurred on the power lines (cables) or equipment through sound, visual signals, or remote communication.

[0003] Fault indicators are typically installed during construction (i.e., when not energized). However, once the lines (cables) and equipment are put into operation (i.e., when energized), installing or replacing fault indicators presents several challenges. One approach is maintenance or installation during a power outage. Given the current State Grid system's requirements for power reliability, this involves a long waiting period, hindering the real-time effectiveness of the fault indicators. Another approach is live-line work (using an insulated bucket truck). However, this is impossible in areas inaccessible to insulated bucket trucks, such as rugged mountain roads, farmland, or water conservancy facilities. Furthermore, this method is highly dependent on weather and environmental conditions and cannot be installed at the required location immediately. This device addresses both of these challenges. Regardless of whether the power lines (cables) and equipment are energized, it uses insulated rods that meet the safety distance requirements for the corresponding voltage level. With installation personnel wearing personal protective equipment and maintaining a sufficient safety distance from energized lines (cables) and equipment, installation can be completed by one person operating and another supervising. This ensures power supply reliability while saving significant manpower, resources, and materials. Summary of the Invention

[0004] The purpose of this invention is to provide a mechanical device for installing fault indicators in power systems to solve the problems mentioned in the background art. This invention has the advantages of being suitable for installation in various complex geographical locations, being fast and efficient, and being simple and safe to operate.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a mechanical device for installing a fault indicator in a power system, wherein the top of the fault indicator is provided with a pair of spring clips for hanging on power lines (cables) and power equipment, and includes an insulating rod that meets the safety distance requirements of the corresponding voltage level. The top of the insulating rod is provided with a support for placing the fault indicator. The support is an upwardly open cup-shaped body, and the support includes a receiving cavity that matches the shape and size of the fault indicator. The upper edge of the opening of the receiving cavity is provided with two oppositely arranged concave grooves, which avoid the clamping groove between the two spring clips on the fault indicator, so as not to interfere with the power lines (cables) and power equipment passing through the clamping groove.

[0006] The support between the two concave grooves has opposing vertical positioning walls. The springs of the two spring clips of the fault indicator cooperate with the corresponding vertical positioning walls to limit the circumferential displacement of the fault indicator. With two opposing vertical positioning walls on the support cooperating with the fault indicator, the fault indicator will not rotate under external force. The spring clips will not misalign with the installation angle of the power lines (cables) and electrical equipment, ensuring precise installation and high installation efficiency.

[0007] Radial support rods are provided on the top surface of the vertical positioning wall. The two spring clips of the fault indicator open to both sides and hook onto the radial support rods. The radial support rods provide support for the opening of the spring clips, so that the spring clips remain open until they retract.

[0008] The support component has a through hole at its bottom; the insulating rod is a hollow rod body, and a lifting mechanism is provided inside the hollow rod body to lift the fault indicator installed inside the support component through the through hole. The lifting mechanism is coaxially arranged with the support component. The lifting mechanism lifts the fault indicator, and the spring clip slides upward along the radial support rod and rebounds, so that the fault indicator is hung on the power line (cable) or power equipment.

[0009] As a further embodiment of the present invention, the lifting mechanism includes an insulating rod core that penetrates the hollow rod body. The top end of the insulating rod core can extend along the through hole into the inner cavity of the support component. In the free state, the top surface of the insulating rod core is flush with the bottom inner wall of the support component. The lower end of the insulating rod core extends out of the insulating rod, and a pressing mechanism is provided at the lower end of the insulating rod core. The lifting mechanism's stroke is completed by manual pressing, which is convenient, labor-saving, and quick to operate.

[0010] As a further embodiment of the present invention, the pressing mechanism includes a pressing block, and a pressing spring is sleeved on the insulating rod core between the pressing block and the insulating rod. When the pressing spring is compressed to its limit, the axial displacement of the insulating rod core relative to the insulating rod forms a pressing stroke. The distance from the position of the spring clip of the fault indicator on the insulating rod core to the top of the insulating rod core is one pressing stroke. After the fault indicator is raised by one pressing stroke, the two spring clips of the fault indicator slide upward along the radial support rod, and the pressing spring force drives the pressing block to return to its initial position. The pressing structure completes the vertical displacement synchronously through the same pressing stroke. The spring clips disengage from the radial support rod, the fault indicator is hung on the power line (cable) or power equipment, and the pressing spring rebounds, driving the insulating rod core back to its initial position.

[0011] As a further embodiment of the present invention, the lower end of the insulating rod is fitted with a non-slip handle glove, and the lower part of the non-slip handle glove is fitted with a limiting protective cover. The bottom end of the limiting protective cover is open, and the pressing block of the insulating rod core is located inside the limiting protective cover and near the bottom opening. The limiting protective cover encloses the pressing block and the pressing spring, and can be placed arbitrarily during operation without touching the pressing mechanism.

[0012] As a further embodiment of the present invention, the outer wall of the insulating rod is made of insulating material. The insulating rod comprises several hollow rod sections, each adjacent hollow rod section being threaded together. The length of each hollow rod section is 0.5m-1.5m, and the length of the hollow rod section can be adjusted according to different voltage levels. The number of hollow rod sections used can be selected as needed, and the length of the insulating rod is adjustable, facilitating use under various terrain and installation conditions.

[0013] As a further embodiment of the present invention, a plurality of limiting rings are evenly distributed along the axial direction within the hollow rod body. The inner wall of the limiting rings slides against the outer wall of the insulating rod core, while the outer wall of the limiting rings is interference-fitted with the inner wall of the insulating rod. The limiting rings circumferentially restrict the swaying of the insulating rod core, ensuring its vertical stability.

[0014] As a further embodiment of the present invention, a hollow screw is provided at the bottom wall of the mounting component. The hollow screw has external threads and is connected to the internal threads at the top of the insulating rod. The insulating rod core moves up and down along the inner hole of the hollow screw. Different sizes of mounting components and insulating rods can be selected to match the actual fault indicator model, which facilitates disassembly and assembly and is convenient and practical.

[0015] Depending on the model of the fault indicator to be used, different sizes of mounting parts can be selected to match the insulating rod. The hollow screws of mounting parts of different sizes can be threaded into the insulating rod.

[0016] Place the fault indicator in the receiving cavity of the holder, with the concave groove of the power line (cable) avoiding the installation space of the clamping groove of the fault indicator. Predict the orientation of grabbing the fault indicator when placing it.

[0017] Using the external tool, simultaneously open the two spring clips of the fault indicator to both sides. Hook each of the two open spring clips onto the radial support rod, keeping them open. Pass the power line (cable) and power equipment through the clamping slots created by the open spring clips. The power line (cable) and power equipment should be positioned along the length of the clamping slots, ensuring that the bottom of the power line (cable) and power equipment does not roll against the curved surface close to the clamping slots.

[0018] The lifting mechanism extends through the hollow rod body, with the top of the insulating rod core reaching into the inner cavity of the support. In its free state, the top surface of the insulating rod core is flush with the bottom inner wall of the support. When the pressing spring is compressed to its limit, the axial displacement of the insulating rod core relative to the insulating rod forms a pressing stroke. The distance from the position of the fault indicator's spring clip on the insulating rod core to the top of the insulating rod core is one pressing stroke. After the fault indicator is lifted by one pressing stroke, the two spring clips of the fault indicator slide upward along the radial support rod, and the spring clips of the fault indicator return to the free state, suspending on the power line (cable) or power equipment.

[0019] Pressing the spring forces the pressing block back to its initial position, remove the mechanical device, and the installation is complete.

[0020] Compared with existing technologies, the advantages of this invention are: This device, through the cooperation of an insulating rod and a mounting component, and the vertical positioning wall, prevents the fault indicator from rotating under external force. The spring clips and the installation angles of the power lines (cables) and electrical equipment will not be misaligned, resulting in precise installation and high installation efficiency. The two spring clips of the fault indicator simultaneously open to both sides and hook onto the radial support rod. The radial support rod provides support for the opening of the spring clips, keeping them open until they retract. Then, the lifting mechanism lifts the fault indicator, and the spring clips slide upwards along the radial support rod and spring back, thus hanging the fault indicator on the power lines (cables) and electrical equipment.

[0021] By manually pressing the pressing mechanism at the lower end of the insulating rod core, the fault indicator rises one pressing stroke. Afterward, the two spring clips of the fault indicator slide upward along the radial support rod. The pressing spring force drives the pressing block back to its initial position, completing the lifting mechanism's stroke. The pressing structure completes vertical displacement synchronously through the same pressing stroke. The spring clips disengage from the radial support rod, and the fault indicator is hung on the power line (cable) or power equipment. The pressing spring rebounds, driving the insulating rod core back to its initial position. This operation is convenient, labor-saving, and quick.

[0022] The lower part of the non-slip handle is equipped with a limit protection cover, which encloses the pressing block and pressing spring. It can be placed freely during operation without touching the pressing mechanism.

[0023] The insulating rod can be made of multiple hollow rods joined together, with adjustable length, to meet different voltage levels, making it suitable for various terrains and installation conditions. A limiting ring installed inside the hollow rod limits the swaying of the insulating rod core in the circumferential direction, ensuring its vertical stability.

[0024] The mounting bracket and the insulating rod are detachably connected, allowing for the selection of different sizes of mounting brackets and insulating rods according to the fault indicator model. This facilitates disassembly and assembly, making it convenient and practical. Attached Figure Description

[0025] Figure 1 This is a partial assembly diagram of the present invention;

[0026] Figure 2 A cross-sectional view of the entire invention Figure 1 ;

[0027] Figure 3 A cross-sectional view of the entire invention Figure 2 ;

[0028] Figure 4 This is a schematic diagram of the overall assembly of the present invention. Figure 1 ;

[0029] Figure 5 This is a schematic diagram of the overall assembly of the present invention. Figure 2 ;

[0030] Figure 6 The fault indicator and its mounting component are assembled in the following state: Figure 1 ;

[0031] Figure 7 The fault indicator and its mounting component are assembled in the following state: Figure 2 ;

[0032] Figure 8 The fault indicator of the present invention is assembled with power lines (cables) and power equipment. Figure 1 ;

[0033] Figure 9 This is a partially enlarged view of the pressing mechanism of the present invention;

[0034] Figure 10 This is a schematic diagram of the assembly of the limiting ring and the insulating rod core of the present invention.

[0035] In the diagram: 1-Insulating rod, 101-Limiting ring, 102-Insulating rod core, 103-Anti-slip handle glove, 104-Limiting protective cover, 105-Pressing mechanism, 151-Pressing block, 152-Pressing spring, 2-Hollow screw, 3-Support piece, 301-Accommodating cavity, 302-Vertical positioning wall, 303-Radial support rod, 304-Concave groove, 305-Through hole, 4-Fault indicator, 401-Spring clip, 402-Clamping groove, 5-Power line (cable), power equipment. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Example 1

[0038] Please see the appendix Figure 1 -Appendix Figure 8This is a mechanical device for installing fault indicators in power systems. The fault indicator 4 has a pair of spring clips 401 on its top for hanging on power lines (cables) and power equipment 5. It includes an insulating rod 1 with a safety distance meeting the corresponding voltage level. The top of the insulating rod has a support 3 for holding the fault indicator. The bottom wall of the support has a hollow screw 2 with external threads. The hollow screw mates with the internal threads at the top of the insulating rod. The insulating rod core 102 moves up and down along the inner hole of the hollow screw. Different sizes of support components can be selected to mate with the insulating rod depending on the model of the fault indicator being used. The hollow screws of different sized support components can all mate with the threads of the insulating rod.

[0039] The holder 3 is an upward-opening cup-shaped body. The holder includes a receiving cavity 301 that matches the shape and size of the fault indicator. Two opposing concave grooves 304 are provided along the upper edge of the opening of the receiving cavity. When the fault indicator is manually placed into the holder, the concave grooves avoid the mounting space of the fault indicator's clamping groove 402, allowing for prediction of the orientation of the fault indicator during placement. The hand grips the fault indicator body wall between the two spring clips.

[0040] The support between the two concave grooves is provided with opposing vertical positioning walls 302. The springs of the two spring clips of the fault indicator cooperate with the vertical positioning walls on the corresponding sides to limit the circumferential displacement of the fault indicator. The springs of the spring clips are parallel and close to the length direction of the vertical positioning walls along the length direction.

[0041] Radial support rods 303 are provided on the top surface of the vertical positioning wall. The two spring clips of the fault indicator open to both sides and hook onto the radial support rods. With the help of the external wall tool, the two spring clips of the fault indicator are opened to both sides simultaneously and hooked onto the radial support rods. Keeping the two spring clips in the open state, the power line (cable) and power equipment 5 are passed through the clamping grooves 402 formed by the open spring clips. The power line (cable) and power equipment are arranged along the length of the clamping groove, and the bottom of the power line (cable) and power equipment does not roll against the arc-shaped surface close to the clamping groove.

[0042] The bottom of the support component has a through hole 305. The insulating rod is a hollow rod body, and a lifting mechanism is provided inside the hollow rod body to lift the fault indicator installed inside the support component through the through hole. The lifting mechanism is coaxially arranged with the support component. The lifting mechanism includes an insulating rod core 102 that penetrates the hollow rod body. The top end of the insulating rod core can extend along the through hole into the inner cavity of the support component. In the free state, the top surface of the insulating rod core is flush with the bottom inner wall of the support component. The lower end of the insulating rod core extends out of the insulating rod, and a pressing mechanism is provided at the lower end of the insulating rod core.

[0043] Please see the appendix Figure 9The pressing mechanism 105 includes a pressing block 151. A pressing spring 152 is sleeved on the insulating rod core between the pressing block and the insulating rod. When the pressing spring is compressed to its limit, the axial displacement of the insulating rod core relative to the insulating rod forms a pressing stroke. The distance from the position of the spring clip of the fault indicator on the insulating rod core to the top of the insulating rod core 102 is one pressing stroke. After the fault indicator is raised by one pressing stroke, the two spring clips of the fault indicator slide upward along the radial support rod 303, and the pressing spring force drives the pressing block to return to the initial position.

[0044] Example 2

[0045] Please see the appendix Figure 2 -Appendix Figure 3 The pressing block is exposed outside the anti-slip handle 103 at the lower end of the insulating rod. When the insulating rod is placed on the ground at any angle or vertically, the pressing block contacts the ground. Touching the pressing block causes the core of the insulating rod to move upward, driving the lifting mechanism to push the fault indicator upward, which causes the fault indicator to be pushed out when it is placed.

[0046] The lower end of the insulating rod is fitted with an anti-slip handle glove, and the lower part of the anti-slip handle glove is fitted with a limiting protective cover 104. The bottom end of the limiting protective cover is open, and the pressing block of the insulating rod core is located inside the limiting protective cover and close to the bottom opening.

[0047] The limit protection cover keeps the internal insulating rod core and pressing block in their original positions, unaffected by the placement environment. When hooking is needed, the pressing block can be manually pushed upwards to drive the lifting mechanism.

[0048] Example 3

[0049] Please see the appendix Figure 3 The installation height of power lines (cables) and power equipment varies, and the terrain where the operation takes place also varies. A safe distance must always be maintained during operation. The length of the insulating rod 1 needs to be adjustable at any time and should not be too long or too short.

[0050] The outer walls of the insulating rods are all made of insulating material, while the rod body is made of rigid material, which can generate effective support force and does not undergo stress deformation.

[0051] The insulating rod consists of several hollow rod sections, each connected by a threaded connection. Each hollow rod section is 1.5m long, with the length adjusted according to different voltage levels. Typically, at least two hollow rod sections are joined together to achieve a safe operating distance of 3 meters. The number of hollow support rods is increased based on the actual height of the power lines (cables) and electrical equipment until the required installation height is reached.

[0052] Example 4

[0053] Please see the appendix Figure 10The insulating rod core 102 is a single rod body located inside a hollow rod. According to the principle of force on slender objects, the insulating rod core will bend and deform.

[0054] The hollow rod body has a plurality of limiting rings 101 evenly distributed along the axial direction, and each hollow rod body has 2 limiting rings evenly distributed along the axial direction.

[0055] The inner wall of the limiting ring slides with the outer wall of the insulating rod core, while the outer wall of the limiting ring is interference-fitted with the inner wall of the insulating rod.

[0056] The limiting ring restricts the circumferential displacement of the insulating rod core and provides support at a fixed distance. The insulating rod core remains coaxial with the hollow rod body, resulting in low friction during pressing and smooth coordination between the pressing mechanism and the lifting mechanism.

[0057] After the fault indicator is lifted, before the pressing mechanism is activated, the two spring clips remain open, allowing the power line (cable) and power equipment to pass through the clamping slots 402 opened by the two spring clips. The power line (cable) and power equipment are positioned along the length of the clamping slots, and the bottom of the power line (cable) and power equipment does not roll against the arc-shaped surface close to the clamping slots.

[0058] After the pressing mechanism is activated, and then the lifting mechanism is activated, the two open spring clips 401 slide upwards along the radial support rod 303 respectively. The spring clips spring back towards the center and lock onto the upper surface of the power line (cable) and power equipment 5, suspending the fault indicator on the power line (cable) and power equipment. This separates the receiving cavity 301 of the holder from the fault indicator body, completing the installation of the fault indicator. At the same time, the pressing spring force drives the pressing block back to its initial position, ready for reuse.

[0059] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0060] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mechanical device for mounting fault indicator on electric power system, the top of the fault indicator (4) is provided with a pair of spring clips (401) for hanging on electric power line (cable), electric power equipment (5), characterized in that: The insulating rod (1) includes an insulating rod (1) meeting the safety distance of the corresponding voltage level, and the top end of the insulating rod is provided with a rest part (3) for placing a fault indicator, the rest part is a cup-shaped body with an upward opening, the rest part includes a containing cavity (301) matching the shape and size of the fault indicator, the upward opening of the containing cavity is provided with two oppositely arranged concave grooves (304), the rest part between the two concave grooves is provided with opposite vertical positioning walls (302), the springs of the two spring clamps of the fault indicator are matched with the corresponding vertical positioning walls to limit the circumferential displacement of the fault indicator, the top surface of each vertical positioning wall is provided with a radial support rod (303), the two spring clamps of the fault indicator are simultaneously opened to the two sides and hooked on the radial support rod, and the bottom of the rest part is provided with a through hole (305). The insulating rod is a hollow rod body, and the hollow rod body is provided with a jacking mechanism for jacking the fault indicator installed in the rest part through the through hole.

2. The mechanical device for power system installation fault indicator according to claim 1, characterized in that: The jacking mechanism includes an insulating rod core (102) penetrating through the hollow rod body, the top end of the insulating rod core can extend into the inner cavity of the rest part along the through hole, in a free state, the top end surface of the insulating rod core is flush with the bottom inner wall of the rest part, the lower end of the insulating rod core extends out of the insulating rod, and the lower end of the insulating rod core is provided with a pressing mechanism.

3. The mechanical device for power system installation fault indicator according to claim 2, characterized in that: The pressing mechanism (105) includes a pressing block (151), a pressing spring (152) is sleeved on the insulating rod core between the pressing block and the insulating rod, the pressing spring is compressed to the limit, the axial displacement of the insulating rod core relative to the insulating rod forms a pressing stroke, the distance from the position where the spring clamp of the fault indicator is clamped to the top end of the insulating rod core (102) is a pressing stroke, after the fault indicator is jacked by a pressing stroke, the two spring clamps of the fault indicator slide upward along the radial support rod, and the pressing spring force drives the pressing block to return to the initial position.

4. The mechanical device for power system installation fault indicator according to claim 3, characterized in that: The lower end of the insulating rod (1) is sleeved with an anti-skid handle sleeve (103), the lower part of the anti-skid handle sleeve is sleeved with a limiting protection cover (104), the cover body of the limiting protection cover is open at the bottom end, the pressing block of the insulating rod core is located inside the limiting protection cover and close to the bottom end opening.

5. The mechanical device for power system installation fault indicator according to claim 4, characterized in that: The outer wall of the insulating rod (1) is made of insulating material, the insulating rod includes a plurality of hollow rod bodies, each adjacent hollow rod body is connected through threaded connection, the length of each hollow rod body is 0.5m-1.5m, and the length of the hollow rod body is adjusted according to different voltage levels.

6. The mechanical device for power system installation fault indicator according to claim 4, characterized in that: The hollow rod body is uniformly provided with a plurality of limiting rings (101) in the axial direction, the inner wall of the limiting ring is in sliding fit with the outer wall of the insulating rod core, and the outer wall of the limiting ring is in interference fit with the inner wall of the insulating rod.

7. The mechanical device for power system installation fault indicator according to claim 1, characterized in that: The bottom wall of the rest part is provided with a hollow screw rod (2), the hollow screw rod is provided with an external thread, the hollow screw rod is connected with the internal thread at the top end of the insulating rod in a matched mode, and the insulating rod core moves up and down along the inner hole of the hollow screw rod.

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