External multi-purpose double-layer hanging frame for bucket of insulated bucket arm vehicle and operation method
By designing multi-purpose double-layer hangers and partition placement tools on insulated boom trucks, the problems of inconvenient tool placement and interference in insulated boom trucks are solved, the operation efficiency and safety are improved, and the power outage operation is achieved efficient operation.
Patent Information
- Application Number
- CN202411736211.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-01-10
AI Technical Summary
In the operation of insulated boom trucks, the space inside the bucket is small, and the placement of the operating rods and tools is inconvenient, resulting in interference and safety hazards, affecting the operation efficiency and safety.
Design an insulated bucket arm truck external multi-purpose double-layer hanger, including an inner hanger frame and an outer hanger frame. Through the partition design of the inner and outer hanger boards, hook boards and hanging rods, the partition placement and sequential use of tools is realized to avoid Interfere with each other, and install an insulation resistance detector on the instrument bracket to optimize the operating process.
It improves the construction efficiency of the workers, shortens the working time, ensures the safety of non-powered operations, solves the problems of inconvenient and interference in tool placement, and saves 40 minutes of working time.
Smart Images
Figure CN119297831A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of electrical work tools, and in particular to an insulated bucket truck bucket external multi-purpose double-layer bracket and its operation method. Background Technology
[0002] The insulated boom lift method is currently the primary method used in live-line work. It features high mechanical strength, excellent electrical insulation, a wide operating range, strong mobility, and convenient aerial operation, making it the most common method. The insulated pole method requires workers to select a suitable location on the pole or ground and use the insulated pole to control tools at its top for tasks such as disconnecting cables and wires. During this process, it is crucial to maintain a sufficient safe distance from live conductors. Furthermore, workers must use insulated tools and wear insulated boots and gloves to create effective insulation between the ground and the live conductor. Insulated tools provide primary insulation, while insulated boots and gloves provide secondary insulation.
[0003] In recent years, a boom truck operating lever method has been developed for insulated boom truck operations. This method combines the boom truck operation method and the operating lever method, allowing for operation without contact with live parts, ensuring safety. Operating from inside the boom truck bucket also reduces the labor intensity of the operating lever method. However, during operation, there are numerous operating levers, tools, arc suppression switches, etc., and the limited space inside the bucket makes placing excessively long operating levers inside unsafe and hinders operation. Therefore, it is necessary to develop a mounting system and operating method that allows for the placement of different tools and operating levers without affecting uninterrupted power supply operation. Summary of the Invention
[0004] This invention addresses the shortcomings of existing technologies by providing an insulated bucket truck bucket external multi-purpose double-layer hanger and operating method that allows tools to be placed in sections and categories, and multiple tools to be used sequentially without interfering with each other, greatly improving the construction efficiency of workers.
[0005] To achieve the above objectives, the present invention first proposes a multi-purpose double-layer hanger for external mounting on an insulated bucket arm truck bed and an operating method thereof. The hanger includes an inner hanger frame, an outer hanger frame, and inner and outer hanging plates for mounting tools installed within the outer hanger frame. The tops of the outer hanger frame and the inner hanger frame are fixed, and a gap is provided between the outer hanger frame and the inner hanger frame, so that the outer hanger frame and the inner hanger frame form an inverted U-shaped hook for directly mounting the hanger onto the insulated bucket arm truck bed.
[0006] In this embodiment, the outer hanging plate and the inner hanging plate are spaced apart in the horizontal direction to form a first placement area, and the side of the outer hanging plate away from the inner hanging plate is a second placement area; a hook plate matching the inner hanging plate is fixed above the inner hanging plate, and a hanging rod matching the outer hanging plate is fixed above the outer hanging plate; the lower side of the tool hanging on the inner hanging plate is placed in the first placement area, and the top of the tool is hung on the hook plate; the lower side of the tool hanging on the outer hanging plate is placed in the second placement area, and the top of the tool is hung on the hanging rod. In this embodiment, the external bracket frame includes two side support plates that are parallel to each other and arranged opposite to each other. The hook plate, hanging rod, inner hanging plate and outer hanging plate are fixed between the two side support plates and arranged parallel to each other. The inner hanging plate is arranged above the outer hanging plate.
[0007] In this embodiment, the inner and outer hanging plates are arranged horizontally, and the hook plate is arranged vertically. The inner and outer hanging plates have multiple slots arranged along the length direction on the outer side, and the top side of the hook plate has multiple slots arranged along the length direction. The slots on the inner hanging plate match the slots on the hook plate.
[0008] In this embodiment, the outer frame and / or inner frame are provided with anti-slip and anti-collision pads on the side that contacts the insulated bucket arm.
[0009] In this embodiment, an instrument bracket is also installed on the inner mounting frame, and a horizontally arranged mounting rod is installed on the inner mounting frame. The top of the instrument bracket is provided with a hook that matches the mounting rod, and the instrument bracket is fastened to the mounting rod by the hook.
[0010] In this embodiment, a support rod is also hinged to the instrument bracket. The end of the support rod is provided with a hook. The inner bracket frame is provided with a plurality of limiting pin holes arranged in the vertical direction. A pin shaft matching the hook on the support rod is inserted into the limiting pin hole. After the instrument bracket is fastened to the mounting rod by the hook, the angle of the instrument bracket is fixed by fastening the hook of the support rod to the pin shaft.
[0011] An operating method using the above-mentioned double-layer bracket involves first mounting the double-layer bracket onto the insulated bucket arm, then mounting the insulated gun operating rod, electric insulated gun operating rod, insulated operating rod, insulated switch rod, arc suppression switch, insulated drain wire bracket, and insulated drain wire onto the double-layer bracket, and finally mounting the insulation resistance tester onto the instrument bracket. The following steps are then followed: S1. The operator performs voltage testing on the lower layer cables, cable supports, upper layer live lines, insulators and crossarms; S2. The operator shall inspect the cable fixing bracket and connecting leads, and use an insulation resistance tester to test the phase-to-phase and phase-to-ground insulation of the cable to confirm that the insulation resistance value is not less than 500 MΩ. After the test is completed, each phase of the cable shall be fully discharged. S3. The operator adjusts the insulated bucket arm to the appropriate position, and then installs the arc suppression switch and the insulated drain wire bracket at the selected position of the conductor in the order of middle, outside and inside. S4. The operator moves to the position below the lead wire splicing point and removes the oxide layer from the three-phase conductors at the predetermined splicing position in the order of inner, outer and middle. S5. The operator shall perform insulation shielding on the conductor in the order of inner, outer and middle shielding. S6. The operator adjusts the work position and removes the fixing clamps at both ends from the insulated lead wire bracket in the order of middle, outside and inside, and connects the insulated lead wire to the arc suppression switch conductive rod and the predetermined position of the same phase cable lead wire respectively. S7. The operator adjusts the work position and closes the arc suppression switch in the order of middle, outside, and inside, and checks the no-load current; S8. Workers should adjust their work positions and remove the insulation shielding measures for the three-phase conductors in the order of middle, outer and inner. S9. The operator adjusts the work position and pulls the arc suppression switch in the order of inner, outer, and middle. S10. The operator adjusts the work position and removes the clamps at both ends of the insulated lead wire in the order of inner, outer, and middle, and fixes them on the insulated lead wire support component. Then, the arc suppression switch and the insulated lead wire support are removed in the order of inner, outer, and middle.
[0012] With the above structure, the present invention has the following advantages: 1. This application utilizes an external multi-purpose double-layer rack in the bucket of an insulated bucket arm to place all insulated operating tools, such as insulated gun operating rods, insulated drain wire brackets, arc suppression switches, insulated shielding covers, and insulation resistance testers, on the double-layer rack. During operation, the operator can retrieve the tools step by step according to the operating sequence, which is convenient and saves 40 minutes of operation time in completing this project.
[0013] 2. This application features an inner and outer two-layer hanging rack. The outer and inner hanging plates are spaced horizontally to form a first placement area. The side of the outer hanging plate furthest from the inner hanging plate is the second placement area. Due to the larger space in the second placement area, the outer hanging plate can be used to place large tools such as drain wires and arc suppression switches. The inner hanging plate, being closer to the workers, can be used to place commonly used tools such as insulated gun operating rods and insulated operating rods. This allows tools to be placed in separate zones and categories, enabling the sequential use of various tools without interference. This significantly saves time in retrieving tools and greatly improves the work efficiency of the workers. It can be used for live-line work in power distribution networks, such as connecting unloaded cable leads, replacing suspension insulators, removing foreign objects, and disconnecting (with wire clamps) leads.
[0014] 3. The working method of the present invention utilizes a multi-purpose double-layer bracket attached to the outside of the insulated bucket arm truck, realizing uninterrupted power supply operation. It successfully solves the problems of numerous and complex tools, interference from insulated operating rods, and inconvenience in operation in existing methods, simplifies the work process, shortens the working time, and ensures a safe working distance. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of the multi-purpose double-layer bracket for the external attachment of the insulated bucket arm truck bed of the present invention.
[0016] In the attached diagram: 1. Hanger; 11. Inner hanger frame; 12. Outer hanger frame; 13. Hook plate; 14. Hanging rod; 15. Inner hanging plate; 16. First placement area; 17. Outer hanging plate; 18. Second placement area; 19. Mounting rod; 2. Instrument bracket; 21. Support rod; 22. Limit pin hole; 3. Anti-slip and anti-collision pad. Detailed Implementation
[0017] 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 a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.
[0018] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.
[0019] like Figure 1As shown, an insulated bucket truck bed external multi-purpose double-layer hanger includes a hanger 1. The hanger 1 includes an inner hanger frame 11, an outer hanger frame 12, and an inner hanger plate 15 and an outer hanger plate 17 installed in the outer hanger frame 12 for hanging tools. The top of the outer hanger frame 12 and the inner hanger frame 11 are connected to fix them together. Preferably, the outer hanger frame 12 and the inner hanger frame 11 are integrally formed, and there is a gap between the outer hanger frame 12 and the inner hanger frame 11, so that the outer hanger frame 12 and the inner hanger frame 11 form an inverted U-shaped hook for directly hanging the hanger 1 on the insulated bucket truck bed.
[0020] The external bracket frame 12 includes two side support plates that are parallel to each other and arranged opposite to each other; the inner hanging plate 15 and the outer hanging plate 17 are arranged parallel to each other and fixed between the two side support plates from top to bottom. The outer hanging plate 17 and the inner hanging plate 15 are spaced apart in the horizontal direction to form a first placement area 16, and the side of the outer hanging plate 17 away from the inner hanging plate 15 is a second placement area 18. A hook plate 13 matching the inner hanging plate 15 is fixed between the two side support plates above the inner hanging plate 15, and a hanging rod 14 matching the outer hanging plate 17 is fixed between the two side support plates above the outer hanging plate 17; the hook plate 13, hanging rod 14, inner hanging plate 15 and outer hanging plate 17 are all parallel to each other, the tool hanging on the inner hanging plate 15 is placed in the first placement area 16 with its lower side and supported on the hook plate 13 with its top, and the tool hanging on the outer hanging plate 17 is placed in the second placement area 18 with its lower side and supported on the hanging rod 14 with its top. Specifically: the inner hanging plate 15 and the outer hanging plate 17 are arranged horizontally, and the hook plate 13 is arranged vertically. The inner hanging plate 15 and the outer hanging plate 17 have multiple slots arranged along their length on their outward-facing side, and the hook plate 13 has multiple slots arranged along its length on its top side. The slots on the inner hanging plate 15 match the slots on the hook plate 13. In this embodiment, the slots on the inner hanging plate 15 are aligned with the insulating gun operating rod, the insulating operating rod, and the double-hook insulating... The size of the auxiliary rod is matched, and the slot on the hook plate 13 is used to limit the hook on the insulating operating rod. The cooperation between the slot on the inner hanging plate 15 and the slot on the hook plate 13 prevents the insulating operating rod from swinging. The slot on the outer hanging plate 17 is matched with the size of the arc-extinguishing switch, the insulating lead wire bracket, and the lead wire. The hanging rod 14 is used to limit the radial protrusion of the arc-extinguishing switch, the insulating lead wire bracket, and the lead wire. The cooperation between the slot on the outer hanging plate 17 and the hanging rod 14 prevents the tool from swinging.
[0021] The outer frame 12 and / or inner frame 11 are provided with anti-slip and anti-collision pads 3 on the side that contacts the insulated bucket arm. The anti-slip and anti-collision pads 3 are made of elastic material and can improve the friction between the outer frame 12 and inner frame 11 and the insulated bucket arm. In this application, the anti-slip and anti-collision pads 3 are only provided on the outer frame 12.
[0022] like Figure 1 As shown, an instrument bracket 2 is also installed on the inner frame 11. In this embodiment, the instrument bracket 2 is used to fix the insulation resistance tester. A horizontally arranged mounting rod 19 is installed on the inner frame 11. The top of the instrument bracket 2 is provided with a hook that matches the mounting rod 19. The instrument bracket 2 is fastened to the mounting rod 19 by the hook. Furthermore, a support rod is also hinged on the instrument bracket 2. The end of the support rod is provided with a hook. The inner frame 11 is provided with a plurality of vertically arranged limiting pin holes 22. A pin shaft that matches the hook on the support rod 21 is inserted into the limiting pin hole 22. After the instrument bracket 2 is fastened to the mounting rod 19 by the hook, the instrument bracket 2 can also rotate around the mounting rod 19 to adjust the angle of the instrument bracket 2. After the angle of the instrument bracket 2 is adjusted, the angle of the instrument bracket 2 is fixed by fastening the hook of the support rod 21 to the pin shaft.
[0023] The specific operating procedure of this device is as follows: First, hang the multi-purpose double-layer bracket on the insulated bucket arm truck bed. Then, hang the insulated gun operating rod, insulated operating rod, double-hook insulated auxiliary rod, insulated switch rod, arc suppression switch, insulated drain wire bracket, and insulated drain wire on the double-layer bracket. Install the insulation resistance detector on the instrument bracket, and then operate according to the following steps: S1. Operators shall perform voltage testing on lower-level cables, cable supports, upper-level live lines, insulators, and crossarms; specific safety operating requirements are as follows: S11. The operator adjusts the insulating bucket to the appropriate position, confirms with the work supervisor that the load at the end of the cable has been disconnected, and uses a voltage detector to test the cable lead to confirm that there is no voltage. S12. Use an electroscope to test live wires, insulators and crossarms to confirm that there is no leakage. S2. Operators shall inspect the cable fixing brackets and connecting leads to ensure they meet acceptance specifications and check the cable insulation to ground. Specific safety operating requirements are as follows: S21. The operator adjusts the insulating bucket to the appropriate position, checks whether the cable bracket is installed firmly, whether the grounding is good, whether the surface of the lead to be connected is flat and smooth and undamaged, and whether the insulator and surge arrester are free of dirt and damage, ensuring reliable connection and firm fixation.
[0024] S22. Remove the oxide layer from the surface of the grounding flat iron, use an insulation resistance tester to test the phase-to-phase and phase-to-ground insulation of the cable, and confirm that the insulation resistance value is not less than 500 MΩ. After the test is completed, each phase of the cable should be fully discharged. S3. The operator adjusts the insulated bucket arm to the appropriate position and installs the arc suppression switch and insulated drain wire bracket at the selected positions of the conductor in the order of middle, outer, and inner. The specific safety operation requirements are as follows: S31. The operator shall install the insulated lead wire bracket and the arc suppression switch in sequence at the selected hanging position of the conductor; during installation, the insulated lead wire shall not directly contact metal objects or grounding bodies; during operation, the effective insulation length of the insulated operating rod shall be not less than 0.7 meters; the installation of the insulated lead wire bracket and the arc suppression switch shall be carried out phase by phase; S32. Permission from the person in charge of the work must be obtained before the phase switching work is carried out during the installation process; S4. The operator moves to a suitable position below the lead wire splice point and removes the oxide layer from the three-phase conductors at the predetermined splice position in the order of inner, outer, and middle. Specific safety operation requirements are as follows: S41. During operation, the effective insulation length of the insulated operating rod should be maintained at no less than 0.7 meters. S42. Permission from the person in charge of the work should be obtained before transferring the work of removing the oxide layer and changing phase. S5. Operators shall perform insulation shielding on the conductors in the order of inner, outer, and middle shielding. Specific safety operating requirements are as follows: S51. During live-line work, the safe distance between the human body and the live conductor shall not be less than 0.4 meters. If the safe distance is not met, insulation shielding shall be provided. When setting up insulation shielding isolation measures, the movements shall be gentle, and the human body shall maintain a sufficient safe distance from other live conductors and conductors at different potentials. Insulation shielding isolation measures shall be tight and firm, and the overlap length between two insulation shielding devices shall not be less than 150 mm. The opening of rigid insulation shielding devices shall face downwards, be installed in place, and the opening shall not face different potentials. S52. During operation, the effective insulation length of the insulated operating rod should be maintained at no less than 0.7 meters. S53. Permission from the person in charge of the work should be obtained before the phase switching work is transferred during the shielding process; S54. The operator removes the oxide layer from the ends of the three-phase lead wires to be connected in the order of inside, outside, and center; the operator installs the double-hook insulating auxiliary rod and installs the clamps in the order of inside, outside, and center; the clamps of the three-phase lead wires to be connected are connected to the operating rod of the insulating gun and fixed at the crossbar of the double-hook insulating auxiliary rod. Install the double-hook insulated auxiliary rod: Arrange the leads to be connected, allow for the bend of the leads, place them on the double-hook insulated auxiliary rod fixing clamp, and install the lead end of the clamp; apply conductive grease to the inner surface of the clamp, install the clamp bolts in place, and ensure that the wedges of the clamp fit tightly with the conductor after installation, without any looseness; check the lead end, ensuring that there are no loose or broken strands, and that the lead end protrudes 1-3cm from the clamp; maintain a sufficient safe distance between personnel and live parts during the preparation of the leads to be connected; obtain permission from the person in charge of the work before preparing the leads to be connected; S55. Connect the clamp to the operating rod of the insulated gun and fix it at the upper hanging slot of the double-hook insulated auxiliary rod. Fix the lower end of the operating rod of the insulated gun in the slot of the double-hook insulated auxiliary rod. The clamp at the hanging slot of the double-hook insulated auxiliary rod should maintain a safe distance of not less than 0.4 meters from the live conductor.
[0025] S6. The operator adjusts the work position to a suitable location and removes the fixing clamps at both ends from the insulated lead wire bracket in the order of middle, outside, and inside. The insulated lead wire is then connected to the arc suppression switch conductive rod and the predetermined position of the same phase cable lead wire, respectively. Specific safety operation requirements are as follows: S61. Before connection, the operator shall confirm that the arc suppression switch is in the open position and the safety device is in the closed position. The operator shall use the operating rod of the insulated gun to operate the insulated lead wire to first connect to the conductive rod of the arc suppression switch, and then connect to the predetermined connection position of the same phase cable lead wire. After installation, the insulated lead wire shall not directly contact metal objects or grounding bodies. During the operation, the effective insulation length of the insulated operating rod shall be not less than 0.7m. The operator shall obtain the permission of the person in charge of the work before the phase switching work is transferred. S7. The operator adjusts the work position and closes the arc suppression switch in the order of middle, outer, and inner, and checks the no-load current. Specific safety operation requirements are as follows: S71. After the operator opens the interlocking device with the insulated lever, close the arc suppression switch and check the switch position status. The interlocking device should be restored in time. During the operation, the effective insulation length of the insulated operating lever should be not less than 0.7 meters. The operator should wear safety goggles. Before closing the arc suppression switch, the operator must obtain permission from the person in charge of the work. After closing the arc suppression switch, the interlocking device should be restored in time. S72. Place a clamp-on current tester at an appropriate position on the drain line. The person in charge of the work should confirm with the current meter that the bypass circuit has good current flow and the no-load current is not greater than 5A. S73. After closing the middle phase arc suppression switch and confirming current flow, with the permission of the work supervisor, use a voltage detector to check the voltage at the conductive rods of the outer and inner phase arc suppression switches in sequence to confirm that the load at the rear end of the cable has been removed. The operator then adjusts their work position to a suitable location and connects the unloaded cable line to the main line in the order of middle, outer, and inner. Specific safety operation requirements are as follows: S731. The operator moves to a suitable position on the middle phase conductor, removes the operating rod of the insulating gun from the double-hook insulating auxiliary rod, and uses the double-hook insulating auxiliary rod to remove the conductor shielding at the splice point on the main conductor; the operator uses the operating rod of the insulating gun to reliably connect the lead to be connected to the main conductor, ensuring a safe distance; the operator uses the double-hook insulating auxiliary rod to restore the insulation shielding and remove the double-hook insulating auxiliary rod, and installs the middle phase clamp shielding cover; the current of the spliced cable lead is tested to confirm that the current shunting is normal. S732. The operator moves to a suitable position on the outer phase conductor, removes the operating rod of the insulated gun from the double-hook insulated auxiliary rod, and uses the double-hook insulated auxiliary rod to remove the shielding of the conductor at the splice point on the main line; the operator uses the operating rod of the insulated gun to reliably connect the lead to be connected to the main line, ensuring a safe distance; the operator removes the double-hook insulated auxiliary rod; the current of the spliced cable lead is tested to confirm that the current shunting is normal; S733. The operator moves to a suitable position on the inner phase conductor, removes the operating rod of the insulated gun from the double-hook insulated auxiliary rod, and uses the double-hook insulated auxiliary rod to remove the shielding of the conductor at the splice point on the main line; the operator uses the operating rod of the insulated gun to reliably connect the lead to be connected to the main line, ensuring a safe distance; the operator removes the double-hook insulated auxiliary rod; the current of the cable being laid is tested to confirm that the current shunting is normal; During the splicing process in steps S731, S732, and S733 above: the inner surface of the clamp is coated with conductive grease; the lead wire and conductor are installed according to the corresponding cross-sectional area of the clamp; after installation, the wedge block and conductor are tightly fitted and should not be loose, and the clamp is located in the middle of the stripped wire opening; the lead wire is of appropriate length, with a smooth arc and suitable tightness, and the lead wire end faces the power supply side; the lead wire after splicing should not be subjected to force; the insulation seal is considered to have been restored (no longer sealed); during operation, the effective insulation length of the insulating operating rod should be not less than 0.7m.
[0026] S8. The operator adjusts the work position to a suitable location and removes the insulation shielding measures for the three-phase conductors in the order of middle, outer, and inner. The specific safety operation requirements are as follows: S81. Dismantle insulation shielding and isolation measures in accordance with the principle of "from far to near, from top to bottom, and from grounded to live conductors"; when dismantling insulation shielding and isolation measures, workers should move slowly to avoid large swings of the conductors, and maintain a sufficient safe distance between the human body and live conductors. When removing insulation shields, fall protection ropes should be used; permission should be obtained from the person in charge of the work before dismantling shields for phase switching.
[0027] S9. The operator adjusts the workstation to a suitable position and pulls the arc suppression switch in the order of inner, outer, and center. The specific safety operation requirements are as follows: S91. The operator uses the insulated lever to open the interlocking device, pulls the arc suppression switch, and checks the switch position status. The interlocking device should be restored in a timely manner. During the operation, the effective insulation length of the insulated operating lever should be no less than 0.7 meters, and the operator should wear safety goggles. When pulling the arc suppression switch, the working position should be appropriate, with no possibility of phase-to-phase or phase-to-ground short circuits. Before moving the working phase and pulling the upper arc suppression switch, permission must be obtained from the person in charge of the work. After pulling the arc suppression switch, the interlocking device should be restored in a timely manner. A clamp-on current detector should be placed at an appropriate position on the drain line, and the person in charge of the work should confirm that there is no current in the bypass circuit through the current meter.
[0028] S10. The operator adjusts the work position to a suitable location and removes the clamps at both ends of the insulated drain wire in the order of inner, outer, and center, fixing them to the insulated drain wire support component. Then, the arc suppression switch and the insulated drain wire support are removed in the order of inner, outer, and center. Specific safety operation requirements are as follows: S101. When using the insulated gun operating rod, the operator should first remove the clamp at the end of the insulated drain wire and fix it to the same-phase drain wire fixing bracket, then remove the clamp at the end of the arc suppression switch conductive rod and fix it to the same-phase insulated drain wire bracket; the operator should use the insulated gun operating rod to remove the same-phase arc suppression switch and the insulated drain wire bracket in sequence (insulation is considered to have been restored). During the operation, the effective insulation length of the insulated operating rod should be maintained at no less than 0.7 meters, and the operator should wear safety goggles; the operation phase must be transferred with the permission of the person in charge of the work; when removing the insulated drain wire, it is not allowed to touch the live parts of other phases.
[0029] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural transformations made under the concept of the present invention using the description and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.
Claims
1. An insulated bucket arm truck bucket external multi-purpose double-layer hanger, characterized by: The invention comprises a hanger (1), wherein the hanger (1) comprises an inner hanger frame (11), an outer hanger frame (12), and an inner hanging plate (15) and an outer hanging plate (17) installed in the outer hanger frame (12) for hanging tools. The outer hanger frame (12) and the inner hanger frame (11) are connected at the top to fix the two. A spacing is provided between the outer hanger frame (12) and the inner hanger frame (11), so that the outer hanger frame (12) and the inner hanger frame (11) form an inverted U-shaped hook for directly hanging the hanger (1) on the insulating bucket arm truck bucket.
2. The insulated bucket arm truck external multi-purpose double-layer hanger according to claim 1 is characterized by: The outer hanging plate (17) and the inner hanging plate (15) are spaced apart in the horizontal direction to form a first placement area (16), and the side of the outer hanging plate (17) away from the inner hanging plate (15) is a second placement area (18); a hook plate (13) matching the inner hanging plate (15) is fixed above the inner hanging plate (15), and a hanging rod (14) matching the outer hanging plate (17) is fixed above the outer hanging plate (17); the lower side of the tool hung on the inner hanging plate (15) is placed in the first placement area (16) and the top is supported on the hook plate (13), and the lower side of the tool hung on the outer hanging plate (17) is placed in the second placement area (18) and the top is supported on the hanging rod (14).
3. The insulated bucket arm truck bucket external multi-purpose double-layer hanger according to claim 2 is characterized by: The external rack frame (12) comprises two side support plates which are parallel to each other and arranged opposite to each other, a hook plate (13), a hanging rod (14), an inner hanging plate (15) and an outer hanging plate (17) are fixed between the two side support plates and arranged parallel to each other, and the inner hanging plate (15) is arranged above the outer hanging plate (17).
4. The insulated bucket arm truck external multi-purpose double-layer hanger according to claim 3 is characterized by: The inner hanging plate (15) and the outer hanging plate (17) are arranged horizontally, and the hook plate (13) is arranged vertically. The inner hanging plate (15) and the outer hanging plate (17) are provided with a plurality of slots arranged along the length direction on the side facing outward, and the hook plate (13) is provided with a plurality of slots arranged along the length direction on the top side. The slots on the inner hanging plate (15) match the positions of the slots on the hook plate (13).
5. The insulated bucket arm truck external multi-purpose double-layer hanger according to claim 1 is characterized by: The outer pylon frame (12) and / or the inner pylon frame (11) are provided with an anti-skid and anti-collision pad (3) on the side in contact with the insulating bucket arm bucket.
6. The insulated bucket arm truck bucket external multi-purpose double-layer hanger according to any one of claims 1 to 5, characterized in that: An instrument bracket (2) is also installed on the inner bracket frame (11), and a horizontally arranged mounting rod (19) is installed on the inner bracket frame (11). A hook matching the mounting rod (19) is provided at the top of the instrument bracket (2), and the instrument bracket (2) is mounted on the mounting rod (19) via the hook.
7. The insulated bucket arm truck external multi-purpose double-layer hanger according to claim 6, characterized in that: The instrument bracket (2) is also hinged with a support rod (21), and a hook is provided at the end of the support rod (21). The inner bracket frame (11) is provided with a plurality of limit pin holes (22) arranged in the vertical direction, and a pin shaft matching the hook on the support rod (21) is inserted into the limit pin hole (22). After the instrument bracket (2) is mounted on the mounting rod (19) by the hook, the hook of the support rod (21) is mounted on the pin shaft to fix the angle of the instrument bracket (2).
8. An operation method using the double-layer hanger according to claim 6 or 7, characterized in that: First, hang the double-layer rack on the insulating bucket arm bucket, hang the insulating gun operating rod, electric insulating gun operating rod, insulating operating rod, double-hook insulating auxiliary parallel rod, insulating pull rod, arc extinguishing switch, insulating drain wire bracket and insulating drain wire on the double-layer rack, install the insulation resistance tester on the instrument bracket, and then follow the steps below: S1. Operators conduct electrical tests on lower-level cables, cable supports, upper-level live lines, insulators and crossarms; S2. Operators check the cable fixing bracket device and connecting leads, and use insulation resistance tester to test the cable phase-to-phase and phase-to-ground insulation, and confirm that the insulation resistance value is not less than 500 MΩ. After the test is completed, the cable should be fully discharged phase by phase; S3. The operator adjusts the insulated bucket arm to the appropriate position, and then installs the arc extinguishing switch and the insulated drain wire bracket at the selected position of the conductor in the order of middle, outside and inside; S4. The operator moves to the position below the lead wire bonding point and removes the oxide layer of the wires at the predetermined bonding position of the three-phase wires in the order of inside, outside, and middle; S5. The operator shall perform insulation shielding on the conductors in the order of inner, outer and middle shielding; S6. The operator adjusts the workstation and removes the fixed wire clamps at both ends of the insulated drain wire bracket in the order of middle, outer, and inner, and connects the insulated drain wire to the arc extinguishing switch conductive rod and the predetermined position of the same-phase cable lead wire respectively; S7. The operator adjusts the workstation, closes the arc extinguishing switch in the order of middle, outside, and inside, and detects the no-load current; S8. The operators adjust their workstations and remove the insulation shielding measures of the three-phase conductors in the order of middle, outside, and inside; S9. The operator adjusts the workstation and pulls open the arc extinguishing switch in the order of inside, outside, and middle; S10. The operator adjusts the workstation and removes the wire clamps at both ends of the insulating drain wire in the order of inside, outside, and center, fixes them on the insulating drain wire bracket component, and then removes the arc extinguishing switch and the insulating drain wire bracket in the order of inside, outside, and center.