Auxiliary tool for fixing and replacing post insulators

Abstract

The present invention relates to the technical field of post insulator replacement, and discloses an auxiliary tool for post insulator fixing and replacement, which aims to improve the safe fixing of transmission cables and the replacement efficiency of post insulators; its fixing device consists of a hoop structure connected to the post insulator, a conductor pressure rod assembly hinged to one side, and a locking rod assembly locked with the hoop. At the same time, the proposed conductor support device includes a detachable clamp support rod assembly and horizontal and vertical support rod assemblies to temporarily fix the transmission cable. During the replacement operation of the post insulator based on the fixing device and the conductor support device, the operator can operate safely on the ground, so that the transmission cable and the post insulator form a spatial insulation gap, and then replace the post insulator, thereby improving the safety and efficiency of the replacement process, reducing the operation risk, and eliminating the need for power outages to replace the post insulator.

Description

Technical Field

[0001] The present invention relates to the technical field of post insulator replacement, and in particular to an auxiliary tool for fixing and replacing a post insulator. Background Art

[0002] Post insulators are a crucial insulating device in power systems, primarily used to support and insulate wires and cables, ensuring their safe and stable operation. After long-term use, post insulators may experience physical damage, aging, degradation, performance degradation, or reach the end of their service life and require replacement.

[0003] At present, the replacement of post insulators has the following problems:

[0004] First, the post insulators and transmission cables are currently fixed by binding. When the transmission cable is detached from the binding and fixation on the top of the post insulator, the transmission cable may swing in the air, posing a certain risk to workers working at heights. After the post insulator is replaced, it is necessary to eliminate the defect and then resume binding and fixation, which reduces work efficiency.

[0005] Second, when replacing the post insulators, in order to ensure the safety of the replacement operation, it is necessary to use an insulating maintenance rack or insulating platform, and high-altitude workers use insulating gloves to ensure the safety of the post insulator replacement process and avoid the risk of power line failure or electric shock. This increases the complexity and restrictions of the operation.

[0006] Third, when some insulation inspection racks or insulation platforms cannot be used due to environmental conditions, the replacement of column insulators requires power outages. Power outages have a greater impact on power supply, which will affect the power supply to downstream users, especially during peak electricity consumption periods. Extended power outages may cause inconvenience and economic losses.

[0007] In summary, in response to the current problems in the replacement of post insulators, an effective technical means is urgently needed to improve the efficiency of the replacement operation of post insulators and ensure the safety of operators. Summary of the Invention

[0008] In order to solve the above problems, the present invention provides a post insulator fixing device, which aims to improve the efficiency of post insulator replacement, ensure the safety of operators, and reduce operation risks.

[0009] The technical solution adopted in the present invention is:

[0010] An auxiliary tool for fixing and replacing a post insulator, comprising a conductor fixing device mounted on the post insulator to fix the transmission cable, and a conductor support device detachably mounted on the pole to temporarily fix the transmission cable;

[0011] The conductor fixing device includes a hoop structure connected to the post insulator, a conductor pressing rod assembly hingedly mounted on one side of the hoop structure, and a locking rod assembly hingedly mounted on one side of the conductor pressing rod assembly and capable of forming a lock with the other side of the hoop structure;

[0012] The conductor support device includes a clamp support rod assembly detachably mounted on the pole, a horizontal support rod assembly mounted on the clamp support rod assembly and parallel to the pole tower crossarm, and a vertical support rod assembly detachably connected to the clamp support rod assembly.

[0013] Furthermore, the hoop body structure of the wire fixing device includes a left hoop body and a right hoop body, and the left hoop body and the right hoop body are connected by bolts to form an integral hoop body structure; the outer side of the left hoop body is provided with a hinged mounting seat for cooperating with the wire pressing rod assembly, and the outer side of the right hoop body is provided with a forked locking hook for cooperating with the locking rod assembly.

[0014] Furthermore, the conductor pressure rod assembly includes an L-shaped pressure rod, and a conductor pressure block is installed on the pressure rod through an adjusting bolt; the bent end on one side of the pressure rod is hinged to the hinged mounting seat of the left hoop body, and the other side is formed with a mounting groove for matching the installation of the locking rod assembly, so that the pressure rod can be flipped relative to the hoop body structure and the post insulator; the adjusting bolt is installed in the middle of the pressure rod and is threadedly connected to the pressure rod; the conductor pressure block is installed at the end of the adjusting bolt that passes through the pressure rod toward the post insulator, and is rotatably connected to the adjusting bolt through a bearing, and the position of the conductor pressure block can be adjusted by the adjusting bolt.

[0015] Furthermore, the locking rod assembly includes an unlocking control rod, a locking control rod, and an unlocking pull ring; the unlocking control rod is L-shaped, and is hingedly installed at the mounting groove on the other side of the pushing rod, one end of the unlocking control rod is provided with a hinged mounting groove that matches the locking control rod, and the other end is installed with an unlocking pull ring; the locking control rod is S-shaped, one end of which passes through the mounting groove of the pushing rod and is hinged to one end of the unlocking control rod, and the other end is installed with a locking pin that matches the forked lock hook; when the locking rod assembly is in a locked state, the intersection point of the locking control rod and the unlocking control rod and the hinge point of the unlocking control rod and the pushing rod are located on the same vertical straight line, and the contact point of the locking pin and the forked lock hook is located on the inner side of the vertical straight line.

[0016] Furthermore, insulating rubber pads are installed at the places where the inner sides of the left and right hoop bodies contact the post insulators, and at the places where the conductor pressing block contacts the transmission cable.

[0017] Furthermore, the clamp support rod assembly includes a first support rod, which is a telescopic rod body, and a first pole clamp is hingedly installed at its bottom end. The second pole clamp is installed at the rod body section near the bottom end of the first support rod, and a universal joint is installed at the top of the first support rod to cooperate with the horizontal support rod assembly and the vertical support rod assembly.

[0018] Furthermore, the horizontal support rod assembly includes a horizontal support rod; a universal joint that cooperates with the clamp support rod assembly is installed in the middle of the horizontal support rod, and horizontal extension rods are slidably mounted on both ends; and a wire limiting hook is installed at the end of the horizontal extension rod.

[0019] Furthermore, the vertical support rod assembly includes a vertical support rod, one end of which is equipped with a universal joint that cooperates with the clamp support rod assembly, and the other end of which is equipped with a wire limit seat.

[0020] A post insulator replacement method is provided, which is based on the above-mentioned auxiliary tool for fixing and replacing a post insulator and comprises the following steps:

[0021] Step 1: Install a conductor fixing device on the post insulator, and fix the transmission cable to the top of the post insulator by installing a conductor pressing rod assembly and a locking rod assembly of the conductor fixing device;

[0022] Step 2: When the post insulator needs to be replaced, install a conductor support device on the pole and adjust the horizontal support rod assembly and the vertical support rod assembly of the conductor support device so that the transmission cable is located in the conductor limit hook of the horizontal support rod assembly and in the conductor limit seat of the vertical support rod assembly;

[0023] Step 3: fine-tune the first support rod of the clamp support rod group so that the horizontal support rod assembly and the vertical support rod assembly generate a stable upward support force for the transmission cable;

[0024] In step 4, the operator stands on the ground and operates the unlocking ring of the locking rod assembly of the conductor fixture using an insulating operating lever to unlock the locking rod assembly relative to the hoop structure of the conductor fixture. After unlocking, the pressing rod of the conductor pressing rod assembly is flipped outward by the force of the transmission cable, thereby creating an insulating gap between the transmission cable and the post insulator.

[0025] Step 5: The operator climbs the pole and replaces the post insulator;

[0026] Step 6: The operator stands on the ground and operates the unlocking ring of the locking rod assembly of the conductor fixing device using an insulating operating rod to restore the locking of the locking rod assembly and the hoop structure of the conductor fixing device. When locked, the transmission cable passes through the conductor pressure block of the conductor pressing rod assembly and is restrained to the top of the post insulator;

[0027] Step 7: Remove the conductor support assembly to complete the post insulator replacement operation.

[0028] Beneficial effects of the present invention:

[0029] 1. Improved security

[0030] Stable support: The conductor support device can provide reliable temporary support for the transmission cable during replacement operations, reducing the safety risks of operators. Insulated operation: The unlocking and locking operations performed by the insulated operating lever further improve operational safety and reduce the risk of electric shock.

[0031] 2. Improve efficiency

[0032] Easy installation: The conductor fixture and support device can be quickly installed and removed, shortening the replacement time and improving work efficiency. Fine-tuning capability: By adjusting the horizontal support rod and vertical support rod, it can flexibly adapt to the height and position of different cables to ensure smooth operation.

[0033] 3. Enhance adaptability

[0034] Versatile Design: This post insulator fixing and replacement tool is suitable for different types of post insulators and transmission cables, offering excellent versatility to meet the needs of diverse projects. Detachable: The conductor support device's detachable design allows it to be used in a variety of situations, adapting to diverse construction environments.

[0035] 4. Reduce operational difficulty

[0036] Simplify the operation process: Clear steps guide operators, making replacement operations simpler and easier, and reducing technical requirements. Reduce manpower requirements: Effective support and fixing equipment reduces dependence on manpower, allowing single-person or group operations to be completed smoothly.

[0037] 5. Improve working conditions

[0038] Reduce labor intensity: The support provided by the equipment can reduce the physical burden of operators and improve working comfort. Improve the working environment: During the operation, by effectively fixing and supporting the cables, the surrounding environment is ensured to be clean and safe, and the risks caused by loose cables are reduced.

[0039] 6. Maintain equipment and extend service life

[0040] Reduce losses: Effective fixing and support can reduce the shaking and wear of the transmission cable during the replacement process, extending the service life of the equipment. Protect insulators: During the replacement process, direct damage to the post insulators is avoided, ensuring their functional integrity and service life.

[0041] In summary, the auxiliary tool for fixing and replacing post insulators not only improves the safety and efficiency of replacement operations, but also improves working conditions and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction to the drawings required for use in the embodiments will be given below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0043] Figure 1 A schematic diagram of the auxiliary tool for fixing and replacing a post insulator of the present invention after installation;

[0044] Figure 2 This is a schematic diagram of the post insulator fixing device after installation of the present invention;

[0045] Figure 3 It is a structural schematic diagram of the wire support device of the present invention;

[0046] In the figure, 1. post insulator, 2. transmission cable, 3. conductor fixing device, 4. conductor support device, 5. left hoop body, 6. right hoop body, 7. hinged mounting seat, 8. forked locking hook, 9. top pressure rod, 10. adjusting bolt, 11. conductor pressure block, 12. unlocking control rod, 13. locking control rod, 14. unlocking pull ring, 15. locking pin, 16. first support rod, 17. first pole clamp, 18. second pole clamp, 19. universal joint, 20. horizontal support rod, 21. horizontal extension rod, 22. conductor limit hook, 23. vertical support rod, 24. conductor limit seat. DETAILED DESCRIPTION

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0048] In view of the existing problems in the replacement of post insulators, this embodiment provides an auxiliary tool for fixing and replacing post insulators. Figure 1 As shown, the auxiliary tool for fixing and replacing a post insulator includes two parts: one is a wire fixing device 3 installed on the post insulator 1 for fixing the transmission cable 2; the other is a wire support device 4 that is detachably installed on the pole when the post insulator 1 is replaced. The function of the wire support device 4 is to provide a certain supporting force for the transmission cable 2 and to limit the transmission cable 2 to prevent it from swinging in the air when the post insulator 1 is replaced.

[0049] To facilitate understanding of the specific structure and use of the auxiliary tool for fixing and replacing post insulators, the following structure and working principle are explained:

[0050] Wire fixture 3:

[0051] like Figure 1 and Figure 2 As shown, the conductor fixing device 3 includes a hoop structure connected to the post insulator 1, a conductor pressing rod assembly hingedly mounted on one side of the hoop structure, and a locking rod assembly hingedly mounted on one side of the conductor pressing rod assembly and capable of forming a lock with the other side of the hoop structure.

[0052] Among them, the hoop body structure of the wire fixing device 3 includes a left hoop body 5 and a right hoop body 6. Both the left hoop body 5 and the right hoop body 6 are semicircular structures. The left hoop body 5 and the right hoop body 6 are connected by bolts to form an integral hoop body structure; the outer side of the left hoop body 5 is provided with a hinged mounting seat 7 for cooperating with the wire pressing rod assembly, and the outer side of the right hoop body 6 is provided with a forked lock hook 8 for cooperating with the locking rod assembly.

[0053] The conductor pressure rod assembly includes an L-shaped pressure rod 9, and a conductor pressure block 11 installed on the pressure rod 9 by an adjusting bolt 10; the bent end on one side of the pressure rod 9 is hinged to the hinged mounting seat 7 of the left hoop body 5, and the pressure rod 9 can be flipped relative to the hoop body structure and the post insulator 1 through the hinge. The other side of the pressure rod 9 is formed with a mounting groove for matching the installation of the locking rod assembly; the adjusting bolt 10 is installed in the middle of the pressure rod 9 and is threadedly connected to the pressure rod 9; the conductor pressure block 11 is installed at the end of the adjusting bolt 10 that passes through the pressure rod 9 toward the post insulator 1; to achieve guidance, four column structures are formed on the top of the conductor pressure block 11, and the conductor pressure block 11 is rotatably connected to the adjusting bolt 10 through a bearing, and the position of the conductor pressure block 11 can be adjusted by the adjusting bolt 10.

[0054] The locking rod assembly includes an unlocking control rod 12, a locking control rod 13, and an unlocking pull ring 14; the unlocking control rod 12 is L-shaped, and is hingedly installed at the mounting groove on the other side of the pushing rod 9. One end of the unlocking control rod 12 is provided with a hinged mounting groove that matches the locking control rod 13, and the other end is installed with an unlocking pull ring 14; the locking control rod 13 is S-shaped, one end of which passes through the mounting groove of the pushing rod 9 and is hinged to one end of the unlocking control rod 12, and the other end is installed with a locking pin 15 that matches the forked lock hook 8; when the locking rod assembly is in a locked state, the intersection point of the locking control rod 13 and the unlocking control rod 12 and the hinge point of the unlocking control rod 12 and the pushing rod 9 are located on the same vertical straight line, and the contact point of the locking pin 15 and the forked lock hook 8 is located on the inner side of the vertical straight line.

[0055] Working principle of wire fixing device 3:

[0056] When the transmission cable 2 needs to be fixed, flip the top pressure rod 9 to Figure 2In the position shown, after the top pressure rod 9 is turned over, the conductor pressure block 11 presses the transmission cable 2 into the top groove of the post insulator 1. The degree of compression can be adjusted by adjusting the position of the conductor pressure block 11 by adjusting the bolt 10 to achieve the degree of compression; after the top pressure rod 9 is turned over, it can be pulled outward to the position by operating the unlocking ring 14. Figure 2 In the position shown, the unlocking control lever 12 rotates, thereby driving the locking control lever 13 to swing, so that the locking pin 15 enters the forked lock hook 8. Conversely, when it is necessary to disconnect the transmission cable 2, the unlocking pull ring 14 is manipulated to swing it inward, and the locking pin 15 can be disengaged from the forked lock hook 8, so that the pressing rod 9 can be flipped in the opposite direction, and the transmission cable 2 can be removed from the groove at the top of the post insulator 1.

[0057] Furthermore, in order to avoid damaging the post insulator 1 and the transmission cable 2 and to increase insulation, in this embodiment, insulating rubber pads are installed at the contact points between the inner sides of the left hoop body 5 and the right hoop body 6 and the post insulator 1, and at the contact points between the conductor pressing block 11 and the transmission cable 2.

[0058] Wire support device 4:

[0059] like Figure 1 and Figure 3 As shown, the conductor support device 4 includes a clamp support rod assembly that can be detachably mounted on the pole, a horizontal support rod assembly that is mounted on the clamp support rod assembly and parallel to the pole tower crossarm, and a vertical support rod assembly that can be detachably connected to the clamp support rod assembly.

[0060] The clamp support rod assembly includes a first support rod 16, which is a telescopic rod body. The bottom end of the first support rod 16 is hingedly mounted with a first pole clamp 17. The rod body section of the first support rod 16 near the bottom end is mounted with a second pole clamp 18. The first support rod 16 can be tilted and mounted on the pole through the first pole clamp 17 and the second pole clamp 18, and forms a triangular stable structure with the pole. Considering the installation of the horizontal support rod assembly and the vertical support rod assembly, as shown in the figure, Figure 3 As shown, a universal joint 19 is installed at the top end of the first support rod 16 to cooperate with the horizontal support rod assembly and the vertical support rod assembly.

[0061] like Figure 3As shown, the horizontal support rod assembly is parallel to the tower crossarm and includes a horizontal support rod 20; a universal joint 19 that cooperates with the clamp support rod assembly is installed in the middle of the horizontal support rod 20, and horizontal extension rods 21 are slidably mounted on both ends; the ends of the horizontal extension rods 21 are installed with wire limit hooks 22. The vertical support rod assembly can extend to the high-level transmission cable 2. The vertical support rod assembly includes a vertical support rod 23, one end of which is installed with a universal joint 19 that cooperates with the clamp support rod assembly, and the other end is installed with a wire limit seat 24. Among them, the wire limit hook 22 and the wire limit seat 24 are both used to limit the transmission cable 2 to prevent it from swinging in the air after being separated from the wire fixing device 3.

[0062] The conductor support device 4 is only installed when the post insulator 1 is replaced and needs to be removed after the post insulator 1 is replaced. The conductor limit hook 22 and the conductor limit seat 24 of the conductor support device 4 limit the transmission cable 2 during the replacement of the post insulator 1 to prevent it from being suspended and swinging after being separated from the conductor fixing device 3. Figure 1 As shown, by adjusting the fixing positions of the first pole clamp 17 and the second pole clamp 18 on the pole, the conductor support device 4 can generate an upward supporting force on the three groups of transmission cables 2. This upward supporting force helps to unlock the conductor fixing device 3, so that the transmission cables 2 can quickly escape from the top groove of the post insulator 1 and form a certain spatial insulation gap.

[0063] Based on the above auxiliary tool for fixing and replacing a post insulator, this embodiment further provides a post insulator replacement method, which includes the following steps:

[0064] Step 1: Install a conductor fixing device 3 on a post insulator 1, and fix the transmission cable 2 to the top of the post insulator 1 by installing a conductor pressing rod assembly and a locking rod assembly of the conductor fixing device 3;

[0065] Step 2: When the post insulator 1 needs to be replaced, install the conductor support device 4 on the pole, and adjust the horizontal support rod assembly and the vertical support rod assembly of the conductor support device 4 so that the transmission cable 2 is located in the conductor limit hook 22 of the horizontal support rod assembly and in the conductor limit seat 24 of the vertical support rod assembly;

[0066] Step 3: fine-tune the first support rod 16 of the clamp support rod assembly so that the horizontal support rod assembly and the vertical support rod assembly generate a stable upward support force for the transmission cable 2;

[0067] In step 4, the operator, standing on the ground, operates the unlocking ring 14 of the locking rod assembly of the conductor fixture 3 using an insulating operating lever to unlock the locking rod assembly relative to the hoop structure of the conductor fixture 3. After unlocking, the pressing rod 9 of the conductor pressing rod assembly is flipped outward by the force of the transmission cable 2. At this time, the transmission cable 2 is moved upward by the support force of the conductor support device 4, and an insulating gap is generated between the transmission cable 2 and the post insulator 1.

[0068] Step 5: The operator climbs the pole and replaces the post insulator 1;

[0069] In step 6, the operator stands on the ground and operates the unlocking ring 14 of the locking rod assembly of the conductor fixture 3 using an insulating operating rod to restore the locking of the locking rod assembly and the hoop structure of the conductor fixture 3. When locked, the transmission cable 2 passes through the conductor pressing block 11 of the conductor pressing rod assembly and is restrained to the top of the post insulator 1;

[0070] Step 7: dismantle the conductor support device 4 to complete the replacement operation of the post insulator 1.

[0071] Furthermore, this embodiment also verifies the effectiveness of the above-mentioned insulator replacement method:

[0072] Calculation based on a power outage for maintenance within a specific operating area: For example, for a 10kV distribution line, the load current is calculated as 120A, the power factor is 0.95, and the required power outage duration is 4 hours. The power loss is W = P × T = (1.732 × 10 × 120 × 0.95) × 4 = 7897.92 (kW / h). Using the insulator replacement method provided in this embodiment can achieve continuous power supply, improve power supply reliability and the credibility of power supply companies, significantly reduce complaint rates, increase industrial output value, and enhance the quality of life for residential users.

[0073] In summary, this post insulator fixing and replacement auxiliary tool, as well as the post insulator replacement method, effectively solves the difficulties encountered during live-line post insulator replacement using the insulating rod operation method. It addresses various issues encountered during live-line operations, scientifically transforms traditional operation methods, and reduces the duration and scope of power outages for users. Due to its flexible operation method, it ensures that the line can be operated without power outages, shortens cumbersome outage procedures, and allows for immediate scheduling of equipment troubleshooting, installation, and replacement, avoiding operational violations and safety risks. It even prevents equipment failures and personal electric shocks caused by live-line post insulator replacement. This improves operational efficiency and operational safety, enhancing the reliability of distribution line operation and maintenance. This post insulator fixing and replacement auxiliary tool, as well as the post insulator replacement method, improves the traditional insulated glove operation method used for insulator replacement, reducing labor and material resources, improving power supply reliability, and reducing the duration and scope of power outages for users.

[0074] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An auxiliary tool for fixing and replacing a post insulator, characterized by: It includes a conductor fixing device installed on a post insulator to fix the transmission cable, and a detachable conductor support device installed on a pole to temporarily fix the transmission cable; The conductor fixing device includes a hoop structure connected to the post insulator, a conductor pressing rod assembly hingedly mounted on one side of the hoop structure, and a locking rod assembly hingedly mounted on one side of the conductor pressing rod assembly and capable of forming a lock with the other side of the hoop structure; The conductor support device includes a clamp support rod assembly detachably mounted on the pole, a horizontal support rod assembly mounted on the clamp support rod assembly and parallel to the pole tower crossarm, and a vertical support rod assembly detachably connected to the clamp support rod assembly; The hoop structure of the wire fixing device includes a left hoop body and a right hoop body, which are connected by bolts to form an integral hoop structure; the outer side of the left hoop body is provided with a hinged mounting seat for matching the wire pressing rod assembly, and the outer side of the right hoop body is provided with a forked locking hook for matching the locking rod assembly; The conductor pressure rod assembly includes an L-shaped pressure rod, a conductor pressure block mounted on the pressure rod by an adjusting bolt; a bent end on one side of the pressure rod is hingedly connected to a hinged mounting seat of the left hoop body, and a mounting groove is formed on the other side thereof to cooperate with the installation of the locking rod assembly, so that the pressure rod can be flipped relative to the hoop body structure and the post insulator; an adjusting bolt is installed in the middle of the pressure rod and is threadedly connected to the pressure rod; the conductor pressure block is installed at the end of the adjusting bolt that passes through the pressure rod toward the post insulator, and is rotatably connected to the adjusting bolt via a bearing, so that the position of the conductor pressure block can be adjusted by the adjusting bolt; The locking rod assembly includes an unlocking control rod, a locking control rod, and an unlocking pull ring; the unlocking control rod is L-shaped, and is hingedly installed at the mounting groove on the other side of the pushing rod. One end of the unlocking control rod is provided with a hinged mounting groove that matches the locking control rod, and the other end is installed with an unlocking pull ring; the locking control rod is S-shaped, one end of which passes through the mounting groove of the pushing rod and is hinged to one end of the unlocking control rod, and the other end is installed with a locking pin that matches the forked lock hook; when the locking rod assembly is in a locked state, the intersection point of the locking control rod and the unlocking control rod and the hinge point of the unlocking control rod and the pushing rod are located on the same vertical straight line, and the contact point of the locking pin and the forked lock hook is located on the inner side of the vertical straight line.

2. The auxiliary tool for fixing and replacing a post insulator according to claim 1, characterized in that: Insulating rubber pads are installed at the places where the inner sides of the left and right hoop bodies contact the post insulators, and at the places where the conductor pressing block contacts the transmission cable.

3. The auxiliary tool for fixing and replacing a post insulator according to claim 2, characterized in that: The clamp support rod assembly includes a first support rod, which is a telescopic rod body, and a first pole clamp is hingedly installed at the bottom end of the first support rod. The second pole clamp is installed at the rod body section near the bottom end of the first support rod, and a universal joint is installed at the top end of the first support rod to cooperate with the horizontal support rod assembly and the vertical support rod assembly.

4. The auxiliary tool for fixing and replacing a post insulator according to claim 3, wherein: The horizontal support rod assembly includes a horizontal support rod; a universal joint that cooperates with the clamp support rod assembly is installed in the middle of the horizontal support rod, and horizontal extension rods are slidably sleeved on both ends; and a wire limiting hook is installed at the end of the horizontal extension rod.

5. The auxiliary tool for fixing and replacing a post insulator according to claim 1, wherein: The vertical support rod assembly comprises a vertical support rod, one end of which is provided with a universal joint that cooperates with the clamp support rod assembly, and the other end of which is provided with a wire limiting seat.

6. A post insulator replacement method, the post insulator replacement method being based on the post insulator fixing and replacement auxiliary tool according to claim 5, characterized in that: The following steps are involved: Step 1: Install a conductor fixing device on the post insulator, and fix the transmission cable to the top of the post insulator by installing a conductor pressing rod assembly and a locking rod assembly of the conductor fixing device; Step 2: When the post insulator needs to be replaced, install a conductor support device on the pole and adjust the horizontal support rod assembly and the vertical support rod assembly of the conductor support device so that the transmission cable is located in the conductor limit hook of the horizontal support rod assembly and in the conductor limit seat of the vertical support rod assembly; Step 3: fine-tune the first support rod of the clamp support rod group so that the horizontal support rod assembly and the vertical support rod assembly generate a stable upward support force for the transmission cable; In step 4, the operator stands on the ground and operates the unlocking ring of the locking rod assembly of the conductor fixture using an insulating operating lever to unlock the locking rod assembly relative to the hoop structure of the conductor fixture. After unlocking, the pressing rod of the conductor pressing rod assembly is flipped outward by the force of the transmission cable, thereby creating an insulating gap between the transmission cable and the post insulator. Step 5: The operator climbs the pole and replaces the post insulator; Step 6: The operator stands on the ground and operates the unlocking ring of the locking rod assembly of the conductor fixing device using an insulating operating rod to restore the locking of the locking rod assembly and the hoop structure of the conductor fixing device. When locked, the transmission cable passes through the conductor pressure block of the conductor pressing rod assembly and is restrained to the top of the post insulator; Step 7: Remove the conductor support assembly to complete the post insulator replacement operation.

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