Power transmission line insulator locking pin dismounting and mounting integrated device

Abstract

The invention discloses a power transmission line insulator locking pin dismounting and mounting integrated device, and aims to provide a power transmission line insulator locking pin dismounting and mounting integrated device which can realize quick dismounting and mounting of a locking pin and is convenient to operate and high in practicability. The electric transmission line insulator locking pin dismounting and mounting integrated device can improve the operation efficiency and effectively avoid the problem that an insulator is damaged in the locking pin dismounting and mounting process. The device comprises a handle, a pin pressing assembly and a pin pulling assembly, the pin pressing assembly comprises a hooking piece rotationally arranged at one end of the handle and a pin pressing groove formed in the surface of the side wall of the handle, the pin pressing groove is close to one end of the handle, a clamping opening is formed in the hooking piece, and a clamping hook extending into the clamping opening is arranged at one end of the clamping opening; the pin pulling assembly comprises a supporting part fixedly arranged at the other end of the handle and a pinch bar fixed to the handle, and the pinch bar is close to the supporting part.

Description

Technical Field

[0001] This invention relates to a device for the integrated assembly and disassembly of locking pins for insulators in power transmission lines. Background Technology

[0002] Transmission lines are power lines that connect power plants and substations (substations) to transmit electrical energy from power plants to power load centers. Insulators in transmission lines not only ensure that current flows only in conductors, preventing current leakage to the ground or other conductors, but also withstand mechanical stresses such as wind force and tension, ensuring the stability and safety of the power system.

[0003] The locking pin of an insulator is a crucial component of the insulator string. It is inserted into the insulator's fittings and is typically classified as either an R-pin or a W-pin. These pins ensure a secure connection of the insulator string and prevent the insulator from falling off in harsh environments such as high voltage and high wind speeds. During insulator assembly, maintenance, and replacement, the locking pins need to be removed. After replacement, the locking pins are reinserted into the insulator's fittings. Removing the locking pins usually involves using a wrench or hammer to knock them out, or using a pin puller to hook them out. Reinstalling the locking pins involves using a wrench or hammer to drive them in. Currently, the installation and removal of insulator locking pins has the following shortcomings. Using a wrench or hammer to remove or install locking pins is inconvenient and can easily damage the insulator (e.g., hitting the glass or porcelain disc). Using current pin pullers has the following drawbacks: during high-altitude maintenance, the limited working space and the single support point of traditional pin pullers make it difficult to find a fixed point for applying force. Precise operation is required, demanding high technical skills and making the process inconvenient. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated device for disassembling and assembling locking pins of transmission line insulators, which not only enables rapid disassembly and installation of locking pins but also facilitates operation, improves work efficiency, and effectively avoids damage to insulators during the disassembly and assembly of locking pins.

[0005] The technical solution of this invention is: An integrated device for disassembling and assembling locking pins of transmission line insulators includes a handle, a pin pressing assembly, and a pin pulling assembly; The pin assembly includes a hook member rotatably mounted at one end of the handle and a pin groove provided on the side wall surface of the handle. The pin groove is close to one end of the handle, and the hook member is provided with a latch, one end of which is provided with a hook extending into the latch. The pin-pulling assembly includes a support portion fixedly mounted on the other end of the handle and a pry bar fixed to the handle, with the pry bar close to the support portion. The specific use of this integrated device for removing and installing locking pins of transmission line insulators is as follows. When removing the locking pin, a pin-pulling assembly is used. Specifically, one end of a pry bar is inserted into the locking pin (for example, one end of the pry bar is inserted into the hole at the end of an R-pin or W-pin), and the support is placed against the insulator's fittings. Then, the operator holds the handle and rotates it using the support as a fulcrum, thereby using the lever principle to pull out the locking pin. This operation is convenient, quick, and labor-saving, improving work efficiency and reducing labor intensity. Moreover, when removing the locking pin, it can effectively avoid impacting the insulator, thus effectively solving the problem of damage to the insulator caused by striking it with a wrench or hammer in existing technologies (for example, striking the glass or porcelain disc of the insulator).

[0006] During the installation of locking pins, a pressing pin assembly is used. Specifically, the hook engages with the insulator's fitting, with the insulator's fitting entering the hook's slot. The fitting extends through an opening on the side wall of the insulator's fitting and hooks the inside of the fitting. Then, the handle is rotated to allow the end of the locking pin to enter the pressing pin groove and press against the bottom surface of the groove, thus limiting the locking pin's position. Next, the handle is rotated again to press the locking pin end into the fitting through the pressing pin groove on the handle. This operation is convenient, quick, and saves time and effort, improving work efficiency and reducing labor intensity. Moreover, during the installation of locking pins, impacts to the insulator can be effectively avoided, thus effectively solving the problem of damage to the insulator caused by striking it with a wrench or hammer (e.g., striking the glass or porcelain disc of the insulator).

[0007] Preferably, the support has a recessed abutment surface on the side facing away from the handle. During the locking pin removal operation, the support rests against the insulator's fittings via the recessed abutment surface. This ensures that the support remains stably and reliably against the insulator's fittings while the operator holds the handle and rotates it using the support as a fulcrum, thus utilizing leverage to pull out the locking pin. This prevents slippage of the support, reduces the difficulty of the locking pin removal operation, and improves the efficiency of the operation.

[0008] Preferably, the pry bar extends along the axis of the contact arc surface. This way, when removing the locking pin, the operator can hold the handle and rotate it around the support, which helps the pry bar to remove the locking pin.

[0009] Preferably, the pin-pulling assembly also includes a blocking part and a connector that integrates the blocking part with the handle. A support part is located between the handle and the blocking part, forming an insulator passage between them. One end of the pry bar is a working end that engages with the locking pin. The support part and the blocking part are staggered along the axial direction of the pry bar, and the support part, blocking part, and working end are sequentially distributed along the axial direction of the pry bar. The inventors have discovered that during long-term use of the locking pin, it becomes difficult to pull it out (e.g., corrosion of the locking pin surface and / or pin hole), requiring significant force. When performing the locking pin removal operation under these conditions, the operator holds the handle and rotates it using the support part as a fulcrum, often applying considerable force to pull out the locking pin. This can easily lead to the operator being unable to release the force promptly after the locking pin is pulled out, resulting in the handle rotating too much and impacting the fragile parts of the insulator (e.g., striking the glass or porcelain disc of the insulator), causing damage to the insulator. To solve this problem, the inventors improved the pin-pulling assembly, specifically... When removing the locking pin, a pin-pulling assembly is used. Specifically, one end of a pry bar is inserted into the locking pin (e.g., one end of the pry bar is inserted into the hole at the end of an R-pin or W-pin). The insulator's fittings are inserted through the insulator's through-hole between the support and the blocking part, with the support part pressed against the insulator's fittings. At this point, the pry bar and the support part are on the same side of the insulator's fittings, while the support part and the blocking part are on opposite sides of the insulator's fittings, with a gap between the blocking part and the insulator's fittings. Then, the operator holds the handle and rotates it using the support part as a fulcrum, using the lever principle to pull out the locking pin. During this process, the blocking part can be used to limit the rotation angle of the handle. Once the angle of rotation of the handle with the support part as a fulcrum reaches the set value, the blocking part will press against the insulator's fittings (the insulator's fittings are made of metal with reliable hardness and strength, which can meet the low-voltage requirements of the blocking part without damage), thus preventing the handle from rotating too much and hitting the fragile parts of the insulator (e.g., hitting the glass or porcelain disc of the insulator), causing damage to the insulator.

[0010] Preferably, the blocking part has a recessed limiting arc surface on the side facing the handle. During the locking pin disengagement process, once the handle rotates to the set angle with the support part as the fulcrum, the blocking part will abut against the insulator's hardware through the recessed limiting arc surface. This ensures that the blocking part is stably and reliably abutted against the insulator's hardware, preventing the blocking part from slipping, thereby improving the stability of the blocking part in limiting the rotation angle of the handle.

[0011] Preferably, a rubber block is provided on the side of the blocking part facing the handle. During the disengagement of the locking pin, once the angle of rotation of the handle around the support part reaches the set value, the blocking part will abut against the insulator's hardware via the rubber block. This avoids rigid collision between the blocking part and the insulator's hardware, thus protecting the insulator's hardware. Furthermore, the rubber block deforms upon contact with the insulator's hardware, ensuring that the blocking part is stably and reliably abutted against the insulator's hardware, preventing slippage and improving the stability of the blocking part in limiting the rotation angle of the handle.

[0012] Preferably, the support and handle are integrally molded. This facilitates the actual manufacturing of the support and handle.

[0013] Preferably, the handle has a mounting hole near the support. Two locking nuts are connected to the pry bar, which passes through the mounting hole. The handle is positioned between the two locking nuts, which are then locked onto the handle. This facilitates the installation, removal, and replacement of the pry bar.

[0014] Preferably, the handle has a mounting hole located near the support, and the pry bar is connected to the mounting hole via a thread. This facilitates the installation, removal, and replacement of the pry bar.

[0015] Preferably, the hook and the holding component are integrally molded. This facilitates the actual processing and manufacturing of the hook and the holding component.

[0016] The beneficial effects of this invention are: it not only enables the quick disassembly and installation of locking pins, but also facilitates operation, improves work efficiency, and effectively avoids damage to insulators during the disassembly and installation of locking pins. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a structural embodiment of an integrated device for disassembling and assembling locking pins of transmission line insulators, which is a specific embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of a structure of an integrated device for disassembling and assembling locking pins of transmission line insulators, according to a specific embodiment two of the present invention.

[0019] Figure 3 yes Figure 2 Side view.

[0020] Figure 4 This is a schematic diagram of the structure of a transmission line insulator locking pin integrated installation and removal device during the locking pin insertion operation, according to a specific embodiment of the present invention.

[0021] Figure 5This is a schematic diagram of the structure of an integrated device for disassembling and assembling locking pins of transmission line insulators during the locking pin removal operation, according to a specific embodiment of the present invention.

[0022] Figure 6 This is a schematic diagram of the structure of a transmission line insulator locking pin disassembly and assembly integrated device in the second specific embodiment of the present invention during the locking pin release operation.

[0023] In the picture: Handle 1; 2. Pressing pin assembly, 2.1. Hook holding part, 2.2. Pressing pin groove, 2.3. Bayonet, 2.4. 3. Pulling pin assembly, 3.1. Support part, 3.2. Pry bar, 3.3. Working end, 3.4. Locking nut, 3.5. Abutting arc surface, 3.6. Blocking part, 3.7. Connecting piece, 3.8. Insulator through-hole, 3.9. Limiting arc surface; Insulator 4; Goldware 5; Locking pin 6. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Specific Implementation Example 1, such as Figure 1 As shown, an integrated device for disassembling and assembling locking pins of transmission line insulators includes a handle 1, a pin pressing assembly 2, and a pin pulling assembly 3.

[0025] The pin-pressing assembly 2 includes a hook 2.1 rotatably mounted at one end of the handle 1 and a pin-pressing groove 2.2 located on the side wall surface of the handle 1. The pin-pressing groove 2.2 is located near one end of the handle 1. The hook 2.1 is provided with a latch 2.3. One end of the latch 2.3 is provided with a hook 2.4 extending into the latch 2.3.

[0026] The pin-pulling assembly 3 includes a support 3.1 fixedly disposed at the other end of the handle 1 and a pry bar 3.2 fixedly disposed on the handle 1, with the pry bar 3.2 close to the support 3.1.

[0027] The specific use of the integrated device for disassembling and assembling locking pins of transmission line insulators in this embodiment is as follows. During the disengagement of locking pin 6, the pin-pulling assembly 3 is used. Specifically, as follows: Figure 5 As shown, insert one end of the pry bar 3.2 into the locking pin 6 (for example, insert one end of the pry bar 3.2 into the hole at the end of the R pin or W pin), and place the support part 3.1 against the hardware 5 of the insulator 4; then the operator holds the handle 1 and rotates the handle 1 with the support part 3.1 as the fulcrum, thereby using the lever principle to pull out the locking pin 6 (to Figure 5For example, the operator holds the handle 1 and rotates the handle 1 upwards using the support part 3.1 as the fulcrum, thereby using the lever principle to pull out the locking pin 6. This operation is convenient and quick, saving time and effort, improving work efficiency and reducing labor intensity. Moreover, when removing the locking pin 6, it can effectively avoid impacting the insulator 4, thus effectively solving the problem in the existing technology of using a wrench or hammer to knock out the locking pin 6, which is prone to hitting the insulator 4 (for example, hitting the glass disc or porcelain disc of the insulator 4), causing damage to the insulator 4 and resulting in damage to the insulator 4.

[0028] During the insertion of the locking pin 6, the pressing pin assembly 2 is used. Specifically, as follows: Figure 4 As shown, the hook 2.1 hooks the fitting 5 of the insulator 4, with the fitting 5 of the insulator 4 entering the slot 2.3 of the hook 2.1. The fitting 5 extends through the opening on the side wall of the fitting 5 and hooks the inner side of the fitting 5. Then, the handle 1 is rotated so that the end of the locking pin 6 enters the pressing pin groove 2.2 and abuts against the bottom surface of the pressing pin groove 2.2, thereby limiting the locking pin 6. Then, the handle 1 is rotated again to press the locking pin end into the fitting 5 through the pressing pin groove 2.2 of the handle 1. This operation is convenient and quick, saving time and effort, improving work efficiency and reducing labor intensity. Moreover, during the installation of the locking pin 6, it can effectively avoid impacting the insulator 4, thus effectively solving the problem in the existing technology of using a wrench or hammer to install the locking pin 6, which easily leads to impacting the insulator 4 (for example, hitting the glass disc or porcelain disc of the insulator 4), causing damage to the insulator 4.

[0029] The integrated device for removing and installing locking pins of transmission line insulators according to this embodiment can conveniently realize the removal of locking pins and the insertion of locking pins.

[0030] On the other hand, the universality of the integrated device for disassembling and assembling locking pins of insulators for transmission lines in this embodiment is that it can be applied to the disassembly and assembly of locking pins of insulators of various types of transmission lines.

[0031] In this embodiment, the handle 1, the pressing pin assembly 2, and the pulling pin assembly 3 are all made of metal.

[0032] For example, the handle 1, the pressure pin assembly 2, and the support 3.1 are all made of aluminum alloy, and the pry bar 3.2 is made of high-strength manganese steel. Of course, the pry bar 3.2 can also be made of aluminum alloy, stainless steel, or other metal materials, and the handle 1 and the support 3.1 can also be made of stainless steel or other metal materials.

[0033] In this embodiment, as Figure 1As shown, one end of the hook 2.1 is rotatably connected to one end of the handle 1 via a pivot. One end of the handle 1 has a mounting opening, and one end of the hook 2.1 and the pivot are located within the mounting opening. A latch 2.4 is located on the latch 2.3 at the end furthest from the pivot.

[0034] Furthermore, such as Figure 1 As shown, the hook 2.4 and the hook holder 2.1 are integrally formed. This facilitates the actual processing and manufacturing of the hook 2.4 and the hook holder 2.1.

[0035] Furthermore, such as Figure 1 As shown, the support part 3.1 has a recessed abutment arc surface 3.5 on the side facing away from the handle 1. When the locking pin 6 is disengaged, the support part 3.1 abuts against the hardware 5 of the insulator 4 through the recessed abutment arc surface 3.5. In this way, when the operator holds the handle 1 and rotates the handle 1 with the support part 3.1 as the fulcrum, thereby using the lever principle to pull out the locking pin 6, the support part 3.1 can be stably and reliably abutted against the hardware 5 of the insulator 4, avoiding slippage of the support part 3.1. This helps to reduce the difficulty of the locking pin 6 disengagement operation and improve the efficiency of the locking pin 6 disengagement operation.

[0036] In one implementation, such as Figure 1 , Figure 5 As shown, when the locking pin 6 is disengaged, the abutting arc surface 3.5 of the support part 3.1 abuts against the hardware 5 of the insulator 4.

[0037] In another embodiment, an arc-shaped rubber layer (not shown in the figure) is provided on the abutting arc surface 3.5, and the support part 3.1 abuts against the hardware 5 of the insulator 4 through the rubber layer on the abutting arc surface 3.5. In this way, on the one hand, rigid contact between the support part 3.1 and the hardware 5 of the insulator 4 can be avoided, which is beneficial to protecting the hardware 5 of the insulator 4; on the other hand, the rubber layer will deform after abutting against the hardware 5 of the insulator 4, thereby further ensuring that the support part 3.1 abuts against the hardware 5 of the insulator 4 stably and reliably, and preventing the support part 3.1 from slipping.

[0038] Furthermore, the support part 3.1 and the handle 1 are integrally formed. This facilitates the actual processing and manufacturing of the support part 3.1 and the handle 1.

[0039] It should be noted that the support part 3.1 and the handle 1 can also be manufactured separately, and then the support part 3.1 and the handle 1 can be welded together.

[0040] Furthermore, such as Figure 1 , Figure 5 As shown, the pry bar 3.2 extends along the axial direction of the abutting arc surface 3.5. Thus, when the locking pin 6 is disengaged, the operator holds the handle 1 and rotates the handle 1 with the support part 3.1 as the fulcrum, which facilitates the pry bar 3.2 to pry out the locking pin 6.

[0041] In this embodiment, the pry bar 3.2 is perpendicular to the handle 1. One end of the pry bar 3.2 is a working end 3.3 that mates with the locking pin 6. The working end 3.3 of the pry bar 3.2 has an arc-shaped bend. Inserting the locking pin 6 through the arc-shaped bend facilitates the pry bar 3.2 in prying out the locking pin 6.

[0042] The pry bar 3.2 is fixed to the handle 1 in the following way: In one implementation, such as Figure 1 As shown, the handle 1 has a mounting hole near the support 3.1. Two locking nuts 3.4 are connected to the pry bar 3.2 via threads, with the locking nuts 3.4 located near the other end of the pry bar 3.2. The pry bar 3.2 passes through the mounting hole. The handle 1 is positioned between the two locking nuts 3.4, which are then locked onto the handle 1. This facilitates the installation, removal, and replacement of the pry bar 3.2.

[0043] In another embodiment, the handle 1 has a mounting hole, which is a threaded hole. The mounting hole is located near the support 3.1, and the other end of the pry bar 3.2 is connected to the mounting hole via a thread. This facilitates the installation, removal, and replacement of the pry bar 3.2.

[0044] In the third embodiment, the pry bar 3.2 is fixed to the handle 1 by welding. This facilitates the installation of the pry bar 3.2 and ensures the stability of the connection between the pry bar 3.2 and the handle 1.

[0045] Specific embodiment two, such as Figure 2 , Figure 3 As shown, an integrated device for disassembling and assembling locking pins of transmission line insulators includes a handle 1, a pin pressing assembly 2, and a pin pulling assembly 3.

[0046] The pin-pressing assembly 2 includes a hook 2.1 rotatably mounted at one end of the handle 1 and a pin-pressing groove 2.2 located on the side wall surface of the handle 1. The pin-pressing groove 2.2 is located near one end of the handle 1. The hook 2.1 is provided with a latch 2.3. One end of the latch 2.3 is provided with a hook 2.4 extending into the latch 2.3.

[0047] The pin-pulling assembly 3 includes a blocking part 3.6, a support part 3.1 fixedly disposed at the other end of the handle 1, a pry bar 3.2 fixed to the handle 1, and a connector 3.7 connecting the blocking part 3.6 and the handle 1 as a whole. The pry bar 3.2 is close to the support part 3.1. The pry bar 3.2 is perpendicular to the handle 1. One end of the pry bar 3.2 is a working end 3.3 that mates with the locking pin 6. The support part 3.1 is located between the handle 1 and the blocking part 3.6, and an insulator passage 3.8 is formed between the support part 3.1 and the blocking part 3.6. The support part 3.1 and the blocking part 3.6 are staggered in the axial direction of the pry bar 3.2, and the support part 3.1, the blocking part 3.6, and the working end 3.3 are sequentially distributed in the axial direction of the pry bar 3.2. In this embodiment, the connector 3.7 is V-shaped, C-shaped, or U-shaped. Of course, the connector 3.7 can also be other shapes.

[0048] This embodiment of the integrated device for removing and installing locking pins of transmission line insulators can conveniently realize both the removal and installation of locking pins 6. Its specific use is as follows: During the disengagement of locking pin 6, the pin-pulling assembly 3 is used. Specifically, as follows: Figure 6 As shown, insert one end of the pry bar 3.2 into the locking pin 6 (for example, insert one end of the pry bar 3.2 into the hole at the end of the R pin or W pin), and place the support part 3.1 against the hardware 5 of the insulator 4; then the operator holds the handle 1 and rotates the handle 1 with the support part 3.1 as the fulcrum, thereby using the lever principle to pull out the locking pin 6 (to Figure 6 For example, the operator holds the handle 1 and rotates the handle 1 upwards using the support part 3.1 as the fulcrum, thereby using the lever principle to pull out the locking pin 6. This operation is convenient and quick, saving time and effort, improving work efficiency and reducing labor intensity. Moreover, when removing the locking pin 6, it can effectively avoid impacting the insulator 4, thus effectively solving the problem in the existing technology of using a wrench or hammer to knock out the locking pin 6, which is prone to hitting the insulator 4 (for example, hitting the glass disc or porcelain disc of the insulator 4), causing damage to the insulator 4 and resulting in damage to the insulator 4.

[0049] During the insertion of locking pin 6, the pressing pin assembly 2 is used. For details, please refer to... Figure 4As shown, the hook 2.1 hooks the fitting 5 of the insulator 4, with the fitting 5 of the insulator 4 entering the slot 2.3 of the hook 2.1. The fitting 5 extends through the opening on the side wall of the fitting 5 and hooks the inner side of the fitting 5. Then, the handle 1 is rotated so that the end of the locking pin 6 enters the pressing pin groove 2.2 and abuts against the bottom surface of the pressing pin groove 2.2, thereby limiting the locking pin 6. Then, the handle 1 is rotated again to press the locking pin end into the fitting 5 through the pressing pin groove 2.2 of the handle 1. This operation is convenient and quick, saving time and effort, improving work efficiency and reducing labor intensity. Moreover, during the installation of the locking pin 6, it can effectively avoid impacting the insulator 4, thus effectively solving the problem in the existing technology of using a wrench or hammer to install the locking pin 6, which easily leads to impacting the insulator 4 (for example, hitting the glass disc or porcelain disc of the insulator 4), causing damage to the insulator 4.

[0050] On the other hand, the inventors discovered that during long-term use, the locking pin 6 becomes difficult to remove (e.g., corrosion on the surface and / or pin hole), requiring considerable force to pull it out. When removing the locking pin 6 under these conditions, the operator holds the handle 1 and rotates it around the support 3.1, often applying significant force. This can easily lead to a situation where, after the locking pin 6 is removed, the operator cannot quickly release the force, causing the handle 1 to rotate too much and impact the fragile parts of the insulator 4 (e.g., striking the glass or porcelain disc of the insulator 4), damaging the insulator 4. To solve this problem, the inventors improved the pin-pulling assembly 3, specifically... During the disengagement of locking pin 6, the pin-pulling assembly 3 is used. Specifically, as follows: Figure 6 As shown, insert one end of the pry bar 3.2 into the locking pin 6 (for example, insert one end of the pry bar 3.2 into the hole at the end of the R pin or W pin); the fitting 5 of the insulator 4 enters between the support part 3.1 and the blocking part 3.6 through the insulator throughlet 3.8, and the support part 3.1 is pressed against the fitting 5 of the insulator 4. At this time, the pry bar 3.2 and the support part 3.1 are located on the same side of the fitting 5 of the insulator 4, and the support part 3.1 and the blocking part 3.6 are located on opposite sides of the fitting 5 of the insulator 4, with a gap between the blocking part 3.6 and the fitting 5 of the insulator 4; then the operator holds the handle 1 and rotates the handle 1 with the support part 3.1 as the fulcrum, using the lever principle to pull out the locking pin 6 (for example, insert one end of the pry bar 3.2 into the hole at the end of the R pin or W pin); Figure 6For example, the operator holds the handle 1 and rotates it upwards using the support part 3.1 as the fulcrum, thereby pulling out the locking pin 6 using the lever principle. During this process, the blocking part 3.6 can be used to limit the rotation angle of the handle 1. Once the angle of rotation of the handle 1 using the support part 3.1 as the fulcrum reaches the set value, the blocking part 3.6 will abut against the hardware 5 of the insulator 4 (the hardware 5 of the insulator 4 is made of metal and has reliable hardness and strength, which can meet the low voltage of the blocking part 3.6 without being damaged), thereby avoiding the problem of the handle 1 rotating too much and hitting the fragile parts of the insulator 4 (such as hitting the glass disc or porcelain disc of the insulator 4), causing damage to the insulator 4.

[0051] Furthermore, the universality of the integrated device for disassembling and assembling locking pins of insulators in this embodiment is that it can be applied to the disassembly and assembly of locking pins 6 of insulators 4 of various types of transmission lines.

[0052] In this embodiment, the handle 1, the pressing pin assembly 2, and the pulling pin assembly 3 are all made of metal.

[0053] For example, the handle 1, the pressure pin assembly 2, and the support 3.1 are all made of aluminum alloy, and the pry bar 3.2 is made of high-strength manganese steel. Of course, the pry bar 3.2 can also be made of aluminum alloy, stainless steel, or other metal materials, and the handle 1 and the support 3.1 can also be made of stainless steel or other metal materials.

[0054] In this embodiment, one end of the hook 2.1 is rotatably connected to one end of the handle 1 via a pivot. One end of the handle 1 is provided with a mounting port, and one end of the hook 2.1 and the pivot are located within the mounting port. The latch 2.4 is disposed on the end of the latch 2.3 away from the pivot.

[0055] Furthermore, the hook 2.4 and the hook holder 2.1 are integrally molded. This facilitates the actual processing and manufacturing of the hook 2.4 and the hook holder 2.1.

[0056] Furthermore, such as Figure 2 As shown, the support part 3.1 has a recessed abutment arc surface 3.5 on the side facing away from the handle 1. When the locking pin 6 is disengaged, the support part 3.1 abuts against the hardware 5 of the insulator 4 through the recessed abutment arc surface 3.5. In this way, when the operator holds the handle 1 and rotates the handle 1 with the support part 3.1 as the fulcrum, thereby using the lever principle to pull out the locking pin 6, the support part 3.1 can be stably and reliably abutted against the hardware 5 of the insulator 4, avoiding slippage of the support part 3.1. This helps to reduce the difficulty of the locking pin 6 disengagement operation and improve the efficiency of the locking pin 6 disengagement operation.

[0057] In one implementation, such as Figure 2 , Figure 6As shown, when the locking pin 6 is disengaged, the abutting arc surface 3.5 of the support part 3.1 abuts against the hardware 5 of the insulator 4.

[0058] In another embodiment, an arc-shaped rubber layer (not shown in the figure) is provided on the abutting arc surface 3.5, and the support part 3.1 abuts against the hardware 5 of the insulator 4 through the rubber layer on the abutting arc surface 3.5. In this way, on the one hand, rigid contact between the support part 3.1 and the hardware 5 of the insulator 4 can be avoided, which is beneficial to protecting the hardware 5 of the insulator 4; on the other hand, the rubber layer will deform after abutting against the hardware 5 of the insulator 4, thereby further ensuring that the support part 3.1 abuts against the hardware 5 of the insulator 4 stably and reliably, and preventing the support part 3.1 from slipping.

[0059] Furthermore, the support part 3.1 and the handle 1 are integrally formed. This facilitates the actual processing and manufacturing of the support part 3.1 and the handle 1.

[0060] It should be noted that the support part 3.1 and the handle 1 can also be manufactured separately, and then the support part 3.1 and the handle 1 can be welded together.

[0061] Furthermore, such as Figure 3 As shown, the pry bar 3.2 extends along the axial direction of the abutting arc surface 3.5. Thus, when the locking pin 6 is disengaged, the operator holds the handle 1 and rotates the handle 1 with the support part 3.1 as the fulcrum, which facilitates the pry bar 3.2 to pry out the locking pin 6.

[0062] In this embodiment, as Figure 3 As shown, the working end 3.3 of the pry bar 3.2 is provided with an arc-shaped bend. Inserting the locking pin 6 through the arc-shaped bend facilitates the pry bar 3.2 in prying out the locking pin 6.

[0063] The pry bar 3.2 is fixed to the handle 1 in the following way: In one implementation, such as Figure 3 As shown, the handle 1 has a mounting hole near the support 3.1. Two locking nuts 3.4 are connected to the pry bar 3.2 via threads, with the locking nuts 3.4 located near the other end of the pry bar 3.2. The pry bar 3.2 passes through the mounting hole. The handle 1 is positioned between the two locking nuts 3.4, which are then locked onto the handle 1. This facilitates the installation, removal, and replacement of the pry bar 3.2.

[0064] In another embodiment, the handle 1 has a mounting hole, which is a threaded hole. The mounting hole is located near the support 3.1, and the other end of the pry bar 3.2 is connected to the mounting hole via a thread. This facilitates the installation, removal, and replacement of the pry bar 3.2.

[0065] In the third embodiment, the pry bar 3.2 is fixed to the handle 1 by welding. This facilitates the installation of the pry bar 3.2 and ensures the stability of the connection between the pry bar 3.2 and the handle 1.

[0066] In this embodiment, the blocking part 3.6 is made of metal, one end of the connector 3.7 is connected to the handle 1 near the support part 3.1 by bolts or welding, and the other end of the connector 3.7 is connected to the blocking part 3.6 by bolts or welding.

[0067] In one implementation, such as Figure 2 As shown, the blocking part 3.6 has a recessed limiting arc surface 3.9 on the side facing the handle 1. During the disengagement of the locking pin 6, once the angle of rotation of the handle 1 with the support part 3.1 as the fulcrum reaches the set value, the blocking part 3.6 will abut against the hardware 5 of the insulator 4 through the recessed limiting arc surface 3.9. In this way, it can be ensured that the blocking part 3.6 can abut against the hardware 5 of the insulator 4 stably and reliably, avoiding slippage of the blocking part 3.6, thereby improving the stability of the blocking part 3.6 in limiting the rotation angle of the handle 1.

[0068] In another embodiment, the blocking part 3.6 has a recessed limiting arc surface 3.9 on the side facing the handle 1. The limiting arc surface 3.9 has an arc-shaped rubber layer. During the disengagement of the locking pin 6, once the angle of rotation of the handle 1 with the support part 3.1 as the fulcrum reaches the set value, the blocking part 3.6 will abut against the hardware 5 of the insulator 4 through the arc-shaped rubber layer of the limiting arc surface 3.9. In this way, it can be ensured that the blocking part 3.6 can abut against the hardware 5 of the insulator 4 stably and reliably, avoiding slippage of the blocking part 3.6, thereby improving the stability of the blocking part 3.6 in limiting the rotation angle of the handle 1.

[0069] In the third embodiment, a rubber block is provided on the side of the blocking part 3.6 facing the handle 1. During the disengagement of the locking pin 6, once the angle of rotation of the handle 1 with the support part 3.1 as the fulcrum reaches the set value, the blocking part 3.6 will abut against the hardware 5 of the insulator 4 through the rubber block. In this way, on the one hand, rigid collision between the blocking part 3.6 and the hardware 5 of the insulator 4 can be avoided, which is beneficial to protecting the hardware 5 of the insulator 4; on the other hand, the rubber block will deform after abutting against the hardware 5 of the insulator 4, thereby ensuring that the blocking part 3.6 can abut against the hardware 5 of the insulator 4 stably and reliably, avoiding slippage of the blocking part 3.6, which helps to improve the stability of the blocking part 3.6 in restricting the rotation angle of the handle 1.

[0070] In one example, the rubber block has a recessed limiting arc surface on the side facing the handle 1.

[0071] In another example, the side of the rubber block facing handle 1 is flat.

[0072] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, alterations, and equivalent transformations made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A device for assembling and disassembling a locking pin of a power transmission line insulator, characterized in that, The handle, the press pin assembly and the pin pulling assembly are included. The press pin assembly includes a hooking piece arranged at one end of the handle and a press pin slot arranged on the side wall surface of the handle, the press pin slot is close to the one end of the handle, the hooking piece is provided with a bayonet, and one end of the bayonet is provided with a clamping hook extending into the bayonet. The pin pulling assembly includes a support part fixedly arranged at the other end of the handle and a lever fixed on the handle, the lever is close to the support part.

2. The device according to claim 1, wherein the device is characterized in that, The support part is provided with a recessed abutting arc surface on the side away from the handle.

3. The device according to claim 2, wherein the device is characterized in that, The lever extends along the axial direction of the abutting arc surface.

4. A device for assembling and disassembling the locking pin of a power transmission line insulator according to claim 1, 2 or 3, characterized in that, The pin pulling assembly further includes a blocking part and a connecting piece connecting the blocking part and the handle, the support part is located between the handle and the blocking part, and an insulator is formed between the support part and the blocking part, one end of the lever is a working end matched with the locking pin, the support part and the blocking part are distributed in the axial direction of the lever, and the support part, the blocking part and the working end are sequentially distributed in the axial direction of the lever.

5. The device according to claim 4, wherein the device is characterized by: The blocking part is provided with a recessed limiting arc surface on the side facing the handle.

6. The device for assembling and disassembling the locking pin of the insulator of the power transmission line according to claim 4, characterized in that, The blocking part is provided with a rubber block on the side facing the handle.

7. A device for assembling and disassembling the locking pin of a power transmission line insulator according to claim 1, 2 or 3, characterized in that, The support part and the handle are integrally formed.

8. A device for assembling and disassembling the locking pin of a power transmission line insulator according to claim 1, 2 or 3, characterized in that, The handle is provided with a mounting hole close to the support part, the lever is connected with two locking nuts, the lever passes through the mounting hole, the handle is located between the two locking nuts, and the two locking nuts are locked on the handle.

9. A device for assembling and disassembling the locking pin of a power transmission line insulator according to claim 1, 2 or 3, characterized in that, The handle is provided with a mounting hole close to the support part, and the lever is connected with the mounting hole through threads.

10. A device for assembling and disassembling the locking pin of a power transmission line insulator according to claim 1, 2 or 3, characterized in that, The clamping hook and the hooking piece are integrally formed.

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