Iron tower convenient for replacing insulator chain

Abstract

The invention relates to an iron tower convenient for replacing an insulator chain, which comprises an iron tower body, the iron tower body is detachably connected with the insulator chain, and the iron tower body is detachably connected with an auxiliary mounting device; the auxiliary installation device comprises an installation box connected to the iron tower body and an auxiliary installation frame used for assembling an insulator chain, the installation box is fixedly connected to the iron tower body, a sliding groove is formed in the installation box, the insulator chain comprises a connecting piece and a plurality of insulator elements, and the adjacent insulator elements are detachably connected end to end; the auxiliary mounting frame comprises a guide frame, a positioning rod is slidably connected to the guide frame, positioning rods are fixedly connected to the two ends of the positioning rod, a sliding sleeve is slidably connected to the two sides of the guide frame in the length direction, two supporting rods are slidably connected to the positioning rod, a guide sleeve is fixedly connected to one end of each supporting rod, and the guide sleeve is slidably connected to the positioning rod. And the guide sleeve is in threaded connection with a bolt. The insulator string replacement device has the effect of facilitating replacement of the insulator string.

Description

Technical Field

[0001] This application relates to the technical field of maintenance of power transmission equipment, and particularly to a tower that facilitates the replacement of insulator strings. Background Art

[0002] High-voltage transmission lines are an important part of power transmission, and their stability and safety are directly related to the reliable operation of the power grid. As a key component for supporting and isolating cables, insulator strings are exposed to the outdoor environment for a long time and are easily affected by factors such as aging, pollution, and lightning strikes, resulting in a decline in performance or even failure. Therefore, it is necessary to regularly inspect and replace the insulator strings.

[0003] Currently, the replacement of insulator strings at home and abroad mainly relies on manual climbing of towers or the use of large mechanical equipment. When replacing insulator strings, the old insulator strings need to be removed and then new insulator strings need to be installed. However, the existing methods are not convenient for installation. With the expansion of the power grid scale and the aggravation of line aging problems, there is an urgent need for a technology that facilitates the replacement of insulator strings. Summary of the Invention

[0004] In order to facilitate the replacement of insulator strings, this application provides a tower that facilitates the replacement of insulator strings.

[0005] The tower that facilitates the replacement of insulator strings provided by this application adopts the following technical solutions: A tower that facilitates the replacement of insulator strings includes a tower body, an insulator string is detachably connected to the tower body, and an auxiliary installation device is detachably connected to the tower body; the auxiliary installation device includes an installation box connected to the tower body and an auxiliary installation frame for assembling the insulator string. The installation box is fixedly connected to the tower body, and a chute is opened on the installation box. The insulator string includes a connecting member and a plurality of insulator elements, and the adjacent insulator elements are detachably connected end to end. The connecting member is slidably connected in the chute; the auxiliary installation frame includes a guiding frame, a positioning rod is slidably connected to the guiding frame, both ends of the positioning rod are fixedly connected with positioning rods, the sliding sleeves are slidably connected to both sides in the length direction of the guiding frame, and bolts are threadedly connected to the sliding sleeves; two support rods are slidably connected to the positioning rod, one end of each support rod is fixedly connected with a guiding sleeve, the guiding sleeve is slidably connected to the positioning rod, and bolts are threadedly connected to the guiding sleeve. The support rods are used to abut and support the bottommost insulator element to prevent the insulator element from shaking under the action of wind force.

[0006] By adopting the above technical solution, when the user uses it and installs the insulator string, first snap the connecting piece into the installation box, bolt the first insulator element to the bottom of the connecting piece, make the support rod abut and support on both sides of the installation column of the insulator element at the bottom, the support rod fixes the installation column to prevent the installation column from shaking, insert the installation column into the card slot of the connecting head of the next insulator element, and then snap the locking ring into the card slot, then the two adjacent insulator elements can be connected and fixed. Finally, slide the assembled insulator string in the chute to the position of the previous insulator string, and the replacement and installation of the insulator string can be completed.

[0007] Optionally, one end of the guiding frame is rotatably connected to the tower body, and the other end is set as a free end.

[0008] By adopting the above technical solution, when the user uses it, after the replacement is completed, the guiding frame rotates downward around the hinge point, which is convenient for storing the guiding frame.

[0009] Optionally, an installation column is fixedly connected to the bottom of the insulator element, a limiting column is fixedly connected to the end of the installation column, a connecting head is fixedly connected to the top of the insulator element, a card slot for accommodating the limiting column is opened in the connecting head, a notch groove is opened in the connecting head for making way for the installation column, and a locking ring is inserted into the card slot, and the locking ring is used for inserting into the card slot.

[0010] By adopting the above technical solution, when the user uses it, the locking ring extends to the bottom of the connecting head and presses the connecting head against the inner wall of the card slot, that is, the installation and matching of the insulator string. Two adjacent insulator elements can be assembled together, and different numbers of insulator elements can be assembled according to requirements.

[0011] Optionally, the connecting piece includes a sliding plate, a sliding rod is fixedly connected to the bottom of the sliding plate, the sliding rod is slidably connected in the chute, a limiting block is fixedly connected to the outside of the sliding rod, and a plurality of clamping blocks are fixedly connected to the bottom of the limiting block. Two step grooves are formed between the limiting block and the clamping blocks; two guiding plates are fixedly connected to the bottom of the installation box, the guiding plates are located on both sides of the chute, a guide rail is slidably connected to the top of the guiding plate, a plurality of convex blocks are symmetrically opened on the top of the guide rail, and a limiting groove is formed between adjacent convex blocks for the limiting block to be inserted, and a plurality of blocking blocks are fixedly connected to the guide rail below the convex blocks, and a positioning groove is formed between adjacent blocking blocks for the clamping block to be inserted.

[0012] By adopting the above technical solution, when the user uses it, the limiting block of the connecting piece is inserted into the limiting groove, and the clamping block is snapped into the positioning groove, then the insulator string can be double-limited in the horizontal direction.

[0013] Optionally, a screw rod is rotatably connected to one end of the guide rail, and a positioning rod is fixedly connected to the bottom of the installation box, and the screw rod is threadedly connected to the positioning rod.

[0014] By adopting the above technical solution, when in use, the user rotates the screw on one of the guide rails, so that the screw pushes the guide rail to slide, causing the bumps on the two guide rails to stagger from each other, and the stoppers on the two guide rails to stagger from each other, enabling the bumps to support the limit blocks and the stoppers to support the latch blocks, facilitating the sliding of the insulator string installed on one side in the chute. The limit blocks slide along the bumps, and the latch blocks slide along the tops of the stoppers. After sliding to an appropriate position, the screw is rotated in the reverse direction to drive the guide rail to reset, making the bumps on both sides of the guide rail correspond one by one, and the stoppers correspond one by one, so that the limit blocks are clamped in the limit grooves and the latch blocks are clamped in the positioning grooves, thereby achieving double limit on the insulator string in the horizontal direction.

[0015] Optionally, a locking plate is fixedly connected to the lower part of the latch block where the sliding rod is located. The locking plate is used to abut against the bottoms of the two guide plates. A fixing sleeve is fixedly connected to the bottom of the locking plate. Locking holes are symmetrically formed on the fixing sleeve. A round hole is formed at the bottom of the sliding rod where the locking plate is located. After a bolt passes through the round hole and the locking holes, it is threadedly connected with a nut.

[0016] By adopting the above technical solution, when in use, after the bolt passes through the round hole and the locking holes and is threadedly connected with the nut, the fixing sleeve and the sliding rod can be fixed, and at the same time, the locking plate abuts against the bottoms of the guide plates to position the insulator string vertically.

[0017] Optionally, positioning holes are formed on the symmetric two sides of the installation box. Fixing plates are fixedly connected to both ends of the sliding plate. Fixing holes are formed on the fixing plates. After a bolt passes through the positioning holes and the fixing holes, it is threadedly connected with a bolt.

[0018] By adopting the above technical solution, when in use, after the bolt passes through the positioning holes and the fixing holes and is threadedly connected with the bolt, the sliding plate can be fixed to the installation box, thereby realizing the fixation of the insulator string.

[0019] Optionally, a blanking port is formed at the end of the installation box away from the positioning frame. The caliber of the blanking port is larger than the size of the sliding plate. The blanking port is communicated with the chute so that the sliding plate can slide into the blanking port and fall out of the installation box.

[0020] By adopting the above technical solution, when in use, the user can slide the insulator string to be replaced in the direction of the blanking port, so that the sliding plate exits from the blanking port, thereby removing the damaged insulator string.

[0021] In summary, the present application includes at least one of the following beneficial technical effects: 1. An installation box on the iron tower body and an auxiliary installation frame for assembling an insulator string are provided. The installation box is fixedly connected to the iron tower body, and a chute is provided on the installation box. The insulator string includes a connecting member and a plurality of insulator elements, and the adjacent insulator elements are detachably connected end to end. The auxiliary installation frame includes a guiding frame, on which a positioning rod is slidably connected. Both ends of the positioning rod are fixedly connected with positioning rods. A sliding sleeve is slidably connected to both sides in the length direction of the guiding frame, and a bolt is threadedly connected to the sliding sleeve. Two support rods are slidably connected to the positioning rod. One end of each support rod is fixedly connected with a guiding sleeve, which is slidably connected to the positioning rod, and a bolt is threadedly connected to the guiding sleeve. The support rods are used to abut and support the bottommost insulator element. When replacing the insulator string, first, the connecting member is clamped in the installation box, the first insulator element is bolted to the bottom of the connecting member, the support rods are abutted and supported on both sides of the installation column of the bottommost insulator element, and the support rods fix the installation column to prevent it from shaking. Then, the installation column is inserted into the card slot of the connection head of the next insulator element, and finally, the locking ring is clamped in the card slot, so that two adjacent insulator elements can be connected and fixed. Finally, the assembled insulator string is slid in the chute to the position of the previous insulator string, and the replacement and installation of the insulator string can be completed. 2. A limiting block is fixedly connected to the outside of the sliding rod, and a plurality of clamping blocks are fixedly connected to the bottom of the limiting block. Two step grooves are formed between the limiting block and the clamping blocks. Two guiding plates are fixedly connected to the bottom of the installation box, which are located on both sides of the chute. The top of the guiding plate is slidably connected with a guide rail. A plurality of convex blocks are symmetrically provided on the top of the guide rail. A limiting groove is formed between adjacent convex blocks for the limiting block to be inserted. A plurality of blocking blocks are fixedly connected to the guide rail below the convex blocks. A positioning groove is formed between adjacent blocking blocks for the clamping block to be inserted. The limiting block of the connecting member is inserted into the limiting groove, and the clamping block is clamped in the positioning groove, so that the insulator string can be double-limited in the horizontal direction. Description of the Drawings

[0022] Figure 1 is the overall structural schematic diagram of the present application; Figure 2 is the exploded view of the insulator string 2; Figure 3 is the structural schematic diagram of the insulator string 2, the auxiliary installation device and the iron tower body; Figure 4 is the sectional view of the insulator string 2 and the auxiliary installation device; Figure 5 is the structural schematic diagram of the insulator string 2 and the auxiliary installation device; Figure 6 is Figure 5 the enlarged view of part A of

[0023] Description of reference numerals: 1. Tower body; 2. Insulator string; 21. Connector; 211. Sliding plate; 2111. Fixed plate; 2112. Fixed hole; 212. Sliding rod; 213. Limiting block; 214. Clamping block; 215. Step groove; 216. Locking plate; 217. Fixed sleeve; 218. Locking hole; 219. Round hole; 22. Insulator element; 221. Mounting post; 222. Connecting head; 223. Card slot; 224. Notch groove; 225. Locking ring; 3. Auxiliary installation device; 31. Auxiliary installation frame; 311. Guide frame; 312. Positioning rod; 313. Sliding sleeve; 314. Support rod; 315. Guide sleeve; 32. Installation box; 321. Slide groove; 322. Positioning hole; 323. Feeding port; 33. Guide plate; 331. Guide rail; 332. Convex block; 333. Limiting groove; 334. Stop block; 335. Positioning groove; 34. Screw. Detailed implementation manners

[0024] The following further elaborates on this application in conjunction with the attached Figures 1-6 drawings for a more detailed description.

[0025] An embodiment of this application discloses a tower facilitating the replacement of the insulator string 2. Referring to Figure 1 the drawings, it includes a tower body 1. An insulator string 2 is arranged on the tower body 1. The insulator string 2 is used to support and fix the cable on the tower body 1. An auxiliary installation device 3 is arranged on the tower body 1, and the auxiliary installation device 3 facilitates the replacement of the insulator string 2.

[0026] Referring to Figure 2, the insulator string 2 includes a connecting member 21 and a plurality of insulator elements 22 that are connected end to end. The connecting member 21 is used to fixedly connect the insulator string 2 to the tower body 1. The insulator elements 22 can be made of ceramic or glass materials. Two mounting plates are fixedly connected to the top of the first insulator element 22. Through holes are formed in the mounting plates. A through hole is fixedly connected to the bottom of the connecting member 21. After a bolt passes through the through hole of the mounting plate and the through hole of the connecting member 21, a nut is threadedly connected, so that the first insulator element 22 can be fixed to the connecting member 21. An installation column 221 is fixedly connected to the bottom of the insulator element 22, and a limiting column is fixedly connected to the end of the installation column 221. Except for the first insulator element 22, a connecting head 222 is fixedly connected to the top of the insulator element 22. A clamping groove 223 for accommodating the limiting column is formed in the connecting head 222. A notch groove 224 is formed in the connecting head 222, and the notch groove 224 is used to make way for the installation column 221. A locking ring 225 is inserted into the clamping groove 223. The locking ring 225 is used to be inserted into the clamping groove 223. The locking ring 225 extends to the bottom of the connecting head 222 and presses the connecting head 222 against the inner wall of the clamping groove 223, that is, the installation and cooperation of the insulator string 2. Adjacent two insulator elements 22 can be assembled together, and different numbers of insulator elements 22 can be assembled according to requirements.

[0027] Refer to Figure 3 and Figure 4 , the auxiliary installation device 3 includes an installation box 32 connected to the tower body 1 and an auxiliary installation frame 31 for assembling the insulator string 2. The installation box 32 is fixedly connected to the tower body 1. A sliding groove 321 is formed in the installation box 32. The sliding groove 321 is located in the middle of the installation box 32 and is arranged along the length direction of the installation box 32. The connecting member 21 of the insulator string 2 passes through the sliding groove 321 and can slide in the sliding groove 321.

[0028] The auxiliary mounting bracket 31 includes a guiding bracket 311. The end of the guiding bracket 311 is rotatably connected to the iron tower body 1, which is convenient for storing the guiding bracket 311. The guiding bracket 311 is square-shaped. The guiding bracket 311 rotates downward around the hinge point. A positioning rod 312 is slidably connected to the guiding bracket 311. Both ends of the positioning rod 312 are fixedly connected to the positioning rod 312. The sliding sleeve 313 is slidably connected to both sides in the length direction of the guiding bracket 311, and a bolt is threadedly connected to the sliding sleeve 313. Two support rods 314 are slidably connected to the positioning rod 312. One end of the support rod 314 is fixedly connected to a guiding sleeve 315. The guiding sleeve 315 is slidably connected to the positioning rod 312, and a bolt is threadedly connected to the guiding sleeve 315. The support rod 314 is used to abut and support the lowermost insulator element 22, limit the bottom insulator element 22, and prevent the insulator element 22 from shaking under the action of wind, so as to facilitate the installation of the bottom insulator element 22. When installing the insulator string 2, first snap the connecting piece 21 into the installation box 32, bolt-fix the first insulator element 22 to the bottom of the connecting piece 21, make the support rod 314 abut and support both sides of the installation column 221 of the bottom insulator element 22. The support rod 314 fixes the installation column 221 to prevent the installation column 221 from shaking, insert the installation column 221 into the card slot 223 of the connecting head 222 of the next insulator element 22, and then snap the locking ring 225 into the card slot 223 to connect and fix two adjacent insulator elements 22.

[0029] Refer to Figure 2 and Figure 5 、 Figure 6, the connecting member 21 further includes a sliding plate 211. A sliding rod 212 is fixedly connected to the bottom of the sliding plate 211. The sliding rod 212 is slidably connected in the chute 321. A limiting block 213 is fixedly connected to the outside of the sliding rod 212. A plurality of clamping blocks 214 are fixedly connected to the bottom of the limiting block 213. The size of the clamping block 214 is smaller than that of the limiting block 213. Two stepped grooves 215 are formed between the limiting block 213 and the clamping block 214; two guiding plates 33 are fixedly connected to the bottom of the mounting box 32. The guiding plates 33 are located on both sides of the chute 321. A guide rail 331 is slidably connected to the top of the guiding plate 33. A plurality of convex blocks 332 are symmetrically formed on the top of the guide rail 331. A limiting groove 333 is formed between adjacent convex blocks 332 for the limiting block 213 to be inserted. A plurality of blocking blocks 334 are fixedly connected to the guide rail 331 below the convex blocks 332. A positioning groove 335 is formed between adjacent blocking blocks 334 for the clamping block 214 to be inserted. One end of the guide rail 331 is rotatably connected to a screw rod 34. A positioning rod 312 is fixedly connected to the bottom of the mounting box 32. The screw rod 34 is threadedly connected to the positioning rod 312; rotate the screw rod 34 on one of the guide rails 331 to push the guide rail 331 to slide, so that the convex blocks 332 on the two guide rails 331 are staggered from each other, and the blocking blocks 334 on the two guide rails 331 are staggered from each other, so that the convex blocks 332 can support the limiting block 213, and the blocking blocks 334 can support the clamping block 214, which is convenient for sliding the insulator string 2 installed on one side in the chute 321. The limiting block 213 slides along the convex block 332, and the clamping block 214 slides along the top of the blocking block 334. After sliding to an appropriate position, rotate the screw rod 34 in the reverse direction to drive the guide rail 331 to reset, so that the convex blocks 332 on both sides of the guide rail 331 correspond one by one, and the blocking blocks 334 correspond one by one, so that the limiting block 213 is clamped in the limiting groove 333, and the clamping block 214 is clamped in the positioning groove 335, that is, the insulator string 2 can be doubly limited in the horizontal direction.

[0030] Look back Figure 2 , a locking plate 216 is fixedly connected to the sliding rod 212 below the clamping block 214. The locking plate 216 is used to abut against the bottom of the two guiding plates 33. A fixing sleeve 217 is fixedly connected to the bottom of the locking plate 216. Locking holes 218 are symmetrically formed on the fixing sleeve 217. A round hole 219 is formed in the sliding rod 212 at the bottom of the locking plate 216. After a bolt passes through the round hole 219 and the locking hole 218, it is threadedly connected with a nut, so that the fixing sleeve 217 and the sliding rod 212 can be fixed, and at the same time, the locking plate 216 abuts against the bottom of the guiding plate 33 to position the insulator string 2 vertically.

[0031] Among them, positioning holes 322 are provided on two symmetric sides of the installation box 32. Fixed plates 2111 are fixedly connected to both ends of the sliding plate 211. Fixing holes 2112 are provided on the fixed plates 2111. After a bolt passes through the positioning hole 322 and the fixing hole 2112 and is threadedly connected with a nut, the sliding plate 211 can be fixed to the installation box 32, thereby realizing the fixation of the insulator string 2.

[0032] An unloading port 323 is provided at the end of the installation box 32 far from the positioning frame. The diameter of the unloading port 323 is larger than the size of the sliding plate 211. The unloading port 323 communicates with the chute 321. The damaged insulator string 2 can be slid in the direction of the unloading port 323, so that the sliding plate 211 exits from the unloading port 323, and thus the damaged insulator string 2 can be removed.

[0033] The implementation principle of a tower facilitating the replacement of the insulator string 2 in the embodiment of the present application is as follows: when the insulator string 2 is damaged, remove the bolts on the sliding plate 211 and the installation box 32, remove the bolts on the locking sleeve, slide the locking sleeve and the locking plate 216 downward, and then the connecting piece 21 can be pushed upward, so that the limiting block 213 disengages from the limiting groove 333, and the blocking block 334 disengages from the positioning groove 335. Push the connecting piece 21 upward, so that the connecting piece 21 slides toward the unloading port 323 and drops from the unloading port 323, thereby causing the entire insulator string 2 to drop from the tower body 1.

[0034] When installing a new insulator string 2, first install the connecting piece 21 in the installation box 32, so that the sliding rod 212 passes through the chute 321. Bolt-fix the first insulator element 22 to the bottom of the connecting piece 21, and make the support rod 314 abut and support on both sides of the mounting post 221 of the bottom insulator element 22. The support rod 314 fixes the mounting post 221 to prevent the mounting post 221 from shaking. Insert the mounting post 221 into the card slot 223 of the connection head 222 of the next insulator element 22, and then snap the locking ring 225 into the card slot 223, and the installation groove and the installation block can be connected and fixed.

[0035] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A steel tower facilitating the replacement of an insulator string (2), comprising a steel tower body (1), wherein the insulator string (2) is detachably connected to the steel tower body (1), and is characterized in that: An auxiliary installation device (3) is detachably connected to the steel tower body (1); the auxiliary installation device (3) includes an installation box (32) connected to the steel tower body (1) and an auxiliary installation frame (31) for assembling the insulator string (2). The installation box (32) is fixedly connected to the steel tower body (1), and a chute (321) is formed in the installation box (32). The insulator string (2) includes a connecting member (21) and a plurality of insulator elements (22), and the adjacent insulator elements (22) are detachably connected end to end. The connecting member (21) is slidably connected in the chute (321); The auxiliary installation frame (31) includes a guiding frame (311), and a positioning rod (312) is slidably connected to the guiding frame (311). Both ends of the positioning rod (312) are fixedly connected with the positioning rod (312). A sliding sleeve (313) is slidably connected to both sides of the guiding frame (311) in the length direction, and a bolt is threadedly connected to the sliding sleeve (313); Two support rods (314) are slidably connected to the positioning rod (312). One end of each support rod (314) is fixedly connected with a guiding sleeve (315). The guiding sleeve (315) is slidably connected to the positioning rod (312), and a bolt is threadedly connected to the guiding sleeve (315). The support rods (314) are used for abutting and supporting the bottommost insulator element (22) to prevent the insulator element (22) from shaking under the action of wind force.

2. The iron tower for facilitating the replacement of the insulator string (2) according to claim 1, wherein: One end of the guiding frame (311) is rotatably connected to the steel tower body (1), and the other end is arranged as a free end.

3. The iron tower for facilitating the replacement of the insulator string (2) according to claim 1, characterized in that: An installation column (221) is fixedly connected to the bottom of the insulator element (22), and a limiting column is fixedly connected to the end of the installation column (221). A connecting head (222) is fixedly connected to the top of the insulator element (22). A clamping groove (223) for accommodating the limiting column is formed in the connecting head (222). A notch groove (224) is formed in the connecting head (222), and the notch groove (224) is used for making way for the installation column (221). A locking ring (225) is inserted into the clamping groove (223), and the locking ring (225) is used for being inserted into the clamping groove (223).

4. A steel tower facilitating the replacement of an insulator string (2) according to claim 1, characterized in that: The connecting member (21) includes a sliding plate (211). A sliding rod (212) is fixedly connected to the bottom of the sliding plate (211). The sliding rod (212) is slidably connected within a sliding groove (321). A limiting block (213) is fixedly connected to the outside of the sliding rod (212). A plurality of clamping blocks (214) are fixedly connected to the bottom of the limiting block (213). Two stepped grooves (215) are formed between the limiting block (213) and the clamping blocks (214). Two guiding plates (33) are fixedly connected to the bottom of the mounting box (32). The guiding plates (33) are located on both sides of the sliding groove (321). A guide rail (331) is slidably connected to the top of the guiding plate (33). A plurality of protruding blocks (332) are symmetrically formed at the top of the guide rail (331). A limiting groove (333) is formed between adjacent protruding blocks (332) for the limiting block (213) to be inserted into. A plurality of blocking blocks (334) are fixedly connected to the guide rail (331) below the protruding blocks (332). A positioning groove (335) is formed between adjacent blocking blocks (334) for the clamping blocks (214) to be inserted into.

5. A steel tower facilitating the replacement of an insulator string (2) according to claim 4, characterized in that: One end of the guide rail (331) is rotatably connected to a screw rod (34). A positioning rod (312) is fixedly connected to the bottom of the mounting box (32). The screw rod (34) is threadedly connected to the positioning rod (312).

6. The iron tower for facilitating the replacement of an insulator string (2) according to claim 4, wherein: A locking plate (216) is fixedly connected to the sliding rod (212) below the clamping blocks (214). The locking plate (216) is used to abut against the bottoms of the two guiding plates (33). A fixing sleeve (217) is fixedly connected to the bottom of the locking plate (216). Locking holes (218) are symmetrically formed on the fixing sleeve (217). A round hole (219) is formed in the sliding rod (212) at the bottom of the locking plate (216). After a bolt passes through the round hole (219) and the locking holes (218), it is threadedly connected to a nut.

7. A steel tower facilitating the replacement of the insulator string (2) according to claim 1, characterized in that: Positioning holes (322) are formed on both symmetric sides of the mounting box (32). Fixing plates (2111) are fixedly connected to both ends of the sliding plate (211). Fixing holes (2112) are formed in the fixing plates (2111). After a bolt passes through the positioning holes (322) and the fixing holes (2112), it is threadedly connected to a bolt.

8. A steel tower facilitating the replacement of an insulator string (2) according to claim 1, characterized in that: A material discharging port (323) is formed at the end of the mounting box (32) away from the positioning frame. The diameter of the material discharging port (323) is larger than the size of the sliding plate (211). The material discharging port (323) is communicated with the sliding groove (321) so that the sliding plate (211) can slide into the material discharging port (323) and fall from the mounting box (32).

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