A tension cross-arm iron accessory for power towers

Abstract

The present invention discloses a tension-resistant cross-arm iron accessory for an electric power tower, which relates to the technical field of electric power equipment. A cross-arm adjustment component is installed on the side rod, a transmission rod is symmetrically rotated and installed on the mounting plate, a rotating block is rotatably installed inside the rotating hole, and the opposite bottom ends of the two horizontal screw rods are respectively rotated and embedded in the middle of the two sides of the support block. The output shaft end of the adjustment motor passes through the support block and is connected to the vertical screw rod. A cam-shaped frame is welded on the outside of the internal threaded tube. When the temperature rises and the cables between the electric power towers sag more, the present invention drives the middle tube to move upward. The height of the middle tube exceeds that of the end tube, so that the sag amplitude of the cables between the electric power towers is reduced, the shaking amplitude of the cables is also smaller, the probability of the cables being damaged by shaking is reduced, and the safety is better. When the temperature drops, the cable between the two end tubes is reset, and becomes straight from curved, thereby increasing the distance between the two electric power towers to prevent the low-temperature cables from shrinking excessively and breaking, so that the cables have better environmental adaptability.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power equipment, in particular to a tension cross-arm iron accessory for an electric power tower. Background Art

[0002] Crossarms are the primary load-bearing structure of power towers, and the quality of their installation is directly related to the safety of transmission lines. According to design requirements, the crossarms are installed on the tower foot, adjusted to align with the foot, and then welded. Patent application number 202021473562.5 mentions a "bird-proof crossarm for power towers." This device uses curved plates to prevent birds from defecating and nesting on the tower. Left and right clamps facilitate the securement of the curved plates to the tower crossbeams, demonstrating stability, efficiency, and effective ground film protection.

[0003] However, the cross-arms of the above-mentioned power towers have fixed cables. As the cables expand and contract due to temperature, their lengths change at different temperatures. To prevent the cables from shrinking and breaking at low temperatures, a certain length is reserved. In the summer, when temperatures are high, the cables sag more, and when wind blows, they sway more, which can easily loosen the connections and cause safety problems. Summary of the Invention

[0004] The present invention provides a tension-resistant cross-arm iron accessory for an electric power tower, which can effectively solve the problem of fixing the position of the cross-arm fixed cable proposed in the above-mentioned background technology. Since the cable will expand and contract due to the influence of temperature, the length will change at different temperatures. In order to prevent the cable from shrinking and breaking at low temperatures, a certain length will be reserved. When the temperature is high in summer, the cable sags more and shakes more when the wind blows, which can easily cause the connection to loosen and lead to safety problems.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a tension cross-arm iron accessory for an electric power tower, comprising an electric power tower, side rods uniformly welded inside the electric power tower, a cross-arm adjustment assembly mounted on the side rods, and the cross-arm adjustment assembly comprising a mounting plate;

[0006] A mounting plate is installed on one side of the side rod, and a transmission rod is symmetrically rotatably installed on the mounting plate. A rotation hole is opened at one end of the transmission rod away from the mounting plate, and a rotating block is rotatably installed inside the rotation hole. A horizontal screw rod is connected to the middle of the rotating block through a screw hole, and the opposite bottom ends of the two horizontal screw rods are respectively rotatably embedded in the middle of both sides of the support block;

[0007] An adjusting motor is installed on the top surface of the support block, and the output shaft end of the adjusting motor passes through the support block and is connected to the vertical screw rod. The bottom end of the vertical screw rod is connected to an internal threaded tube through a thread. A cam is welded to the outside of the internal threaded tube. The bottom end of the cam is welded to a middle tube. Movable support rollers are symmetrically installed inside the middle tube.

[0008] Rotating guide plates are symmetrically connected on both sides of the middle tube, and a guide block is slidably sleeved on one end of the rotating guide plate. The two opposite guide blocks on the same side are respectively rotatably connected to the two sides of the end tube. Fixed support rollers are symmetrically installed inside the end tube, and one end of the end tube is connected to the bottom end of the transmission rod through an insulating rod.

[0009] According to the above technical solution, a rotating ring is fixedly sleeved on one end of the horizontal screw rod, and a rotating handle is symmetrically welded on the outer side of the rotating ring.

[0010] According to the above technical solution, the bottom end of the vertical screw rod is movably connected to the top surface of the cam-shaped frame with a rubber sealing tube, the bottom end of the rubber sealing tube is evenly provided with oil leakage holes, an outer sealing tube is bonded to the outside of the rubber sealing tube, an annular oil-soaked sponge is placed between the outer sealing tube and the rubber sealing tube, and the top end of the outer sealing tube is covered with a replacement cover.

[0011] According to the above technical solution, an anti-slip pad is embedded in the top end of the end tube, and arc-shaped spring sheets are installed at the four corners of the top end of the end tube near the anti-slip pad. The bottom ends of the two arc-shaped spring sheets on the same side are welded to the two ends of the top sleeve respectively, and an upper pressure roller is symmetrically installed inside the top sleeve, and an electric push rod is installed in the middle of the bottom surface of the end tube. The protruding end of the electric push rod passes through the end tube and is connected to the bottom sleeve, and a lower pressure roller is symmetrically installed inside the bottom sleeve.

[0012] According to the above technical solution, the transmission rod is sleeved with a protective tube at the outside of the rotating block, folding curtains are bonded on both sides of the protective tube, a closed hole is opened at the folding curtain corresponding to the horizontal screw rod, the top of the protective tube is inlaid with a top cover, and the bottom surface of the top cover is inlaid with an oil-soaked sponge block.

[0013] According to the above technical solution, the output ends of the regulating motor and the electric push rod are electrically connected to the output end of the external power supply respectively, and the outer sides of the regulating motor and the electric push rod are both covered with insulating sheaths.

[0014] According to the above technical solution, the longitudinal sections of the middle tube and the end tubes are of the same shape and size, and the two end tubes are symmetrically distributed on both sides of the middle tube.

[0015] According to the above technical solution, the mounting plate is installed with an anti-sway protection component, and the anti-sway protection component includes a mounting slot;

[0016] The mounting plate is provided with a mounting slot at a position corresponding to the side rod, a support plate is welded to one side of the side rod, a clamping column is evenly welded to the top surface of the support plate, a buffer rubber strip is clamped to the top surface of the support plate, a clamping hole is provided at the top surface of the buffer rubber strip corresponding to the clamping column, a protective sleeve is bonded to the side of the mounting slot away from the buffer rubber strip, a buffer airbag is embedded in the protective sleeve, upper screws are evenly installed on the top surface of the mounting plate, and side screws are symmetrically installed through the sides of the mounting plate;

[0017] The bottom end of the mounting plate is symmetrically welded with an arc-shaped guide rod, and the transmission rod is welded with a buffer tube passing through the arc-shaped guide rod. The top surface of the buffer tube is bonded with a buffer inflation tube, and the bottom end of the buffer inflation tube is bonded with a ball seat. The bottom end of the ball seat is rotatably embedded with a rolling ball, and the bottom end of the transmission rod is provided with an arc-shaped slot corresponding to the arc-shaped guide rod.

[0018] According to the above technical solution, a rolling groove is opened on the top surface of the arc-shaped guide rod, the bottom end of the rolling ball contacts the inner bottom surface of the rolling groove, and the sum of the widths of the buffer rubber strip, protective sleeve and side rod is equal to the width of the mounting slot.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. A cross-arm adjustment component is provided. According to the ambient temperature during installation and the type of cable, the handle outside the rotating circle is rotated to drive the horizontal screw to rotate, pushing the rotating block to move along the horizontal screw. At the same time, the rotating block also rotates in the rotating hole, changing the angle between the two transmission rods, driving the end tubes on both sides of the middle tube away from each other, thereby changing the rotation state of the cable support to prevent the cable from breaking due to excessive bending angle at the support position.

[0021] During installation, the middle tube and the end tube are at the same height to ensure that the arc of the cable sag between the power towers is within the specified range. If the temperature rises, the cable sags more between the power towers, and the adjusting motor is started. The adjusting motor drives the vertical screw to rotate, driving the middle tube upward. The height of the middle tube exceeds the end tube, and the middle part of the cable between the two end tubes is raised and bent, which changes the cable length between the two power towers, so that the sag of the cable between the power towers is reduced. When blown by the wind, the cable will also sway less, reducing the chance of cable damage due to shaking, and improving safety. When the temperature drops, the cable between the two end tubes is reset, and becomes straight from curved, increasing the distance between the two power towers to prevent the low-temperature cable from shrinking excessively and breaking. Different response methods are used in low and high temperature environments to make the cable more adaptable to the environment.

[0022] 2. An anti-sway protection component is provided. After the cable is installed, if the cable shakes due to wind, the arc-shaped guide rod is clamped in the arc-shaped card slot to support the transmission rod to prevent the transmission rod from being bent by the cable. When the transmission rod shakes, the rolling ball in the rolling groove will push the ball seat to squeeze the rubber buffer inflatable tube to buffer and reduce vibration. When the vibration is transmitted to the mounting plate, the buffer air bag and buffer rubber strip in the mounting card slot will deform to absorb the vibration caused by the shaking, reduce the impact force at the connection between the side rod and the mounting plate, protect the connection between the cable and the power tower, and reduce the chance of damage.

[0023] In summary, the cross-arm adjustment component adjusts the length of the cable between adjacent power towers according to the temperature, preventing the cables between adjacent power towers from sagging excessively and causing excessive shaking. At the same time, it also reduces the amplitude of vibration, which is more conducive to the anti-sway protection component to absorb vibration. The two components work at the same time to further reduce the vibration, thereby reducing damage to the connection between the cable and the power tower, and improving the safety of electricity use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0025] In the attached figure:

[0026] Figure 1 It is a structural schematic diagram of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the cross arm adjustment assembly of the present invention;

[0028] Figure 3 Schematic diagram of the installation structure of the shaped frame of the present invention;

[0029] Figure 4 This invention Figure 3 Schematic diagram of the A region structure;

[0030] Figure 5 This is a schematic diagram of the installation structure of the lower pressure roller of the present invention;

[0031] Figure 6 This is a schematic diagram of the installation structure of the folding curtain of the present invention;

[0032] Figure 7 It is a schematic structural diagram of the anti-sway protection assembly of the present invention;

[0033] Figure 8 This is a schematic diagram of the installation structure of the buffer rubber strip of the present invention;

[0034] Figure 9 This is a schematic diagram of the installation structure of the rolling ball of the present invention;

[0035] Numbers in the figure: 1, power tower; 2, side pole;

[0036] 3. Crossarm adjustment assembly; 301. Mounting plate; 302. Transmission rod; 303. Rotary hole; 304. Rotating block; 305. Horizontal screw; 306. Rotating circle; 307. Rotating handle; 308. Support block; 309. Adjustment motor; 310. Vertical screw; 311. Internally threaded pipe; 312. Nipple; 313. Middle pipe; 314. Movable support roller; 315. Rotating guide plate; 316. Guide block; 317. End pipe; 318. Fixed support Roller; 319, rubber sealing tube; 320, oil leakage hole; 321, outer sealing tube; 322, annular oil-soaked sponge; 323, replacement cover; 324, anti-slip pad; 325, arc-shaped spring sheet; 326, top cover; 327, upper pressure roller; 328, electric push rod; 329, bottom cover; 330, lower pressure roller; 331, protective tube; 332, folding curtain; 333, sealing hole; 334, top cover; 335, oil-soaked sponge; 336, insulating rod;

[0037] 4. Anti-sway protection assembly; 401. Mounting slot; 402. Support plate; 403. Clamping column; 404. Buffer rubber strip; 405. Clamping hole; 406. Protective sleeve; 407. Buffer airbag; 408. Upper screw; 409. Side screw; 410. Arc guide rod; 411. Rolling groove; 412. Buffer tube; 413. Buffer inflation tube; 414. Ball seat; 415. Rolling ball; 416. Arc slot. DETAILED DESCRIPTION

[0038] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0039] Example: Figure 1-9As shown, the present invention provides a technical solution for a tension cross-arm iron accessory for an electric power tower, comprising an electric power tower 1, wherein side rods 2 are uniformly welded inside the electric power tower 1, and a cross-arm adjustment assembly 3 is installed on the side rods 2. The cross-arm adjustment assembly 3 includes a mounting plate 301, a transmission rod 302, a rotating hole 303, a rotating block 304, a horizontal screw rod 305, a rotating circle 306, a rotating handle 307, a support block 308, an adjusting motor 309, a vertical screw rod 310, an internal threaded tube 311, a cam frame 312, a middle tube 313, and a movable support. Support roller 314, rotating guide plate 315, guide block 316, end tube 317, fixed support roller 318, rubber sealing tube 319, oil leakage hole 320, outer sealing tube 321, annular oil-soaked sponge 322, replacement cover 323, anti-slip pad 324, arc-shaped spring sheet 325, top cover 326, upper pressure roller 327, electric push rod 328, bottom cover 329, lower pressure roller 330, protective tube 331, folding curtain 332, closing hole 333, top cover 334, oil-soaked sponge block 335 and insulating rod 336;

[0040] A mounting plate 301 is installed on one side of the side rod 2, and a transmission rod 302 is symmetrically rotated and installed on the mounting plate 301. A rotating hole 303 is opened at the end of the transmission rod 302 away from the mounting plate 301, and a rotating block 304 is rotatably installed inside the rotating hole 303. A horizontal screw rod 305 is connected to the middle of the rotating block 304 through a screw hole. A rotating ring 306 is fixedly sleeved on one end of the horizontal screw rod 305. A rotating handle 307 is symmetrically welded on the outside of the rotating ring 306 to facilitate rotating the horizontal screw rod 305 for adjustment. The opposite bottom ends of the two horizontal screw rods 305 are rotatably embedded in the middle of both sides of the support block 308 respectively;

[0041] An adjustment motor 309 is mounted on the top surface of the support block 308. The output shaft of the adjustment motor 309 passes through the support block 308 and is connected to a vertical screw rod 310. The bottom end of the vertical screw rod 310 is threadedly connected to an internally threaded tube 311. A cam 312 is welded to the outside of the internally threaded tube 311. The bottom end of the cam 312 is welded to a middle tube 313. Movable support rollers 314 are symmetrically mounted inside the middle tube 313.

[0042] The middle tube 313 is symmetrically connected to a rotating guide plate 315 on both sides. A guide block 316 is slidably sleeved on one end of the rotating guide plate 315. The two opposite guide blocks 316 on the same side are respectively rotatably connected to the two sides of the end tube 317. The longitudinal section of the middle tube 313 and the longitudinal section of the end tube 317 are of the same shape and size. The two end tubes 317 are symmetrically distributed on both sides of the middle tube 313 to keep the middle tube 313 and the end tube 317 in the same straight line. A fixed support roller 318 is symmetrically installed inside the end tube 317. One end of the end tube 317 is connected to the bottom end of the transmission rod 302 through an insulating rod 336. The vertical screw rod The bottom end of 310 is movably sleeved with a rubber sealing tube 319 at the top surface of the shaped frame 312. The bottom end of the rubber sealing tube 319 is evenly provided with oil leakage holes 320. An outer sealing tube 321 is bonded to the outside of the rubber sealing tube 319. An annular oil-soaked sponge 322 is placed between the outer sealing tube 321 and the rubber sealing tube 319. The top of the outer sealing tube 321 is covered with a replacement cover 323 to protect the movable position and prevent dust and water from entering the bottom end of the vertical screw rod 310 and causing rust and blockage, so as to facilitate the adjustment of subsequent operations. The top end of the end tube 317 is inlaid with an anti-slip pad 324. The top end of the end tube 317 is close to the anti-slip pad The four corners of block 324 are all equipped with arc-shaped spring pieces 325. The bottom ends of the two arc-shaped spring pieces 325 on the same side are welded to the two ends of the top sleeve 326 respectively. The top sleeve 326 is internally equipped with an upper pressure roller 327 for symmetrical rotation. An electric push rod 328 is installed in the middle of the bottom surface of the end tube 317. The output ends of the regulating motor 309 and the electric push rod 328 are respectively electrically connected to the output end of the external power supply. The outer sides of the regulating motor 309 and the electric push rod 328 are both covered with insulating sheaths to protect the regulating motor 309 and the electric push rod 328 and ensure their normal operation. The protruding end of the electric push rod 328 passes through the end tube 317 and is connected There is a bottom sleeve 329, and a lower pressure roller 330 is installed symmetrically inside the bottom sleeve 329 to fix the cable after adjustment and prevent the cable from excessive shaking during use. The transmission rod 302 is sleeved with a protective tube 331 on the outside of the rotating block 304, and folding curtains 332 are glued on both sides of the protective tube 331. The folding curtain 332 is provided with a closed hole 333 corresponding to the horizontal screw rod 305. The top of the protective tube 331 is inlaid with a top cover 334, and the bottom of the top cover 334 is inlaid with an oil-soaked sponge block 335 to prevent dust and water from entering the outside of the rotating block 304 and affecting the adjustment operation.

[0043] The anti-sway protection assembly 4 is installed on the mounting plate 301. The anti-sway protection assembly 4 includes a mounting slot 401, a support plate 402, a clamping column 403, a buffer rubber strip 404, a clamping hole 405, a protective sleeve 406, a buffer airbag 407, an upper screw 408, a side screw 409, an arc-shaped guide rod 410, a rolling groove 411, a buffer tube 412, a buffer inflation tube 413, a ball seat 414, a rolling ball 415, and an arc-shaped slot 416.

[0044] The mounting plate 301 is provided with a mounting slot 401 corresponding to the side rod 2, a support plate 402 is welded to one side of the side rod 2, and a clamping column 403 is evenly welded to the top surface of the support plate 402. A buffer rubber strip 404 is clamped to the top surface of the support plate 402, and a clamping hole 405 is provided on the top surface of the buffer rubber strip 404 corresponding to the clamping column 403. A protective sleeve 406 is adhered to the side of the mounting slot 401 away from the buffer rubber strip 404, and a buffer airbag 407 is embedded in the protective sleeve 406. Upper screws 408 are evenly installed on the top surface of the mounting plate 301, and side screws 409 are symmetrically installed through the sides of the mounting plate 301;

[0045] An arc-shaped guide rod 410 is symmetrically welded to the bottom end of the mounting plate 301, and a buffer tube 412 is welded through the transmission rod 302 at the arc-shaped guide rod 410. A buffer inflation tube 413 is bonded to the top surface of the buffer tube 412, and a ball seat 414 is bonded to the bottom end of the buffer inflation tube 413. A rolling ball 415 is rotatably embedded in the bottom end of the ball seat 414. A rolling groove 411 is provided on the top surface of the arc-shaped guide rod 410, and the bottom end of the rolling ball 415 contacts the bottom surface of the rolling groove 411. The sum of the widths of the buffer rubber strip 404, the protective sleeve 406 and the side rod 2 is equal to the width of the mounting slot 401, which facilitates the rolling of the ball 415 in the rolling groove 411, reduces the gap in the mounting slot 401, and improves the vibration reduction effect. An arc slot 416 is provided at the bottom end of the transmission rod 302 corresponding to the arc-shaped guide rod 410.

[0046] The working principle and use process of the present invention are as follows: when it is necessary to install the cross arm, the buffer airbag 407 is embedded in the protective sleeve 406 and then bonded to one side of the installation slot 401. The cable passes through the end tube 317 and the middle tube 313 in sequence. The movable support roller 314 and the fixed support roller 318 guide and clamp the cable. The end tube 317 and the middle tube 313 are hoisted and lifted to the position of the side rod 2 at the same time. The buffer rubber strip 404 is clamped and installed at the clamping column 403 of the support plate 402. The installation slot 401 is fixed. Attach it to the side rod 2, install the upper screw 408 and the side screw 409 in sequence to fix the mounting plate 301, place the annular oil-soaked sponge 322 between the rubber sealing tube 319 and the outer sealing tube 321 to prevent dust from entering the vertical screw 310 and the internal threaded tube 311 while providing lubrication, and embed the oil-soaked sponge block 335 on the bottom surface of the top cover 334 and attach it to the top of the protective tube 331 to prevent dust from entering the rotary hole 303 while providing lubrication to facilitate subsequent adjustment operations;

[0047] According to the ambient temperature during installation, the rotating handle 307 outside the rotating circle 306 is rotated to drive the horizontal screw rod 305 to rotate, pushing the rotating block 304 to move along the horizontal screw rod 305. At the same time, the rotating block 304 also rotates in the rotating hole 303, driving the transmission rod 302 to rotate, changing the angle between the two transmission rods 302. During the above process, the folding curtain 332 always blocks the rotating hole 303, and the buffer tube 412 slides along the top surface of the arc guide rod 410, driving the end tubes 317 on both sides of the middle tube 313. The guide plate 315 is in a horizontal state and slides inside the guide block 316, thereby changing the rotation state of the cable support to prevent the cable from bending too much at the support position. Then the electric push rod 328 is started, and the lower pressure roller 330 of the bottom sleeve 329 is lifted, squeezing the cable between the upper pressure roller 327 and the lower pressure roller 330 until the arc-shaped spring piece 325 is deformed and the upper pressure roller 327 squeezes the anti-slip pad 324, so that the upper pressure roller 327 cannot rotate freely, thereby fixing the cable in the end tube 317.

[0048] During installation, the middle tube 313 and the end tube 317 are at the same height to ensure that the arc of the cable sagging between the power towers 1 is within the specified range. If the temperature rises and the cable sagging between the power towers 1 is greater, the electric push rod 328 is started to retract, the upper pressure roller 327 no longer squeezes the anti-slip pad 324, and the cable between the upper pressure roller 327 and the lower pressure roller 330 can slide freely. The adjustment motor 309 is started, and the adjustment motor 309 drives the vertical screw rod 310 to rotate. The vertical screw rod 310 pulls the internal threaded tube 311 and the cam frame 312 upward, thereby driving the middle tube 313 to move upward. The height of the middle tube 313 exceeds that of the end tube 317. The rotating guide plate 315 tilts and drives the guide block 316 to rotate. Even if the middle tube 313 rises, it is still in the same plane as the end tube 317. The middle part of the cable between the two end tubes 317 is convex and curved, thereby changing the length of the cable between the two power towers 1, so that the sag of the cable between the power towers 1 is reduced. When blown by the wind, the swaying amplitude of the cable is also smaller, reducing the chance of damage to the cable due to swaying, and improving safety. When the temperature drops, the cable between the two end tubes 317 is reset, increasing the distance between the two power towers 1 to prevent the low-temperature cable from excessive shrinkage and breakage, making the cable more adaptable to the environment.

[0049] After the cable is installed, when the cable shakes due to wind, the arc guide rod 410 is clamped in the arc groove 416 to support the transmission rod 302, preventing the transmission rod 302 from being bent by the cable. When the transmission rod 302 shakes, the rolling ball 415 in the rolling groove 411 pushes the ball seat 414 to squeeze the rubber buffer inflation tube 413 to buffer and reduce vibration. When the vibration is transmitted to the mounting plate 301, the buffer air bag 407 and the buffer rubber strip 404 in the mounting groove 401 will deform to absorb the vibration caused by the shaking, reduce the impact force at the connection between the side rod 2 and the mounting plate 301, protect the connection between the cable and the power tower 1, and reduce the chance of damage.

[0050] The cross-arm adjustment component 3 adjusts the length of the cable between adjacent power towers 1 according to the temperature to prevent the cables between adjacent power towers 1 from sagging excessively and causing excessive shaking. At the same time, it also reduces the amplitude of vibration, which is more conducive to the anti-sway protection component 4 to absorb vibration. The two components work at the same time to further reduce the vibration, thereby reducing the damage to the connection between the cable and the power tower 1 and improving the safety of electricity use.

[0051] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A tension cross-arm iron accessory for an electric power tower, comprising an electric power tower (1), characterized in that: Side rods (2) are uniformly welded inside the power iron tower (1), and a cross-arm adjustment assembly (3) is installed on the side rods (2), and the cross-arm adjustment assembly (3) includes a mounting plate (301); A mounting plate (301) is mounted on one side of the side rod (2), a transmission rod (302) is symmetrically mounted on the mounting plate (301), a rotation hole (303) is provided at one end of the transmission rod (302) away from the mounting plate (301), a rotation block (304) is rotatably mounted inside the rotation hole (303), a horizontal screw rod (305) is connected to the middle of the rotation block (304) through a screw hole, and the opposite bottom ends of the two horizontal screw rods (305) are respectively rotatably embedded in the middle of both sides of the support block (308); An adjusting motor (309) is installed on the top surface of the support block (308), an output shaft end of the adjusting motor (309) passes through the support block (308) and is connected to a vertical screw rod (310), a bottom end of the vertical screw rod (310) is connected to an internal threaded tube (311) through a thread, a cam frame (312) is welded to the outside of the internal threaded tube (311), a middle tube (313) is welded to the bottom end of the cam frame (312), and a movable supporting roller (314) is symmetrically installed inside the middle tube (313); Both sides of the middle tube (313) are symmetrically connected to rotating guide plates (315), one end of the rotating guide plate (315) is slidably sleeved with a guide block (316), and two opposite guide blocks (316) located on the same side are respectively rotatably connected to the two sides of the end tube (317), and a fixed support roller (318) is symmetrically installed inside the end tube (317). One end of the end tube (317) is connected to the bottom end of the transmission rod (302) through an insulating rod (336).

2. A tension cross-arm iron accessory for a power tower according to claim 1, characterized in that: One end of the horizontal screw rod (305) is fixedly sleeved with a rotating ring (306), and a rotating handle (307) is symmetrically welded on the outside of the rotating ring (306).

3. The tension cross-arm iron accessory for a power tower according to claim 1, characterized in that: The bottom end of the vertical screw rod (310) is movably sleeved on the top surface of the cam frame (312) with a rubber sealing tube (319). The bottom end of the rubber sealing tube (319) is evenly provided with oil leakage holes (320). An outer sealing tube (321) is bonded to the outer side of the rubber sealing tube (319). An annular oil-soaked sponge (322) is placed between the outer sealing tube (321) and the rubber sealing tube (319). The top end of the outer sealing tube (321) is covered with a replacement cover (323).

4. The tension cross-arm iron accessory for a power tower according to claim 1, characterized in that: The top end of the end tube (317) is inlaid with an anti-skid pad (324), and arc-shaped spring sheets (325) are installed at the four corners of the top end of the end tube (317) near the anti-skid pad (324). The bottom ends of the two arc-shaped spring sheets (325) on the same side are respectively welded to the two ends of the top sleeve (326), and an upper pressure roller (327) is symmetrically rotated inside the top sleeve (326). An electric push rod (328) is installed in the middle of the bottom surface of the end tube (317), and the protruding end of the electric push rod (328) passes through the end tube (317) and is connected to the bottom sleeve (329), and a lower pressure roller (330) is symmetrically rotated inside the bottom sleeve (329).

5. The tension cross-arm iron accessory for a power tower according to claim 1, characterized in that: The transmission rod (302) is sleeved with a protective tube (331) at the outer side of the rotating block (304), and folding curtains (332) are bonded to both sides of the protective tube (331). The folding curtain (332) is provided with a closed hole (333) at a position corresponding to the horizontal screw rod (305). The top end of the protective tube (331) is inlaid with a top cover (334), and the bottom surface of the top cover (334) is inlaid with an oil-soaked sponge block (335).

6. A tension cross-arm iron accessory for a power tower according to claim 4, characterized in that: The output ends of the regulating motor (309) and the electric push rod (328) are electrically connected to the output end of the external power supply, respectively. The outer sides of the regulating motor (309) and the electric push rod (328) are both sleeved with insulating sheaths.

7. The tension cross-arm iron accessory for a power tower according to claim 1, characterized in that: The longitudinal sections of the middle tube (313) and the end tubes (317) are of the same shape and size, and the two end tubes (317) are symmetrically distributed on both sides of the middle tube (313).

8. The tension cross-arm iron accessory for a power tower according to claim 1, characterized in that: The mounting plate (301) is mounted with an anti-sway protection component (4), and the anti-sway protection component (4) includes a mounting slot (401); The mounting plate (301) is provided with a mounting slot (401) corresponding to the side rod (2), a supporting plate (402) is welded to one side of the side rod (2), a clamping column (403) is evenly welded to the top surface of the supporting plate (402), a buffer rubber strip (404) is clamped to the top surface of the supporting plate (402), a clamping hole (405) is provided on the top surface of the buffer rubber strip (404) corresponding to the clamping column (403), a protective sleeve (406) is bonded to the side of the mounting slot (401) away from the buffer rubber strip (404), a buffer airbag (407) is embedded in the protective sleeve (406), an upper screw (408) is evenly installed on the top surface of the mounting plate (301), and a side screw (409) is symmetrically installed through the side of the mounting plate (301); The bottom end of the mounting plate (301) is symmetrically welded with an arc-shaped guide rod (410); the transmission rod (302) is welded with a buffer tube (412) passing through the arc-shaped guide rod (410); the top surface of the buffer tube (412) is bonded with a buffer inflation tube (413); the bottom end of the buffer inflation tube (413) is bonded with a ball seat (414); the bottom end of the ball seat (414) is rotatably embedded with a rolling ball (415); and the bottom end of the transmission rod (302) is provided with an arc-shaped slot (416) corresponding to the arc-shaped guide rod (410).

9. The tension cross-arm iron accessory for a power tower according to claim 8, characterized in that: A rolling groove (411) is formed on the top surface of the arc-shaped guide rod (410), and the bottom end of the rolling ball (415) contacts the inner bottom surface of the rolling groove (411). The sum of the widths of the buffer rubber strip (404), the protective sleeve (406) and the side rod (2) is equal to the width of the mounting slot (401).

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