Adjustable cross arm for electric steel pipe tower

Abstract

The utility model discloses an adjustable cross arm for electric power steel pipe tower relates to electric power steel pipe tower technical field, including first fixed cover, first fixed cover both sides are equipped with adjusting assembly, and first fixed cover bottom is equipped with support assembly, adjusting assembly includes the cross bar of being connected in first fixed cover both sides, and two groups cross bar surface all slidingly connected with mobile cover, mobile cover bottom both sides slidingly connected with T -block, the utility model discloses through pulling the U -shaped block of both sides, makes the axle to separate the card slot, removes the fixed between cross bar and mobile cover, then carries out the adjustment to cross bar, realizes the quick locking between cross bar and mobile cover through spring and axle, and the automatic embedding of axle and card slot avoids the complicated operation that traditional bolt needs to be frequently tightened, and relies on the elasticity to maintain the structure stability at the same time, and the cross arm displacement risk caused by bolt rust or loosening is avoided at the same time, effectively reduce the cross arm fracture or the accident probability of falling off.

Description

Technical Field

[0001] This utility model relates to the field of power steel pipe tower technology, specifically an adjustable crossarm for power steel pipe towers. Background Technology

[0002] Crossarms are often used on power steel pipe towers to support and suspend cables. The crossarms are made of steel or aluminum alloy, which can not only bear the weight of the conductors and natural loads such as wind and snow, but also evenly transfer external forces to the tower body, thus enhancing its anti-overturning ability.

[0003] An existing patent (publication number: CN222295883U) discloses an adjustable crossarm for power steel pipe towers. Through the cooperation of threaded holes, bolts, bearings and positioning plates, the device can be fixed after fine adjustment, preventing slippage during use and ensuring normal operation.

[0004] However, the above technical solution still has certain defects. The device adjusts the crossarm by matching the bolts with the threaded holes. However, the crossarm of the steel pipe tower is exposed to the outside world for a long time. Over time, the erosion of rainwater will cause the bolt surface to rust, resulting in thread jamming, increasing the difficulty of disassembly. At the same time, it may also cause the preload to gradually lose and the bolts to loosen, leading to structural connection failure. Therefore, an adjustable crossarm for power steel pipe towers is proposed. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide an adjustable crossarm for power steel pipe towers to solve the technical problems mentioned in the background.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an adjustable crossarm for power steel pipe towers, comprising a first fixed sleeve, adjusting components on both sides of the first fixed sleeve, and a supporting component at the bottom of the first fixed sleeve;

[0007] The adjusting assembly includes crossbars connected to both sides of the first fixed sleeve. Movable sleeves are slidably connected to the surfaces of both sets of crossbars. T-shaped blocks are slidably connected to both sides of the bottom end of each movable sleeve. A rope is fixed to one side of each set of T-shaped blocks, and a U-shaped block is fixed to the bottom end of each T-shaped block. A square plate is fixed to the end of the rope away from the T-shaped block. A groove for sliding the square plate is provided inside the movable sleeve. A retaining shaft is fixed to the end of the square plate away from the rope, and two sets of springs are provided on the side of the square plate away from the retaining shaft. Several sets of retaining grooves that match the retaining shaft are provided at the front and rear ends of the crossbars.

[0008] As a preferred technical solution, a limiting block is fixed at the top of the crossbar, and a limiting groove that matches the limiting block is opened on the inner wall of the movable sleeve.

[0009] As a preferred technical solution, the bottom end of the movable sleeve is provided with a T-shaped groove for the T-shaped block to slide, and the U-shaped block is attached to the side wall of the movable sleeve.

[0010] As a preferred technical solution, the surface of the rope is slidably connected to a guide shaft that changes its extension direction, and the guide shaft is fixed inside the groove.

[0011] As a preferred technical solution, the card slots are arranged in a horizontal array at both ends of the crossbar.

[0012] As a preferred technical solution, the support assembly includes a second fixed sleeve connected to the bottom end of the first fixed sleeve, support rods are fixed on both sides of the second fixed sleeve, connecting plates are installed on both sides of the support rods away from the second fixed sleeve, a spring telescopic rod is provided at the top of the connecting plate, a moving groove is opened at the bottom end of the movable sleeve, and the top of the spring telescopic rod abuts against the inside of the moving groove.

[0013] As a preferred technical solution, the end of the support rod away from the second fixing sleeve is fixed to the bottom of the crossbar.

[0014] In summary, the present invention has the following main advantages:

[0015] 1. This utility model allows the locking shaft to disengage from the slot by pulling the U-shaped blocks on both sides, thereby releasing the fixation between the crossbar and the moving sleeve. The crossbar is then adjusted, and the spring and locking shaft achieve quick locking between the crossbar and the moving sleeve. The automatic engagement of the locking shaft and the slot avoids the tedious operation of frequent tightening of traditional bolts. At the same time, the elasticity maintains the structural stability and avoids the risk of crossarm displacement caused by bolt corrosion or loosening, effectively reducing the probability of crossarm breakage or detachment.

[0016] 2. This utility model can effectively support the extended movable sleeve through the spring telescopic rod, which effectively enhances the crossarm's resistance to bending and wind vibration. At the same time, the support rod can further improve the stability of the crossarm. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall components of this utility model;

[0018] Figure 2 This is a schematic diagram of the crossbar of this utility model;

[0019] Figure 3 This is a schematic diagram of the slider of this utility model;

[0020] Figure 4 For the present utility model Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 This is a schematic diagram of the card shaft of this utility model;

[0022] Figure 6 This is a schematic diagram of the support component of this utility model.

[0023] In the diagram: 100, First fixing sleeve;

[0024] 200. Adjustment component; 210. Crossbar; 211. Limiting block; 220. Moving sleeve; 221. Limiting groove; 222. T-slot; 230. T-block; 240. U-block; 250. Rope; 251. Guide shaft; 260. Square plate; 261. Groove; 270. Spring; 280. Snap pin; 281. Snap groove;

[0025] 300, Support assembly; 310, Second fixing sleeve; 320, Support rod; 330, Connecting plate; 340, Spring telescopic rod; 341, Moving groove. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] The embodiments of this utility model will be described below based on its overall structure.

[0028] An adjustable crossarm for power steel pipe towers, such as Figure 1-6 As shown, it includes a first fixing sleeve 100, adjustment components 200 are provided on both sides of the first fixing sleeve 100, and a support component 300 is provided at the bottom of the first fixing sleeve 100.

[0029] The adjusting assembly 200 includes crossbars 210 connected to both sides of the first fixed sleeve 100. Movable sleeves 220 are slidably connected to the surfaces of both sets of crossbars 210. T-shaped blocks 230 are slidably connected to both sides of the bottom end of the movable sleeves 220. A rope 250 is fixed to one side of each set of T-shaped blocks 230, and a U-shaped block 240 is fixed to the bottom end of each T-shaped block 230. A square plate 260 is fixed to the end of the rope 250 away from the T-shaped block 230. A groove 261 for sliding the square plate 260 is provided inside the movable sleeve 220. A retaining shaft 280 is fixed to the end of the square plate 260 away from the rope 250, and two sets of springs 270 are provided on the side of the square plate 260 away from the retaining shaft 280. Several sets of slots 281 that match the retaining shaft 280 are provided at the front and rear ends of the crossbars 210.

[0030] When adjustment of the crossbar 210 is required, pulling the U-shaped blocks 240 on both sides causes the T-shaped blocks 230 to slide within the T-slots 222. This, in turn, causes the T-shaped blocks 230 to pull the rope 250, which in turn pulls the square plate 260, causing it to move synchronously. The square plate 260 then moves the retaining shaft 280 into the groove 261, compressing the spring 270 until the retaining shaft 280 disengages from the groove 281, releasing the connection between the crossbar 210 and the movable sleeve 220. Then, pulling the U-shaped blocks 240 again causes the movable sleeve 220 to slide on the crossbar 210, thus achieving adjustment of the crossbar. After adjustment, the U-shaped block 240 is released, and under the action of the spring 270, the square plate 260 drives the retaining shaft 280 to re-embed into the retaining groove 281, thus completing the fixation between the crossbar 210 and the moving sleeve 220. The spring 270 and the retaining shaft 280 achieve quick locking between the crossbar 210 and the moving sleeve 220. The automatic engagement of the retaining shaft 280 and the retaining groove 281 avoids the tedious operation of frequent tightening of traditional bolts. At the same time, the elasticity maintains the structural stability and avoids the risk of crossarm displacement caused by bolt corrosion or loosening, effectively reducing the probability of crossarm breakage or detachment.

[0031] Please refer to this carefully. Figure 2 and Figure 3 A limit block 211 is fixed at the top of the crossbar 210, a limit groove 221 that matches the limit block 211 is opened on the inner wall of the movable sleeve 220, a T-groove 222 for sliding of the T-shaped block 230 is opened at the bottom of the movable sleeve 220, and the U-shaped block 240 is attached to the side wall of the movable sleeve 220.

[0032] The cooperation between the limiting block 211 and the limiting groove 221 makes the movable sleeve 220 more stable when moving.

[0033] Please refer to this carefully. Figures 3 to 5 The surface of the cord 250 is slidably connected to a guide shaft 251 that changes its extension direction. The guide shaft 251 is fixed inside the groove 261. The slots 281 are arranged in a horizontal array at the front and rear ends of the crossbar 210.

[0034] The guide shaft 251 facilitates better movement of the rope 250, and the multiple sets of slots 281 can fix the moving sleeve 220 after adjustment.

[0035] Please refer to this carefully. Figure 1 and Figure 6The support assembly 300 includes a second fixed sleeve 310 connected to the bottom of the first fixed sleeve 100. Support rods 320 are fixed on both sides of the second fixed sleeve 310. Connecting plates 330 are installed on both sides of the support rods 320 away from the second fixed sleeve 310. A spring telescopic rod 340 is provided at the top of the connecting plate 330. A moving groove 341 is opened at the bottom of the movable sleeve 220. The top of the spring telescopic rod 340 abuts against the inside of the moving groove 341. The end of the support rod 320 away from the second fixed sleeve 310 is fixed to the bottom of the crossbar 210.

[0036] When the movable sleeve 220 moves, the spring telescopic rod 340 can effectively support the extended movable sleeve 220, which effectively enhances the crossarm's resistance to bending and wind vibration. At the same time, the support rod 320 can further improve the stability of the crossarm.

[0037] In use, by pulling the U-shaped blocks 240 on both sides, the locking shaft 280 is disengaged from the slot 281, releasing the fixation between the crossbar 210 and the movable sleeve 220. Then, the crossbar 210 is adjusted, and the crossbar 210 and the movable sleeve 220 are quickly locked together by the spring 270 and the locking shaft 280. The automatic engagement of the locking shaft 280 and the slot 281 avoids the tedious operation of frequent tightening of traditional bolts. At the same time, the elasticity maintains the structural stability and avoids the risk of crossarm displacement caused by bolt corrosion or loosening, effectively reducing the probability of crossarm breakage or detachment. When the movable sleeve 220 moves, the spring telescopic rod 340 can effectively support the extended movable sleeve 220, effectively enhancing the crossarm's resistance to bending and wind vibration. At the same time, the support rod 320 can further improve the stability of the crossarm. All parts not mentioned in this device are the same as or can be implemented using existing technology.

[0038] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. An adjustable crossarm for power steel pipe towers, comprising a first fixing sleeve (100), characterized in that: The first fixing sleeve (100) is provided with adjusting components (200) on both sides, and the first fixing sleeve (100) is provided with a supporting component (300) at the bottom end; The adjusting assembly (200) includes crossbars (210) connected to both sides of the first fixed sleeve (100). Movable sleeves (220) are slidably connected to the surfaces of both sets of crossbars (210). T-shaped blocks (230) are slidably connected to both sides of the bottom end of each movable sleeve (220). A rope (250) is fixed to one side of each set of T-shaped blocks (230), and a U-shaped block (240) is fixed to the bottom end of each T-shaped block (230). The rope (250) is located away from the T-shaped block. A square plate (260) is fixed to one end of the 230. The movable sleeve (220) has a groove (261) for sliding the square plate (260). A retaining pin (280) is fixed to one end of the square plate (260) away from the rope (250). Two sets of springs (270) are provided on the side of the square plate (260) away from the retaining pin (280). Several sets of slots (281) that match the retaining pin (280) are provided at the front and rear ends of the crossbar (210).

2. The adjustable crossarm for power steel pipe towers according to claim 1, characterized in that: The top of the crossbar (210) is fixed with a limiting block (211), and the inner wall of the movable sleeve (220) is provided with a limiting groove (221) that matches the limiting block (211).

3. The adjustable crossarm for power steel pipe towers according to claim 1, characterized in that: The bottom end of the movable sleeve (220) is provided with a T-shaped groove (222) for sliding of the T-shaped block (230), and the U-shaped block (240) is attached to the side wall of the movable sleeve (220).

4. The adjustable crossarm for power steel pipe towers according to claim 1, characterized in that: The surface of the cord (250) is slidably connected to a guide shaft (251) that changes its extension direction, and the guide shaft (251) is fixed inside the groove (261).

5. An adjustable crossarm for power steel pipe towers according to claim 1, characterized in that: The slots (281) are arranged in a horizontal array at the front and rear ends of the crossbar (210).

6. An adjustable crossarm for power steel pipe towers according to claim 1, characterized in that: The support assembly (300) includes a second fixed sleeve (310) connected to the bottom of the first fixed sleeve (100). Support rods (320) are fixed on both sides of the second fixed sleeve (310). Connecting plates (330) are installed on both sides of the support rods (320) away from the second fixed sleeve (310). A spring telescopic rod (340) is provided at the top of the connecting plate (330). A moving groove (341) is opened at the bottom of the moving sleeve (220). The top of the spring telescopic rod (340) abuts against the inside of the moving groove (341).

7. An adjustable crossarm for power steel pipe towers according to claim 6, characterized in that: The end of the support rod (320) away from the second fixing sleeve (310) is fixed to the bottom of the crossbar (210).

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