Wind-resistant and anti-galloping mechanism for power transmission line

Abstract

The utility model relates to the technical field of power transmission line protection devices, in particular to a wind-resistant and anti-galloping mechanism for a power transmission line, which comprises a plurality of groups of support frames which are rotatably connected through connecting shafts, a second connecting sleeve is rotatably connected to the right end of the inner side of each support frame, and a sleeve is rotatably mounted on each second connecting sleeve. A first clamping ring is fixedly installed on each connecting shaft, a cable is placed on the inner side of the second clamping ring and the inner side of the first clamping ring, then a bolt is arranged on the inner side of a nut in a penetrating mode, the nut is rotated to enable the bolt to tighten the second clamping ring and the first clamping ring, the nut is installed on the first clamping ring in a sliding mode, and the nut is installed on the second clamping ring in a rotating mode. A worker can directly fix the bolt through a tool without additionally installing a bolt and a nut, and the situation that the bolt is likely to slip out of the hand in the installation process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission line protection devices, and particularly relates to an anti-wind and anti-galloping mechanism for transmission lines. Background Technique

[0002] With the continuous expansion of the scale of power grid construction, disaster accidents of transmission lines under natural conditions occur frequently, and galloping is one of the more serious accidents. Galloping of transmission lines may cause consequences such as line flashover, tripping, loosening and falling of tower bolts, and even collapse in severe cases.

[0003] After a large amount of retrieval, it is found that the prior art publication number is CN 219739919 U, which discloses a conductor anti-galloping device for overhead transmission lines, and adopts a scheme of cooperating a pressing plate, a return spring and a hydraulic buffer to quickly eliminate the galloping force. The beneficial effect is that the pressing plate is clamped and limited by a positioning disk, so that the adjusting rod rotates on the inner wall of the adjusting sleeve, and rotating the adjusting rod will not drive the pressing plate to rotate, so that the adjusting rod moves outwards, and then screws are used to fix the fixed sleeve plate and the adjusting rod. When the weather conditions are extremely bad, due to the galloping of the line, the pressing plate is pressed, so that the pressing plate presses the return spring in the groove opened on the outer wall of the positioning disk, and then the return spring buffers the galloping force of the line, and then drives the hydraulic buffer, so that the pressing plate drives the hydraulic buffer to quickly eliminate the galloping force of the line. The pressing plate is semi-circular for convenient use on the inner wall of the positioning disk, achieving the effect of quickly eliminating the galloping of the line and improving the service life of the line when the weather conditions are extremely bad.

[0004] Therefore, based on the above retrieval and in combination with the existing ones, in the actual application process of the above scheme, when workers install the transmission line on the bayonet of the device, after the cable is clamped, bolts are required to fix the cable, and bolts and nuts need to be taken out of the tool kit. This series of actions may result in the situation that the bolts or nuts slip out of the hand. At this time, it is necessary to take them again from the tool kit, which causes inconvenience in the installation process. When the bolts slip out during high-altitude operation, it may pose a certain danger to the ground. For this reason, we propose an anti-wind and anti-galloping mechanism for transmission lines. Content of the Utility Model

[0005] The purpose of the utility model is to provide an anti-wind and anti-galloping mechanism for transmission lines to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: an anti-wind and anti-galloping mechanism for transmission lines, including a support frame. There are several groups of the support frames, and several groups of support frames are rotationally connected through a connecting shaft. The right end inside the support frame is rotationally connected with a second connecting sleeve. A sleeve is rotationally installed on the second connecting sleeve. First clamping rings are fixedly installed on the connecting shafts.

[0007] Furthermore, a driving gear is fixedly installed on the outer surface of the sleeve, a connecting block is sleeved on the outer surface of the sleeve, and a first connecting sleeve is rotatably installed at the left end inside the support frame.

[0008] Furthermore, a screw rod is fixedly installed at the right end of the first connecting sleeve, the sleeve is threadedly sleeved on the outer surface of the screw rod, a sliding groove is formed in the screw rod, and a strip-shaped gear is fixedly installed on the sliding groove.

[0009] Furthermore, a rotating bolt is inserted through the connecting block, a crown gear is fixedly installed at the rear end of the rotating bolt, the crown gear meshes with the driving gear, and a fixing block is fixedly installed at the front end of the connecting block.

[0010] Furthermore, connecting rods are slidably installed at both the upper and lower ends of the fixing block, sliding sleeves are rotatably installed inside the connecting rods, and insertion pins are slidably installed on the sliding sleeves.

[0011] Furthermore, a second snap ring is rotatably installed on the first snap ring, and a bolt is inserted through the first snap ring.

[0012] Compared with the prior art, the beneficial effects of the present utility model are at least as follows:

[0013] After adjusting the size, the device can be clamped to prevent thread loosening during shaking;

[0014] Place the cable inside the second snap ring and the first snap ring, then insert the bolt through the nut, rotate the nut to tighten the second snap ring and the first snap ring with the bolt. Since the nut is slidably installed on the first snap ring and rotatably installed on the second snap ring, workers can directly fix it with tools without additional installation of bolts and nuts, avoiding the situation where the bolt may slip out of the hand during the installation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a front structural schematic diagram of the present utility model;

[0016] Figure 2 is a partial structural schematic diagram of the support frame of the present utility model;

[0017] Figure 3 is a partial structural schematic diagram of the snap ring of the present utility model;

[0018] Figure 4 is an open structural schematic diagram of the snap ring of the present utility model;

[0019] Figure 5 is a partial top view structural schematic diagram of the support frame of the present utility model;

[0020] Figure 6Structural schematic diagram of part A of the present utility model

[0021] As shown in the figure: support frame 1; connecting shaft 2; first snap ring 3; second snap ring 4; sleeve 5; drive gear 6; screw 7; connecting block 8; rotating bolt 9; bolt 10; nut 11; limiting ring 12; fixing block 13; crown gear 14; pin 15; sliding sleeve 16; connecting rod 17; strip gear 18; first connecting sleeve 19; second connecting sleeve 20. Specific embodiments

[0022] The present utility model will be described in detail below in conjunction with the specific embodiments shown in the drawings. However, these embodiments do not limit the present utility model, and any structural, method, or functional transformation made by those of ordinary skill in the art based on these embodiments is included in the protection scope of the present utility model.

[0023] Embodiment 1: Please refer to Figure 1 、 2 Figures 5 and 6, a wind-resistant and anti-galloping mechanism for transmission lines, including several support frames 1, which are rotatably connected by connecting shafts 2 between several support frames 1. The support frames 1 are in a foldable state, and the folding can be adjusted according to the actual wire distance corresponding to the size of the jump needle. First snap rings 3 are fixedly installed on the connecting shafts 2. The right end of the inner side of the support frame 1 is rotatably connected with a second connecting sleeve 20. A sleeve 5 is rotatably installed on the second connecting sleeve 20. A drive gear 6 is fixedly installed on the outer surface of the sleeve 5. A connecting block 8 is sleeved on the outer surface of the sleeve 5. The left end of the inner side of the support frame 1 is rotatably installed with a first connecting sleeve 19. A screw 7 is fixedly installed at the right end of the first connecting sleeve 19. The sleeve 5 is threadedly sleeved on the outer surface of the screw 7. A chute is provided on the screw 7, and a strip gear 18 is fixedly installed on the chute. A rotating bolt 9 is passed through the connecting block 8. A crown gear 14 is fixedly installed at the rear end of the rotating bolt 9. The crown gear 14 meshes with the drive gear 6. A fixing block 13 is fixedly installed at the front end of the connecting block 8. Connecting rods 17 are slidably installed at both the upper and lower ends of the fixing block 13. A sliding sleeve 16 is rotatably installed on the inner side of the connecting rod 17. A pin 15 is slidably installed on the sliding sleeve 16. When the appropriate size is adjusted, the strip gear 18 can be clamped by the pin 15.

[0024] Embodiment 2: Please refer to Figure 1 、 3 Figures 4, a wind-resistant and anti-galloping mechanism for transmission lines, which is different from Embodiment 1 in that a second snap ring 4 is rotatably installed on the first snap ring 3. Insulating rubber pads are fixedly installed on both the inner sides of the second snap ring 4 and the first snap ring 3. A bolt 10 is passed through the first snap ring 3. A rhombic chute is provided on the bolt 10. A limiting ring 12 is sleeved on the bolt 10. The inner ring part of the limiting ring 12 is clamped on the rhombic chute, and the limiting ring 12 will not break away from the bolt 10. A nut 11 is rotatably connected to the second snap ring 4.

[0025] Working principle: When in use, according to the actual wire distance of the cable, use a tool to twist the rotating bolt 9. When the rotating bolt 9 rotates, it drives the driving gear 6 to rotate. At the same time, the driving gear 6 drives the sleeve 5 to rotate. When the sleeve 5 rotates, due to the threaded sleeve relationship with the screw rod 7, it moves left or right. While moving left and right, it drives the support frame 1 to start folding, so as to adapt to application environments in different situations. When adjusted to the appropriate size, the inclined pin 15 is clamped on the strip gear 18, and then press it in the direction of the fixed block 13 so that the pin 15 is penetrated by the convex block at the left end of the fixed block 13, and the fixation can be completed. After adjusting the size, the device can be clamped to prevent thread loosening during shaking. After that, place the cable inside the second clamping ring 4 and the first clamping ring 3, and then pass the bolt 10 through the inside of the nut 11. Rotate the nut 11 to tighten the second clamping ring 4 and the first clamping ring 3 with the bolt 10. Since the nut 11 is slidably installed on the first clamping ring 3 and the nut 11 is rotatably installed on the second clamping ring 4, workers can directly fix it with a tool without additional installation of bolts and nuts, avoiding the situation where the bolt may slip out of the hand during the installation process.

[0026] It should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0027] The series of detailed descriptions listed above are only specific descriptions of the feasible implementation manners of the present invention, and they are not used to limit the protection scope of the present invention. Any equivalent implementation manners or changes made without departing from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A wind-resistant and anti-dancing mechanism for a transmission line, comprising a support frame, characterized in that: The support frames are provided in several groups, and the groups of support frames are rotatably connected through connecting shafts. The right inner end of the support frame is rotatably connected with a second connecting sleeve, a sleeve is rotatably mounted on the second connecting sleeve, and a first clamping ring is fixedly mounted on the connecting shaft.

2. The wind-resistant and anti-dancing mechanism for power transmission lines according to claim 1, characterized in that: A driving gear is fixedly mounted on the outer surface of the sleeve, a connecting block is sleeved on the outer surface of the sleeve, and a first connecting sleeve is rotatably mounted on the inner left end of the support frame.

3. The wind-resistant and anti-dancing mechanism for power transmission lines according to claim 2 is characterized in that: A screw is fixedly mounted on the right end of the first connecting sleeve, the sleeve is threadedly sleeved on the outer surface of the screw, a slide groove is provided on the screw, and a bar gear is fixedly mounted on the slide groove.

4. The wind-resistant and anti-dancing mechanism for power transmission lines according to claim 3 is characterized in that: A rotating bolt is passed through the connecting block, a crown gear is fixedly mounted on the rear end of the rotating bolt, the crown gear is meshed with the driving gear, and a fixing block is fixedly mounted on the front end of the connecting block.

5. The wind-resistant and anti-dancing mechanism for power transmission lines according to claim 4, characterized in that: Connecting rods are slidably mounted on both upper and lower ends of the fixing block, a sliding sleeve is rotatably mounted on the inner side of the connecting rod, and a latch is slidably mounted on the sliding sleeve.

6. The wind-resistant and anti-dancing mechanism for power transmission lines according to claim 1, characterized in that: The second clamping ring is rotatably mounted on the first clamping ring, and bolts are passed through the first clamping ring.

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