A medium and low voltage distribution network overhead line anti-swing fixing device

Abstract

The utility model discloses a kind of overhead line anti-sway fixing devices of medium-low voltage distribution network, it is related to anti-sway device technical field, to solve the technical problem of current fixing device rigidly clamped, when overhead line high load-bearing, easy to damage, including adjusting assembly, winding assembly and positioning assembly, the positioning assembly includes long strip shell, gland installed in shell upper surface opening, and spring elastically connected shell inside and gland, the adjusting assembly includes pull arm slidingly inserted in shell port, guide shell fixed on pull arm, adjusting groove opened in pull arm outer end, and hook claw slidingly installed on adjusting groove, the winding assembly includes box body fixed in pull arm and spigot end connection, rotatingly installed in box body both sides by bearing embedding type rotating drum, winding shaft connecting two rotating drums, and side cover is screw-mounted in box body side edge. The utility model has the advantages of tight line anti-sway cooperation load-bearing buffer, ensure the advantages of anti-sway and fixing effect.

Description

Technical Field

[0001] This utility model relates to the technical field of anti-sway devices, and more specifically, to an anti-sway fixing device for overhead lines in medium and low voltage power distribution networks. Background Technology

[0002] Medium-voltage distribution network outdoor cable branch protection equipment is used in medium-voltage distribution networks to protect and control outdoor cable branches. Medium and low-voltage distribution network overhead lines are typically supported and fixed by poles, insulators, and hardware, with the conductors suspended in the air. The conductors are generally made of aluminum stranded wire or steel-cored aluminum stranded wire; in some special scenarios, overhead insulated conductors may also be used.

[0003] Low-voltage distribution networks typically consist of four sets of overhead lines. These lines, suspended in the air, are prone to swaying during strong air currents. Therefore, metal horizontal tools are needed to connect the poles and towers to limit the swaying and maintain effective stability, reducing the frequency of swaying. Existing fixing devices use rigid clamps to secure the overhead lines. Birds often perch on these lines; a small number of birds usually do not affect line operation, but large flocks can increase the load on the overhead lines, leading to damage. Therefore, we propose a sway-prevention fixing device for overhead lines in medium and low-voltage distribution networks. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a device for fixing and preventing swaying of overhead lines in medium and low voltage power distribution networks, so as to solve the technical problem that the current fixing device is rigidly clamped and easily damaged when the overhead line is under high load.

[0005] To solve the above technical problems, this utility model provides the following technical solution: a medium and low voltage distribution network overhead line anti-sway fixing device, including an adjustment component, a winding component, and a positioning component. The positioning component includes a long strip-shaped outer shell, a pressure cover installed at the opening on the upper surface of the outer shell, and a spring that elastically connects the inside of the outer shell to the pressure cover. The adjustment component includes a pull arm that is slidably inserted into the port of the outer shell, a guide shell fixed on the pull arm, an adjustment groove opened at the outer end of the pull arm, and a hook slidably installed on the adjustment groove. The inner end of the pull arm is provided with a plug-in end, and the upper side of the plug-in end is provided with a slot. The winding component includes a box body fixed at the connection between the pull arm and the plug-in end, a rotating drum that is rotatably installed on both sides of the box body through a bearing, a reel connecting the two rotating drums, and a side cover threaded on the side of the box body.

[0006] Preferably, both ends of the lower surface of the pressure cap are provided with retaining strips, and the retaining strips are engaged in the retaining grooves of the corresponding pull arms.

[0007] Preferably, the outer end of the pull arm is provided with a hook portion, and the hook portion is adapted to a hook claw; the plug end and the corner portion of the pull arm are provided with an inner locking slot; and the pull arm is provided with a traction rope.

[0008] Preferably, the traction rope passes through a bend in the guide housing, the outer end of the traction rope is fixed to the sliding end of the hook, and the inner end of the traction rope is wound onto a reel.

[0009] Preferably, the side cover is threaded into the annular opening on the side of the box body, a plug-in post is fixed inside the side cover, and the plug-in post is inserted and fixed into the outer opening of the rotating drum. A connecting post is fixed inside the rotating drum, and the connecting post is connected to the outer end recess of the roller through a coil spring.

[0010] Preferably, both the inner latch and the hook portion are provided with rubber pads, the inner latch opening faces downwards, the hook portion opening faces upwards, and a suspension line is installed inside the inner latch and the hook portion.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. After the suspended wires of this utility model are erected, both ends are fixed by clamps. Then, this device is installed between four suspended wires. The middle suspended wire is clamped in the inner slot, and the hook part of the outer end of the pull arm is hooked in the opposite direction to the outer suspended wire. The device is balanced by alternating forward and reverse. The plug end slides into the housing of the positioning component to adjust and tighten the distance between adjacent suspended wires. The stability of the suspended wires is maintained by the taut state, which reduces the swaying of the suspended wires and reduces the load when strong winds blow.

[0012] 2. When this utility model is used, the outer suspension line is engaged inside the hook claw. When tightened, the hook claw slides to the hook part. At this time, the winding assembly is in an outward release state. When a flock of birds stays on a single suspension line, the device distributes the force, reducing the phenomenon of excessive force on a single suspension line causing damage to the connection end. At the same time, the outer suspension line further reduces the intensity of synchronous force through elastic buffering, ensuring practical effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the tightened state of this utility model; Figure 3 This is a schematic diagram of the adjustment component of this utility model; Figure 4 This is a schematic diagram of the winding assembly of this utility model; Figure 5 This is a cross-sectional view of the scroll of this utility model; Figure 6 This is a schematic diagram of the unfolded state of this utility model; Figure 7 This is a side view of the pull arm of this utility model; Figure 8 This is a schematic diagram of the pull arm structure of this utility model; Figure 9 This is a cross-sectional view of the outer shell of this utility model.

[0014] The following are the labels in the diagram: 1. Suspension line; 2. Adjustment assembly; 201. Pull arm; 202. Adjustment groove; 203. Guide shell; 204. Traction rope; 205. Plug end; 206. Inner bayonet; 207. Hook; 208. Pull hook part; 209. Slot; 3. Rewind assembly; 301. Box body; 302. Side cover; 303. Rotary drum; 304. Reel; 305. Plug post; 306. Connecting post; 307. Coil spring; 4. Positioning assembly; 401. Outer shell; 402. Pressure cover; 403. Spring; 404. Locking strip. Detailed Implementation

[0015] like Figures 1 to 5 As shown, this utility model relates to an anti-sway fixing device for overhead lines in medium and low voltage power distribution networks, comprising an adjustment component 2, a winding component 3, and a positioning component 4. The positioning component 4 includes a long strip-shaped outer shell 401, a pressure cover 402 installed at the opening on the upper surface of the outer shell 401, and a spring 403 elastically connecting the interior of the outer shell 401 and the pressure cover 402. The adjustment component 2 includes a pull arm 201 slidably inserted into the port of the outer shell 401, a guide shell 203 fixed on the pull arm 201, an adjustment groove 202 opened at the outer end of the pull arm 201, and a hook 207 slidably installed on the adjustment groove 202. The inner end of the pull arm 201 is provided with a plug-in end 205, and the upper side of the plug-in end 205 is provided with a slot 209. Both ends of the lower surface of the pressure cover 402 are provided with locking strips 404, and the locking strips 404 are locked into the corresponding slots 209 of the pull arm 201. The outer end of the pull arm 201 is provided with a hook. The device has a pull hook 208 and a hook 207. The insertion end 205 and the corner of the pull arm 201 are provided with an inner slot 206. The pull arm 201 is provided with a traction rope 204. The traction rope 204 passes through the bent perforation inside the guide shell 203. The outer end of the traction rope 204 is fixed to the sliding end of the hook 207, and the inner end of the traction rope 204 is wound on the reel 304. After the suspension line 1 is erected, both ends are fixed by clamps. Then the device is installed between the four suspension lines 1. The middle suspension line 1 is clamped in the inner slot 206. The pull hook 208 at the outer end of the pull arm 201 is hooked in the opposite direction on the outer suspension line 1. The device is balanced by alternating forward and reverse. The insertion end 205 slides into the housing 401 of the positioning component 4 to adjust and tighten the distance between adjacent suspension lines 1. The suspension line 1 is kept stable by the tight state, which reduces the swaying of the suspension line 1 when strong wind blows and reduces the load.

[0016] like Figures 4 to 9As shown, this utility model relates to an anti-sway fixing device for overhead lines in medium and low voltage power distribution networks, including an adjustment assembly 2, a winding assembly 3, and a positioning assembly 4. The winding assembly 3 includes a housing 301 fixed at the connection between the pull arm 201 and the plug-in end 205, a rotating drum 303 rotatably mounted on both sides of the housing 301 via bearing embedded mounting, a winding shaft 304 connecting the two rotating drums 303, and a side cover 302 threadedly mounted on the side of the housing 301. The side cover 302 is threadedly mounted in the annular opening on the side of the housing 301. A plug-in post 305 is fixed inside the side cover 302 and is inserted and fixed in the outer opening of the rotating drum 303. A connecting post 306 is fixed at the inner end of the rotating drum 303. The outer end of the reel 304 is connected to the notch via a coil spring 307. Both the inner latch 206 and the hook portion 208 are equipped with rubber pads. The inner latch 206 faces downwards, and the hook portion 208 faces upwards. The suspended line 1 is installed in the inner latch 206 and the hook portion 208. In use, the outer suspended line 1 is engaged inside the hook claw 207. When tightened, the hook claw 207 slides to the hook portion 208. At this time, the reel assembly 3 is in an outward release state. When a flock of birds rests on a single suspended line 1, the device distributes the force, reducing the damage to the connection end caused by excessive force on a single suspended line 1. At the same time, the outer suspended line 1 further reduces the intensity of synchronous force through elastic buffering, ensuring practical effect.

[0017] Working principle: This embodiment provides a device for fixing and preventing swaying of overhead lines in medium and low voltage power distribution networks. After the suspended line 1 is erected, both ends are fixed by clamps. Then, this device is installed between four suspended lines 1. The middle suspended line 1 is clamped in the inner clamp 206. The hook part 208 at the outer end of the pull arm 201 is hooked in the opposite direction on the outer suspended line 1. The device is kept balanced by alternating forward and reverse directions. The plug end 205 slides into the outer shell 401 of the positioning component 4 to adjust and tighten the spacing between adjacent suspended lines 1. The outer suspended line 1 is clamped in the inside of the hook 207. When tightened, the hook 207 slides to the inside of the hook part 208. At this time, the winding component 3 is in an outward release state. When a flock of birds stays on a single suspended line 1, the device distributes the force and reduces the phenomenon of damage to the connection end caused by excessive force on a single suspended line 1. At the same time, the outer suspended line 1 further reduces the intensity of synchronous force through elastic buffering.

[0018] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A device for preventing swaying and fixing overhead lines in medium and low voltage power distribution networks, comprising an adjusting assembly (2), a winding assembly (3), and a positioning assembly (4), characterized in that: The positioning component (4) includes a long strip-shaped outer shell (401), a pressure cap (402) installed at the opening on the upper surface of the outer shell (401), and a spring (403) that elastically connects the inside of the outer shell (401) and the pressure cap (402). The adjustment component (2) includes a pull arm (201) that is slidably inserted into the port of the outer shell (401), a guide shell (203) fixed on the pull arm (201), an adjustment groove (202) opened at the outer end of the pull arm (201), and a hook (207) that is slidably installed on the adjustment groove (202). The inner end of the pull arm (201) is provided with a plug-in end (205), and a slot (209) is provided on the upper side of the plug-in end (205). The winding assembly (3) includes a housing (301) fixed at the connection between the pull arm (201) and the plug end (205), a rotating drum (303) rotatably mounted on both sides of the housing (301) by means of bearings, a spool (304) connecting the two rotating drums (303), and a side cover (302) threaded onto the side of the housing (301).

2. The anti-sway fixing device for overhead lines in medium and low voltage power distribution networks according to claim 1, characterized in that: Both ends of the lower surface of the pressure cap (402) are provided with locking strips (404), and the locking strips (404) are engaged in the locking grooves (209) of the corresponding pull arm (201).

3. The anti-sway fixing device for overhead lines in medium and low voltage power distribution networks according to claim 2, characterized in that: The outer end of the pull arm (201) is provided with a hook part (208), and the hook part (208) is adapted to a hook claw (207). The plug end (205) and the corner of the pull arm (201) are provided with an inner bayonet (206). The pull arm (201) is provided with a traction rope (204).

4. The anti-sway fixing device for overhead lines in medium and low voltage power distribution networks according to claim 3, characterized in that: The traction rope (204) passes through the bend in the guide shell (203), the outer end of the traction rope (204) is fixed to the sliding end of the hook (207), and the inner end of the traction rope (204) is wound on the reel (304).

5. The anti-sway fixing device for overhead lines in medium and low voltage power distribution networks according to claim 4, characterized in that: The side cover (302) is threaded into the annular opening on the side of the box body (301). A plug-in post (305) is fixed inside the side cover (302), and the plug-in post (305) is plugged into and fixed inside the outer opening of the rotating drum (303). A connecting post (306) is fixed at the inner end of the rotating drum (303), and the connecting post (306) is connected to the outer end recess of the scroll (304) through a coil spring (307).

6. The anti-sway fixing device for overhead lines in medium and low voltage power distribution networks according to claim 5, characterized in that: Both the inner slot (206) and the hook part (208) are provided with rubber pads. The inner slot (206) opens downwards and the hook part (208) opens upwards. A suspension line (1) is installed in the inner slot (206) and the hook part (208).

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