Overhead line lead lifting protector

Abstract

The utility model discloses an overhead line lead lifting protector, relates to the technical field of lifting protectors, and aims to solve the technical problems that the weight of a device is increased, the structure is complex and easy to damage due to the fact that a semi-opening structure of an existing lifting hook is matched with anti-falling parts such as a buckle and the like. The hanging mechanism comprises a hook body, a cavity channel is formed in one side of the interior of the hook body, a wire is arranged in the cavity channel, and a wire leading unit is arranged on the other side of the interior of the hook body. According to the utility model, through the matching design of the inlet / outlet A, the inlet / outlet B and the arc-shaped channel, a lead moves along an arc-shaped track no matter entering from any port, displacement is limited by geometric constraint formed by steering, and compared with a traditional buckle structure, the number of mechanical parts is reduced through shape optimization, the abrasion and clamping stagnation risks are reduced, and the service life of the lead is prolonged. According to the scheme, the overall structure is simplified while the anti-falling effect is maintained, the device is more suitable for being used in the outdoor environment for a long time, and the reliability and durability of the device are improved.

Description

Technical Field

[0001] This utility model relates to the field of lifting protection device technology, and more specifically, to an overhead line conductor lifting protection device. Background Technology

[0002] Overhead lines are a type of power transmission line that uses poles or other supporting structures to raise conductors in the air. During the construction and maintenance of overhead lines, it is often necessary to lift the conductors, making conductor lifting protectors an important auxiliary device. This device is used to lift and protect the conductors, and its structural design directly affects the smoothness, safety, and stability of the conductor lifting process.

[0003] Existing conductor lifting protectors typically employ a semi-open lifting hook structure, relying on latches and locking tongues to prevent detachment. These additional structures increase the device's weight and are prone to damage due to their relatively complex construction. Therefore, we propose a new overhead line conductor lifting protector. 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 an overhead line conductor lifting and protection device to solve the technical problems of increased device weight, complex structure and easy damage caused by the existing lifting hook semi-open structure and anti-detachment components such as buckles.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an overhead line conductor lifting and protection device, including a lifting mechanism, a hanging mechanism arranged below the lifting mechanism, the hanging mechanism including a hook body, a cavity arranged on one side of the hook body, a conductor arranged in the cavity, and a lead wire unit arranged on the other side of the hook body;

[0006] The lead unit includes a channel, with an inlet / outlet A arranged at one end of the channel and an inlet / outlet B arranged at the other end of the channel. The inlet / outlet A gradually tapers inward toward the channel and has an arc-shaped structure. The width of the inlet / outlet A is greater than the diameter of the wire. The position of the inlet / outlet B toward the upper end of the channel is lower than the position of the inlet / outlet B toward the lower end of the channel.

[0007] Preferably, the lifting mechanism includes a triangular bracket with a triangular-shaped opening inside. The triangular bracket is made of high-strength aluminum alloy. A lifting block A is arranged at the upper end inside the triangular bracket, and a pulley A is rotatably installed inside the lifting block A.

[0008] Preferably, pulleys B are arranged at both ends inside the triangular bracket, and a steel wire rope is hung inside the pulleys B. The two ends of the steel wire rope are in the shape of a sleeve structure.

[0009] Preferably, a lifting block B is arranged on the upper outer side of the hook body, and a pulley C is rotatably installed inside the lifting block B, with a wire rope sleeved on the pulley C.

[0010] Preferably, a pulley D is rotatably mounted on the upper end of the cavity, a pulley E is rotatably mounted on the lower end of the cavity, and a ramp is provided below the pulley E.

[0011] Preferably, the cavity has recesses on both sides, and smooth protrusions are arranged in the recesses. The smooth protrusions are fixed in the recesses by epoxy resin adhesive.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model, through the design of inlet / outlet A, channel, and inlet / outlet B, ensures that when a conductor needs to enter the cavity, it must move along the arc-shaped trajectory of the channel, regardless of whether it enters through inlet / outlet A or inlet / outlet B. This design effectively reduces the possibility of the conductor detaching due to external shaking or other factors, as the structural constraint formed by the trajectory change after entering the cavity. Unlike traditional methods that rely on complex mechanical components such as buckles and locking tongues for limiting the conductor, this solution achieves the anti-detachment effect through pure geometric optimization. The structure is simple and compact, reducing the risk of wear and jamming caused by numerous parts. It is especially suitable for overhead line construction environments that are exposed to the outdoors for a long time, and can significantly improve the durability of the device.

[0014] 2. The inlet and outlet B of this utility model adopts an asymmetrical height layout, with its position facing the upper end of the cavity lower than that facing the lower end, forming a unique height difference guiding structure. This design allows the wire to move up and down in the cavity under the action of external force, and it will naturally slide along the inner wall of the cavity between pulleys D and E. When the wire moves to the upper part of the cavity, due to the height difference between the inlet and outlet B, its movement trajectory is restricted to the controllable range of pulley E, making it difficult to directly enter the exit path of inlet and outlet B. Even if the wire moves up briefly, it will return to pulley E under the combined action of gravity and the wall guidance when it falls, rather than easily sliding into inlet and outlet B.

[0015] 3. This utility model features a smooth convex ridge structure with a cylindrical bottom end. This shape fits well with the circular structure of the recess, allowing for convenient and stable installation of the smooth convex ridge within the recess, ensuring accurate and stable installation. The top two sides are sloped, so when the wire moves within the cavity, it only makes line contact with the slope of the smooth convex ridge, rather than fully contacting the entire inner wall of the hook. This effectively reduces the frictional contact area, lowers the resistance to wire movement, and improves the smoothness of wire movement. In terms of the fixing process, epoxy resin adhesive is used for bonding, which expands the bonding coverage area, making the smooth convex ridge more tightly connected to the surrounding structure. This enhances the shear fatigue resistance, optimizes the overall structural stability and durability, and provides a solid guarantee for the reliable operation of the device during long-term use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main appearance structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the main structure of the hoisting mechanism of this utility model;

[0018] Figure 3 This is a top view schematic diagram of the hoisting mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the main structure of the hanging mechanism of this utility model;

[0020] Figure 5 This is a schematic diagram of the planar structure of the hanging mechanism of this utility model;

[0021] Figure 6 This is a schematic diagram of the left-side separation structure of the hook body of this utility model;

[0022] Figure 7 This is a schematic diagram of the right-side view of the separation structure of the hook body of this utility model;

[0023] Figure 8 This is a schematic diagram of the smooth convex ridge structure of this utility model.

[0024] Explanation of the labels in the diagram:

[0025] 1. Lifting mechanism; 101. Triangular bracket; 102. Lifting block A; 103. Pulley A; 104. Pulley B; 105. Wire rope; 2. Suspension mechanism; 201. Hook; 202. Cavity; 203. Lead wire unit; 2031. Channel; 2032. Inlet / outlet A; 2033. Inlet / outlet B; 204. Lifting block B; 205. Pulley C; 206. Pulley D; 207. Pulley E; 208. Slope block; 209. Notch; 2010. Smooth ridge; 3. Conductor. Detailed Implementation

[0026] like Figures 1 to 8 As shown, the present invention relates to an overhead line conductor lifting protector, which includes a lifting mechanism 1, a hanging mechanism 2 arranged below the lifting mechanism 1, the hanging mechanism 2 including a hook body 201, a cavity 202 arranged on one side inside the hook body 201, a conductor 3 arranged in the cavity 202, and a lead wire unit 203 arranged on the other side inside the hook body 201.

[0027] The lead unit 203 includes a channel 2031. One end of the channel 2031 is provided with an inlet and outlet A2032, and the other end of the channel 2031 is provided with an inlet and outlet B2033. The inlet and outlet A2032 gradually tapers inward toward the channel 2031 and has an arc-shaped structure. The width of the inlet and outlet A2032 is greater than the diameter of the wire 3. The position of the inlet and outlet B2033 toward the upper end of the cavity 202 is lower than the position of the inlet and outlet B2033 toward the lower end of the cavity 202. This invention, through the design of inlet / outlet A2032, channel 2031, and inlet / outlet B2033, ensures that when the conductor 3 needs to enter the cavity 202, it must move along the arc-shaped trajectory of channel 2031, regardless of whether it enters through inlet / outlet A2032 or inlet / outlet B2033. This design, due to the structural constraint formed by the trajectory change after the conductor 3 enters the cavity 202, effectively reduces the possibility of it detaching due to external shaking or other factors. Unlike traditional methods that rely on complex mechanical components such as buckles and locking tongues for limiting movement, this solution achieves the anti-detachment effect through pure geometric optimization. The structure is simple and compact, reducing the risk of wear and jamming caused by numerous parts. It is especially suitable for overhead line construction environments that are exposed to the elements for extended periods, significantly improving the durability of the device. The width of inlet / outlet A2032 is slightly larger than the diameter of the conductor 3, with a 1-3mm gap. This ensures that workers can push the conductor 3 in and out with appropriate force. Furthermore, precise gap control creates a mechanical limit. When the conductor 3 is subjected to external disturbances such as wind or vibration, the gap is insufficient to allow the conductor 3 to slide off on its own, requiring manual force to detach it. This achieves a balance between ease of operation and safety. The inlet and outlet B2033 adopts an asymmetrical height layout, with its position facing the upper end of the cavity 202 lower than its lower end, forming a unique height difference guiding structure. This design allows the conductor 3 to move up and down under external force within the cavity 202, naturally sliding along the inner wall of the cavity 202 between pulleys D206 and E207. When the conductor moves to the upper part of the cavity 202, its trajectory is restricted within the controllable range of pulley E207 due to the height difference between the inlet and outlet B2033, making it difficult for it to directly enter the detachment path of the inlet and outlet B2033. Even if the conductor 3 moves upward briefly, it will return to pulley E207 under the combined action of gravity and wall guidance when falling, rather than easily sliding into the inlet and outlet B2033.

[0028] In an embodiment of this utility model, the lifting mechanism 1 includes a triangular bracket 101, with a triangular-shaped opening inside the triangular bracket 101. The triangular bracket 101 is made of high-strength aluminum alloy material. A lifting block A102 is arranged at the upper end inside the triangular bracket 101, and a pulley A103 is rotatably installed inside the lifting block A102. This utility model, through the design of the triangular bracket 101 structure, allows two steel wire ropes 105 to be arranged on pulleys B104 installed at both ends, thus enabling the simultaneous suspension of four hooks 201. The four hooks 201 are used to stably lift the conductor 3. The triangular slits inside reduce the overall weight without changing the overall strength, and the slits also facilitate the insertion and removal of the triangular bracket 101 by workers' fingers. The triangular bracket 101 is made of high-strength aluminum alloy, which has the advantages of resisting atmospheric and humid environment corrosion, requiring no additional coating, and reducing the weight by 60% compared to steel at the same strength, making it easy to carry and install for high-altitude operations. Through the design of the lifting block A102 and pulley A103 structure, one end of the winch's lifting rope can be connected inside, allowing the utility model to be raised by the winch.

[0029] In this embodiment of the invention, pulleys B104 are arranged at both ends inside the triangular bracket 101, and a steel wire rope 105 is hung inside the pulleys B104. The two ends of the steel wire rope 105 are shaped like sleeves. By designing the pulleys B104 and the steel wire rope 105, this invention allows the hooks 201 in the hanging mechanism 2 to be hung and connected to the triangular bracket 101. The steel wire rope 105 is passed around the surface of the pulleys B104, so that the sleeves at both ends can hang two hooks 201 at the same time, which is convenient for connection and allows for multiple hanging.

[0030] In an embodiment of this invention, a lifting block B204 is arranged on the upper outer side of the hook body 201. A pulley C205 is rotatably installed inside the lifting block B204, and a steel wire rope 105 is sleeved on the pulley C205. Through the structure of the lifting block B204 and the pulley C205, this invention allows the steel wire rope 105 arranged on the triangular bracket 101 to be connected internally, providing a connection point so that the hook body 201 can be movably connected to the triangular bracket 101, facilitating initial connection and installation as well as subsequent disassembly and separation.

[0031] In this embodiment of the invention, a pulley D206 is rotatably mounted on the upper end of the cavity 202, and a pulley E207 is rotatably mounted on the lower end of the cavity 202. A ramp 208 is provided below the pulley E207. By designing the structure of pulleys D206 and E207, this invention guides the sliding of the wire 3 entering the cavity 202 through inlet / outlet A2032, channel 2031, and inlet / outlet B2033. When the wire 3 rises and slides within the cavity 202 due to external factors, the pulleys D206 and E207 at its upper and lower ends will block and assist its movement, maintaining the longitudinal movement of the wire 3 while reducing friction. This prevents the inner wall of the hook 201 from directly contacting the wire 3 and causing abrasion damage. The ramp 208 allows rainwater to flow down from the lower end of the cavity 202, preventing rainwater accumulation and damage to the pulley E207.

[0032] In an embodiment of this utility model, recesses 209 are provided on both sides inside the cavity 202, and smooth protrusions 2010 are arranged inside the recesses 209. The smooth protrusions 2010 are bonded and fixed inside the recesses 209 by epoxy resin adhesive. This utility model features a smooth convex ridge 2010 structure with a cylindrical bottom end. This shape fits well with the circular structure of the recess 209, allowing for convenient and stable installation of the smooth convex ridge 2010 within the recess 209, ensuring accurate and stable installation. The top two sides are sloped, so when the wire 3 moves within the cavity 202, it only makes line contact with the slope of the smooth convex ridge 2010, rather than making full contact with the entire inner wall of the hook body 201. This effectively reduces the frictional contact area, lowers the resistance to wire movement, and improves the smoothness of wire movement. In terms of the fixing process, epoxy resin adhesive is used for bonding, which expands the bonding coverage area, making the smooth convex ridge 2010 more tightly connected to the surrounding structure, thereby enhancing the shear fatigue resistance, optimizing the overall structural stability and durability, and providing a solid guarantee for the reliable operation of the device during long-term use.

[0033] Working Principle: This embodiment provides an overhead line conductor lifting and protection device. During use, the operator connects pulley A103 to the hoisting rope of the winch. After connection, the operator inserts conductor 3 into inlet / outlet A2032, then pushes conductor 3 along inlet / outlet A2032 into channel 2031, and then from channel 2031 into inlet / outlet B2033. Finally, through inlet / outlet B2033, conductor 3 is pushed into cavity 202. After being pushed in, the operator takes out wire rope 105 and passes it over pulley B104. Then, using the sleeve structure at both ends, it is fitted into pulley C205. After fitting, the operator can control the device. The winch lifts the lifting mechanism 1. After the lifting mechanism 1 is lifted, the suspension mechanism 2 connected to it by the wire rope 105 will also rise. The wire 3 in the hook 201 inside the suspension mechanism 2 will also rise together, thus completing the wire lifting operation. When the wire 3 is lifted to the position to be suspended, the worker can move the wire 3 to push it into the inlet / outlet B2033. Then, the wire 3 is guided and transmitted to the inlet / outlet A2032 through the channel 2031. Finally, the wire 3 is removed from the hook 201 through the inlet / outlet A2032. In this way, the lifting mechanism 1 and the suspension mechanism 2 can continue to lift other wires 3.

[0034] 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. An overhead line conductor lifting protection device, comprising a lifting mechanism (1), characterized in that: Below the lifting mechanism (1) is a hanging mechanism (2), which includes a hook (201). A cavity (202) is arranged on one side of the hook (201), and a wire (3) is arranged in the cavity (202). A lead wire unit (203) is arranged on the other side of the hook (201). The lead unit (203) includes a channel (2031), one end of which is provided with an inlet / outlet A (2032), and the other end of which is provided with an inlet / outlet B (2033). The inlet / outlet A (2032) gradually tapers inward toward the channel (2031) and has an arc-shaped structure. The width of the inlet / outlet A (2032) is greater than the diameter of the wire (3). The position of the inlet / outlet B (2033) toward the upper end of the cavity (202) is lower than the position of the inlet / outlet B (2033) toward the lower end of the cavity (202).

2. The overhead line conductor lifting protection device according to claim 1, characterized in that: The lifting mechanism (1) includes a triangular bracket (101), which has a triangular-shaped opening. The triangular bracket (101) is made of high-strength aluminum alloy. A lifting block A (102) is arranged at the upper end of the inside of the triangular bracket (101), and a pulley A (103) is rotatably installed inside the lifting block A (102).

3. The overhead line conductor lifting protection device according to claim 2, characterized in that: The triangular bracket (101) has pulleys B (104) arranged at both ends inside, and a steel wire rope (105) is hung inside the pulleys B (104). The two ends of the steel wire rope (105) are in the shape of a sleeve structure.

4. The overhead line conductor lifting protection device according to claim 3, characterized in that: A lifting block B (204) is arranged on the upper part of the hook body (201), and a pulley C (205) is rotatably installed inside the lifting block B (204), and a steel wire rope (105) is sleeved on the pulley C (205).

5. The overhead line conductor lifting protection device according to claim 4, characterized in that: A pulley D (206) is rotatably installed at the upper end of the cavity (202), and a pulley E (207) is rotatably installed at the lower end of the cavity (202). A ramp (208) is provided below the pulley E (207).

6. The overhead line conductor lifting protection device according to claim 5, characterized in that: The cavity (202) has recesses (209) on both sides inside, and smooth protrusions (2010) are arranged in the recesses (209). The smooth protrusions (2010) are fixed in the recesses (209) by epoxy resin adhesive.

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