Insulation protection device for power overhead line

Abstract

The utility model relates to the technical field of electric power equipment protection, and discloses an insulation protection device for an electric power overhead line, which comprises an insulator, the left side and the right side of the outer wall of the insulator are respectively provided with an insulation cover, the tops of the adjacent sides of the two insulation covers are rotatably connected, the inner walls of the two insulation covers are respectively and fixedly connected with a support frame, and the support frames are fixedly connected with the insulator. Heat absorption cotton is fixedly connected to the outer wall of the supporting frame, reflecting plates are fixedly connected to the outer walls of the two insulating covers, waterproof layers are fixedly connected to the blocking outer walls of the two reflecting plates, and a dustproof plate is rotationally connected to the bottom of the insulating cover on the front side. According to the utility model, through cooperation of the insulating cover and the support frame, the heat absorbing cotton is stably supported, the heat absorbing cotton rapidly absorbs heat penetrating through the insulating cover, the reflecting plate reflects sunlight and reduces light intensity, and through cooperation of the insulating cover and the support frame, damage of sunlight exposure to the insulator is greatly relieved and stable performance of the insulator is comprehensively guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of power equipment protection technology, and in particular to an insulation protection device for overhead power lines. Background Technology

[0002] Overhead power lines, as an important carrier of power transmission, are widely distributed in urban and rural areas, playing a role in transmitting electricity from power plants to households, factories, and enterprises. They are mainly composed of poles, conductors, insulators, and hardware. In order to ensure the stability of the entire overhead line structure, insulation protection devices are required for overhead power lines.

[0003] Traditional insulation protection devices for overhead power lines are relatively simple in structure, consisting of ordinary porcelain or glass insulators as the core, along with some simple metal fasteners. During installation, the insulators are directly mounted on the crossarms of the poles using metal fasteners, and the conductors are suspended in the cable trays below the insulators. The insulation performance of the insulators is relied upon to prevent current leakage. However, in mountainous areas, tree branches can easily grow and touch the conductors, causing short circuits. In areas with frequent bird activity, birds perch on the poles, and their droppings contaminate the surface of the insulators, reducing their insulation performance. Existing technology uses warning signs to protect the insulators. These signs, which are hung in conspicuous locations on the poles and have warning images or sound devices, utilize birds' fear of unfamiliar visual and auditory stimuli to a certain extent, driving them away and reducing their presence and nesting around the poles and insulators. However, in actual use, the warning signs only serve a warning and deterrent function and do not improve the aging problems faced by the insulators themselves. As ultraviolet rays continuously penetrate the surface of the insulators under sunlight, they cause changes in the molecular structure of the internal materials, which can still lead to line faults. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides an insulation protection device for overhead power lines, aiming to improve the problem in the prior art where ultraviolet rays continuously penetrate the surface of the insulator under sunlight, causing changes in the molecular structure of the internal material, which can still lead to line faults.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an insulation protection device for overhead power lines, comprising an insulator, wherein an insulating cover is provided on both the left and right sides of the outer wall of the insulator, the top of two adjacent sides of the two insulating covers are rotatably connected, a support frame is fixedly connected to the inner wall of each of the two insulating covers, heat-absorbing cotton is fixedly connected to the outer wall of the support frame, a reflector is fixedly connected to the outer wall of each of the two insulating covers, a waterproof layer is fixedly connected to the outer wall of each of the two reflectors, a dustproof plate is rotatably connected to the bottom of the front insulating cover, and a quick-installation mechanism is provided on the outer wall of the rear waterproof layer, the quick-installation mechanism being used for quickly installing the dustproof plate.

[0006] As a further description of the above technical solution:

[0007] The quick-installation mechanism includes two fixed seats, which are respectively fixedly connected to the left and right rear ends of the outer wall of the rear waterproof layer. Mounting plates are fixedly connected to the left and right rear ends of the top of the dustproof plate. Sliding grooves are provided at the bottom of both fixed seats, and the two mounting plates are slidably connected to their corresponding sliding grooves. Reserved slots are provided on the inner walls of both fixed seats, and insert rods are slidably connected to the inner walls of both reserved slots. Limiting rings are fixedly connected to the middle of the outer walls of both insert rods, and springs are fixedly connected to the rear sides of the outer walls of both limiting rings. The rear ends of both springs are fixedly connected to their corresponding reserved slots. Insertion holes are provided on the rear sides of the outer walls of both mounting plates, and the front ends of both insert rods open and close with their corresponding insertion holes.

[0008] As a further description of the above technical solution:

[0009] Rubber pads are fixedly connected to the left and right ends of adjacent sides of the two insulating covers, and the adjacent sides of the multiple rubber pads are in contact with the insulator.

[0010] As a further description of the above technical solution:

[0011] Multiple drainage grooves are provided on the top left and right sides of both waterproof layers, and the spacing between adjacent drainage grooves is equal.

[0012] As a further description of the above technical solution:

[0013] An information board is provided on the right side of the outer wall of the rear waterproof layer. Screws are threaded at the four corners of the outer wall of the information board, and the rear ends of the screws are threaded to the waterproof layer.

[0014] As a further description of the above technical solution:

[0015] Each of the screws has a cross-shaped groove on the right end of its outer wall, and the surfaces of the screws are all smoothed.

[0016] As a further description of the above technical solution:

[0017] A reflective strip is fixedly connected to the front end of the outer wall of the waterproof layer on the front side, and the surface of the reflective strip is treated with wear resistance.

[0018] As a further description of the above technical solution:

[0019] Both of the outer walls of the two inserts are rotatably connected to pull rings at their rear ends, and the surfaces of both pull rings are treated with anti-slip coating.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the insulating cover and the support frame work together to firmly support the heat-absorbing cotton. The heat-absorbing cotton quickly absorbs the heat that penetrates the insulating cover. At the same time, the reflector reflects sunlight and reduces the intensity of light. The two work together to greatly alleviate the damage to the insulator caused by sun exposure and effectively improve the problem of line faults caused by the deterioration of the internal materials of the insulator due to ultraviolet rays. In addition, the waterproof layer is waterproof and the dustproof plate is sealed and dustproof, which together protect the cleanliness of the insulator, avoid water and dust corrosion, and comprehensively ensure the stable performance of the insulator.

[0022] 2. In this utility model, thanks to the precise size matching between the mounting plate and the slide groove, operators can easily align and smoothly insert the plate. With the automatic locking structure composed of spring, limit ring and insertion rod, the dustproof plate can be quickly installed without complicated tools, which greatly improves the installation efficiency. On the other hand, during maintenance and cleaning, operators only need to overcome the spring force to pull the insertion rod, and the mounting plate can slide out smoothly for easy disassembly, which saves time and reduces the difficulty of operation, providing great convenience for subsequent equipment maintenance and cleaning work. Attached Figure Description

[0023] Figure 1 This is a perspective view of the insulation protection device for overhead power lines proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of an insulator for an insulation protection device for overhead power lines proposed in this utility model.

[0025] Figure 3 for Figure 2 Enlarged view of point A in the image;

[0026] Figure 4 This is a partial structural exploded view of the insulation protection device for overhead power lines proposed in this utility model;

[0027] Figure 5 A schematic diagram of the heat-absorbing cotton for the insulation protection device for overhead power lines proposed in this utility model;

[0028] Figure 6 This is a rear view of the insulation protection device for overhead power lines proposed in this utility model.

[0029] Figure 7 This is a schematic diagram of the quick-installation mechanism of the insulation protection device for overhead power lines proposed in this utility model;

[0030] Figure 8 This is a schematic diagram of the chute for the insulation protection device for overhead power lines proposed in this utility model.

[0031] Legend:

[0032] 1. Insulator; 2. Quick-installation mechanism; 201. Fixing base; 202. Mounting plate; 203. Slide groove; 204. Reserved groove; 205. Insert rod; 206. Limiting ring; 207. Spring; 208. Insertion hole; 3. Insulating cover; 4. Support frame; 5. Heat-absorbing cotton; 6. Reflector; 7. Waterproof layer; 8. Dustproof plate; 9. Rubber pad; 10. Drainage channel; 11. Information board; 12. Screw; 13. Cross groove; 14. Reflective strip; 15. Pull ring. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figure 2 , Figure 4 and Figure 5 This utility model provides an embodiment of an insulation protection device for overhead power lines, comprising an insulator 1, supporting the insulation isolation between the conductor and the tower, ensuring stable operation of the power system and preventing current leakage. Insulating covers 3, made of insulating material, are provided on both the left and right sides of the outer wall of the insulator 1 to shield it from wind and rain and prevent external debris from contacting the insulator 1. The tops of adjacent sides of the two insulating covers 3 are rotatably connected. Support frames 4 are fixedly connected to the inner walls of both insulating covers 3 to stably support the internal components and ensure the reliability of the protective structure. Heat-absorbing cotton 5 is fixedly connected to the outer wall of the support frame 4 to absorb heat permeating through the insulating covers. To prevent heat accumulation from damaging the insulator 1, the outer walls of both insulating covers 3 are fixedly connected to reflectors 6, which reflect a large amount of sunlight away, reduce the penetration of light into the insulating cover 3, and reduce heat transfer. The outer walls of both reflectors 6 are fixedly connected to waterproof layers 7 to prevent rainwater, dew and other moisture from penetrating and to avoid the risk of short circuit caused by moisture in the insulator 1. The bottom of the front insulating cover 3 is rotatably connected to a dustproof plate 8, which is normally in a closed state to block dust and debris from entering the protective space and keep the insulator 1 clean. The outer wall of the rear waterproof layer 7 is equipped with a quick-installation mechanism 2, which is used to quickly install the dustproof plate 8.

[0035] Specifically, firstly, the two insulating covers 3 are connected by a rotating joint on the top of adjacent sides, allowing for easy opening and closing. During installation, they are closed around the insulator 1 to form a preliminary protective shell for the insulator 1. The support frame 4 supports and fixes the internal components, ensuring the stability of the entire protective structure. When sunlight shines on the insulating cover 3, some heat is transferred to the interior through the insulating cover 3, and the heat-absorbing cotton 5 can quickly absorb this heat, preventing the heat from directly acting on the insulator 1 and reducing the risk of damage to the molecular structure of the internal materials of the insulator 1 due to high temperature. The reflector 6 can reflect a large amount of sunlight, reducing the intensity of light shining on the insulating cover 3, thereby reducing the heat entering the interior. The waterproof layer 7 prevents moisture from penetrating into the interior of the insulating cover 3 and corroding the insulator 1. The dustproof plate 8 is connected by a rotating joint at the bottom of the front insulating cover 3 and is closed under normal conditions to prevent dust and debris from entering the protective space and contaminating the insulator 1.

[0036] Reference Figure 1 , Figure 6 and Figure 7 The quick-installation mechanism 2 includes two fixed seats 201, which are fixedly connected to the left and right rear ends of the outer wall of the rear waterproof layer 7, providing a stable foundation support for the installation of subsequent components. Mounting plates 202 are fixedly connected to the top and rear ends of the dustproof plate 8 on both the left and right sides, allowing the dustproof plate 8 to establish a tight connection with the fixed seats 201. The bottom of each fixed seat 201 has a sliding groove 203, and the two mounting plates 202 are slidably connected to the corresponding sliding groove 203, providing guidance for the installation of the dustproof plate 8. The inner walls of each fixed seat 201 have reserved grooves 204, providing space for the insertion rods 205 to move. Insertion rods 205 are slidably connected to the inner walls of each reserved groove 204, allowing them to slide freely and change position. Limiting rings 206 are fixedly connected to the middle of the outer wall of the 05 to prevent the insertion rod 205 from coming out of the reserved slot 204. Springs 207 are fixedly connected to the rear side of the outer wall of the two limiting rings 206. The springs 207 are extended in their natural state and press against the wall of the reserved slot 204. The limiting rings 206 push the insertion rod 205 forward. The rear ends of the two springs 207 are fixedly connected to the corresponding reserved slots 204. The rear side of the outer wall of the two mounting plates 202 is provided with insertion holes 208. The front ends of the two insertion rods 205 are engaged with the corresponding insertion holes 208. When the mounting plate 202 slides along the slide groove 203 to the predetermined position, the front end of the insertion rod 205 is engaged with the insertion hole 208 under the push of the spring 207, fixing the dustproof plate 8 on the fixing base 201 and completing the quick installation.

[0037] Specifically, when the dustproof plate 8 needs to be installed, the operator first aligns the mounting plate 202 on the left and right sides of the top rear end of the dustproof plate 8 with the sliding groove 203 at the bottom of the fixing base 201. Because the dimensions of the mounting plate 202 and the sliding groove 203 are precisely matched, the mounting plate 202 can smoothly slide into the sliding groove 203. As the mounting plate 202 gradually penetrates deeper into the sliding groove 203, when the mounting plate 202 reaches the predetermined position, the insertion hole 208 on the rear side of its outer wall is precisely aligned with the front end of the insertion rod 205 in the reserved groove 204 on the inner wall of the fixing base 201. At this time, because a spring 207 connects the limiting ring 206 in the middle of the insertion rod 205 to the reserved groove 204, the spring 207 is in a relaxed state. When in the extended state, the limiting ring 206 will generate a forward thrust, which will push the insertion rod 205 forward. Under the action of the elastic force, the front end of the insertion rod 205 will quickly insert into the insertion hole 208 of the mounting plate 202 to achieve engagement. When it is necessary to remove the dust cover 8 for maintenance or cleaning, the operator only needs to pull the insertion rod 205 backward to overcome the elastic force of the spring 207, so that the front end of the insertion rod 205 will exit from the insertion hole 208 of the mounting plate 202. At this time, the mounting plate 202 is no longer constrained by the insertion rod 205 and can slide smoothly out along the slide groove 203, thereby quickly removing the dust cover 8. The entire disassembly process is also simple and quick, which facilitates subsequent operations and greatly improves the maintenance convenience of the device.

[0038] Reference Figure 1 , Figure 3 and Figure 8 Rubber pads 9 are fixedly connected to the left and right sides of the two adjacent insulating covers 3. The adjacent sides of the multiple rubber pads 9 are all in contact with the insulator 1 to fill the gaps, prevent dust and rainwater from entering from the side, and also play a buffering role. Multiple drainage grooves 10 are opened on the top left and right sides of the two waterproof layers 7. The spacing between the multiple drainage grooves 10 is equal, which quickly guides rainwater to slide down and avoids water accumulation and seepage. An information board 11 is set on the right side of the outer wall of the rear waterproof layer 7. It is fixed to the waterproof layer 7 by screws 12 and is used to display line information and warning signs, so as to facilitate the identification of operation and maintenance personnel and ensure the safe operation of power lines. Screws 12 are threadedly connected at the four corners of the outer wall of the information board 11, and the rear ends of the multiple screws 12 are threadedly connected to the waterproof layer 7.

[0039] Specifically, the rubber pad 9 fits tightly against the insulator 1, which can not only fill the gaps and prevent dust and rainwater from entering from the side, but also act as a buffer to prevent the insulator 1 from being damaged by the opening and closing of the insulating cover 3. The drainage channel 10 can quickly guide rainwater to slide down and prevent water from accumulating and seeping. The information board 11 is fixed to the waterproof layer 7 by screws 12 and is used to display line information and warning signs, so as to facilitate the identification of operation and maintenance personnel and ensure the safe operation of power lines.

[0040] Reference Figure 1 , Figure 2 and Figure 4Each of the screws 12 has a cross-shaped groove 13 on the right end of its outer wall. The cross-shaped groove 13 makes it easier to operate with a screwdriver, making it more convenient to install or remove the information sign 11. The surfaces of the screws 12 are all smoothed. A reflective strip 14 is fixedly connected to the front end of the outer wall of the front waterproof layer 7. The surface of the reflective strip 14 is treated with wear resistance, which can make it reflect light for a long time at night or in low light. Pull rings 15 are rotatably connected to the rear end of the outer wall of the two plug rods 205. The surfaces of the two pull rings 15 are treated with anti-slip treatment, which makes it easy to pull the plug rods 205 to remove the dust cover 8. The anti-slip treatment ensures that the hand will not slip during operation, improving the stability of operation.

[0041] Specifically, the cross groove 13 on the outer wall of the screw 12 makes it easy to operate with a screwdriver, making it easier to install or remove the information sign 11. The smooth surface treatment reduces friction when tightening, prevents rust, and extends service life. The reflective strip 14 is treated with wear resistance so that it can reflect light for a long time at night or in low light conditions. The pull ring 15 on the plug 205 makes it easy to pull the plug 205 to remove the dust cover 8. The anti-slip treatment ensures that the hand will not slip during operation, improving operational stability.

[0042] Working principle: When maintaining overhead power lines or installing insulation protection devices, the operator first opens the two insulation covers 3, places the insulator 1 in the appropriate position between the two insulation covers 3, and then closes the insulation covers 3. At this time, the support frame 4 on the inner wall of the insulation cover 3 firmly supports the heat-absorbing cotton 5, ensuring the stability of the entire protective structure. When sunlight shines, heat penetrates the insulation cover 3, and the heat-absorbing cotton 5 will quickly absorb this heat, avoiding the heat from directly impacting the insulator 1, effectively reducing the risk of damage to the internal materials of the insulator 1 due to high temperature. At the same time, the reflector 6 on the outer wall of the insulation cover 3 plays a role in reflecting a large amount of sunlight out, reducing the intensity of light shining on the insulation cover 3, thereby reducing the heat entering the interior, working together with the heat-absorbing cotton 5 to protect the insulator 1. The waterproof layer 7 can prevent water from penetrating into the interior of the insulation cover 3 and corroding the insulator 1. During daily operation, the dustproof plate 8 connected to the bottom of the front insulation cover 3 is in a closed state, isolating dust, debris, etc. from the outside, protecting the cleanliness and safety of the insulator 1 in all aspects, and ensuring the stable operation of the overhead power line.

[0043] Furthermore, when installing the dustproof plate 8, the operator aligns the mounting plate 202 on the dustproof plate 8 with the slide groove 203 of the fixing seat 201. Because the mounting plate 202 and the slide groove 203 are sized to match, the mounting plate 202 can be smoothly inserted along the slide groove 203. When the mounting plate 202 reaches the predetermined position, its insertion hole 208 aligns with the front end of the insertion rod 205. Since the spring 207 between the limiting ring 206 in the middle of the insertion rod 205 and the reserved groove 204 extends in its natural state, the limiting ring 206... 06 generates a forward thrust, pushing the insertion rod 205 forward so that the front end of the insertion rod 205 is inserted into the insertion hole 208 to achieve engagement, completing the installation of the dustproof plate 8. When maintenance or cleaning of the dustproof plate 8 is required, the operator pulls the insertion rod 205 backward to overcome the elastic force of the spring 207, causing the front end of the insertion rod 205 to exit from the insertion hole 208. At this time, the mounting plate 202 is no longer constrained by the insertion rod 205 and can slide out along the slide groove 203, thereby quickly disassembling the dustproof plate 8 and improving the convenience of device maintenance.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Insulation protection device for electric overhead lines, comprising an insulator (1), characterized in that: The outer wall of the insulator (1) is provided with an insulating cover (3) on the left and right sides, the adjacent side top of the two insulating covers (3) is rotationally connected, the inner wall of the two insulating covers (3) is fixedly connected with a support frame (4), the outer wall of the support frame (4) is fixedly connected with a heat-absorbing cotton (5), the outer wall of the two insulating covers (3) is fixedly connected with a reflecting plate (6), the outer wall of the two reflecting plates (6) is fixedly connected with a waterproof layer (7), the bottom of the front insulating cover (3) is rotationally connected with a dustproof plate (8), the outer wall of the rear waterproof layer (7) is provided with a quick mounting mechanism (2), and the quick mounting mechanism (2) is used for quickly mounting the dustproof plate (8).

2. Insulating guard for electric overhead lines according to claim 1, characterized in that: The quick mounting mechanism (2) comprises two fixed seats (201), the outer wall of the rear waterproof layer (7) is fixedly connected with the two fixed seats (201) on the left and right sides, the top rear end of the dustproof plate (8) is fixedly connected with a mounting plate (202), the bottom of the two fixed seats (201) is provided with a sliding groove (203), the two mounting plates (202) are respectively and slidably connected with the corresponding sliding grooves (203), the inner wall of the two fixed seats (201) is provided with a reserved groove (204), the inner wall of the two reserved grooves (204) is slidably connected with a plug rod (205), the outer wall of the middle part of the two plug rods (205) is fixedly connected with a limiting ring (206), the outer wall of the rear side of the two limiting rings (206) is fixedly connected with a spring (207), the rear end of the two springs (207) is fixedly connected with the corresponding reserved grooves (204), and the outer wall of the rear side of the two mounting plates (202) is provided with a plug hole (208).

3. Insulation guard for electric overhead lines according to claim 1, characterized in that: The adjacent side of the two insulating covers (3) is fixedly connected with a rubber pad (9), and the adjacent side of the plurality of rubber pads (9) is attached to the insulator (1).

4. Insulation guard for electric overhead lines according to claim 1, characterized in that: The top of the two waterproof layers (7) is provided with a plurality of drainage grooves (10) on the left and right sides, and the adjacent drainage grooves (10) are equal in spacing.

5. Insulation guard for electric overhead lines according to claim 1, characterized in that: The outer wall of the rear waterproof layer (7) is provided with an information board (11) on the right side, the outer wall of the four corners of the information board (11) is threadedly connected with a screw (12), and the rear end of the plurality of screws (12) is threadedly connected with the waterproof layer (7).

6. Insulation guard for electric overhead lines according to claim 5, characterized in that: The outer wall of the plurality of screws (12) is provided with a cross groove (13) at the right end, and the surface of the plurality of screws (12) is smooth.

7. Insulation guard for electric overhead lines according to claim 1, characterized in that: The outer wall of the front waterproof layer (7) is fixedly connected with a reflective strip (14) at the front end, and the surface of the reflective strip (14) is wear-resistant.

8. Insulation guard for electric overhead lines according to claim 2, characterized in that: The outer wall of the two plug rods (205) is rotationally connected with a pull ring (15) at the rear end, and the surface of the two pull rings (15) is anti-skid.

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