Electric insulator extended protective cover structure

Abstract

The invention provides an electric insulator extended protective cover structure, which comprises an insulator insulating cover body, the outer surface of the insulator insulating cover body is connected with a disc body, the disc body is provided with a heat dissipation groove, and the heat dissipation groove is used for ventilation and heat dissipation; a sliding guide assembly is arranged on the inner wall of the insulator insulating cover body, the sliding guide assembly comprises a guide groove, the guide groove is formed in the inner wall of the insulator insulating cover body, a limiting rod is embedded in the guide groove, an insulator insulating sleeve is further embedded in the guide groove, and the limiting rod is connected with the insulator insulating sleeve. The inner wall of the insulator insulation sleeve is connected with a locking limiting clamping ring, and the locking limiting clamping ring is of an annular structure formed by an elastic piece. According to the invention, the sliding guide assembly is matched with the reset elastic piece, so that automatic buffering and unloading can be realized when transverse displacement is generated under the action of wire galloping, icing load or wind power, the shedding or dislocation of the protective cover caused by rigid connection is avoided, and the continuous and effective coverage of an electrified part is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of insulator protective covers, in particular to an extended protective cover structure of an electrical insulator. Background Art

[0002] In the power transmission and distribution system, insulators play a key role in supporting and insulating conductors, ensuring that current can be transmitted safely and stably. However, the live parts of insulators are exposed to the external environment for a long time, facing the influence of various factors such as dust, water vapor, ultraviolet rays and mechanical stress, which may not only reduce the insulation performance of the insulators, but also pose the risk of causing electrical accidents. Therefore, it is very important to effectively protect the live parts of insulators.

[0003] In contrast, the Chinese patent with publication number CN115732142A discloses an insulator protective cover; the insulator protective cover is buckled into an "S"-shaped joint surface, which flexibly avoids other obstructions and is convenient for disassembly and assembly, and the water trough is convenient for the removal of stains such as accumulated water and bird droppings. The "T"-shaped buckle seat and buckle make it easy to disassemble and assemble and firm. The insulator protective cover is an economical and practical insulator composite device that is easy to install and disassemble and does not affect the later maintenance of the line tower area. It can greatly solve the problem of repeated bird damage on the first line of the power line that cannot be solved.

[0004] Traditional insulator protective covers are usually installed on the surface of the insulator by fixing clips or bolts. The protective covers are mostly in a simple wrapping form, and the protective materials are fixed to the insulators and cables by ropes or tapes. This method is cumbersome to install and has poor fixing effect. Transmission lines are prone to conductor dancing or stretching deformation due to temperature changes, ice loads or wind effects. The rigid connection between traditional protective covers and insulators cannot adapt to such displacements, causing the protective covers to fall off or misplace, and lose effective coverage of the live parts. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the defects of the prior art, and the present invention proposes an extended protective cover structure for an electrical insulator.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is that the electrical insulator extended protective cover structure includes an insulator insulating cover body, the outer surface of the insulator insulating cover body is connected to a disk body, and a heat dissipation groove is opened on the disk body, and the heat dissipation groove is used for ventilation and heat dissipation;

[0007] The inner wall of the insulator insulating cover is provided with a sliding guide assembly, and the sliding guide assembly includes a guide groove, and the guide groove is provided on the inner wall of the insulator insulating cover, and a limiting rod is embedded in the guide groove, and an insulator insulating sleeve is also embedded in the guide groove, and the inner wall of the insulator insulating sleeve is connected with a locking limiting clamp ring, and the locking limiting clamp ring is an annular structure formed by elastic members, and the outer surface of the locking limiting clamp ring is covered with a wrapping cover, and the surface of the insulator insulating sleeve is connected with a mounting block, and the top of the mounting block is connected with a slider, and the inner wall of the disk body is fixedly connected with a sliding groove, and a reset elastic member is embedded in the sliding groove, one end of the reset elastic member is connected to the slider, and the slider is embedded in the sliding groove and maintains a transverse sliding connection, and the slider passes through the interior of the sliding groove until it is embedded in the interior of the heat dissipation groove.

[0008] Furthermore, the locking and limiting clamp ring is composed of two parts, the lower part of the locking and limiting clamp ring is embedded in the interior of the insulator insulating sleeve and fixedly connected to the insulator insulating sleeve, the upper part of the locking and limiting clamp ring extends out of the insulator insulating sleeve, and the upper part of the locking and limiting clamp ring is provided with a notch, which is used for embedding the cable.

[0009] Furthermore, the insulator insulating cover is connected to the inside of the disc, the insulator insulating sleeve is initially embedded in the middle of the disc, and the insulator insulating sleeve slides left and right inside the insulator insulating cover and the disc.

[0010] Furthermore, the portion of the slider embedded in the heat dissipation slot is provided with a cleaning brush for wiping off dust, a filter screen for filtering dust is provided inside the heat dissipation slot, and the slider slides left and right inside the heat dissipation slot to clean the dust on the filter screen.

[0011] Furthermore, a locking assembly is fixedly connected to the inner wall of the insulating cover of the insulator, and the locking assembly includes a locking cover. The locking covers are arranged on both the left and right sides of the insulating cover of the insulator.

[0012] Furthermore, a sealing ring is connected to the inner wall of the locking cover, and the sealing ring is configured as a circular ring structure with an open top, and the locking cover and the sealing ring are fixedly connected.

[0013] Furthermore, the cable is embedded in a sealing ring, and the sealing ring is wrapped around the outer surface of the cable. The sealing ring is used to fix the cable embedded in the insulating cover and the disc body of the insulator.

[0014] Furthermore, the inner wall of the locking cover is arranged in an arc shape, the locking cover and the wrapping cover are matched, and the insulating sleeve of the insulator moves laterally so that the wrapping cover is embedded in the interior of the locking cover.

[0015] Furthermore, the locking cover has a larger opening on one side close to the insulating sleeve of the insulator and a smaller opening on the other side away from the insulating sleeve. The inner wall of the locking cover is configured as follows: Truncated cone shape.

[0016] Furthermore, the locking cover and the wrapping cover are provided in two groups, and the locking cover is in contact with only one group of the wrapping covers at the same time.

[0017] Compared with the prior art, the beneficial effects of the present invention include: the use of a sliding guide assembly in conjunction with a reset elastic member can automatically buffer and unload force when lateral displacement occurs due to conductor dancing, ice load or wind force, thereby avoiding the protective cover from falling off or dislocation caused by rigid connection, and ensuring continuous and effective coverage of live parts; secondly, the protective cover can automatically compensate for displacement and maintain insulation isolation under operational disturbances, thereby avoiding the safety hazard of traditional fixing methods exposing live bodies when accidentally touched, and providing double protection for power operation and maintenance; finally, the locking assembly automatically increases the clamping force on the cable during the displacement process through the synergistic effect of the truncated cone-shaped locking cover and the elastic wrapping cover, thereby forming a dynamic tightening effect, which not only ensures installation convenience but also significantly improves anti-vibration performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The disclosure of the present invention is described with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the accompanying drawings, the same reference numerals are used to refer to the same components. Among them:

[0019] Figure 1 The schematic diagram shows a three-dimensional structural diagram of an electrical insulator extension protective cover structure proposed in accordance with one embodiment of the present invention;

[0020] Figure 2 The schematic diagram shows the structure of the insulator insulation cover body and the connecting hanger plate of the electrical insulator extension protection cover structure proposed in one embodiment of the present invention;

[0021] Figure 3 The schematic diagram of the cross-sectional structure of the insulator cover body and the disc body of the extended protective cover structure of the electrical insulator proposed in one embodiment of the present invention is shown;

[0022] Figure 4 The schematic diagram shows the structure of the insulator insulation cover body and the locking cover of the electrical insulator extension protection cover structure proposed in one embodiment of the present invention;

[0023] Figure 5 The schematic diagram shows the structure of the locking limit clamp ring and the wrapping cover of the electrical insulator extension protective cover structure proposed in one embodiment of the present invention;

[0024] Figure 6The schematic diagram shows the structure of the locking limit clamp ring and the locking cover of the electrical insulator extension protective cover structure proposed in one embodiment of the present invention;

[0025] Figure 7 The schematic diagram shows the structure of the locking cover and the sealing ring of the extended protective cover structure of the electrical insulator proposed according to one embodiment of the present invention.

[0026] In the figure: 11, insulator insulating cover; 12, connecting hanger plate; 13, disk body; 14, heat dissipation groove; 2, sliding guide assembly; 21, guide groove; 22, limit rod; 23, insulator insulating sleeve; 24, locking limit clamp ring; 25, wrapping cover; 26, mounting block; 27, sliding groove; 28, reset elastic member; 29, slider; 3, locking assembly; 31, locking cover; 32, sealing ring. DETAILED DESCRIPTION

[0027] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the whole of the present invention or as a limitation or restriction to the technical solution of the present invention.

[0028] According to one embodiment of the present invention, Figure 1-7 The structure of the extended protective cover of the electrical insulator includes an insulator insulating cover body 11, the outer surface of the insulator insulating cover body 11 is connected to a disk body 13, and the disk body 13 is provided with a heat dissipation slot 14, and the heat dissipation slot 14 is used for ventilation and heat dissipation. In the power system of some railway vehicles, the insulator plays a key role in supporting and insulating the wires, and the protection of its live parts is directly related to the safety and stability of the train operation. Railway vehicles are faced with complex working conditions such as severe vibration, impact, temperature changes and aerodynamic effects during operation, which puts higher requirements on the performance of the insulator protective cover.

[0029] The insulators of the contact network of the electrified railway bear high voltage current for a long time, especially under high load operation or fault conditions, and local temperature rise may accelerate the aging of the insulating material. The heat dissipation groove 14 can remove heat through air convection to maintain the surface temperature of the insulator within a safe range. Secondly, under the temperature difference between day and night or in a humid environment, condensed water is formed on the inner wall of the insulator insulating cover 11 and the disc 13, which may cause dirty flash on the surface of the insulator. The heat dissipation groove 14 is provided on the disc 13 to accelerate the discharge of moisture and keep the inside dry. In addition, in the setting of the disc 13, the inner wall of the disc 13 is arc-shaped. When the outside air enters the inside of the disc 13 through the heat dissipation groove 14, it is guided by the arc surface, so that the air can be transported to the inside of the insulator insulating cover 11 along the guidance of its inner wall, and finally transported out by the openings on both sides of the insulator insulating cover 11. The disc 13 can also better guide the internal air to provide good heat dissipation.

[0030] In the actual application scenarios of insulator protective covers, their functions are remarkably diverse. On the one hand, under normal operating conditions, the protective cover can be tightly wrapped around the surface of the insulator, and by forming an all-round physical barrier, it can effectively resist adverse factors such as dirt, bird damage, and ultraviolet radiation in the environment, thereby ensuring the long-term stable operation of the insulator and maintaining the reliable insulation performance of the power system. On the other hand, in live working scenarios, insulator protective covers play a key role in insulation isolation. Workers can install them precisely in specific locations to effectively isolate live objects, build a safe working space for subsequent various construction operations, greatly improve the safety and convenience of live working, and ensure the efficient operation and maintenance of power facilities.

[0031] The inner wall of the insulator insulating cover 11 is provided with a sliding guide assembly 2, which includes a guide groove 21. The guide groove 21 is provided on the inner wall of the insulator insulating cover 11. A limiting rod 22 is embedded in the guide groove 21. An insulator insulating sleeve 23 is also embedded in the guide groove 21. A locking limiting clamp ring 24 is connected to the inner wall of the insulator insulating sleeve 23. The locking limiting clamp ring 24 is an annular structure formed by elastic members. The locking limiting clamp ring 24 consists of two parts. The lower half of the locking limiting clamp ring 24 is embedded in the insulator insulating sleeve 23 and is fixedly connected to the insulator insulating sleeve 23. The upper half of the locking limiting clamp ring 24 extends out of the insulator insulating sleeve 23. A notch is provided in the upper half of the locking limiting clamp ring 24. The notch is used for embedding the cable. The insulator insulating cover 11 and the inner part of the disk body 13 are connected. The insulator insulating sleeve 23 is initially embedded in In the middle position of the disk body 13, the insulator insulating sleeve 23 slides left and right inside the insulator insulating cover body 11 and the disk body 13, the outer surface of the locking limit clamp ring 24 is covered with a wrapping cover 25, the surface of the insulator insulating sleeve 23 is connected with a mounting block 26, the top of the mounting block 26 is connected with a slider 29, the inner wall of the disk body 13 is fixedly connected with a sliding groove 27, the interior of the sliding groove 27 is embedded with a reset elastic member 28, one end of the reset elastic member 28 is connected to the slider 29, the slider 29 is embedded in the interior of the sliding groove 27 and maintains a lateral sliding connection, the slider 29 penetrates the interior of the sliding groove 27 until it is embedded in the interior of the heat dissipation groove 14, the part of the slider 29 embedded in the heat dissipation groove 14 is provided with a cleaning brush for wiping dust, the interior of the heat dissipation groove 14 is provided with a filter net for filtering dust, and the slider 29 slides left and right inside the heat dissipation groove 14 to clean the dust on the filter net;

[0032] In the use of the protective cover, the cable needs to be embedded in the insulator insulating sleeve 23, and the cable is wrapped by the insulator insulating sleeve 23. After the insulator insulating sleeve 23 is embedded in the insulator insulating sleeve 23, the insulator is in the middle position of the insulator insulating sleeve 23. The insulator is wrapped by the insulator insulating sleeve 23 to increase the protection of the insulator. The specific operation is as follows:

[0033] First, the cable is inserted into the locking limit clamp ring 24 through the notch formed on the locking limit clamp ring 24. After the cable is inserted into the locking limit clamp ring 24, the locking limit clamp ring 24 clamps the cable surface to preliminarily clamp and fix the cable. After the cable is fixed, the position of the insulator on the cable is relatively limited.

[0034] In actual use, due to the diversity of the environment, branches break due to the influence of the environment, and the broken branches fall onto the cables. In addition, the influence of birds on the insulator insulating cover 11 will cause the position of the insulator insulating cover 11 to change. Long-term external interference causes the connection to become loose. In order to avoid this problem, a sliding guide assembly 2 is provided between the insulator insulating sleeve 23 and the insulator insulating cover 11. When birds fly onto the insulator insulating cover 11, the force will cause the insulator insulating cover 11 to be displaced laterally. When the insulator insulating cover 11 and the connecting hanger plate 12 move laterally, the heat dissipation groove 14 and the mounting block 26 slide laterally. When the mounting block 26 slides laterally, the slider 29 slides inside the reset elastic member 28, compresses the sliding groove 27 after sliding, and then loses the force. In this case, the sliding groove 27 starts to reset. When the locking limit clamp ring 24 is clamped on the cable, the positions of the locking limit clamp ring 24 and the insulator insulating sleeve 23 are limited. In order to release the force, the sliding groove 27 will push the reset elastic member 28 to move. When the reset elastic member 28 moves, it will drive the disc body 13 and the insulator insulating cover body 11 to reset. In this way, the release of the force is completed, and the applied force is stored and released again after the energy is stored, and a buffering effect is played. The insulator insulating cover body 11 and the disc body 13 are slidably connected with the insulator insulating sleeve 23 to release the force for buffering. In this way, the external force cannot directly act on the insulator insulating sleeve 23, so that the insulator insulating sleeve 23 can be better wrapped on the cable, and the two can still be more stably fixed;

[0035] In order to further improve the fixing effect, the locking assembly 3 and the sliding guide assembly 2 are matched, and the specific operation is as follows:

[0036] A locking assembly 3 is fixedly connected to the inner wall of the insulator insulating cover 11, and the locking assembly 3 includes a locking cover 31. The locking covers 31 are arranged on the left and right sides of the insulator insulating cover 11. A sealing ring 32 is connected to the inner wall of the locking cover 31. The sealing ring 32 is arranged to be a circular ring structure with an open top. The locking cover 31 and the sealing ring 32 are fixedly connected. The cable is embedded in the inside of the sealing ring 32. The sealing ring 32 is wrapped around the outer surface of the cable. The sealing ring 32 is used to fix the cable embedded in the insulator insulating cover 11 and the disk body 13. The inner wall of the locking cover 31 is arranged to be an arc shape. The locking cover 31 and the wrapping cover 25 are adapted. The insulator insulating sleeve 23 moves laterally so that the wrapping cover 25 is embedded in the inside of the locking cover 31. The side of the locking cover 31 close to the insulator insulating sleeve 23 has a large opening, and the side away from it has a small opening. The inner wall of the locking cover 31 is arranged to be The locking cover 31 and the wrapping cover 25 are truncated cone-shaped, and there are two groups of them. The locking cover 31 is in contact with only one group of the wrapping cover 25 at the same time.

[0037] When the force acts on the insulator insulating cover 11 and the disk 13, the insulator insulating cover 11 and the disk 13 are displaced. When the insulator insulating cover 11 and the disk 13 move, the locking cover 31 and the sealing ring 32 are driven to move. When the locking cover 31 moves toward the side of the insulator insulating sleeve 23, the locking cover 31 will continuously squeeze the wrapping cover 25, and the squeezing causes the wrapping cover 25 to deform inwardly. When the wrapping cover 25 is squeezed inwardly by the locking cover 31 and deformed inwardly, the clamping force clamped on the cable by the wrapping cover 25 becomes larger, so that the wrapping cover 25 can be better clamped on the cable. As the distance between the two ends increases, the pushing distance of the locking cover 31 toward the side of the wrapping cover 25 becomes larger, so that the degree of squeezing of the wrapping cover 25 by the locking cover 31 becomes greater.

[0038] In another actual environment, in order to increase the safety of operation during live operation, the staff covers the protective cover on the cable, which can prevent accidental touching of the live part and increase the safety of operation. After the live part of the cable is embedded into the interior of the locking limit clamp ring 24, the cable can be initially fixed by the locking limit clamp ring 24. During operation, if the staff accidentally touches and pushes the insulator insulating cover 11 and the disk body 13, the disk body 13 will be displaced. When the insulator insulating cover body 11 moves, it will drive the locking cover 31 and the sealing ring 32 to move. At this time, the locking cover 31 will squeeze the wrapping cover 25. Based on such an environment, the exposure of the live part can be reduced and the safety of operation can be increased. However, a part of the traditional protective cover is directly covered on the live position and is not fixed. In this way, the protective cover and the live part will be separated due to misoperation, which poses certain safety hazards. The other part is a rigid connection. When affected by the force, the force is directly transmitted to the cable, which will increase the load on the cable and may even cause the cable to break in severe cases.

[0039] The technical scope of the present invention is not limited to the contents in the above description. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of ​​the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. An electrical insulator extension shield structure, characterized in that: It comprises an insulator insulating cover, the outer surface of which is connected to a disk, and a heat dissipation groove is provided on the disk, and the heat dissipation groove is used for ventilation and heat dissipation; The inner wall of the insulator insulating cover is provided with a sliding guide assembly, and the sliding guide assembly includes a guide groove, and the guide groove is provided on the inner wall of the insulator insulating cover, and a limiting rod is embedded in the guide groove, and an insulator insulating sleeve is also embedded in the guide groove, and the inner wall of the insulator insulating sleeve is connected with a locking limiting clamp ring, and the locking limiting clamp ring is an annular structure formed by elastic members, and the outer surface of the locking limiting clamp ring is covered with a wrapping cover, and the surface of the insulator insulating sleeve is connected with a mounting block, and the top of the mounting block is connected with a slider, and the inner wall of the disk body is fixedly connected with a sliding groove, and a reset elastic member is embedded in the sliding groove, one end of the reset elastic member is connected to the slider, and the slider is embedded in the sliding groove and maintains a transverse sliding connection, and the slider passes through the interior of the sliding groove until it is embedded in the interior of the heat dissipation groove.

2. The electrical insulator extension protective cover structure according to claim 1, characterized in that: The locking and limiting clamp ring consists of two parts. The lower part of the locking and limiting clamp ring is embedded in the interior of the insulator insulating sleeve and is fixedly connected to the insulator insulating sleeve. The upper part of the locking and limiting clamp ring extends out of the insulator insulating sleeve. The upper part of the locking and limiting clamp ring is provided with a notch, which is used for embedding the cable.

3. The electrical insulator extension protective cover structure according to claim 2, characterized in that: The insulator insulating cover is connected to the inside of the disc body, the insulator insulating sleeve is embedded in the middle position of the disc body in an initial state, and the insulator insulating sleeve slides left and right inside the insulator insulating cover and the disc body.

4. The electrical insulator extension protective cover structure according to claim 1, characterized in that: The part of the slider embedded in the heat dissipation slot is provided with a cleaning brush for wiping off dust, the interior of the heat dissipation slot is provided with a filter net for filtering dust, and the slider slides left and right inside the heat dissipation slot to clean the dust on the filter net.

5. The electrical insulator extension protective cover structure according to claim 1, characterized in that: A locking assembly is fixedly connected to the inner wall of the insulator insulating cover, and the locking assembly comprises a locking cover. The locking covers are arranged on both the left and right sides of the insulator insulating cover.

6. The electrical insulator extension protective cover structure according to claim 5, characterized in that: A sealing ring is connected to the inner wall of the locking cover. The sealing ring is configured as a circular ring structure with an open top. The locking cover and the sealing ring are fixedly connected.

7. The electrical insulator extension protective cover structure according to claim 6, characterized in that: The cable is embedded in the interior of the sealing ring, and the sealing ring is wrapped around the outer surface of the cable. The sealing ring is used to fix the cable embedded in the insulating cover and the disc body of the insulator.

8. The electrical insulator extension protective cover structure according to claim 7, characterized in that: The inner wall of the locking cover is arranged in an arc shape, the locking cover and the wrapping cover are matched, and the insulating sleeve of the insulator moves laterally so that the wrapping cover is embedded in the interior of the locking cover.

9. The electrical insulator extension protective cover structure according to claim 8, characterized in that: The locking cover has a large opening on one side close to the insulator insulating sleeve and a small opening on the side away from the insulator. The inner wall of the locking cover is configured as follows: Truncated cone shape.

10. The electrical insulator extension shield structure according to claim 9, characterized in that: There are two groups of locking covers and wrapping covers in total, and the locking cover is in contact with only one group of wrapping covers at the same time.

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