Insulating sheath of high-voltage isolating switch mechanism

Abstract

The utility model discloses an insulating sheath for a high-voltage isolating switch mechanism, which relates to the technical field of high-voltage isolating switches and comprises a protective cover, protective cylinders are arranged at two ends of the protective cover, an inner cavity of the protective cover is communicated with inner cavities of the protective cylinders, necks are arranged at two ends of the protective cylinders, and the necks are communicated with the protective cylinders. A groove is formed in the axial middle position of the lower end of the protective cover, the lower end of the protective cylinder and the lower end of the necking opening, connecting edges are arranged at the positions, on the two sides of the groove, of the lower end of the protective cover, the lower end of the protective cylinder and the lower end of the necking opening, connecting strips are arranged at the lower ends of the connecting edges, and connecting claws are arranged at the positions, on the two sides of the connecting edges, of the upper ends of the connecting strips. Connecting holes are formed in the positions, corresponding to the connecting claws, of the connecting edges, the connecting claws penetrate through the connecting edges through the connecting holes, the connecting edges are clamped and fixed through the connecting strips, the risk that the buckles crack and fall off after long-time use is avoided, and the protection effect of the sheath is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage disconnectors, and particularly relates to an insulating sheath for a high-voltage disconnector mechanism. Background Technique

[0002] The insulating sheath of a high-voltage disconnector is an important component to ensure the safe operation of the high-voltage disconnector. It is mainly made of materials with excellent insulation performance, such as silicone rubber, etc. It tightly wraps around the conductive part of the disconnector, effectively isolating the live part from the outside world. This sheath can prevent personnel from accidentally touching the live body, greatly improving the safety around the equipment. In a complex electrical environment, it can resist the erosion of dust, moisture, chemical substances, etc. on the insulation performance of the disconnector, reduce the occurrence of leakage and flashover phenomena, thereby extending the service life of the disconnector and ensuring the stable and reliable operation of the high-voltage power system. There is a tie rod connection structure in the high-voltage disconnector, and an insulating sheath needs to be set at the connection position. The traditional sheath is usually a split structure connected by a buckle. After long-term use, this structure has the risk of cracking and buckle detachment, affecting the protection effect of the sheath. Content of the Utility Model

[0003] The purpose of the utility model is to provide an insulating sheath for a high-voltage disconnector mechanism to solve the problem that the traditional sheath is usually a split structure connected by a buckle, and this structure has the risk of cracking and buckle detachment after long-term use, affecting the protection effect of the sheath as mentioned in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: An insulating sheath for a high-voltage disconnector mechanism includes a protective cover. Both ends of the protective cover are provided with protective cylinders. The inner cavity of the protective cover is connected in communication with the inner cavity of the protective cylinder. Both ends of the protective cylinder are provided with neckings. An opening groove is axially formed at the middle position of the lower ends of the protective cover, the protective cylinder and the neckings. Connection edges are provided on both sides of the opening groove at the lower ends of the protective cover, the protective cylinder and the neckings. A connection strip is provided at the lower end of the connection edge. Connection claws are provided on both sides of the connection edge at the upper end of the connection strip. Connection holes are formed at the positions corresponding to the connection claws on the connection edge. The connection claws penetrate through the connection edge through the connection holes.

[0005] Preferably, the protective cover is a cuboid box structure made of silicone rubber material, the protective cylinder is a cylindrical structure made of silicone rubber material, the outer diameter of the protective cylinder is the same as the length of the short side of the protective cover, the lower end of the protective cylinder corresponds to the lower end of the protective cover, and the upper end of the protective cover extends above the protective cylinder.

[0006] Preferably, the cross-section of the connecting strip is in a U-shaped structure. The connecting strip clamps and fixes the connecting edge. The connecting claws are staggered on both sides along the upper edge of the U-shaped structure of the connecting strip, and the connecting claws penetrate through the connecting edge and abut against the outer surface of the other side of the connecting strip.

[0007] Preferably, the necking is arranged in a hollow frustum structure at both outer ends of the protective cylinder, and the necking is connected and communicated with the inner cavity of the protective cylinder.

[0008] Preferably, a guiding wedge is provided at the outer end of the connecting claw.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows: Instead of the split structure sheath connected by a buckle in the traditional way, the upper end of the sheath is designed as a closed structure, and a slotted opening is provided at the lower end of the sheath. The connecting strip clamps and fixes the connecting edge, avoiding the risk of the buckle cracking and falling off after long-term use, and ensuring the protective effect of the sheath. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is an axonometric view of the main structure of the present utility model;

[0011] Figure 2 is an axonometric exploded view of the main structure of the present utility model;

[0012] Figure 3 is a front sectional view of the main structure of the present utility model;

[0013] Figure 4 is a front view of the main structure of the present utility model;

[0014] Figure 5 is a left view of the main structure of the present utility model.

[0015] In the figure: 1 - protective cover, 2 - protective cylinder, 3 - necking, 4 - slotted opening, 5 - connecting edge, 6 - connecting strip, 7 - connecting claw, 8 - connecting hole, 9 - guiding wedge. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] Please refer to Figures 1-5The utility model provides an insulating sheath of a high-voltage disconnecting switch mechanism, comprising a protective cover 1, protective tubes 2 are provided at both ends of the protective cover 1, the inner cavity of the protective cover 1 is communicated with the inner cavity of the protective tube 2, and constrictions 3 are provided at both ends of the protective tube 2, and a groove 4 is provided at the axial middle position of the lower ends of the protective cover 1, the protective tube 2 and the constriction 3, and a connecting edge 5 is provided at the lower ends of the protective cover 1, the protective tube 2 and the constriction 3 and on both sides of the groove 4, a connecting strip 6 is provided at the lower end of the connecting edge 5, and connecting claws 7 are provided at the upper end of the connecting strip 6 and on both sides of the connecting edge 5, and a connecting hole 8 is provided on the connecting edge 5 at a position corresponding to the connecting claw 7, and the connecting claw 7 passes through the connecting edge 5 through the connecting hole 8.

[0018] When in use, protective tubes 2 are provided at both ends of the protective sleeve 1 through an integrated molding process. The staff opens the protective sleeve 1 and the protective tube 2 from the lower end along the groove 4 through the groove 4, so that the pull rod and the connecting structure can extend from the position of the groove 4 into the interior of the protective sleeve 1 and the protective tube 2. Subsequently, the protective sleeve 1 and the protective tube 2 are closed along the groove 4, the necking 3 is pressed against the pull rod, and the protective tube 2 and the pull rod are sealed and protected through the necking 3. The connecting edges 5 on both sides of the groove 4 are closed, and the connecting strip 6 is set to both sides of the lower end of the connecting edge 5. The connecting claws 7 on the connecting strip 6 are extended into the interior of the connecting hole 8, and the connecting strip 6 is pinched. The connecting claws 7 pass through the connecting hole 8 and extend to the other side of the connecting edge 5. Subsequently, the connecting claws 7 are bent and pressed against the connecting strip 6 to clamp and fix the connecting edge 5, thereby ensuring the firmness of the connection between the sleeve and the pull rod and the connecting structure.

[0019] The protective cover 1 is a rectangular box structure made of silicone rubber, and the protective tube 2 is a cylindrical structure made of silicone rubber. The outer diameter of the protective tube 2 is consistent with the short side length of the protective cover 1. The lower end of the protective tube 2 is arranged corresponding to the lower end of the protective cover 1, and the upper end of the protective cover 1 extends to the top of the protective tube 2. The protective cover 1 and the protective tube 2 are made of silicone rubber to ensure the insulation protection effect of the sheath on the pull rod and the pull rod connection position, and the protective cover 1 and the protective tube 2 are designed to be separated, and a larger installation space is provided through the pull rod connection position outside the protective cover 1.

[0020] The cross-section of the connecting strip 6 is a U-shaped structure, and the connecting strip 6 clamps and fixes the connecting edge 5. The connecting claws 7 are staggered on both sides of the upper edge of the U-shaped structure of the connecting strip 6. After the connecting claws 7 penetrate the connecting edge 5, they rest on the outer surface of the other side of the connecting strip 6. By bending the connecting strip 6 itself, the connecting edge 5 is clamped and fixed, and the connecting claws 7 penetrate the connecting hole 8 and extend to the other side of the connecting edge 5. Then, the connecting claws 7 are bent and rested on the connecting strip 6, thereby improving the clamping firmness of the connecting strip 6 to the connecting edge 5.

[0021] The necking 3 is arranged in a hollow frustum structure at both outer ends of the protective cylinder 2, and the necking 3 is connected to communicate with the inner cavity of the protective cylinder 2. By providing the necking 3 with an inner diameter smaller than that of the protective cylinder 2, the sealing protection between the protective cylinder 2 and the pull rod is carried out.

[0022] A guiding wedge 9 is provided at the outer end of the connecting claw 7. By providing the guiding wedge 9, it is convenient for the connecting claw 7 to penetrate through the connecting hole 8.

[0023] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An insulating sheath for a high-voltage disconnector mechanism, characterized in that: It includes a protective cover (1), with protective cylinders (2) provided at both ends of the protective cover (1). The inner cavity of the protective cover (1) is connected in communication with the inner cavity of the protective cylinder (2). Reduced openings (3) are provided at both ends of the protective cylinder (2). A slot (4) is formed at the axial middle position of the lower ends of the protective cover (1), the protective cylinder (2), and the reduced opening (3). Connecting edges (5) are provided on both sides of the slot (4) at the lower ends of the protective cover (1), the protective cylinder (2), and the reduced opening (3). A connecting strip (6) is provided at the lower end of the connecting edge (5). Connecting claws (7) are provided on both sides of the connecting strip (6) at the upper end of the connecting strip (6). Connecting holes (8) are formed at positions on the connecting edge (5) corresponding to the connecting claws (7). The connecting claws (7) penetrate through the connecting edge (5) through the connecting holes (8).

2. The insulating sheath of a high-voltage disconnector mechanism according to claim 1, characterized in that: The protective cover (1) is a rectangular box structure made of silicone rubber. The protective cylinder (2) is a cylindrical structure made of silicone rubber. The outer diameter of the protective cylinder (2) is the same as the length of the short side of the protective cover (1). The lower end of the protective cylinder (2) is correspondingly arranged with the lower end of the protective cover (1). The upper end of the protective cover (1) extends above the protective cylinder (2).

3. The insulating sheath for a high-voltage disconnector mechanism according to claim 1, characterized in that: The cross-section of the connecting strip (6) is a U-shaped structure. The connecting strip (6) clamps and fixes the connecting edge (5). The connecting claws (7) are staggered on both sides of the upper edge of the U-shaped structure of the connecting strip (6). After the connecting claws (7) penetrate through the connecting edge (5), they abut against the outer surface of the other side of the connecting strip (6).

4. The insulating sheath of a high-voltage disconnector mechanism according to claim 1, characterized in that: The reduced opening (3) is arranged in a hollow frustum structure at both outer ends of the protective cylinder (2). The reduced opening (3) is connected in communication with the inner cavity of the protective cylinder (2).

5. The insulating sheath of a high-voltage disconnector mechanism according to claim 1, characterized in that: A guiding wedge (9) is provided at the outer end of the connecting claw (7).

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