High-voltage shielding case for 110KV and above intermediate joint

Abstract

The utility model discloses a high-voltage shielding case for 110kV and above intermediate joints, which comprises a split shielding case body formed by combining two same semi-ring plates, and further comprises a positioning mechanism, the positioning mechanism comprises a positioning circular ring, an annular slot is arranged on the positioning circular ring, and the positioning circular ring is connected with the annular slot. Inserting semicircular plates are arranged at the two ends of each semi-ring plate, and the inserting semicircular plates on the two semi-ring plates are matched with the annular inserting grooves in the positioning rings in an inserting mode; when the split shielding case body is installed, the two semi-ring plates are in butt joint with each other, so that the ends of the two semi-ring plates are aligned, and then the annular slots in the positioning rings and the insertion semicircular plates on the semi-ring plates are in insertion fit with each other, so that the positioning rings can position the split shielding case body. The phenomenon that the split shielding case body shifts is avoided, the installation stability of the split shielding case body is improved, and the shielding effect of the split shielding case body is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of cable accessories, in particular to a high-voltage shielding cover for intermediate joints of 110KV and above. Background Art

[0002] As the demand for electricity grows, 110kV cable connectors are becoming increasingly common, necessitating a robust connection method to ensure proper cable operation. The intermediate connector shield is a highly effective connector component, providing shielding, isolation, and support during the connection process.

[0003] For example, patent number CN202949202U, published on May 22, 2013, and titled "Connector Body of Cross-Linked Cable Intermediate Joint and Novel Intermediate Joint Composed Thereof," discloses a connector body for a cross-linked cable intermediate joint and a novel intermediate joint composed thereof. This high-voltage cross-linked cable intermediate joint comprises an insulating layer, a stress cone and a high-voltage shielding tube disposed within the insulating layer, a cable conductor connection fitting for electrically connecting two cables, and a high-voltage shielding cover disposed at the connection between the two cables. The connector body is characterized by grooves formed at the ends of the insulation layers of the two cables, with the ends of the high-voltage shielding cover respectively latching into the grooves at the ends of the insulation layers of the two cables. This connector body prevents operational accidents caused by cable insulation retraction, ensuring safe operation. This connector body can also be formed into a straight-through intermediate joint or an insulated intermediate joint.

[0004] In the prior art, when installing the metal shielding cover of the intermediate joint of 110KV and above, SC tape is usually wrapped around the two ends of two prefabricated metal shielding covers for positioning and installation. However, this installation method often causes the metal shielding cover to shift, affecting the continuity and shielding effect of the metal shielding cover. Summary of the Invention

[0005] The purpose of the utility model is to provide a high-voltage shielding cover for intermediate joints of 110KV and above, so as to solve the above-mentioned problems in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-voltage shielding cover for intermediate joints of 110KV and above, comprising a split shielding cover body, the split shielding cover body being composed of two identical semi-ring plates, and also comprising a positioning mechanism, the positioning mechanism comprising a positioning ring, the positioning ring being provided with an annular slot, both ends of the semi-ring plate being plug-in semi-circular plates, the plug-in semi-circular plates on the two semi-ring plates being plugged into and matched with the annular slots on the positioning ring.

[0007] As mentioned above, heat dissipation holes are provided on the semi-annular plate.

[0008] As mentioned above, each end portion of the two semi-ring plates is provided with a groove, and a positioning member is installed on the inner wall of each groove.

[0009] As mentioned above, the top and bottom ends of each positioning member are semicircular groove structures, and one end of each positioning member is connected to the inner wall of the groove.

[0010] As mentioned above, the other end of each positioning member is a pointed end structure.

[0011] As mentioned above, two straight grooves are symmetrically provided on the positioning ring, and two L-shaped rods are symmetrically installed in each of the straight grooves.

[0012] As mentioned above, the two L-shaped rods in each straight groove are combined to form a rectangular shape.

[0013] As mentioned above, one end of each L-shaped rod is rotatably mounted in the straight groove, and the other end of each L-shaped rod is rotatably mounted with a locking wheel.

[0014] As mentioned above, each of the abutting wheels is used to abut against its corresponding semicircular groove structure.

[0015] As mentioned above, each of the L-shaped rods is connected to the inner wall of the corresponding straight groove via an elastic member.

[0016] The beneficial effect of the present invention is that: when the split shielding cover body is installed, the two semi-ring plates are docked with each other so that the ends of the two semi-ring plates are aligned, and then the annular slot on the positioning ring and the plug-in semi-circular plate on the semi-ring plate are plugged into each other, so that the positioning ring can position the split shielding cover body, and the split shielding cover body will not be shifted, thereby improving the stability of the installation of the split shielding cover body and will not affect the shielding effect of the split shielding cover body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of a partial cross-sectional structure of an embodiment provided by the utility model;

[0019] Figure 2 A schematic diagram of a partial three-dimensional structure of another embodiment provided by the utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the semi-ring plate of the utility model;

[0021] Figure 4 For this utility model Figure 3 Schematic diagram of the cross-section structure;

[0022] Figure 5 For this utility model Figure 4 Schematic diagram of the partially enlarged cross-sectional structure at M.

[0023] Description of reference numerals:

[0024] 1. Split shielding cover body; 2. Semi-ring plate; 3. Positioning ring; 4. Ring slot; 5. Inserting semi-circular plate; 6. Heat dissipation hole; 7. Groove; 8. Positioning piece; 9. Semi-circular groove structure; 10. Straight groove; 11. L-shaped rod; 12. Clamping wheel; 13. Elastic piece. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] like Figures 1 to 5 As shown, an embodiment of the utility model provides a high-voltage shielding cover for intermediate joints of 110KV and above, including a split shielding cover body 1, which is composed of two identical semi-ring plates 2, and also includes a positioning mechanism, which includes a positioning ring 3, and a ring slot 4 is provided on the positioning ring 3. Both ends of the semi-ring plate 2 are plug-in semi-circular plates 5, and the plug-in semi-circular plates 5 on the two semi-ring plates 2 are plugged into and matched with the ring slot 4 on the positioning ring 3.

[0027] Specifically, the intermediate joint is a joint for connecting cable parts. After the intermediate joint is connected to the cable parts, it needs to be shielded. The split shielding cover body 1 is a cover body for shielding the intermediate joint. The split shielding cover body 1 can resist the interference of electrical pressure, reduce signal interference, and ensure the stability of power quality. The split shielding cover body 1 is a circular cover structure formed by docking two identical semi-ring plates 2. The end section of the semi-ring plate 2 is a semicircular surface. The semi-ring plate 2 is half of a circular tube. The two semi-ring plates 2 can be combined into an integral shielding cover. The semi-ring plate 2 is provided with a heat dissipation hole 6. The heat dissipation hole 6 can disperse the heat generated in the middle joint to prevent the temperature inside the shielding cover from being too high. The end of the plug-in semicircular plate 5 is a semicircular ring structure. When installing the split shielding cover body 1, the two semi-ring plates 2 are docked with each other so that the ends of the two semi-ring plates 2 are aligned, and then the annular slot 4 on the positioning ring 3 and the plug-in semicircular plate 5 on the semi-ring plate 2 are plugged into each other, so that the positioning ring 3 can position the split shielding cover body 1, and the split shielding cover body 1 will not shift, thereby improving the stability of the installation of the split shielding cover body 1 and will not affect the shielding effect of the split shielding cover body 1.

[0028] In the prior art, when installing the metal shielding cover of the intermediate joint of 110KV and above, SC tape is usually wrapped around the two ends of two prefabricated metal shielding covers for positioning and installation. However, this installation method often causes the metal shielding cover to shift, affecting the continuity and shielding effect of the metal shielding cover.

[0029] The beneficial effect of the present invention is that: when the split shielding cover body 1 is installed, the two semi-ring plates 2 are connected to each other so that the ends of the two semi-ring plates 2 are aligned, and then the annular slot 4 on the positioning ring 3 and the plug-in semi-circular plate 5 on the semi-ring plate 2 are plugged into each other, so that the positioning ring 3 can position the split shielding cover body 1, and the split shielding cover body 1 will not be displaced, which improves the stability of the installation of the split shielding cover body 1 and will not affect the shielding effect of the split shielding cover body 1.

[0030] In another embodiment provided by the present invention, a groove 7 is provided at each end of the two semi-ring plates 2, and a positioning piece 8 is installed on the inner wall of each groove 7; the top and bottom ends of each positioning piece 8 are semicircular groove structures 9, and one end of each positioning piece 8 is connected to the inner wall of the groove 7; the other end of each positioning piece 8 is a pointed structure; two straight grooves 10 are symmetrically provided on the positioning ring 3, and two L-shaped rods 11 are symmetrically installed in each straight groove 10; the two L-shaped rods 11 in each straight groove 10 are combined into a rectangular shape; one end of each L-shaped rod 11 is rotatably installed in the straight groove 10, and the other end of each L-shaped rod 11 is rotatably installed with a clamping wheel 12; each of the clamping wheels 12 is used to abut against each other with its corresponding semicircular groove structure 9; each L-shaped rod 11 is connected to the inner wall of its corresponding straight groove 10 by an elastic piece 13.

[0031] Specifically, when installing the split shielding cover body 1, the two semi-ring plates 2 are butted against each other so that the ends of the two semi-ring plates 2 are aligned, and then the L-shaped rod 11 on the positioning ring 3 is inserted into the groove 7. When the L-shaped rod 11 drives the tightening wheel 12 to abut against the positioning member 8, the tightening wheels 12 on the two L-shaped rods 11 in the same straight groove 10 are respectively pressed against the two sides of the tip structure on the positioning member 8. Under the tightening action of the positioning member 8, the positioning member 8 tightens the tightening wheel 12, so that the tightening wheel 12 is squeezed by the positioning member 8 and drives the L-shaped rod 11 to rotate away from one end. The L-shaped rod 11 presses against the elastic member 13 (the elastic member 13 is capable of telescopic and retractable compression). The original component in the position, preferably a spring) is squeezed to perform an extrusion operation, so that the elastic member 13 is in a compressed state. When the clamping wheel 12 rolls into the semicircular groove structure 9 on the positioning member 8, under the rebound action of the elastic member 13, the elastic member 13 drives the L-shaped rod 11 to rotate toward one end close to each other, so that the L-shaped rod 11 drives the clamping wheel 12 to press tightly against the semicircular groove structure 9, so that the semicircular groove structure 9 limits the clamping wheel 12, so that the semicircular groove structure 9, the clamping wheel 12 and the L-shaped rod 11 connect the positioning ring 3 with the two semi-ring plates 2, so that the positioning ring 3 performs a stable positioning operation on the two semi-ring plates 2, so that the two semi-ring plates 2 will not rotate during use.

[0032] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-voltage shielding cover for intermediate joints of 110KV and above, comprising a split shielding cover body, wherein the split shielding cover body is composed of two identical half-ring plates, characterized in that: It also includes a positioning mechanism, which includes a positioning ring with an annular slot. Both ends of the semi-ring plate are plug-in semi-circular plates, and the plug-in semi-circular plates on the two semi-ring plates are plugged into and matched with the annular slots on the positioning ring.

2. A high-voltage shielding cover for intermediate joints of 110KV and above according to claim 1, characterized in that: The semi-ring plate is provided with heat dissipation holes.

3. The high-voltage shielding cover for intermediate joints of 110KV and above according to claim 1, characterized in that: A groove is respectively formed at the two ends of the two semi-ring plates, and a positioning piece is respectively installed on the inner wall of each groove.

4. A high voltage shielding cover for intermediate joints of 110KV and above according to claim 3, characterized in that: The top and bottom ends of each positioning member are semicircular groove structures, and one end of each positioning member is connected to the inner wall of the groove.

5. A high voltage shielding cover for intermediate joints of 110KV and above according to claim 4, characterized in that: The other end of each positioning member is a pointed end structure.

6. The high-voltage shielding cover for intermediate joints of 110KV and above according to claim 4, characterized in that: Two straight grooves are symmetrically provided on the positioning ring, and two L-shaped rods are symmetrically installed in each of the straight grooves.

7. A high voltage shielding cover for intermediate joints of 110KV and above according to claim 6, characterized in that: The two L-shaped rods in each straight groove are combined to form a rectangular shape.

8. The high-voltage shielding cover for intermediate joints of 110KV and above according to claim 6, characterized in that: One end of each L-shaped rod is rotatably mounted in the straight groove, and the other end of each L-shaped rod is rotatably mounted with a tightening wheel.

9. The high-voltage shielding cover for intermediate joints of 110KV and above according to claim 8, characterized in that: Each of the abutting wheels abuts against its corresponding semicircular groove structure for use.

10. The high-voltage shielding cover for intermediate joints of 110KV and above according to claim 6, characterized in that: Each of the L-shaped rods is connected to the inner wall of the corresponding straight groove via an elastic member.

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