Hard protective cover for cable transition connection device

Abstract

The utility model provides a kind of hard protective cover of cable transition connecting device, for the insulation protection of cable transition connecting device, comprising: cylindrical cover body, it is arranged at the outside of connecting plate;And two installation operation blocks, respectively equipped with operating jack, wherein, cylindrical cover body is closed in upper end and open in lower end, is equipped with output lead hole, lightning arrester hole, ground rod hole and installation operation opening, output lead hole is located in the central part of the top wall of cylindrical cover body, lightning arrester hole and ground rod hole are respectively located in the two sides of the side wall of cylindrical cover body, installation operation opening includes first vertical opening part located in the side wall of cylindrical cover body and radial opening part located in the top wall of cylindrical cover body, first vertical opening part passes through the center position of lightning arrester hole, radial opening part passes through the center position of output lead hole and one end is connected with the upper end of first vertical opening part and communicates, two installation operation blocks are located above lightning arrester hole and symmetrically set in the edge of first vertical opening part two sides.

Description

Technical Field

[0001] This utility model belongs to the field of power equipment technology, and specifically relates to a rigid protective cover for a cable transition connection device. Background Technology

[0002] In power lines, cable transition connections are important components of distribution lines. These connections are fixedly installed on the crossarms at the top of power poles. Due to their suitable height and stable structure, they often become places for birds to perch and nest.

[0003] Currently, cable transition connection devices typically include surge arresters, connecting plates, input leads, output leads, and grounding rods. One end of the surge arrester is fixed to a crossarm; the connecting plate is vertically fixed to the other end of the surge arrester; the upper end of the input lead and the lower end of the output lead are connected to the lower and upper ends of the connecting plate, respectively; one end of the grounding rod is connected to the connecting plate, and the other end extends away from the surge arrester for grounding during power line maintenance.

[0004] Although the surge arrester's casing insulation, input leads, and output leads are made of insulated wires, the connecting plate, grounding rod, and the connection points between the connecting plate and the input and output leads are all relatively exposed. If birds nest in these areas, it can cause short circuits between these exposed parts and the crossarm, resulting in power line tripping faults and seriously affecting the safe and reliable operation of the power lines.

[0005] While existing cable transition connection device protective covers made of soft insulating rubber can provide good insulation for cable transition connections and effectively prevent short circuit tripping caused by bird nests, these covers are relatively soft. Furthermore, to ensure operator safety, they require manual installation by climbing the pole after a power outage. Therefore, they can only be installed during power outages, such as for maintenance or new construction of power lines.

[0006] However, due to increasingly stringent requirements for power supply reliability from users, large-scale power outages are not possible to carry out this installation work once power lines are in normal operation. Therefore, developing a rigid protective cover that allows operators to easily and reliably install the cable transition connection device while the power line is energized, without having to climb the pole, has become a pressing technical challenge for those skilled in the art. Utility Model Content

[0007] To address the shortcomings of the existing technology, the purpose of this utility model is to provide a rigid protective cover for a cable transition connection device.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] This utility model provides a rigid protective cover for a cable transition connection device, used to provide insulation protection for a cable transition connection device including a surge arrester, a connecting plate, an input lead, an output lead, and a grounding rod. It features a cylindrical cover body for mounting outside the connecting plate; and two mounting operation blocks, each with an operation insertion hole for inserting two support columns of a mounting operation rod. The cylindrical cover body is closed at the top and open at the bottom, and includes an output lead hole, a surge arrester hole, a grounding rod hole, and an installation operation opening. The output lead hole is located at the center of the top wall of the cylindrical cover body, while the surge arrester hole and the grounding rod hole are located on opposite sides of the side walls of the cylindrical cover body. The installation operation opening includes a first vertical opening on the side wall of the cylindrical cover body and a radial opening on the top wall of the cylindrical cover body. The first vertical opening passes through the center of the surge arrester hole, and the radial opening passes through the center of the output lead hole, with one end connected and communicating with the upper end of the first vertical opening. The two mounting operation blocks are located above the surge arrester hole and symmetrically arranged at the edges on both sides of the first vertical opening.

[0010] The rigid protective cover of the cable transition connection device provided by this utility model may also have the following features: it further includes a cover plate, which is provided corresponding to the first vertical opening, wherein the upper end of the cover plate is rotatably connected to the upper end of the cylindrical cover.

[0011] The rigid protective cover of the cable transition connection device provided by this utility model may also have the following features: one side of the cover plate is provided with a surge arrester notch that matches the surge arrester hole and an installation operation block notch that matches the installation operation block.

[0012] The rigid protective cover of the cable transition connection device provided by this utility model may also have the following features: a rotating joint is provided on the inner side of the other side of the cover plate, and a joint hole matching the rotating joint is provided at the edge of the cylindrical cover body located on the side of the first vertical opening. The cover plate is rotatably connected to the cylindrical cover body by means of being movably installed in the joint hole through the rotating joint.

[0013] The rigid protective cover of the cable transition connection device provided by this utility model may also have the following features: a limiting protrusion is provided on each side of the first vertical opening on the cylindrical cover body, one limiting protrusion is located between the connector hole and the installation operation block, and the other limiting protrusion is located below the surge arrester hole, and the cover plate is provided with two limiting holes corresponding to the two limiting protrusions respectively.

[0014] The rigid protective cover of the cable transition connection device provided by this utility model may also have the following features: wherein the cylindrical cover is composed of a cylindrical body and a conical body arranged in a bottom-up manner, and the installation operation opening further includes a second vertical opening located on the side wall of the conical body and connected and communicating with the other end of the radial opening. The second vertical opening extends downward from the other end of the radial opening to the connection between the conical body and the cylindrical body.

[0015] The rigid protective cover of the cable transition connection device provided by this utility model may also have the following feature: the installation operation opening further includes a third vertical opening on the cylindrical body, which extends downward from a preset position directly below the grounding rod hole to the lower end face of the cylindrical body.

[0016] The rigid protective cover of the cable transition connection device provided by this utility model may also have the following features: wherein the cylindrical cover is a transparent polyurethane cover and the installation operation block is a transparent polyurethane block.

[0017] The rigid protective cover of the cable transition connection device provided by this utility model may also have the following feature: the cylindrical cover and the mounting block are integrally formed.

[0018] The rigid protective cover of the cable transition connection device provided by this utility model may also have the following feature: the cover plate is a transparent polycarbonate plate.

[0019] Functions and effects of utility models

[0020] The rigid protective cover for the cable transition connection device according to this utility model has a cylindrical cover and two installation operation blocks. The cylindrical cover is provided with an output lead hole, a surge arrester hole, a grounding rod hole, and an installation operation opening. The output lead hole is located in the center of the top wall of the cylindrical cover, and the surge arrester hole and the grounding rod hole are located on both sides of the side wall of the cylindrical cover. The installation operation opening includes a first vertical opening on the side wall of the cylindrical cover and a radial opening on the top wall of the cylindrical cover. The two installation operation blocks are located above the surge arrester hole and are symmetrically arranged on both sides of the edge of the first vertical opening. Each block is provided with an operation insertion hole, which allows the two support columns of the installation operation rod to be inserted for installation. Therefore, this utility model not only has a good insulation protection effect, but also allows the operator to install the protective cover onto the cable transition connection device by means of the installation operation rod when the power line is energized and without climbing the pole. Moreover, it is convenient to operate and safe and reliable. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the rigid protective cover of the cable transition connection device in an embodiment of this utility model;

[0022] Figure 2 This is a three-dimensional structural diagram of the rigid protective cover of the cable transition connection device in an embodiment of this utility model;

[0023] Figure 3 This is a three-dimensional structural diagram of the cylindrical cover and the installation operation block in an embodiment of this utility model;

[0024] Figure 4 This is a three-dimensional structural diagram of the cover plate in an embodiment of this utility model; and

[0025] Figure 5 This is a three-dimensional structural diagram of the rigid protective cover of the cable transition connection device in an embodiment of this utility model. Detailed Implementation

[0026] The following will further explain the concept, specific structure and technical effects of this utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of this utility model.

[0027] like Figure 1 and Figure 2 As shown, in this embodiment, the rigid protective cover 10 of the cable transition connection device is used to protect the cable transition connection device (not shown in the figure) including the surge arrester, connecting plate, input lead, output lead and grounding rod, and includes a cylindrical cover 11, two installation operation blocks 12 and a cover plate 13.

[0028] like Figures 1 to 3 As shown, the cylindrical cover 11 is used to be installed outside the connecting plate. The whole is closed at the top and open at the bottom, and is composed of a cylindrical body 11a and a conical body 11b arranged from bottom to top.

[0029] The cylindrical cover 11 is provided with an output lead hole 111, a surge arrester hole 112, a grounding rod hole 113, and an installation and operation opening 114.

[0030] The output lead hole 111 is located at the center of the top wall of the conical cylinder 11b, and is used to allow the output lead to extend upward to the outside of the cylindrical cover 11.

[0031] The surge arrester hole 112 and the grounding rod hole 113 are located on both sides of the side wall of the cylindrical body 11a.

[0032] The surge arrester hole 112 has a shape and size that matches the surge arrester, and is used to snap onto the surge arrester, thereby securing the entire protective cover to the surge arrester.

[0033] The grounding rod hole 113 is used to allow the grounding rod to extend to the outside of the cylindrical cover 11 so as to facilitate grounding by connecting an external wire during maintenance of the cable transition connection device.

[0034] The installation operation opening 114 includes a first vertical opening 114a, a radial opening 114b, and a second vertical opening 114c that are sequentially connected and communicate with each other.

[0035] The first vertical opening 114a is located on the side wall of the cylindrical cover 11 and passes through the center of the lightning arrester hole 112, extending upward from the lower end face of the cylindrical body 11a to the upper end face of the conical body 11b.

[0036] The radial opening 114b is located on the top wall of the conical cylinder 11b and passes through the center of the output lead hole 111. One end of the radial opening is connected to and communicates with the upper end of the first vertical opening.

[0037] The second vertical opening 114c is located on the side wall of the conical cylinder 11b and is connected to and communicates with the other end of the radial opening 114b. Specifically, the second vertical opening 114c extends downward from the other end of the radial opening 114b to the connection between the conical cylinder 11b and the cylinder 11a.

[0038] like Figures 1 to 3 As shown, two mounting operation blocks 12 are located above the surge arrester hole 112 and are symmetrically arranged on both sides of the edge of the first vertical opening 114a. In this embodiment, the mounting operation blocks 12 and the cylindrical cover 11 are integrally formed.

[0039] Each installation operation 12 is provided with an operation socket 12a for inserting two support columns on the installation operation rod.

[0040] like Figure 1 , Figure 2 as well as Figure 4 As shown, the cover plate 13 is disposed corresponding to the upper middle part of the first vertical opening 114a, and is used to close the upper middle part of the first vertical opening 114a.

[0041] The upper end of the cover plate 13 is rotatably connected to the upper end of the cylindrical cover 11. Specifically, the connection structure is as follows: a rotating joint 131 is provided on the inner side of one side of the cover plate 13; a joint hole 115 matching the rotating joint 131 is provided on the edge of the conical cylinder 11b located on the side of the first vertical opening 114a. This joint hole 115 is located at the connection between the conical cylinder 11b and the cylindrical body 11a. Thus, the cover plate 13 and the cylindrical cover 11 are rotatably connected to the cylindrical cover 11 by means of the rotating joint 131 being movably installed within the joint hole 115.

[0042] The other side of the cover plate 13 is provided with a surge arrester notch 132 that matches the surge arrester hole 112 and an installation operation block notch 133 that matches the installation operation block 12.

[0043] In this embodiment, a locking structure is also provided between the cover plate 13 and the cylindrical cover 11. Specifically, the locking structure is as follows: a limiting protrusion 116 is provided on the cylindrical cover 11 at the edges on both sides of the first vertical opening 114a. One limiting protrusion 116 is located between the connector hole 115 and the installation operation block 12, and the other limiting protrusion 116 is located below the surge arrester hole 112. The cover plate 13 is provided with two limiting holes 134 corresponding to the two limiting protrusions 116 respectively.

[0044] In this embodiment, as Figure 3 As shown, the edges of the cylindrical cover 11 on both sides of the first vertical opening 114a are respectively formed as flat portions 11c, so as to facilitate a good fit of the cover plate 13 and improve the sealing effect of the cover plate 13 on the vertical opening 114a. The aforementioned mounting connecting block 12, connector hole 115 and limiting protrusion 116 are respectively located on the corresponding flat portions 11c.

[0045] In this embodiment, the cylindrical cover 11, the installation operation block 12, and the cover plate 13 are all made of transparent rigid insulating material, preferably transparent polyurethane material.

[0046] In this embodiment, the mounting rod used to install the rigid protective cover 10 of the cable transition connection device onto the cable transition connection device is an insulated operating rod, including a rod body, a mounting plate, and two support columns. One end of the mounting plate is connected to the upper end of the rod body, and the other end has an arc-shaped notch that matches the cylindrical cover 11. The two support columns are symmetrically arranged on both sides of the arc-shaped notch and perpendicular to the upper surface of the mounting plate. The distance between the two support columns is greater than... Figure 1 The spacing between the two operating sockets 12a shown is determined by the width of the first vertical opening 114a as needed.

[0047] like Figure 1 and Figure 5 As shown, in this embodiment, the installation process of the rigid protective cover 10 for the cable transition connection device is as follows:

[0048] Step S1, first remove the cover plate 13 from the... Figure 1 Rotate upwards as shown Figure 5 The state shown.

[0049] Step S2: Insert the lower end of the cylindrical cover 11 into the arc-shaped notch of the mounting plate for mounting the operating rod, and align the two mounting operating blocks 12 with the two support columns located on both sides of the arc-shaped notch.

[0050] Step S3: Hold the edges of the surge arrester holes 112 on both sides of the cylindrical cover 11 with both hands and pull them outward to open the first vertical opening 114a and the radial opening 114b. When the distance between the two operating holes 12a increases to the same as the distance between the two support columns on the mounting operating rod, insert the two support columns of the mounting operating rod into the two operating holes 12a respectively.

[0051] Step S4: Hold the lower end of the installation lever and raise the protective cover 10 to the outside of the cable transition connection device.

[0052] Step S5: Move the installation lever to allow the output lead to pass through the first vertical opening 114a and the radial opening 114b in sequence into the output lead hole 111. Then, move the protective cover 10 downward to a position where the surge arrester hole 112 is at a height corresponding to the surge arrester. Then, move the protective cover 10 toward the surge arrester so that at least one umbrella sleeve on the end of the surge arrester near the connecting plate passes through the surge arrester hole 12 and enters the cylindrical cover 11.

[0053] Step S6: Move the installation operating lever downwards to disengage the support column from the operating socket 12a, thus restoring the first vertical opening 114a to its original position. Figure 5 The state shown; at this time, the surge arrester hole 112 is snapped onto the surge arrester, thereby fixing the protective cover 10 onto the surge arrester.

[0054] Step S7, use the upper end of the installation lever to rotate the cover plate 13 downwards as shown. Figure 1 As shown in the diagram, each limiting protrusion 116 is inserted into its corresponding limiting hole 134, thereby locking the cover plate 13 and the cylindrical cover 11 together. This completes the installation process of the protective cover 10.

[0055] Functions and effects of the embodiments

[0056] The rigid protective cover for the cable transition connection device according to this embodiment has a cylindrical cover and two installation operation blocks. The cylindrical cover is provided with an output lead hole, a surge arrester hole, a grounding rod hole, and an installation operation opening. The output lead hole is located in the center of the top wall of the cylindrical cover, and the surge arrester hole and the grounding rod hole are located on both sides of the side wall of the cylindrical cover. The installation operation opening includes a first vertical opening on the side wall of the cylindrical cover and a radial opening on the top wall of the cylindrical cover. The two installation operation blocks are located above the surge arrester hole and are symmetrically arranged on both sides of the edge of the first vertical opening. Each block is provided with an operation insertion hole, which allows the two support columns of the installation operation rod to be inserted for installation. Therefore, this embodiment not only has a good insulation protection effect, but also allows the operator to install the protective cover onto the cable transition connection device by means of the installation operation rod when the power line is energized and without having to climb the pole. Moreover, it is convenient to operate and safe and reliable.

[0057] In addition, because it also includes a cover plate, which is correspondingly provided with the first vertical opening and whose upper end is rotatably connected to the upper end of the cylindrical cover, one side of the cover plate is provided with a surge arrester notch that matches the surge arrester hole and an installation operation block notch that matches the installation operation block, which can effectively seal the first vertical opening.

[0058] Furthermore, because a rotating joint is provided on the inner side of the other side of the cover plate, and a joint hole matching the rotating joint is provided on the edge of the cylindrical cover body located on the side of the first vertical opening, the cover plate is rotatably connected to the cylindrical cover body by means of being movably installed in the joint hole through the rotating joint. The structure is simple, easy to process and manufacture, and also easy to operate.

[0059] In addition, because a limiting protrusion is provided on each side of the first vertical opening on the cylindrical cover, one limiting protrusion is located between the connector hole and the installation operation block, and the other limiting protrusion is located below the surge arrester hole, and the cover plate is provided with two limiting holes corresponding to the two limiting protrusions respectively, the cover plate and the cylindrical cover are well locked together, which not only prevents the cover plate from shaking, but also ensures the closing effect of the first vertical opening and the radial opening.

[0060] In addition, because the cylindrical cover, the installation operation block, and the cover plate are all made of transparent polycarbonate material, which has better hardness than the soft insulating rubber used in the prior art, on the one hand, it is easier to operate using the installation operation rod; on the other hand, the transparent material not only makes it easier to observe the position of each component inside the cylindrical cover during the installation operation, making the installation operation easier, but also facilitates the later maintenance of the cable transition connection device.

[0061] The above embodiments are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model.

[0062] For example, such as Figure 2 As shown, the installation operation opening 114 also includes a third vertical opening 114d, which is connected to the second vertical opening 114c. The third vertical opening 114d extends upward from the lower end face of the cylindrical body 11a to a preset position below the grounding rod hole 113. This makes it easier to open the first vertical opening 114a and the radial opening 114b while ensuring the overall structural stability of the cylindrical cover 11.

Claims

1. A rigid protective cover for a cable transition connection device, used to provide insulation protection for a cable transition connection device including a surge arrester, a connecting plate, an input lead, an output lead, and a grounding rod, characterized in that... include: A cylindrical cover for mounting outside the connecting plate; and Two mounting blocks are each equipped with an operating socket for inserting the two support columns of the mounting rod. The cylindrical cover is closed at the top and open at the bottom, and is equipped with output lead holes, surge arrester holes, grounding rod holes, and installation and operation openings. The output lead hole is located in the center of the top wall of the cylindrical cover. The surge arrester hole and the grounding rod hole are located on both sides of the side wall of the cylindrical cover. The installation operation opening includes a first vertical opening located on the side wall of the cylindrical cover and a radial opening located on the top wall of the cylindrical cover. The first vertical opening passes through the center of the surge arrester hole. The radial opening passes through the center of the output lead hole, and one end is connected to and communicates with the upper end of the first vertical opening. The two installation operation blocks are located above the surge arrester hole and are symmetrically arranged on both sides of the edge of the first vertical opening.

2. The rigid protective cover for the cable transition connection device according to claim 1, characterized in that, Also includes: A cover plate is provided corresponding to the first vertical opening. The upper end of the cover plate is rotatably connected to the upper end of the cylindrical cover.

3. The rigid protective cover for the cable transition connection device according to claim 2, characterized in that: in, One side of the cover plate is provided with a surge arrester notch that matches the surge arrester hole and an installation operation block notch that matches the installation operation block.

4. The rigid protective cover for the cable transition connection device according to claim 2 or 3, characterized in that: in, A rotating joint is provided on the inner side of the other side of the cover plate. The cylindrical cover has a connector hole at one edge of the first vertical opening that matches the rotary joint. The cover plate is rotatably connected to the cylindrical cover by means of being movably installed in the joint hole via the rotary joint.

5. The rigid protective cover for the cable transition connection device according to claim 4, characterized in that: in, A limiting protrusion is provided on each side of the first vertical opening on the cylindrical cover. One limiting protrusion is located between the connector hole and the installation operation block, and the other limiting protrusion is located below the surge arrester hole. The cover plate is provided with two limiting holes that correspond to the two limiting protrusions respectively.

6. The rigid protective cover for the cable transition connection device according to claim 1, characterized in that: in, The cylindrical cover is composed of a cylindrical body and a conical body arranged from bottom to top. The installation operation opening also includes a second vertical opening located on the side wall of the conical cylinder. The second vertical opening extends downward from the other end of the radial opening to the connection between the conical cylinder and the cylindrical body.

7. The rigid protective cover for the cable transition connection device according to claim 6, characterized in that: in, The installation operation opening also includes a third vertical opening located on the cylindrical body. The third vertical opening extends downward from a predetermined position directly below the grounding rod hole to the lower end face of the cylinder.

8. The rigid protective cover for the cable transition connection device according to claim 1, characterized in that: in, The cylindrical cover is a transparent polyurethane cover. The installation operation block is a transparent polyurethane block.

9. The rigid protective cover for the cable transition connection device according to claim 1 or 8, characterized in that: in, The cylindrical cover and the installation operation block are integrally molded.

10. The rigid protective cover for the cable transition connection device according to claim 2, characterized in that: in, The cover plate is a transparent polycarbonate plate.

Images