An aerial cable insulation protection device

Abstract

The utility model provides an overhead cable insulation protection device, include: main insulation protection cover and with main insulation protection cover detachable joint extension protection cover, extension protection cover includes for covering cable's semi -closed cover body and set up in the cover body be used for clamping cable's a plurality of elastic buckles, the bottom of cover body has opened there is the opening of cable, the first end of cover body is provided with the extension joint of connection with main insulation protection cover, extension protection cover still includes the clamping assembly for a plurality of extension protection cover head -to -tail joint of being separately at its first end and tail end. The utility model discloses through extension joint can with main insulation protection cover realizes the detachable connection, and simultaneously clamping assembly can realize a plurality of extension protection cover head -to -tail joint, effectively prolongs cable insulation protection range, and the connection is stable and convenient operation.

Description

Technical Field

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

[0002] Overhead cables are widely used in power transmission. To prevent insulation damage caused by external environmental factors (such as wind and rain erosion, collisions with foreign objects, bird nesting, etc.), insulating protective covers are usually installed on critical parts of the cable. However, most existing insulating protective covers are fixed-length integrated structures. When it is necessary to protect longer sections of the cable or complex parts with branches and joints, the coverage of a single protective cover is limited and cannot meet the actual protection requirements.

[0003] While multiple protective covers are sometimes spliced ​​together in certain scenarios, existing splicing structures have several shortcomings: the snap-fit ​​method is simplistic, often using simple clips, resulting in poor stability and susceptibility to detachment under external forces such as wind; the lack of a precise positioning structure leads to misalignment during splicing, causing gaps in protection; and existing protective covers do not have the function of extending and expanding end-to-end, making it impossible to flexibly adjust the protection range according to the cable length. Therefore, there is an urgent need for an insulating protective cover extension structure that features a secure snap-fit, precise positioning, good anti-detachment effect, and flexible expansion capability. Utility Model Content

[0004] The purpose of this utility model is to overcome the problems of poor expandability of existing insulation protective covers, poor snap-fitting, inaccurate positioning, and easy detachment in splicing structures, and to provide an overhead cable insulation protection device. This extended protective cover can be stably snapped into the main insulation protective cover, effectively preventing detachment, and can be extended end to end to meet the protection needs of cables of different lengths.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an overhead cable insulation protection device, characterized in that it includes: a main insulation protection cover and an extension protection cover detachably connected to the main insulation protection cover, the extension protection cover including a semi-enclosed cover for covering the cable and a plurality of elastic buckles disposed on the cover for clamping the cable, the bottom of the cover having an opening for the cable to enter, the front end of the cover having an extension joint connected to the main insulation protection cover, and the extension protection cover further including clamping components disposed at its front and rear ends for connecting multiple extension protection covers end to end.

[0006] Furthermore, the top of both ends of the main insulating protective cover is provided with axial limiting bosses, and the extension joint includes an elastic retaining ring that engages with the outer contour of the end of the main insulating protective cover, an axial limiting groove that cooperates with the axial limiting bosses, and an upwardly inclined elastic baffle for abutting against the outer contour surface of the end of the main insulating protective cover.

[0007] Furthermore, the elastic buckle is provided with a first groove for accommodating the cable and an elastic opening facing downward and communicating with the first groove, and an upwardly inclined limiting strip is provided at the position of the first groove.

[0008] The beneficial effects of this utility model are: 1. This utility model features strong expandability and stable, reliable connection: Multiple extended protective covers can be connected end-to-end via snap-fit ​​components located at the beginning and end of the extended protective cover. The expansion range can be flexibly adjusted according to the actual protection length of the overhead cable to meet the needs of different scenarios. Simultaneously, through detachable extended connectors and several elastic clips, a tight connection can be achieved with the main insulation protective cover and the cable, ensuring stable connection and convenient operation.

[0009] 2. This utility model has a good anti-fall-off effect: the anti-fall-off setting of the axial limiting groove at the snap-fit ​​and the elastic baffle restricts the axial movement and rotation around the axis of the extended protective cover; at the same time, the limiting baffle at the first groove forms a barb, which can effectively resist external force and prevent the extended protective cover from falling off during use, thus improving the safety and durability of the protection. Attached Figure Description

[0010] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0011] Figure 1 This is a schematic diagram of the present invention, embodiment 1, installed on the main insulating protective cover.

[0012] Figure 2 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model.

[0013] Figure 3 This is a schematic diagram of the extension joint and elastic buckle structure of Embodiment 1 of this utility model.

[0014] Figure 4 This is a schematic diagram of the internal structure of Embodiment 1 of this utility model.

[0015] Figure 5 This is a schematic diagram of the present invention, embodiment 2, installed on the main insulating protective cover.

[0016] Figure 6 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model.

[0017] Figure 7 This is a schematic diagram of the extension joint structure in Embodiment 2 of this utility model.

[0018] Figure 8 This is a schematic diagram of the present invention, embodiment 3, installed on the main insulating protective cover.

[0019] Explanation of reference numerals in the attached figures: 1. Main insulating protective cover; 101. Second snap-fit ​​hole; 102. Bird spike; 103. Axial limiting boss; 2. Extended protective cover; 201. Extended joint; 202. Cover body; 203. Second snap-fit ​​joint; 204. Elastic buckle; 205. Third snap-fit ​​hole; 206. First snap-fit ​​joint; 207. Elastic baffle; 208. Elastic retaining ring; 209. Limiting step; 210. Limiting stop bar; 211. Third snap-fit ​​joint; 212. First snap-fit ​​hole; 213. Snap-fit ​​part; 214. Axial limiting groove; 215. Elastic opening; 216. First wire groove; 217. Second wire groove; 218. Mounting hole. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] Example 1: Please refer to Figures 1 to 4 As shown, this embodiment of an overhead cable insulation protection device includes a main insulation protective cover 1 and an extended protective cover 2. The first end of the extended protective cover 2 is snapped onto both ends of the main insulation protective cover 1. The number of extended protective covers 2 can be flexibly increased or decreased according to the cable extension length, increasing the protection range of the main insulation protective cover and making it applicable to more scenarios. In this embodiment, the top of the main insulation protective cover 1 is provided with three bird spikes 102, located in the middle and on both sides of the top of the main insulation protective cover 1, respectively. The top of both ends of the main insulation protective cover 1 is provided with axial limiting bosses 103. The openings on both sides of the main insulation protective cover 1 are provided with second snap-fit ​​holes 101. In another embodiment, the openings on both sides of the main insulation protective cover 1 can also be provided as snap-fit ​​joints.

[0022] The extended protective cover 2 includes a cover body 202, an elastic buckle 204, and an extended connector 201. The cover body 202 is an arc-shaped semi-enclosed shell, with an opening at the bottom for cable entry. The extended connector 201 is detachably connected to the main insulating protective cover 1. The inner side of the extended connector 201 is sequentially provided with an elastic baffle 207, an elastic retaining ring 208, and an axial limiting groove 214. The elastic baffle 207 is an upwardly angled elastic metal sheet used to abut against the outer contour surface of the end of the main insulating protective cover 1, restricting the extended protective cover 2 from rotating around its axis. The elastic retaining ring 208 is provided with an arc-shaped second groove 217, the inner diameter of which matches the outer diameter of the end of the main insulating protective cover 1, used to clamp the outer contour of the end of the main insulating protective cover 1 downwards. The axial limiting groove 214 cooperates with the axial limiting bosses 103 at the top of both ends of the main insulating protective cover 1 to restrict the axial movement of the extended protective cover 2. An axial limiting groove 214 is formed inside the extension joint 201, and its outer surface protrudes from the outer contour of the extension joint 201 to form a limiting step 209.

[0023] In this embodiment, one elastic buckle 204 is provided, which has a first groove 216 and an elastic opening 215. The first groove 216 is arc-shaped and is used to accommodate the cable. The elastic opening 215 communicates with the first groove 216, and the elastic opening 215 faces downward and gradually widens from top to bottom into a trumpet shape. An upwardly angled limiting strip 210 is provided at the position of the first groove 216. The limiting strip 210 is used to prevent the extended protective cover 2 from being blown away by the wind when the wind is strong. The limiting strip 210 can also act as a hook to catch the cable and prevent it from falling off. In this embodiment, the elastic buckle 204 is snapped into the inside of the cover 202. A through third snap-fit ​​hole 205 is provided at the top of the cover 202, and a third snap-fit ​​connector 211 is provided at the top of the elastic buckle 204. The elastic buckle 204 is snapped into the inside of the cover 202 through the cooperation of the third snap-fit ​​hole 205 and the third snap-fit ​​connector 211. In another embodiment, the elastic buckle 204 can be integrally formed with the cover 202.

[0024] The extended protective cover 2 also includes snap-fit ​​components located at its head and tail ends. The snap-fit ​​components include a first snap-fit ​​connector 206 and a first snap-fit ​​hole 212. In this embodiment, the first snap-fit ​​connector 206 is disposed on the outer contour surface of both sides of the extended connector 201, and the first snap-fit ​​hole 212 is opened on both sides of the tail end of the extended protective cover 2. The inner diameter of the tail end of the extended protective cover 2 is adapted to the outer diameter of the extended connector 201. The first snap-fit ​​connector 206 and the first snap-fit ​​hole 212 cooperate to connect multiple extended protective covers 2 head-to-tail. During head-to-tail installation, the limiting step 209 forms an axial limit, allowing for quick positioning and installation while restricting axial movement, making the structure more reliable. In another embodiment, the first snap-fit ​​hole 212 can be located at the head end of the extended protective cover 2, and the first snap-fit ​​connector 206 can be located at the tail end of the extended protective cover 2.

[0025] Example 2: Please refer to Figures 5 to 7 As shown, the difference between this embodiment and Embodiment 1 lies in the structure of the extension joint 201 and the assembly method of the elastic buckle 204. Furthermore, this embodiment lacks axial limiting bosses 103 on both sides of the main insulating protective cover 1; the remaining parts are consistent with Embodiment 1 and will not be repeated here. In this embodiment, a second snap-fit ​​connector 203 and a second snap-fit ​​hole 101 are provided between the extension joint 201 and the main insulating protective cover 1. The second snap-fit ​​connector 203 is an elastic metal sheet symmetrically arranged on the inner walls of both sides of the extension joint 205, and the second snap-fit ​​hole 101 is symmetrically arranged on the outer contour surface of both sides of the main insulating protective cover 1. The second snap-fit ​​connectors 203 on both sides are elongated rectangular structures with upward-sloping barbs, which can hook the second snap-fit ​​hole 101 after snapping to prevent detachment. In another embodiment, the second snap-fit ​​connector 203 can be provided on the main insulating protective cover 1, and the second snap-fit ​​hole 101 can be provided on the extension joint 205. In this embodiment, two elastic buckles 204 are provided, located at the tail end of the extended protective cover 2 and the rear end of the extended connector 201, respectively. The elastic buckles 204 are integrally formed with the extended protective cover 2, and the top of the extended protective cover 2 is completely sealed, effectively preventing rainwater, dust, etc. from entering. On the outer contour surface of both sides of the tail end of the extended protective cover 2, there are snap-fit ​​parts 213 that cooperate with the second snap-fit ​​part 203 of the extended connector 201. The snap-fit ​​part 213 is a snap-fit ​​hole. The multiple extended protective covers 2 are connected end to end through the cooperation of the second snap-fit ​​part 203 and the snap-fit ​​part 213.

[0026] Example 3: Please refer to Figure 8 As shown, the difference between this embodiment and Embodiment 2 lies in the structure of the extension connector 201; the rest is the same as in Embodiment 2 and will not be described again here. In this embodiment, the front end of the extension connector 201 extends forward and is provided with a mounting hole 218 through which the bird spike 102 on the main insulating protective cover 1 passes. During installation, the mounting hole 218 is aligned with the bird spike 102, so that the bird spike 102 is inserted into the mounting hole 218. During the insertion of the bird spike 102 into the mounting hole 218, due to the limiting effect of the mounting hole 218, the second snap connector 203 can be accurately snapped into the second snap hole 101, completing the installation of the extension protective cover 2, making the installation faster and more convenient.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An overhead cable insulation protection device, characterized in that, include: The main insulating protective cover (1) and the extension protective cover (2) detachably connected to the main insulating protective cover (1) are provided. The extension protective cover (2) includes a semi-enclosed cover (202) for covering the cable and a number of elastic buckles (204) provided on the cover (202) for clamping the cable. The bottom of the cover (202) is provided with an opening for the cable to enter. The first end of the cover (202) is provided with an extension joint (201) connected to the main insulating protective cover (1). The extension protective cover (2) also includes clamping components provided at its first and last ends for connecting multiple extension protective covers (2) end to end.

2. The overhead cable insulation protection device according to claim 1, characterized in that: The main insulating protective cover (1) has axial limiting bosses (103) at both ends. The extension joint (201) includes an elastic retaining ring (208) that engages with the outer contour of the end of the main insulating protective cover (1), an axial limiting groove (214) that cooperates with the axial limiting bosses (103), and an upwardly inclined elastic baffle (207) for abutting against the outer contour surface of the end of the main insulating protective cover (1).

3. The overhead cable insulation protection device according to claim 1, characterized in that: The elastic buckle (204) is provided with a first groove (216) for accommodating the cable and an elastic opening (215) that faces downward and communicates with the first groove (216).

4. The overhead cable insulation protection device according to claim 3, characterized in that: The first groove (216) is provided with an upwardly inclined limiting stop (210).

5. The overhead cable insulation protection device according to claim 1, characterized in that: The snap-fit ​​assembly includes a first snap-fit ​​connector (206) and a first snap-fit ​​hole (212). The first snap-fit ​​connector (206) is disposed at the first end or the last end of the extended protective cover (2), and the first snap-fit ​​hole (212) is disposed at the other end.

6. The overhead cable insulation protection device according to claim 1, characterized in that: A second snap-fit ​​connector (203) and a second snap-fit ​​hole (101) are provided between the extension connector (201) and the main insulating protective cover (1). The second snap-fit ​​connector (203) is provided on one of the extension connector (201) and the main insulating protective cover (1), and the second snap-fit ​​hole (101) is provided on the other.

7. The overhead cable insulation protection device according to claim 6, characterized in that: The tail end of the extended protective cover (2) is provided with a snap-fit ​​part (213) that cooperates with the second snap-fit ​​connector (203) or the second snap-fit ​​hole (101) of the extended connector (201).

8. The overhead cable insulation protection device according to claim 1, characterized in that: The top of the main insulating protective cover (1) is provided with several upward-protruding bird spikes (102), and the front end of the extension joint (201) is provided with an installation hole (218) for engaging with the bird spikes (102).

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