A type of post-insulator cable protection device

Abstract

This utility model discloses a column-type insulator cable protection device, relating to the field of insulator technology for power lines. It includes an insulator body, with a lower cable plate fixed to the top of the body. The lower cable plate has a lower arc groove on its top for cable placement. A protective mounting plate is positioned above the lower cable plate, with a screw threadedly connected to it. A limiting plate is fixed to the top of the lower cable plate, with its inner wall contacting the side wall of the protective mounting plate. The bottom of the screw is embedded in and rotatably connected to the lower cable plate. Multiple upper cable plates are fixed to the bottom of the protective mounting plate. Each upper cable plate includes a top arc-shaped frame, with an arc-shaped buffer plate fixed to its bottom. The buffer plate is made of polyurethane honeycomb board, and an arc-shaped rubber elastic plate is fixed to its bottom. This design reduces the risk of cable breakage, and the multi-point limiting method can still limit the cable even if it breaks into two pieces, reducing the possibility of cable detachment.

Description

Technical Field

[0001] This utility model relates to the field of insulator technology for power lines, and specifically to a post-type insulator cable protection device. Background Technology

[0002] In power systems, post insulators are components that support and secure cables, and are used in transmission and distribution lines, substations, and other locations. The connection between the post insulator and the cable not only bears the important function of power transmission, but also needs to withstand the erosion of the natural environment and the influence of external mechanical forces.

[0003] Existing post-type insulator cable connections mostly use simple bolt fastening, which cannot be adaptively adjusted according to the cable thickness. This easily leads to situations where the bolts are too tight, damaging the cable insulation layer, or too loose, causing the cable to loosen and shift. Furthermore, they lack effective buffer structures. When the cable is subjected to external forces such as wind vibration or mechanical impact, the external force acts directly on the cable, causing wear on the cable insulation layer or even breakage of the conductor. After the cable breaks, it can easily strike the insulator, causing damage to the insulator as well. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a column-type insulator cable protection device, comprising an insulator body, a lower cable plate fixed to the top of the insulator body, and a lower arc groove for placing cables on the top of the lower cable plate; a protective mounting plate is provided above the lower cable plate, and a screw threadedly connected to the protective mounting plate; a limiting plate is fixed to the top of the lower cable plate, the inner wall of the limiting plate is in contact with the side wall of the protective mounting plate; the bottom of the screw is embedded in the lower cable plate and rotatably connected to the lower cable plate; multiple upper cable plates are fixed to the bottom of the protective mounting plate, each upper cable plate including a top arc-shaped frame, an arc-shaped buffer plate fixed to the bottom of the arc-shaped frame, the buffer plate being a polyurethane honeycomb board, and an arc-shaped rubber elastic plate fixed to the bottom of the buffer plate.

[0005] Furthermore, the edge of the protective mounting plate is provided with multiple internal threaded holes, and the top of the cable lower plate is provided with multiple internal threaded grooves. A screw is provided to further connect the protective mounting plate and the cable lower plate through the internal threaded holes and internal threaded grooves.

[0006] Furthermore, a positioning rod is fixed on the lower cable plate. The positioning rod passes through the protective mounting plate and is slidably connected to the protective mounting plate. The positioning rod and the lead screw are symmetrically arranged relative to the protective mounting plate.

[0007] Furthermore, a protective cover is fixed to the bottom of the cable tray.

[0008] Furthermore, six sets are installed on the cable tray.

[0009] The beneficial effects of this utility model are as follows:

[0010] 1. The clamping position can be adjusted according to the cable thickness. The multi-layer buffer structure composed of polyurethane honeycomb plate and rubber elastic plate on the cable plate can deform to absorb external force and evenly distribute the pressure to the cable surface. The rubber elastic plate further buffers the pressure with its own elasticity and generates friction with the cable surface to prevent the cable from sliding. The buffer plate and rubber elastic plate can provide a certain overall offset space for the cable, reducing the risk of cable breakage.

[0011] 2. In the event of cable breakage, the installation of six sets of cable lower plates and the multi-point limiting method can still limit the cable that has broken into two pieces to a certain extent, reducing the possibility of cable detachment. If the cable breaks off from the structure, the protective cover can also effectively protect the end of the insulator body closest to the cable from being struck. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 for Figure 1 Schematic diagram of the installation structure of the lower plate of the cable;

[0014] Figure 3 for Figure 2 A side view of the upper plate of the cable.

[0015] The reference numerals in the attached drawings are explained as follows: 1. Insulator body; 2. Lower cable plate; 3. Upper cable plate; 31. Arc frame; 32. Buffer plate; 33. Rubber elastic plate; 4. Limiting plate; 5. Lead screw; 6. Protective mounting plate; 7. Screw; 8. Protective cover. Detailed Implementation

[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] A type of post-insulator cable protection device, such as Figure 1 , Figure 2 and Figure 3 As shown, the device includes an insulator body 1, a cable lower plate 2 fixed to the top of the insulator body 1, a lower arc groove for placing cables opened on the top of the cable lower plate 2, and a protective cover 8 fixed to the bottom of the cable lower plate 2; a protective mounting plate 6 is provided above the cable lower plate 2, and a screw rod 5 is threadedly connected to the protective mounting plate 6; a limit plate 4 is fixed to the top of the cable lower plate 2, and the inner wall of the limit plate 4 contacts the side wall of the protective mounting plate 6; the bottom of the screw rod 5 is embedded in the cable lower plate 2 and rotatably connected to the cable lower plate 2; multiple cable upper plates 3 are fixed to the bottom of the protective mounting plate 6 (in this embodiment, six sets of cable upper plates 3 are installed, three sets on each side of the screw rod 5); the cable upper plate 3 includes an arc-shaped frame 31 at the top, an arc-shaped buffer plate 32 is fixed to the bottom of the arc-shaped frame 31, the buffer plate 32 is a polyurethane honeycomb board, and an arc-shaped rubber elastic plate 33 is fixed to the bottom of the buffer plate 32.

[0020] The lower arc groove of the lower cable plate 2 is used to place the cable, and the screw 5 connects to the protective mounting plate 6 to achieve lifting and lowering; the multi-layer structure of the upper cable plate 3 clamps and buffers the cable for protection; it realizes stable placement and initial positioning of the cable, protects the core components of the device, ensures that the cable is not damaged by external forces, and can adapt to cables of different thicknesses.

[0021] like Figure 2 As shown, in this embodiment, the edge of the protective mounting plate 6 is provided with multiple internal threaded holes, and the top of the cable lower plate 2 is provided with multiple internal threaded grooves. A screw 7 is provided to further connect the protective mounting plate 6 and the cable lower plate 2 through the internal threaded holes and internal threaded grooves. A positioning rod is also fixed on the cable lower plate 2. The positioning rod passes through the protective mounting plate 6 and is slidably connected to the protective mounting plate 6. The positioning rod and the lead screw 5 are symmetrically arranged relative to the protective mounting plate 6.

[0022] Among them, the screw 7 connects the protective mounting plate 6 and the lower cable plate 2 through the internal threaded hole and internal threaded groove, which enhances the structural stability; the positioning rod and the lead screw 5 are symmetrically arranged to assist the movement and positioning of the protective mounting plate 6; effectively preventing loosening during use of the device and ensuring the cable fixing effect and the reliability of the protection device.

[0023] The working principle of this utility model is as follows:

[0024] When cable installation is required, the operator manually rotates the lead screw 5. The bottom of the lead screw 5 is rotatably connected to the lower cable plate 2. During rotation, due to the transmission action of the thread, the protective mounting plate 6 will move downward along the axial direction of the lead screw 5. During the descent of the protective mounting plate 6, the inner wall of the limiting plate 4 contacts the side wall of the protective mounting plate 6; the positioning rod is slidably connected to the protective mounting plate 6, further guiding the movement of the protective mounting plate 6 and preventing tilting or offset.

[0025] As the protective mounting plate 6 moves downwards, the cable upper plate 3, fixed at its bottom, gradually approaches the cable. The cable upper plate 3 consists of an arc-shaped frame 31, a polyurethane honeycomb buffer plate 32, and a rubber elastic plate 33. Once the buffer plate 32 and rubber elastic plate 33 contact the cable surface, continued rotation of the screw 5 applies pressure to the cable from the protective mounting plate 6. The polyurethane honeycomb plate possesses excellent elasticity and cushioning properties; under pressure, its honeycomb structure deforms, absorbing external force and distributing the pressure evenly across the cable surface. The rubber elastic plate 33 further cushions the pressure with its own elasticity and generates friction with the cable surface, preventing cable slippage. Furthermore, the buffer plate 32 and rubber elastic plate 33 provide a certain overall offset space for the cable, reducing the risk of cable breakage. By continuously rotating the screw 5, the clamping force of the protective mounting plate 6 on the cable can be precisely adjusted according to the cable's thickness, achieving adaptive fastening for cables of different specifications.

[0026] After the screw 7 passes through the inner threaded hole of the protective mounting plate 6 and the inner threaded groove of the lower cable plate 2 and is tightened, the protective mounting plate 6 and the lower cable plate 2 are firmly connected together to form a stable overall structure, which further enhances the fixing effect of the device on the cable and reduces the possibility of structural loosening due to factors such as vibration and wind.

[0027] In addition, the protective cover 8 at the bottom of the cable lower plate 2 can protect key structures such as the connection between the insulator body 1 and the cable lower plate 2, as well as the bottom of the lead screw 5. When rainwater, dust, debris, etc. enter, the protective cover 8 can block these substances and effectively prevent them from corroding and damaging the internal structure of the device. If the cable breaks, the six sets of cable lower plates 2 installed can still limit the cable that has broken into two pieces to a certain extent, reducing the possibility of the cable detaching. If the cable breaks off, the protective cover 8 can also effectively protect the end of the insulator body 1 near the cable from being struck.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A column-type insulator cable protection device, comprising an insulator body (1), a cable lower plate (2) fixed to the top of the insulator body (1), and a lower arc groove for placing the cable opened on the top of the cable lower plate (2); characterized in that: A protective mounting plate (6) is provided above the lower cable plate (2), and a screw rod (5) is threadedly connected to the protective mounting plate (6). A limit plate (4) is fixed on the top of the lower cable plate (2), and the inner wall of the limit plate (4) contacts the side wall of the protective mounting plate (6). The bottom of the screw rod (5) is embedded in the lower cable plate (2) and rotatably connected to the lower cable plate (2). Multiple upper cable plates (3) are fixed on the bottom of the protective mounting plate (6). The upper cable plate (3) includes an arc-shaped frame (31) on the top. An arc-shaped buffer plate (32) is fixed on the bottom of the arc-shaped frame (31). The buffer plate (32) is a polyurethane honeycomb plate. An arc-shaped rubber elastic plate (33) is fixed on the bottom of the buffer plate (32).

2. The cable protection device with a post-type insulator according to claim 1, characterized in that: The protective mounting plate (6) has multiple internal threaded holes through its edge, and the cable lower plate (2) has multiple internal threaded grooves corresponding to its top. A screw (7) is provided to further connect the protective mounting plate (6) and the cable lower plate (2) through the internal threaded holes and internal threaded grooves.

3. The cable protection device with a post-type insulator according to claim 1, characterized in that: A positioning rod is also fixed on the lower cable plate (2). The positioning rod passes through the protective mounting plate (6) and is slidably connected to the protective mounting plate (6). The positioning rod and the lead screw (5) are symmetrically arranged relative to the protective mounting plate (6).

4. A post-type insulator cable protection device according to claim 1, characterized in that: The bottom of the lower cable plate (2) is fixed with a protective cover (8).

5. A post-type insulator cable protection device according to claim 1, characterized in that: The cable top plate (3) is equipped with six sets.

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