Safety power line protection fitting

Abstract

The utility model relates to a safety type power line protection fitting, which comprises at least one group of protective covers, two elastic rings and a wire fixing assembly, a cable penetrates through the protective covers, the two elastic rings and the wire fixing assembly are arranged in each group of protective covers, the two elastic rings are fixed on two opposite sides of the protective covers, and the cable penetrates through a middle gap between the two elastic rings. The wire fixing assembly comprises a support, two fixing arms, a telescopic rod, a movable sleeve, two inserting shafts and an adjusting screw rod, the support is fixed to the lower portion in the protective cover, and the middle sections of the two fixing arms are rotationally connected with the support. Through cooperative arrangement of the protective cover, the elastic ring and the wire fixing assembly, cables with different wire diameters can be stably supported and fixed by using the wire fixing assembly in the device, and the fixed cables can be protected by using the elastic ring. Serious abrasion between the overhead cable and the device due to the influence of external environments such as wind power is avoided, and the safety of cable overhead supporting is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power fittings, in particular to a safety type electric power line protection fitting. Background Art

[0002] As we all know, the iron or aluminum metal accessories widely used in power transmission lines are collectively referred to as hardware. There are many types of hardware with different uses, such as: various wire clamps for installing wires, various hanging rings for forming insulator strings, various crimping tubes and repair tubes for connecting wires, various types of spacers on split wires, etc. In addition, there are various types of wire pulling hardware for poles and towers, as well as those used to protect wires. The size of the hardware is related and must be coordinated with each other. Most hardware needs to withstand a large tensile force during operation, and some must also ensure good electrical contact at the same time. It is related to the safety of wires or poles. Even if one is damaged, it may cause line failure. Therefore, the quality, correct use and installation of hardware have a certain impact on the safe power transmission of the line. According to the function and structure, it can be divided into categories such as suspension wire clamps, tension wire clamps, connecting hardware, splicing hardware, protective hardware, equipment wire clamps, T-type wire clamps, busbar hardware, wire pulling hardware, etc.; according to the purpose, it can be used as line hardware and substation hardware.

[0003] Traditional power line protection hardware can support and fix overhead cables, but due to the influence of external environmental factors such as wind, overhead cables will still have a certain relative displacement with the power line protection hardware, which makes it easy for friction or extrusion between the power line protection hardware and the cable sheath, and makes the cable sheath easily damaged. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] The utility model provides a safe power line protection hardware, which solves the problem that when the power line protection hardware is used for supporting overhead use, friction or extrusion is easily caused between the power line protection hardware and the cable sheath, which makes the cable sheath easily damaged.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a safe power line protection hardware, comprising at least one group of protective covers through which cables pass, and two elastic rings and a fixed line component arranged in each group of protective covers, the two elastic rings are fixed on opposite sides of the protective covers, and the cable passes through the middle gap of the two elastic rings, the fixed line component comprises a bracket, two fixed arms, a telescopic rod, a movable sleeve, two plug shafts and an adjusting screw, the bracket is fixed at the inner lower part of the protective cover, the middle sections of the two fixed arms are rotatably connected to the brackets, the facing sides of the two fixed arms are also connected to each other by the telescopic rod, so that the two fixed arms can be symmetrically deflected and moved, the bottoms of the two fixed arms are respectively rotatably connected to the two plug shafts, the two plug shafts are fixed on the outer wall of the movable sleeve, the movable sleeve is arranged on the outer side of the adjusting screw and is threadedly connected thereto, and the top of the adjusting screw is rotatably connected to the bracket.

[0008] Preferably, the two fixed arms are symmetrically arranged in the protective cover, and arc-shaped contact areas are formed on the facing sides of the top sections of the two fixed arms, the cable is located between the contact areas of the two fixed arms, and a concave positioning area is formed in the middle section of the fixed arm, and the positioning area passes through the bracket and is rotatably connected to the bracket by a pin shaft, and connecting parts are formed on the facing sides of the two fixed arms, and the two connecting parts are rotatably connected to the two ends of the telescopic rod respectively, and extension parts are formed on the bottoms of the two fixed arms, and the extension parts of the two are respectively located on opposite sides of the movable sleeve, and the extension parts are passed through by the adjacent plug shaft and rotatably connected thereto.

[0009] In a further embodiment, the telescopic rod comprises a sleeve, a piston and a rod body, wherein the piston is slidably disposed in an inner cavity of the sleeve, one end of the rod body is fixedly connected to the piston, and the other end of the rod body extends to the outside of the sleeve.

[0010] In a further embodiment, an opening is formed at the bottom of the protective cover, and the lower end of the adjusting screw extends through the opening to below the protective cover.

[0011] (III) Beneficial effects

[0012] Compared with the prior art, the utility model provides a safe power line protection fitting, which has the following beneficial effects:

[0013] In the utility model, through the coordinated arrangement of the protective cover, the elastic ring and the line fixing component, cables with different wire diameters can be supported and fixed more stably by the line fixing component in the device, and the elastic ring can also be used to protect the fixed cables, avoiding the overhead cables from being affected by external environments such as wind and causing serious wear between the devices, thereby improving the safety of the overhead cable support. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the safety power line protection fittings used in conjunction with the cables according to the implementation scheme;

[0015] Figure 2 for Figure 1 Schematic diagram of the structure of medium-safety power line protection hardware;

[0016] Figure 3 for Figure 2 Schematic diagram of the structure of medium-safety power line protection fittings after cutting open;

[0017] Figure 4 Schematic diagram of the structure of a wire fixing assembly according to the embodiment.

[0018] In the figure: 10, protective cover; 11, wire hole; 20, elastic ring; 30, wire fixing assembly; 31, bracket; 32, fixed arm; 321, contact area; 322, positioning area; 323, connecting part; 324, extension part; 33, telescopic rod; 34, movable sleeve; 35, plug shaft; 36, adjusting screw; 40, cable. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figures 1 to 3 A safety type power line protection hardware comprises at least one group of protective covers 10 through which a cable 40 passes, and two elastic rings 20 and a wire fixing assembly 30 arranged in each group of protective covers 10. The two elastic rings 20 are fixed on opposite sides of the protective cover 10, and the supported and fixed cable 40 can pass through the middle gap of the two elastic rings 20. The elastic ring 20 can be made of elastic rubber material, and when the cable 40 and the elastic ring 20 are squeezed, the deformation of the elastic ring 20 can be used to prevent the outer skin of the cable 40 from being worn. The wire fixing assembly 30 arranged in the protective cover 10 is used to fix the cable 40 passing through the protective cover 10 and the elastic ring 20 after adjustment.

[0021] See also Figure 3 and Figure 4The wire fixing assembly 30 includes a bracket 31, two fixed arms 32, a telescopic rod 33, a movable sleeve 34, two plug shafts 35 and an adjusting screw 36. The bracket 31 is arranged at the inner lower part of the protective cover 10, and the end of the bracket 31 is connected and fixed to the inner wall of the protective cover 10. The middle sections of the two fixed arms 32 are rotatably connected to the bracket 31, and the opposite sides of the two fixed arms 32 are also connected to each other by the telescopic rod 33, so that the two fixed arms 32 can be symmetrically deflected when moving. The top end of the adjusting screw 36 is rotatably connected to the bracket 31, and the movable sleeve 34 is sleeved on the outer side of the adjusting screw 36 and is threadedly connected thereto. The two plug shafts 35 are fixed on the outer wall of the movable sleeve 34 and are on opposite sides at the same time. The bottoms of the two fixed arms 32 are rotatably connected to the two plug shafts 35, respectively, so that when the adjusting screw 36 is rotated, the threaded fit between the adjusting screw 36 and the movable sleeve 34 and the position limiting of the plug shaft 35 and the movable sleeve 34 by the fixed arm 32 can be utilized to make the movable sleeve 34 move axially along the adjusting screw 36. During the movement of the movable sleeve 34, the plug shaft 35 can be utilized to push the fixed arm 32 connected thereto to deflect, so that the two fixed arms 32 can clamp and fix the cable 40 therebetween.

[0022] In this embodiment, an opening is formed at the bottom of the protective cover 10 , and the lower end of the adjusting screw 36 extends through the opening to below the protective cover 10 , so that construction workers can conveniently hold the adjusting screw 36 to adjust the wire fixing assembly 30 .

[0023] In this embodiment, the two fixed arms 32 are symmetrically arranged in the protective cover 10, and the facing sides of the top sections of the two fixed arms 32 are formed with arc-shaped contact areas 321. The cable 40 passes through the protective cover 10 between the contact areas 321 of the two fixed arms 32, and when the cable 40 is fixed, the arc surfaces of the contact areas 321 of the two fixed arms 32 can be made to contact the cable 40, so as to avoid the corners of the device from contacting the outer skin of the cable 40. The middle section of the fixed arm 32 is formed with a concave positioning area 322, which passes through the bracket 31 and is rotatably connected to the bracket 31 by a pin shaft, so that the bracket 31 can be made into a deflection activity of the two fixed arms 32, and the maximum deflection position of the fixed arm 32 can be limited. The facing sides of the two fixed arms 32 are formed with connecting parts 323, and the two connecting parts 323 are rotatably connected to the two ends of the telescopic rod 33 respectively. An extension portion 324 is formed at the bottom of the two fixed arms 32 , and the extension portions 324 of the two are respectively located on two opposite sides of the movable sleeve 34 , and the extension portions 324 are penetrated by the adjacent insertion shaft 35 and are rotatably connected thereto.

[0024] In this embodiment, the telescopic rod 33 includes a sleeve, a piston and a rod body. The piston is slidably disposed in the inner cavity of the sleeve, one end of the rod body is fixedly connected to the piston, and the other end of the rod body extends to the outside of the sleeve, so that the rod body can move axially along the sleeve by the piston. The end of the sleeve and the end of the rod body located outside the sleeve can be rotatably connected to the extension parts 324 of the two fixed arms 32 respectively.

[0025] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described one by one here. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A safe power line protection hardware, characterized in that: The invention comprises at least one set of protective covers (10) through which a cable (40) passes, and two elastic rings (20) and a wire fixing assembly (30) arranged in each set of protective covers (10), wherein the two elastic rings (20) are fixed on opposite sides of the protective covers (10), and the cable (40) passes through a gap in the middle of the two elastic rings (20). The wire fixing assembly (30) comprises a bracket (31), two fixed arms (32), a telescopic rod (33), a movable sleeve (34), two plug shafts (35) and an adjusting screw (36); the bracket (31) is fixed at the inner lower part of the protective cover (10); the middle sections of the two fixed arms (32) are rotatably connected to the bracket (31); the opposite sides of the two fixed arms (32) are also connected to each other by the telescopic rod (33), so that the two fixed arms (32) can be symmetrically deflected and moved; the bottoms of the two fixed arms (32) are respectively rotatably connected to the two plug shafts (35); the two plug shafts (35) are fixed on the outer wall of the movable sleeve (34); the movable sleeve (34) is sleeved on the outer side of the adjusting screw (36) and is threadedly connected thereto; the top end of the adjusting screw (36) is rotatably connected to the bracket (31).

2. The safety type power line protection hardware according to claim 1, characterized in that: The two fixed arms (32) are symmetrically arranged in the protective cover (10), and arc-shaped contact areas (321) are formed on the facing sides of the top sections of the two fixed arms (32), and the cable (40) is located between the contact areas (321) of the two fixed arms (32).

3. The safety type power line protection hardware according to claim 2, characterized in that: A concave positioning area (322) is formed in the middle section of the fixed arm (32), and the positioning area (322) passes through the bracket (31) and is rotatably connected to the bracket (31) by means of a pin shaft.

4. The safety type power line protection hardware according to claim 3, characterized in that: The two fixed arms (32) are each formed with a connecting portion (323) on the facing sides thereof, and the two connecting portions (323) are respectively rotatably connected to two ends of the telescopic rod (33).

5. The safety type power line protection hardware according to claim 4, characterized in that: The telescopic rod (33) comprises a sleeve, a piston and a rod body, wherein the piston is slidably arranged in the inner cavity of the sleeve, one end of the rod body is fixedly connected to the piston, and the other end of the rod body extends to the outside of the sleeve.

6. A safety type power line protection fitting according to claim 4 or 5, characterized in that: An extension part (324) is formed at the bottom of each of the two fixed arms (32), and the extension parts (324) of the two are respectively located on two opposite sides of the movable sleeve (34), and the extension parts (324) are penetrated by the adjacent insertion shaft (35) and are rotatably connected thereto.

7. The safety type power line protection hardware according to claim 1, characterized in that: An opening is formed at the bottom of the protective cover (10), and the lower end of the adjusting screw (36) passes through the opening and extends to below the protective cover (10).

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