Railway power supply cross arm lead fixing device

Abstract

The utility model discloses a railway power supply cross arm lead fixing device, which relates to the technical field of lead fixing and comprises a cross arm, an insulator is mounted on the cross arm, a groove is arranged at the upper end of the insulator, clamping grooves are symmetrically arranged on the inner wall of the groove, and two sides of the upper end of the insulator are fixedly connected with lower wiring half tubes which are symmetrically arranged. A fixing assembly is arranged on the groove, the fixing assembly comprises two symmetrically-arranged arc-shaped guide blocks, and the side walls of the arc-shaped guide blocks make contact with the side wall of the upper end of the cross arm; according to the utility model, the upper fixing half tube and the lower wiring half tube which are of a double-end structure are adopted to fix the lead, and compared with a traditional single-point fixing mode, the double-end fixing mode can greatly improve the stability of lead fixing; and the two sleeves can be driven to move oppositely by extruding the operating rod, so that the fixing assembly is disassembled and assembled, and due to the design, the difficulty and complexity of high-altitude operation are reduced, and the working efficiency is also improved.

Description

Technical Field

[0001] This utility model relates to the field of lead wire fixing technology, specifically a railway power supply crossarm lead wire fixing device. Background Technology

[0002] The crossarm of a railway power supply system is an important component of power lines, playing a crucial role in supporting conductors, maintaining insulation, and distributing loads. Insulators are used to fix the leads on the crossarm, and the upper end of the insulator is usually secured with clamps and bolts. Due to the high altitude work involved, the lead fixing operation is cumbersome; furthermore, single-end fixing of the lead results in poor stability. Under wind, vibration, or external forces, the lead fixed at a single point is more prone to loosening or shifting, thus affecting the stability and safety of power transmission, and even causing wear and deformation of the clamps. Uneven stress can also lead to damage to the insulators or leads. To address these problems, this utility model proposes a lead fixing device for a railway power supply crossarm. Utility Model Content

[0003] The purpose of this utility model is to provide a railway power supply crossarm lead fixing device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a railway power supply crossarm lead wire fixing device, including a crossarm, an insulator installed on the crossarm, a groove provided at the upper end of the insulator, symmetrical slots provided on the inner wall of the groove, and symmetrically arranged lower wiring half pipes fixedly connected to both sides of the upper end of the insulator;

[0005] A fixing component is provided on the groove. The fixing component includes two symmetrically arranged arc-shaped guide blocks, and the sidewalls of the arc-shaped guide blocks are in contact with the upper sidewall of the crossbeam. One end of each arc-shaped guide block is fixedly connected to an upper fixing half-tube. A connecting shaft is connected between the arc-shaped guide blocks, and symmetrically arranged movable sleeves are provided on the connecting shaft. One end of each sleeve is inserted into the groove, and a spring provided on the connecting shaft is connected between the sleeves.

[0006] Preferably, a vertically arranged operating rod is fixedly connected to the middle of the upper end of each connecting shaft.

[0007] Preferably, each of the card slots is provided with a through groove that extends through the upper part of the crossbeam.

[0008] Preferably, the diameter of the slot is larger than the width of the through slot.

[0009] Preferably, the upper end of the crossbeam is symmetrically provided with arc-shaped drainage grooves, and the upper end of the arc-shaped drainage grooves is connected to the lower end of the groove.

[0010] Preferably, the upper fixed half-tube and the lower wiring half-tube are arranged in corresponding contact at their edges, and both the upper fixed half-tube and the lower wiring half-tube have a rubber layer on their inner walls.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model uses a double-headed upper fixed half-pipe and a lower wiring half-pipe to fix the lead wire. Compared with the traditional single-point fixing method, this double-headed fixing method can greatly increase the stability of the lead wire fixing. Furthermore, by squeezing the operating rod, the two sleeves can be moved towards each other, thereby allowing the fixing components to be disassembled and assembled. This design not only reduces the difficulty and complexity of high-altitude operations, but also improves work efficiency. Attached Figure Description

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

[0013] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0014] Figure 3 This is a schematic diagram of the insulator structure of this utility model;

[0015] Figure 4 This is a schematic diagram of the fixing component structure of this utility model.

[0016] In the diagram: 1. Crossarm; 2. Insulator; 21. Groove; 211. Slot; 212. Through slot; 22. Lower wiring half-pipe; 23. Arc-shaped drainage groove; 3. Fixing component; 31. Arc-shaped guide block; 32. Upper fixing half-pipe; 33. Connecting shaft; 34. Sleeve; 35. Spring; 36. Operating lever. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4 This utility model provides a technical solution: a railway power supply crossarm lead wire fixing device, including a crossarm 1, an insulator 2 installed on the crossarm 1, a groove 21 provided at the upper end of the insulator 2, a slot 211 symmetrically provided on the inner wall of the groove 21, and a symmetrically arranged lower wiring half pipe 22 fixedly connected to both sides of the upper end of the insulator 2.

[0019] A fixing component 3 is provided on the groove 21. The fixing component 3 includes two symmetrically arranged arc-shaped guide blocks 31, and the sidewalls of the arc-shaped guide blocks 31 are in contact with the upper sidewall of the crossbeam 1. One end of each arc-shaped guide block 31 is fixedly connected to an upper fixing half tube 32. A connecting shaft 33 is connected between the arc-shaped guide blocks 31, and symmetrically arranged movable sleeves 34 are provided on the connecting shaft 33. One end of the sleeve 34 is inserted into the groove 21, and a spring 35 is provided on the connecting shaft 33 between the sleeves 34.

[0020] Furthermore, a vertically arranged operating rod 36 is fixedly connected to the middle of the upper end of the connecting shaft 33. By pressing the operating rod 36, the two sleeves 34 are driven to move closer to each other, which can disassemble and assemble the fixing component 3, thereby fixing the wires laid on the two lower wiring half-pipes 22.

[0021] Furthermore, each of the slots 211 is provided with a through groove 212 that passes through the upper part of the crossarm 1. The through groove 212 is used to fix the connecting shaft 33 through the corresponding through groove 212 when the component 3 is installed.

[0022] Furthermore, the diameter of the slot 211 is larger than the width of the through slot 212. The slot 211 is used to insert the sleeve 34 into the slot under the elastic force of the spring 35, thereby limiting the position of the fixing component 3.

[0023] Furthermore, the upper end of the crossarm 1 is symmetrically provided with arc-shaped drainage grooves 23, and the upper end of the arc-shaped drainage grooves 23 is connected to the lower end of the groove 21. The arc-shaped drainage grooves 23 facilitate the drainage of water accumulated inside the groove 21, preventing water accumulation over time from corroding the wires.

[0024] Furthermore, the upper fixing half-pipe 32 and the lower wiring half-pipe 22 are positioned at corresponding contact edges, and both the upper fixing half-pipe 32 and the lower wiring half-pipe 22 have rubber layers on their inner walls. The wire is fixed by the closure of the upper fixing half-pipe 32 and the lower wiring half-pipe 22, and the wire is double-ended for increased stability. The rubber layers on the inner walls of the upper fixing half-pipe 32 and the lower wiring half-pipe 22 protect the wire and reduce wear.

[0025] Specifically, firstly, the lead wire is passed through the lower wiring half-pipe 22 to the upper end of the insulator 2, and the lead wire is laid on the two lower wiring half-pipes 22. Then, the side walls of the two arc-shaped guide blocks 31 are attached to the upper side wall of the insulator 2. Then, the operating rod 36 is manually squeezed and pressed down to make the two upper fixing half-pipes 32 on the fixing component 3 fit with the lower wiring half-pipes 22, thereby fixing the lead wire. Finally, the operating rod 36 is released, and the sleeve 34 is lowered under the elastic force of the spring 35 and inserted into the corresponding slot 211 on the inner wall of the groove 21, limiting the fixing component 3, thus fixing the lead wire. The use of the double-headed upper fixing half-pipe 32 and lower wiring half-pipe 22 to fix the lead wire increases the stability of the lead wire fixing.

[0026] 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. A railway power supply cross arm lead fixing device, comprising a cross arm (1) on which an insulator (2) is installed, characterized in that: The upper end of the insulator (2) is provided with a groove (21), the inner wall of the groove (21) is symmetrically provided with a clamping groove (211), and the upper end of the insulator (2) is fixedly connected with symmetrically arranged lower wire half pipes (22) on both sides; The upper end of the groove (21) is provided with a fixing assembly (3), the fixing assembly (3) comprises two symmetrically arranged arc-shaped guide blocks (31), the side wall of the arc-shaped guide block (31) is in contact with the side wall of the upper end of the cross arm (1), one end of the arc-shaped guide block (31) is fixedly connected with an upper fixed half pipe (32), a connecting shaft (33) is connected between the arc-shaped guide blocks (31), a sleeve (34) is symmetrically arranged on the connecting shaft (33) in a movable connection mode, one end of the sleeve (34) is inserted into the groove (21) in a corresponding mode, and a spring (35) provided on the connecting shaft (33) is connected between the sleeves (34).

2. A railway power supply cross arm lead fixing device according to claim 1, characterized in that: The upper end of the connecting shaft (33) is fixedly connected with a vertically arranged operating rod (36).

3. A railway power supply cross arm lead fixing device according to claim 1, characterized in that: The clamping groove (211) is provided with a through groove (212) penetrating the upper part of the cross arm (1) at the upper end.

4. A railway power supply cross arm lead fixing device according to claim 1, characterized in that: The caliber of the clamping groove (211) is greater than the width of the through groove (212).

5. A railway power cross arm lead fixture as defined in claim 1 wherein: The upper end of the cross arm (1) is symmetrically provided with an arc-shaped drainage groove (23) inside, and the upper end of the arc-shaped drainage groove (23) is in communication with the lower end inside the groove (21).

6. A railway power cross arm lead fixture as defined in claim 1 wherein: The edges of the upper fixed half pipe (32) and the lower wire half pipe (22) are arranged in a corresponding contact mode, and the inner walls of the upper fixed half pipe (32) and the lower wire half pipe (22) are both provided with rubber layers.

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