A catenary sectional insulator joint clamp installation auxiliary tool

Abstract

The utility model relates to electrified railway contact network maintenance tool technical field especially relates to a kind of contact network sectional insulator joint wire clamp installation auxiliary tool, comprising: main body support pipe, self-adapting hook, main contact line fixture and rotating threaded rod. One end of main body support pipe is equipped with threaded hole, and the other end is fixedly provided with broken end contact line fixture, and middle part is equipped with connecting portion. Self-adapting hook is rotatably connected with the connecting portion by rotating connecting component, for hooking on non-operation side contact line. Rotating threaded rod is vertically arranged in the threaded hole and is threadedly connected with it, and the top end is movably connected with main contact line fixture. The main contact line fixture is driven to move vertically by rotating threaded rod, and the loose main contact line end can be accurately jacked to align with broken end. The utility model solves the problem of difficult alignment, low efficiency and risk of line clue extraction in manual installation.

Description

Technical Field

[0001] This utility model relates to the technical field of maintenance tools for electrified railway contact networks, and in particular to an auxiliary tool for installing contact network segment insulator connector clamps. Background Technology

[0002] In the overhead contact system of electrified railways, the sectional insulator is a key device for achieving electrical segmentation. Reliable mechanical connection and electrical continuity between the sectional insulator and the flexible contact wires on both sides must be achieved through a specialized fastening fitting, namely a connector clamp. One end of this connector clamp is fitted onto the end of the insulator body, and the other end has a clamping groove precisely matching the shape of the contact wire to hold and conduct the circular cross-section contact wire. Therefore, the installation quality of the connector clamp directly determines the long-term operational reliability and power supply safety of this electrical connection point.

[0003] Currently, in overhead contact line training and on-site maintenance, the traditional method of installing or replacing the connector clamps of sectional insulators relies entirely on manual alignment and installation. Because the contact wire has tension and elasticity, and the clamp slots of the connector clamps must be precisely aligned with the contact wire down to the millimeter level, this method has the following prominent problems and defects: First, the alignment accuracy is poor and the efficiency is low. Manual visual inspection and touch make it difficult to accurately place the clamp into the slot in one go, often requiring multiple adjustments, severely slowing down the work pace. Second, there are significant safety risks. During adjustment, operators must directly and forcefully grasp the contact wire under tension, which can easily cause it to slip from the clamp or hand due to improper force or wire slippage. The high-speed rebound of the wire poses a serious threat of personal injury to the operator. Third, it easily leads to work delays. Railway maintenance must be completed within short and fixed maintenance windows; traditional inefficient methods easily exceed these time limits, thus disrupting transportation order. Utility Model Content

[0004] The problem this utility model aims to solve is to provide an auxiliary tool for installing contact wire segment insulator connector clamps for precise straightening and safe installation of contact wires, addressing the above-mentioned shortcomings.

[0005] To solve the above-mentioned technical problems, the technical solution proposed by this utility model is: an auxiliary tool for installing contact wire segment insulator connector clamps, comprising: The main support tube has a threaded hole at one end and a contact wire clamp at the other end, with a connecting part in the middle. An adaptive hook is rotatably connected to the connecting part via a rotating connecting assembly, and is used to hook onto the non-working side contact line; Main contact line clamp; A rotating threaded rod is vertically inserted into the threaded hole and threadedly engaged with it. The top end of the rotating threaded rod is movably connected to the main contact line clamp, so that when the rotating threaded rod rotates, it can drive the main contact line clamp to move vertically.

[0006] In one embodiment, a drive handle is further included, which is fixedly connected to the lower part of the rotating threaded rod. In another embodiment, the drive handle is a ratchet adjustment handle.

[0007] In one embodiment, the ratchet adjustment handle is provided with a gear shift button for controlling the forward or reverse rotation of the rotating threaded rod.

[0008] In one embodiment, the bottom of the main contact wire clamp is provided with a blind hole, and the top end of the rotating threaded rod is inserted into the blind hole; an annular limiting groove is provided on the part of the rotating threaded rod inserted into the blind hole, and a limiting screw is provided on the side wall of the main contact wire clamp; the end of the limiting screw extends radially into and engages with the annular limiting groove, thereby axially constraining the main contact wire clamp to the rotating threaded rod, while not restricting the rotation of the rotating threaded rod.

[0009] In one embodiment, the rotating connection assembly includes a pin and a locking nut passing through the connection portion and the adaptive hook.

[0010] In one embodiment, both the main contact wire clamp and the broken end contact wire clamp have grooves on their clamping surfaces that are adapted to the shape of the contact wire.

[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows: by hooking the adaptive hook onto the non-operating side contact line, a stable lever fulcrum with an adaptive angle is formed; by fixing the severed end contact line clamp to one end of the main support tube and abutting against the severed end contact line, a positioning benchmark is established; by driving the rotating threaded rod to rotate, it drives the main contact line clamp connected to it to perform controllable vertical lifting. This device can safely, labor-savingly, and efficiently straighten the slack or misaligned end of the main contact line and perfectly align it with the severed end contact line that has been positioned by the fixed clamp, thereby ensuring that the subsequent connector clamp can be installed accurately in one go. This fundamentally and effectively solves the problems of difficult alignment, low work efficiency, and high safety risks of contact line detachment that exist in traditional manual operation. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a three-dimensional structural diagram of an auxiliary tool for installing contact wire segment insulator connector clamps according to one embodiment.

[0014] Reference numerals: 1: Adaptive hook; 2: Main contact wire clamp; 3: Broken end contact wire clamp; 4: Ratchet adjustment handle; 5: Gear shift button; 6: Rotary threaded rod; 7: Threaded hole; 8: Main support tube; 9: Limit screw; 10: Rotary connecting assembly. Detailed Implementation

[0015] To facilitate understanding of this utility model, the following description will be provided in more comprehensive and detailed manner with reference to the accompanying drawings and preferred embodiments. However, the scope of protection of this utility model is not limited to the following specific embodiments.

[0016] Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by those skilled in the art. The technical terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the scope of protection of this invention.

[0017] Unless otherwise specified, all raw materials, reagents, instruments and equipment used in this invention can be purchased from the market or prepared by existing methods.

[0018] Please see Figure 1 An auxiliary tool for installing contact wire segment insulator connector clamps according to one embodiment mainly includes: a main support tube 8, one end of which has a threaded hole 7, and the other end is fixedly equipped with a broken end contact wire clamp 3. A connecting part is provided in the middle. This structure provides a stable rigid foundation and a clear force-bearing skeleton for the entire device, and firmly supports the broken end contact wire in the operation at a preset fixed position, establishing a reliable spatial positioning reference for the entire straightening operation. An adaptive hook 1 is rotatably connected to the connecting part through a rotating connecting assembly 10, and is used to hook onto the non-operating side contact wire, thereby providing a suspension fulcrum for the device. The device also includes a main contact wire clamp 2. A rotating threaded rod 6 is vertically inserted through the threaded hole 7 and threadedly engaged with the threaded hole 7. The top end of the rotating threaded rod 6 is movably connected to the main contact wire clamp 2, so that when the rotating threaded rod 6 rotates, it can drive the main contact wire clamp 2 to move in the vertical direction.

[0019] Specifically, it also includes a drive handle, which is fixedly connected to the lower part of the rotating threaded rod 6. This design efficiently and stably transmits the torque applied by the operator to the rotating threaded rod 6, providing a reliable and controllable power source for the entire straightening process, and is the foundation for realizing the mechanical force amplification function of the device. Specifically, the drive handle is a ratchet adjustment handle 4. The application of the ratchet mechanism makes the operation process less strenuous, and can realize unidirectional intermittent feed and self-locking, significantly reducing the physical requirements of operation, and allowing the state to be maintained at any adjustment position, greatly improving the controllability and safety of the operation. Specifically, the ratchet adjustment handle 4 is equipped with a gear switching button 5 for controlling the forward or reverse rotation of the rotating threaded rod 6. This design realizes quick and reliable switching between the two working directions of lifting and lowering.

[0020] Specifically, the bottom of the main contact wire clamp 2 is provided with a blind hole, and the top of the rotating threaded rod 6 is inserted into the blind hole; an annular limiting groove is provided on the part of the rotating threaded rod 6 that is inserted into the blind hole, and a limiting screw 9 is provided on the side wall of the main contact wire clamp 2; the end of the limiting screw 9 extends radially into and engages with the annular limiting groove to axially constrain the main contact wire clamp (2) to the rotating threaded rod 6, while not restricting the rotation of the rotating threaded rod 6. Through the radial engagement of the limiting groove and the limiting screw 9, the main contact wire clamp 2 is effectively prevented from falling off during operation.

[0021] Specifically, the rotating connection assembly 10 includes a pin and a locking nut passing through the connecting part and the adaptive hook 1. In one specific embodiment, the connecting part is a pair of parallel connecting lugs fixedly mounted on the main support tube 8, and the root of the adaptive hook 1 is placed between the pair of connecting lugs. The rotating connection assembly 10, consisting of a pin and a locking nut, achieves hinge connection.

[0022] Specifically, both the main contact wire clamp 2 and the broken-end contact wire clamp 3 have grooves on their clamping surfaces that are adapted to the shape of the contact wire. This structure increases the contact area between the clamp and the circular contact wire, provides uniform clamping force, effectively prevents damage or slippage of the contact wire surface during lifting or clamping, and ensures operational stability and protection of the contact wire.

[0023] The usage method of the above-mentioned auxiliary tool for installing the contact wire segment insulator joint clamp is as follows: First, hook the adaptive hook 1 onto the stable non-working side contact wire next to the work area to provide a suspension fulcrum for the device. Then, manually adjust the main body of the device so that the groove of the broken end contact wire clamp 3, which is fixed to one end of the main support tube 8, firmly abuts against and clamps the broken end contact wire to be connected, while simultaneously positioning the main contact wire clamp 2 below the end of the main contact wire that needs to be straightened. After confirming that the device is stable, operate the gear shift knob 5 on the ratchet adjustment handle 4 to switch it to the lifting position. Then, repeatedly turn the ratchet adjustment handle 4. The handle drives the rotating threaded rod 6 to rotate in the threaded hole 7 of the main support tube 8, causing the rotating threaded rod 6 to move upward, thereby lifting the main contact wire clamp 2, so that the main contact wire clamp 2 lifts the end of the main contact wire vertically until it achieves a perfect straight connection with the broken end contact wire. After the main contact wire end and the broken end contact wire are stably aligned by the device, install the joint clamp. The specific operation is as follows: Take the connector clamp to be installed, align the slots at both ends of the clamp with the two precisely aligned contact wire ends, and then tighten the fastening bolts on the connector clamp to the specified torque.

[0024] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An auxiliary tool for installing contact wire segment insulator connector clamps, characterized in that, include: The main support tube (8) has a threaded hole (7) at one end and a broken end contact wire clamp (3) fixedly installed at the other end, and a connecting part in the middle. An adaptive hook (1) is rotatably connected to the connecting part via a rotating connecting assembly (10) and is used to hook onto the non-working side contact line; Main contact line clamp (2); A rotating threaded rod (6) is vertically inserted into the threaded hole (7) and threadedly engaged with the threaded hole (7). The top end of the rotating threaded rod (6) is movably connected to the main contact line clamp (2), so that when the rotating threaded rod (6) rotates, it can drive the main contact line clamp (2) to move in the vertical direction.

2. The auxiliary tool for installing contact wire segment insulator connectors according to claim 1, characterized in that, It also includes a drive handle, which is fixedly connected to the lower part of the rotating threaded rod (6).

3. The auxiliary tool for installing contact wire segment insulator connectors according to claim 2, characterized in that, The drive handle is a ratchet adjustment handle (4).

4. The auxiliary tool for installing contact wire segment insulator connectors according to claim 3, characterized in that, The ratchet adjustment handle (4) is equipped with a gear shift button (5) for controlling the rotation of the rotating threaded rod (6) to rotate forward or backward.

5. The auxiliary tool for installing contact wire segment insulator connectors according to claim 1, characterized in that, The bottom of the main contact wire clamp (2) is provided with a blind hole, and the top end of the rotating threaded rod (6) is inserted into the blind hole; the part of the rotating threaded rod (6) inserted into the blind hole is provided with an annular limiting groove, and the side wall of the main contact wire clamp (2) is provided with a limiting screw (9); the end of the limiting screw (9) extends radially into and engages with the annular limiting groove, thereby axially constraining the main contact wire clamp (2) onto the rotating threaded rod (6) without restricting the rotation of the rotating threaded rod (6).

6. The auxiliary tool for installing contact wire segment insulator connectors according to claim 1, characterized in that, The rotating connection assembly (10) includes a pin and a locking nut that pass through the connection part and the adaptive hook (1).

7. The auxiliary tool for installing contact wire segment insulator connectors according to claim 1, characterized in that, The clamping surfaces of the main contact wire clamp (2) and the broken end contact wire clamp (3) are both provided with grooves that are adapted to the shape of the contact wire.

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