Auxiliary device for replacing and installing catenary dropper

Abstract

The utility model provides an overhead line system dropper replacing and installing auxiliary device which comprises a connecting rod, two ends of the connecting rod are respectively and fixedly connected with a wire clamp, the connecting rod comprises a fixing rod, the fixing rod is cylindrical, one end of the fixing rod is connected with the wire clamp, the other end of the fixing rod is connected with a telescopic rod, and the telescopic rod penetrates into the fixing rod. And a locker is arranged at the joint of the fixed rod and the telescopic rod. As an auxiliary tool for replacing and installing the dropper, the dropper replacing device simplifies and accurately replaces the complicated process of replacing the dropper. Only by installing and fixing the auxiliary device, an old dropper can be directly dismounted, and a new dropper is replaced for tensioning to complete crimping. The auxiliary device for replacing the catenary dropper greatly reduces the complex process of replacing the dropper, improves the accuracy of replacing the dropper, and shortens the operation time of replacing the dropper.

Description

Technical Field

[0001] This utility model relates to the field of overhead contact line dropper replacement technology, and in particular to an auxiliary device for replacing and installing overhead contact line droppers. Background Technology

[0002] There are currently two procedures for replacing droppers in overhead contact lines: One involves measuring the height between the catenary wire and the contact wire at the location where the dropper needs replacement, subtracting the heights of the catenary wire dropper clamp and the contact wire dropper clamp, calculating the required dropper length, and then crimping the dropper according to the calculated length before installation. This method is complex and prone to errors after crimping, making it inconvenient for on-site operation and generally not used in practice. The other method involves installing a dropper with one end already crimped at the location where replacement is needed, and installing an adjustable bolt on the other end. By repeatedly measuring and adjusting the uncrimped end of the dropper to meet the design height of the contact wire at that location, the adjustable end is then crimped and the adjusting bolt is removed. This method requires repeated measurements and adjustments, necessitating the movement of the ladder or work vehicle for each measurement, making the process complex and time-consuming. Utility Model Content

[0003] To solve the above-mentioned technical problems, this application provides an auxiliary device for replacing and installing overhead contact line droppers. This utility model is achieved through the following technical solution:

[0004] An auxiliary device for replacing and installing catenary droppers includes a connecting rod, with a wire clamp fixedly connected to both ends of the connecting rod. The connecting rod includes a fixed rod, which is cylindrical. One end of the fixed rod is connected to the wire clamp, and the other end is connected to a telescopic rod. The telescopic rod passes through the fixed rod, and a locking device is provided at the connection between the fixed rod and the telescopic rod.

[0005] The wire clamp includes a connecting seat, on which an integral arc-shaped bottom fastener is provided. A pair of pin connecting cylinders are provided on the top of the left and right sides of the bottom fastener. A connecting pin is provided at the pin connecting cylinder. An arc-shaped movable fastener is hinged to one side of the connecting pin. A fixing ear is provided on the movable fastener. A fixing bolt is hinged to the other side of the connecting pin.

[0006] As a preferred embodiment, the telescopic rod is provided with a scale.

[0007] As a preferred embodiment, a connecting cap is provided at the connection between the fixed rod and the wire clamp, and at the connection between the telescopic rod and the wire clamp, and the connecting seat is fixedly connected to the connecting cap.

[0008] As a preferred embodiment, the bottom of the fixing bolt is provided with an integrated connecting sleeve, which is sleeved on the connecting pin.

[0009] As a preferred embodiment, the fixing bolt is threaded with a locking cap.

[0010] Compared with existing technologies, the beneficial effects of this utility model are as follows: This utility model, as an auxiliary tool for replacing and installing droppers, simplifies and refines the complex process of dropper replacement. Only the auxiliary device needs to be installed and fixed; the old dropper can be directly removed, and the new dropper replaced and tightened to complete the crimping. This contact wire dropper replacement auxiliary device greatly reduces the complexity of the dropper replacement process, improves the accuracy of dropper replacement, and shortens the operation time. Attached Figure Description

[0011] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

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

[0013] Figure 2 This is a schematic diagram of the three-dimensional structure of the connecting rod of this utility model;

[0014] Figure 3 This is a schematic diagram of the three-dimensional structure of the wire clamp of this utility model. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:

[0016] An auxiliary device for replacing and installing catenary droppers includes a connecting rod 1, with a wire clamp 2 fixedly connected to both ends of the connecting rod 1. The connecting rod 1 includes a fixed rod 101, which is cylindrical. One end of the fixed rod 101 is connected to the wire clamp 2, and the other end is connected to a telescopic rod 3. The telescopic rod 3 passes through the fixed rod 101, and a locking device 4 is provided at the connection between the fixed rod 101 and the telescopic rod 3.

[0017] The wire clamp 2 includes a connecting seat 21, on which an integral arc-shaped bottom fastener 22 is provided. A pair of pin connecting cylinders 23 are provided on the top of the left and right sides of the bottom fastener 22. A connecting pin 24 is provided at the pin connecting cylinder 23. An arc-shaped movable fastener 25 is hinged to one side of the connecting pin 24. A fixing ear 26 is provided on the movable fastener 25. A fixing bolt 5 is hinged to the other side of the connecting pin 24.

[0018] Furthermore, the telescopic rod 3 is provided with a scale 31. The scale value of the telescopic rod 3 is the value at the contact point between the scale 31 and the locking device 4, such as... Figure 1 As shown at point A, this value represents the total length of connecting rod 1 after the telescopic rod 3 is adjusted.

[0019] Furthermore, a connecting cap 6 is provided at the connection point between the fixed rod 101 and the wire clamp 2 and at the connection point between the telescopic rod 3 and the wire clamp 2, and the connecting seat 21 is fixedly connected to the connecting cap 6.

[0020] Furthermore, the bottom of the fixing bolt 5 is provided with an integral connecting sleeve 51, which is sleeved on the connecting pin 24.

[0021] Furthermore, a locking cap 52 is threaded onto the fixing bolt 5.

[0022] When using the contact wire dropper replacement and installation auxiliary device, one line clamp 2 fixes the catenary wire, and the other line clamp 2 fixes the contact wire. During fixing, the catenary wire and the contact wire are placed between the bottom fastener 22 and the movable fastener 25 respectively. Then, the fixing bolt 5 is inserted into the fixing ear 26 and locked with the locking cap 52.

[0023] After releasing the locking device 4, the telescopic rod 3 can move up and down within the fixed rod 101 to achieve telescopic movement. When the total length of the connecting rod 1 meets the design height requirement of the contact line at that location, the locking device 4 is locked, and the telescopic rod 3 is fixed and cannot move up or down. At this time, the distance between the catenary and the contact line is a fixed value. Adjust the length of the new dropper according to this fixed value, install the new dropper between the catenary and the contact line, and tighten and press it. Remove the auxiliary device to complete the replacement of the dropper.

[0024] The specific implementation of this utility model has been described in detail above, but it is only an example. This utility model is not limited to the specific implementation cases described above, and equivalent modifications to this utility model are also within the protection scope of this utility model.

Claims

1. An auxiliary device for replacing and installing overhead contact line droppers, characterized in that, Includes a connecting rod (1), with a wire clamp (2) fixedly connected to both ends of the connecting rod (1). The connecting rod (1) includes a fixed rod (101), which is cylindrical. One end of the fixed rod (101) is connected to the wire clamp (2), and the other end is connected to a telescopic rod (3). The telescopic rod (3) is inserted into the fixed rod (101). A locking device (4) is provided at the connection between the fixed rod (101) and the telescopic rod (3). The wire clamp (2) includes a connecting seat (21), and the connecting seat (21) is provided with an integral arc-shaped bottom fastener (22). The top of the left and right sides of the bottom fastener (22) is provided with a pair of pin connecting cylinders (23). The pin connecting cylinder (23) is provided with a connecting pin (24). An arc-shaped movable fastener (25) is hinged to one side of the connecting pin (24). The movable fastener (25) is provided with a fixing ear (26). A fixing bolt (5) is hinged to the other side of the connecting pin (24).

2. The auxiliary device for replacing and installing contact wire droppers according to claim 1, characterized in that, The telescopic rod (3) is provided with a scale (31).

3. The auxiliary device for replacing and installing contact wire droppers according to claim 1, characterized in that, A connecting cap (6) is provided at the connection between the fixed rod (101) and the wire clamp (2) and at the connection between the telescopic rod (3) and the wire clamp (2), and the connecting seat (21) is fixedly connected to the connecting cap (6).

4. The auxiliary device for replacing and installing contact wire droppers according to claim 1, characterized in that, The bottom of the fixing bolt (5) is provided with an integral connecting sleeve (51), which is sleeved on the connecting pin (24).

5. The auxiliary device for replacing and installing contact wire droppers according to claim 1, characterized in that, The fixing bolt (5) is threaded with a locking cap (52).

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