Installation auxiliary tool for overhead line system dropper wire clamp

By designing auxiliary tools for installing catenary dropper clamps, and using operating handles and limiting structures to stabilize the position of the dropper clamps, the problem of deflection of locking plates and U-shaped lifting rings was solved, thus improving installation and work efficiency.

CN223933521UActive Publication Date: 2026-02-24JINAN POWER SUPPLY SECTION OF CHINA RAILWAY JINAN BUREAU GRP CO LTD
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Patent Information

Application Number
CN202520608689.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-02-24
Estimated Expiration
2035-04-02

AI Technical Summary

Technical Problem

During the installation and adjustment of existing overhead contact line dropper clamps, the tightening of torque wrenches can easily cause the locking plates and U-shaped lifting rings to deflect, resulting in changes in the angle of the current-carrying loop nose, which affects installation and work efficiency.

Method used

An auxiliary tool for installing catenary dropper clamps was designed, including an operating handle, a clamping structure, and a limiting structure. The clamping structure limits the current-carrying loop nose, and the limiting structure limits the locking plate on the dropper clamp bolt. With the help of a torque wrench, the clamps are tightened to ensure the stability of the dropper clamp position.

Benefits of technology

It enables rapid installation, reduces labor intensity, improves work efficiency, and shortens work time.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223933521U_ABST
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Abstract

The utility model relates to the technical field of catenary dropper wire clamp installation, in particular to a catenary dropper wire clamp installation auxiliary tool, a worker holds an operating handle to clamp a clamping structure at a catenary dropper wire clamp to limit a current-carrying loop wire nose, and meanwhile, a limiting structure limits a locking plate on a dropper wire clamp bolt. Then the worker uses the torque wrench to fasten the dropper wire clamp bolt, so that the worker can operate quickly and conveniently, the working time is shortened, the labor intensity is reduced, and the working efficiency is improved; comprising an operating handle; the operating handle further comprises a clamping structure and a limiting structure, the clamping structure is installed on the operating handle, and the limiting structure is installed on the clamping structure. The end portion of the operation handle limits the current-carrying loop wire nose, and the limiting structure limits the locking plate on the dropper wire clamp bolt.
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Description

Technical Field

[0001] This utility model relates to the technical field of catenary dropper clamp installation, and in particular to auxiliary tools for catenary dropper clamp installation. Background Technology

[0002] The catenary dropper clamp is an important component of the catenary dropper. One end is installed on the catenary cable, and the other end on the contact wire, serving to secure the dropper. To prevent the dropper from loosening due to natural conditions and vibrations from the passing pantograph of an electric locomotive after installation, a brake pad is added to the bolt of the catenary dropper clamp. To ensure the normal passage of the pantograph of an electric locomotive and prevent pantograph strikes after installation, the installation of the catenary dropper clamp is regulated. The dropper clamp must be installed perpendicular to the contact wire, with the current-carrying loop nose angle between 30° and 45°.

[0003] Generally, torque wrenches are used to install contact wire hanger clamps, such as those disclosed in utility model patent CN222589566U and invention patent CN118024171B.

[0004] However, during use, it was found that during the installation and adjustment of the contact wire droppers, as the torque wrench tightens the bolts of the dropper clamps, the positions of the locking plates and "U"-shaped lifting rings on the dropper clamps will deflect, and the angle of the current-carrying loop nose at the contact wire dropper clamp will also change. Operators need to readjust the angles of the locking plates, "U"-shaped lifting rings, and current-carrying loop noses, which takes up work windows, reduces work efficiency, and results in poor practicality. Therefore, there is an urgent need for an auxiliary tool for installing contact wire dropper clamps to improve the above problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an auxiliary tool for installing contact wire dropper clamps. The operator holds the operating handle to clamp the clamping structure at the contact wire dropper clamp, limiting the current-carrying loop nose. At the same time, the limiting structure limits the locking plate on the dropper clamp bolt. Then, the operator uses a torque wrench to tighten the dropper clamp bolt. This tool facilitates quick operation, shortens working time, reduces labor intensity, and improves work efficiency.

[0006] The contact wire dropper clamp installation auxiliary tool of this utility model includes an operating handle; it also includes a clamping structure and a limiting structure, the clamping structure is installed on the operating handle, and the limiting structure is installed on the clamping structure;

[0007] The end of the operating handle limits the current-carrying loop nose, and the limiting structure limits the locking piece on the dropper wire clamp bolt;

[0008] The operator holds the operating handle and clamps the clamping structure onto the contact wire dropper clamp, limiting the current-carrying loop nose. At the same time, the limiting structure limits the locking plate on the dropper clamp bolt. Then, the operator uses a torque wrench to tighten the dropper clamp bolt. This allows for quick operation, shortens working time, reduces labor intensity, and improves work efficiency.

[0009] Preferably, the clamping structure includes baffles, both sets of baffles are installed on the operating handle, and a bayonet is formed between the two sets of baffles; the bayonet is clamped at the "U"-shaped lifting ring of the contact wire suspension clamp to limit the "U"-shaped lifting ring, thereby improving the practicality of the contact wire suspension clamp installation auxiliary tool.

[0010] Preferably, the limiting structure includes a locking bolt and a baffle plate. The baffle plate is installed on a set of baffle plates by the locking bolt, and anti-slip pads are provided between the locking bolt and the baffle plate, and between the baffle plate and the baffle plate. A groove is provided on one end of the baffle plate. By twisting the baffle plate, the angle of the baffle plate is adjusted, and then the locking bolt is tightened to lock the baffle plate. After that, when the bayonet is engaged on the contact wire suspension clamp, the groove of the baffle plate abuts against the locking plate on the suspension clamp bolt, thereby limiting the locking plate and improving the practicality of the contact wire suspension clamp installation auxiliary tool.

[0011] Preferably, both sets of baffles are provided with threaded holes; this facilitates the threaded installation of the baffle onto one set of baffles by tightening bolts, thereby facilitating the installation, disassembly, and angle adjustment of the baffle, and improving the practicality of the contact wire suspension clamp installation auxiliary tool.

[0012] Preferably, both sets of baffles are welded to the operating handle; thereby improving the strength of the contact wire suspension cable clamp installation auxiliary tool.

[0013] Preferably, the operating handle is provided with anti-slip texture; this makes it easier for workers to grip the operating handle, thereby improving the practicality of the auxiliary tool for installing contact wire suspension cable clamps.

[0014] One end of the operating handle is provided with a 45° inclined surface, and the inclined surface of the operating handle end presses against the current-carrying loop nose to control the angle of the current-carrying loop nose.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: the operator holds the operating handle and clamps the clamping structure at the contact wire dropper clamp, which limits the current-carrying loop nose. At the same time, the limiting structure limits the locking plate on the dropper clamp bolt. Then, the operator uses a torque wrench to tighten the dropper clamp bolt. This makes it convenient for the operator to operate quickly, shortens the working time and reduces the labor intensity, and improves the work efficiency. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the first isometric structure of this utility model;

[0017] Figure 2 This is a front view structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the second isometric structure of this utility model;

[0019] Figure 4 This is a first isometric structural schematic diagram of the present invention in use;

[0020] Figure 5 This is a schematic diagram of the second isometric structure when the present invention is in use.

[0021] The following are labels in the attached diagram: 1. Operating handle; 2. Baffle; 3. Locking bolt; 4. Baffle plate; 5. Anti-slip pad; 6. Threaded hole; 11. Contact wire dropper clamp; 12. Current-carrying loop nose; 13. Dropper clamp bolt; 14. Locking plate; 15. Torque wrench. Detailed Implementation

[0022] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0023] Example

[0024] like Figure 1 middle Figure 5 As shown, the contact wire dropper clamp installation auxiliary tool includes an operating handle 1; it also includes a clamping structure and a limiting structure, with the clamping structure installed on the operating handle 1 and the limiting structure installed on the clamping structure.

[0025] The end of the operating handle 1 limits the current-carrying loop nose 12, and the limiting structure limits the locking piece 14 on the dropper wire clamp bolt 13;

[0026] The clamping structure includes baffles 2, both sets of baffles 2 are installed on the operating handle 1, and a bayonet is formed between the two sets of baffles 2;

[0027] The limiting structure includes a locking bolt 3 and a baffle 4. The baffle 4 is installed on a set of baffles 2 by the locking bolt 3. Anti-slip pads 5 are provided between the locking bolt 3 and the baffle 4, and between the baffle 4 and the baffle 2. A groove is provided on one end of the baffle 4.

[0028] Both sets of baffles 2 are provided with threaded holes 6;

[0029] Both sets of baffles 2 are welded to the operating handle 1;

[0030] The operating handle 1 is provided with anti-slip texture;

[0031] One end of the operating handle 1 is provided with a 45° inclined surface to control the angle of the current-carrying loop nose 12;

[0032] By twisting the baffle 4, the angle of the baffle 4 is adjusted, and then the locking bolt 3 is tightened to lock the baffle 4. After that, the operator holds the operating handle 1 and clamps the bayonet at the contact wire dropper clamp 11 to limit the current-carrying loop nose 12. At the same time, the groove of the locking plate 14 abuts against the locking plate 14 on the dropper clamp bolt 13 to limit the locking plate 14, so that the contact wire dropper clamp 11, the current-carrying loop nose 12 and the locking plate 14 remain in place. Then, the operator's other hand uses the torque wrench 15 to tighten the dropper clamp bolt 13. This allows the operator to operate quickly with both hands, shortening the working time, reducing labor intensity and improving work efficiency.

[0033] Technical personnel in this industry only need to follow the accompanying instruction manual for installation and operation, without requiring any creative effort from those skilled in the art.

[0034] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An auxiliary tool for installing overhead contact line dropper clamps, including an operating handle (1); characterized in that, It also includes a clamping structure and a limiting structure. The clamping structure is installed on the operating handle (1), and the limiting structure is installed on the clamping structure. The end of the operating handle (1) limits the current-carrying loop nose (12), and the limiting structure limits the locking piece (14) on the dropper wire clamp bolt (13).

2. The auxiliary tool for installing contact wire dropper clamps as described in claim 1, characterized in that, The clamping structure includes baffles (2), both sets of baffles (2) are installed on the operating handle (1), and a bayonet is formed between the two sets of baffles (2).

3. The auxiliary tool for installing contact wire dropper clamps as described in claim 2, characterized in that, The limiting structure includes a locking bolt (3) and a baffle (4). The baffle (4) is installed on a set of baffles (2) by the locking bolt (3). Anti-slip pads (5) are provided between the locking bolt (3) and the baffle (4), and between the baffle (4) and the baffle (2). A groove is provided on one end of the baffle (4).

4. The auxiliary tool for installing contact wire dropper clamps as described in claim 3, characterized in that, Both sets of baffles (2) are provided with threaded holes (6).

5. The auxiliary tool for installing contact wire dropper clamps as described in claim 2, characterized in that, Both sets of baffles (2) are welded to the operating handle (1).

6. The auxiliary tool for installing contact wire dropper clamps as described in claim 1, characterized in that, The operating handle (1) is provided with anti-slip texture.

7. The auxiliary tool for installing contact wire dropper clamps as described in claim 1, characterized in that, One end of the operating handle (1) is provided with a 45° inclined surface to control the angle of the current-carrying loop nose (12).

Citation Information

Patent Citations

  • Torque wrench

    CN118024171B

  • Torque wrench

    CN222589566U