Wire clamp for railway contact network

Abstract

The utility model discloses a wire clamp for a railway catenary, and relates to the technical field of railway catenaries, the wire clamp for the railway catenary comprises a first clamping block and a second clamping block, four corners of the outer side of the first clamping block are provided with fixing bolts, one side of the first clamping block is provided with a first suspension fixing block, and the other side of the first clamping block is provided with a second suspension fixing block; a first threaded hole is formed in the top end of the first suspension fixing block, a grounding wire is clamped through mutual clamping of the first clamping block and the second clamping block, and through arrangement of the first suspension block, the first threaded hole, the second suspension block and the second threaded hole, when wires with different distances are clamped, the clamping width can be adjusted, and the clamping efficiency is improved. Through the connection of the tenon-and-mortise blocks and the tenon-and-mortise grooves and the self-locking design of the tenon-and-mortise, when a train of 350 km / h passes, the amplitude attenuation rate is 65% higher than that of a screw, so that the stability of the wire clamp is improved. And through the arrangement of a fastening screw and a fixing buckle, the contact line can be more stable.

Description

Technical Field

[0001] This utility model relates to the field of railway catenary technology, and in particular to a wire clamp for railway catenary. Background Technology

[0002] The railway overhead contact system is the core power supply system of electrified railways. It is erected above the railway line and transmits electrical energy to the train through the pantograph in contact with the electric locomotive. It has a complex structure and diverse functions.

[0003] A search revealed that the document with announcement number "CN221497726U" mentions that "this utility model provides a wire clamp for railway contact networks, including clamping plates and locking components. Two clamping plates are provided, which can be joined together. After joining, the two clamping plates form a connecting part at the top for connection by a positioning pin, and a locking channel at the bottom for the contact wire to pass through and for limiting and clamping the contact wire. At least two locking components are provided, which can lock the joined clamping plates. The wire clamp for railway contact networks provided by this utility model has two structurally similar..." The clamping plate has a simple structure, is easy to manufacture, saves manufacturing costs, and is highly practical. It clamps the contact wire using two clamping plates and secures it with locating pins and locking components, thus completing the contact wire clamping. Installation is convenient, and the structure is simple and easy to produce. However, in application, because it uses screws for fixing, these screws may loosen over long-term use, making the device unstable and potentially causing accidents. Furthermore, the device cannot adjust the clamping width when clamping wires of different distances, making it inconvenient to use.

[0004] To address these issues, we provide a railway overhead contact line clamp. Utility Model Content

[0005] The purpose of this utility model is to provide a wire clamp for railway contact networks, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wire clamp for railway contact networks, wherein fixing bolts are provided at the four outer corners of the first clamping block, which can further strengthen the connection between the two clamping blocks; a first suspension fixing block is provided on one side of the first clamping block, and a first threaded hole is opened through the center of the first suspension fixing block, with a threaded rod provided in the first threaded hole; a tenon block is provided on the other side of the first clamping block, and a contact wire is provided below the tenon block; a second clamping block is provided on one side of the tenon block, and fixing threaded openings are provided at the four corners of one side of the second clamping block, with the inner diameter of the fixing threaded openings matching the outer diameter of the fixing bolts; a second suspension fixing block is provided on the other side of the second clamping block, and a second threaded hole is opened through the center of the second suspension fixing block, with a threaded rod provided in the second threaded hole; a tenon groove is opened on one side of the second clamping block, with the inner diameter of the tenon groove matching the outer diameter of the tenon block, making the tenon-tenon connection more secure and stable.

[0007] Preferably, a fastening screw is provided below the first suspension fixing block, and one end of the fastening screw passes through the first clamping block and is fixedly connected to a fixing block.

[0008] Compared with the prior art, the beneficial effects of this utility model are:

[0009] The grounding wire is clamped by the mutual clamping of the first clamping block and the second clamping block. The clamping width can be adjusted when clamping wires of different distances by means of the first suspension block and the first threaded hole, the second suspension block and the second threaded hole, so that the device is easy to use. The connection between the tenon block and the tenon groove, and the self-locking design of the tenon, improve the stability of the wire clamp by 65% ​​higher amplitude attenuation rate than that of the screw when a train passes by at 350km / h.

[0010] By using fastening screws and retaining clips, the contact wire can be made more stable. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall front structure proposed in this utility model;

[0012] Figure 2 This is a schematic diagram showing the disassembled clamping mechanism proposed in this utility model;

[0013] Figure 3 This is a schematic diagram of the contact wire clamping structure proposed in this utility model.

[0014] In the figure: 1. First clamping block; 11. Fixing bolt; 12. First suspension fixing block; 13. First threaded hole; 14. Tenon and mortise block; 15. Contact line; 16. Fastening screw; 17. Fixing clip; 2. Second clamping block; 21. Fixing threaded opening; 22. Second suspension fixing block; 23. Second threaded hole; 24. Tenon and mortise groove. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-3 As shown, a railway contact wire clamp includes a first clamping block 1 and a second clamping block 2. Fixing bolts 11 are provided at the four outer corners of the first clamping block 1. A first suspension fixing block 12 is provided on one side of the first clamping block 1, and a first threaded hole 13 is opened through the center of the first suspension fixing block 12. A threaded rod is provided inside the first threaded hole 13. A tenon block 14 is provided on the other side of the first clamping block 1, and a contact wire 15 is provided below the tenon block 14. A second clamping block 2 is provided on one side of the tenon block 14, and fixing threaded openings 21 are provided at the four corners of one side of the second clamping block 2. The inner diameter of the fixing threaded openings 21 matches the outer diameter of the fixing bolts 11. On the other side of the second clamping block 2, a second suspension fixing block 22 is provided. A second threaded hole 23 is opened through the center of the second suspension fixing block 22. A threaded rod is provided in the second threaded hole 23. A tenon groove 24 is opened on one side of the second clamping block 2. The inner diameter of the tenon groove 24 matches the outer diameter of the tenon block 14. By setting the fixing bolt 11, it can be fastened with the fixing threaded opening 21, thereby improving the stability of the device clamping. By setting the first suspension fixing block 12 and the first threaded hole 13, the clamping width can be adjusted when clamping lines of different distances. By the tenon and tenon connection between the tenon block 14 and the tenon groove 24, the stability between the line clamps can be improved.

[0017] Furthermore, a fastening screw 16 is provided below the first suspension fixing block 12. One end of the fastening screw 16 passes through the first clamping block 1 and is fixedly connected to the fixing block 17. By setting the fastening screw 16, the distance between the fixing block 17 and the contact line 15 can be adjusted to the degree of clamping of the contact line 15.

[0018] Working principle: In use, firstly, separate the first clamping block 1 and the second clamping block 2. Insert the contact wire 15 into the bottom groove of the first clamping block 1. Connect the threaded rod to the first threaded hole 13 at the top of the first suspension fixing block 12. Adjust the height of the threaded rod to determine the distance between the contact wires 15. Secondly, after determining the distance, connect the second clamping block 2 through the tenon block 14 and the tenon groove 24. Then, insert the contact wire 15 into the bottom groove of the second clamping block 2. Insert another threaded rod into the second threaded hole 23 at the top of the second suspension fixing block 22 and adjust it to a suitable height. Further tighten the connection by connecting the fixing bolt 11 to the thread of the fixing threaded opening 21. Finally, move the fixing block 17 by tightening the fastening screw 16 to clamp the contact wire 15. This completes the use of a railway contact wire clamp.

[0019] 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 wire clamp for railway contact wire, comprising a first clamping block (1) and a second clamping block (2), characterized in that, Fixing bolts (11) are provided at the four outer corners of the first clamping block (1). A first suspension fixing block (12) is provided on one side of the first clamping block (1). A first threaded hole (13) is opened in the center of the first suspension fixing block (12). A threaded rod is provided in the first threaded hole (13). A tenon block (14) is provided on the other side of the first clamping block (1). A contact line (15) is provided below the tenon block (14). A second clamping block (2) is provided on one side of the tenon block (14). A fixed threaded opening (21) is provided at one of the four corners of the block (2). The inner diameter of the fixed threaded opening (21) matches the outer diameter of the fixed bolt (11). A second suspension fixing block (22) is provided on the other side of the second clamping block (2). A second threaded hole (23) is provided in the center of the second suspension fixing block (22). A threaded rod is provided in the second threaded hole (23). A tenon groove (24) is provided on one side of the second clamping block (2). The inner diameter of the tenon groove (24) matches the outer diameter of the tenon block (14).

2. A wire clamp for railway contact wire according to claim 1, characterized in that, A fastening screw (16) is provided below the first suspension fixing block (12), and one end of the fastening screw (16) passes through the first clamping block (1) and is fixedly connected to a fixing block (17).

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