Railway track backflow device

Abstract

The utility model discloses a railway track backflow device which comprises a conductive hook, and the conductive hook comprises a straight part and a bent part which are integrated. The outer side of the bending part of the conductive hook is fixedly provided with a wire sleeve, the wire sleeve is provided with at least one through hole, the outer side of the through hole is fixedly provided with a first nut which is matched with the axis of the through hole, and each first nut is provided with a first screw which is in threaded connection with the first nut. The first screws penetrate through the first nuts and the through holes, and the tail ends of the first screws abut against and are matched with stainless steel pressing sheets arranged in the wire sleeves. A clamping block is slidably arranged on the straight portion of the conductive hook, and a clamping groove is formed in the side, opposite to the bent portion of the conductive hook, of the clamping block. According to the utility model, the installation firmness of the return wire can be realized, and the conductive stability of the return wire during return operation is improved; and the operation method is simple and easy to implement, so that the installation efficiency of the return line is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of railway official equipment technology, and in particular to a railway track return device. Background Technology

[0002] The railway track return wire is a 70-square-millimeter copper conductor used by government departments to connect the track circuit during rail replacement work (according to Article 2.5.13 of the General-Speed ​​Railway Safety Regulations). Currently, after removing rust from the contact area between the rail base and the return wire, the two ends of the return wire are fixed to the rails on both sides by tightening screws with a wrench to achieve electrical connection. However, this installation method results in a long installation time and slow installation speed, and the stability of the return wire is poor, causing poor conductivity and frequently leading to track circuit interruptions, thus affecting personal safety. Therefore, a railway track return device needs to be developed. Utility Model Content

[0003] The purpose of this utility model is to provide a railway track return device to solve the technical problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model discloses a railway track return device, including a conductive hook, which comprises an integral straight portion and a bent portion. A wire sleeve is fixedly disposed on the outer side of the bent portion of the conductive hook. At least one through hole is opened on the wire sleeve, and a first nut that mates with the axis of the through hole is fixedly disposed on the outer side of the through hole. Each first nut is provided with a first screw that is threadedly connected to it. Each first screw passes through the first nut and the through hole, and its end abuts against a stainless steel pressure plate disposed inside the wire sleeve. A clamping block is slidably disposed on the straight portion of the conductive hook, and a clamping groove is opened on the side of the clamping block opposite to the bent portion of the conductive hook.

[0006] Furthermore, a second nut is fixedly provided at the end of the bent portion of the conductive hook, and a second screw is provided on the second nut for threaded connection with it.

[0007] Furthermore, a handle perpendicular to the second screw is fixedly provided on the nut.

[0008] Furthermore, a connecting sleeve is fitted onto the straight portion of the conductive hook near its end, and a spring is fitted onto the portion of the conductive hook located between the clamping block and the connecting sleeve.

[0009] Furthermore, the conductive hook is fixedly provided with a limiting boss at the location between its bent portion and the clamping block.

[0010] Furthermore, an external thread is provided on the outer peripheral wall of the straight portion of the conductive hook away from its bent portion, and a third nut is fixedly provided at the end of the connecting sleeve away from the clamping block, which is threadedly connected to the straight portion of the conductive hook.

[0011] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0012] In use, the end of the return wire is inserted entirely into the inside of the conductor sleeve. Tightening the first screws secures the stainless steel pressure plate inside the conductor sleeve, thus effectively fixing the return wire. The stainless steel pressure plate and the return wire are tightly connected, changing the force from a point to a surface, increasing the contact area and ensuring a firm installation of the return wire, thereby improving its conductivity stability during reflow operations.

[0013] In addition, this utility model uses the guide bend and the clamping groove of the clamping block to fix the conductive hook to both sides of the bottom of the track. When installing the return line, no tools or equipment are needed, the operation method is simple and easy, and the installation efficiency of the return line is significantly improved. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram showing the connection between this utility model and the return line;

[0017] Explanation of reference numerals in the attached drawings: 1. Conductive hook; 2. Wire sleeve; 3. First nut; 4. First screw; 5. Stainless steel pressure plate; 6. Return line; 7. Clamping block; 8. Clamping groove; 9. Second nut; 10. Second screw; 11. Handle; 12. Connecting sleeve; 13. Spring; 14. Limiting boss; 15. Third nut. Detailed Implementation

[0018] like Figures 1-2 As shown, a railway track return device includes a conductive hook 1, which includes an integral straight section and a bent section.

[0019] The outer side of the bent portion of the conductive hook 1 is fixedly provided with a wire sleeve 2 by welding. The wire sleeve 2 has at least one through hole and a first nut 3 that is aligned with its axis is fixedly provided on the outer side of the through hole. Each first nut 3 is equipped with a first screw 4 that is threadedly connected to it. Each first screw 4 passes through the first nut 3 and the through hole and its end abuts against a stainless steel pressure plate 5 provided in the wire sleeve 2.

[0020] In use, the end of the return line 6 is inserted entirely into the wire sleeve 2. The return line 6 is effectively fixed by tightening the first screws 4 to press against the stainless steel pressure plate 5 inside the wire sleeve 2. The stainless steel pressure plate 5 and the return line 6 are tightly connected, changing the force from a point to a surface. This increases the contact area, ensuring a more secure installation of the return line 6 and improving its conductivity stability during reflow operations.

[0021] A clamping block 7 is slidably installed on the straight part of the conductive hook 1. A clamping groove 8 is provided on the side of the clamping block 7 opposite to the bent part of the conductive hook 1. In this utility model, the conductive hook 1 is fixedly clamped to both sides of the bottom of the track by the bent part of the guide hook 1 and the clamping groove 8 of the clamping block 7.

[0022] The end of the bent portion of the conductive hook 1 is fixedly fitted with a second nut 9 by welding. A second screw 10 is threaded onto the second nut 9. A handle 11 perpendicular to the screw 9 is fixedly fitted onto the nut of the second screw 9 by welding. By rotating the handle 11, the second screw 9 abuts against one side of the rail base, improving the connection between the bent portion of the conductive hook and the rail base.

[0023] A connecting sleeve 12 is fitted onto the straight portion of the conductive hook 1 near its end. A spring 13 is fitted onto the conductive hook at the portion located between the clamping block 7 and the connecting sleeve 12. A limiting boss 14 is fixedly provided on the conductive hook 1 at the portion located between its bent portion and the clamping block 7. By setting a spring between the clamping block and the connecting sleeve, the ease of installation of the conductive hook is ensured, and sufficient support force is provided to the clamping block under the action of the spring, allowing the clamping groove of the clamping block to fit tightly with the other end of the rail bottom.

[0024] In addition, an external thread is provided on the outer peripheral wall of the straight part of the conductive hook 1 away from its bent part. The end of the connecting sleeve 12 away from the clamping block 7 is fixedly provided with a third nut 15 that is threadedly connected to the straight part of the conductive hook 1 by welding. By rotating the third nut 15, the spring can be fixed and the elastic force can be adjusted.

[0025] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A railway track return device, characterized in that: The device includes a conductive hook, comprising an integral straight portion and a bent portion; a wire sleeve is fixedly disposed on the outer side of the bent portion of the conductive hook, the wire sleeve has at least one through hole and a first nut that mates with its axis is fixedly disposed on the outer side of the through hole, each first nut is provided with a first screw that is threadedly connected to it, each first screw passes through the first nut and the through hole and its end abuts against a stainless steel pressure plate disposed inside the wire sleeve; a clamping block is slidably disposed on the straight portion of the conductive hook, and a clamping groove is provided on the side of the clamping block opposite to the bent portion of the conductive hook.

2. The railway track return device according to claim 1, characterized in that: The end of the bent portion of the conductive hook is fixedly provided with a second nut, and a second screw is provided on the second nut for threaded connection.

3. The railway track return device according to claim 2, characterized in that: The second screw has a handle that is perpendicular to it fixed on the nut.

4. The railway track return device according to claim 1, characterized in that: A connecting sleeve is fitted on the straight portion of the conductive hook near its end, and a spring is fitted on the conductive hook at the portion located between the clamping block and the connecting sleeve.

5. The railway track return device according to claim 4, characterized in that: The conductive hook is fixedly provided with a limiting boss at the location between its bent portion and the clamping block.

6. The railway track return device according to claim 4, characterized in that: The outer peripheral wall of the straight part of the conductive hook away from its bent part is provided with an external thread, and the end of the connecting sleeve away from the clamp is fixedly provided with a third nut that is threadedly connected to the straight part of the conductive hook.

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