Bolt assembly for rail grounding

Abstract

The utility model discloses a bolt assembly for track grounding, which comprises a grounding screw arranged on a power connection mounting rack and a grounding bus arranged at one end of the grounding screw, and a mounting nut, a grounding nut and a reinforcing nut are screwed at one end of the grounding screw. A grounding gasket and a grounding bus are installed between the installation nut and the grounding nut, the grounding gasket is clamped on the outer side of the grounding bus, the reinforcing nut is pressed on one side of the grounding nut, a limiting groove is formed in one side of the grounding nut, an eccentric protrusion is arranged on one side of the reinforcing nut, and the limiting groove is matched with the eccentric protrusion. The eccentric bulge is inserted into the inner side of the limiting groove; through the designed grounding gasket, the grounding nut and the reinforcing nut, the grounding bus is installed through clamping of the grounding gasket in use, and clamping of the anti-skid pit is matched to ensure that the grounding nut and the installation nut are pressed on the grounding gasket more stably; and during use, the honeycomb plate and the chromium-zirconium-copper reinforced alloy plate are matched to ensure that the supporting effect is better.

Description

Technical Field

[0001] This utility model belongs to the technical field of track grounding bolts, specifically relating to a bolt assembly for track grounding. Background Technology

[0002] The track grounding system is a core component for ensuring the electrical safety of rail transit, and its reliability directly affects the effectiveness of signal transmission and lightning protection.

[0003] Traditional grounding bolt assemblies mainly consist of carbon steel bolts, flat washers, and hexagonal nuts, which are used to fix the grounding busbar by threaded crimping. However, after long-term use, the continuous mechanical vibration generated by the operation of rail vehicles can easily cause the ordinary nuts to loosen. Therefore, it is necessary to design a bolt assembly for rail grounding to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a bolt assembly for track grounding to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a track grounding bolt assembly, comprising a grounding screw mounted on a power connection mounting frame and a grounding busbar mounted on one end of the grounding screw. One end of the grounding screw is screwed with a mounting nut, a grounding nut, and a reinforcing nut. A grounding washer and a grounding busbar are installed between the mounting nut and the grounding nut. The grounding washer is clamped on the outside of the grounding busbar. The reinforcing nut is pressed against one side of the grounding nut. A limiting groove is formed on one side of the grounding nut. An eccentric protrusion is provided on one side of the reinforcing nut. The eccentric protrusion is inserted into the inside of the limiting groove.

[0006] Preferably, the grounding pad includes a chromium-zirconium-copper reinforced alloy plate, a honeycomb plate is installed on the inner side of the chromium-zirconium-copper reinforced alloy plate, and an Ag-TiN nanocomposite coating is provided on the outer side of the chromium-zirconium-copper reinforced alloy plate.

[0007] Preferably, one side of the grounding pad is provided with an anti-slip recess, and the grounding nut and the mounting nut are engaged in the anti-slip recess.

[0008] Preferably, a mounting washer is installed on the outer side of one end of the grounding screw, and the mounting washers are symmetrically installed on both sides of the power connection mounting bracket. A support spring is installed between the mounting washers, and the grounding screw is tightly pressed and fixed to the outer side of the mounting washer by a mounting nut.

[0009] Preferably, the mounting pad includes an arc-shaped piece, with support plates integrally provided at both ends of the arc-shaped piece, the arc-shaped pieces being supported and stacked together by the support plates, and a limiting groove provided on one side of the arc-shaped piece.

[0010] Preferably, the support spring is configured as a conical spring washer, and the support spring is engaged inside the limiting groove.

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

[0012] 1. The grounding busbar is installed by clamping the grounding pad, grounding nut and reinforcing nut through the design of the grounding pad, and the anti-slip pit ensures that the grounding nut and the installation nut are pressed more stably on the grounding pad. The honeycomb plate and chromium zirconium copper reinforced alloy plate ensure better support during use.

[0013] 2. With the designed mounting pads and support springs, the device is supported on the power connection mounting frame during use. It is then fixed to the power connection mounting frame with the grounding screws and mounting nuts. During installation, the elasticity of the arc-shaped plate and the support springs ensures a more stable fixation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the mounting gasket structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the support spring structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the reinforcing nut structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the grounding pad structure of this utility model;

[0019] In the diagram: 1. Power connection mounting bracket; 2. Grounding busbar; 3. Grounding screw; 4. Mounting washer; 5. Support spring; 6. Mounting nut; 7. Grounding washer; 8. Grounding nut; 9. Reinforcing nut; 10. Arc-shaped piece; 11. Support plate; 12. Limiting groove; 13. Eccentric protrusion; 14. Limiting groove; 15. Honeycomb panel; 16. Chromium-zirconium-copper reinforced alloy plate; 17. Ag-TiN nanocomposite coating; 18. Anti-slip pit. Detailed Implementation

[0020] 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.

[0021] Example 1: Please refer to Figures 1 to 5 This utility model provides a technical solution: a track grounding bolt assembly, including a grounding screw 3 mounted on a power connection mounting bracket 1 and a grounding busbar 2 mounted on one end of the grounding screw 3. A mounting nut 6, a grounding nut 8, and a reinforcing nut 9 are screwed onto one end of the grounding screw 3. A grounding washer 7 and the grounding busbar 2 are installed between the mounting nut 6 and the grounding nut 8. The grounding washer 7 is clamped on the outside of the grounding busbar 2. The grounding busbar 2 and the grounding washer 7 are mounted on one end of the grounding screw 3, with the grounding washer 7 clamped on the outside of the grounding busbar 2. The grounding nut 8 is screwed onto the grounding screw 3 and tightly pressed against the grounding washer 7. The mounting nut 6, in conjunction with the grounding nut 6, clamps and fixes the grounding washer 7 and the grounding busbar 2. The reinforcing nut 9 is pressed onto one side of the grounding nut 8. A limiting groove 14 is provided on one side of the grounding nut 8, and a [missing information] is provided on one side of the reinforcing nut 9. An eccentric protrusion 13 is inserted into the inner side of the limiting groove 14. The reinforcing nut 9 is screwed onto the grounding screw 3, and the eccentric protrusion 13 is inserted into the grounding nut 8. The eccentric protrusion 13 is pressed tightly against the inner wall of the limiting groove 14 to strengthen the limiting of the grounding nut 8. The grounding pad 7 includes a chromium zirconium copper reinforced alloy plate 16. A honeycomb plate 15 is installed on the inner side of the chromium zirconium copper reinforced alloy plate 16. An Ag-TiN nanocomposite coating 17 is provided on the outer side of the chromium zirconium copper reinforced alloy plate 16. During use, it can enhance the compressive strength of the grounding pad 7 and ensure its conductivity. An anti-slip pit 18 is provided on one side of the grounding pad 7. The grounding nut 8 and the mounting nut 6 are engaged in the anti-slip pit 18. During use, the anti-slip pit 18 engages with the grounding nut 8 and the mounting nut 6 to ensure greater stability when the grounding pad 7 is tightly pressed and fixed.

[0022] As can be seen from the above description, this utility model has the following beneficial effects: When in use, the grounding busbar 2 is installed by clamping the grounding pad 7, and the anti-slip pit 18 ensures that the grounding nut 8 and the installation nut 6 are pressed more stably on the grounding pad 7. When in use, the honeycomb plate 15 and the chromium zirconium copper reinforced alloy plate 16 work together to ensure better support.

[0023] Example 2: Please refer to Figures 1 to 5As shown, based on Embodiment 1, this utility model provides a technical solution: A mounting washer 4 is installed on the outer side of one end of the grounding screw 3, and the mounting washer 4 are symmetrically installed on both sides of the power connection mounting frame 1. A support spring 5 is installed between the mounting washer 4. The grounding screw 3 is tightly fixed to the outer side of the mounting washer 4 by a mounting nut 6. The mounting washer 4 are symmetrically stacked on both sides of the power connection mounting frame 1, and the support spring 5 is installed between the mounting washer 4. The grounding screw 3 passes through the mounting washer 4, the support spring 5, and the power connection mounting frame 1. The mounting nut 6 is screwed in and fixed; the mounting gasket 4 includes an arc-shaped piece 10, with a support plate 11 integrally provided at both ends of the arc-shaped piece 10. The arc-shaped pieces 10 are supported and stacked by the support plate 11. A limit groove 12 is provided on one side of the arc-shaped piece 10. The elasticity of the arc-shaped piece 10 and the support spring 5 ensures that the grounding screw 3 and the mounting nut 6 can be stably fixed to the power connection mounting bracket 1; the support spring 5 is set as a conical spring washer. The support spring 5 is engaged inside the limit groove 12, which ensures that the support spring 5 has a better effect during installation and use.

[0024] Using the above technical solution, during use, the mounting pad 4 and the support spring 5 are used to support the device on the power connection mounting frame 1, and the device is fixed on the power connection mounting frame 1 with the grounding screw 3 and the mounting nut 6. During installation, the elasticity of the arc-shaped piece 10 and the support spring 5 ensures a more stable fixation.

[0025] The working principle and usage process of this utility model are as follows: During use, mounting pads 4 are symmetrically stacked on both sides of the power connection mounting frame 1, with support springs 5 ​​installed between the mounting pads 4. Grounding screws 3 pass through the mounting pads 4, support springs 5, and the power connection mounting frame 1, and are secured by screwing on mounting nuts 6. The mounting nuts 6 and grounding screws 3 press against the mounting pads 4. The elasticity of the arc-shaped piece 10 and the support springs 5 ​​ensures stable fixation between the grounding screws 3, mounting nuts 6, and the power connection mounting frame 1. Then, the grounding busbar... 2 and the grounding pad 7 are installed at one end of the grounding screw 3, and the grounding pad 7 is clamped on the outside of the grounding busbar 2. The grounding nut 8 is screwed on the grounding screw 3 and pressed tightly on the grounding pad 7. The installation nut 6 is used to clamp and fix the grounding pad 7 and the grounding busbar 2. Then the reinforcing nut 9 is screwed on the grounding screw 3, and the eccentric protrusion 13 is inserted into the grounding nut 8. The eccentric protrusion 13 is pressed tightly against the inner wall of the limiting groove 14 to strengthen the limiting of the grounding nut 8, thereby ensuring that the grounding busbar 2 is more stable after it is fixed.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A bolt assembly for track grounding, comprising a grounding screw (3) mounted on a power connection mounting bracket (1) and a grounding busbar (2) mounted on one end of the grounding screw (3), characterized in that: One end of the grounding screw (3) is screwed with a mounting nut (6), a grounding nut (8) and a reinforcing nut (9). A grounding washer (7) and a grounding busbar (2) are installed between the mounting nut (6) and the grounding nut (8). The grounding washer (7) is clamped on the outside of the grounding busbar (2). The reinforcing nut (9) is pressed on one side of the grounding nut (8). A limiting groove (14) is opened on one side of the grounding nut (8). An eccentric protrusion (13) is provided on one side of the reinforcing nut (9). The eccentric protrusion (13) is inserted into the inside of the limiting groove (14).

2. The bolt assembly for track grounding according to claim 1, characterized in that: The grounding pad (7) includes a chromium-zirconium-copper reinforced alloy plate (16), a honeycomb plate (15) is installed on the inner side of the chromium-zirconium-copper reinforced alloy plate (16), and an Ag-TiN nanocomposite coating (17) is provided on the outer side of the chromium-zirconium-copper reinforced alloy plate (16).

3. A bolt assembly for track grounding according to claim 1, characterized in that: The grounding pad (7) has an anti-slip recess (18) on one side, and the grounding nut (8) and the mounting nut (6) are engaged in the anti-slip recess (18).

4. A bolt assembly for track grounding according to claim 1, characterized in that: One end of the grounding screw (3) is fitted with a mounting washer (4), and the mounting washer (4) is symmetrically installed on both sides of the power connection mounting bracket (1). A support spring (5) is installed between the mounting washer (4), and the grounding screw (3) is pressed and fixed to the outside of the mounting washer (4) by the mounting nut (6).

5. A bolt assembly for track grounding according to claim 4, characterized in that: The mounting pad (4) includes an arc-shaped piece (10), with a support plate (11) integrally provided at both ends of the arc-shaped piece (10). The arc-shaped pieces (10) are supported and stacked together by the support plate (11), and a limit groove (12) is provided on one side of the arc-shaped piece (10).

6. A bolt assembly for track grounding according to claim 5, characterized in that: The support spring (5) is configured as a conical spring washer, and the support spring (5) is engaged inside the limiting groove (12).

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