Equipotential connecting device for platform door body and steel rail

Abstract

The utility model discloses a platform door body and steel rail equipotential connecting device which comprises a clamping plate, a compression bolt and a compression component, one end of the clamping plate is bent upwards to form a containing groove used for containing the lower portion of one side of a steel rail, and a plurality of threaded through holes matched with the compression bolt in a threaded connection mode are formed in an upper top plate where the containing groove is located. The clamping plate is clamped at the lower part of one side of the steel rail and is pressed and fixed on the steel rail by the pressing bolt; a plurality of threaded rods in threaded connection fit with the compression nuts are arranged on the side face of the other end of the clamping plate, and when the clamping plate is clamped to the lower portion of one side of the steel rail, the threaded rods extend out of the lower portion of the other side of the steel rail; the threaded rod is connected with a pressing component, and the pressing component clamps the clamping plate on the steel rail. And a plurality of threading holes for connecting and fixing equipotential wires are formed in the pressing component. The device and the steel rail are reliably clamped and fixed through pressing force applied by the fastener, and equipotential connection between the platform door body and the steel rail is completed on the premise that the steel rail is not damaged at all.

Description

Technical Field

[0001] The utility model relates to the technical field of safety components for platform doors of urban rail transit stations, in particular to an equipotential connection device for a platform door body and a rail. Background Art

[0002] With the rapid development of urban rail transit in my country, platform door systems are widely used in stations to achieve effective physical isolation between platforms and trains, thereby avoiding danger and interference to passengers during the operation of trains in and out of stations and ensuring personnel safety. The platform door body is usually a metal structure, which has a potential difference with the potential of the train body. If no protective treatment is done, it is easy for passengers to generate step voltage when getting on and off the train, causing electric shock accidents.

[0003] In order to avoid electric shock accidents caused by step voltage for passengers, it is usually necessary to make the platform door body and the rail form the same potential while doing a good job of insulation. There are two specific methods to form the same potential: one method is to drill a hole in the rail, pass one end of the equipotential wire through the hole and fasten it to the rail with bolts, and connect the other end to the metal structure of the platform door body, so as to eliminate the potential difference between the rail and the platform door body, achieve equipotential connection, and then eliminate the hidden danger of step voltage between the platform door body and the train body; from the perspective of engineering practice, this method requires that the drilling of the rail must be carried out accurately at the waist of the rail, and drilling the hole too high or too low can easily cause cracks in the rail or even cause the rail to break. Another method is to weld the equipotential wire directly to the rail, which is very easy to damage the rail structure and generate welding stress, and is currently rarely used in engineering practice.

[0004] Therefore, the urban rail transit platform door installation project urgently needs to develop a simple, reliable, practical device that will not cause any damage to the rails to achieve the equipotential connection between the platform door body and the rails. Utility Model Content

[0005] The utility model provides an equipotential connection device for a platform door body and a rail to solve the problems existing in the prior art. The equipotential connection device clamps and fixes the rail through friction force, and can quickly, simply and effectively reliably connect the equipotential conductor to the rail without causing any damage to the rail.

[0006] The utility model is implemented as follows: a platform door body and rail equipotential connection device, comprising a clamping plate, a clamping bolt, and a clamping member, wherein one end of the clamping plate is bent upward to form a receiving groove for receiving the lower part of one side of the rail, and a plurality of threaded through holes threadedly connected with the clamping bolt are arranged on the upper top plate where the receiving groove is located, so that the clamping plate is clamped at the lower part of one side of the rail and is clamped and fixed on the rail by the clamping bolt;

[0007] A plurality of threaded rods threadedly connected with the clamping nut are arranged on the side surface of the other end of the clamping plate. When the clamping plate is clamped at the lower part of one side of the rail, the threaded rods extend out of the lower part of the other side of the rail. A clamping member is connected to the threaded rods, and the clamping member clamps the clamping plate on the rail. The clamping member is provided with a plurality of threading holes for connecting and fixing equipotential conductors.

[0008] Preferably, a spring washer 1 is arranged between the clamping bolt and the clamping plate, and a set of the spring washer is arranged on the clamping bolt.

[0009] Preferably, the threaded through holes on the clamping plate correspond one-to-one to the threaded rods.

[0010] Preferably, the clamping member includes a clamping plate and a clamping nut, the clamping plate is provided with a plurality of through holes, the clamping plate is sleeved on the threaded rod, and the clamping nut transversely clamps the clamping plate and the clamping plate together with the rail; the threading hole is located on the clamping plate.

[0011] Further preferably, a second spring washer is arranged between the clamping nut and the clamping plate, and the second spring washer is sleeved on the threaded rod.

[0012] Further preferably, a plurality of threading rings are provided on the clamping plate, and the threading holes are formed on the threading rings.

[0013] Further preferably, the clamping plate, the clamping plate, the clamping bolt and the clamping nut are made of metal.

[0014] More preferably, the metal is carbon steel, copper or aluminum.

[0015] Further preferably, the through holes on the clamping plate correspond one-to-one to the threaded rods.

[0016] The advantages and positive effects of the utility model are:

[0017] 1. The urban rail transit platform door body and rail equipotential connection device involved in the utility model adopts a non-rail drilling, non-welding, non-bonding platform door body equipotential conductor and rail non-destructive connection and fixing scheme, and the device and the rail are reliably clamped and fixed by the pressing force applied by the threaded fasteners, and the effective contact between the metals realizes the circuit conduction, thereby eliminating the potential difference between the car body and the platform door body, and completing the equipotential connection between the platform door body and the rail without any damage to the rail.

[0018] 2. The urban rail transit platform door and rail equipotential connection device involved in the utility model has a simple and sophisticated structural design, is easy to install, and is stable and reliable to use, effectively eliminating the danger caused by the step voltage between the car body and the platform door. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A front view of an equipotential connection device provided by an embodiment of the utility model;

[0020] Figure 2 A top view of an equipotential connection device provided in an embodiment of the utility model;

[0021] Figure 3 A front view of a card board provided in an embodiment of the utility model;

[0022] Figure 4 A top view of a card board provided in an embodiment of the utility model;

[0023] Figure 5 A side view of a card board provided in an embodiment of the utility model;

[0024] Figure 6 A front view of a splint provided in an embodiment of the utility model;

[0025] Figure 7 A top view of a splint provided in an embodiment of the utility model;

[0026] Figure 8 A side view of a splint provided in an embodiment of the utility model;

[0027] Fig. 9 This is a schematic diagram of the assembly of the equipotential connection device provided in an embodiment of the utility model.

[0028] In the figure: 1. clamping plate; 1-1. receiving groove; 1-2. threaded through hole; 1-3. threaded rod; 2. clamping bolt; 3. spring washer 1; 4. clamping plate; 4-1. through hole; 4-2. threading ring; 4-3. threading hole; 5. spring washer 2; 6. clamping nut; 7. rail. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] See also Figures 1 to 8 The embodiment of the utility model provides an equipotential connection device between a platform door body and a rail, comprising a clamping plate 1, a clamping bolt 2, and a clamping member, wherein the clamping plate 1 is bent upward at one end to form a receiving groove 1-1 for receiving the lower part of one side of the rail 7, and a plurality of threaded through holes 1-2 threadedly connected with the clamping bolt 2 are arranged on the upper top plate where the receiving groove 1-1 is located, so that the clamping plate 1 is clamped at the lower part of one side of the rail 7 and is clamped and fixed on the rail 7 by the clamping bolt 2; a plurality of threaded rods 1-3 threadedly connected with the clamping nut 6 are arranged on the side surface of the other end of the clamping plate 1, when the clamping plate 1 is clamped at the lower part of one side of the rail 7, the threaded rod 1-3 extends out of the lower part of the other side of the rail 7; a clamping member is connected to the threaded rod 1-3, and the clamping member has an internal thread. The clamping member is tightened to clamp the clamping plate 1 on the rail 7; a plurality of threading holes 4-3 for connecting and fixing the equipotential conductor are arranged on the clamping member.

[0033] As a preferred embodiment, the clamping member includes a clamping plate 4 and a clamping nut 6, a plurality of through holes 4-1 are arranged on the clamping plate 4, the clamping plate 4 is sleeved on the threaded rod 1-3, and the clamping nut 6 clamps the clamping plate 4 and the clamping plate 1 together with the rail 7 laterally, and the clamping and fixing is convenient; the threading hole 4-3 is located on the clamping plate 4.

[0034] As a preferred embodiment, a plurality of threading rings 4-2 are provided on the clamping plate 4, and threading holes 4-3 are formed on the threading rings 4-2 to facilitate the connection of equipotential conductors. The number, angle, and setting position of the threading rings 4-2 are set according to needs.

[0035] It should be noted that the clamping plate 1 can also be replaced by a metal rod with one end being hook-shaped, U-shaped or other similar shapes, and the clamping plate 4 can also be replaced by a metal washer or other similarly shaped metal components.

[0036] As a preferred embodiment, a spring washer 3 is arranged between the clamping bolt 2 and the clamping plate 1 , and the spring washer 3 is sleeved on the clamping bolt 2 , and the spring washer 3 serves as an anti-loosening measure for the clamping bolt 2 .

[0037] As a preferred embodiment, a spring washer 5 is arranged between the clamping nut 6 and the clamping plate 4 , and the spring washer 5 is sleeved on the threaded rod 1 - 3 , and the spring washer 5 serves as an anti-loosening measure for the clamping nut 6 .

[0038] It should be noted that the clamping bolt 2 , the clamping nut 6 and the spring washer are all standard fasteners, which are easy to obtain.

[0039] As a preferred embodiment, the clamping plate 1, the clamping plate 4, the clamping bolt 2, and the clamping nut 6 are made of metal material, and the metal is preferably carbon steel, copper or aluminum, etc., which ensures both the circuit conductivity and the strength of the equipotential connection device.

[0040] As a preferred embodiment, the threaded through holes 1-2 on the clamping plate 1 correspond to the threaded rods 1-3 one by one, and the through holes on the clamping plate 4 correspond to the threaded rods 1-3 one by one. In this embodiment, three threaded through holes 1-2, three threaded rods 1-3, and three through holes 4-1 are provided to ensure the reliability and stability of the connection of the entire equipotential connection device.

[0041] The specific working process of the utility model is as follows:

[0042] When in use, the clamping plate 1 and the clamping plate 4 are clamped and fixed to the lower part of the rail 7 by the clamping bolts 2 and the clamping nuts 6 respectively. Fig. 9 As shown, the equipotential conductor is connected and fixed to the threading ring 4 - 2 of the clamping plate 4 , so as to realize a reliable and effective circuit physical connection between the platform door body and the rail 7 .

[0043] The urban rail transit platform door body and rail equipotential connection device involved in the utility model adopts a non-rail drilling, non-welding, non-bonding platform door body equipotential conductor and rail non-destructive connection and fixing scheme, and the device and the rail are reliably clamped and fixed by the pressing force applied by the threaded fasteners, and the effective contact between the metals realizes the circuit conduction, thereby eliminating the potential difference between the car body and the platform door body, and completing the equipotential connection between the platform door body and the rail 7 without any damage to the rail. The structural design is simple and exquisite, easy to install, stable and reliable to use, and effectively eliminates the danger caused by the step voltage between the car body and the platform door body.

[0044] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A device for connecting a platform door body to a rail with equal potential, characterized in that: It includes a clamping plate, a clamping bolt, and a clamping member. The clamping plate is bent upward at one end to form a receiving groove for receiving the lower part of one side of the rail. The upper top plate where the receiving groove is located is provided with a plurality of threaded through holes that are threadedly connected with the clamping bolts, so that the clamping plate is clamped at the lower part of one side of the rail and is clamped and fixed on the rail by the clamping bolts. A plurality of threaded rods threadedly connected with the clamping nut are arranged on the side surface of the other end of the clamping plate. When the clamping plate is clamped at the lower part of one side of the rail, the threaded rods extend out of the lower part of the other side of the rail. A clamping member is connected to the threaded rods, and the clamping member clamps the clamping plate on the rail. The clamping member is provided with a plurality of threading holes for connecting and fixing equipotential conductors.

2. The equipotential connection device between the platform door body and the rail according to claim 1 is characterized in that: A spring washer is arranged between the clamping bolt and the clamping plate, and a set of the spring washer is arranged on the clamping bolt.

3. The equipotential connection device between the platform door body and the rail according to claim 1, characterized in that: The threaded through holes on the clamping plate correspond one to one with the threaded rods.

4. The equipotential connection device between the platform door body and the rail according to claim 1, characterized in that: The clamping member includes a clamping plate and a clamping nut. The clamping plate is provided with a plurality of through holes. The clamping plate is sleeved on the threaded rod. The clamping nut laterally clamps the clamping plate and the clamping plate together with the rail. The threading hole is located on the clamping plate.

5. The equipotential connection device between the platform door body and the rail according to claim 4, characterized in that: A second spring washer is arranged between the clamping nut and the clamping plate, and the second spring washer is sleeved on the threaded rod.

6. The equipotential connection device between the platform door body and the rail according to claim 4, characterized in that: A plurality of threading rings are arranged on the clamping plate, and the threading holes are formed on the threading rings.

7. The equipotential connection device between the platform door body and the rail according to claim 4, characterized in that: The clamping plate, the clamping plate, the clamping bolts and the clamping nuts are made of metal materials.

8. The equipotential connection device between the platform door body and the rail according to claim 7, characterized in that: The metal is carbon steel, copper or aluminum.

9. The equipotential connection device between the platform door body and the rail according to claim 4, characterized in that: The through holes on the clamping plate correspond to the threaded rods one by one.

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