A connection structure for contact rail

Abstract

A connection structure for a contact rail relates to the field of rail transit technology. It includes a guide, two adjacent sections of contact rails, a conductor and a compensation part, wherein the compensation part includes a plurality of conductive compensation plates; the two ends of the guide are respectively connected to the two adjacent sections of the contact rails; a plurality of rotating shafts are arranged along the vertical direction of the current receiving working surface of the guide and / or the contact rail, one end of any conductive compensation plate is supported and connected to the guide and / or the contact rail through any rotating shaft, and the current receiving working surface of any conductive compensation plate and the current receiving working surface of the contact rail are preset to be located in the same plane; the compensation part completely covers the telescopic gap between the two adjacent sections of the contact rails in the running direction, and the length of the compensation part along the running direction and / or the length of the guide along the running direction is greater than the telescopic gap between the contact rails. It can effectively eliminate the length change of the contact rail caused by the influence of temperature, and in the process can ensure the normal operation of the contact rail.

Description

Technical Field

[0001] The present application relates to the field of rail transit technology, and in particular to a connection structure for a contact rail. Background Art

[0002] The contact rail in rail transit is a mechanism used to provide electrical energy to the EMU. The EMU is equipped with a current-collecting shoe, which contacts the contact rail as the EMU moves, and the contact rail provides corresponding electricity.

[0003] The patent document with application number CN202010147061.6 discloses an expansion joint and a rail vehicle power supply system, wherein the expansion joint includes: a first contact rail, a second contact rail, a first slide plate rotatably connected to the first contact rail, and a second slide plate rotatably connected to the second contact rail; wherein the rotation axes of the first slide plate and the second slide plate are parallel and can rotate in a vertical plane; the first slide plate and the second slide plate are distributed and contacted in the vertical direction, and the contact surface of the first slide plate and the second slide plate is an inclined surface and slides along the inclined surface, and the inclined surface has an angle with the horizontal direction, and the angle is an acute angle. The application also discloses an expansion joint, which ensures that the first slide plate and the second slide plate are in close contact in both the extended state and the contracted state, and there is no gap between the first slide plate and the second slide plate, that is, it ensures that the current receiving surface is always a plane and has no gap during the extension and contraction process, thereby eliminating the noise when the rail vehicle passes. Although this method can reduce the noise generated when rail vehicles pass, in this method, the first slide plate is coaxially arranged with the first contact rail and extends axially along the first contact rail, and the second slide plate is coaxially arranged with the second contact rail and extends axially along the second contact rail. Since it is an overall rotating method, it is not conducive to long-term use, and the first slide plate and the second slide plate are prone to Z-direction displacement after long-term use, that is, longitudinal displacement perpendicular to the running direction, resulting in uneven contact surface.

[0004] In addition, the patent document with application number 201610175914.0 discloses a telescopic connector without expansion joints, which is composed of two contact rail segments and a limiting guide, a contact surface slider, and a conductor. The two contact rail segments are connected and matched with a sliding gap through the limiting guide; at least one contact surface slider is installed on the limiting guide or the contact rail segment base; the outer contact surface of the contact surface slider and the outer contact surface of the contact rail segment are on the same working surface; the contact surface slider partially or completely covers the expansion gap between the two contact rail segments; the contact surface slider has at least one edge, and the angle between the edge line and the direction of expansion and contraction of the contact rail segment is less than 90°. When the two contact rail segments are displaced in the length direction and the expansion and contraction gap changes, the contact surface slider will be displaced in a direction perpendicular to the expansion and contraction of the contact rail segment on the contact working surface to adapt to the change of the expansion and contraction gap; at the same time, at least one conductor is connected to the limiting guide or / and the two contact rail segments to realize electrical conduction. Although this scheme can compensate for the thermal expansion and contraction of the contact rail system, mechanical displacement, and eliminate adjacent forces and expansion and contraction resistance. However, in actual use, when the two contact rail segments produce relative displacement due to thermal barriers and shrinkage, the contact surface slider will produce a certain displacement in the vertical direction, thereby eliminating the relative displacement of the two contact rail segments; however, the lateral movement distance is relatively small, which requires a high sliding accuracy of the compensation plate and is more complicated to manufacture and install.

[0005] In view of this, this application is hereby filed. Summary of the invention

[0006] The purpose of the present application is to provide a connection structure for a contact rail, which can effectively eliminate the length change of the contact rail caused by temperature, ensure the normal operation of the train, and achieve seamless connection during the extension and retraction process of the contact rail.

[0007] The embodiment of the present application is implemented as follows:

[0008] A connection structure for a contact rail, comprising a guide, two adjacent sections of the contact rail, a conductor and a compensation part, wherein the compensation part comprises a plurality of conductive compensation plates; two ends of the guide are respectively connected to the two adjacent sections of the contact rail;

[0009] A plurality of rotating shafts are arranged along the vertical direction of the current receiving working surface of the guide member and / or the contact rail, one end of any conductive compensation plate is supported and connected to the guide member and / or the contact rail through any rotating shaft, and the current receiving working surface of any conductive compensation plate and the current receiving working surface of the contact rail are preset to be located in the same plane; the compensation part completely covers the telescopic gap between two adjacent contact rails in the running direction, and the length of the compensation part in the running direction and / or the length of the guide member in the running direction is greater than the telescopic gap between the contact rails;

[0010] The guide member and / or the contact rail are connected to the conductor, and the conductor and the conductive compensation plate are respectively located on opposite sides of the guide member and / or the contact rail; a rotating contact edge is set between the conductive compensation plate and the guide member, and / or between the conductive compensation plate and the contact rail, and / or between adjacent conductive compensation plates, and the angle between the rotating contact edge and the length direction of the contact rail is non-right angle; the conductive compensation plate rotates along the rotating shaft to adapt to the change of the telescopic gap.

[0011] Furthermore, the guide member does not rotate, but slides along the running direction with two adjacent contact rails.

[0012] Furthermore, a torsion spring is arranged between the outer periphery of any rotating shaft and any conductive compensation plate; or a sliding block or a sliding groove structure is arranged between adjacent conductive compensation plates.

[0013] Further, the rotational contact edge is a straight line or an arc-shaped edge.

[0014] Furthermore, two ends of the guide member are respectively connected to two adjacent contact rail sections by insertion and / or clamping.

[0015] Furthermore, the guide member includes two adjacent guide bodies and a guide shaft, the two ends of the guide shaft are respectively connected to the inner ends of the two adjacent guide bodies by insertion and / or clamping, and the outer ends of the two adjacent guide bodies are respectively connected to the two adjacent contact rails.

[0016] Furthermore, more than two conductive compensation plates are provided, and more than two rotating shafts are provided.

[0017] Furthermore, during the rotation of the conductive compensation plate, its rotating contact edge always keeps in contact with the contact rail or the rotating contact edge of an adjacent conductive compensation plate at least at one point.

[0018] Further, the contact rail is provided with a connecting groove for inserting the guide member.

[0019] Furthermore, the guide member is fixed on the mounting base through a supporting device.

[0020] The beneficial effects of the embodiments of the present application are:

[0021] The connection structure for the contact rail provided in the embodiment of the present application can connect two adjacent sections of the contact rail by means of a guide member, and play a role of supporting, connecting and limiting the two adjacent sections of the contact rail, thereby ensuring the stability of the two adjacent sections of the contact rail during thermal expansion and contraction, thereby making the accuracy change smaller during use. In addition, the use of a conductive compensation plate in conjunction with the contact rail rotation compensation method can effectively eliminate the length change of the contact rail caused by temperature, thereby ensuring the normal operation of the train and achieving seamless connection during the extension and contraction process of the contact rail.

[0022] In addition, through the above design, there are rotating contact edges between the conductive compensation plates and between the conductive compensation plates and the contact rails or guide members, which effectively limits the displacement of the conductive compensation plates, so that the left and right sides and the upper and lower sides of the conductive compensation plates are all under pressure, which can effectively ensure the accuracy and stability of the device during long-term use, avoid the generation of gaps between the conductive compensation plates or between them and the contact rails after long-term use, thereby avoiding the problem of noise when the moving vehicle passes; and the conductive compensation plates are bridged across two adjacent contact rails, thereby ensuring that the conductive compensation plates do not affect the movement of the contact rails during rotation, and the conductive compensation plates are not prone to Z-direction displacement, and the current-receiving working surface remains flat after long-term use.

[0023] In general, the connection structure for the contact rail provided in the embodiment of the present application can effectively eliminate the length change of the contact rail caused by the temperature, and in the process can ensure the normal operation of the contact rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the structure provided in Example 1 of the present application;

[0026] Figure 2 An exploded diagram provided for Example 1 of the present application;

[0027] Figure 3 A schematic diagram of the installation of a torsion spring provided in Example 1 of the present application;

[0028] Figure 4 A schematic diagram of the working state provided in Example 1 of the present application;

[0029] Figure 5 A schematic diagram of the structure of Example 2 provided in the embodiments of the present application;

[0030] Figure 6 A schematic diagram of another implementation of Example 2 provided in the present application;

[0031] Figure 7 A schematic diagram of the working state of another implementation method of Example 2 provided in the embodiments of the present application;

[0032] Figure 8 A schematic diagram of the structure of a slider and a slide groove provided in an embodiment of the present application;

[0033] Fig. 9 A schematic diagram of another implementation of the first contact rail and the second contact rail provided in Example 1 of the present application.

[0034] Icons: 1-first contact rail, 2-second contact rail, 3-guide member, 31-first guide body, 32-second guide body, 4-rotating shaft, 41-first rotating shaft, 42-second rotating shaft, 43-third rotating shaft, 44-fourth rotating shaft, 5-conductive compensation plate, 51-first conductive compensation plate, 52-second conductive compensation plate, 53-third conductive compensation plate, 54-fourth conductive compensation plate, 6-torsion spring, 61-first torsion spring, 62-second torsion spring, 7-rotating contact edge, 71-first rotating contact edge, 72-third rotating contact edge, 73-fourth rotating contact edge, 9-support device, 10-guide shaft, 11-conductor. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0039] In addition, the terms "parallel", "vertical", etc. do not mean that the components must be absolutely parallel or vertical, but can be slightly tilted. For example, "parallel" only means that its direction is more parallel than "vertical", and does not mean that the structure must be completely parallel, but can be slightly tilted.

[0040] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0041] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] Example 1

[0043] Please refer to Figure 1-4 This embodiment provides a connection structure for a contact rail, including a first contact rail 1, a second contact rail 2, a guide member 3, a rotating shaft 4, a conductive compensation plate 5, a torsion spring 6, a rotating contact edge 7, a supporting device 9 and a guide shaft 10.

[0044] The contact rail comprises a first contact rail 1 and a second contact rail 2, and the two ends of the guide member 3 are respectively connected to the first contact rail 1 and the second contact rail 2; a plurality of rotating shafts 4 are arranged along the vertical direction of the current receiving working surface of the guide member 3 and / or the contact rail, and one end of any conductive compensation plate 5 is supported and connected to the guide member 3 and / or the contact rail through any rotating shaft 4, and the current receiving working surface of any conductive compensation plate 5 and the current receiving working surface of the contact rail are preset to be located in the same plane; the compensation part completely covers the telescopic gap between two adjacent contact rails in the running direction, and the length of the compensation part along the running direction and / or the length of the guide member 3 along the running direction is greater than the telescopic gap between the first contact rail 1 and the second contact rail 2;

[0045] The guide member 3 and / or the contact rail are connected to the conductor 11, and the conductor 11 and the conductive compensation plate 5 are respectively located on opposite sides of the guide member 3 and / or the contact rail; a rotating contact edge 7 is set between the conductive compensation plate 5 and the guide member 3, and / or between the conductive compensation plate 5 and the contact rail, and / or between adjacent conductive compensation plates 5, and the angle between the rotating contact edge 7 and the length direction of the contact rail is non-right angle; the conductive compensation plate 5 rotates along the rotating shaft 4 to adapt to the change of the telescopic gap.

[0046] The guide member 3 can be used to connect the first contact rail 1 and the second contact rail 2, and plays the role of supporting, connecting and limiting the first contact rail 1 and the second contact rail 2, thereby ensuring the stability of the first contact rail 1 and the second contact rail 2 during thermal expansion and contraction, so that the accuracy changes less during use. In addition, the conductive compensation plate 5 is used in conjunction with the contact rail rotation compensation method to effectively eliminate the length change of the contact rail caused by temperature, ensure the normal operation of the train, and achieve seamless connection during the extension and contraction of the contact rail.

[0047] In addition, in the present application, it is preferred that the guide member does not rotate and slides with two adjacent contact rails along the running direction. In this arrangement, the guide member only slides laterally, which is more conducive to guiding the conductive compensation plate and the contact rail laterally and avoiding Z-direction displacement.

[0048] In addition, through the above design, there are rotating contact edges 7 between the conductive compensation plates 5 and between the conductive compensation plates 5 and the contact rail or guide member 3, which effectively limits the displacement of the conductive compensation plates 5, so that the left and right sides and the upper and lower sides of the conductive compensation plates 5 are all under pressure, which can effectively ensure the accuracy and stability of the device during long-term use, avoid the generation of gaps between the conductive compensation plates 5 or between them and the contact rail after long-term use, thereby avoiding the problem of noise when the moving vehicle passes; and the conductive compensation plates 5 are located on one side of the contact rail, and the contact rails are connected by guide members, thereby ensuring that the conductive compensation plates 5 do not affect the movement of the contact rail during rotation, so that the contact rail always moves in the horizontal direction.

[0049] In general, the connection structure for the contact rail provided in the embodiment of the present application can effectively eliminate the length change of the contact rail caused by the temperature, and in the process can ensure the normal operation of the contact rail.

[0050] Please combine Figure 1-4 In this embodiment, the guide member 3 includes a guide body and a guide shaft 10, wherein there are two guide bodies (named as a first guide body 31 and a second guide body 32 respectively), and the guide shaft 10 is arranged between the first guide body 31 and the second guide body 32, and the two ends of the guide shaft 10 are respectively connected to the inner ends of the first guide body 31 and the second guide body 32 by insertion and / or clamping, and the outer end of the first guide body 31 is connected to the first contact rail 1, and the outer end of the second guide body 32 is connected to the second contact rail 2.

[0051] In this embodiment, there are preferably two conductive compensation plates (named as the first conductive compensation plate 51 and the second conductive compensation plate 52 respectively). There are also preferably two rotating shafts (named as the first rotating shaft 41 and the second rotating shaft 42 respectively).

[0052] It should be noted that the first guide body 31 and the second guide body 32 are respectively slidably matched with the guide shaft 10 , and along the axial direction of the guide shaft 10 , the first guide body 31 and the second guide body 32 are movably connected with the guide shaft 10 .

[0053] It should be further explained that, in this embodiment, the first rotating shaft 41 is arranged on the first guide body 31, the second rotating shaft 42 is arranged on the second guide body 32, the first conductive compensation plate 51 is connected to the first guide body 31 through the first rotating shaft 41, and the second conductive compensation plate 52 is connected to the second guide body 32 through the second rotating shaft 42.

[0054] Furthermore, in order to ensure that the rotating contact edge 7 of the first conductive compensation plate 51 and the rotating contact edge 7 of the second conductive compensation plate 52 can be in close contact, in this embodiment, the rotating contact edge 7 of the first conductive compensation plate 51 and the rotating contact edge 7 of the second conductive compensation plate 52 are respectively in the form of a straight line, thereby ensuring the stability between the first conductive compensation plate 51 and the second conductive compensation plate 52.

[0055] It should be noted that the rotating contact edge of the first conductive compensation plate 51 and the rotating contact edge of the second conductive compensation plate 52 are in contact at least at one point, thereby ensuring that the first conductive compensation plate 51 and the second conductive compensation plate 52 are always in a conductive state during movement without causing a circuit breaker.

[0056] Furthermore, in order to ensure that the conductive compensation plate can automatically reset after rotation and to ensure the stability of the conductive compensation plate during rotation, in this embodiment, a first torsion spring 61 is provided between the first rotating shaft 41 and the first conductive compensation plate 51, and a second torsion spring 62 is provided between the second rotating shaft 42 and the second conductive compensation plate 52. In addition, a slider and a slide groove structure A (such as Figure 8 As shown), it is ensured that when the first conductive compensation plate 51 and the second conductive compensation plate 52 move relative to each other, the rotating contact edge 7 of the first conductive compensation plate 51 is always in contact with the rotating contact edge 7 of the second conductive compensation plate 52.

[0057] Furthermore, in order to facilitate the installation of the first guide body 31 and the second guide body 32, in this embodiment, the first contact rail 1 and the second contact rail 2 are specially provided with a connection groove (not shown) for facilitating the connection of the first guide body 31 and the second guide body 32.

[0058] Further, for the convenience of installation, in this embodiment, the first guide body 31 and the second guide body 32 are respectively fixed on the installation base by the support device 9. This is a conventional prior art in the field and will not be described in detail here.

[0059] Through this embodiment, the first guide body 31 and the second guide body 32 can be connected to the first contact rail 1 and the second contact rail 2 respectively, and a guide shaft 10 is provided between the first guide body 31 and the second guide body 32, which can not only make the connection between the first contact rail 1 and the second contact rail 2 more stable, but also limit the movement of the first contact rail 1 and the second contact rail 2. In addition, the first conductive compensation plate 51 and the second conductive compensation plate 52 are rotatably provided on the first guide body 31 and the second guide body 32 respectively, so that when the first guide body 31 and the second guide body 32 move with the first contact rail 1 and the second contact rail 2, a relative displacement is formed between the first conductive compensation plate 51 and the second conductive compensation plate 52, and in this process, the first conductive compensation plate 51 rotates with the first rotating shaft 41 as the axis, and the second conductive compensation plate 52 rotates with the second rotating shaft 42 as the axis, so as to ensure that the rotating contact edge 7 of the first conductive compensation plate 51 and the rotating contact edge 7 of the second conductive compensation plate 52 are always in close contact. Since the rotating contact edge of the first conductive compensation plate 51 and the rotating contact edge of the second conductive compensation plate 52 are always in contact at a point, the connectivity of the entire circuit is ensured, and the force of the first contact rail 1 and the second contact rail 2 during thermal expansion and contraction is mainly concentrated on the first guide body 31 and the second guide body 32, and will not cause excessive force on the first conductive compensation plate 51 and the second conductive compensation plate 52, thereby effectively ensuring the accuracy after long-term use and avoiding the generation of gaps that cause noise when a train passes.

[0060] In addition, please combine Fig. 9 In this embodiment, the first contact rail 1 and the second contact rail 2 may also be in the form of an I-shaped rail, in which case the first guide body 31 and the second guide body 32 are respectively located in the grooves of the first contact rail 1 and the second contact rail 2. With this design, the first contact rail 1 and the second contact rail 2 can be effectively limited, ensuring that the first contact rail 1 and the second contact rail 2 always move along the axial direction of the first guide body 31 and the second guide body 32.

[0061] Example 2

[0062] Please combine Figure 5 This embodiment is basically the same as the embodiment 1, except that in this embodiment, there is only one conductive compensation plate 5 and one guide member 3, and both ends of the guide member 3 are respectively arranged in the connecting grooves of the first contact rail 1 and the second contact rail 2, and are slidably matched with the connecting grooves. At this time, the rotating shaft 4 is arranged on the guide member 3, and the conductive compensation plate 5 is connected with the rotating shaft 4; and the rotating shaft 4 is located at the geometric center of the conductive compensation plate 5, ensuring that the conductive compensation plate 5 can rotate evenly when rotating around the rotating shaft 4; and the first contact rail 1 and the second contact rail 2 are both provided with a first rotating contact edge 71 that matches with the rotating contact edge of the conductive compensation plate 5.

[0063] This design can further improve the stability of the device. By setting a conductive compensation plate 5, the first rotating contact edges 71 of the first contact rail 1 and the second contact rail 2 can be respectively in contact with the two sides of the conductive compensation plate 5. Thus, a conductive compensation plate 5 can be used to match the first contact rail 1 and the second contact rail 2, making the whole more compact and effectively eliminating mechanical clearance, making the entire movement process more reliable.

[0064] Furthermore, in order to ensure that the conductive compensation plate 5 can automatically reset after rotation, and to ensure the stability of the conductive compensation plate 5 during rotation; in this embodiment, a torsion spring 6 is provided between the outer periphery of the rotating shaft 4 and the conductive compensation plate 5, thereby effectively ensuring that the conductive compensation plate 5 can reset under the action of the torsion spring 6 after rotation.

[0065] It should be noted that, in this embodiment, the rotational contact edge 7 of the conductive compensation plate 5 and the first rotational contact edges 71 of the first contact rail 1 and the second contact rail 2 may also be in the form of a slider and a slide groove.

[0066] In this embodiment, the first rotating contact edge 71 can adopt a straight edge line or an arc edge line, which can ensure that during the thermal expansion and contraction movement of the first contact rail 1 and the second contact rail 2, the first rotating contact edge 71 of the first contact rail 1 and the second contact rail 2 can always be in close contact with the rotating contact edge 7 of the conductive compensation plate 5 to prevent the generation of gaps and cause noise when the vehicle passes.

[0067] When the first rotation contact edges 71 are in the form of straight lines, the two first rotation contact edges 71 are arranged in parallel, and the angle between them and the horizontal plane is an acute angle.

[0068] When the first rotating contact edge 71 is in the form of an arc edge line, there are two specific implementation methods. Figure 5 The first type: the center of the arc corresponding to the first rotating contact edge 71 of the first contact rail 1 is located on the side where the first contact rail 1 is located; the center of the arc corresponding to the first rotating contact edge 71 of the second contact rail 2 is located on the side where the second contact rail 2 is located.

[0069] The second type: the center of the arc corresponding to the first rotating contact edge 71 of the first contact rail 1 is located on the side where the conductive compensation plate 5 is located; the center of the arc corresponding to the first rotating contact edge 71 of the second contact rail 2 is located on the side where the conductive compensation plate 5 is located.

[0070] Furthermore, during the rotation of the conductive compensation plate 5, the rotating contact edge 7 thereof always maintains at least one point of contact with the first rotating contact edge 71 of the first contact rail 1 and the second contact rail 2, thereby ensuring the conduction of the circuit.

[0071] It should be noted that, in this embodiment, the conductor 11 still needs to be provided, and the conductor 11 and the conductive compensation plate 5 are respectively located on two opposite sides of the guide member 3 .

[0072] Another thing to note is that the guide member 3 is fixed to the mounting base via the supporting device 9 .

[0073] When the first contact rail 1 and the second contact rail 2 expand and contract due to heat, the first contact rail 1 and the second contact rail 2 can be relatively moved away from or closer to each other. In this process, under the restriction of the torsion spring 6 or the slider and the slide groove structure, the rotating contact edge 7 of the conductive compensation plate 5 is always in contact with the first rotating contact edge 71 of the first contact rail 1 and the second contact rail 2. Therefore, when the first contact rail 1 and the second contact rail 2 move, the conductive compensation plate 5 can rotate around the rotating shaft 4, so that its rotating contact edge 7 always maintains at least one point contact with the first rotating contact edge 71 of the first contact rail 1 and the second contact rail 2.

[0074] Through this design, the normal operation of the entire device can be guaranteed when there is only one conductive compensation plate 5 and one guide member 3, thereby achieving a larger telescopic range while occupying a smaller space in the width direction of the contact rail system, and realizing use and installation in a smaller space.

[0075] Example 3

[0076] Please combine Figure 6 , Figure 7 This embodiment is basically the same as embodiment 2, except that in this embodiment, a third rotating shaft 43 and a fourth rotating shaft 44 are respectively provided on the first contact rail 1 and the second contact rail 2, and the third conductive compensation plate 53 and the fourth conductive compensation plate 54 are respectively connected through the third rotating shaft 43 and the fourth rotating shaft 44, and the third rotating shaft 43 and the fourth rotating shaft 44 are respectively provided with a third torsion spring and a fourth torsion spring. At this time, the third conductive compensation plate 53 is provided with a third rotating contact edge 72 that cooperates with the rotating contact edge on the side close to the conductive compensation plate 5, and the fourth conductive compensation plate 54 is provided with a fourth rotating contact edge 73 that cooperates with the rotating contact edge on the side close to the conductive compensation plate 5.

[0077] This design enables the conductive compensation plate 5, the third conductive compensation plate 53 and the fourth conductive compensation plate 54 to rotate respectively when the first contact rail 1 and the second contact rail 2 are relatively close to or far away from each other, so that the third rotating contact edge 72 is in close contact with the rotating contact edge, and the fourth rotating contact edge 73 is in close contact with the rotating contact edge 7.

[0078] This design can ensure that when the first contact rail 1 and the second contact rail 2 produce horizontal displacement under the condition of thermal expansion and contraction, the rotation of the conductive compensation plate 5, the third conductive compensation plate 53 and the fourth conductive compensation plate 54 can be used to eliminate the horizontal displacement, and the conductive compensation plate 5, the third conductive compensation plate 53 and the fourth conductive compensation plate 54 can rotate independently without affecting each other; on this basis, it can also ensure that during the independent rotation process, the third rotating contact edge 72 can always contact with the side of the conductive compensation plate 5, and the fourth rotating contact edge 73 can always contact with the other side of the conductive compensation plate 5, and no gap will be generated, thereby ensuring the fluidity of conduction and no risk of circuit breaking.

[0079] In this embodiment, the third rotating contact edge 72 and the fourth rotating contact edge 73 can adopt a straight edge line or an arc edge line, which can ensure that during the thermal expansion and contraction movement of the first contact rail 1 and the second contact rail 2, the third rotating contact edge 72 and the fourth rotating contact edge 73 can always be in close contact with the side of the conductive compensation plate 5 to prevent the generation of gaps and cause noise when the vehicle passes.

[0080] When the third rotation contact edge 72 and the fourth rotation contact edge 73 are in the form of straight lines, the two third rotation contact edges 72 and the fourth rotation contact edges 73 are arranged in parallel, and the angle between them and the horizontal plane is an acute angle.

[0081] When the third rotating contact edge 72 and the fourth rotating contact edge 73 are in the form of arc-shaped edges, there are two specific implementations. Figure 7 , the first type: the center of the arc corresponding to the third rotating contact edge 72 is located on the side where the first contact rail 1 is located; the center of the arc corresponding to the fourth rotating contact edge 73 is located on the side where the second contact rail 2 is located.

[0082] The second type: the centers of the arcs corresponding to the third rotating contact edge 72 and the fourth rotating contact edge 73 are both located on the side where the conductive compensation plate 5 is located.

[0083] Through the applicant's experiments and demonstrations on various implementation methods, this implementation method of Example 3 is the optimal implementation method. It can ensure that the two side edges of the conductive compensation plate 5 are always in contact with the third rotating contact edge 72 and the fourth rotating contact edge 73 without generating a gap, while eliminating the horizontal displacement by rotation without affecting the first contact rail 1 and the second contact rail 2.

[0084] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A connection structure for a contact rail, characterized in that: The invention comprises a guide, two adjacent contact rails, a conductor and a compensation part, wherein the compensation part comprises a plurality of conductive compensation plates; the two ends of the guide are respectively connected to the two adjacent contact rails; a plurality of rotating shafts are arranged along the vertical direction of the current receiving working surface of the guide and / or the contact rail, one end of any conductive compensation plate is supported and connected to the guide and / or the contact rail through any rotating shaft, and the current receiving working surface of any conductive compensation plate and the current receiving working surface of the contact rail are preset to be located in the same plane; the compensation part completely covers the telescopic gap between the two adjacent contact rails in the running direction, and the compensation part is arranged along the running direction. The length of the guide and / or the length of the guide along the running direction is greater than the telescopic gap between the contact rails; the guide and / or the contact rail are connected to the conductor, and the conductor and the conductive compensation plate are respectively located on opposite sides of the guide and / or the contact rail; a rotating contact edge is arranged between the conductive compensation plate and the guide, and / or between the conductive compensation plate and the contact rail, and / or between adjacent conductive compensation plates, and the angle between the rotating contact edge and the length direction of the contact rail is non-right angle; the conductive compensation plate rotates along the rotating shaft to adapt to the change of the telescopic gap; the guide does not rotate, and slides with two adjacent contact rails along the running direction.

2. The connection structure according to claim 1, characterized in that: A torsion spring is arranged between the outer periphery of any rotating shaft and any conductive compensation plate; or a slider and a sliding groove structure are arranged between adjacent conductive compensation plates.

3. The connection structure according to claim 1, characterized in that: The rotational contact edge is a straight line or an arc-shaped edge.

4. The connection structure according to claim 1, characterized in that: The two ends of the guide member are respectively connected to two adjacent contact rails by means of insertion and / or clamping.

5. The connection structure according to claim 1, characterized in that: The guide member comprises two adjacent guide bodies and a guide shaft, the two ends of the guide shaft are respectively connected to the inner ends of the two adjacent guide bodies by insertion and / or clamping, and the outer ends of the two adjacent guide bodies are respectively connected to the two adjacent contact rails.

6. The connection structure according to claim 1, characterized in that: The conductive compensation plates are provided in excess of two, and the rotating shafts are provided in excess of two.

7. The connection structure according to claim 1, characterized in that: During the rotation of the conductive compensation plate, its rotating contact edge always keeps in contact with the contact rail or the rotating contact edge of the adjacent conductive compensation plate at least at one point.

8. The connection structure according to claim 1, characterized in that: The contact rail is provided with a connecting groove for inserting the guide piece.

9. The connection structure according to claim 1, characterized in that: The guide member is fixed on the mounting base through a supporting device.

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