CN214450426U

CN214450426U - Connecting structure for contact rail

Info

Publication number: CN214450426U
Application number: CN202023342656.1U
Authority: CN
Inventors: 邓茂涛; 曾鉴; 代文旭
Original assignee: Individual
Current assignee: Chengdu Yunde Transportation Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-10-22
Anticipated expiration: 2030-12-31

Abstract

A connection structure for a contact rail relates to the technical field of rail transit. The device comprises a guide piece, two adjacent contact rails, a conductor and a compensation part, wherein the compensation part comprises a plurality of conductive compensation plates; two ends of the guide piece are respectively connected with two adjacent contact rails; a plurality of rotating shafts are arranged along the vertical direction of the current receiving working surface of the guide part and/or the contact rail, one end of any conductive compensation plate is supported and connected to the guide part 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 positioned on the same plane; the compensation part completely covers the telescopic gap between two adjacent contact rails in the walking direction, and the length of the compensation part in the walking direction and/or the length of the guide part in the walking direction are/is greater than the telescopic gap between the contact rails. The length change of the contact rail caused by the influence of temperature can be effectively eliminated, and the normal work of the contact rail can be ensured in the process.

Description

Connecting structure for contact rail

Technical Field

The application relates to the technical field of rail transit, in particular to a connecting structure for a contact rail.

Background

A contact rail in rail transit is a mechanism for providing electric energy for a motor car, a current collector shoe is arranged on the motor car, the current collector shoe moves along with the motor car to contact the contact rail, and the contact rail provides corresponding electric power.

Patent document CN202010147061.6 discloses an expansion joint and a power supply system for a rail vehicle, wherein the expansion joint comprises: the device comprises a first contact rail, a second contact rail, a first sliding plate rotationally connected with the first contact rail, and a second sliding plate rotationally connected with the second contact rail; the rotation axes of the first sliding plate and the second sliding plate are parallel and can rotate in a vertical plane; the first sliding plate and the second sliding plate are distributed and contacted along the vertical direction, the contact surfaces of the first sliding plate and the second sliding plate are inclined surfaces and are in sliding fit along the inclined surfaces, and the inclined surfaces and the horizontal direction form an included angle which is an acute angle. The application also discloses an expansion joint, which ensures that the first sliding plate and the second sliding plate are in close contact in the extension state and the contraction state, and no gap exists between the first sliding plate and the second sliding plate, namely, the flow receiving surface is always a plane and has no gap in the extension and contraction processes, thereby eliminating the noise when the rail vehicle passes through. Although the noise generated when the rail vehicle passes through can be reduced in the mode, the first sliding plate and the first contact rail are coaxially arranged and extend along the axial direction of the first contact rail, the second sliding plate and the second contact rail are coaxially arranged and extend along the axial direction of the second contact rail, due to the fact that the first sliding plate and the second sliding plate are integrally rotated, long-term use is not facilitated, and Z-direction displacement, namely longitudinal displacement perpendicular to the walking direction, is easily generated after the first sliding plate and the second sliding plate are used for a long time, and the contact surface is uneven.

In addition, patent document No. 201610175914.0 discloses a telescopic connector without expansion joint, which is composed of two contact rail sections, a limit guide body, a contact surface slide block and an electric conductor, wherein the two contact rail sections are connected and matched with each other through the limit guide body with a sliding gap; at least one contact surface sliding block is arranged on the limiting guide body or the contact rail section base body; the outer contact surface of the contact surface sliding block and the outer contact surface of the contact rail section are positioned on the same working surface; the contact surface sliding block partially or completely covers the telescopic gap between the two contact rail sections; the contact surface sliding block is provided with at least one edge, the included angle between the edge line of the edge and the telescopic direction of the contact rail sections is less than 90 degrees, when the telescopic clearance is changed due to the displacement of the two contact rail sections in the length direction, the contact surface sliding block correspondingly displaces along the direction vertical to the telescopic direction of the contact rail sections on the contact working surface to adapt to the change of the telescopic clearance; at least one electric conductor is connected with the limiting guide body or/and the two contact rail sections to realize electric conduction. The scheme can compensate expansion and contraction of the contact rail system and mechanical displacement, and eliminate abutting force and stretching resistance. In the actual use process, when the two contact rail sections generate relative displacement due to thermal barrier contraction, the contact surface sliding block can generate certain displacement in the vertical direction, so that the relative displacement generated by the two contact rail sections is eliminated; however, the distance of lateral movement is small, the requirement on the sliding precision of the compensating plate is high, and the manufacturing and installation are complex.

In view of this, the present application is specifically made.

Disclosure of Invention

An object of this application is to provide a connection structure for conductor rail, its length change that can effectual elimination conductor rail receives the temperature influence and produce ensures the normal operating of train, realizes the seamless connection of the flexible in-process of conductor rail simultaneously.

The embodiment of the application is realized as follows:

a connecting structure for contact rails comprises a guide piece, two adjacent contact rails, a conductor and a compensation part, wherein the compensation part comprises a plurality of conductive compensation plates; two ends of the guide piece are respectively connected with two adjacent contact rails;

a plurality of rotating shafts are arranged along the vertical direction of the current receiving working surface of the guide part and/or the contact rail, one end of any conductive compensation plate is supported and connected to the guide part 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 positioned on the same plane; the compensation part completely covers the telescopic gap between two adjacent contact rails in the walking direction, and the length of the compensation part in the walking direction and/or the length of the guide part in the walking direction are/is greater than the telescopic gap between the contact rails;

the guide piece and/or the contact rail are connected with the electric conductor, and the electric conductor and the conductive compensation plate are respectively positioned on the opposite side surfaces of the guide piece and/or the contact rail; rotating contact edges are arranged between the conductive compensation plates and the guide piece, and/or between the conductive compensation plates and the contact rail, and/or between the adjacent conductive compensation plates, and the included angle between each rotating contact edge and the length direction of the contact rail is a non-right angle; the conductive compensation plate rotates along the rotating shaft to adapt to the change of the telescopic gap.

Further, the guide member is not rotated and slides with the two adjacent contact rails in the running direction.

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

Further, the rotary contact edge is a straight line edge or an arc-shaped edge line.

Furthermore, two ends of the guide part are respectively connected with two adjacent contact rails in an inserting and/or clamping mode.

Furthermore, the guide part comprises two adjacent guide bodies and a guide shaft, two ends of the guide shaft are respectively connected with the inner side ends of the two adjacent guide bodies in an inserting and/or clamping mode, and the outer side ends of the two adjacent guide bodies are respectively connected with the two adjacent contact rails.

Furthermore, the number of the conductive compensation plates is more than two, and the number of the rotating shafts is more than two.

Further, the rotating contact edge of the conductive compensation plate is always in contact with the rotating contact edge of the contact rail or the adjacent conductive compensation plate at least one point in the rotating process.

Further, the contact rail is provided with a connection groove for inserting the guide member.

Further, the guide is fixed to the mounting base by a support device.

The beneficial effects of the embodiment of the application are that:

the connection structure for the contact rail that this application embodiment provided, can utilize the guide to connect two sections adjacent contact rails, and play support connection and spacing effect to two sections adjacent contact rails, two sections adjacent contact rails have been guaranteed the stability of in-process of expend with heat and contract with cold, thereby make the precision change less in the use, in addition, utilize the mode of electrically conductive compensating plate cooperation contact rail rotation compensation, can effectively eliminate the contact rail and receive the length change that the temperature influences and produce, ensure the normal operating of train, realize the seamless connection of the flexible in-process of contact rail simultaneously.

In addition, through the design, rotary contact edges are arranged between the conductive compensation plates and the contact rails or the guide pieces, so that the displacement of the conductive compensation plates is effectively limited, the left side, the right side, the upper side and the lower side of the conductive compensation plates are pressed, the precision stability of the device in long-term use can be effectively ensured, gaps are prevented from being generated between the conductive compensation plates or between the conductive compensation plates and the contact rails after long-term use, and the problem of noise generation when a motor car passes through is avoided; and the conductive compensation plate is bridged between the two adjacent contact rails, so that the movement of the contact rails is not influenced in the rotating process of the conductive compensation plate, the conductive compensation plate is not easy to generate Z-direction displacement, and the current-receiving working surface is still flat after long-term use.

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

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic structural diagram provided in embodiment 1 of the present application;

FIG. 2 is an exploded view provided in example 1 of the present application;

fig. 3 is a schematic view of an installation of a torsion spring provided in embodiment 1 of the present application;

fig. 4 is a schematic view of an operating state provided in embodiment 1 of the present application;

fig. 5(1) is a schematic structural diagram of embodiment 2 provided in the present application;

fig. 5(2) is a schematic working diagram of embodiment 2 provided in the present application;

fig. 5(3) is another schematic diagram of the working of embodiment 2 provided in the present application;

FIG. 6 is a schematic structural diagram of another embodiment of example 2 provided in an example of the present application;

fig. 7(1) is a first schematic view of a working state of another implementation manner of example 2 provided in the embodiment of the present application;

fig. 7(2) is a second schematic view of a working state of another implementation manner of example 2 provided in the embodiment of the present application;

fig. 7(3) is a third schematic view of a working state of another implementation manner of example 2 provided in the embodiment of the present application;

fig. 8 is a schematic structural diagram of a sliding block and a sliding chute provided in the embodiment of the present application;

fig. 9 is a schematic diagram of another embodiment of the first busbar and the second busbar provided in embodiment 1 of the present application.

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

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when in use, and are used only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "parallel," "perpendicular," and the like do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined. For example, "parallel" merely means that the directions are more parallel relative to "perpendicular," and does not mean that the structures are necessarily perfectly parallel, but may be slightly tilted.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example 1

Referring to fig. 1-4, the present embodiment provides a connection structure for a contact rail, which includes a first contact rail 1, a second contact rail 2, a guide member 3, a rotation shaft 4, a conductive compensation plate 5, a torsion spring 6, a rotation contact edge 7, a supporting device 9, and a guide shaft 10.

The contact rails comprise a first contact rail 1 and a second contact rail 2, and two ends of the guide piece 3 are respectively connected with 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, 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 positioned on the same plane; the compensation part completely covers the telescopic gap between two adjacent contact rails in the walking direction, and the length of the compensation part in the walking direction and/or the length of the guide part 3 in the walking direction are/is greater than the telescopic gap between the first contact rail 1 and the second contact rail 2;

the guide member 3 and/or the contact rail is connected with an electric conductor 11, and the electric conductor 11 and the conductive compensation plate 5 are respectively positioned on the opposite sides of the guide member 3 and/or the contact rail; a rotating contact edge 7 is arranged between the conductive compensation plate 5 and the guide piece 3, and/or between the conductive compensation plate 5 and the contact rail, and/or between adjacent conductive compensation plates 5, and the included angle between the rotating contact edge 7 and the length direction of the contact rail is a non-right angle; the conductive compensation plate 5 rotates along the rotation shaft 4 to accommodate the change of the expansion gap.

Can utilize guide 3 to connect first busbar 1 and second busbar 2, and play support connection and spacing effect to first busbar 1 and second busbar 2, first busbar 1 and the stability of second busbar 2 at expend with heat and contract with cold in-process has been guaranteed, thereby it is less to make the precision change in the use, in addition, utilize the mode of the rotatory compensation of conductive compensation board 5 cooperation busbar, can effectively eliminate the length change that the busbar received the temperature influence and produced, ensure the normal operating of train, realize the seamless joint of the flexible in-process of busbar simultaneously.

In the present embodiment, the guide member preferably slides in the running direction with respect to the two adjacent contact rails without rotating. Under such setting, the guide member only transversely slides, is more favorable to playing the horizontal guide effect to electrically conductive compensating plate and contact rail, avoids taking place Z displacement.

In addition, through the design, the rotary contact edges 7 are arranged between the conductive compensation plates 5 and the contact rail or the guide piece 3, so that the displacement of the conductive compensation plates 5 is effectively limited, the left side, the right side, the upper side and the lower side of the conductive compensation plates 5 are pressed, the precision stability of the device in long-term use can be effectively ensured, gaps are prevented from being generated between the conductive compensation plates 5 or between the conductive compensation plates and the contact rail after long-term use, and the problem of noise generation when a motor car passes through is avoided; and, electrically conductive compensating plate 5 is located contact rail one side to pass through the guide between the contact rail and connect, thereby guaranteed electrically conductive compensating plate 5 in the pivoted in-process, can not influence the motion of contact rail, make the contact rail move in the horizontal direction all the time.

Referring to fig. 1 to 4, in the present embodiment, the guide member 3 includes two guide bodies (named as a first guide body 31 and a second guide body 32, respectively) and the guide shaft 10 is disposed between the first guide body 31 and the second guide body 32, two ends of the guide shaft 10 are respectively connected to inner ends of the first guide body 31 and the second guide body 32 by inserting and/or clamping, an outer end of the first guide body 31 is connected to the first contact rail 1, and an outer end of the second guide body 32 is connected to the second contact rail 2.

In the present embodiment, the conductive compensation plates are preferably two (named as a first conductive compensation plate 51 and a second conductive compensation plate 52, respectively). The shafts are likewise preferably two (named first shaft 41 and second shaft 42, respectively)

It should be noted that the first guiding body 31 and the second guiding body 32 are respectively in sliding fit with the guiding shaft 10, and the first guiding body 31 and the second guiding body 32 are movably connected with the guiding shaft 10 along the axial direction of the guiding shaft 10.

It should be further noted that, in the present embodiment, the first rotating shaft 41 is disposed on the first guiding body 31, the second rotating shaft 42 is disposed on the second guiding body 32, the first conductive compensation plate 51 is connected to the first guiding body 31 through the first rotating shaft 41, and the second conductive compensation plate 52 is connected to the second guiding body 32 through the second rotating shaft 42.

Further, 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 the 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, so that the stability between the first conductive compensation plate 51 and the second conductive compensation plate 52 is ensured.

It should be noted that at least one point of the rotating contact edge of the first conductive compensation plate 51 and the rotating contact edge of the second conductive compensation plate 52 is in contact with each other, so that the first conductive compensation plate 51 and the second conductive compensation plate 52 are always in a conductive state in the process of moving, and no open circuit is caused.

Furthermore, in order to ensure that the conductive compensation plate can automatically reset after rotating and ensure the stability of the conductive compensation plate during rotation; in this embodiment, a first torsion spring 61 is disposed between the first rotating shaft 41 and the first conductive compensation plate 51, and a second torsion spring 62 is disposed between the second rotating shaft 42 and the second conductive compensation plate 52. Besides, a sliding block and sliding groove structure a (as shown in fig. 8) may be further disposed between the first conductive compensation plate 51 and the second conductive compensation plate 52, so as to ensure that 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 when the first conductive compensation plate 51 and the second conductive compensation plate 52 move relatively.

Further, in order to facilitate the installation of the first guide body 31 and the second guide body 32, in the present embodiment, the first contact rail 1 and the second contact rail 2 are purposely added with connection grooves (not shown) for facilitating the installation of the first guide body 31 and the second guide body 32.

Further, in order to facilitate installation, in the present embodiment, the first guide body 31 and the second guide body 32 are respectively fixed on the installation base by the supporting device 9. This is conventional in the art and will not be described further herein.

Through the embodiment, the first guide body 31 and the second guide body 32 can be respectively connected with the first contact rail 1 and the second contact rail 2, and the guide shaft 10 is arranged between the first guide body 31 and the second guide body 32, so that the connection between the first contact rail 1 and the second contact rail 2 is more stable, and the movement of the first contact rail 1 and the second contact rail 2 can be limited. In addition, the first conductive compensation plate 51 and the second conductive compensation plate 52 are respectively rotatably disposed on the first guide body 31 and the second guide body 32, so that when the first guide body 31 and the second guide body 32 move along with the first contact rail 1 and the second contact rail 2, a relative displacement can be 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 around the first rotating shaft 41, and the second conductive compensation plate 52 rotates around the second rotating shaft 42, thereby ensuring 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. Because the rotation contact limit of the first conductive compensation plate 51 and the rotation contact limit of the second conductive compensation plate 52 have a point to contact all the time, thereby ensuring the communication of the whole circuit, and the acting force when the first contact rail 1 and the second contact rail 2 move with expansion with heat and contraction with cold is mainly concentrated on the first guide body 31 and the second guide body 32, not causing too much stress to the first conductive compensation plate 51 and the second conductive compensation plate 52, thereby effectively ensuring the precision after long-term use, avoiding generating gaps, and generating noise when leading to the passing of trains.

In addition, referring to 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, and in this 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. Through this kind of design, can be effectual carry on spacingly to first busbar 1 and second busbar 2, guarantee first busbar 1 and second busbar 2 when removining all the time along the axial of first guide 31 and second guide 32.

Example 2

Referring to fig. 5(1) - (3), this embodiment is substantially the same as embodiment 1, except that only one conductive compensation plate 5 and only one guide element 3 are provided in this embodiment, two ends of the guide element 3 are respectively disposed in the connecting slots of the first contact rail 1 and the second contact rail 2 and slidably fit with the connecting slots, at this time, the rotating shaft 4 is disposed on the guide element 3, and the conductive compensation plate 5 is connected to the rotating shaft 4; moreover, the rotating shaft 4 is positioned at the geometric center of the conductive compensation plate 5, so that the conductive compensation plate 5 can uniformly rotate when rotating by taking the rotating shaft 4 as a shaft; furthermore, the first contact rail 1 and the second contact rail 2 are each provided with a first rotating contact edge 71 cooperating with the rotating contact edge of the conductive compensation plate 5.

This kind of design can further improve the stability of device, through setting up a conductive compensation plate 5, can make the first rotatory contact edge 71 of first contact rail 1 and second contact rail 2 contact with the both sides contact of conductive compensation plate 5 respectively to can utilize a conductive compensation plate 5 cooperation first contact rail 1 and second contact rail 2, make whole compacter, and can effectual elimination mechanical clearance, make whole motion process more reliable.

Further, in order to ensure that the conductive compensation plate 5 can automatically reset after rotating, and ensure the stability of the conductive compensation plate 5 during rotation; in this embodiment, the torsion spring 6 is disposed 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 be reset under the action of the torsion spring 6 after rotating.

It should be noted that in the present embodiment, the rotating contact edge 7 of the conductive compensation plate 5 and the first rotating contact edge 71 of the first contact rail 1 and the second contact rail 2 may also be in the form of a sliding block and a sliding slot.

In this embodiment, the first rotating contact edge 71 may adopt a straight line edge or an arc edge, which can ensure that the first rotating contact edges 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 during the thermal expansion and contraction movement of the first contact rail 1 and the second contact rail 2, thereby preventing the generation of a gap and causing the generation of noise when the vehicle passes through.

When the first rotating contact edges 71 are in a straight line, the two first rotating contact edges 71 are arranged in parallel, and the included angle between the first rotating contact edges 71 and the horizontal plane is an acute angle.

When the first rotating contact edge 71 is in the form of an arc-shaped edge line, there are two specific embodiments, specifically referring to fig. 5, the first: the circle center of the first rotary contact edge 71 of the first contact rail 1 corresponding to the arc is positioned at one side of the first contact rail 1; the first rotating contact edge 71 of the second contact rail 2 is located at the side of the second contact rail 2 corresponding to the center of the arc.

And the second method comprises the following steps: the circle center of the first rotary contact edge 71 of the first contact rail 1 corresponding to the arc is positioned at one side of the conductive compensation plate 5; the first rotating contact edge 71 of the second contact rail 2 is located at the side of the conductive compensation plate 5 corresponding to the center of the arc.

Further, the conductive compensation plate 5 maintains at least one point of contact of the rotating contact edge 7 with the first rotating contact edge 71 of the first and

second contact rails

1 and 2 during the rotation. Thereby ensuring that the circuit is conductive.

It should be noted that in this embodiment, it is still necessary to provide the conductive body 11, and the conductive body 11 and the conductive compensation plate 5 are respectively located on two opposite sides of the guide 3.

Another remark is that the guide 3 is fixed to the mounting base by means of support means 9.

The first contact rail 1 and the second contact rail 2 can be relatively far away from or close to each other when the first contact rail 1 and the second contact rail 2 expand with heat and contract with cold, in the process, under the limitation of the torsion spring 6 or the structure of the sliding block and the sliding groove, 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, so that the conductive compensation plate 5 can rotate around the rotating shaft 4 when the first contact rail 1 and the second contact rail 2 move, and in the process, the rotating contact edge 7 of the conductive compensation plate always keeps at least one point contact with the first rotating contact edge 71 of the first contact rail 1 and the second contact rail 2.

Through the design, the normal work of the whole device can be still ensured under the condition that only one conductive compensation plate 5 and one guide piece 3 are arranged, so that a larger telescopic range is realized under the condition that a smaller space in the width direction of a contact rail system is occupied, and the device can be used and installed under the condition of a smaller space.

Example 3

Referring to fig. 6 and 7(1) - (3), this embodiment is substantially the same as embodiment 2, except that in this embodiment, the first contact rail 1 and the second contact rail 2 are respectively provided with a third rotating shaft 43 and a fourth rotating shaft 44, and are respectively connected to the third conductive compensation plate 53 and the fourth conductive compensation plate 54 through the third rotating shaft 43 and the fourth rotating shaft 44, 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, a third rotating contact edge 72 matched with the rotating contact edge is disposed on a side of the third conductive compensation plate 53 close to the conductive compensation plate 5, and a fourth rotating contact edge 73 matched with the rotating contact edge is disposed on a side of the fourth conductive compensation plate 54 close to the conductive compensation plate 5.

With the design, when the first contact rail 1 and the second contact rail 2 are relatively close to or far away from each other, the conductive compensation plate 5, the third conductive compensation plate 53 and the fourth conductive compensation plate 54 are respectively rotated, so that the third rotating contact edge 72 and the rotating contact edge are in close contact, and the fourth rotating contact edge 73 and the rotating contact edge 7 are in close contact.

By the design, when the first contact rail 1 and the second contact rail 2 generate horizontal displacement under the conditions of expansion with heat and contraction with cold, the rotation of the conductive compensation plate 5, the third conductive compensation plate 53 and the fourth conductive compensation plate 54 can be utilized, so that the horizontal displacement is eliminated, and the conductive compensation plate 5, the third conductive compensation plate 53 and the fourth conductive compensation plate 54 can respectively rotate independently without influencing each other; on this basis can also guarantee that in the individual pivoted in-process, third rotating contact limit 72 can contact with the side of electrically conductive compensating plate 5 all the time, and fourth rotating contact limit 73 can contact with another side of electrically conductive compensating plate 5 all the time to can not produce the clearance, thereby guaranteed electrically conductive circulation, can not produce the risk of opening circuit.

In this embodiment, the third rotating contact edge 72 and the fourth rotating contact edge 73 may adopt a straight line edge or an arc edge, so as to ensure that 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 during the thermal expansion and cold contraction movement of the first contact rail 1 and the second contact rail 2, thereby preventing the generation of a gap and causing the generation of noise when the vehicle passes through.

When the third rotating contact edge 72 and the fourth rotating contact edge 73 are in a straight line form, the two third rotating contact edges 72 and the fourth rotating contact edge 73 are arranged in parallel, and the included angle between the third rotating contact edge 72 and the fourth rotating contact edge 73 and the horizontal plane is an acute angle.

When the third rotating contact edge 72 and the fourth rotating contact edge 73 are in the form of arc-shaped edge lines, there are two specific embodiments, specifically referring to fig. 7, the first: the circle center of the arc corresponding to the third rotating contact edge 72 is positioned at one side of the first contact rail 1; the center of the arc corresponding to the fourth rotating contact edge 73 is located at one side of the second contact rail 2.

And the second method comprises the following steps: the centers of the arcs corresponding to the third rotating contact edge 72 and the fourth rotating contact edge 73 are both located at one side of the conductive compensation plate 5.

Through experiments and demonstration of various embodiments by the applicant, such embodiment of example 3 is the best embodiment, and 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 rotating to eliminate horizontal displacement on the premise of not affecting the first contact rail 1 and the second contact rail 2.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A connecting structure for a contact rail is characterized by comprising a guide piece, two adjacent contact rails, an electric conductor and a compensation part, wherein the compensation part comprises a plurality of conductive compensation plates; two ends of the guide piece are respectively connected with two adjacent contact rails;

2. A connection according to claim 1, wherein the guide member is non-rotatable and is slidable in the direction of travel with the adjacent lengths of contact rail.

3. The connecting structure according to claim 1, wherein a torsion spring is provided between an outer periphery of any one of the rotating shafts and any one of the conductive compensating plates; or a sliding block and sliding groove structure is arranged between the adjacent conductive compensation plates.

4. The connection structure according to claim 1, wherein: the rotary contact edge is a straight line edge or an arc-shaped edge.

5. The connection structure according to claim 1, wherein: two ends of the guide piece are respectively connected with two adjacent contact rails in an inserting and/or clamping mode.

6. The connection structure according to claim 1, wherein: the guide piece comprises two adjacent guide bodies and a guide shaft, two ends of the guide shaft are respectively connected with the inner side ends of the two adjacent guide bodies in an inserting and/or clamping mode, and the outer side ends of the two adjacent guide bodies are respectively connected with the two adjacent contact rails.

7. The connection structure according to claim 1, wherein: the conductive compensation plates are arranged more than two, and the rotating shafts are arranged more than two.

8. The connection structure according to claim 1, wherein: during the rotation process of the conductive compensation plate, the rotating contact edge of the conductive compensation plate is always in contact with at least one point of the rotating contact edge of the contact rail or the adjacent conductive compensation plate.

9. The connection structure according to claim 1, wherein: the contact rail is provided with a connection groove for inserting a guide.

10. The connection structure according to claim 1, wherein: the guide piece is fixed on the mounting base through a supporting device.