Contact rail with buffering function and its buffer groove

Abstract

The present invention relates to the technical field of urban rail transit engineering, and provides a contact rail with a buffering function, which includes a trough body. A chamber for accommodating an end elbow that can contact with a current collector shoe is provided inside the trough body. One side of the trough body is a rubber door, and the rubber door has a gap for the current collector shoe to enter the trough body. Also provided is a contact rail with a buffering function, which includes an end elbow and also includes the above-mentioned buffering trough for the contact rail, and the end elbow is arranged in the chamber of the trough body. By providing conductive liquid inside the trough body, on the one hand, when the train enters the track and the current collector shoe contacts the end elbow, the conductive liquid can effectively buffer the two. On the other hand, since the space between the current collector shoe and the end elbow is filled with conductive liquid, the conductive liquid can quickly transfer the electric energy in the current collector shoe to the end elbow, thus avoiding the arc phenomenon caused by the current breaking through the air and preventing the end elbow and the current collector shoe from being damaged by high voltage.

Description

Technical Field

[0001] The present invention relates to the technical field of urban rail transit engineering, and particularly to a contact rail with a buffering function and its buffer groove. Background Art

[0002] At present, contact rails are often used for traction power supply in urban rail transit engineering, and the end elbows of the contact rails are made of rigid materials themselves. This leads to the following problems:

[0003] 1. Increase the mechanical collision between the end elbow of the contact rail and the current collector shoe, resulting in mechanical loss.

[0004] 2. Generate electric arcs between the end elbow of the contact rail and the current collector shoe, causing electric shock damage to the end elbow of the contact rail and reducing its service life. Summary of the Invention

[0005] The purpose of the present invention is to provide a contact rail with a buffering function and its buffer groove. By providing a buffer groove, the impact of the train current collector shoe can be buffered through its rubber door, reducing the impact force between the current collector shoe and the end elbow, and thus reducing mechanical loss.

[0006] To achieve the above purpose, an embodiment of the present invention provides the following technical solution: A buffer groove with a buffering function, including a groove body. The groove body has a chamber for accommodating an end elbow that can contact the current collector shoe. One side of the groove body is a rubber door, and the rubber door has a gap for the current collector shoe to enter the groove body. A fixing clip for fixing on a contact rail bracket is installed at the bottom of the groove body, and the fixing clip is an insulator.

[0007] Further, a buffer liquid is provided in the groove body.

[0008] Further, the buffer liquid is a conductive liquid.

[0009] Further, except for the rubber door, the other several groove walls of the groove body are insulating walls.

[0010] Further, the fixing clip has an arc surface that can match the rail body.

[0011] Further, the fixing clip includes two U-shaped grooves with their openings facing each other. The two U-shaped grooves are respectively installed below the groove body, and the length direction of each U-shaped groove is consistent with the buffering direction of the groove body. The groove surfaces of the two U-shaped grooves are both the arc surfaces.

[0012] An embodiment of the present invention provides another technical solution: A contact rail with a buffering function, including an end elbow, and further including the above buffer groove for the contact rail. The end elbow is arranged in the chamber of the groove body.

[0013] Further, the end elbow is arranged along the extending direction of the track body, and a section of the end elbow close to the rubber door is a buffer section.

[0014] Further, the buffer section is an arc section, and the arc section bends downward.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. By providing a buffer groove, the rubber door can buffer the impact of the train's current collector, reducing the impact force between the current collector and the end elbow, and thus reducing mechanical wear.

[0017] 2. By providing conductive liquid in the groove body, on the one hand, when the train enters the track and the train's current collector passes through the rubber door and enters the groove body, it will come into full contact with the conductive liquid. When the current collector makes contact with the end elbow, the conductive liquid can effectively buffer the two. On the other hand, since the space between the current collector and the end elbow is filled with conductive liquid, replacing the air between the two in traditional operation, the conductive liquid can quickly transfer the electric energy in the current collector to the end elbow, thus avoiding the arc phenomenon caused by the current breaking through the air and preventing the end elbow and the current collector from being damaged by high voltage.

[0018] 3. By setting the buffer section of the end elbow as an arc section, the current collector can slowly transition along the curvature of the end elbow to the straight section of the contact rail, realizing a smooth transition from the end elbow of the contact rail to the contact rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of a contact rail with a buffer function provided by an embodiment of the present invention;

[0020] Figure 2 It is a schematic diagram of a buffer groove for a contact rail provided by an embodiment of the present invention;

[0021] Figure 3 It is a schematic diagram of the cooperation between the end elbow and the current collector of a contact rail with a buffer function provided by an embodiment of the present invention;

[0022] In the reference numerals: 1 - groove body; 10 - chamber; 11 - rubber door; 110 - gap; 12 - insulating wall; 13 - fixing clip; 130 - arc surface; 131 - U-shaped groove; 2 - end elbow; 20 - buffer section; 21 - straight section; 3 - current collector; 4 - contact rail support; 5 - support base; 6 - conductive liquid; X - the entering direction of the train and the current collector. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] Embodiment 1:

[0025] Please refer to Figure 1 、 Figure 2 and Figure 3 ,The embodiment of the present invention provides a buffer groove with a buffer function, including a groove body 1. A chamber 10 for accommodating an end elbow 2 that can contact the current collector shoe 3 is provided in the groove body 1. One side of the groove body 1 is a rubber door 11, and the rubber door 11 has a gap 110 for the current collector shoe 3 to enter the groove body 1. In the prior art, when a train enters the track, as Figure 3 The arrow shown is the entering direction of the train and the current collector shoe 3. The current collector shoe 3 of the train will directly collide with the end elbow 2 of the contact rail, resulting in mechanical loss. Therefore, to avoid this problem, a buffer groove is provided on the contact rail in this embodiment, which can buffer the incoming current collector shoe 3 so that the current collector shoe 3 will not directly collide with the end elbow 2, reducing the impact force between the current collector shoe 3 and the end elbow 2, and thus reducing the mechanical loss. Specifically, one side wall of the groove body 1 of the buffer groove is a rubber door 11, and the rubber door 11 faces the direction of the oncoming train. A gap 110 is opened on the rubber door 11, and the current collector shoe 3 can enter the chamber 10 of the groove body 1 through this gap 110. After being blocked and buffered by the rubber door 11, the force when the current collector shoe 3 enters the chamber 10 and contacts the end elbow 2 in the chamber 10 will be much smaller, thus achieving the purpose of reducing mechanical loss.

[0026] To optimize the above solution, please refer to Figure 2 ,A buffer liquid is provided in the groove body 1. In this embodiment, a buffer liquid is provided in the groove body 1. When the current collector shoe 3 enters the groove body 1, the buffer liquid will buffer it again, that is, the current collector shoe 3 will be buffered twice in total. The first time is through the buffer of the rubber door 11, and the second time is through the buffer of the buffer liquid. Finally, when it contacts the end elbow 2, the impact force is very small, greatly reducing the mechanical loss. Since the gap 110 is provided on the rubber door 11 and rubber has elasticity, when the current collector shoe 3 does not enter the groove body 1, it will block the gap 110 by itself, and the buffer liquid will not flow out, or only a small amount of the flowing liquid can flow out.

[0027] To further optimize the above solution, please refer to Figure 2, the buffer solution is the conductive liquid 6. In this embodiment, the conductive liquid 6 is used for buffering. On the one hand, when the train enters the track and the current collector shoe 3 of the train passes through the rubber door 11 and enters the tank body 1, it will come into full contact with the conductive liquid 6. When the current collector shoe 3 makes contact with the end elbow 2, the conductive liquid 6 can effectively buffer the two. On the other hand, since the space between the current collector shoe 3 and the end elbow 2 is filled with the conductive liquid 6, replacing the air between the two in the traditional operation, the conductive liquid 6 can quickly transfer the electric energy in the current collector shoe 3 to the end elbow 2, thus avoiding the arc phenomenon caused by the current breaking through the air and preventing the high voltage from damaging and injuring the end elbow 2 and the current collector shoe 3. Of course, in addition to the conductive liquid 6, ordinary liquid substances that can play a buffering role are also acceptable, and this embodiment does not limit this.

[0028] As an optimized solution of the embodiment of the present invention, please refer to Figure 2 , except for the rubber door 11, several other tank walls of the tank body 1 are insulating walls 12. In this embodiment, the tank body 1 is preferably an insulator. Insulation can be achieved using rubber, plastic, etc.

[0029] As an optimized solution of the embodiment of the present invention, please refer to Figure 1 and Figure 2 , a fixing clip 13 for fixing on the contact rail bracket 4 is installed at the bottom of the tank body 1. In this embodiment, using this fixing clip 13 can facilitate the fixed connection with other parts of the contact rail. Preferably, the fixing clip 13 has an arc surface 130 that can match the rail body, and the fixing clip 13 includes two U-shaped grooves 131 with their openings facing each other. The two U-shaped grooves 131 are respectively installed below the tank body 1, and the length direction of each U-shaped groove 131 is the same as the buffering direction of the tank body 1. The groove surfaces of the two U-shaped grooves 131 are both the arc surface 130. Adopting this structural form can be installed in cooperation with the curvature of the rail body itself. Preferably, the fixing clip 13 is also an insulator, such as rubber or plastic.

[0030] Embodiment Two:

[0031] Please refer to Figure 1 - Figure 3, an embodiment of the present invention provides a contact rail with a buffering function, including an end elbow 2 and the above-mentioned buffering groove for the contact rail, and the end elbow 2 is arranged in the chamber 10 of the groove body 1. In this embodiment, by adopting the above-mentioned buffering groove, the impact of the train current collector 3 can be buffered by its rubber door 11, reducing the impact force between the current collector 3 and the end elbow 2, and thus reducing mechanical wear. After arranging the conductive liquid 6 in the buffering groove, on the one hand, when the train enters the track and the train current collector 3 passes through the rubber door 11 and enters the groove body 1, it will come into full contact with the conductive liquid 6. When contact is generated between the current collector 3 and the end elbow 2, the conductive liquid 6 can effectively buffer the two. On the other hand, since the space between the current collector 3 and the end elbow 2 is filled with the conductive liquid 6, replacing the air between the two in traditional operation, the conductive liquid 6 can quickly transfer the electric energy in the current collector 3 to the end elbow 2, thus avoiding the arc phenomenon generated by the current breaking through the air and preventing the end elbow 2 and the current collector 3 from being damaged by high voltage.

[0032] As an optimized solution of the embodiment of the present invention, please refer to Figure 3 , the end elbow 2 is arranged along the extending direction of the rail body, and a section of the end elbow 2 close to the rubber door 11 is a buffering section 20. In this embodiment, by setting this buffering section 20, it can play a buffering role again. Preferably, the buffering section 20 is an arc section, and the arc section bends downward. Using an arc can enable the current collector 3 to gradually transition along the curvature of the end elbow 2 to the straight section 21 of the contact rail, realizing a smooth transition from the end elbow 2 of the contact rail to the contact rail.

[0033] As an optimized solution of the embodiment of the present invention, please refer to Figure 1 , a bracket base 5 is arranged below the contact rail bracket 4, and the contact rail bracket 4 is locked to the bracket base 5 by bolts.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A buffer groove for a contact rail, comprising a groove body, characterized in that: The slot body has a chamber for accommodating an end elbow that can contact the current collector shoe. One side of the slot body is a rubber door, and the rubber door has a slit for the current collector shoe to enter the slot body. A fixing clip for fixing on the contact rail bracket is installed at the bottom of the slot body, and the fixing clip is an insulator.

2. The buffer groove for the contact rail according to claim 1, wherein: A buffer solution is provided in the slot body.

3. The buffer groove for the contact rail according to claim 2, characterized in that: The buffer solution is a conductive solution.

4. The buffer groove for the contact rail according to claim 1, wherein: Except for the rubber door, the other several slot walls of the slot body are insulating walls.

5. The buffer groove for the contact rail according to claim 1, characterized in that: The fixing clip has an arc surface that can match the rail body.

6. The buffer groove for the contact rail according to claim 5, wherein: The fixing clip includes two U-shaped grooves with opposite openings. The two U-shaped grooves are respectively installed below the slot body, and the length direction of each U-shaped groove is consistent with the buffering direction of the slot body. The groove surfaces of the two U-shaped grooves are both the arc surfaces.

7. A contact rail with a buffering function, including an end elbow, characterized in that: It further includes a buffer slot for the contact rail as described in any one of claims 1-6, and the end elbow is arranged in the chamber of the slot body.

8. The contact rail with a buffering function according to claim 7, characterized in that: The end elbow is arranged along the extending direction of the rail body, and a section of the end elbow close to the rubber door is a buffer section.

9. The contact rail with a buffering function according to claim 8, wherein: The buffer section is an arc section, and the arc section bends downward.

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