Electric coupler and railway vehicle

Abstract

The present invention provides an electric coupler and a rail vehicle. The front end face of the electric coupler body is an electrical connection end, and the horizontal side faces of the electrical connection end in the connection direction are respectively a first side face and a second side face; a swing arm mounting shaft is provided on each of the two side faces; the end cover includes an end cover panel and two end cover connecting plates spaced apart on the end cover panel; an end cover rotating shaft is provided on the outer surface of each end cover connecting plate; the end cover includes two swing arms, each including a swing arm body, which is rotatably mounted on the swing arm mounting shaft on the corresponding side; the swing arm body includes an end cover connecting portion, which is rotatably connected to the end cover rotating shaft on the corresponding side; after the end cover is installed with the electric coupler body, the inner surfaces of the two end cover connecting plates respectively contact the first side face and the second side face of the electric coupler, and the inner surface of the end cover panel contacts the electrical connection end; the inner surface of the end cover panel on the side contacting the electrical connection end is flat, which can better contact the electrical connection end and ensure sealing.

Description

Technical Field

[0001] The present invention relates to the technical field of train coupler buffer devices, in particular to an electric coupler and a railway vehicle. Background Art

[0002] The electric coupler is used to transmit signals for reconnecting trains. It is fixed to the mechanical coupler and its extension and retraction are controlled by the coupler's push mechanism. Simultaneously with the coupler's extension and retraction, the coupler's end cap automatically opens and closes along a defined trajectory, controlled by its own cap opening and closing mechanism and a cap opening and closing actuator mounted on the mechanical coupler.

[0003] The existing electric coupler end cover opening and closing method is mainly based on rotation (some end cover opening and closing mechanisms can be combined with a certain degree of translation). The inner surface of the electric coupler end cover is generally an arc surface, while the front end surface of the connecting sealing ring is generally a plane. As a result, after the electric coupler end cover is closed, the inner surface of the end cover and the electric coupler sealing ring cannot be completely pressed together, affecting the sealing performance.

[0004] There are two main types of end cover opening and closing mechanisms for existing electric couplers:

[0005] The first is an opening and closing mechanism in which the end cover has only a flipping action when opening and closing: the end cover shaft 3 is fixed, the structure is simple, but the sealing performance of the electric coupler is weak. Figures 1a to 1d As shown, the front end of the electric coupler 1 is an end cover 2, which rotates around the rotating shaft 3 when opened and closed. The inner surface 201 of the end cover is arc-shaped, and the inner surface of the end cover is not tightly attached to the sealing ring 4, resulting in poor sealing performance.

[0006] The second type of end cover includes two actions: movement and rotation when opening and closing (representative structure patent number: ZL201810679473.7, ZL201410795402.5): Reference Figures 2a to 2d As shown, its rotating shaft 3 can move forward and backward. When flipping, the rotating shaft moves forward and then flips. When closing, the flip cover 2 falls first and the rotating shaft 3 moves backward to engage. The inner surface 201 of this type of end cover is arc-shaped, and the sealing ring is changed to a structure with an arc-shaped burr. When the end cover is closed, it is tightly attached to the inner surface 201, and the sealing performance is good. However, there is no pressure between the inner surface 201 of the end cover and the sealing ring, and the opening and closing mechanism is relatively complicated. The flip cover 2 is prone to jamming and poor stability during opening. Summary of the Invention

[0007] The purpose of the present invention is to solve one of the above technical problems, improve the structure of the electric coupler end opening and closing mechanism, and provide an electric coupler and railway vehicle with stable movement and good sealing effect.

[0008] To achieve the above object, the technical solution adopted in the present invention is:

[0009] An electric coupler, comprising:

[0010] The electrical coupler body has a front end surface serving as an electrical connection end, and the side surfaces on both sides of the electrical connection end in the connecting direction are respectively a first side surface and a second side surface; the first side surface and the second side surface are respectively provided with a swing arm mounting shaft;

[0011] End cover: includes an end cover panel and two end cover connecting plates spaced apart on the end cover panel; an end cover rotating shaft is provided on the outer surface of each end cover connecting plate;

[0012] Swing arms: including two, each swing arm includes a swing arm body, the swing arm body is rotatably mounted on the swing arm mounting shaft on the corresponding side; the swing arm body includes an end cover connecting portion, which is rotatably connected to the end cover rotating shaft on the corresponding side;

[0013] After the end cover is installed with the electrical coupler body, the inner surfaces of the end cover connecting plates on both sides respectively fit in with the first side surface and the second side surface of the electrical coupler, and the inner surface of the end cover panel fits in with the electrical connection end; the inner surface of the side of the end cover panel that fits in with the electrical connection end is flat.

[0014] In some embodiments of the present invention, the electric coupler further comprises:

[0015] slider;

[0016] The first side surface and the second side surface of the electric coupler are respectively provided with a slider shaft, and the slider is rotatably mounted on the slider shaft;

[0017] A slider groove is provided on the inner surface of the end cover connecting plate, and the slider is arranged in the slider groove; based on the position of the end cover rotating shaft, the slider groove extends from a position close to the end cover rotating shaft to a direction close to the end cover panel, and its extension direction is perpendicular to the inner surface of the end cover panel.

[0018] In some embodiments of the present invention, the outer surface of the end cover connecting plate where the slider groove is located is formed as a protruding structure, and the slider groove is a groove structure formed from the inner surface of the end cover connecting plate to the protruding position. The depth of the slider groove is equal to the height of the slider, so that after the slider is set in the slider groove, the inner surfaces of the end cover connecting plates on both sides respectively fit the first side surface and the second side surface of the electric coupler.

[0019] In some embodiments of the present invention, the slider is square.

[0020] In some embodiments of the present invention, the electric coupler further comprises:

[0021] elastic parts;

[0022] An elastic member fixing pin is further provided on the outer surface of the end cover connecting plate, and two ends of the elastic member are respectively fixed on the elastic member fixing pin and the swing arm mounting shaft.

[0023] In some embodiments of the present invention, an end cover rotation drive mechanism is further included, and two protruding blocks are arranged at intervals on the inner end surface of each swing arm body. The driving part of the driving mechanism for the swing arm is located between the two protruding blocks. The end cover driving mechanism can contact the two protruding blocks respectively during the opening and closing processes, so that the swing arm body can be driven to rotate.

[0024] In some embodiments of the present invention, the swing arm body is T-shaped, and is defined in a clockwise direction. The swing arm body includes arm one, arm two and arm three. The intersection of arm one, arm two and arm three is rotatably connected to the swing arm mounting shaft, and arm three is rotatably connected to the end cover shaft.

[0025] In some embodiments of the present invention, the protruding blocks are located on arm one and arm two.

[0026] In some embodiments of the present invention, a sealing ring is provided along the port of the electrical connection end of the electrical coupler body, and the inner surface of the end cover can be in contact with the sealing ring.

[0027] In some embodiments of the present invention, a railway vehicle is further provided, comprising the above-mentioned electric coupler.

[0028] The electric vehicle and rail vehicle provided by the present invention have the following beneficial effects:

[0029] 1. A crank slider structure is used to control the opening and closing trajectory of the sealed end cover of the electric coupler: during the opening and closing process of the cover, its rotation center will first move forward synchronously, turn over the highest point, and then move backward synchronously; during the opening and closing process of the end cover, there will be no motion interference with the coupler body.

[0030] 2. The internal sealing surface of the electric coupler end cover has been changed from the original arc surface to a flat surface. The inner surface of the end cover is tightly sealed with the surface of the sealing ring at the front end of the electric coupler housing, which can further improve the protection level of the electric coupler in the retracted (end cover closed) state; when the end cover is closed, the tension on the end cover is nearly perpendicular to the front end surface of the electric coupler, so that the end cover and the sealing ring fit more tightly, which can be better than the sealing performance of existing electric couplers; the end cover opening and closing mechanism has a simple structure, and the flip cover action is not easy to get stuck.

[0031] 3. The electric coupler is used in rail vehicles to improve the electrical communication performance of rail vehicle coupling. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1a This is a schematic structural diagram of an electric coupler from the first perspective according to the first embodiment of the prior art.

[0034] Figure 1b This is a structural diagram of an electric coupler from a second perspective according to the first embodiment of the prior art.

[0035] Figure 1c This is a schematic diagram of the structure of the electrical coupler end cover in the first embodiment of the prior art.

[0036] Figure 1d This is a schematic diagram of the structure of the electric coupler body according to the first embodiment of the prior art.

[0037] Figure 2a This is a schematic structural diagram of an electric coupler from the first perspective according to the second embodiment of the prior art.

[0038] Figure 2b This is a structural diagram of an electric coupler from a second perspective according to the second embodiment of the prior art.

[0039] Figure 2c This is a schematic diagram of the structure of the electrical coupler end cover according to the second embodiment of the prior art.

[0040] Figure 2d This is a schematic diagram of the structure of the electric coupler body according to the second embodiment of the prior art.

[0041] Figure 3 This is a schematic diagram of the end cover structure of the present invention;

[0042] Figure 4 This is a schematic diagram of the structure of the electric coupler body of the present invention;

[0043] Figure 5a This is a schematic structural diagram of the end cover in a closed state of the present invention;

[0044] Figure 5b This is a schematic diagram of the structure of the end cover of the present invention in the intermediate state of opening;

[0045] Figure 5c This is a structural schematic diagram of the end cover of the present invention in a fully opened state;

[0046] Figure 6 This is a schematic diagram of the swing arm structure of the present invention;

[0047] Figure 7 This is a structural schematic diagram of the assembled state of the electrical coupler and the mechanical coupler of the present invention;

[0048] Figure 8 This is a structural schematic diagram of the assembled state of the electrical coupler and the mechanical coupler of the present invention;

[0049] in:

[0050] 1-Ontology;

[0051] 2-end cover, 201-inner surface of the end cover;

[0052] 3-end cover shaft;

[0053] 4-sealing ring;

[0054] 5-electrical coupler body, 501-electrical connection end, 502-first side surface, 503-second side surface;

[0055] 6-end cover, 601-end cover panel, 602-end cover connecting plate, 603-slider groove, 604-inner surface of end cover panel;

[0056] 7-end cover shaft;

[0057] 8-swing arm, 801-arm one, 802-arm two, 803-arm three, 804-protruding block, 805-swing arm shaft mounting hole, 806-end cover shaft mounting hole;

[0058] 9-swing arm mounting shaft;

[0059] 10- Slider;

[0060] 11-slider shaft;

[0061] 12- elastic member;

[0062] 13-elastic member fixing pin;

[0063] 14-sealing ring;

[0064] 15-end cover driving mechanism;

[0065] 16-Mechanical coupler. DETAILED DESCRIPTION

[0066] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0067] It should be noted that when an element is referred to as being “disposed on” or “connected to” another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it can be directly connected to the other element or indirectly connected to the other element.

[0068] It should be understood that the terms "upper," "lower," "horizontal," "inner," and "outer" and the like, indicating positions or relationships, are based on the positions or relationships depicted in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and are therefore not to be construed as limitations on the present invention. The terms "first," "second," and the like are used for descriptive purposes only and are not intended to imply importance.

[0069] The first embodiment of the present invention provides an electric coupler, which is part of a rail vehicle coupler buffer device and is used for electrical connection when a vehicle is coupled. The coupler comprises an electric coupler body, an end cap, a swing arm, etc., and is described in detail below.

[0070] The electrical coupler body 5 is typically a rectangular parallelepiped, with the front end surface serving as the electrical connection terminal 501, which is equipped with a point-connection plug. The electrical connection terminal 501 is connected horizontally. Along the two horizontal sides of the electrical coupler body 5 are a first side surface 502 and a second side surface 503. The first and second side surfaces 502, 503 are each provided with a swing arm mounting shaft 9. These shafts are protruding shafts located opposite the first and second side surfaces 502, 503.

[0071] End cap 6: Installed on the electrical coupler body 5, it can be opened and closed relative to the electrical connection end of the electrical coupler body 5. When the end cap 6 is open, the electrical connection end 501 is exposed; when the end cap 6 is closed, the electrical connection end 501 is sealed. End cap 6 comprises an end cap panel 601 and two end cap connecting plates 602 spaced apart from the end cap panel 601. In this embodiment, the two end cap connecting plates 602 are symmetrically arranged perpendicular to the surface of the end cap panel 601. The area between the two end cap connecting plates 602 is defined as the inner side of the end cap panel 601, which mates with the electrical connection end 501 of the electrical coupler 5. The portion of the two end cap connecting plates 602 that abuts the first side 502 and second side 503 of the electrical coupler body 5 is the inner surface of the end cap connecting plates 602. Each end cap connecting plate is provided with an end cap rotating shaft 7 on its outer surface; the end cap rotating shaft 7 is a protruding shaft disposed relative to the outer surface. When the end cover 6 is open, the end cover rotating shaft 7 is located on the side closer to the end cover panel 601 relative to the swing arm mounting shaft 9; when the end cover 6 is closed, the end cover rotating shaft 7 and the swing arm mounting shaft 9 are on the same vertical line.

[0072] Two swing arms 8 are included. Each swing arm 8 comprises a swing arm body, rotatably mounted on the corresponding swing arm mounting shaft 9. The swing arm body also includes an end cap connection portion, rotatably connected to the corresponding end cap rotation shaft 7. Specifically, a swing arm 8 is mounted on each of the first side 502 and the second side 503 of the electric coupler body 5. The two swing arms 8 are used to mount the end cap connection plates 602 on either side of the end cap, respectively.

[0073] After the end cover 8 is installed on the electrical coupler body, the inner surfaces of the end cover connecting plates 602 on both sides respectively fit in with the first side surface 502 and the second side surface 503 of the electrical coupler, and the inner surface 604 of the end cover panel fits in with the electrical connection end; the inner surface of the side where the end cover panel 601 fits in with the electrical connection end 501 is flat.

[0074] In order to standardize the opening and closing trajectory of the end cover 6 , in some embodiments of the present invention, the electric coupler further includes a slider 10 .

[0075] The first side 502 and second side 503 of the electric coupler are each provided with a slider shaft 11, on which the slider is rotatably mounted. Slider shaft 11 is a protruding shaft provided relative to the surfaces of the first side 502 and second side 503. Slider shaft 11 is located closer to the electrical connection end 501 than the swing arm mounting shaft 9.

[0076] A slider groove 603 is provided on the inner surface of the end cap connecting plate 602. Slider 10 is positioned within this groove and can move along the trajectory defined by it. Based on the position of the end cap pivot 7, the slider groove 601 extends from near the end cap pivot 7 toward the end cap panel 601, perpendicular to the inner surface 604 of the end cap panel. When the end cap 6 is closed, the slider groove 603 is horizontal.

[0077] In some embodiments of the present invention, the outer surface of the end cover connecting plate 602 where the slider groove 603 is located is formed as a protruding structure, and the slider groove 603 is a groove structure formed from the inner surface of the end cover connecting plate to the protruding position. The depth of the slider groove 603 is equal to the height of the slider, so that after the slider 10 is set in the slider groove 603, the thickness of the slider 10 is located inside the slider groove 603 as a whole, and the inner surfaces of the end cover connecting plates 602 on both sides respectively fit the first side surface 502 and the second side surface 503 of the electric coupler.

[0078] In some embodiments of the present invention, the slider 10 is square, and accordingly, the slider groove 603 is a rectangular groove, the width of which is equal to the width of the slider 10, so that after the slider 10 is installed in the slider groove 603, it can move on the straight line track defined by the slider groove 603.

[0079] In order to better limit the opening and closing movement of the end cover 6 and ensure the fit between the inner surface 604 of the end cover and the electric coupler connection end 501 , in some embodiments of the present invention, the electric coupler further includes an elastic member 12 , which can be a spring.

[0080] An elastic member fixing pin 13 is further provided on the outer surface of the end cover connecting plate 602 , and both ends of the elastic member 12 are fixed on the elastic member fixing pin 13 and the swing arm mounting shaft 9 respectively.

[0081] During the opening process of the end cover 6, the elastic member 12 is stretched. After the end cover 6 is closed, the elastic member 12 can still maintain a certain pulling effect to ensure the fit between the inner surface 604 of the end cover and the electric coupler connection end 501.

[0082] Some embodiments of the present invention further include an end cap rotation drive mechanism 15. Each swing arm body has protruding blocks spaced apart on its inner end surface. The drive portion of the drive mechanism 15 that drives the swing arm 8 is located between the two protruding blocks. The end cap drive mechanism 15 can contact the two protruding blocks during both the opening and closing of the drive mechanism, thereby driving the swing arm body to rotate. In actual use, the drive mechanism 15 is typically mounted on a mechanical coupler 16 and drives the swing arm 8 to rotate via horizontal motion.

[0083] In some embodiments of the present invention, the swing arm body is T-shaped, and is defined in a clockwise direction. The swing arm body includes arm one 801, arm two 802 and arm three 803. A swing arm shaft mounting hole 804 is provided at the intersection of arm one 801, arm two 802 and arm three 803, which is rotatably connected to the swing arm mounting shaft 9. An end cover shaft mounting hole 805 is provided on arm three 803, which is rotatably connected to the end cover rotating shaft 7.

[0084] When the end cover 6 is closed, the swing arm mounting shaft 9 and the end cover rotating shaft 7 are in the same vertical line, arm one 801 and arm three 803 are in a vertical state, and arm two 802 is in a horizontal state.

[0085] In some embodiments of the present invention, a protruding block 804 is located on arm 1 801, and a protruding block 804 may also be provided on arm 2 802. During the movement of the end cover driving mechanism, the protruding block 804 on arm 1 801 and the protruding block 804 on arm 2 802 may be confined. When the end cover 6 is opened, the protruding block 804 on arm 1 801 contacts and exerts a force, pushing arm 1 801 in a counterclockwise direction. When the end cover 6 is closed, the protruding block 804 on arm 2 802 contacts and exerts a force, pushing arm 2 802 in a counterclockwise direction.

[0086] In some embodiments of the present invention, a sealing ring 14 is provided along the port of the electrical connection end 501 of the electrical coupler body, and the inner surface 604 of the end cover panel can be in contact with the sealing ring 14 to ensure sealing.

[0087] A second embodiment of the present invention further provides a railway vehicle, comprising the electric coupler according to the above embodiment.

[0088] The operation process of the electric coupler provided by the present invention is as follows.

[0089] Installation diagram of electrical coupler body 5 and mechanical coupler 15 Figure 7 and Figure 8 .

[0090] Figure 5a The diagram shown is a schematic diagram of the closed state of the end cover 5. At this time, arm 1 801 and arm 3 803 of the swing arm 8 are in a vertical state, arm 2 802 is in a vertical state, and the inner surface 604 of the end cover panel is tightly fitted with the sealing ring 14.

[0091] When the electric coupler is extended ( Figure 5a In this state, the electrical coupler body 5 moves to the left relative to the mechanical coupler 15, and the end cover rotation drive mechanism 15 moves toward the right side as shown in the figure, pushing the protruding block 804 on the arm 1 801, driving the swing arm 8 to rotate counterclockwise along the swing arm mounting shaft 9. The movement of the swing arm 8 drives the position of the end cover rotation shaft 7 to rotate counterclockwise, and then drives the end cover 6 to rotate clockwise. During this process, the slider 10 rotates clockwise along the slider rotation shaft 11 and has a tendency to move downward between the slider groove 603.

[0092] The end cap 6 moves relative to the slider 10 in the direction away from the slider shaft 11 until it reaches Figure 5b state, during which the spring 12 is gradually tensioned; at this time, the electrical coupler body 5 continues to move to the left relative to the mechanical coupler 15, and the protruding block 804 on the arm 801 continues to drive the swing arm 8 along the swing arm mounting shaft 9 according to Figure 5b Rotate counterclockwise. The swing arm 8 pushes the end cover shaft 7 to drive the end cover 8 and the slider 10 to rotate clockwise along the slider shaft 11. At the same time, the end cover 8 moves relative to the slider 10 toward the slider shaft 11 until the electric coupler is fully extended and the end cover 6 is fully opened. Figure 5c State, during which the spring 12 is in a released state.

[0093] When the electric coupler is retracted ( Figure 5c In this state, the electrical coupler body 5 moves to the right relative to the mechanical coupler 15, and the end cover rotation drive mechanism 15 moves toward the left direction as shown in the figure, pushing the protruding block 804 on the second arm 802, driving the swing arm 8 to rotate clockwise along the swing arm mounting shaft 9. The movement of the swing arm 8 drives the position of the end cover shaft 7 to rotate clockwise, and then drives the end cover 6 to rotate counterclockwise. During this process, the slider 10 rotates counterclockwise along the slider shaft 11, and has a tendency to move upward between the slider groove 603.

[0094] The end cap 6 moves relative to the slider 10 in the direction away from the slider shaft 11 until it reaches Figure 5b state, during which the spring 12 is gradually tensioned; at this time, the electrical coupler body 5 continues to move to the right relative to the mechanical coupler 15 and retracts, and the protruding block 804 on the arm 801 continues to drive the swing arm 8 along the swing arm mounting shaft 9 according to Figure 5bRotate clockwise. The swing arm 8 pushes the end cover shaft 7 to drive the end cover 8 and the slider 10 to rotate counterclockwise along the slider shaft 11. At the same time, the end cover 8 moves relative to the slider 10 toward the slider shaft 11 until the electric coupler is fully extended and the end cover 6 is fully opened. Figure 5a State, during which the spring 12 is in a released state.

[0095] The internal sealing surface of the end cover 6 - the inner surface 604 of the end cover panel is flat. When the electric coupler retracts the end cover 6 and closes, the inner surface of the rear end cover and the front sealing surface of the sealing ring 14 can be completely flat and under the tension of the spring 12, the two have a certain compression force, which can improve the protection level of the electric coupler when the end cover is in the closed state.

[0096] During the process of opening and closing the above-mentioned end cover 6, the electric coupler end cover 6 simultaneously includes rotation and linear translation movements. After closing, it can be vertically and positively pressed against the sealing ring 14. During the opening process, it can smoothly pass through the highest point of the shell of the electric coupler body 501 to ensure that there is no jamming during the entire opening and closing process.

[0097] The improved electric coupler end cover and sealing structure enable the sealing ring 14 to be in close contact and compressed with the inner circumference of the end cover 6 when the electric coupler end cover 6 is closed, further improving the protection level of the electric coupler in the retracted (end cover 6 closed) state.

[0098] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An electric coupler, characterized in that: include: The electrical coupler body has a front end surface serving as an electrical connection end, and the side surfaces on both sides of the electrical connection end in the connecting direction are respectively a first side surface and a second side surface; the first side surface and the second side surface are respectively provided with a swing arm mounting shaft; End cover: includes an end cover panel and two end cover connecting plates spaced apart on the end cover panel; an end cover rotating shaft is provided on the outer surface of each end cover connecting plate; Swing arms: including two, each swing arm includes a swing arm body, the swing arm body is rotatably mounted on the swing arm mounting shaft on the corresponding side; the swing arm body includes an end cover connecting portion, which is rotatably connected to the end cover rotating shaft on the corresponding side; After the end cap is installed with the electrical coupler body, the inner surfaces of the end cap connecting plates on both sides are respectively in contact with the first side and the second side of the electrical coupler, and the inner surface of the end cap panel is in contact with the electrical connection end; the inner surface of the end cap panel on the side in contact with the electrical connection end is flat; slider; The first side surface and the second side surface of the electric coupler are respectively provided with a slider shaft, and the slider is rotatably mounted on the slider shaft; The inner surface of the end cover connecting plate is provided with a slider groove, and the slider is arranged in the slider groove; based on the position of the end cover rotating shaft, the slider groove extends from a position close to the end cover rotating shaft to a direction close to the end cover panel, and its extension direction is perpendicular to the inner surface of the end cover panel; It further includes an end cover rotation drive mechanism, and two protruding blocks are arranged at intervals on the inner end surface of each swing arm body. The driving part of the drive mechanism for the swing arm is located between the two protruding blocks. The end cover drive mechanism can contact the two protruding blocks respectively during the opening and closing processes, so that the swing arm body can be driven to rotate.

2. The electric coupler according to claim 1, wherein: The outer surface of the end cover connecting plate where the slider groove is located is formed into a protruding structure. The slider groove is a groove structure formed from the inner surface of the end cover connecting plate to the protruding position. The depth of the slider groove is equal to the height of the slider, so that after the slider is set in the slider groove, the inner surfaces of the end cover connecting plates on both sides respectively fit the first side surface and the second side surface of the electric coupler.

3. The electric coupler according to claim 1, wherein: The sliding block is square.

4. The electric coupler according to claim 1, wherein: The swing arm body is T-shaped and is defined in a clockwise direction. The swing arm body includes arm one, arm two and arm three. The intersection of arm one, arm two and arm three is rotatably connected to the swing arm mounting shaft, and arm three is rotatably connected to the end cover shaft.

5. The electric coupler according to claim 4, characterized in that: The protruding blocks are located on the first arm and the second arm.

6. The electric coupler according to claim 1, wherein: A sealing ring is provided along the port of the electrical connection end of the electrical coupler body, and the inner surface of the end cover can be fitted with the sealing ring.

7. The electric coupler according to claim 1, wherein: Further including: elastic parts; An elastic member fixing pin is further provided on the outer surface of the end cover connecting plate, and two ends of the elastic member are respectively fixed on the elastic member fixing pin and the swing arm mounting shaft.

8. A railway vehicle, characterized in that: The electric coupler comprises the electric coupler according to any one of claims 1 to 7.

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