Electric coupler pushing device

Abstract

The present invention provides an electric coupler pushing device, comprising: a support frame; an auxiliary support structure: including an auxiliary support rod, axially connected to the support frame; a driving mechanism: including a mounting end and a power output end, the mounting end being rotatably mounted on the support frame, and the power output end being connected to the auxiliary support rod; a force transmission mechanism: including a pushing rod; one end of the pushing rod is rotatably connected to the electric coupler, and the other end of the pushing rod is axially connected to the auxiliary support rod; the driving mechanism is configured such that when the support rod is driven to rotate towards the side close to the longitudinal center line of the coupler, the electric coupler is retracted. The rotary arm internally rotating type electric coupler pushing device provided by the present invention has the advantages of a cylinder direct pushing structure and a reverse pushing self-locking pushing structure, and the structure is simpler and more compact than most reverse pushing self-locking pushing mechanisms, and can ensure that the pushing force is parallel to the direction of the longitudinal center line of the coupler after pushing in place, improving the stability after pushing out.

Description

Technical Field

[0001] The present invention relates to the technical field of rail vehicles, and particularly to an electric coupler pushing device. Background Art

[0002] The front-end components of a vehicle mainly complete the coupling and communication between two vehicles, and the coupler buffer components are installed at the front end of the vehicle. With the development of rail transit technology, more and more control functions are required for vehicles, and the front-end components and components of the vehicle increase accordingly, resulting in an increasingly smaller installation space for the existing vehicle coupler. Therefore, the requirement for the structural compactness of the front-end coupler buffer device is also getting higher and higher. The requirements for rapid reconnection and flexible formation also lead to an increasing number of projects requiring electric couplers in the coupler buffer devices at the middle section of the vehicle. However, the coupler buffer devices at the middle section are restricted by factors such as the vehicle gangway above the coupler buffer device or the height limit below the coupler buffer device, and usually have higher requirements for the structural compactness of the coupler buffer device.

[0003] An electric coupler pushing device is used to push the electric coupler of the coupler to complete the coupling of the couplers, and is configured at the front end of the vehicle. Two typical structures of the existing electric coupler pushing mechanisms are: the cylinder direct-pushing structure and the reverse-pushing self-locking pushing structure.

[0004] The principle of the cylinder direct-pushing structure is relatively simple. The driving mechanism, the pushing rod, and the electric coupler are arranged in a straight line. There are fewer components and higher reliability, but it occupies the largest space, and it is not easy to set self-locking, or the structure becomes more bloated after setting self-locking and there is a certain risk of unsmooth unlocking.

[0005] The advantages and disadvantages of the typical structure of the reverse-pushing self-locking pushing structure are as follows. For example, for the pushing structure disclosed in the patent No. CN103818403B, the pushing structure is connected by multiple rod shafts, and there is no straightening and locking mechanism after pushing in place. The pushing rod connected to the electric coupler is prone to tilt. The pushing force has an upward inclination component that is not horizontal in the direction of the longitudinal center line of the coupler, which easily causes a flared mouth on the connection surface of the two connected electric couplers and results in unstable connection signals. Another example is the pushing structure disclosed in the patent No. CN101698413A. This mechanism has a compact structure, and the pushing force is parallel to the longitudinal center line direction of the coupler after pushing in place, and the signal is stable after connection. However, compared with the direct-pushing structure, this structure requires a greater pushing force; for other reverse-pushing self-locking pushing mechanisms that are currently widely used, they occupy a larger space of the coupler. Summary of the Invention

[0006] The purpose of the present invention is to provide an electric coupler pushing device that occupies a small space and has a stable pushing effect.

[0007] To achieve the above purpose, the technical solution adopted by the present invention is:

[0008] An electric coupler pushing device, comprising:

[0009] Support frame;

[0010] Auxiliary support structure: including an auxiliary support rod, pivotally connected to the support frame;

[0011] Drive mechanism: including a mounting end and a power output end, the mounting end is rotatably mounted on the support frame, and the power output end is connected to the auxiliary support rod;

[0012] Force transmission mechanism: including a push rod; one end of the push rod is rotatably connected to the electric coupler, and the other end of the push rod is pivotally connected to the auxiliary support rod;

[0013] The drive mechanism is configured such that when the support rod is driven to rotate towards the side close to the longitudinal center line of the coupler, the electric coupler retracts.

[0014] Preferably, the auxiliary support rod is a "V"-shaped rod, one rod end of the "V"-shaped rod is pivotally connected to the push rod, and the other rod end of the "V"-shaped rod is connected to the power output end of the drive mechanism.

[0015] Preferably, in the horizontal direction, the connection point of the "V"-shaped rod and the support frame is located on the side closer to the longitudinal center line of the coupler relative to the connection point of the push rod and the electric coupler.

[0016] Preferably, the auxiliary support structure further includes:

[0017] A first intermediate rod, one end of the first intermediate rod is pivotally connected to the support frame, and the other end is pivotally connected to the push rod;

[0018] A second intermediate rod, one end of the second intermediate rod is pivotally connected to the auxiliary support rod, and the other end is pivotally connected to the first intermediate rod, and the first intermediate rod and the second intermediate rod are pivotally connected to the same point of the push rod.

[0019] Preferably, in the horizontal direction, the connection point of the first intermediate rod and the support frame is located on the side closer to the longitudinal center line of the coupler relative to the connection point of the push rod and the electric coupler.

[0020] Preferably, the drive mechanism and the auxiliary support structure are configured such that when the electric coupler is pushed in place, the push rod is in a horizontal state.

[0021] Preferably, the drive mechanism is further configured such that when the electric coupler is pushed in place, the driving stroke of the drive mechanism reaches the limit to achieve driving lock.

[0022] Preferably, the push rod is an elastic rod.

[0023] Preferably, the drive mechanism is located on the side close to the coupler relative to the rotation center of the first force transmission unit and the support frame.

[0024] The beneficial effects of the coupler provided by the present invention are as follows:

[0025] A push device for a swivel arm internally rotating electric coupler provided by the present invention has the advantages of a cylinder direct push type push structure and a reverse push type self-locking push structure. The structure is simpler and more compact than most reverse push type self-locking push mechanisms, and can ensure that the push force is parallel to the longitudinal center line direction of the coupler after the push is in place, improving the stability after pushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 It is a schematic diagram of the push structure of the first implementation structure of the electric coupler push device;

[0028] Figure 2 It is a schematic diagram of the retraction structure of the first implementation structure of the electric coupler push device;

[0029] Figure 3 It is a schematic diagram of the push structure (push when the cylinder extends) of the second implementation structure of the electric coupler push device;

[0030] Figure 4 It is a schematic diagram of the retraction structure (retraction when the cylinder retracts) of the second implementation structure of the electric coupler push device;

[0031] Figure 5 It is a schematic diagram of the push structure (push when the cylinder retracts) of the second implementation structure of the electric coupler push device;

[0032] Figure 6 It is a schematic diagram of the retraction structure (retraction when the cylinder extends) of the second implementation structure of the electric coupler push device;

[0033] Figure 7 It is a schematic diagram of the push structure of the third implementation structure of the electric coupler push device;

[0034] Figure 8 It is a schematic diagram of the retraction structure of the third implementation structure of the electric coupler push device;

[0035] Figure 9 It is a three-dimensional structure schematic diagram of the push device of the third implementation method of the electric coupler;

[0036] Figure 10 Three-dimensional structure schematic diagram of the second implementation structure (push when the cylinder extends) of the electric coupler push device;

[0037] Among them, the reference numerals in the figures are as follows:

[0038] 1 - Electric coupler, 2 - Pushing rod, 3 - Auxiliary support rod, 301 - First rod body, 302 - Second rod body, 4 - Cylinder, 5 - Pushing track, 6 - First intermediate rod rotating shaft, 7 - First rotating shaft of the pushing rod, 8 - Second rotating shaft of the pushing rod, 9 - Second rotating shaft of the auxiliary support rod, 10 - First rotating shaft of the auxiliary support rod, 11 - Cylinder rotating shaft, 12 - Support frame, 13 - Longitudinal center line of the coupler, 14 - First intermediate rod, 15 - Second intermediate rod, 16 - Second intermediate rod rotating shaft. Detailed implementation manners

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] It should be noted that when an element is referred to as "being disposed on", "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. When an element is referred to as "axially connected" to another element, it can be directly axially connected to the other element or axially connected to the other element through other elements.

[0041] It should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "vertical", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0042] It should be noted that the terms "first" and "second" are only used for descriptive purposes and do not imply relative importance.

[0043] The present invention provides an electric coupler pushing device for pushing the electric coupler 1 to assist in the connection of the electric coupler during coupler connection. The electric coupler pushing device is connected to the electric coupler 1, and the electric coupler 1 is disposed on the pushing track 5 and is controlled by the electric coupler pushing device to be pushed out and retracted. The electric coupler pushing device mainly includes:

[0044] Support frame 12;

[0045] Auxiliary support structure: including an auxiliary support rod 3, which is axially connected to the support frame 12;

[0046] Drive mechanism: It includes a mounting end and a power output end. The mounting end is rotatably mounted on the support frame 12, and the power output end is connected to the auxiliary support rod 3. In this embodiment, the drive mechanism adopts a drive cylinder 4. An air cylinder shaft 11 is formed at the mounting position between the cylinder 4 and the support frame 12. During the telescopic process of the cylinder rod, the auxiliary support rod 3 can be rotated around its connection shaft with the support frame 12.

[0047] Force transmission mechanism: It includes a push rod 2. One end of the push rod 2 is rotatably connected to the electric coupler 1, and the connection point therebetween is the first push rod rotating shaft 7. The other end of the push rod 2 is pivotally connected to the auxiliary support rod 3, and the connection point therebetween is the second push rod rotating shaft 8. The push rod 2 is an elastic rod to achieve a stable pushing effect.

[0048] The drive mechanism is configured such that when the drive support rod 3 moves towards the side close to the longitudinal center line 13 of the coupler, the electric coupler 1 retracts.

[0049] Embodiment 1

[0050] Reference Figure 1 and Figure 2 , which is a schematic structural diagram of the first embodiment of the present invention. The auxiliary support rod 3 is a straight rod. Figure 1 It is a schematic diagram of the extended state of the electric coupler. As can be seen from the figure, the cylinder 4 applies a force on the auxiliary support rod 3, and the auxiliary support rod 3 combines the functions of force transmission and pushing support. When the cylinder 4 extends, it pushes the support rod 3 in the direction away from the longitudinal center line of the vehicle. The support rod 3 rotates around its pivot connection with the support frame 12, and the electric coupler 1 is pushed out. When the cylinder 4 retracts, it pulls the support rod 3 in the direction close to the longitudinal center line of the vehicle. The support rod 3 rotates around its pivot connection with the support frame 12, and the electric coupler 1 is pulled back.

[0051] Relative to the connection point of the auxiliary support rod 3 and the support frame 12, that is, the first rotating shaft 10 of the auxiliary support rod, the cylinder 4 is located on the side close to the longitudinal center line 13 of the coupler. This driving form of the cylinder 4 can save the movement space during the pushing process and make the structure of the pushing device more compact.

[0052] In the horizontal direction, the pivot connection of the auxiliary support rod 3 and the support frame is located on the side closer to the longitudinal center line 13 of the coupler relative to the connection point of the push rod and the electric coupler. That is, the first rotating shaft 10 of the auxiliary support rod is located on the side closer to the longitudinal center line of the coupler relative to the first rotating shaft 7 of the push rod. This structure enables the electric coupler 1 to reach a locked state after being pushed in place.

[0053] More specifically, the cylinder 4 and the auxiliary support rod 3 are configured such that when the electric coupler 1 is pushed into place, the push rod 2 is in a horizontal state. By adjusting the installation position of the driving cylinder 4 on the support frame 12, the dimensions of the auxiliary support rod 3, and its installation position on the support frame 12, after the first force transmission component is pushed out, the push rod 2 can be pushed to the horizontal, and then the electric coupler 1 can be pushed to the horizontal. There is no inclination angle between the push rod 2 and the electric coupler 1, ensuring the stability of the coupler connection.

[0054] The cylinder 4 is further configured such that when the electric coupler 1 is pushed into place, the driving stroke of the cylinder 4 reaches the limit to achieve driving lock. The limit mentioned here means that the pushing stroke of the pushing mechanism reaches the maximum. For the cylinder 4, it means that the cylinder rod extends to the maximum. Specifically in this embodiment, when the electric coupler 1 is pushed out, the cylinder rod extends to the maximum stroke. At this time, the push rod 2 is in a horizontal state, achieving push-out lock.

[0055] Embodiment 2

[0056] The auxiliary support rod 3 is a "V"-shaped rod. One end of the first rod body 301 of the "V"-shaped rod is axially connected to the push rod 2, and the other end of the second rod body of the "V"-shaped rod is connected to the power output end of the cylinder 4. The connection point therebetween is the second rotating shaft 9 of the auxiliary support rod. The angled end of the "V"-shaped rod is rotatably installed on the support frame 12 as the first rotating shaft 10 of the auxiliary support rod. The "V"-shaped rod can adopt an integral structure, referring to Figure 4 , or a structure with two rigidly spliced rods.

[0057] In order to achieve self-locking after the electric coupler 1 is pushed into place, in the horizontal direction, the connection point of the "V"-shaped rod and the support frame 12 is located on the side closer to the longitudinal center line 13 of the coupler relative to the connection point of the push rod and the electric coupler. Generally speaking, the axis connection point of the "V"-shaped rod and the support frame 12 and the axis connection point of the push rod 2 and the electric coupler 1 are not on the same horizontal straight line. That is, the first rotating shaft 10 of the auxiliary support rod is located on the side closer to the longitudinal center line of the coupler relative to the first rotating shaft 7 of the push rod. In this way, self-locking can be formed after the electric coupler 1 is pushed into place.

[0058] Same as Embodiment 1, the driving mechanism and the auxiliary support structure are configured such that when the electric coupler is pushed into place, the push rod 2 is in a horizontal state. This can be achieved by adjusting the length and installation position of the cylinder 4 and the auxiliary support rod 3 in the auxiliary support structure.

[0059] The structure refers to Figures 3 to 6 , which is a schematic diagram of the structure of the electric coupler pushing device for the second implementation method. Among them Figure 3 and Figure 4 correspond to a set of implementation structures, Figure 5 and Figure 6Corresponding to another implementation structure, the difference between the two sets of implementation structures lies in the different installation positions of the cylinder 4.

[0060] As Figure 3 and Figure 4 shown, the position of the driving cylinder 4 relative to the first rotating shaft 10 of the auxiliary support rod is on the side away from the electric coupler 1, that is, on the right side of the first rotating shaft 10 of the auxiliary support rod shown in the figure.

[0061] After the electric coupler 1 is pushed out in place, as Figure 3 shown, the driving cylinder 4 extends to the maximum stroke position. At this time, the push rod 2 is in the direction parallel to the longitudinal center line 13 of the coupler; the connecting shaft of the push rod 2 and the "V"-shaped rod is on the side away from the longitudinal center line 13 of the coupler relative to the connection line between the connecting shaft of the push rod 2 and the electric coupler and the connecting shaft of the "V"-shaped rod and the support frame. Combining with the attached drawings, that is, the second rotating shaft 8 of the push rod and the longitudinal center line 13 of the coupler are respectively on both sides of the connection line between the first rotating shaft 7 of the push rod and the first rotating shaft 10 of the auxiliary support rod. The included angle a between the connection line between the push rod 2 and one side of the "V"-shaped rod connected to it is greater than 180°. In this embodiment, it corresponds to 185°. Since the included angle a is greater than 180°, when an external force pushes the electric coupler 1, the "V"-shaped rod has a tendency to rotate towards the opposite side of the longitudinal center line 13 of the coupler, and the driving cylinder 4 has a tendency to be pulled. At this time, since the driving cylinder 4 has extended to the maximum stroke position and the driving cylinder cannot continue to extend, it prevents the rotating arm from rotating towards the opposite side of the longitudinal center line 13 of the coupler, thereby preventing the electric coupler 1 from retracting, thus forming a self-locking.

[0062] When the electric coupler 1 retracts, as Figure 4 shown, the driving cylinder 4 retracts, which will drive the "V"-shaped rod to rotate towards the longitudinal center line 13 of the coupler, thereby retracting the electric coupler. After being completely retracted, see Figure 3 shown. When the electric coupler retracts, since the "V"-shaped rod rotates towards the longitudinal center line 13 of the coupler, the "V"-shaped rod 3 does not occupy more space after retraction compared to the state when the electric coupler 1 is pushed out in place, thereby making the space above the pushing mechanism of the electric coupler 1 more compact.

[0063] As Figure 5 and Figure 6As shown, the installation point of the driving cylinder 4 relative to the first force transmission unit and the support frame 12, that is, the position where the rotating shaft 10 is located, is on the side close to the electric coupler 1, that is, the left side of the rotating shaft 10 shown in the figure. The principles of pushing, self-locking and retracting of this implementation structure are similar to those of the above implementation. The difference is that when the driving cylinder 4 retracts, the electric coupler 1 is pushed out; when the driving cylinder 4 extends, the electric coupler 1 retracts. The beneficial effect of this structural improvement compared with the first implementation is as follows: in the above implementation, the retraction of the driving cylinder 4 drives the retraction of the electric coupler 1. When the electric coupler 1 retracts, the locking needs to be released, and there is a certain adhesion force between the two connected electric couplers 1. Therefore, a greater driving force is often required when the electric coupler 1 retracts; and since the driving force when the driving cylinder 4 extends is greater than the driving force when it retracts, driving the retraction of the electric coupler 1 during the extension process of the cylinder 4 can increase the driving force when the electric coupler 1 retracts to overcome the greater resistance when the electric coupler 1 retracts.

[0064] Embodiment 3

[0065] Different from Embodiment 1 and Embodiment 2, the auxiliary support structure further includes:

[0066] A first intermediate rod 14, one end of the first intermediate rod 14 is pivotally connected to the support frame 12, and the other end is pivotally connected to the push rod 2;

[0067] A second intermediate rod 15, one end of the second intermediate rod 15 is pivotally connected to the auxiliary support rod 3, and the other end is pivotally connected to the first intermediate rod 14.

[0068] In the horizontal direction, the pivot connection point of the first intermediate rod 14 and the support frame 12 is on the side closer to the longitudinal center line 13 of the coupler relative to the connection point of the push rod 2 and the electric coupler 1. For the same principle as above, with this structure, when the electric coupler 1 is pushed in place, it can be in a locked and stable state.

[0069] Same as Embodiment 1 and Embodiment 2, the driving mechanism and the auxiliary support structure are configured such that when the electric coupler is pushed in place, the push rod 2 is in a horizontal state. This can be achieved by adjusting the lengths and installation positions of the cylinder 4 and the first intermediate rod 14, the second intermediate rod 15, and the auxiliary support rod 3 in the auxiliary support structure.

[0070] Reference Figure 7 and Figure 8The structural improvement shown adds a first intermediate rod rotating shaft 6, a first intermediate rod 14, a second intermediate rod 15, and a second intermediate rod rotating shaft 16 fixed to the guiding support frame 12. The "V"-shaped rod (auxiliary support rod 3) consists of a first rod body 301 and a second rod body 302, and the two rod bodies are rigidly connected. By introducing the second intermediate rod rotating shaft 16 and the second intermediate rod 15 hingedly fixed to the guiding support frame 12, the hinged fixing position of the first rotating shaft 10 of the "V"-shaped rod can be moved towards the side of the longitudinal center line 13 of the coupler. Similar to the structure in Embodiment 2, the driving cylinder 4 can be selectively arranged on both sides of the first rotating shaft 10 of the "V"-shaped rod. When it is on the side close to the electric coupler 1 relative to the first rotating shaft 10 of the "V"-shaped rod, the retracted state of the driving cylinder 4 realizes the pushing out of the electric coupler 1; when it is on the opposite side, the extended state of the driving cylinder 4 realizes the pushing out of the electric coupler 1.

[0071] In order to enable the electric coupler 1 to achieve self-locking after being pushed out in place, in the horizontal direction, the plane where the first intermediate rod 14 is axially connected to the support frame is closer to the plane where the first force transmission element is axially connected to the driving mechanism than the plane where the pushing rod is axially connected to the electric coupler. As Figure 7 shown, the driving cylinder 4 retracts. At this time, the pushing rod 2 is in a direction parallel to the longitudinal center line 13 of the coupler; the connecting shaft of the pushing rod 2 and the first intermediate rod 14 is located on the side away from the longitudinal center line 13 of the coupler relative to the connecting line of the connecting shaft of the pushing rod 2 and the electric coupler and the connecting shaft of the first intermediate rod 14 and the support frame. Combining with the attached drawings, that is, the second rotating shaft 8 of the pushing rod and the longitudinal center line 13 of the coupler are respectively located on both sides of the connecting line of the first rotating shaft 7 of the pushing rod and the first intermediate rod rotating shaft 6. The included angle b between the pushing rod 2 and the connecting line of one side of the first intermediate rod 14 connected to it is greater than 180°. Since the included angle b is greater than 180°, it is still 185° in this embodiment. When an external force pushes the electric coupler 1, the first intermediate rod 14 has a tendency to rotate towards the opposite side of the longitudinal center line 13 of the coupler, and the driving cylinder 4 has a tendency to be pulled. At this time, since the driving cylinder 4 has extended to the maximum stroke position and the driving cylinder cannot continue to extend, it prevents the rotating arm from rotating towards the opposite side of the longitudinal center line 13 of the coupler, thereby preventing the electric coupler 1 from retracting, thus forming self-locking.

[0072] In addition to the beneficial effects of the structure in Embodiment 2, the improved structure also has the following beneficial effects: After the first rotating shaft 10 of the "V"-shaped rod moves towards the side of the longitudinal center line 13 of the coupler, it allows the hinged fixing position of the driving cylinder 4 to move towards the side of the longitudinal center line 13 of the coupler, making the hinged fixing position of the driving cylinder 4 more flexible, so that in some projects with more coupler accessories, the driving cylinder 4 can avoid interference with some parts; further improving the compactness of the pushing mechanism; allowing the optimization of the spatial layout of each component of the pushing mechanism to avoid mutual interference.

[0073] The coupler pushing device provided by this solution is a new type of rotating arm internally rotating electric coupler pushing device, which has the advantages of a cylinder direct pushing structure and a reverse pushing self-locking pushing structure, and can improve the stability of coupler connection.

[0074] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Electric coupler pushing device, characterized in that, Comprising: Support frame; Auxiliary support structure: including an auxiliary support rod, pivotally connected to the support frame; Drive mechanism: including a mounting end and a power output end, the mounting end is rotatably mounted on the support frame, and the power output end is connected to the auxiliary support rod; Force transmission mechanism: including a push rod; One end of the push rod is rotatably connected to the electric coupler, and the connection point therebetween is the first pivot shaft of the push rod. The other end of the push rod is pivotally connected to the auxiliary support rod, and the connection point therebetween is the second pivot shaft of the push rod; the push rod is a single rod structure; the auxiliary support rod is directly rotatably connected to the push rod; the connection end of the power output end of the drive mechanism to the auxiliary support rod is at the second pivot shaft of the push rod; The drive mechanism is configured such that when the auxiliary support rod is driven to rotate towards the side closer to the longitudinal center line of the coupler, the electric coupler retracts.

2. The electric coupler pushing device according to claim 1, characterized in that, The auxiliary support rod is a "V"-shaped rod, one rod end of the "V"-shaped rod is pivotally connected to the push rod, and the other rod end of the "V"-shaped rod is connected to the power output end of the drive mechanism.

3. The electric coupler pushing device according to claim 1 or 2, characterized in that, In the horizontal direction, the pivot connection point of the auxiliary support rod to the support frame is located on the side closer to the longitudinal center line of the coupler relative to the connection point of the push rod to the electric coupler.

4. The electric coupler pushing device according to claim 1 or 2, characterized in that, The drive mechanism and the auxiliary support structure are configured such that when the electric coupler is pushed in place, the push rod is in a horizontal state.

5. The electric coupler pushing device according to claim 4, wherein The drive mechanism is further configured such that when the electric coupler is pushed in place, the driving stroke of the drive mechanism reaches the limit to achieve driving lock-up.

6. The electric coupler pushing device according to claim 1, characterized in that, Relative to the connection point of the auxiliary support structure to the push rod, the drive mechanism is located on the side closer to the center line of the coupler.

7. The electric coupler pushing device according to claim 1, wherein The push rod is an elastic rod.

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