Front section opening and closing mechanism of high-speed motor train unit

Abstract

The utility model relates to the technical field of high-speed motor train units, and discloses a high-speed motor train unit front section opening and closing mechanism which comprises a motor train unit head shell and a closing shell, an opening and closing mechanism is arranged at the front end of the inner bottom face of the motor train unit head shell and comprises a bottom fixing plate, and a fixing frame is fixedly connected to the middle of the upper surface of the bottom fixing plate. The rear ends of the outer walls of the two sides of the fixing frame are each fixedly connected with two mounting plates. According to the front section opening and closing mechanism of the high-speed motor train unit, the locking mechanism is arranged on the opening and closing mechanism, and under the action that the sector gear is meshed with the limiting stop lever, a user can adjust the position of the limiting stop lever through the exposed rotating block; therefore, locking and limiting of the opening and closing mechanism are completed by blocking the first positioning wheel and the second positioning wheel, the opening and closing mechanism can be effectively prevented from being accidentally opened or closed in the operation process through the design of the locking mechanism, safety is improved, and potential accident risks are reduced.

Description

Technical Field

[0001] This utility model relates to the field of high-speed train technology, and in particular to a front-end opening and closing mechanism for high-speed trains. Background Technology

[0002] The front opening and closing mechanism of a high-speed train is mainly used to connect and separate the locomotive and the carriages during train operation. The function of this mechanism includes ensuring that the doors can be opened safely when the train stops at the platform, effectively preventing accidental disassembly, and maintaining the stability and safety of the structure during train operation. A high-speed train refers to a railway vehicle that can run at a high speed (usually exceeding 200 km / h).

[0003] However, most traditional high-speed train front opening and closing mechanisms lack effective guide wheels and guide rails, resulting in poor stability of the closed shell during opening or closing, which is prone to shaking or deviation, increasing the risk of mechanical wear and failure. Furthermore, traditional mechanisms may open or close unexpectedly during operation, increasing the risk of accidents and potentially endangering passenger safety.

[0004] Therefore, those skilled in the art have provided a front-end opening and closing mechanism for high-speed trains to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a front-end opening and closing mechanism for high-speed trains. This mechanism includes an opening and closing mechanism and a drive mechanism. Driven by an electric push rod, the third arm and the second hinge plate simultaneously open or close the closed outer shells on both sides via a second connecting member. The opening and closing mechanism enhances the smoothness of the opening and closing of the closed outer shells through guide wheels and guide rails, and limits and guides the movement of the closed outer shells, housing them inside the train head shell. This effectively guides the opening and closing process of the closed outer shells, thereby improving their stability during movement, reducing mechanical wear and potential failure risks. This not only improves reliability but also maintains performance stability at high speeds, ensuring the smooth operation of the train.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A high-speed train front opening and closing mechanism includes a train head shell and a closed shell. An opening and closing mechanism is provided at the front end of the inner bottom surface of the train head shell. The opening and closing mechanism includes a bottom fixing plate. A lower fixing frame is fixedly connected to the middle of the upper surface of the bottom fixing plate. Two mounting plates are fixedly connected to the rear ends of the outer walls on both sides of the lower fixing frame. A guide rail is fixedly connected to the lower surface of the mounting plate. A connecting shaft is rotatably connected to both sides of the front end of the inner bottom surface of the lower fixing frame. A first arm is fixedly connected to the outer wall of the connecting shaft. A first hinge plate is hinged to the end of the first arm away from the connecting shaft. A fixing member is fixedly connected to the outer wall of one side of the first hinge plate. A second arm is fixedly connected to the outer wall of the fixing member away from the first hinge plate. A guide plate is rotatably connected to the rear end of the outer wall of one side of the second arm. Guide wheels are rotatably connected to all four sides of the upper surface of the guide plate.

[0008] The opening and closing mechanism is provided with a locking mechanism. The locking mechanism includes a fixed shell. A limit stop is slidably connected to the inner wall of the fixed shell. A toothed groove is opened at the rear end of the middle part of the outer wall of the limit stop. A rotating block is rotatably connected to the rear end of the inner bottom surface of the fixed shell. A sector gear is fixedly connected to the upper surface of the rotating block.

[0009] A drive mechanism is provided at the front end of the inner top surface of the train head shell. The drive mechanism includes an upper fixed plate. An upper fixed frame is fixedly connected to the middle of the lower surface of the upper fixed plate. A hinge seat is fixedly connected to the outer wall of the rear end of the upper fixed frame. Electric push rods are rotatably connected to both sides of the lower surface of the hinge seat. A third arm is rotatably connected to both sides of the front end of the lower surface of the upper fixed frame. A second hinge plate is hinged to the front end of the third arm.

[0010] Through the above technical solution, the opening and closing mechanism of the high-speed train is equipped with a locking mechanism. Under the action of the sector gear and the limit stop, the operator can adjust the position of the limit stop through the exposed rotating block, thereby locking and limiting the opening and closing mechanism by blocking the first positioning wheel and the second positioning wheel. The design of the locking mechanism can effectively prevent the opening and closing mechanism from being opened or closed accidentally during operation, thereby improving safety and reducing potential accident risks.

[0011] Furthermore, the bottom fixing plate is fixedly connected to the middle of the front end of the inner bottom of the train head shell, and the guide wheel slides on the outer wall of the guide rail;

[0012] Through the above technical solution, the sliding connection between the guide wheel and the guide rail enables the closed shell to move smoothly.

[0013] Furthermore, a first positioning wheel is rotatably connected to the front end of one side of the outer wall of the first arm, and a positioning plate is fixedly connected to the outer wall of the other side of the second arm, with a second positioning wheel rotatably connected to the lower surface of the positioning plate;

[0014] The above technical solution enables the locking mechanism to limit and lock the positions of the first positioning wheel and the second positioning wheel through the limit stop, thereby locking and limiting the opening and closing mechanism.

[0015] Furthermore, a first connector is fixedly connected to the outer wall of the front end of the fastener, and a second connector is fixedly connected to the end of the second hinge plate away from the third arm.

[0016] The above technical solution enables the opening and closing mechanism and the drive mechanism to be fixedly connected to the closed housing bolts through the first connector and the second connector.

[0017] Furthermore, the fixed shell is fixedly connected to both sides of the middle part of the inner bottom surface of the lower fixed frame, and the tooth groove meshes with the sector gear;

[0018] The above technical solution enables the sector gear to control the position of the limit stop.

[0019] Furthermore, a push rod is hinged to the outer wall of one side of the sector gear, and a push plate is fixedly connected to the rear end of the outer wall of the push rod;

[0020] The above technical solution enables the rotation of the sector gear to control the position of the push plate via the push rod, thereby contacting the detection buttons with multiple functions, allowing the user to understand the working status of the locking mechanism.

[0021] Furthermore, the upper fixing plate is fixedly connected to the middle of the front end of the inner top surface of the train head shell;

[0022] The above technical solution enables the drive mechanism to be bolted and fixed to the outer shell of the train head.

[0023] Furthermore, a connecting block is fixedly connected to the outer wall of one side of the third arm, and the output end of the electric push rod is hinged to the connecting block;

[0024] The above technical solution enables the electric actuator to control the position of the third arm via the connecting block.

[0025] This utility model has the following beneficial effects:

[0026] 1. This utility model proposes a front-end opening and closing mechanism for high-speed trains. Compared with most traditional front-end opening and closing mechanisms for high-speed trains, this mechanism is equipped with an opening and closing mechanism and a driving mechanism. Driven by an electric push rod, the third arm and the second hinge plate simultaneously open or close the closed outer shells on both sides through the second connecting member. The opening and closing mechanism improves the stability of the closed outer shells during opening and closing through the guide wheels and guide rails, and limits and guides the movement of the closed outer shells, storing the closed outer shells inside the train head shell. This effectively guides the opening and closing process of the closed outer shells, thereby improving the stability of the closed outer shells during movement, reducing mechanical wear and potential failure risks. This not only improves reliability but also maintains performance stability at high speeds, ensuring the smooth operation of the train.

[0027] 2. The high-speed train front opening and closing mechanism proposed in this utility model, compared with most traditional high-speed train front opening and closing mechanisms, has a locking mechanism on the opening and closing mechanism. Under the action of the sector gear and the limit stop bar meshing, the user can adjust the position of the limit stop bar through the exposed rotating block, thereby completing the locking and limiting of the opening and closing mechanism by blocking the first positioning wheel and the second positioning wheel. The design of the locking mechanism can effectively prevent the opening and closing mechanism from being opened or closed accidentally during operation, thereby improving safety and reducing potential accident risks. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the closed outer shell structure of the opening and closing mechanism of the front section of a high-speed train proposed in this utility model;

[0029] Figure 2 This is an isometric drawing of a front-end opening and closing mechanism for a high-speed train proposed in this utility model.

[0030] Figure 3 This is a schematic diagram of the front shell structure of a high-speed train head, which is proposed in this utility model for the opening and closing mechanism of the front section of the train head.

[0031] Figure 4 This is a schematic diagram of the structure of the opening and closing mechanism of the front section of a high-speed train proposed in this utility model;

[0032] Figure 5 This is a schematic diagram of the opening and closing mechanism of the front section opening and closing mechanism of a high-speed train proposed in this utility model.

[0033] Figure 6 This is a schematic diagram of the locking mechanism structure of the front opening and closing mechanism of a high-speed train proposed in this utility model;

[0034] Figure 7This is a schematic diagram of the drive mechanism structure of the front opening and closing mechanism of a high-speed train proposed in this utility model.

[0035] Legend:

[0036] 1. Train head shell;

[0037] 2. Opening and closing mechanism; 201. Bottom fixing plate; 202. Lower fixing frame; 203. Mounting plate; 204. Guide rail; 205. Connecting shaft; 206. First arm; 207. First positioning wheel; 208. First hinge plate; 209. Fixing component; 2010. First connecting component; 2011. Second arm; 2012. Guide plate; 2013. Guide wheel; 2014. Positioning plate; 2015. Second positioning wheel;

[0038] 3. Locking mechanism; 301. Fixed housing; 302. Limiting stop bar; 303. Gear groove; 304. Rotating block; 305. Sector gear; 306. Push rod; 307. Push plate;

[0039] 4. Drive mechanism; 401. Upper fixing plate; 402. Upper fixing frame; 403. Hinge seat; 404. Electric push rod; 405. Third arm; 406. Connecting block; 407. Second hinge plate; 408. Second connecting piece;

[0040] 5. Close the outer shell. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] One embodiment provided by this utility model:

[0043] Reference Figure 1 , 24. A high-speed train front opening and closing mechanism, comprising a train head shell 1 and a closed shell 5, wherein an opening and closing mechanism 2 is provided at the front end of the inner bottom surface of the train head shell 1, the opening and closing mechanism 2 comprising a bottom fixing plate 201, a lower fixing frame 202 fixedly connected to the middle of the upper surface of the bottom fixing plate 201, two mounting plates 203 fixedly connected to the rear ends of the outer walls on both sides of the lower fixing frame 202, guide rails 204 fixedly connected to the lower surface of the mounting plates 203, connecting shafts 205 rotatably connected to both sides of the front end of the middle of the inner bottom surface of the lower fixing frame 202, a first arm 206 fixedly connected to the outer wall of the connecting shaft 205, and a first hinge plate 208 hinged to the end of the first arm 206 away from the connecting shaft 205. A fastener 209 is fixedly connected to the outer wall of one side of the hinge plate 208. A second arm 2011 is fixedly connected to the outer wall of the fastener 209 away from the first hinge plate 208. A guide plate 2012 is rotatably connected to the rear end of the outer wall of the second arm 2011. Guide wheels 2013 are rotatably connected to all four sides of the upper surface of the guide plate 2012. A locking mechanism 3 is provided inside the opening and closing mechanism 2. The locking mechanism 3 includes a fixed shell 301. A limit stop bar 302 is slidably connected to the inner wall of the fixed shell 301. A toothed groove 303 is opened at the rear end of the middle part of the outer wall of the limit stop bar 302. A rotating block 304 is rotatably connected to the rear end of the inner bottom surface of the fixed shell 301. A sector gear 305 is fixedly connected to the upper surface of the rotating block 304.

[0044] A drive mechanism 4 is installed at the front end of the inner top surface of the train head shell 1. The drive mechanism 4 includes an upper fixed plate 401, an upper fixed frame 402 fixedly connected to the middle of the lower surface of the upper fixed plate 401, a hinge seat 403 fixedly connected to the outer wall of the rear end of the upper fixed frame 402, electric push rods 404 rotatably connected to both sides of the lower surface of the hinge seat 403, and third arms 405 rotatably connected to both sides of the front end of the lower surface of the upper fixed frame 402. A second hinge plate 407 is hinged to the front end of the third arms 405. The front opening and closing mechanism of the EMU is equipped with a locking mechanism 3 on the opening and closing mechanism 2. Under the action of the sector gear 305 meshing with the limit stop 302, the operator can adjust the position of the limit stop 302 through the exposed rotating block 304, thereby locking and limiting the opening and closing mechanism 2 by blocking the first positioning wheel 207 and the second positioning wheel 2015. The design of the locking mechanism 3 can effectively prevent the opening and closing mechanism 2 from being opened or closed accidentally during operation, thereby improving safety and reducing potential accident risks.

[0045] Reference Figure 2 , 57. The bottom fixing plate 201 is fixedly connected to the middle of the front end of the inner bottom of the train head shell 1. The guide wheel 2013 slides on the outer wall of the guide rail 204. Under the action of the sliding connection between the guide wheel 2013 and the guide rail 204, the closed shell 5 can move smoothly. The front end of one side of the outer wall of the first arm 206 is rotatably connected to the first positioning wheel 207. The outer wall of the other side of the second arm 2011 is fixedly connected to the positioning plate 2014. The lower surface of the positioning plate 2014 is rotatably connected to the second positioning wheel 207. 15, thereby enabling the locking mechanism 3 to limit and lock the positions of the first positioning wheel 207 and the second positioning wheel 2015 through the limit stop bar 302, thereby locking and limiting the opening and closing mechanism 2. The outer wall of the front end of the fixing member 209 is fixedly connected to the first connecting member 2010, and the end of the second hinge plate 407 away from the third arm 405 is fixedly connected to the second connecting member 408, thereby enabling the opening and closing mechanism 2 and the driving mechanism 4 to be bolted to the closed shell 5 through the first connecting member 2010 and the second connecting member 408.

[0046] Reference Figure 4 , 5 6. The fixed housing 301 is fixedly connected to both sides of the middle of the inner bottom surface of the lower fixed frame 202. The tooth groove 303 meshes with the sector gear 305, so that the sector gear 305 can control the position change of the limit stop 302. A push rod 306 is hinged to the outer wall of one side of the sector gear 305. A push plate 307 is fixedly connected to the rear end of the outer wall of the push rod 306, so that the rotation of the sector gear 305 can control the position change of the push plate 307 through the push rod 306, and then contact the detection buttons with multiple functions, so that the user can understand the working status of the locking mechanism 3.

[0047] Reference Figure 4 , 7 The upper fixing plate 401 is fixedly connected to the middle of the front end of the inner top of the train head shell 1, so that the drive mechanism 4 can be bolted to the train head shell 1. A connecting block 406 is fixedly connected to the outer wall of one side of the third arm 405. The output end of the electric push rod 404 is hinged to the connecting block 406, so that the electric push rod 404 can control the position of the third arm 405 through the connecting block 406.

[0048] Working principle: First, the electric push rod 404 is activated to push the third arm 405 forward. Under the guidance and pulling of the first arm 206 and the fixing part 209, the closed shell 5 moves on the guide rail 204 along with the guide wheel 2013. Since the third arm 405 is hinged to the closed shell 5 through the second hinge plate 407, the electric push rod 404 can smoothly control the closed shell 5 to retract inward. When the mechanism is not in use, the user can use a wrench to engage with the exposed rotating block 304, thereby controlling the sector gear 305 to rotate. Through gear meshing, the limit stop bar 302 is extended, restricting the position of the second positioning wheel 2015 and preventing the possibility of the closed shell 5 being opened accidentally.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A front-end opening and closing mechanism for a high-speed train, comprising a train head shell and a closed shell, characterized in that: The front end of the inner bottom surface of the train head shell is provided with an opening and closing mechanism. The opening and closing mechanism includes a bottom fixing plate. A lower fixing frame is fixedly connected to the middle of the upper surface of the bottom fixing plate. Two mounting plates are fixedly connected to the rear ends of the outer walls on both sides of the lower fixing frame. A guide rail is fixedly connected to the lower surface of the mounting plate. A connecting shaft is rotatably connected to both sides of the front end of the middle of the inner bottom surface of the lower fixing frame. A first arm is fixedly connected to the outer wall of the connecting shaft. A first hinge plate is hinged to the end of the first arm away from the connecting shaft. A fixing member is fixedly connected to the outer wall of one side of the first hinge plate. A second arm is fixedly connected to the outer wall of the fixing member away from the first hinge plate. A guide plate is rotatably connected to the rear end of the outer wall of one side of the second arm. Guide wheels are rotatably connected to all four sides of the upper surface of the guide plate. The opening and closing mechanism is provided with a locking mechanism. The locking mechanism includes a fixed shell. A limit stop is slidably connected to the inner wall of the fixed shell. A toothed groove is opened at the rear end of the middle part of the outer wall of the limit stop. A rotating block is rotatably connected to the rear end of the inner bottom surface of the fixed shell. A sector gear is fixedly connected to the upper surface of the rotating block. A drive mechanism is provided at the front end of the inner top surface of the train head shell. The drive mechanism includes an upper fixed plate. An upper fixed frame is fixedly connected to the middle of the lower surface of the upper fixed plate. A hinge seat is fixedly connected to the outer wall of the rear end of the upper fixed frame. Electric push rods are rotatably connected to both sides of the lower surface of the hinge seat. A third arm is rotatably connected to both sides of the front end of the lower surface of the upper fixed frame. A second hinge plate is hinged to the front end of the third arm.

2. The opening and closing mechanism for the front section of a high-speed train according to claim 1, characterized in that: The bottom fixing plate is fixedly connected to the middle of the front end of the inner bottom of the train head shell, and the guide wheel slides on the outer wall of the guide rail.

3. The high-speed train front section opening and closing mechanism according to claim 1, characterized in that: A first positioning wheel is rotatably connected to the front end of one side of the outer wall of the first arm, and a positioning plate is fixedly connected to the outer wall of the other side of the second arm, with a second positioning wheel rotatably connected to the lower surface of the positioning plate.

4. The opening and closing mechanism of the front section of a high-speed train according to claim 1, characterized in that: The outer wall of the front end of the fastener is fixedly connected to a first connector, and the end of the second hinge plate away from the third arm is fixedly connected to a second connector.

5. The opening and closing mechanism for the front section of a high-speed train according to claim 1, characterized in that: The fixed shells are respectively fixedly connected to both sides of the middle of the inner bottom surface of the lower fixed frame, and the tooth grooves mesh with the sector gears.

6. The opening and closing mechanism of the front section of a high-speed train according to claim 1, characterized in that: A push rod is hinged to one side of the outer wall of the sector gear, and a push plate is fixedly connected to the rear end of the outer wall of the push rod.

7. The opening and closing mechanism for the front section of a high-speed train according to claim 1, characterized in that: The upper fixing plate is fixedly connected to the middle of the front end of the inner top of the train head shell.

8. The opening and closing mechanism of the front section of a high-speed train according to claim 1, characterized in that: A connecting block is fixedly connected to the outer wall of one side of the third arm, and the output end of the electric push rod is hinged to the connecting block.

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