A front-end cabin door reset self-locking structure of a bullet train

Abstract

The present application relates to the technical field of the front end cabin door of a bullet train, solves the technical problem that the self-locking component needs an independent cylinder to operate, and particularly relates to a reset self-locking structure of a front end cabin door of a bullet train, which comprises a front cabin of a bullet train, the inside top end and the bottom end of the front cabin of the bullet train are symmetrically and fixedly connected with clamping support frames, and a cylinder fixing frame is fixedly connected between the two clamping support frames. Due to the arrangement of the self-locking and closing assembly, automatic limiting and self-locking can be realized after the two turnover cabin doors are closed, so that the turnover cabin doors are prevented from being opened due to wind resistance during the operation of the bullet train, and the self-locking and closing assembly can be linked with the turnover storage assembly during the operation of the turnover storage assembly, power is provided for the self-locking and closing assembly when the turnover storage assembly drives the turnover cabin door to open, so that the self-locking and closing assembly can be separated from the self-locking, and the self-locking and closing assembly that has realized self-locking is subjected to secondary limiting when the turnover storage assembly drives the turnover cabin door to close, so that the limiting is more stable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of the front-end cabin door of a motor train unit, and particularly relates to a front-end cabin door reset self-locking structure of a motor train unit. BACKGROUND

[0002] In order to effectively reduce air resistance in high-speed operation of a power concentration type locomotive, a streamlined fairing is used at the front end of a head car, and in order to ensure coupling connection, the streamlined fairing is designed as two movable cabin doors, and a front-end opening and closing mechanism is specially designed for controlling opening and closing of the cabin doors. When the motor train unit is operated in a single line, the cabin doors are closed to form a complete train aerodynamic shape, reduce wind resistance and wind noise, and protect the front-end coupler and other mechanisms. When two trains are coupled for operation or maintenance traction, the opening and closing mechanism opens the left and right cabin doors to expose the coupler for easy coupling. The existing front-end cabin door of the motor train unit needs a special cylinder to drive a self-locking limiting part to limit the two closed front-end cabin doors after reset and closure. The separate cylinder needs a separate control system for control. The increase of too many control systems and power components increases the maintenance inspection time before the motor train is started, thereby delaying the departure time of the motor train. The investment of too many cylinders also increases the production cost. SUMMARY

[0003] In view of the defects in the prior art, the present application provides a front-end cabin door reset self-locking structure of a motor train unit, which solves the technical problem that the self-locking part needs an independent cylinder to operate and achieves the purpose of improving the total departure frequency.

[0004] To solve the above technical problems, the present application provides the following technical scheme: a front-end cabin door reset self-locking structure of a motor train unit, comprising a motor train front cabin, the inside top end and the bottom end of the motor train front cabin are symmetrically fixedly connected with clamping support frames, a cylinder fixing frame is fixedly connected between the two clamping support frames, the clamping support frames and the cylinder fixing frame serve as a support base, a power cylinder is installed on the inside of the cylinder fixing frame, a turnover window is formed in the middle of the air inlet surface of the motor train front cabin, two turnover cabin doors are arranged on the inside of the turnover window, a turnover storage assembly for turning and storing the turnover cabin doors is arranged between the two clamping support frames, and a self-locking and closing assembly for self-locking the two turnover cabin doors is connected to the inside of the two turnover cabin doors.

[0005] The self-locking closing assembly comprises reset support seats fixedly connected to the inner sides of the two flip cabin doors, limit support seats fixedly connected to the ends of the reset support seats away from the flip cabin doors, receiving sliding grooves formed in the opposite ends of the two limit support seats, extension supports fixedly connected to the opposite ends of the two limit support seats, a flip groove formed in the middle of the top end of the extension support, a docking disc rotatably connected to the inside of the flip groove, a release rod fixedly connected to the arc surface of the docking disc, a docking clamping groove formed in the middle of the extension end of the power cylinder close to the docking disc, a self-locking reset spring connected between the release rod and the inside of the reset support seat, and a rotating groove formed in the connection part of the release rod and the flip groove.

[0006] Preferably, the two reset support seats are circumferentially symmetrical, and the extension support of one reset support seat is slidingly connected inside the receiving sliding groove formed in the other reset support seat.

[0007] Preferably, the flip receiving assembly comprises a connecting seat arranged between the two clamping support frames, eccentric shaft discs rotatably connected to the two sides of the connecting seat, connecting rocker arms fixedly connected to the upper and lower sides of the eccentric shaft discs, guide sliding grooves formed in the two sides of the top end and the bottom end of the connecting seat, docking sliding rods fixedly connected to the end portions of the connecting rocker arms, the docking sliding rods being slidingly connected with the guide sliding grooves close thereto, a push-pull sliding rod slidingly connected to the middle of the connecting seat, a parallel seat fixedly connected to the end portion of the push-pull sliding rod, side flip grooves formed in the two sides of the parallel seat, arc-shaped rods rotatably connected to the inside of the side flip grooves, and a reset spring connected between the parallel seat and the connecting seat.

[0008] Preferably, docking cantilevers are fixedly connected to the upper and lower sides of the inside of the two flip cabin doors, and the docking cantilevers are connected with the connecting rocker arms close thereto.

[0009] Preferably, the two arc-shaped rods are rotatably connected to the disc top end of the eccentric shaft disc close thereto at the end away from the parallel seat.

[0010] Preferably, docking sliding grooves are formed in the middle of the opposite ends of the two clamping support frames, docking sliding blocks are fixedly connected to the top end and the bottom end of the connecting seat, and the docking sliding blocks are slidingly connected inside the docking sliding grooves close thereto.

[0011] Preferably, lifting hook rods are circumferentially and symmetrically connected to the top end and the bottom end of the parallel seat, and the end portions of the lifting hook rods are fitted with the release rods close thereto.

[0012] Preferably, a front plate is fixedly connected to the end of the parallel seat away from the power cylinder, a limit clamping rod is fixedly connected to the middle of the end of the front plate away from the power cylinder, and the limit clamping rod is embedded in the docking clamping groove.

[0013] Preferably, the signal input end of the power cylinder is connected with the signal output end of an external control terminal, and the extension end of the power cylinder is connected with the end of the push-pull slide rod.

[0014] Preferably, the joint between the lifting hook rod and the release rod is in an arc shape, and the two ends of the lifting hook rod away from the power cylinder both extend into the interior of the reset support seat.

[0015] By means of the above technical solution, the application provides a front-end cabin door reset self-locking structure of a motor car, which has at least the following beneficial effects:

[0016] 1. Due to the arrangement of the self-locking and closing assembly, automatic limiting and self-locking can be realized after the two flip cabin doors are closed, so that the flip cabin doors are prevented from being opened due to wind resistance during the operation of the motor car, and the self-locking and closing assembly can be linked with the flip storage assembly during the operation of the flip storage assembly, so that power is provided for the self-locking and closing assembly when the flip storage assembly drives the flip cabin doors to open, so that the self-locking and closing assembly can be disengaged from self-locking, and secondary limiting is applied to the self-locking and closing assembly that has been self-locked when the flip storage assembly drives the flip cabin doors to close, so that the limiting is more stable.

[0017] 2. Due to the arrangement of the flip storage assembly, the opening and closing of the flip cabin doors can be realized through the intervention of a single cylinder, so that the inspection and maintenance time before the operation of the motor car can be saved, the production cost can be reduced by using less power equipment, and the flip storage assembly can be linked with the self-locking and closing assembly for operation without affecting the normal operation and use of the front cabin of the motor car.

[0018] 3. Due to the arrangement of the lifting hook rod, the release rod in the self-locking and closing assembly can be retracted when the flip storage assembly is driving the cabin door to flip, so that the limiting part in the self-locking and closing assembly is rotated to release the limiting, so that the limiting part is opened before the cabin door is opened, and the opening of the cabin door is not affected. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation on the present application.

[0020] In the drawings:

[0021] Figure 1 is a schematic diagram of the three-dimensional structure of the present application;

[0022] Figure 2 is a schematic diagram of the clamping support frame mounting structure of the present application;

[0023] Figure 3 is a schematic diagram of the butt joint cantilever mounting structure of the present application;

[0024] Figure 4 Figure is the schematic diagram of the arc-shaped rod mounting structure of the present application;

[0025] Figure 5 Figure is the schematic diagram of the reset support seat mounting structure of the present application;

[0026] Figure 6 Figure is the schematic diagram of the lifting hook rod mounting structure of the present application;

[0027] Figure 7 Figure is the schematic diagram of the limiting clamping rod mounting structure of the present application;

[0028] Figure 8 Figure is the schematic diagram of the storage sliding groove opening structure of the present application;

[0029] Figure 9 Figure is the schematic diagram of the butt joint clamping groove opening structure of the present application;

[0030] Figure 10 Figure is the schematic diagram of the turnover groove opening structure of the present application.

[0031] In the figure: 1, motor car front cabin; 2, turnover window; 3, turnover cabin door; 4, clamping support frame; 5, air cylinder fixing frame; 6, power air cylinder; 7, butt joint cantilever;

[0032] 8, turnover storage assembly; 81, connection seat; 82, eccentric shaft disc; 83, connection rocker arm; 84, guide sliding groove; 85, butt joint sliding rod; 86, push-pull sliding rod; 87, parallel seat; 88, side turnover groove; 89, arc-shaped rod; 810, reset spring;

[0033] 9, self-locking closing assembly; 91, reset support seat; 92, limiting support seat; 93, storage sliding groove; 94, extension support; 95, turnover groove; 96, butt joint disc; 97, release rod; 98, butt joint clamping groove; 99, self-locking reset spring; 910, rotating groove;

[0034] 10, butt joint sliding groove; 11, butt joint sliding block; 12, lifting hook rod; 13, front plate; 14, limiting clamping rod. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be described clearly and completely below with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0036] Embodiment 1

[0037] The existing high-speed rail front end door needs a special cylinder to drive the self-locking limiting part to limit the two closed front end doors after resetting and closing. The separate cylinder needs a separate control system for control. The increase of excessive control systems and power components will increase the maintenance inspection time before the high-speed rail starts, thereby delaying the departure time of the high-speed rail. And the investment of excessive cylinders also increases the production cost. Figures 1-10 The high-speed rail front end door resetting self-locking structure provided by the embodiment solves the technical problem that the self-locking part needs to be operated by an independent cylinder. The device comprises a high-speed rail front cabin 1, the inside top end and the inside bottom end of the high-speed rail front cabin 1 are fixedly connected with clamping support frames 4, the two clamping support frames 4 are fixedly connected with a cylinder fixing frame 5, the clamping support frames 4 and the cylinder fixing frame 5 serve as a support base, a power cylinder 6 is installed inside the cylinder fixing frame 5, a turnover window 2 is formed in the middle of the air inlet surface of the high-speed rail front cabin 1, two turnover doors 3 are arranged inside the turnover window 2, a turnover storage assembly 8 for turning and storing the turnover doors 3 is arranged between the two clamping support frames 4, and the inside of the two turnover doors 3 is connected with a self-locking closing assembly 9 for self-locking the two turnover doors 3. The turnover storage assembly 8 drives the turnover doors 3 to turn to realize the opening or closing of the doors. The self-locking closing assembly 9 can realize self-limiting during the closing of the turnover doors 3, thereby preventing the turnover doors 3 from being opened.

[0038] The existing turnover door 3 needs a special cylinder to drive the self-locking closing assembly 9 during self-locking. This not only increases the inspection time before the high-speed rail starts, but also increases the probability of failure of the high-speed rail front cabin. In order to solve such problems, the self-locking closing assembly 9 is proposed. The self-locking closing assembly 9 comprises reset support seats 91 fixedly connected to the inside of the two turnover doors 3, limit support seats 92 fixedly connected to one end of the reset support seats 91 away from the turnover doors 3, storage sliding grooves 93 formed in the opposite ends of the two limit support seats 92, extension supports 94 fixedly connected to the opposite ends of the two limit support seats 92, turnover grooves 95 formed in the middle of the top ends of the extension supports 94, abutting discs 96 rotatably connected to the inside of the turnover grooves 95, release rods 97 fixedly connected to the arc surfaces of the abutting discs 96, abutting clamping grooves 98 formed in the middle of the extension ends of the abutting discs 96 close to the power cylinder 6, self-locking reset springs 99 connected between the release rods 97 and the inside of the reset support seats 91, and rotating grooves 910 formed in the connection between the release rods 97 and the turnover grooves 95.

[0039] In order to enable the self-locking closing assemblies 9 on the two turnover doors 3 to be embedded in each other during self-locking, the two reset support seats 91 are circumferentially symmetrical, and the extension support 94 of one reset support seat 91 is slidingly connected in the storage sliding groove 93 formed in the other reset support seat 91.

[0040] During the closing process of the two flip doors 3, the extension brackets 94, which are fixedly connected at the ends of the two circumferentially symmetrical reset bracket seats 91, will slide into the storage grooves 93 opened on their inner sides. During this process, the docking discs 96, which are rotatably connected to the inner sides of the flip grooves 95 opened at the opposite ends of the two extension brackets 94, will come into contact and rotate as the insertion continues. After the two flip grooves 95 are fully engaged, the two flip grooves 95 will be circular, and the two docking discs 96 will rotate against each other. After the two flip grooves 95 are fully engaged, the self-locking reset spring 99 connected to the release rod 97 will pull the release rod 97 connected to it to reset, so that the two docking discs 96 rotate inside the two fully engaged flip grooves 95 and cannot leave the flip grooves 95, thereby achieving the limit.

[0041] Example 2

[0042] Based on Example 1, Example 1 solved the technical problem that the self-locking component required an independent cylinder to operate. However, it still had the problem that errors could occur when two cylinders drove the hatch to close, resulting in incomplete closure. Combined with... Figures 1-10 As shown, the specific implementation process is as follows: The existing flip-up hatch 3 requires two cylinders to control both opening and closing. Since the flip angles of the two hatches must be the same, the cylinders also need to be corrected to prevent the hatches from closing improperly after the cylinders have been used for a long time. In addition, too much investment in mechanical equipment will increase production costs. In order to solve this problem, the flip-up storage component 8 is proposed. The flip-out storage assembly 8 includes a connecting seat 81 disposed between two clamping support frames 4. Eccentric shaft discs 82 are rotatably connected to both sides of the connecting seat 81. Connecting rocker arms 83 are fixedly connected above and below the eccentric shaft discs 82. Guide grooves 84 are provided through the top and bottom sides of the connecting seat 81. A docking slide rod 85 is fixedly connected to the end of each connecting rocker arm 83. The docking slide rod 85 is slidably connected to the adjacent guide groove 84. A push-pull slide rod 86 is slidably connected in the middle of the connecting seat 81. The signal input end of the power cylinder 6 is connected to the signal output end of an external control terminal. The extension end of the power cylinder 6 is connected to the end of the push-pull slide rod 86. A parallel... The connecting seat 87 and the parallel seat 87 are provided with side-tilting grooves 88 on both sides. An arc-shaped rod 89 is rotatably connected to the inside of the side-tilting groove 88. A return spring 810 is connected between the parallel seat 87 and the connecting seat 81. The two tilting hatches 3 are fixedly connected to the upper and lower sides of the inner side with docking cantilever arms 7. Several docking cantilever arms 7 are connected to the adjacent connecting rocker arms 83. The ends of the two arc-shaped rods 89 away from the parallel seat 87 are rotatably connected to the top of the disc of the adjacent eccentric shaft disk 82. The two clamping support frames 4 are provided with docking slide grooves 10 in the middle of opposite ends. The top and bottom ends of the connecting seat 81 are fixedly connected with docking sliders 11. The docking sliders 11 are slidably connected inside the adjacent docking slide grooves 10.

[0043] Self-locking closure assembly 9 needs external force intervention to reset after closing during use before it can be separated. The top and bottom of parallel seat 87 is connected with lifting hook rod 12, the end of lifting hook rod 12 is close to release rod 97, the joint of lifting hook rod 12 and release rod 97 is arc, and the two ends of lifting hook rod 12 extend to the inside of reset support seat 91.

[0044] In order to improve the limiting force of self-locking closure assembly 9, and make the flip storage assembly 8 and self-locking closure assembly 9 linkage operation. The end of parallel seat 87 away from power cylinder 6 is fixedly connected with front plate 13, the middle of the end of front plate 13 away from power cylinder 6 is fixedly connected with limiting card rod 14, limiting card rod 14 is embedded with butt joint slot 98.

[0045] During the opening of the two flip doors 3, the power cylinder 6 will pull the push-pull slide rod 86 connected with it to slide, during which the parallel seat 87 connected with the push-pull slide rod 86 will also move together, and the arc-shaped rod 89 rotatingly connected on both sides of the parallel seat 87 will also move, and will drive the eccentric shaft disc 82 rotatingly connected at the end of the arc-shaped rod 89 to rotate, and the eccentric shaft disc 82 will drive the link rocker arm 83 fixedly connected above and below it to rotate, and the link rocker arm 83 will drive the butt joint cantilever 7 connected with it to rotate, and the butt joint cantilever 7 will drive the flip door 3 connected with it to rotate, so that the two flip doors 3 are flipped towards the inside of the motor car front cabin 1, during which the two lifting hook rods 12 fixedly connected on the top and bottom of the parallel seat 87 will hook the release rod 97 close to it to flip, and the release rod 97 will drive the butt joint disc 96 connected with it to rotate, until the two butt joint discs 96 rotate to the horizontal state, and the two butt joint discs 96 will lose the limiting action relative to the flip groove 95, and will be separated as the flip storage assembly 8 continues to operate, before that, the limiting card rod 14 fixedly connected at the end of the front plate 13 will first separate from the inside of the butt joint slot 98, and during the rotation of the link rocker arm 83, the butt joint slide rod 85 connected with it will slide in the guide slide groove 84 opened on the top and bottom of the link seat 81, so that the rotation can be limited and at the same time the rotation can be more stable, and as the power cylinder 6 continues to pull, the link seat 81 will slide between the two symmetrical clamping support frames 4 towards the deep part of the motor car front cabin 1.

[0046] It should be noted that in this text, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment.

[0047] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be made without departing from the spirit and scope of the present application, which is defined by the following claims and their equivalents.

Claims

1. A bullet train front cabin door reset self-locking structure, comprising a bullet train front cabin (1), the inside top end and the bottom end of the bullet train front cabin (1) are symmetrically fixedly connected with clamping support frames (4), and a gas cylinder fixed frame (5) is fixedly connected between the two clamping support frames (4); the clamping support frames (4) and the gas cylinder fixed frame (5) serve as a support base, characterized in that: The power cylinder (6) is arranged in the cylinder fixing frame (5), the turning window (2) is arranged in the middle of the air inlet surface of the motor vehicle front cabin (1), the two turning cabin doors (3) are arranged in the turning window (2), the turning storage assembly (8) for turning and storing the turning cabin doors (3) is arranged between the two clamping support frames (4), the self-locking and closing assembly (9) for self-locking the two turning cabin doors (3) is arranged in the inside of the two turning cabin doors (3). ​ The self-locking and closing assembly (9) comprises the reset support seats (91) which are fixedly connected to the inside of the two turning cabin doors (3) and are symmetrical, the limit support seats (92) are fixedly connected to the one end of the reset support seats (91) away from the turning cabin doors (3), the receiving sliding grooves (93) are arranged in the opposite ends of the two limit support seats (92), the extension supports (94) are fixedly connected to the opposite ends of the two limit support seats (92), the turning grooves (95) are arranged in the middle of the top ends of the extension supports (94), the butt joint discs (96) are rotatably connected to the inside of the turning grooves (95), the release rods (97) are fixedly connected to the arc surfaces of the butt joint discs (96), the butt joint clamping grooves (98) are arranged in the middle of the extension ends of the butt joint discs (96) close to the power cylinder (6), the self-locking and resetting springs (99) are connected between the release rods (97) and the inside of the reset support seats (91), and the rotating grooves (910) are arranged in the connection parts of the release rods (97) and the turning grooves (95). The turning storage assembly (8) comprises the connection seats (81) which are arranged between the two clamping support frames (4), the eccentric shaft discs (82) are rotatably connected to the two sides of the connection seats (81), the connection rocker arms (83) are fixedly connected to the upper and lower parts of the eccentric shaft discs (82), the guide sliding grooves (84) are arranged in the two sides of the top end and the bottom end of the connection seats (81), the butt joint sliding rods (85) are fixedly connected to the end parts of the connection rocker arms (83), the butt joint sliding rods (85) are slidably connected with the adjacent guide sliding grooves (84), the push-pull sliding rod (86) is slidably connected to the middle of the connection seat (81), the parallel seats (87) are fixedly connected to the end part of the push-pull sliding rod (86), the side turning grooves (88) are arranged in the two sides of the parallel seats (87), the arc-shaped rods (89) are rotatably connected to the inside of the side turning grooves (88), and the resetting springs (810) are connected between the parallel seats (87) and the connection seats (81). The lifting hook rods (12) are circumferentially and symmetrically connected to the top end and the bottom end of the parallel seats (87), and the end part of the lifting hook rod (12) is matched with the release rod (97) close to the release rod (97). The front plates (13) are fixedly connected to the one end of the parallel seats (87) away from the power cylinder (6), the limit clamping rods (14) are fixedly connected to the middle of the one end of the front plates (13) away from the power cylinder (6), and the limit clamping rods (14) are embedded in the butt joint clamping grooves (98).

2. The front-end cabin door reset self-locking structure of a motor vehicle according to claim 1, characterized in that: Two reset support seats (91) are circumferentially symmetrical, and the extension support (94) of one reset support seat (91) is slidingly connected inside the receiving sliding groove (93) of the other reset support seat (91).

3. The front-end cabin door reset self-locking structure of a motor vehicle according to claim 1, characterized in that: The upper and lower inner sides of the two turnover cabin doors (3) are fixedly connected with butt joint cantilevers (7), and the butt joint cantilevers (7) are connected with adjacent connection rocker arms (83).

4. The front-end cabin door reset self-locking structure of a motor vehicle according to claim 1, characterized in that: The two arc-shaped rods (89) are rotatably connected with the top end of the disc of the adjacent eccentric shaft disc (82) at one end away from the parallel seat (87).

5. The self-locking structure of a front-end cabin door of a bullet train according to claim 1, characterized in that: The intermediate portions of the opposite ends of the two clamping support frames (4) are provided with butt joint sliding grooves (10), the top end and the bottom end of the connection seat (81) are fixedly connected with butt joint sliding blocks (11), and the butt joint sliding blocks (11) are slidingly connected inside the adjacent butt joint sliding grooves (10).

6. The front-end cabin door reset self-locking structure of a motor vehicle according to claim 1, characterized in that: The signal input end of the power cylinder (6) is connected with the signal output end of an external control terminal, and the extension end of the power cylinder (6) is connected with the end of the push-pull sliding rod (86).

7. The front-end cabin door reset self-locking structure of a motor vehicle according to claim 1, characterized in that: The abutting portions of the lifting hook rods (12) and the release rods (97) are in arc shape, and the two lifting hook rods (12) extend into the reset support seat (91) at one end away from the power cylinder (6).

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