Reset self-locking structure of front-end cabin door of bullet train

Abstract

The invention relates to the technical field of bullet train front-end cabin doors, solves the technical problem that a self-locking component needs an independent air cylinder to operate, and particularly relates to a bullet train front-end cabin door reset self-locking structure which comprises a bullet train forecabin, and the top end and the bottom end of the inner side of the bullet train forecabin are symmetrically and fixedly connected with clamping supporting frames. An air cylinder fixing frame is fixedly connected between the two clamping supporting frames. Due to the arrangement of the self-locking closing assembly, automatic limiting and self-locking can be achieved after the two turnover cabin doors are closed, so that the turnover cabin doors are prevented from being opened due to wind resistance in the running process of the bullet train, and the turnover cabin doors can be in linkage with the turnover storage assembly in the running process of the turnover storage assembly; when the overturning storage assembly drives the overturning cabin door to be opened, power is provided for the self-locking closing assembly so that the self-locking closing assembly can be disengaged from self-locking, and when the overturning storage assembly drives the overturning cabin door to be closed, secondary limiting is applied to the self-locking closing assembly which achieves self-locking so that limiting can be more stable.

Description

Technical Field

[0001] The invention relates to the technical field of a front end cabin door of a motor vehicle, and in particular to a reset self-locking structure of the front end cabin door of a motor vehicle. Background Art

[0002] In order to effectively reduce air resistance during high-speed operation, the front end of the power-concentrated locomotive adopts a streamlined deflector. At the same time, in order to ensure the coupling, the streamlined deflector is designed as two movable doors, and a front opening and closing mechanism is specially designed to control the opening and closing of the doors. When the EMU is running alone, the doors are closed to form a complete aerodynamic shape of the train, reduce wind resistance and wind noise, and protect the front end coupler and other mechanisms; when the two trains are running or overhauled, the opening and closing mechanism opens the left and right doors to expose the coupler for easy coupling. After the existing front door of the EMU is reset and closed, a special cylinder is required to drive the self-locking limit component to limit the two closed front doors, and the separate cylinder requires a separate control system to control it. The addition of too many control systems and power components will increase the maintenance and inspection time before the EMU starts, thereby delaying the departure time of the EMU, and too many cylinders will also increase the production cost. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a self-locking structure for resetting the front hatch door of a motor vehicle, which solves the technical problem that the self-locking component requires an independent cylinder to operate, thereby achieving the purpose of increasing the overall number of departures.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a self-locking structure for resetting the front hatch door of a motor vehicle, comprising a front cabin of the motor vehicle, wherein the top and bottom ends of the inner side of the front cabin of the motor vehicle are symmetrically fixedly connected with clamping support frames, a cylinder fixing frame is fixedly connected between the two clamping support frames, the clamping support frame and the cylinder fixing frame serve as a supporting basis, a power cylinder is installed on the inner side of the cylinder fixing frame, a flip window is opened in the middle of the air induction surface of the front cabin of the motor vehicle, two flip cabin doors are arranged on the inner side of the flip window, a flip storage assembly for flipping and storing the flip cabin doors is arranged between the two clamping support frames, and a self-locking closing assembly for self-locking the two flip cabin doors is arranged and connected on the inner side of the two flip cabin doors;

[0005] The self-locking closing component includes a reset bracket seat fixedly connected to the inner sides of the two flip doors and symmetrically arranged thereon, the reset bracket seat being fixedly connected to a limiting bracket seat at one end away from the flip door, a storage slide groove being provided at the opposite ends of the two limiting bracket seats, an extension bracket being fixedly connected to the opposite ends of the two limiting bracket seats, a flip groove being provided at the middle of the top end of the extension bracket, a docking disc being rotatably connected to the inner side of the flip groove, a release rod being fixedly connected to the arc surface of the docking disc, a docking slot being provided in the middle of the extended end of the docking disc close to the power cylinder, a self-locking reset spring being connected between the release rod and the inner side of the reset bracket seat, and a rotation groove being provided at the connection between the release rod and the flip groove.

[0006] Preferably, the two reset bracket seats are circumferentially symmetrical, and the extension bracket of one reset bracket seat is slidably connected to the inside of a receiving slide groove opened on the other reset bracket seat.

[0007] Preferably, the flip storage assembly includes a connecting seat arranged between two clamping support frames, both sides of the connecting seat are rotatably connected with eccentric shaft disks, the top and bottom of the eccentric shaft disk are fixedly connected with connecting rocker arms, the top and bottom of the connecting seat are penetrated by guide slide grooves, the ends of the connecting rocker arms are fixedly connected with docking slide rods, and the docking slide rods are slidably connected to the adjacent guide slide grooves, the middle of the connecting seat is slidably connected with a push-pull slide rod, the ends of the push-pull slide rod are fixedly connected with a parallel seat, side flipping grooves are opened on both sides of the parallel seat, the inner side of the side flipping groove is rotatably connected with an arc rod, and a return spring is connected between the parallel seat and the connecting seat.

[0008] Preferably, docking cantilevers are fixedly connected to the upper and lower inner sides of the two flip doors, and several of the docking cantilevers are connected to adjacent connecting rocker arms.

[0009] Preferably, one end of the two arc-shaped rods away from the parallel seat is rotatably connected to the top of the disc of the adjacent eccentric shaft disc.

[0010] Preferably, a docking groove is provided in the middle of the opposite ends of the two clamping support frames, and a docking slider is fixedly connected to the top and bottom ends of the connecting seat, and the docking sliders are slidably connected inside the adjacent docking grooves.

[0011] Preferably, the top and bottom ends of the parallel seat are circumferentially symmetrically connected with lifting hook rods, and the ends of the lifting hook rods are fitted with adjacent release rods.

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

[0013] Preferably, the signal input end of the power cylinder is connected to the signal output end of the external control terminal, and the extension end of the power cylinder is connected to 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 ends of the two lifting hook rods away from the power cylinder both extend to the inside of the reset bracket seat.

[0015] By means of the above technical solution, the present invention provides a self-locking structure for resetting the front door of a motor vehicle, which has at least the following beneficial effects:

[0016] 1. Due to the arrangement of the self-locking closing assembly, the present invention can realize automatic limit self-locking after the two flip doors are closed, thereby preventing the flip doors from opening due to wind resistance during the operation of the motor vehicle, and can be linked with the flip storage assembly during its operation. When the flip storage assembly drives the flip door to open, power is provided to the self-locking closing assembly so that it can be freed from self-locking. When the flip storage assembly drives the flip door to close, a secondary limit is applied to the self-locking closing assembly that has already achieved self-locking, so that the limit is more stable.

[0017] 2. Due to the provision of the flip storage assembly, the present invention can realize the opening and closing of the flip door through the intervention of a single cylinder, which can save the inspection and maintenance time before the operation of the EMU, and less investment in power equipment can also reduce the investment in production costs. It can also operate in conjunction with the self-locking closing assembly without affecting the normal operation of the front cabin of the EMU.

[0018] 3. Due to the setting of the lifting hook rod, the present invention can make the flip storage assembly drive the release rod in the self-locking closing assembly to contract during the flipping of the cabin door, so that the limiting component in the self-locking closing assembly can rotate, thereby releasing the limit, so that the limiting component can be opened first before the cabin door is opened, without affecting the opening of the cabin door. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide further understanding of the present application and constitute 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 improper limitations on the present application.

[0020] In the attached picture:

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

[0022] Figure 2 It is a schematic diagram of the installation structure of the clamping support frame of the present invention;

[0023] Figure 3 It is a schematic diagram of the installation structure of the docking cantilever of the present invention;

[0024] Figure 4 It is a schematic diagram of the arc rod installation structure of the present invention;

[0025] Figure 5 It is a schematic diagram of the installation structure of the reset bracket seat of the present invention;

[0026] Figure 6 It is a schematic diagram of the installation structure of the lifting hook rod of the present invention;

[0027] Figure 7 It is a schematic diagram of the installation structure of the limit clamp rod of the present invention;

[0028] Figure 8 A schematic diagram of the structure of the storage chute of the present invention;

[0029] Fig. 9 A schematic diagram of the structure of the docking slot of the present invention;

[0030] Fig.10 The invention discloses a structural schematic diagram of the turning groove.

[0031] In the figure: 1. front cabin of the train; 2. flip window; 3. flip door; 4. clamping support frame; 5. cylinder fixing frame; 6. power cylinder; 7. docking cantilever;

[0032] 8. Flip storage assembly; 81. Connecting seat; 82. Eccentric shaft disc; 83. Connecting rocker arm; 84. Guide slide groove; 85. Docking slide rod; 86. Push-pull slide rod; 87. Parallel seat; 88. Side flip groove; 89. Arc rod; 810. Return spring;

[0033] 9. Self-locking closing assembly; 91. Reset bracket seat; 92. Limit bracket seat; 93. Storage slide; 94. Extension bracket; 95. Flip slot; 96. Docking disc; 97. Release rod; 98. Docking slot; 99. Self-locking reset spring; 910. Rotation slot;

[0034] 10. Docking slide; 11. Docking slider; 12. Lifting hook rod; 13. Front plate; 14. Limiting lever. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example 1

[0037] The existing front doors of the EMUs need a special cylinder to drive the self-locking limiter to limit the two closed front doors after they are reset and closed. A separate cylinder requires a separate control system to control it. Too many control systems and power components will increase the maintenance and inspection time before the EMU starts, thereby delaying the departure time of the EMU. In addition, too many cylinders will increase the production cost. Please refer to Figure 1-Figure 10 , a self-locking structure for resetting the front door of a motor vehicle is provided for this embodiment, which solves the technical problem that the self-locking component needs to be operated by an independent cylinder. The device includes a front cabin 1 of a motor vehicle, and a clamping support frame 4 is symmetrically fixedly connected to the top and bottom of the inner side of the front cabin 1 of the motor vehicle, and a cylinder fixing frame 5 is fixedly connected between the two clamping support frames 4. The clamping support frame 4 and the cylinder fixing frame 5 serve as a supporting base, and a power cylinder 6 is installed inside the cylinder fixing frame 5. A flip window 2 is opened in the middle of the wind induction surface of the front cabin 1 of the motor vehicle, and two flip doors 3 are arranged inside the flip window 2. A flip storage assembly 8 for flipping and storing the flip doors 3 is arranged between the two clamping support frames 4, and a self-locking closing assembly 9 for self-locking the two flip doors 3 is arranged inside. The flip storage assembly 8 drives the flip door 3 to flip to realize the opening or closing of the door, and the self-locking closing assembly 9 can realize self-limiting during the closing of the flip door 3, thereby preventing the flip door 3 from opening.

[0038] The existing flip door 3 needs a special cylinder to drive it when self-locking, which not only increases the inspection time before the start of the motor vehicle, but also increases the probability of failure of the front cabin of the motor vehicle if too many control systems control the motor equipment. In order to solve such problems, a self-locking closing component 9 is specially proposed. The self-locking closing component 9 includes a reset bracket seat 91 fixedly connected to the inner side of the two flip doors 3 and symmetrically connected. The reset bracket seat 91 is fixedly connected to a limited bracket seat 92 at one end away from the flip door 3. The two limited bracket seats 92 have storage slide grooves 93 at the opposite ends. The two limited bracket seats 92 have extension brackets 94 fixedly connected to the opposite ends. A flip groove 95 is opened in the middle of the top of the extension bracket 94. A docking disc 96 is rotatably connected to the inner side of the flip groove 95. A release rod 97 is fixedly connected to the arc surface of the docking disc 96. A docking slot 98 is opened in the middle of the extended end of the docking disc 96 close to the power cylinder 6. A self-locking reset spring 99 is connected between the release rod 97 and the inner side of the reset bracket seat 91. A rotating slot 910 is opened at the connection between the release rod 97 and the flip groove 95.

[0039] In order to enable the self-locking closure components 9 on the two flip doors 3 to be locked inside each other during the closing of the self-locking closure components 9, the two reset bracket seats 91 are circumferentially symmetrical, and the extension bracket 94 of one reset bracket seat 91 is slidably connected to the storage slot 93 opened on the other reset bracket seat 91.

[0040] During the closing process of the two flip doors 3, the extension brackets 94 fixedly connected at the ends of the two circularly symmetrical reset bracket seats 91 will slide and embed into the storage slide grooves 93 opened on the inner sides of each other. During this period, the docking discs 96 rotatably connected to the inner sides of the flip grooves 95 opened at the opposite ends of the two extension brackets 94 will contact and fit, and rotate as the embedding continues. After the two flip grooves 95 are fully fitted, 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 fitted, 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 fitted flip grooves 95 and cannot escape from the flip grooves 95, thereby achieving limiting.

[0041] Example 2

[0042] On the basis of Example 1, Example 1 solves the technical problem that the self-locking component needs to be operated by an independent cylinder, but there is still a problem that when the two cylinders drive the hatch door to close, there will be errors causing the closing to be imprecise. Figure 1-Figure 10 As shown, the specific implementation process is as follows: the existing flip door 3 requires two cylinders to control when opening or closing. Since the flip angles of the two doors must be the same, the cylinders must also be corrected to prevent the doors from being closed loosely after the cylinders have been used for a long time. In addition, excessive investment in motorized equipment will also increase production costs. In order to solve such problems, a flip storage component 8 is specially proposed. The flip storage assembly 8 includes a connecting seat 81 arranged between two clamping support frames 4, and the connecting seat 81 has eccentric shaft disks 82 rotatably connected on both sides, and the eccentric shaft disks 82 are fixedly connected to connecting rocker arms 83 above and below. Guide slide grooves 84 are penetrated on both sides of the top and bottom ends of the connecting seat 81, and the ends of the connecting rocker arms 83 are fixedly connected to docking slide bars 85, and the docking slide bars 85 are slidably connected to the adjacent guide slide grooves 84. A push-pull slide bar 86 is slidably connected in the middle of the connecting seat 81, and the signal input end of the power cylinder 6 is connected to the signal output end of the external control terminal, and the extension end of the power cylinder 6 is connected to the end of the push-pull slide bar 86, and the end of the push-pull slide bar 86 is fixedly connected and The connecting seat 87 has side flip grooves 88 on both sides of the parallel seat 87, and an arc rod 89 is rotatably connected to the inner side of the side flip groove 88. A return spring 810 is connected between the parallel seat 87 and the connecting seat 81. The two flip doors 3 are fixedly connected to the upper and lower inner sides of the docking cantilevers 7, and several docking cantilevers 7 are connected to the adjacent connecting rocker arms 83. The two arc rods 89 are rotatably connected to the top of the disc of the adjacent eccentric shaft disk 82 at one end away from the parallel seat 87. A docking slide groove 10 is provided in the middle of the opposite ends of the two clamping support frames 4. The top and bottom ends of the connecting seat 81 are fixedly connected to the docking slider 11, and the docking slider 11 is slidably connected inside the adjacent docking slide groove 10.

[0043] The self-locking closing assembly 9 needs external force to reset after closing in the process of use before it can be separated. The top and bottom ends of the parallel seat 87 are symmetrically connected with lifting hook rods 12, and the ends of the lifting hook rods 12 are in contact with the release rods 97, and the contact between the lifting hook rods 12 and the release rods 97 is in an arc shape, and the ends of the two lifting hook rods 12 away from the power cylinder 6 extend to the inside of the reset bracket seat 91.

[0044] In order to increase the limiting force of the self-locking closing component 9 and make the flip storage component 8 work in conjunction with the self-locking closing component 9, the parallel seat 87 is fixedly connected to the front plate 13 at one end away from the power cylinder 6, and the front plate 13 is fixedly connected to the middle of the end away from the power cylinder 6 with a limiting clamping rod 14, which is engaged with the docking clamping groove 98.

[0045] During the opening of the two flip doors 3, the power cylinder 6 will pull the push-pull slide bar 86 connected to it to slide, and the parallel seat 87 connected to the push-pull slide bar 86 will also move together, and the arc rod 89 rotatably connected on both sides of the parallel seat 87 will also move, and use the parallel seat 87 as a support to drive the eccentric shaft disk 82 rotatably connected at its end to rotate, and the eccentric shaft disk 82 will drive the connecting rocker arm 83 fixedly connected above and below it to rotate, and the connecting rocker arm 83 will drive the docking cantilever 7 connected to it to rotate, and the docking cantilever 7 will drive the connected flip doors 3 to rotate, so that the two flip doors 3 are flipped toward the inside of the front cabin 1 of the motor vehicle, and during this period, the two lifting hook rods 12 fixedly connected in a circularly symmetrical manner at the top and bottom ends of the parallel seat 87 will hook and move to fit therewith. The release rod 97 is turned over, and the release rod 97 will drive the docking disc 96 connected thereto to rotate until the docking surfaces of the two docking discs 96 rotate to a horizontal state, and the two docking discs 96 will lose their limiting effect relative to the flip groove 95, and separate as the flip storage assembly 8 continues to operate. Before this, the limiting card rod 14 fixedly connected to the end of the front plate 13 will first disengage from the docking card groove 98, and during the rotation of the connecting rocker arm 83, the docking slide bar 85 connected thereto will slide in the guide slide grooves 84 opened on both sides of the top and bottom ends of the connecting seat 81, so that the rotation can be limited while making the rotation more stable, and as the power cylinder 6 continues to pull, the connecting seat 81 will slide between the two symmetrical clamping support frames 4 toward the depth of the front cabin 1 of the motor vehicle.

[0046] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-locking structure for resetting a front door of a motor vehicle, comprising a front cabin (1) of a motor vehicle, wherein the top and bottom of the inner side of the front cabin (1) of the motor vehicle are symmetrically fixedly connected with a clamping support frame (4), and a cylinder fixing frame (5) is fixedly connected between the two clamping support frames (4), and the clamping support frame (4) and the cylinder fixing frame (5) serve as a supporting base, characterized in that: A power cylinder (6) is installed inside the cylinder fixing frame (5); a reversing window (2) is provided in the middle of the wind induction surface of the front cabin (1) of the motor vehicle; two reversing doors (3) are provided inside the reversing window (2); a reversing storage assembly (8) for reversing and storing the reversing doors (3) is provided between the two clamping support frames (4); and a self-locking closing assembly (9) for self-locking the two reversing doors (3) is provided inside and connected to the two reversing doors (3); The self-locking closing assembly (9) comprises a reset bracket seat (91) fixedly connected to the inner side of two flip doors (3) and symmetrically connected thereto; the reset bracket seat (91) is fixedly connected to a limit bracket seat (92) at one end away from the flip door (3); a storage slide groove (93) is provided at the opposite ends of the two limit bracket seats (92); an extension bracket (94) is fixedly connected to the opposite ends of the two limit bracket seats (92); a flip groove (95) is provided at the middle of the top of the extension bracket (94); a docking disc (96) is rotatably connected to the inner side of the flip groove (95); a release rod (97) is fixedly connected to the arc surface of the docking disc (96); a docking slot (98) is provided in the middle of the extended end of the docking disc (96) close to the power cylinder (6); a self-locking reset spring (99) is connected between the release rod (97) and the inner side of the reset bracket seat (91); and a rotation slot (910) is provided at the connection between the release rod (97) and the flip groove (95).

2. The self-locking structure for the front door of a motor vehicle according to claim 1, characterized in that: The two reset bracket seats (91) are circumferentially symmetrical, and the extension bracket (94) of one reset bracket seat (91) is slidably connected to the inside of a receiving slide groove (93) opened on the other reset bracket seat (91).

3. The self-locking structure for the front door of a motor vehicle according to claim 1, characterized in that: The flip storage assembly (8) comprises a connecting seat (81) arranged between two clamping support frames (4), both sides of the connecting seat (81) are rotatably connected with eccentric shaft disks (82), the upper and lower sides of the eccentric shaft disk (82) are fixedly connected with connecting rocker arms (83), the top and bottom sides of the connecting seat (81) are penetrated with guide grooves (84), the ends of the connecting rocker arms (83) are fixedly connected with docking slide bars (85), and the docking slide bars (85) are slidably connected with adjacent guide grooves (84), the middle of the connecting seat (81) is slidably connected with a push-pull slide bar (86), the ends of the push-pull slide bar (86) are fixedly connected with a parallel seat (87), both sides of the parallel seat (87) are provided with side flip grooves (88), the inner sides of the side flip grooves (88) are rotatably connected with arc rods (89), and a return spring (810) is connected between the parallel seat (87) and the connecting seat (81).

4. A motor vehicle front door reset self-locking structure according to claim 3, characterized in that: The upper and lower inner sides of the two flip doors (3) are fixedly connected with docking cantilevers (7), and a plurality of the docking cantilevers (7) are connected to adjacent connecting rocker arms (83).

5. The self-locking structure for the front door of a motor vehicle according to claim 3 is characterized in that: One end of the two arc-shaped rods (89) away from the parallel seat (87) is rotatably connected to the top of the disc of the adjacent eccentric shaft disc (82).

6. The self-locking structure for the front door of a motor vehicle according to claim 3 is characterized in that: A docking groove (10) is provided in the middle of the opposite ends of the two clamping support frames (4), and a docking slider (11) is fixedly connected to the top and bottom ends of the connecting seat (81), and the docking slider (11) is slidably connected inside the adjacent docking grooves (10).

7. The self-locking structure for the front door of a motor vehicle according to claim 3 is characterized in that: The top and bottom ends of the parallel seat (87) are symmetrically connected to a lifting hook rod (12), and the end of the lifting hook rod (12) is in contact with a release rod (97) adjacent thereto.

8. The self-locking structure for the front door of a motor vehicle according to claim 3 is characterized in that: The parallel seat (87) is fixedly connected to a front plate (13) at one end away from the power cylinder (6), and a limit clamping rod (14) is fixedly connected to the middle of the front plate (13) at one end away from the power cylinder (6), and the limit clamping rod (14) is embedded in the docking slot (98).

9. The self-locking structure for the front door of a motor vehicle according to claim 3, characterized in that: The signal input end of the power cylinder (6) is connected to the signal output end of the external control terminal, and the extension end of the power cylinder (6) is connected to the end of the push-pull slide rod (86).

10. The self-locking structure for the front door of a motor vehicle according to claim 7, characterized in that: The joint between the lifting hook rod (12) and the release rod (97) is in an arc shape, and the ends of the two lifting hook rods (12) away from the power cylinder (6) both extend to the inside of the reset bracket seat (91).

Images