Double-door single-drive opening and closing mechanism for front-end cabin door of bullet train

Abstract

The invention relates to the technical field of rail transit, in particular to a double-door single-drive opening and closing mechanism for a front-end cabin door of a bullet train, which comprises a left cabin door and a right cabin door, and is characterized in that mounting mechanisms for bearing the gravity of the left cabin door and the right cabin door are arranged on the left cabin door and the right cabin door; the mounting mechanism is provided with an overground supporting mechanism for supporting the left cabin door and the right cabin door to stably rotate, and the mounting mechanism is provided with a locking mechanism for tightly closing the left cabin door and the right cabin door. By adopting a manual operation mode and an automatic operation mode, the manual operation can simplify the operation steps and improve the operation convenience; the electric control pneumatic control system can achieve automatic operation, manual intervention is reduced, the overall weight is reduced by using the extruded aluminum profile welding framework and the carbon fiber composite cabin door, the welding and machining difficulty of bottom plate assembly welding is reduced by optimizing the structural design, and the overall strength and durability of the opening and closing mechanism are improved.

Description

Technical Field

[0001] The invention relates to the technical field of rail transit, and in particular to a double-door single-drive opening and closing mechanism for a front cabin door of a motor vehicle. Background Art

[0002] The opening and closing mechanism of the front hatch door of the EMU is an important part of the EMU. It is used to open when the EMU is coupled and close to protect the front equipment. The opening and closing mechanism is installed at the front end of the rail vehicle and is a device that realizes the opening or closing of the front hatch door of the rail vehicle. When the rail vehicle is operating normally, the hatch is in a closed state, covering the coupler and other components, and together with the head cover of the whole vehicle, it forms a complete streamlined shape, reducing the wind resistance of the rail vehicle and making the appearance of the rail vehicle more beautiful; when the rail vehicle is reconnected or needs rescue, the hatch is in an open state, exposing the internal cavity, providing the required space for the coupler to be coupled.

[0003] The opening and closing structures in the prior art are usually heavy, which increases the overall weight of the EMU, affects the operating efficiency and energy consumption, and the manual operation of the opening and closing mechanism may require multiple steps and tools, and the operation process is cumbersome and time-consuming, which not only increases the complexity of the operation, but also may cause operational errors and delays. Since the mechanical structure of the opening and closing mechanism contains multiple moving parts, it is easy to increase the possibility of failure and reduce the overall reliability. In view of this, we provide a double-door single-drive opening and closing mechanism for the front door of the EMU. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a double-door single-drive opening and closing mechanism for the front hatch of a motor vehicle, which solves the technical problems that the opening and closing mechanism of the prior art is heavy and the hatch opening and closing efficiency is reduced due to complicated operation, thereby achieving the goal of reducing the weight of the entire opening and closing mechanism, and adopts electric and pneumatic control to improve the degree of automation and reduce manual intervention, thereby improving the locking effect of the hatch.

[0005] In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions: a double-door single-drive opening and closing mechanism for the front door of a motor vehicle, comprising a left door and a right door, the left door and the right door are provided with an installation mechanism that bears the gravity of the left door and the right door, the installation mechanism is provided with a ground support mechanism that supports the stable rotation of the left door and the right door, and the installation mechanism is provided with a locking mechanism that keeps the left door and the right door tightly closed.

[0006] The locking mechanism includes a base, on which two groups of lower rocker arm main shafts are rotatably connected, on which a lower left rocker arm assembly and a lower right rocker arm assembly are rotatably installed, and the lower left rocker arm assembly and the lower right rocker arm assembly are distributed in the same plane, an operating rocker arm assembly is movably installed on the base, a gas spring is installed on the operating rocker arm assembly, a plurality of sliding guide rods are installed on the base, a slider is movably connected to the sliding guide rod, a resistance wheel is installed on the sliding guide rod, a resistance arm is installed on the base, a torsion spring is connected to the resistance arm, and an actuator cylinder is installed on the base.

[0007] Preferably, the base includes a mounting plate weld resistance, a bottom plate weld resistance is installed on the mounting plate weld resistance, two groups of operating rocker arm shaft seats are installed on the mounting plate weld resistance, a lower rocker arm main shaft seat is installed on the bottom plate weld resistance, a gas spring mounting seat is installed on the base, four groups of resistance arm mounting seats are installed on the bottom plate weld resistance, a torsion spring mounting groove is opened on the bottom plate weld resistance, and a cylinder tail end mounting seat is installed on the actuator cylinder.

[0008] Preferably, the lower right rocker arm assembly includes a lower rocker arm solder resist, and the lower rocker arm solder resist dust is symmetrically distributed on both sides of the mounting plate solder resist, a lower rocker arm hanging plate is movably mounted on the lower rocker arm solder resist, and a rocker arm main shaft sleeve is mounted on the lower rocker arm solder resist.

[0009] Preferably, the operating rocker arm assembly includes an operating shaft, an operating rocker arm is rotatably connected to the operating shaft, a gas spring mounting seat 2 is connected to the operating rocker arm, a slider connecting rod is rotatably connected to the operating rocker arm, a cylinder front end mounting seat is installed on the operating rocker arm, and a hexagonal column is installed at the bottom end of the operating shaft.

[0010] Preferably, the resistance arm includes a resistance arm rotating shaft, a resistance arm stopper is installed on the mounting plate weld resistance, an adjusting screw is installed on the mounting plate weld resistance, and a deep groove ball bearing is installed on the side of the resistance arm stopper.

[0011] Preferably, the mounting mechanism comprises a support frame, on which are mounted a plurality of groups of T-shaped slide-slot bolt assemblies, on which is mounted a profile frame weld-resistant member connected to an upper support mechanism, and on which is mounted a side mounting seat.

[0012] Preferably, the upper supporting mechanism includes an axle seat, on which two groups of upper rocker arm main shafts are rotatably connected, on which the upper rocker arm main shafts are rotatably connected an upper right rocker arm assembly and an upper left rocker arm assembly, and upper rocker arm hanging plates are movably mounted on the upper right rocker arm assembly and the upper left rocker arm assembly.

[0013] Preferably, the connecting end of the actuator cylinder is connected to the controller, and the controller includes an electrical control box, an air control box, pneumatic pipelines, cables, and a travel switch. The actuator cylinder is connected to the electrical control box, the air control box, and the travel switch through pneumatic pipelines and cables. Upper and lower hanging plate mounting brackets are installed on the inner sides of the left and right cabin doors.

[0014] By means of the above technical solution, the present invention provides a double-door single-drive opening and closing mechanism for the front door of a motor vehicle, which has at least the following beneficial effects:

[0015] 1. The present invention adopts both manual and automatic operation modes. Manual operation can simplify the operation steps and improve the convenience of operation. The electric-pneumatic control system can realize automatic operation, reduce manual intervention, and improve operation efficiency and accuracy. The dual-mode design also enhances the adaptability of the equipment, and the structural design of the dual-mode operating system is conducive to rapid diagnosis of problems.

[0016] 2. The present invention reduces the overall weight by using an extruded aluminum profile welded frame and a carbon fiber composite door, thereby improving operating efficiency and energy economy. The device simplifies the mechanical structure, improves the reliability and stability of moving parts, and ensures a stable and reliable locking effect through mechanical self-locking and friction automatic self-locking functions, and can keep the door stably locked even in high-speed operation or vibration environments.

[0017] 3. The present invention reduces the difficulty of welding and processing of the bottom plate assembly by optimizing the structural design, thereby reducing the difficulty and cost in the manufacturing process, and uses high-performance materials, which have the advantages of high strength, light weight, corrosion resistance, etc., thereby improving the overall strength and durability of the opening and closing mechanism. In addition, the high-performance materials are highly recyclable and reusable, reducing the environmental burden after the equipment is discarded. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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.

[0019] In the attached picture:

[0020] Figure 1 This is a schematic diagram of the appearance structure of the present invention in the open and locked state;

[0021] Figure 2 This is a schematic diagram of the appearance of the structure of the present invention in a closed and locked state;

[0022] Figure 3 It is a schematic diagram of the locking mechanism structure of the present invention;

[0023] Figure 4It is a side view structural schematic diagram of the locking mechanism of the present invention;

[0024] Figure 5 It is a partial structural schematic diagram of the locking mechanism of the present invention;

[0025] Figure 6 It is a schematic diagram of the assembly structure of the lower left rocker arm of the present invention;

[0026] Figure 7 It is a schematic diagram of the overall structure of the operating swing rod of the present invention.

[0027] In the figure: 1, left door; 2, right door; 6, controller;

[0028] 3. Installation mechanism; 31. Support frame; 32. T-slot bolt assembly; 33. Profile frame welding resistance; 34. Side mounting seat;

[0029] 4. Locking mechanism; 41. Base; 42. Lower rocker arm main shaft; 43. Lower left rocker arm assembly; 44. Lower right rocker arm assembly; 45. Operating rocker arm assembly; 46. Gas spring; 47. Sliding guide rod; 48. Sliding block; 49. Resistance wheel; 410. Resistance arm; 411. Torsion spring; 412. Actuator cylinder;

[0030] 401, mounting plate welding resistance; 402, bottom plate welding resistance; 403, operating rocker arm shaft seat; 404, lower rocker arm main shaft seat; 405, gas spring mounting seat 1; 406, resistance arm mounting seat; 407, torsion spring mounting groove; 408, cylinder tail end mounting seat;

[0031] 441, lower rocker arm welding resistance; 442, lower rocker arm hanging plate; 443, rocker arm main shaft sleeve;

[0032] 451, operating shaft; 452, operating swing rod; 453, gas spring mounting seat 2; 454, slider connecting rod; 455, cylinder front end mounting seat; 456, hexagonal column;

[0033] 4101, resistance arm rotating shaft; 4102, resistance arm stopper; 4103, adjusting screw; 4104, deep groove ball bearing;

[0034] 5. Upper supporting mechanism; 51. Axle seat; 52. Upper rocker arm main shaft; 53. Upper right rocker arm assembly; 54. Upper rocker arm hanging plate; 55. Upper left rocker arm assembly. 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] Embodiment 1

[0037] Figure 1-Figure 7 This is an embodiment of the present invention: Based on the problem that the opening and closing mechanisms of the existing prior art are heavy and the efficiency of door opening and closing is reduced due to complicated operation, this embodiment provides a double-door single-drive opening and closing mechanism for the front door of a motor vehicle, including a left door 1 and a right door 2. Upper and lower hanging plate mounting seats are installed on the inner sides of the left door 1 and the right door 2, which are convenient for installation and connection with the structure in the upper supporting mechanism 5, thereby improving the stability and safety of opening and closing of the left door 1 and the right door 2. The left door 1 and the right door 2 are provided with an installation mechanism 3 that bears the gravity of the left door 1 and the right door 2, the installation mechanism 3 is provided with a ground supporting mechanism 5 that supports the stable rotation of the left door 1 and the right door 2, and the installation mechanism 3 is provided with a locking mechanism 4 that keeps the left door 1 and the right door 2 tightly closed. The mounting mechanism 3 can be connected to the front wall of the vehicle, and the use of aluminum alloy material can reduce the weight of the overall structure and reduce energy consumption. The left door 1 and the right door 2 are both made of carbon fiber composite materials, which reduces their own weight and the load on the aluminum alloy welded frame. The locking mechanism 4 can adjust the locking force as needed to ensure the locking effect and improve the stability and safety of the opening and closing mechanism. The upper supporting mechanism 5 is symmetrically distributed up and down, which can stably support the left door 1 and the right door 2, and also has a certain adjustment function, which improves the flexibility and accuracy of the installation and ensures that the left door 1 and the right door 2 can be accurately aligned and closed.

[0038] In the process of opening and closing the left door 1 and the right door 2, in order to lock the left door 1 and the right door 2 by a single driving source of the double-group actuating cylinder 412, the locking mechanism 4 includes a base 41, on which two groups of lower rocker arm main shafts 42 are rotatably connected, on which the lower rocker arm main shafts 42 are rotatably mounted a lower left rocker arm assembly 43 and a lower right rocker arm assembly 44, and the lower left rocker arm assembly 43 and the lower right rocker arm assembly 44 are distributed in the same plane, on the base 41 is movably mounted an operating rocker arm assembly 45, on which is mounted a gas spring 46, and on the base 41 are mounted a plurality of sliding guide rods 47, on which the sliding guide rods 47 are mounted. A slider 48 is movably connected, a resistance wheel 49 is installed on the sliding guide rod 47, a resistance arm 410 is installed on the base 41, a torsion spring 411 is connected to the resistance arm 410, and an actuator cylinder 412 is installed on the base 41. The connecting end of the actuator cylinder 412 is connected to the controller 6, and the controller 6 includes an electric control box, an air control box, pneumatic pipelines, cables, and a travel switch. The actuator cylinder 412 is connected to the electric control box, the air control box, and the travel switch through pneumatic pipelines and cables, so as to control the telescopic operation of the actuator cylinder 412, which is convenient for automatically opening and closing the left cabin door 1 and the right cabin door 2, thereby improving the locking effect.

[0039] The base 41 includes a mounting plate solder resist 401, a bottom plate solder resist 402 is mounted on the mounting plate solder resist 401, two sets of operating rocker arm shaft seats 403 are mounted on the mounting plate solder resist 401, a lower rocker arm main shaft seat 404 is mounted on the bottom plate solder resist 402, a gas spring mounting seat 405 is mounted on the base 41, four sets of resistance arm mounting seats 406 are mounted on the bottom plate solder resist 402, a torsion spring mounting groove 407 is opened on the bottom plate solder resist 402, and a cylinder tail end mounting seat 408 is installed on the actuator cylinder 412.

[0040] The lower right rocker arm assembly 44 includes a lower rocker arm weld resistance 441 , and the lower rocker arm weld resistance 441 is symmetrically distributed on both sides of the mounting plate weld resistance 401 , a lower rocker arm hanging plate 442 is movably mounted on the lower rocker arm weld resistance 441 , and a rocker arm main shaft sleeve 443 is mounted on the lower rocker arm weld resistance 441 .

[0041] The operating rocker arm assembly 45 includes an operating shaft 451, to which an operating rocker arm 452 is rotatably connected, to which a gas spring mounting seat 2 453 is connected, to which a slider connecting rod 454 is rotatably connected, to which a cylinder front end mounting seat 455 is mounted, and a hexagonal column 456 is mounted at the bottom end of the operating shaft 451.

[0042] The resistance arm 410 includes a resistance arm rotating shaft 4101 , a resistance arm stopper 4102 is installed on the mounting plate solder resist 401 , an adjusting screw 4103 is installed on the mounting plate solder resist 401 , and a deep groove ball bearing 4104 is installed on the side of the resistance arm stopper 4102 .

[0043] The controller provides an air source to the 6-position actuator cylinder 412, and enables the actuator cylinder 412 to extend and retract. When the door assembly is in a closed and locked state, the slider 48 is located at the end of the travel of the sliding guide rod 47, and the angle between the operating rocker rod 452 and the sliding guide rod 47 is 86 degrees. Due to the effect of mechanical self-locking, external force cannot cause the rocker arm to rotate, thereby realizing the locking function of the mechanism. When the angle between the operating rocker rod 452 and the sliding guide rod 47 is within the range of 84.3 degrees to 95.7 degrees, the external force is transmitted to the slider 48 through the door and the rocker arm, and the friction force generated by the component force perpendicular to the sliding direction pressing the sliding guide rod 47 is greater than the friction force generated by the component force along the sliding direction. The force component in the direction of the sliding block 47 causes the friction force to self-lock, and the slider 48 cannot be moved, which is beneficial to the locking of the mechanism. The gas spring 46 provides a pre-load elastic force during installation, and is always in a compressed state during the movement of the opening and closing mechanism, so that the slider 47 presses the slider 47 stop more tightly, preventing the abnormal rotation of the operating swing rod 452 caused by the bumps, vibrations and other disturbances in the operation of the rail vehicle, and avoiding the problem of locking failure. The unlocking tool is connected to the hexagonal column 456 of the operating shaft, and the operating swing rod 452 is driven by manpower to rotate, or the actuator cylinder 412 is pulled backward to rotate the operating swing rod 452, so that the slider 47 slides in the sliding guide rod 47. When the angle between the operating rocker arm 452 and the sliding guide rod 47 is about 90 degrees, the resistance arm 410 rotates about 6.4 degrees around the resistance arm rotating shaft 4101 under the action of the resistance wheel 49 and moves away from the resistance arm stop. After the angle between the operating rocker arm 452 and the sliding guide rod 47 is greater than 90 degrees, the mechanical lock of the opening and closing mechanism is released, and the operating rocker arm 452 is continued to be driven to rotate by manpower or the execution cylinder 412, so that the slider 48 slides in the sliding guide rod 47, driving the rocker arm to rotate around the rocker arm main shaft sleeve 443, and finally driving the movable door to realize the door opening function. In the first half of the door opening, the elastic effect of the gas spring 46 hinders the rotation of the operating rocker arm 452. In order to rotate, additional power needs to be continuously provided to overcome the elastic force of the gas spring 46 to enable the locking mechanism to operate. In the second half of the hatch opening, the elastic effect of the gas spring 46 promotes the rotation of the operating rocker arm 452. When it rotates again to the point where the angle between the operating rocker arm 452 and the sliding guide rod 47 is about 96 degrees, the resistance wheel 49 at the bottom of the slider connecting rod 454 contacts the resistance arm 410 arranged on the base. After contact, additional power needs to be provided to force the resistance arm 410 to squeeze the deflection torsion spring to enable the operating rocker arm 452 to continue to rotate. The operating rocker arm 452 continues to be driven to rotate by manpower or the execution cylinder 412, so that the slider 48 slides in the sliding guide rod 47.The resistance wheel 49 at the bottom of the slider connecting rod 454 is in continuous contact with the resistance arm 410 at the rear end of the base. Additional power needs to be continuously provided to force the resistance arm 410 to compress the torsion spring so that the operating rocker arm 452 can continue to rotate. When it rotates again to the point where the angle between the operating rocker arm 452 and the sliding guide rod 47 is about 90 degrees, the resistance arm 410 arranged at the rear end of the bottom plate assembly welding 402 rotates about 6.3 degrees around the resistance arm rotating shaft 4101 under the action of the resistance wheel 49 and moves away from the resistance arm stop. The mechanical locking function of the opening and closing mechanism takes effect. Finally, the slider 48 is located at the end of the stroke of the sliding guide rod 47 and contacts the stop of the slider 48. The angle between the operating rocker arm 452 and the sliding guide rod 47 is 86 degrees, and the hatch assembly is opened and locked in place.

[0044] Embodiment 2

[0045] Based on the first embodiment, Figure 1-Figure 7 As shown, based on the existing existing technology, the opening and closing mechanism is heavy and the efficiency of hatch opening and closing is reduced due to complicated operation. There is still the problem of heavy weight of the opening and closing structure, which easily increases energy consumption, reduces operating efficiency, and increases maintenance costs. Therefore, the device is also provided with a structure with light weight and high bearing capacity.

[0046] In the process of opening and closing the left door 1 and the right door 2, in order to make the left door 1 and the right door 2 unfold more smoothly and reduce power consumption, the installation mechanism 3 includes a support frame 31, on which are installed a plurality of groups of T-shaped slide bolt assemblies 32, on which is installed a profile frame weld resistance 33 connected to the upper support mechanism 5, and on which is installed a side mounting seat 34. The support frame 31 is a symmetrical structure made of aluminum alloy. The main part is welded by three specifications of extruded aluminum profiles. The support frame 31 is connected to the front wall of the vehicle through three groups of T-slot bolts 32 on the upper part and the side mounting seat 34. In the T-slot of the profile frame welding 33, M8 slot nuts are embedded for installing cables, trachea pipe clamps, etc. of the electric control pneumatic control system, and installation interfaces for equipment such as speakers are reserved. The support frame 31 provides support and bearing for each component of the opening and closing mechanism to ensure the stability and safety of each component during the opening and closing process. Through its symmetrically arranged structure, the support frame 31 can evenly disperse and transmit external forces, avoid local stress concentration, and improve the strength and stability of the overall structure. The T-slot bolt combination 32 and the embedded M8 slot nut design of the support frame 31 make the installation and adjustment of cables, trachea pipe clamps, etc. of the electric control pneumatic control system more convenient, improve the flexibility and accuracy of installation, and provide a stable support for the opening and closing mechanism to ensure the protection function of the front equipment of the EMU and the realization of the car coupler connection function.

[0047] Embodiment 3

[0048] On the basis of the first and second embodiments, Figure 1-Figure 7 As shown, based on the problem that the opening and closing mechanism of the existing prior art is heavy and the efficiency of hatch opening and closing is reduced due to complicated operation, there is still the problem of supporting and bearing stability of the hatch, which can easily affect the stability and safety of the hatch during the opening and closing process. Therefore, the device is also provided with a structure for stably supporting the hatch.

[0049] In the process of opening and closing the left door 1 and the right door 2, in order to ensure the stability and safety of the left door 1 and the right door 2 during the opening and closing process, the upper support mechanism 5 includes an axle seat 51, on which two sets of upper rocker arm main shafts 52 are rotatably connected, on which the upper rocker arm main shaft 52 is rotatably connected, and on which the upper right rocker arm assembly 53 and the upper left rocker arm assembly 55 are rotatably connected, and on which the upper right rocker arm assembly 53 and the upper left rocker arm assembly 55 are movably mounted upper rocker arm hanging plates 54. The overall structure of the upper support mechanism 5 is symmetrically arranged, the axle seat 51 is mounted on the upper part of the support frame 31, the upper left rocker arm assembly 55 and the upper right rocker arm assembly 53 can rotate around the axis of the corresponding rocker arm rotating shaft, respectively, and the upper rocker arm hanging plates 54 and the upper rocker arm, and the upper rocker arm hanging plates 54 and the door assembly are connected through waist-shaped holes, which improves the flexibility and accuracy of the installation, ensures that the door can be accurately aligned and closed, and provides stable support for the opening and closing mechanism through its symmetrically arranged structure, ensuring the stability and safety of the door during the opening and closing process.

[0050] 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.

[0051] 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 double-door single-drive opening and closing mechanism for a front door of a motor vehicle, comprising a left door (1) and a right door (2), characterized in that: The left door (1) and the right door (2) are provided with a mounting mechanism (3) for bearing the weight of the left door (1) and the right door (2); the mounting mechanism (3) is provided with a ground supporting mechanism (5) for supporting the left door (1) and the right door (2) to rotate stably; and the mounting mechanism (3) is provided with a locking mechanism (4) for tightly closing the left door (1) and the right door (2); The locking mechanism (4) comprises a base (41), two groups of lower rocker arm main shafts (42) are rotatably connected to the base (41), a lower left rocker arm assembly (43) and a lower right rocker arm assembly (44) are rotatably mounted on the lower rocker arm main shaft (42), and the lower left rocker arm assembly (43) and the lower right rocker arm assembly (44) are distributed in the same plane, an operating rocker arm assembly (45) is movably mounted on the base (41), a gas spring (46) is mounted on the operating rocker arm assembly (45), a plurality of sliding guide rods (47) are mounted on the base (41), a slider (48) is movably connected to the sliding guide rod (47), a resistance wheel (49) is mounted on the sliding guide rod (47), a resistance arm (410) is mounted on the base (41), a torsion spring (411) is connected to the resistance arm (410), and an actuator cylinder (412) is mounted on the base (41).

2. The double-door single-drive opening and closing mechanism of the front hatch of a motor vehicle according to claim 1, characterized in that: The base (41) includes a mounting plate solder resist (401), a bottom plate solder resist (402) is mounted on the mounting plate solder resist (401), two groups of operating rocker arm shaft seats (403) are mounted on the mounting plate solder resist (401), a lower rocker arm main shaft seat (404) is mounted on the bottom plate solder resist (402), a gas spring mounting seat (405) is mounted on the base (41), four groups of resistance arm mounting seats (406) are mounted on the bottom plate solder resist (402), a torsion spring mounting groove (407) is provided on the bottom plate solder resist (402), and a cylinder tail end mounting seat (408) is mounted on the actuator cylinder (412).

3. The double-door single-drive opening and closing mechanism of the front hatch of a motor vehicle according to claim 1, characterized in that: The lower right rocker arm assembly (44) includes a lower rocker arm solder resist (441), and the lower rocker arm solder resist (441) is symmetrically distributed on both sides of the mounting plate solder resist (401), a lower rocker arm hanging plate (442) is movably mounted on the lower rocker arm solder resist (441), and a rocker arm main shaft sleeve (443) is mounted on the lower rocker arm solder resist (441).

4. The double-door single-drive opening and closing mechanism for the front hatch of a motor vehicle according to claim 1, characterized in that: The operating rocker assembly (45) comprises an operating shaft (451), an operating rocker (452) is rotatably connected to the operating shaft (451), a gas spring mounting seat 2 (453) is connected to the operating rocker (452), a slider connecting rod (454) is rotatably connected to the operating rocker (452), a cylinder front end mounting seat (455) is mounted on the operating rocker (452), and a hexagonal column (456) is mounted on the bottom end of the operating shaft (451).

5. The double-door single-drive opening and closing mechanism for the front hatch of a motor vehicle according to claim 1, characterized in that: The resistance arm (410) includes a resistance arm rotating shaft (4101), a resistance arm stopper (4102) is installed on the mounting plate solder resist (401), an adjusting screw (4103) is installed on the mounting plate solder resist (401), and a deep groove ball bearing (4104) is installed on the side of the resistance arm stopper (4102).

6. The double-door single-drive opening and closing mechanism for the front hatch of a motor vehicle according to claim 1, characterized in that: The mounting mechanism (3) comprises a supporting frame (31), on which are mounted a plurality of groups of T-shaped slide-slot bolt assemblies (32), on which are mounted a profile frame weld-resistance (33) connected to an upper supporting mechanism (5), and on which are mounted a side mounting seat (34) on the side of the supporting frame (31).

7. The double-door single-drive opening and closing mechanism for the front hatch of a motor vehicle according to claim 1, characterized in that: The upper support mechanism (5) comprises an axle seat (51), two sets of upper rocker arm main shafts (52) are rotatably connected to the axle seat (51), an upper right rocker arm assembly (53) and an upper left rocker arm assembly (55) are rotatably connected to the upper rocker arm main shaft (52), and upper rocker arm hanging plates (54) are movably mounted on the upper right rocker arm assembly (53) and the upper left rocker arm assembly (55).

8. The double-door single-drive opening and closing mechanism for the front hatch of a motor vehicle according to claim 1, characterized in that: The connecting end of the actuator cylinder (412) is connected to the controller (6), and the controller (6) includes an electric control box, an air control box, pneumatic pipelines, cables, and a travel switch. The actuator cylinder (412) is connected to the electric control box, the air control box, and the travel switch through the pneumatic pipelines and cables. Upper and lower hanging plate mounting seats are installed on the inner sides of the left cabin door (1) and the right cabin door (2).

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