Vehicle-mounted shelter electric overturning and folding combined door and opening and closing method

Abstract

The invention discloses a vehicle-mounted shelter electric turnover folding combination door and an opening and closing method, the folding combination door comprises a top turnover door, a side turnover door, a pair of top turnover door electric push rods and a pair of side turnover door electric push rods, and the two ends of the pair of top turnover door electric push rods are hinged to the side turnover door and the top turnover door respectively; the two ends of the pair of side turnover door electric push rods are hinged to the vertical plate and the side turnover door respectively. The opening and closing method comprises different steps of A) opening the folding combination door and B) closing the folding combination door. The vehicle-mounted shelter is compact in structure and rapid and convenient to use, the outer side face of the side wall of the shelter is not occupied when the folding combination door is opened, the top wall opening and the adjacent side wall opening of the vehicle-mounted shelter are tightly sealed by the folding combination door when the folding combination door is closed, opening and closing efficiency is high, the rainproof effect is good, reliable safety guarantee is provided for personnel and equipment in the shelter, and practicability is high. Precious space in the vehicle-mounted square cabin is not occupied, and the vehicle-mounted square cabin has wide application in the application field of special square cabins.

Description

Technical Field

[0001] This invention relates to a vehicle-mounted container, and more particularly to a side hatch of a special vehicle-mounted container equipped with radar and microwave communication equipment, belonging to the field of special vehicle technology. Background Technology

[0002] Vehicle-mounted special-purpose shelters used for detecting long-range targets and conducting microwave communication are equipped with radar and microwave communication equipment. To ensure the installation and maintenance of the radar equipment and microwave communication equipment, a side door with a length of more than 2 / 3 of the shelter's length and the same height as the shelter's side wall needs to be installed on the longitudinal side of the shelter. The vehicle-mounted shelter also needs to have good maneuverability and meet railway transportation requirements. Conventional side-opening sliding doors or flip-up doors occupy a large area on the longitudinal side of the vehicle-mounted shelter when open, have low opening and closing efficiency, and limit the usable space, seriously affecting the normal operation of the vehicle-mounted shelter. Summary of the Invention

[0003] The purpose of this invention is to provide an electric tilting and folding combination door for vehicle-mounted cabins that occupies less space inside the cabin and is highly efficient and convenient to operate, as well as its opening and closing method.

[0004] This invention is achieved through the following technical solution:

[0005] A vehicle-mounted modular cabin electric tilting and folding combination door includes a top tilting door, a side tilting door, a pair of top tilting door electric push rods, and a pair of side tilting door electric push rods. The shape of the top tilting door matches the shape of the top wall opening and the upper part of the adjacent side wall opening of the vehicle-mounted modular cabin, and the shape of the side tilting door matches the shape of the lower part of the side wall opening. The lower side of the top tilting door and the upper side of the side tilting door are hinged by several built-in upper hinges, and the bottom of the side tilting door is hinged to the cabin floor below the side wall opening by several lower hinges. The fixed end hinge lugs of the pair of top tilting door electric push rods are respectively symmetrically fixed to the top tilting door at the middle of both ends of the inner side of the side tilting door. The electric push rod is hinged to the fixed end hinge seat, and a pair of top-flipping door electric push rod moving end hinge ears are respectively hinged to the top-flipping door electric push rod moving end hinge seats symmetrically fixed at both ends of the inner side of the top-flipping door; a pair of side-flipping door electric push rod fixed end hinge ears are respectively hinged to the side-flipping door electric push rod fixed end hinge seats symmetrically fixed at the upper end of the upright plate, and the upper and lower ends and one side of the upright plate are respectively perpendicularly fixed to the longitudinal ends of the top wall opening, the container floor and the longitudinal ends of the side wall opening; a pair of side-flipping door electric push rod moving end hinge ears are respectively hinged to the side-flipping door electric push rod moving end hinge seats symmetrically fixed at both ends of the inner side of the side-flipping door.

[0006] The objectives of this invention can also be further achieved through the following technical measures.

[0007] Furthermore, the top flip door is a right-angled structure with the top plate and side plate vertically connected. The top plate is a combination of a trapezoid at the top and a rectangle at the bottom, and the side plate is rectangular. The lower side of the right-angled structure is hinged to the upper side of the side flip door through several spaced-apart built-in hinges.

[0008] Furthermore, the hinge seat of the fixed end of the top flip door electric push rod is an L-shaped hinge seat. The base plate of the L-shaped hinge seat is fixed to the upper end of the vertical plate. A pair of hinge plates of the L-shaped hinge seat are fixed on the vertical plate of the L-shaped hinge seat. The hinge lug of the moving end of the side flip door electric push rod is inserted between the pair of hinge plates and hinged to the pair of hinge plates.

[0009] Furthermore, a sealing device is provided between the edge of the top wall opening and the edge of the top plate of the adjacent top flip door. The sealing device includes a multi-tooth sealing edge embedded and fixed on the edge of the top plate of the top flip door and a hollow ring sealing edge embedded and fixed on the asymmetrical groove-shaped bent edge on the lower side of the top wall opening. When the top flip door is closed, the tips of the teeth of the multi-tooth sealing edge of the top flip door abut against the profile of the top wall opening edge, and the upper side of the hollow ring sealing edge abuts against the lower side of the edge of the top flip door adjacent to the top wall opening.

[0010] A method for opening and closing an electric tilting and folding combination door for a vehicle-mounted container includes the following steps: A) opening the folding combination door and B) closing the folding combination door.

[0011] A) Open the folding combination door

[0012] A1) When the operator presses the "Folding Combination Door Opening" button on the remote control, the electric push rods of a pair of top flip doors are moved outward synchronously through the electronic control system. The top flip doors flip up and disengage from the top wall opening and the upper part of the adjacent side wall opening. At this time, the angle β between the outer side of the side panel of the top flip door and the outer side of the side flip door is less than 180°, thus completing the action of the top flip door disengaging from the top of the cabin.

[0013] A2) Then the electronic control system commands the moving ends of a pair of side-tilting door electric push rods to move outward synchronously, thereby pushing the top tilting door and the side tilting door to rotate clockwise around the lower hinge axis and tilt outward, and the side tilting door begins to disengage from the cabin side wall opening; when the angle α between the side tilting door and the side wall reaches 90 to 100°, it enters the A3) compound opening procedure.

[0014] A3) The electronic control system commands the moving ends of a pair of side-flipping door electric push rods to move outward synchronously, while the moving ends of a pair of top-flipping door electric push rods to retract inward synchronously. As the side-flipping door rotates clockwise around the lower hinge axis and flips outward, the top-flipping door rotates counterclockwise around the upper hinge axis and flips inward, causing the top-flipping door and the side-flipping door to gradually overlap until the angle α between the side-flipping door and the side wall reaches 140-150°. At this point, the top-flipping door folds inward to a position parallel to the side-flipping door, and the moving ends of the pair of top-flipping door electric push rods stop moving, completing the opening action of the folding combination door.

[0015] B) Close the folding combination door

[0016] B1) When the operator presses the "Folding Combination Door Close" button on the remote control, the side-flipping door is instructed to flip and close counterclockwise through the electronic control system. The moving ends of the pair of electric push rods of the side-flipping door retract in sync, thereby pulling the top flipping door and the side-flipping door to rotate counterclockwise around the lower hinge axis. When the angle α between the side-flipping door and the side wall reaches 90 to 100°, it enters the B2) composite closing program.

[0017] B2) The electronic control system commands the moving ends of a pair of electric push rods for the side-tilting doors to retract inwards simultaneously, while the moving ends of a pair of electric push rods for the top-tilting doors move outwards simultaneously. As the side-tilting doors rotate counterclockwise around the lower hinge axis and fold inwards, the top-tilting doors rotate clockwise around the upper hinge axis and fold outwards until the angle β between the outer side panel of the top-tilting door and the outer side panel of the side-tilting door is less than 180°. At this point, the moving ends of the electric push rods for the top-tilting doors stop moving. The moving ends of the electric push rods for the side-tilting doors continue to retract inwards in sync, and the side-tilting doors, along with the top-tilting doors, continue to rotate counterclockwise and fold inwards until the side-tilting doors are closed in place. At this point, when the tilted top-tilting door is above the opening in the cabin top wall, the moving ends of the electric push rods for the side-tilting doors stop moving.

[0018] B3) The electronic control system commands the moving ends of the electric push rods of the top tilting door to retract in sync, pulling the top tilting door to rotate counterclockwise around the upper hinge axis to gradually close the opening in the cabin top wall until the top tilting door is completely closed. At this time, the outer side of the side panel of the top tilting door is flush with the outer side of the side tilting door, completing the operation of closing the folding combination door.

[0019] This invention employs a right-angled top-hinged door and a planar side-hinged door, hinged vertically. Opening and closing of the folding door is achieved through the synchronous movement of different combinations of the moving ends of a pair of electric push rods for the top and side doors, enabling rapid opening and closing. The structure is compact and easy to use. When open, the folding door does not occupy the outer sidewall of the vehicle-mounted container; when closed, it tightly seals the top and adjacent sidewall openings. The folding door offers high opening and closing efficiency, good rain protection, and reliable safety for personnel and equipment inside. The electric push rods are respectively positioned close to the inner sides of the top and side doors, without occupying valuable space within the vehicle-mounted container, making it widely applicable in special-purpose container applications.

[0020] The advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments, which are given by way of example only with reference to the accompanying drawings. Attached Figure Description

[0021] Figure 1 It is a 3D view of the top and side flip doors in their closed positions;

[0022] Figure 2 It is a 3D view showing that the top and side flip doors have not yet been fully opened;

[0023] Figure 3 It is a 3D view of the top flip door and the side flip door in their fully opened positions;

[0024] Figure 4 yes Figure 2 Enlarged view of Part I;

[0025] Figure 5 yes Figure 1 Enlarged view of the AA section;

[0026] Figure 6 This is a simplified diagram showing the steps to open a folding combination door;

[0027] Figure 7 This is a simplified diagram showing the steps to close a folding combination door. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] like Figures 1-3As shown, the present invention includes a top-hinged door 1, a side-hinged door 2, a pair of top-hinged door electric push rods 3 and a pair of side-hinged door electric push rods 4. The shape of the top-hinged door 1 matches the upper shape of the top wall opening 101 and the adjacent side wall opening 102 of the vehicle-mounted cabin. The shape of the side-hinged door 2 matches the lower shape of the side wall opening 102. The lower side of the top-hinged door 1 and the upper side of the side-hinged door 2 are hinged by three built-in upper hinges 5. The bottom of the side-hinged door 2 is hinged to the cabin floor 103 below the side wall opening 102 by three lower hinges 6. The fixed end hinge lugs 31 of the pair of top-hinged door electric push rods are respectively hinged to the fixed end hinge seats 32 of the top-hinged door electric push rods symmetrically fixed at the middle of both ends of the inner side of the side-hinged door 2. The movable end hinge lugs 33 of the pair of top-hinged door electric push rods are respectively hinged to the movable end hinge seats 34 of the top-hinged door electric push rods symmetrically fixed at both ends of the inner side of the top-hinged door 1. A pair of hinge lugs 41 for the fixed end of the side-tilting door's moving push rod are respectively hinged to hinge seats 42 for the fixed end of the side-tilting door's electric push rod, which are symmetrically fixed to the upper end of the upright plate 103. The upper and lower ends and one side of the upright plate 104 are respectively vertically fixed to the longitudinal ends of the top wall opening 101, the container floor 103, and the longitudinal ends of the side wall opening 102. The upright plate 103 is used to install the hinge seats 42 for the fixed end of the side-tilting door's electric push rod. A pair of hinge lugs 43 for the moving end of the side-tilting door's electric push rod are respectively hinged to hinge seats 44 for the moving end of the side-tilting door's electric push rod, which are symmetrically fixed to the inner ends of the side-tilting door 2.

[0030] The top-hinged door 1 is a right-angled structure with a top plate 11 and a side plate 12 perpendicularly connected. The top plate 11 is a combination of a trapezoidal upper section and a rectangular lower section, while the side plate 12 is rectangular. The lower side of the right-angled side plate is hinged to the upper side of the side-hinged door 2 via three spaced-apart built-in hinges 5. This invention employs a structure where the lower side of the top-hinged door 1 is hinged to the side-hinged door 2, and the lower side of the side-hinged door 2 is hinged to the cabin floor 103. The top-hinged door 1 and the side-hinged door 2 can rotate relative to each other, allowing the folding combination door to close in stages. This prevents the top-hinged door 1 from damaging the top wall opening 101 of the vehicle-mounted cabin when closing.

[0031] like Figure 4 As shown, the top flip door electric push rod fixed end hinge seat 42 is an L-shaped hinge seat. The base plate 421 of the L-shaped hinge seat 42 is fixed to the upper end of the upright plate 104. A pair of hinge plates 422 of the L-shaped hinge seat 42 are fixed on the vertical plate 423 of the L-shaped hinge seat. The side flip door electric push rod moving end hinge ear 41 is inserted between a pair of hinge plates 422 and is hinged to the pair of hinge plates 422.

[0032] like Figure 5As shown, a sealing device 7 is provided between the edge of the top wall opening 101 and the edge of the top plate 11 of the adjacent top flip door 1. This device includes a multi-tooth sealing edge 71 embedded and fixed to the edge of the top plate 11 of the top flip door 1, and a hollow ring sealing edge 72 embedded and fixed to the asymmetrical grooved bending edge 107 on the lower side of the edge of the top wall opening 101. When the top flip door 1 is closed, the tips of the teeth of the multi-tooth sealing edge 71 abut against the profile of the edge of the top wall opening 101, and the upper side of the hollow ring sealing edge 72 abuts against the lower side of the edge of the top flip door 1 adjacent to the top wall opening 101. At this time, the multi-tooth sealing edge 71 seals the gap between the top flip door 1 and the top wall opening 101, effectively preventing rainwater from leaking into the vehicle-mounted container along the gap. If a leak occurs, the rainwater can only leak into the bottom of the groove of the asymmetrical grooved bending edge 107. The hollow ring sealing edge 72 effectively prevents rainwater from leaking into the vehicle-mounted container, providing a double protection against rainwater leakage.

[0033] The folding combination door of this invention adopts an integrated structure with a top flip door 1 and a side flip door 2 hinged together. The top flip door 1 and the side flip door 2 are driven to open and close as a whole by their respective electric push rods, making it highly efficient and quick to use. The folding combination door can reliably close the top wall opening 101 and the side wall opening 102. Since the length of the side wall opening 102 is more than 2 / 3 of the length of the vehicle-mounted shelter, it facilitates the entry and exit of radar detection equipment and microwave communication equipment. Furthermore, the folding combination door does not occupy the longitudinal outer surface of the vehicle-mounted shelter when open, effectively improving the overall performance of the vehicle-mounted shelter.

[0034] like Figure 6 and Figure 7 As shown, a method for opening and closing an electric tilting and folding combination door for a vehicle-mounted container includes the following different steps: A) opening the folding combination door and B) closing the folding combination door:

[0035] A) Open the folding combination door

[0036] A1) As Figure 6 As shown in A1, when the operator presses the "Folding Combination Door Opening" button on the remote control, the moving ends of a pair of top flip door electric push rods 3 are moved outward synchronously through the electronic control system. The top flip door 1 flips up and disengages from the top wall opening 101 and the upper part of the adjacent side wall opening 102. At this time, the angle β between the outer side of the side plate 11 of the top flip door 1 and the outer side of the side flip door 2 is less than 180°, thus completing the action of the top flip door 1 disengaging from the top of the cabin.

[0037] A2) such as Figure 6As shown in A2, the electronic control system then commands the moving ends of a pair of electric push rods 4 for the side-tilting doors to move outward synchronously, thereby pushing the top tilting door 1 and the side-tilting door 2 to rotate clockwise outward around the axis of the lower hinge 5, and the side-tilting door 2 begins to disengage from the side wall opening 102. When the angle α between the side-tilting door 2 and the side wall 105 of the container reaches 90-100°, the process transitions to the combined opening procedure (A3).

[0038] A3) such as Figure 6 As shown in A3, the electronic control system commands the moving ends of a pair of side-flipping door electric push rods 4 to move outward synchronously, while the moving ends of a pair of top-flipping door electric push rods 3 retract synchronously. As the side-flipping door 2 rotates clockwise outward around the axis of the lower hinge 6, the top-flipping door 1 rotates counterclockwise inward around the axis of the upper hinge 5, causing the top-flipping door 1 and the side-flipping door 2 to gradually overlap. When the angle α between the side-flipping door 2 and the sidewall 105 of the shelter reaches 140-150°, the top-flipping door 1 folds inward to a position parallel to the side-flipping door 2, to prevent the lower outer edge of the top-flipping door 1 from impacting the ground in the event of an accident. The moving ends of the pair of top-flipping door electric push rods 3 then stop moving, completing the opening action of the folding combination door.

[0039] B) Close the folding combination door

[0040] B1) such as Figure 7 As shown in B1, when the operator presses the "Folding Combination Door Close" button on the remote control, the side-flipping door 2 is instructed to flip and close counterclockwise through the electronic control system. The moving ends of a pair of side-flipping door electric push rods 4 retract in sync, thereby pushing the top flipping door 1 and the side-flipping door 2 to rotate counterclockwise around the lower hinge 6 axis. When the angle α between the side-flipping door 2 and the side wall 105 of the cabin reaches 90 to 100°, the process enters the composite closing procedure (B2).

[0041] B2) such as Figure 7 As shown in B2, the electronic control system commands the moving ends of a pair of side-tilting door electric push rods 4 to retract inward simultaneously, while the moving ends of a pair of top-tilting door electric push rods 3 move outward simultaneously. As the side-tilting door 2 rotates counterclockwise around the axis of the lower hinge 6 and folds inward, the top-tilting door 1 rotates clockwise around the axis of the upper hinge 5 and unfolds outward until the angle β between the outer side of the side panel 11 of the top-tilting door 1 and the outer side of the side-tilting door 2 is less than 180°, at which point the moving ends of the pair of top-tilting door electric push rods 3 stop moving. The moving ends of the pair of side-tilting door electric push rods 4 continue to retract inward synchronously, and the side-tilting door 2, along with the top-tilting door 1, continues to rotate counterclockwise and fold inward until the side-tilting door 2 is closed in place. At this point, when the tilted top-tilting door 1 is above the opening 101 in the cabin top wall, the moving ends of the pair of side-tilting door electric push rods 3 stop moving.

[0042] B3) Figure 7As shown in B3, the electronic control system commands the moving ends of a pair of electric push rods 3 for the top-hinged door to retract synchronously, pulling the top-hinged door 1 to rotate counterclockwise around the axis of the upper hinge 5, gradually closing the top wall opening 101 until the top-hinged door 1 is completely closed. At this point, the outer side of the side plate 11 of the top-hinged door 1 is flush with the outer side of the side-hinged door 2, completing the closing operation of the folding combination door. The closing of the top-hinged door 1 is carried out in two steps, which can effectively prevent the impact energy of the large-mass top-hinged door 1 and the side-hinged door 2 closing at a large angle from damaging the top wall opening 101, thus improving the reliability of the invention.

[0043] The opening and closing operation of the folding combination door of the present invention can be carried out continuously with one-button operation, with a high degree of automation.

[0044] In addition to the above embodiments, the present invention may have other implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the protection scope claimed by the present invention.

Claims

1. A vehicle-mounted modular cabin electric tilting and folding combination door, characterized in that, The system includes a top-hinged door, a side-hinged door, a pair of electric actuators for the top-hinged door, and a pair of electric actuators for the side-hinged door. The shape of the top-hinged door matches the shape of the top wall opening and the upper part of the adjacent side wall opening of the vehicle-mounted container. The shape of the side-hinged door matches the shape of the lower part of the side wall opening. The lower side of the top-hinged door and the upper side of the side-hinged door are hinged together by several built-in upper hinges. The bottom of the side-hinged door and the container floor below the side wall opening are hinged together by several lower hinges. The fixed end hinges of the pair of electric actuators for the top-hinged door are respectively hinged to the fixed ends of the electric actuators for the top-hinged door, which are symmetrically fixed at the middle of both ends of the inner side of the side-hinged door. The top-flipping door electric push rod moving end hinge lugs are respectively hinged to the top-flipping door electric push rod moving end hinge seats symmetrically fixed at both ends of the inner side of the top-flipping door; the side-flipping door electric push rod fixed end hinge lugs are respectively hinged to the side-flipping door electric push rod fixed end hinge seats symmetrically fixed at the upper end of the upright plate; the upper and lower ends and one side of the upright plate are respectively perpendicularly fixed to the longitudinal ends of the top wall opening, the container floor and the longitudinal ends of the side wall opening; the side-flipping door electric push rod moving end hinge lugs are respectively hinged to the side-flipping door electric push rod moving end hinge seats symmetrically fixed at both ends of the inner side of the side-flipping door.

2. The vehicle-mounted modular cabin electric tilting and folding combination door according to claim 1, characterized in that, The top flip door is a right-angled structure with the top plate and side plate vertically connected. The top plate is a combination of a trapezoid at the top and a rectangle at the bottom, and the side plate is rectangular. The lower side of the right-angled structure's side plate is hinged to the upper side of the side flip door through several spaced-apart built-in hinges.

3. The vehicle-mounted modular cabin electric tilting and folding combination door according to claim 1, characterized in that, The hinge seat of the fixed end of the top flip door electric push rod is an L-shaped hinge seat. The base plate of the L-shaped hinge seat is fixed to the upper end of the vertical plate. A pair of hinge plates of the L-shaped hinge seat are fixed on the vertical plate of the L-shaped hinge seat. The hinge lug of the moving end of the side flip door electric push rod is inserted between the pair of hinge plates and hinged to the pair of hinge plates.

4. The vehicle-mounted modular cabin electric tilting and folding combination door according to claim 1, characterized in that, A sealing device is provided between the edge of the top wall opening and the edge of the top plate of the adjacent top flip door. The sealing device includes a multi-tooth sealing edge embedded and fixed on the edge of the top plate of the top flip door, and a hollow ring sealing edge embedded and fixed on the asymmetrical groove-shaped bent edge on the lower side of the top wall opening. When the top flip door is closed, the tips of the teeth of the multi-tooth sealing edge of the top flip door abut against the profile of the top wall opening edge, and the upper side of the hollow ring sealing edge abuts against the lower side of the top flip door edge adjacent to the top wall opening.

5. A method for opening and closing an electric tilting and folding combination door for a vehicle-mounted container according to any one of claims 1 to 4, comprising the following steps: A) opening the folding combination door and B) closing the folding combination door: A) Open the folding combination door A1) When the operator presses the "Folding Combination Door Opening" button on the remote control, the electric push rods of a pair of top flip doors are moved outward synchronously through the electronic control system. The top flip doors flip up and disengage from the top wall opening and the upper part of the adjacent side wall opening. At this time, the angle β between the outer side of the side panel of the top flip door and the outer side of the side flip door is less than 180°, thus completing the action of the top flip door disengaging from the top of the cabin. A2) Then the electronic control system commands the moving ends of a pair of side-tilting door electric push rods to move outward synchronously, thereby pushing the top tilting door and the side tilting door to rotate clockwise around the lower hinge axis and tilt outward, and the side tilting door begins to disengage from the cabin side wall opening; when the angle α between the side tilting door and the side wall reaches 90 to 100°, it enters the A3) compound opening procedure. A3) The electronic control system commands the moving ends of a pair of side-flipping door electric push rods 4 to move outward synchronously, while the moving ends of a pair of top-flipping door electric push rods retract synchronously. As the side-flipping door rotates clockwise around the lower hinge axis and flips outward, the top-flipping door rotates counterclockwise around the upper hinge axis and flips inward, causing the top-flipping door and the side-flipping door to gradually overlap. When the angle α between the side-flipping door and the side wall reaches 140-150°, the top-flipping door folds inward to a position parallel to the side-flipping door, and the moving ends of the pair of top-flipping door electric push rods stop moving, completing the opening action of the folding combination door. B) Close the folding combination door B1) When the operator presses the "Folding Combination Door Close" button on the remote control, the side-tilting door is instructed to turn counterclockwise and close through the electronic control system. The moving ends of a pair of electric push rods of the side-tilting door retract in sync, thereby pulling the top-tilting door and the side-tilting door to rotate counterclockwise around the lower hinge axis. When the angle α between the side-tilting door and the side wall of the cabin reaches 90 to 100°, the process enters the B2) composite closing procedure. B2) The electronic control system commands the moving ends of a pair of electric push rods for the side-tilting doors to retract inwards simultaneously, while the moving ends of a pair of electric push rods for the top-tilting doors move outwards simultaneously. As the side-tilting doors rotate counterclockwise around the lower hinge axis and fold inwards, the top-tilting doors rotate clockwise around the upper hinge axis and fold outwards until the angle β between the outer side panel of the top-tilting door and the outer side panel of the side-tilting door is less than 180°. At this point, the moving ends of the electric push rods for the top-tilting doors stop moving. The moving ends of the electric push rods for the side-tilting doors continue to retract inwards in sync, and the side-tilting doors, along with the top-tilting doors, continue to rotate counterclockwise and fold inwards until the side-tilting doors are closed in place. At this point, when the tilted top-tilting door is above the opening in the cabin top wall, the moving ends of the electric push rods for the side-tilting doors stop moving. B3) The electronic control system commands the moving ends of the electric push rods of the top tilting door to retract in sync, pulling the top tilting door to rotate counterclockwise around the upper hinge axis to gradually close the opening in the cabin top wall until the top tilting door is completely closed. At this time, the outer side of the side panel of the top tilting door is flush with the outer side of the side tilting door, completing the operation of closing the folding combination door.

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