Extended motor home carriage

Abstract

The utility model relates to the technical field of limousines, in particular to an extended limousine compartment which comprises an extensible limousine body container, a movable platform and an extensible rotary bin which can be mutually combined in position to quickly form an extended space. The front fixed baffle is hinged to the two front baffles, the front baffles can rotate by 90 degrees around hinge connecting shafts of the front baffles and the front fixed plate, and the front baffles are used as the front baffles for expanding the space, the rear fixed baffle is hinged to the two rear baffles, the rear baffles can rotate by 90 degrees around hinge connecting shafts of the rear baffles and the rear fixed plate, and the L-shaped baffles can rotate by 90 degrees around hinge connecting shafts of the rear baffles and the rear fixed plate. And the rear baffle is used for expanding the space. The movable platform and the tail plate are horizontally hinged to the compartment bottom plate through the rear fixing plate, and horizontal positioning is ensured to be opened through rotary positioning; according to the extensible rotary bin, the rotary bin with the 90-degree fan-shaped section is hinged to the rear fixing plate, the rotary bin can rotate by about 180 degrees, and an extension space is rapidly formed.

Description

Technical Field

[0001] The utility model relates to a recreational vehicle compartment, in particular to a recreational vehicle compartment which can greatly and quickly expand the usable space inside the vehicle. Background Art

[0002] As living standards improve, enjoying a leisurely life in an RV, parked on a beach, meadow, or forest far from the city, has become a dream for many middle-class citizens. However, existing RVs lack both transport flexibility and interior space. The limited interior space is limited by the vehicle's exterior dimensions, hindering their practical use. Summary of the Invention

[0003] The technical solution adopted by the present invention to solve its technical problems is: by adding a rotatable upper baffle, front baffle, rear baffle and L-shaped baffle to the vehicle body cargo box. By combining the mutual positions of the upper baffle, front baffle, rear baffle and L-shaped baffle, the vehicle body can be expanded. The tailgate is flipped to realize the expansion platform, and the rotating bin is rotated 180 degrees to expand a relatively independent operating room. The upper baffle, front baffle, rear baffle and L-shaped baffle are combined with each other to quickly form an expanded vehicle body. At the same time, the tailgate is flipped to form a platform, and then the rotating bin is rotated 180 degrees to expand a relatively independent space. In this way, by combining the mutual positions of the upper baffle, front baffle, rear baffle and L-shaped baffle, the tailgate is flipped, and the rotating bin is rotated 180 degrees to expand, quickly forming an expanded vehicle body.

[0004] The front fixing plate is perpendicular to the upper fixing plate, the upper fixing plate is perpendicular to the rear fixing plate, the rear fixing plate is perpendicular to the box bottom plate, and the box bottom plate is perpendicular to the front fixing plate, and they are fixed to each other to form a carriage body.

[0005] The front baffle and the front fixed baffle are hinged and driven by their hydraulic cylinders. A triangular positioning block is provided between the front baffle and the front fixed baffle to ensure that the rear range is 90 degrees.

[0006] The rear baffle and the rear fixed baffle are hinged and driven by their hydraulic cylinders. A triangular positioning block is provided between the rear baffle and the rear fixed baffle to ensure that the rear range is 90 degrees.

[0007] The L-shaped baffle and the compartment bottom plate are hinged and driven by hydraulic cylinders on both sides thereof, and the outer plane and the inner plane of the L-shaped baffle are perpendicular to each other.

[0008] The upper baffle and the upper fixed plate are hinged and driven by hydraulic cylinders, pull rods and levers on both sides to rotate 180 degrees.

[0009] The dimensions between the left front baffle, right front baffle, left rear baffle, right rear baffle, left L-shaped baffle, right L-shaped baffle, left upper baffle, right upper baffle, front fixing plate, upper fixing plate and rear fixing plate must conform to the matching relationship shown in the figure.

[0010] A positioning block is processed at the lower outer sides of the two front and rear baffles and the lower outer sides of the two rear baffles to support the L-shaped baffle so that it plays a positioning role when it is in the open state.

[0011] The tail plate and the bottom plate of the vehicle body are hinged and driven by their hydraulic cylinders.

[0012] The rotating bin with a 90-degree fan-shaped cross section is hinged to the rear fixed plate and driven by a hydraulic cylinder, a pull rod and a lever to rotate 180 degrees, thereby expanding a relatively independent space.

[0013] The beneficial effects of the present invention are as follows: When the RV is in camp, the upper, front, rear, and L-shaped panels rotate and position themselves to quickly form an expanded compartment. Simultaneously, the tailgate flips over to form a platform. The rotating compartment then rotates 180 degrees, creating a relatively sealed, independent space, expanding the space several times to form a standard double room. Furthermore, while the vehicle is in motion, the upper, front, rear, and L-shaped panels, along with the extended tailgate and tailgate, and the rotating compartment rotate about their respective hinges to return the vehicle to its original dimensions, allowing it to be legally driven on the road. This allows the RV to expand its usable area by up to four times, and can be expanded and retracted in tens of seconds. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 When the vehicle is moving, the left and right upper fenders, left and right front fenders, left and right rear fenders, and left and right L-shaped fenders rotate and reset via their respective hinges. The tailgate and the rotating compartment rotate and reset. A three-dimensional diagram of the original outer dimensions of the vehicle body is shown, with the view in the A direction enlarged to show the drive status of the tailgate and tailgate hydraulic cylinder.

[0015] Figure 2 During the expansion process of the vehicle body, the left and right front fenders are driven by their hydraulic cylinders to rotate 90 degrees around the hinge axis between them and the front fixed plate, and are in a position parallel to the front fixed plate. At the same time, the left and right rear fenders are driven by their hydraulic cylinders to rotate around the hinge axis between them and the rear fixed plate, and are also in a three-dimensional view of the position parallel to the front fixed plate.

[0016] Figure 3 During the expansion process of the vehicle body, the left and right L-shaped baffles are driven by four hydraulic cylinders to rotate 90 degrees around the hinge axis with the car floor in sequence (left first and right later), forming a three-dimensional image of the expanded bottom and outer baffles.

[0017] Figure 4During the vehicle body extension process, the upper baffles, driven by hydraulic cylinders, rotate sequentially around their hinges with the upper fixed plate, positioning them parallel to the upper fixed plate. (A three-dimensional view of the vehicle after expansion.) The two upper baffles are deployed, covering both sides of the expanded vehicle body. The tailgate flips over to form a platform, which then rotates 180 degrees through a rotating chamber, creating a relatively independent space.

[0018] Figure 5 A bottom view from the vehicle bottom shows the left front and left rear fenders opening and the right front and right rear fenders closing under hydraulic pressure. The image zooms in on the gaps between the right front fender, right L-shaped fender, and the chassis floor. In actual use, the right front, right rear, left front, and left rear fenders are opened and closed simultaneously by hydraulic pressure; the images are for ease of illustration and comparison only.

[0019] Figure 6 Viewed from the front to the back, the interior of the vehicle is shown with the cab, front fixed panel, and left front tailgate removed. The left rear tailgate is open, the right rear tailgate is closed, the left L tailgate is open, and the right L tailgate is closed.

[0020] Figure 7 A cross-section of the vehicle body viewed from front to back. In the figure, the two front tailgates are open, the two rear tailgates are open, the two L-shaped tailgates are open, the left upper tailgate is open and extends outward, and the right upper tailgate is closed and remains on the upper fixed plate.

[0021] Figure 8 The appearance of the vehicle body in different states. Figure A: left front fender, left rear fender, left L-shaped fender, right L-shaped fender, appearance after removal; Figure B: left front fender, left rear fender, appearance after removal; Figure C: left front fender, appearance after removal; Figure D: left front fender, left L-shaped fender, appearance after removal.

[0022] Figure 9 Cut the left rear baffle and the left L-shaped baffle, and see the different views shown below. The L-shaped baffle has two notches at the hinge positions of the front and rear baffles to avoid interference with the hinges of the front and rear baffles during rotation. Figure A shows the left rear baffle and the left L-shaped baffle both in the open state, Figure B shows the left rear baffle open and the left L-shaped baffle folded in, and Figure C shows the left rear baffle and the left L-shaped baffle both in the folded state.

[0023] Figure 10 Viewed from the front to the back, the upper left baffle is shown flipped 180 degrees by the hydraulic cylinder.

[0024] Figure 11 Looking down, the rotating bin is shown flipping 180 degrees driven by a hydraulic cylinder.

[0025] Figure 12 The hinge conditions of each baffle: A: two baffles are in a straight line, B: two baffles are rotated 90 degrees, C: two baffles are rotated 180 degrees.

[0026] 1 Left front tailgate, 2 Right front tailgate, 3 Left rear tailgate, 4 Right rear tailgate, 5 Left L-shaped tailgate, 6 Right L-shaped tailgate, 7 Left upper tailgate, 8 Right upper tailgate, 9 Front fixed plate, 10 Upper fixed plate, 11 Rear fixed plate, 12 Tailgate, 13 Rotating bin, 14 Cab, 15 Frame, 16 Front wheel, 17 Rear wheel, 19 Carriage floor, 21 Front tailgate hydraulic cylinder, 22 Rear tailgate hydraulic cylinder, 24 L-shaped tailgate hydraulic cylinder, 26 Upper tailgate hydraulic cylinder, 27 Upper tailgate pull rod, 28 Upper tailgate lever, 30 Tailgate hydraulic cylinder, 32 Rotating bin hydraulic cylinder, 33 Rotating bin pull rod, 34 Rotating bin lever, 35 tailgate swing arm, 36 rotating bin hydraulic cylinder hinge seat, 37 rotating bin lever hinge seat, 40 triangular locating block, 41 locating block, 45 reinforcing rib, 46 hinge lifting ear, 49 tailgate hinge mounting block, 50 upper baffle and upper fixed plate sealing strip, 60 hinge, 90 tailgate locating piece, 91 L-type baffle locating piece, 95 rotating bin locating block, (in order to simplify the labeling and facilitate understanding, the hydraulic cylinder number of each baffle is the same regardless of left and right, and the four driving mechanisms of the upper baffle also use the same number, and the four driving hydraulic cylinders and driving mechanisms of the L-type baffle use the same number). DETAILED DESCRIPTION

[0027] like Figures 1 to 12 As shown, by adding a rotatable left front baffle 1, right front baffle 2, left rear baffle 3, right rear baffle 4, left L-shaped baffle 5, right L-shaped baffle 6, left upper baffle 7, and right upper baffle 8 to the cargo box, the vehicle body can be expanded by adjusting the relative positions of the upper baffle, front baffle, rear baffle, and L-shaped baffle. The tailgate 12 is flipped to form an expansion platform, and the rotating compartment 13 rotates 180 degrees to expand a relatively independent operating room. In this way, by adjusting the relative positions of the upper baffle, front baffle, rear baffle, and L-shaped baffle, the tailgate is flipped, and the rotating compartment rotates 180 degrees to expand, quickly forming an expansion space.

[0028] The front fixed plate 9 is perpendicular to the upper fixed plate 10, the upper fixed plate is perpendicular to the rear fixed plate 11, the rear fixed plate is perpendicular to the box bottom plate 19, the box bottom plate is perpendicular to the front fixed plate, and they are fixed to each other to form the main body of the carriage. The rear fixed plate 11 has a door frame to accommodate the rotating warehouse 13 through the rear fixed plate. The thickness of the threshold below the door frame is the same as the thickness of the box bottom plate, and the entire bottom is flat.

[0029] The left front baffle 1 and the front fixed baffle 9 are connected by a hinge and driven by a hydraulic cylinder 21. The hydraulic cylinder is located below the floor of the vehicle body. The movable cylinder of the hydraulic cylinder is hinged to the left front baffle 1, and the fixed cylinder of the hydraulic cylinder is hinged to the floor of the vehicle body 19. The right front baffle 2 and the front fixed baffle 9 are connected by a hinge and driven by a hydraulic cylinder 21. The hydraulic cylinder is located below the floor of the vehicle body. The movable cylinder of the hydraulic cylinder is hinged to the right front baffle 2, and the fixed cylinder of the hydraulic cylinder is hinged to the floor of the vehicle body 19. There are triangular positioning blocks between the two front baffles and the front fixed baffle to ensure that they are 90 degrees to the center thread of the vehicle after unfolding. When the left front baffle and the right front baffle are folded, they press the L-shaped baffle that has been vertically folded to achieve positioning when folded.

[0030] The left rear baffle 3 and the rear fixed baffle 11 are connected in a hinge manner and driven by their hydraulic cylinders 22. The hydraulic cylinders are located below the floor of the vehicle body. The movable cylinder of the hydraulic cylinder is hinged to the left rear baffle 3, and the fixed cylinder of the hydraulic cylinder is hinged to the floor of the vehicle body 19. The right rear baffle 4 and the rear fixed baffle 11 are connected in a hinge manner and driven by their hydraulic cylinders 22. The hydraulic cylinders are located below the floor of the vehicle body. The movable cylinder of the hydraulic cylinder is hinged to the right rear baffle 4, and the fixed cylinder of the hydraulic cylinder is hinged to the floor of the vehicle body 19. There are triangular positioning blocks between the two rear baffles and the rear fixed baffle to ensure that they are 90 degrees to the center line of the vehicle after unfolding. When the left and right rear baffles are folded, they press the L-shaped baffle that has been vertically folded to achieve positioning when folded.

[0031] The left L-shaped baffle 5 is connected to the compartment bottom plate 19 by a hinge connection and is driven by the hydraulic cylinders 24 on both sides. The movable cylinder of the hydraulic cylinder is hinged to the left L-shaped baffle 5 through a reinforcing rib 45, and the fixed cylinder of the hydraulic cylinder is hinged to the fixed plate 10 through a hinge lug 46. The right L-shaped baffle 6 is connected to the compartment bottom plate 19 by a hinge connection and is driven by the hydraulic cylinders 24 on both sides. The movable cylinder of the hydraulic cylinder is hinged to the right L-shaped baffle 6 through a reinforcing rib 45, and the fixed cylinder of the hydraulic cylinder is hinged to the fixed plate 10 through a hinge lug 46. Reinforcing ribs 45 are provided on both sides of the hydraulic cylinder 24 to improve the bending capacity of the two L-shaped baffles. When the L-shaped baffles are folded, two notches are opened at the front and rear baffle hinge positions. Each L-shaped baffle has four notches at the front and rear to avoid interference with the front and rear baffle hinges during rotation. The L-shaped baffle positioning pieces are installed on both sides of the L-shaped baffle. When the L-shaped baffle is folded, it is opposite to the position of the upper fixed plate and staggered with the hinge of the upper baffle. When the L-shaped baffle is folded, the positioning piece presses the upper fixed plate. The thickness of the positioning piece is the radius of the hinge chain. The verticality of the L-shaped baffle after folding is achieved with the upper fixed plate 10 as the benchmark. The positioning principle of the left and right L-shaped baffles is the same. The two plate surfaces of the left L-shaped baffle are perpendicular to each other, and the two plate surfaces of the right L-shaped baffle are perpendicular to each other.

[0032] The upper left baffle 7 is connected to the upper fixed plate 10 by a hinge, and is driven by the hydraulic cylinders 26, pull rods 27 and levers 28 on both sides to rotate 180 degrees. The upper right baffle 8 is connected to the upper fixed plate 10 by a hinge, and is driven by the hydraulic cylinders 26, pull rods 27 and levers 28 on both sides to rotate 180 degrees. One end of the upper baffle pull rod is hinged to the upper baffle, and the other end is hinged to the upper baffle lever. The other end of the upper baffle lever is hinged to the front (rear) fixed plate. The upper baffle pull rod is hinged to the upper baffle lever and then hinged to the hydraulic cylinder moving rod. The hydraulic cylinder fixed rod is hinged to the front (rear) fixed plate. There are a total of 4 mechanisms, which drive the two upper baffles to rotate respectively. The cross-section of the two upper baffles is a narrow strip of right-angled triangle. When unfolded, the short right-angled side is straight (the thickness of the upper baffle is the short right-angled side) and the long right-angled side is horizontal and at the bottom. The hinge between the upper fixed plate 10 is installed at the intersection of the plane where the hypotenuse is located and the upper fixed plate, as shown in the figure. Figure 4 .

[0033] When the right upper baffle 8 is retracted, it presses against the upper fixing plate 10 to achieve positioning. When the left upper baffle 7 is retracted, it presses against the right upper baffle 8 to achieve positioning. When the right upper baffle 8 is opened, it presses against the top edge of the right front baffle 2, the top edge of the right L-shaped baffle 6, and the top edge of the right rear baffle 4 to achieve positioning. When the left upper baffle 7 is opened, it presses against the top edge of the left front baffle 1, the top edge of the left L-shaped baffle 5, and the top edge of the left rear baffle 3 to achieve positioning.

[0034] The upper fixed plate 10 and the left and right upper baffles are opened and the butt joint surface is provided with a sealing strip 50, which is installed in the grooves on both sides of the upper fixed plate 10. After the upper fixed plate and the upper baffle are opened, the sealing strip is pressed tightly to achieve sealing. When the weather is good, the upper baffle can be opened unilaterally for lighting, such as Figure 7 As shown, the baffles on both sides can also be stacked and the lighting can be turned on at the same time, such as Figure 3 As shown, it is completely closed when it rains, such as Figure 4 shown.

[0035] A positioning block 41 is machined at the lower outer sides of the two front baffles and the lower outer sides of the two rear baffles to support the L-shaped baffles, which play a positioning role when the L-shaped baffles are in the open state.

[0036] Two 35 tailgate swing arms are installed on the tailgate 12, and two tailgate hinge mounting blocks 49 are fixed below the rear end of the rear fixed plate 11. The thickness is the hinge radius of the tailgate. The tailgate 12 is hinged with the two tailgate hinge mounting blocks, and the tailgate hinge mounting blocks are then fixed to the rear fixed plate 11. Figure 1 A-axis zoom and Figure 5 The tailgate hinge mounting block 49 can prevent mechanical interference and ensure that the tailgate is vertical when folded.

[0037] The tailgate 12 is driven by its hydraulic cylinder 30, which is located below the bottom plate of the box and on both sides of the frame. The movable cylinder of the hydraulic cylinder is hinged to the tailgate swing arm 35, and the fixed cylinder of the hydraulic cylinder is hinged to the frame 15. Figure 1 As shown in the center A direction, the shape of the tailgate's lower arm matches the box floor. This ensures that when the tailgate is opened, the lower arm can press against the box floor, playing a positioning role and ensuring the horizontal position of the tailgate after opening. 90 tailgate positioning pieces are installed on both sides of the 11 rear fixed plate. When folded, the tailgate positioning pieces only press the tailgate. The thickness of the tailgate positioning pieces is the hinge diameter. The tailgate is vertical when folded, with the 11 rear fixed plate as the reference.

[0038] The rotating warehouse 13 with a 90-degree fan-shaped cross section is hinged with the rear fixed plate 11, and is driven by a hydraulic cylinder 32 installed at the lower rear part of the upper fixed plate 10, a rotating warehouse pull rod 33 and a rotating warehouse lever 34 to rotate 180 degrees, which can expand a relatively independent space. One end of the rotating warehouse pull rod is hinged to the rotating warehouse, and the other end is hinged to the rotating warehouse lever. The other end of the rotating warehouse lever is hinged to the 37 rotating warehouse lever hinge seat, and the 37 rotating warehouse lever hinge seat is fixed to the upper fixed plate. The rotating warehouse pull rod is hinged to the rotating warehouse lever and then hinged to the hydraulic cylinder moving rod. The hydraulic cylinder fixed rod is hinged to the 36 rotating warehouse hydraulic cylinder hinge seat, and the 36 rotating warehouse hydraulic cylinder hinge seat is fixed to the upper fixed plate. There is a rotating warehouse positioning block 95 at the right rear of the box bottom plate 19, as shown in FIG. Figure 4 After the rotating bin 13 is recovered, the lower floor of the rotating bin 13 presses against the rotating bin positioning block 95, so that the rotating bin door is parallel to the vehicle body. Figure 3 As shown, the angle control and position fixing of the rotating chamber 13 are realized when the rotating chamber 13 is folded. Figure 4 As shown, the rotating bin 13 presses against the triangular positioning block on the right side of the rear fixed baffle 11, achieving angle control and positional fixation when the rotating bin 13 is turned outward. Thus, the rotating bin 13 achieves a limited rotation angle under the constraints of the rotating bin positioning block 95 and the triangular positioning block on the right side of the rear fixed baffle 11. A gap between the bottom of the rotating bin 13 and the bottom plate of the box body is required. The gap is sized to the diameter of the tailgate hinge. This ensures that the rotating bin does not hit the tailgate hinge during rotation, causing mechanical interference.

[0039] like Figure 12 The hinge conditions of each baffle. A shows the two baffles aligned, B shows the two baffles rotated 90 degrees, and C shows the two baffles rotated 180 degrees. The hinge uses the most commonly used cylindrical hinge, installed on one side of the baffle, which can achieve a large relative rotation angle. As shown in Figure B, when the two baffles are rotated 90 degrees, a gap is created between the side of the baffle and the upper surface of the other baffle. This gap is the hinge radius. When the two baffles are rotated 180 degrees, a gap is created between the upper surface of the baffle and the upper surface of the other baffle. This gap is the hinge diameter.

[0040] 5 left L-shaped baffle, 6 right L-shaped baffle, respectively, with 19 box bottom plate hinge connection, rotate 90 degrees, the state is converted between AB, so that the upper surface of the L-shaped baffle and the side of the box bottom plate have a gap, the gap is the hinge radius, such as Figure 1 Zoom in display.

[0041] 1 left front baffle, 2 right front baffle, 3 left rear baffle, 4 right rear baffle, 5 left L-shaped baffle, 6 right L-shaped baffle, 12 tail board, the working conditions are the same, the working range is 90 degrees, the working conditions of the hinges are as follows Figure 12 A and B in the middle, 7 left upper baffle, 8 right upper baffle, 13 rotating bin, the working range is 180 degrees, the working condition of the hinge is as follows Figure 12 A and C in the middle.

[0042] Deployment process: When the original state is transformed into the expanded state, first, the left front fender 1 and the right front fender 2 are driven by their hydraulic cylinders 21 to rotate 90 degrees around the hinge axis with the front fixed plate 9. At the same time, the left rear fender 3 and the right rear fender 4 are driven by their hydraulic cylinders 22 to rotate 90 degrees around the hinge axis with the rear fixed plate 11. Under the action of the triangular positioning blocks, the two front fenders and the two rear fenders are simultaneously perpendicular to the vehicle body beam, serving as the front and rear fenders of the expanded space. Figures 1 to 2 As shown. Then, driven by the hydraulic cylinder 24, the left L-shaped baffle 6 rotates 90 degrees around the hinge axis with the car floor between the mutually parallel left front baffle and the left rear baffle. Subsequently, driven by the hydraulic cylinder 24, the right L-shaped baffle 5 rotates 90 degrees around the hinge axis with the car floor between the mutually parallel right front baffle and the right rear baffle. At this time, the front and rear outer sides of the L-shaped baffles on both sides are supported on the positioning blocks 41 of the front and rear baffles respectively, playing a positioning role to ensure that the bottom of the L-shaped baffle is in a horizontal position after expansion. In this way, the left and right L-shaped baffles serve as the outer bottom of the two sides of the expansion space and the left and right baffles. Figure 3 As shown. Finally, driven by the hydraulic cylinder 26, the pull rod 27 and the lever 28, the left upper baffle 7 rotates 180 degrees around the hinge axis with the upper fixed plate and is placed in a horizontal position. Subsequently, driven by the hydraulic cylinder 26, the pull rod 27 and the lever 28, the right upper baffle 8 also rotates 180 degrees around the hinge axis with the upper fixed plate and is placed in a horizontal position. At this time, the two upper baffles are placed flat on the top of the car body, serving as the top of the expansion box, as shown. Figure 4 Then, the tailgate 12 is driven by the hydraulic cylinder 30 to rotate downward 90 degrees and is in a horizontal state, so that the tailgate forms a movable platform, as shown in FIG. Figure 4 Then, the rotating chamber 13 with a 90-degree fan-shaped cross section rotates about 180 degrees around its hinge with the rear fixed plate under the drive of the hydraulic cylinder 32, the pull rod 33 and the lever 34, expanding a relatively independent space that can be used for cleaning and other purposes to achieve dry and wet separation. Figure 4 shown.

[0043] Folding process: The unfolded state is as follows: Figure 4 , driven by the hydraulic cylinder 32, the pull rod 33 and the lever 34, the rotating chamber 13 rotates about 180 degrees around the hinge with the rear fixed plate, and the rotating chamber 13 rotates back into the vehicle body. Then, the tailgate 12 rotates 90 degrees under the drive of the hydraulic cylinder 30, perpendicular to the ground. Subsequently, the right upper baffle 8 rotates 180 degrees around the hinge axis with the upper fixed plate 10 under the drive of the hydraulic cylinder 26, the pull rod 27 and the lever 28, and is placed in a horizontal position. Subsequently, the left upper baffle 7 also rotates 180 degrees around the hinge axis with the upper fixed plate 10 under the drive of the hydraulic cylinder 26, the pull rod 27 and the lever 28, and is placed in a horizontal position. The left upper baffle 7 and the right upper baffle 8 are stacked on top of the upper fixed plate 10, as shown in FIG. Figure 3 The left and right upper baffles are narrow triangles in cross section, and the two upper baffles are stacked flat on the upper fixed plate 10. Then, the right L-shaped baffle 5 is driven by the hydraulic cylinder 24 to rotate 90 degrees around the hinge axis with the car floor. Subsequently, the left L-shaped baffle 6 is driven by the hydraulic cylinder 24 to rotate 90 degrees around the hinge axis with the car floor. Figure 2 Finally, the left front baffle 1 and the right front baffle 2 rotate 90 degrees around the hinge axis with the front fixed plate 9 driven by their hydraulic cylinders 21, and at the same time, the left rear baffle 3 and the right rear baffle 4 also rotate 90 degrees around the hinge axis with the rear fixed plate 11 driven by their hydraulic cylinders 22, as shown. Figure 1 .

[0044] To facilitate calculation and processing, the left front baffle, right front baffle, left rear baffle, right rear baffle, two surfaces of the left L-shaped baffle, two surfaces of the right L-shaped baffle, left upper baffle, right upper baffle, front fixed plate, upper fixed plate, rear fixed plate, tail plate and box bottom plate have the same thickness.

[0045] In order to facilitate calculation and processing, the hinge sizes of the left front baffle, right front baffle, left rear baffle, right rear baffle, left L-shaped baffle, right L-shaped baffle, left upper baffle, right upper baffle, rotating bin and tail plate are the same.

[0046] Preferably, the widths of the left front baffle 1 , the right front baffle 2 , the left rear baffle 3 , and the right rear baffle 4 are to match the height of the two L-shaped baffles when they are folded (that is, the width of the two L-shaped baffles when they are opened).

[0047] The heights of the left front baffle 1, the right front baffle 2, the left rear baffle 3, and the right rear baffle 4 are to match the widths of the two L-shaped baffles when they are folded (that is, the heights of the two L-shaped baffles when they are opened).

[0048] The height of the two L-shaped baffles when folded (that is, the width of the two L-shaped baffles when opened) matches the width of the upper baffle that will eventually be expanded and opened.

[0049] The left L-shaped baffle 5 is higher than the right L-shaped baffle 6. The height difference is the thickness of the plate, which ensures that they will not intersect and interfere when they are in the retracted state. Figure 1 and Figure 2 As shown. Since the left L-shaped baffle 5 is higher than the right L-shaped baffle 6, the left side expansion compartment before folding will also be wider than the right side expansion compartment. The width difference is the thickness of the baffle. The corresponding left front baffle 1 and left rear baffle 3 will be wider than the corresponding right front baffle 2 and right rear baffle 4. The width difference is the thickness of the baffle.

[0050] The upper fixed plate is as wide as the bottom plate of the box, the front fixed plate is as wide as the rear fixed plate, the side ends of the front fixed plate are higher than the side ends of the upper fixed plate and the side ends of the box bottom, and the height difference is the plate thickness. The outer side ends of the rear fixed plate are higher than the side ends of the upper fixed plate and the side ends of the box bottom, and the height difference is the plate thickness to accommodate the retracted L baffle. At the same time, in order to facilitate processing and assembly and prevent mechanical movement interference, the above height difference is increased, and the increased value is the hinge radius, such as Figure 5 Zoom in display.

[0051] The upper fender and upper fixed plate cover the entire roof, and their length is equal to the length of the car body.

[0052] The left front baffle, right front baffle, left rear baffle, right rear baffle, left L-shaped baffle, and right L-shaped baffle, the upper edges of the six baffles are chamfered to facilitate drainage.

[0053] The rotary chamber 13 rotates 90 degrees and when it is in the middle position, it can be used as a compartment door to close the entrance and exit.

[0054] When unfolding and folding, you must strictly follow the above sequence, otherwise the relevant parts will be damaged.

[0055] Based on the movement and relative position of each baffle, the dimensions of the left front baffle, right front baffle, left rear baffle, right rear baffle, left L-shaped baffle, right L-shaped baffle, left upper baffle, right upper baffle, front fixed plate, upper fixed plate, rear fixed plate, and body floor must conform to a specific relationship to ensure that mechanical motion interference does not occur during the opening and closing of the car body. The cross-section of the upper baffle is a narrow right triangle. When unfolded, the long right-angled side is horizontal and downward, and the short right-angled side is straight. The length of the short right-angled side is equal to the thickness of the board.

[0056] The length of the upper left baffle is L, the width is W, the thickness is h, the hinge radius is R, and the height of the front fixed plate is H. According to the relationship between the figures, Figure 1 and Figure 7=The width of the left L-shaped baffle after opening is equal to the width of the left upper baffle, which is W. The dimensional relationship must meet two conditions: 1: Since the L-shaped baffle is at the top of the exterior of the car body after folding, its folded height must meet the following relationship: the height of the folded left L-shaped baffle (the width of the left L-shaped baffle after opening) is greater than (the height of the front fixed plate + the thickness of the upper fixed plate + the thickness of the left upper baffle + the thickness of the right L-shaped baffle + the thickness of the left L-shaped baffle + the hinge diameter - the thickness of the car body bottom plate - the hinge radius), that is, W>(H+h+h+h+h+R+RhR), that is, W>H+3*h+R, that is, W>H+3*h+R, that is, the overall height of the car body cannot be too high, otherwise the upper baffle after side expansion will not have enough width to cover the entire roof, 2: According to Figure 1 , the sum of the widths of the left front baffle and the left rear baffle is less than the length of the L-shaped baffle. The hinge clearance must also be considered, otherwise the two baffles will touch each other when folded, that is, (L-2*h)> (2(Wh)+2R), which is L> (2W+2R). The compartment body cannot be too short, otherwise the left front baffle and the left rear baffle will touch each other when folded.

[0057] The external dimensions of this extended RV are determined by the size of the left upper baffle and the hinge size, which can be integers, to determine the front fixed plate height H, the upper fixed plate length L and the sizes of other components, and to ensure that no mechanical movement interference occurs during the opening and folding process.

[0058] Let the length of the upper left baffle be L, the width be W, the thickness be h, the hinge radius be R, and the height of the front fixed plate be H. From the relationships in the figures, we can obtain: the width of the left L-shaped baffle after opening is equal to the width of the upper left baffle, and the width of the right L-shaped baffle after opening is equal to the width of the upper right baffle.

[0059] Depend on Figure 2 It can be seen that when the left and right L-shaped baffles are stacked on the top of the car, after the left and right L-shaped baffles are folded, the height of the left L-shaped baffle is higher than the right L-shaped baffle, and the height difference is the plate thickness h.

[0060] The length of the upper right baffle is L, the width is Wh, and the thickness is h.

[0061] The upper fixed plate has a length of L, a width of W, and a thickness of h.

[0062] The length of the bottom plate of the box is L-2*h, the width is W, and the thickness is h.

[0063] Depend on Figure 7 Therefore, the width of the left L-shaped baffle after opening is equal to the width of the left upper baffle, which is W; the height of the left L-shaped baffle after opening is equal to the height of the front fixed plate, which is H; and the length is L-2*h.

[0064] When the right L-shaped baffle is opened, its width is equal to the width of the right upper baffle, which is Wh. When the right L-shaped baffle is opened, its height is equal to the height of the front fixed plate, which is H. Its length is L-2*h.

[0065] The width of the left front baffle and the left rear baffle is equal to the difference between the width of the left upper baffle and the thickness of the baffle, Wh.

[0066] The width of the right front baffle and the right rear baffle is equal to the difference between the width of the right upper baffle and the thickness, W-2*h.

[0067] The heights of the four baffles, namely, the left front baffle, the left rear baffle, the right front baffle and the right rear baffle, are equal and equal to the height H of the front fixed plate.

[0068] The height of the front fixed plate is H, and the width is W+2*h+2*R. (The two outer end faces of the front fixed plate are higher than the two end faces of the upper fixed plate and the two end faces of the bottom of the box. The height difference is the plate thickness. The two outer end faces of the rear fixed plate are higher than the two end faces of the upper fixed plate and the two end faces of the bottom of the box. The height difference is the plate thickness to accommodate the retracted L baffle. At the same time, in order to avoid mechanical movement interference, the above height difference is increased. The increased value is the hinge radius, such as Figure 5 (enlarged display).

[0069] The outer dimensions of the rear fixing plate are the same as those of the front fixing plate, with a height of H and a width of W+2*h+2*R.

[0070] In actual application, in order to reduce the difficulty of processing and facilitate installation, the length of the L-shaped baffle can be shortened by two millimeters, and a gap of 1 millimeter can be left on both sides to facilitate its rotation around the hinge axis with the bottom plate of the compartment between the parallel front baffle and rear baffle. The length of the L-shaped baffle is ((L-2*h)-2mm).

[0071] Common vehicle cabin dimensions can be used, assuming a left upper baffle width of W = 2400mm, a thickness of h = 100mm, and a hinge radius of R = 30mm. The cabin should not be too short; the requirement is L > (2W + 2R). This means the left upper baffle length should be L > 4860mm. This means a left upper baffle length of L = 5000mm, a thickness of h = 100mm, and a hinge radius of R = 30mm. The cabin should not be too high. Using the formula W > H + 3*h + R, we can determine that the front fixed plate height H cannot exceed 2070mm, so H = 2000mm.

[0072] An embodiment can be obtained, and the specific dimensions are as follows: the length of the upper left baffle is L=5000mm, the width is W=2400mm, and the thickness is h=100mm; the length of the upper right baffle is L=5000mm, the width is Wh=2300mm, and the thickness is h=100mm; the length of the upper fixed plate is L=5000mm, the width is W=2400mm, and the thickness is h=100mm; the length of the bottom plate of the box is L-2*h=4800mm, the width is W=2400mm, and the thickness is h=100mm; the width of the left L-shaped baffle after opening is equal to the width of the upper left baffle, which is W=2400mm; the height of the left L-shaped baffle after opening is equal to the height of the front fixed plate, which is H=2000mm, and the length is L-2*h=4800mm; the width of the right L-shaped baffle after opening is equal to the width of the upper right baffle, which is Wh=2300mm. mm, the height of the right L-shaped baffle after opening is equal to the height of the front fixed plate H=2000mm, and the length is L-2*h=4800mm.

[0073] In actual application, in order to reduce the difficulty of processing and facilitate installation, the length of the L-shaped baffle can be shortened by two millimeters, leaving a gap of 1 millimeter on both sides to facilitate its rotation around the hinge axis with the car floor between the parallel front baffle and rear baffle. The length of the L-shaped baffle is ((L-2*h)-2mm), and the length of the L-shaped baffle is L-2*h-2=4798mm.

[0074] The width of the left front baffle and the left rear baffle is equal to the difference between the width of the upper left baffle and the thickness, Wh=2300mm. The width of the right front baffle and the right rear baffle is equal to the difference between the width of the upper right baffle and the thickness, W-2*h=2200mm. The height of the left front baffle, left rear baffle, right front baffle, and right rear baffle are equal, equal to the height of the front fixed plate H=2000mm. The front fixed plate has a height of H=2000mm and a width of W+2*h+2*R=2660mm. The outer dimensions of the rear fixed plate are the same as those of the front fixed plate, with a height of H=2000mm and a width of W+2*h+2*R=2660mm.

[0075] The cross section of the 12 tail board is a narrow strip of right triangle. When unfolded, the short right angle side is straight (the thickness of the tail board is the short right angle side) and the long right angle side is horizontal and on top. The short right angle side is 100mm long, the long right angle side is 1500mm long, and the width of the tail board is 2400mm.

[0076] 13 The cross section of the rotating bin is a 90-degree sector with a sector radius of 1560mm, a rotating bin height of 1550m, and a wall thickness of 80mm at all locations.

[0077] 11. A door frame is opened in the center of the rear fixed plate with a width of 1600mm to accommodate 13 rotating warehouse through the rear fixed plate, the door frame to the top, the threshold below the door frame has the same thickness as the bottom plate of the box, and the entire bottom is straight.

[0078] Since the RV compartments are not subject to high operating intensity and are opened and closed only a few times a day, commonly used standard hydraulic cylinders can be used. Based on their operating intensity and effective stroke, the following hydraulic cylinder models can be used to achieve their functions: Hydraulic cylinder 21 model Φ80 / 40-600, hydraulic cylinder 22 model Φ80 / 40-600, hydraulic cylinder 24 model Φ125 / 70-1100, hydraulic cylinder 26 model Φ80 / 40-300, hydraulic cylinder 32 model Φ80 / 40-500, and hydraulic cylinder 30 model Φ100 / 50-600.

Claims

1. An expandable RV compartment, characterized in that: It consists of an expandable cargo box, a movable platform and an expandable rotating warehouse, which can be combined with each other to quickly form an expansion space; The expandable RV compartment comprises a rotatable upper baffle, a front baffle, a rear baffle, and an L-shaped baffle. The front fixed baffle is hinged to the two front baffles. The front baffle can rotate 90 degrees around its hinge with the front fixed plate, serving as the front baffle of the expansion space. The rear fixed baffle is hinged to the two rear baffles. The rear baffle can rotate 90 degrees around its hinge with the rear fixed plate, serving as the rear baffle of the expansion space. The compartment floor is hinged to the two L-shaped baffles. The L-shaped baffle can rotate 90 degrees around its hinge with the compartment floor, forming the outer bottom and left and right baffles of the expansion space. The two upper baffles are hinged to the upper fixed plate. The upper baffle can rotate 180 degrees around the hinge of the upper fixed plate, serving as the outer top of the expansion space. The upper fixed plate has grooves on both sides. Sealing strips are affixed to the grooves to form a seal with the upper baffle when opened. The movable platform and the tail plate are connected to the bottom plate of the box body by a horizontal hinge connection, and have a rotation positioning to ensure the horizontal positioning when opened; The expandable rotating bin has a 90-degree sector-shaped cross section and is hinged with the rear fixed plate, and can be rotated approximately 180 degrees to quickly form an expansion space.

2. The expandable RV compartment according to claim 1, characterized in that: A positioning block is provided at the lower outer sides of the two front baffles and the lower outer sides of the two rear baffles.

3. The expandable RV compartment according to claim 1, characterized in that: The rotating warehouse can rotate about 180 degrees, including a rear fixed plate, a rotating warehouse, a rotating warehouse pull rod, a rotating warehouse lever, and a hydraulic cylinder. The rear fixed plate is hinged to the rotating warehouse, one end of the rotating warehouse pull rod is hinged to the rotating warehouse, and the other end is hinged to the rotating warehouse lever. The other end of the rotating warehouse lever is hinged to the upper fixed plate through the rotating warehouse lever hinge seat, the hydraulic cylinder moving rod and the rotating warehouse pull rod, and the rotating warehouse lever are hinged. The hydraulic cylinder fixed rod is hinged to the upper fixed plate through the rotating warehouse hydraulic cylinder hinge seat, driving it to rotate 180 degrees.

4. The expandable RV compartment according to claim 1, characterized in that: The left and right upper baffles can be rotated 180 degrees, including the upper fixed plate, front fixed plate, rear fixed plate, upper baffle, upper baffle pull rod, upper baffle lever, hydraulic cylinder, the upper fixed plate and the front fixed plate are perpendicular to each other and fixed, the upper fixed plate is also perpendicular to each other and fixed with the rear fixed plate, the upper fixed plate and the upper baffle are hinged, One end of the upper baffle pull rod at the front end is hinged to the upper baffle, and the other end is hinged to the upper baffle lever at the front end. The other end of the upper baffle lever at the front end is hinged to the front fixed plate. The hydraulic cylinder moving rod and the upper baffle pull rod at the front end and the upper baffle lever at the front end are hinged. The hydraulic cylinder fixed rod is hinged to the front fixed plate. One end of the rear upper baffle pull rod is hinged to the upper baffle, and the other end is hinged to the rear upper baffle lever. The other end of the rear upper baffle lever is hinged to the rear fixed plate. The hydraulic cylinder moving rod is hinged to the rear upper baffle pull rod and the rear upper baffle lever. The hydraulic cylinder fixed rod is hinged to the rear fixed plate. Symmetrical on both sides, a total of four sets of mechanisms drive the left upper baffle and the right upper baffle to rotate 180 degrees at both ends.

5. The expandable RV compartment according to claim 1, characterized in that: The hydraulic cylinders that drive the baffles, baffle assemblies, tail plates, and rotating bins.

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