Device for driving multiple independent motions through single power source and application mechanism of device

Abstract

The invention relates to the technical field of mechanical transmission and the technical field of automatic tents. The invention discloses a device for driving multiple independent motions based on a single power source. A lead screw nut is fixed to a base, a lead screw connected with the nut in a sleeving mode is driven by a motor to rotate and generate axial displacement, an axial rotating arm fixed to the lead screw moves spirally, and a synchronous belt wheel is driven to rotate through a synchronous belt wheel area which cannot move axially; when the synchronous belt wheels leave the area of the synchronous belt wheels, the synchronous belt wheels stop rotating, and a plurality of rotating arms are mounted on the screw rod, so that the synchronous belt wheels can independently move simultaneously or asynchronously. The invention further discloses a full-automatic opening and closing vehicle-mounted tent based on the principle that a single power source drives a plurality of independent movement devices. The opening of the shell, the lifting of the top frame, the opening of the bottom plate and the tarpaulin and the locking of the bottom plate can be automatically and sequentially completed through one key. And during closing, the four actions of unlocking the bottom plate, folding the bottom plate, falling the top cover and closing the shell are automatically and sequentially completed.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical transmission and automatic tent, and in particular to a device for driving multiple independent movements with a single power source and a fully automatic opening and closing vehicle-mounted tent using the device. Background Art

[0002] In the current field of mechanical transmission, a single power source is generally used to drive a motion mechanism. The driving device of a complex mechanism is often complex in structure. The working principle of a few mechanisms that use a single power source to drive multiple motions is complex, and the mechanism itself is large in size and weight, which is inconvenient to use in mechanisms that require compactness and lightness. Most of the current car tents are opened and closed manually, and the procedures are cumbersome, the operation is responsible, and it is time-consuming and laborious. A small number of roof tents that are opened and closed electrically are too simple in design and do not achieve one-button operation. In addition, the plane space of the tent cannot be expanded, and the internal space is small after opening, which is uncomfortable to use. At the same time, it mainly relies on the vehicle itself to bear the weight, the load-bearing capacity is limited, and the stability is poor, which limits the popularity of car tents. Summary of the invention

[0003] The first problem to be solved by the present invention is to use a simple mechanism to realize a single power source driving multiple independent movements, while the mechanism is small in size and light in weight, and is suitable for portable devices.

[0004] The second problem to be solved by the present invention is to provide a fully automatic vehicle-mounted tent using the above mechanism. The tent can be opened and closed with one key, and the horizontal size can be expanded when opened. It has a large use space, good comfort, does not rely on the body to bear the weight, and has good stability. After closing, it is light in weight and thin in thickness, and the vehicle driving safety is high.

[0005] As a device for driving multiple independent movements with a single power source as the first aspect of the present invention, it is characterized in that it includes a motor, a spiral rotating shaft, a power transmission device, and a fixed base; preferably, the motor is fixed to the fixed base, and a synchronous pulley is installed at its power output end; preferably, the spiral rotating shaft is composed of three parts fixedly connected, with screw rods of a certain length at both ends and a linear slide rail in the middle, the screw rod is sleeved on a screw rod nut, and the screw rod nut is fixed to the base and cannot move, the linear slide rail axially passes through the inner hole of the stressed synchronous pulley, and its slider is fixedly connected to the stressed synchronous pulley, the stressed synchronous pulley is fixedly connected to the outer ring of the bearing, and the inner ring of the bearing The ring is fixedly connected to the fixed base, and the force-bearing synchronous pulley is connected to the synchronous pulley one at the power output end of the motor through a synchronous belt; preferably, the power transmission device includes a rotating arm (metal straight rod), which is fixedly mounted on the screw and perpendicular to the rotating shaft, and the second bearing is perpendicular to the spiral rotating shaft, and its inner ring is fixedly connected to the fixed base, and the screw passes through its inner ring, and the outer ring of the second bearing is coaxially fixedly connected to the force transmission synchronous pulley, and the force transmission synchronous pulley is fixedly connected to a rectangular metal sheet, and the rectangular metal sheet is located within the rotation radius range of the inner hole and the outer circle of the force transmission synchronous pulley, and is parallel to the diameter direction of the outer circle of the force transmission synchronous pulley.

[0006] Furthermore, the motor outputs power, and the synchronous pulley drives the force-transmitting synchronous pulley to rotate. Since the position of the screw nut is fixed, the force-transmitting synchronous pulley and the slider of the linear slideway rotate in place, driving the linear slideway and the screw to rotate and displace axially. The rotating arm will produce a spiral motion and displace axially along the spiral rotation axis. When the rotating arm rotates to the position of the rectangular metal sheet, it will move the metal sheet and drive the force-transmitting synchronous pulley to rotate together. When the rotating arm leaves the position of the rectangular metal sheet, the rectangular metal sheet and the force-transmitting synchronous pulley stop rotating; when the motor rotates in the opposite direction, the force-transmitting synchronous pulley also rotates in the opposite direction; the above device can realize the rotation of the force-transmitting synchronous pulley for a specific number of turns by changing the size of the metal sheet. Multiple rotating arms and the corresponding number of metal sheets and the force-transmitting synchronous pulleys are installed within the range of the screw. The rotating arm moves different metal sheets at different times, so that multiple synchronous pulleys can rotate independently for a specific number of turns at the same time or at different times; the force-transmitting synchronous pulleys are connected to other motion systems with synchronous belts respectively, so that the independent movement of multiple motion systems can be realized.

[0007] Furthermore, in addition to the combination of the synchronous pulley and the synchronous belt used in this embodiment, a combination of a sprocket and a chain or a combination of bevel gears may also be used.

[0008] The second aspect of the present invention is a fully automatic opening and closing vehicle-mounted tent based on the principle of a single power source driving multiple independently moving devices, characterized in that it includes: a base system that can be connected to a car luggage rack through a base; a top frame system, located on the upper part of the base system; a tarpaulin system, located between the base system and the top cover system, and wrapped around the outside of the base system and the top cover system; a base locking system, located at the four corners of the outer frame of the base system; a single power source drives multiple independently moving devices, which are fixed in the base system and connected to the power system, the top cover system, the base system, and the base locking system with a synchronous belt; an outer shell opening and closing system, which is located around and on the upper part of the top frame system; retractable four-corner support rods, which are installed at the four corners of the base of the tent when it is opened and need to be manually installed and removed; and a foldable ladder, which is manually installed and removed.

[0009] Preferably, the floor system comprises: a fixed bottom frame, which is a rectangular metal frame structure and is located directly above the roof luggage rack, with its long side parallel to the vehicle body and can be connected to the roof luggage rack; two reversible bottom frames, which are a rectangular metal frame structure and are symmetrically hinged on both sides of the long side of the fixed bottom frame, with the long side size consistent with the long side size of the fixed bottom frame, and the short side outer frame profile specification consistent with the short side outer frame of the fixed bottom frame, and can be rotated along the hinge point with the long side of the fixed bottom frame as the axis, and the reversible bottom frame is opened along the rotation axis and can form a tent together with the fixed bottom frame The bottom frame is a square frame, and the reversible bottom frame can be completely folded into the range of the fixed bottom frame by rotating 180 degrees along the rotating axis; there are four hinges, which are symmetrically installed on the top surfaces of the four corners of the fixed bottom frame, connecting the fixed bottom frame and the short side of the reversible bottom frame, and the reversible bottom frame rotates around it; there are four rotating rod groups, each group consists of two metal rods hinged end to end, which are respectively located at the four corners of the fixed bottom frame, one end is hinged to the outer frame of the short side of the fixed bottom frame, and the other end is hinged to the outer frame of the short side of the reversible bottom frame, and together with the hinges, the reversible bottom is realized The opening and folding of the frame; there are four synchronous pulley groups, each group consists of five synchronous pulleys fixed to the fixed bottom frame and capable of rotating freely, which are respectively installed on the inner sides of the four corners of the fixed bottom frame, and are used to adjust the transmission ratio of the synchronous pulleys. The synchronous pulley a is at the outermost side and is fixedly connected to one end of the rotating rod group hinged to the fixed bottom frame. The synchronous pulley b is connected to the synchronous pulley a by a synchronous belt. The synchronous pulley c is coaxially fixedly connected to the synchronous pulley b and is fixed to the fixed bottom frame and capable of rotating freely. The synchronous pulley d is connected to the synchronous pulley c is connected by a synchronous belt, the synchronous pulley e is coaxially fixedly connected with the synchronous pulley d, and is fixed in position to the fixed bottom frame and can rotate freely. The rotation of the synchronous pulley e can drive the rotating rod group to rotate, and pull the reversible bottom frame to rotate around the long side of the fixed bottom frame; the above structure can also use a combination of sprockets and chains, or a combination of gears to replace the above synchronous pulley group; the hard floor is fully paved in the fixed bottom frame and the reversible bottom frame, and is flush with the top surface of the frame; the tent bottom shell, made of plastic, is wrapped around the bottom and surrounding of the fixed bottom frame to form the bottom shell of the entire tent.

[0010] Preferably, the top frame system includes: a top frame, which is a metal frame with the same outer dimensions as the fixed bottom frame and is located directly above the fixed bottom frame; two reversible top frames, which are U-shaped steel wires with the same outer dimensions as the reversible bottom frames and are symmetrically installed on both sides of the long sides of the top frame and directly above the two reversible bottom frames, with both ends hinged to the four corners of the top frame. When the reversible top frame is opened, it can form a top frame of the tent together with the fixed top frame. The reversible top frame can be flipped 180 degrees along the hinge points at both ends and completely folded into the fixed top frame. There are two upper slide rails, each containing a slide rail and a slider, which are fixedly installed on the outside of the short side of the top frame (perpendicular to the direction of the vehicle body); there are two lower slide rails, each containing a slide rail and a slider, which are fixedly installed on the outside of the short side of the fixed bottom frame, corresponding to the position of the upper slide rail one up and down; there are two lifting bracket groups, each group is composed of three pairs of cross-crossed metal rods hinged at the midpoint, which are hinged end to end and installed between the upper slide rail one and the lower slide rail, the uppermost end is hinged to the outside of the outer frame of the short side of the top frame, and the other end is hinged to the slider of the upper slide rail one, and the lowermost end is hinged to the outside of the outer frame of the short side of the fixed bottom frame, and the other end is hinged to the slider of the lower slide rail; there are two synchronous pulley groups, each group is composed of three synchronous pulleys, the synchronous pulley f is coaxially fixedly connected with the synchronous pulley g, and the connecting shaft passes through the fixed bottom frame The short side outer frame is located on the left side of the lower slide rail and can rotate freely. The synchronous pulley f is located on the outside, and the synchronous pulley g is located on the inside. The synchronous pulley h is installed on the outside of the short side outer frame of the fixed bottom frame and directly below the synchronous pulley f, and can rotate freely; the synchronous pulley one, which is two in number, is respectively installed on the outside of the fixed bottom frame on the right side of the lower slide rail, and can rotate freely, and is connected to the synchronous pulley f and the synchronous pulley h with a synchronous belt; the synchronous belt one, which is two in number, is respectively connected to the synchronous pulley f, the synchronous pulley h and the synchronous pulley one in the synchronous pulley group two, and is hinged to the lower slider, and the rotation of the synchronous belt one can drive the lower slider to slide, and the lower slider drives the lower movable end of the lifting bracket group to slide, and the lifting bracket group supports the fixed top frame to rise and fall.

[0011] Preferably, the tarpaulin system comprises: a tarpaulin, which is surrounded by the outside of the base plate system and the top frame system, has an open shape of a rectangular parallelepiped, and is provided with doors and windows; when closed, it can be folded in a zigzag shape in four sections along the height direction; a tarpaulin frame one, which consists of two groups, each group is formed by four sections of support rods hinged end to end, can be folded in a zigzag shape, is symmetrically installed on the inner side of the tarpaulin, fits the tarpaulin, has a lower end hinged to the long side of the flippable bottom frame, and an upper end is hinged to the long side of the flippable top frame; a tarpaulin frame two, which consists of two groups, each group is formed by four sections of support rods hinged end to end, can be folded in a zigzag shape, is symmetrically installed on the inner side of the tarpaulin, fits the tarpaulin, has a lower end hinged to the short side of the fixed bottom frame, and an upper end is hinged to the short side of the fixed top frame.

[0012] Preferably, the bottom plate locking system comprises: four metal square tubes, whose inner cross-sectional dimensions are slightly larger than the outer cross-sectional dimensions of the short side main frame of the fixed bottom frame, and are nested outside the four corners of the short side main frame of the fixed bottom frame; four racks one, which are fixedly connected to the aluminum square tube; four synchronous pulley groups three, each group consisting of two synchronous pulleys, synchronous pulley j meshes with rack one, synchronous pulley k is coaxially fixedly connected with synchronous pulley j, the positions of synchronous pulley j and synchronous pulley k are both fixed to the fixed bottom frame, but can rotate freely; the rotation of synchronous pulley k drives the synchronous pulley j to rotate, and then drives rack one to slide with the metal square tube.

[0013] Preferably, the shell opening and closing system comprises: an upper shell, which is wrapped around the upper part and the surrounding of the top frame, is made of plastic, is slightly larger than the plastic bottom shell, and together with the plastic bottom shell forms a plastic shell of the tent; two synchronous pulleys nine, which are fixedly installed on the outside of the midpoint of the outer frame of the short side of the top frame and can rotate freely; two racks, which have a sliding groove in the middle of the rack, are installed on the upper part of the synchronous pulley nine, mesh with the synchronous pulley nine, and are hinged to the slider of the upper slide rail one on the right side; two racks, which have a sliding groove in the middle of the rack, are installed on the lower part of the synchronous pulley nine, and mesh with the synchronous pulley nine; four upper slide rails two, with sliders, are fixedly installed on the outside of the outer frame of the short side of the top frame, near the four corners; four push-pull rods one, which are L A metal rod, the bent ends of which extend into the sliding grooves of the rack two and the rack three respectively, and the other end is connected to the slider of the upper slide rail two; there are four rotating rods one, which are metal straight rods, one end of which is hinged to the outside of the short side outer frame of the top frame, and the other end is hinged to the midpoint of the rotating rod two; there are four rotating rods two, whose positions correspond to the rotating rod one, which is a metal straight rod, twice the length of the rotating rod one, one end of which is hinged to the force transmission rod one and the slider of the slide rail three, the midpoint position is hinged to one end of the rotating rod one, and the other end is hinged to the inner sides of the four corners of the upper shell; there are four pull ropes, which are respectively installed on the inner sides of the four corners of the upper shell, one end is connected to the rotating rod two, and the other end is connected to the short side of the flippable top frame.

[0014] Preferably, a single power source drives multiple independent motion devices including: a motor, the number of which is one and the position of which is fixed in the fixed bottom frame; a synchronous pulley eight, which is fixedly installed at the power output end of the motor; a gear one, which is fixedly installed at the power output end of the motor; a gear two, which is meshed with the gear one, is fixed at the fixed bottom frame, and can rotate freely; a synchronous pulley nine, which is coaxially fixedly connected with the gear two, is fixed at the fixed bottom frame, and can rotate freely; further, the motor outputs power to drive the synchronous pulley eight and the gear one to rotate, thereby driving the gear two and the synchronous pulley nine to rotate; there are two spiral rotating shafts, which are symmetrically installed on both sides of the symmetry axis of the long side of the fixed bottom frame, parallel to the long side of the fixed bottom frame, and their screw nuts are fixedly connected to the fixed bottom frame, and the two force-bearing pulleys are respectively connected to the coaxial pulleys with synchronous belts. The step pulley eight is connected to the synchronous pulley nine; further, there are ten power transmission devices in total, which are divided into three types: there are two power transmission devices one, four power transmission devices two, and four power transmission devices three; the power transmission device one, there are two of them, which are respectively located at the screw rods at one end of the two spiral rotating shafts, and the power transmission pulleys are respectively connected to the two synchronous pulleys g in the top frame system with synchronous belts; the power transmission device two, there are four of them, which are respectively located at the screw rods at both ends of the two spiral rotating shafts, and the power transmission pulleys are respectively connected to the four synchronous pulleys e in the bottom frame system with synchronous belts; the power transmission device three, there are four of them, which are respectively located at the screw rods at both ends of the two spiral rotating shafts, and the power transmission pulleys are respectively connected to the four synchronous pulleys k in the bottom plate locking system with synchronous belts.

[0015] Preferably, the retractable four-corner support rods are four in number and are load-bearing rods with retractable lengths. They are detachable. After the reversible bottom frame is opened and the bottom frame system is locked, they are connected to the four corners of the reversible bottom frame to support the main weight of the tent when it is in use.

[0016] Preferably, the foldable ladder is detachable and installed at the side door of the reversible bottom frame for use in entering and exiting the tent.

[0017] Description of the drawings.

[0018] Figure 1 A schematic diagram of a device in which a single power source drives multiple independent motions.

[0019] Figure 2 The present invention is a position diagram of the components of a fully automatic opening and closing vehicle-mounted tent based on the principle of a single power source driving multiple independent motion devices.

[0020] Figure 3The figure is a position diagram of a fully automatic opening and closing vehicle-mounted tent bottom frame system based on the principle of a single power source driving multiple independent motion devices.

[0021] Figure 4 This is a schematic diagram of the structure of a corner of a fully automatic opening and closing vehicle-mounted tent bottom frame system based on the principle of a single power source driving multiple independent motion devices.

[0022] Figure 5 The schematic diagram of the structure of a fully automatic opening and closing vehicle-mounted tent top frame system is based on the principle of a single power source driving multiple independent motion devices.

[0023] Figure 6 The schematic diagram of the structure of a fully automatic opening and closing vehicle-mounted tent top frame system is based on the principle of a single power source driving multiple independent motion devices.

[0024] Figure 7 The schematic diagram of the structure of a fully automatic opening and closing vehicle-mounted tent top frame system is based on the principle of a single power source driving multiple independent motion devices.

[0025] Figure 8 The schematic diagram of the structure of a fully automatic opening and closing vehicle-mounted tent top frame system is based on the principle of a single power source driving multiple independent motion devices.

[0026] Fig. 9 The schematic diagram of the structure of a fully automatic opening and closing vehicle-mounted tent top frame system is based on the principle of a single power source driving multiple independent motion devices.

[0027] Fig.10 The schematic diagram of the structure of a fully automatic opening and closing vehicle-mounted tent bottom plate locking system is based on the principle of a single power source driving multiple independent motion devices.

[0028] Fig.11 The schematic diagram is a structural diagram of a fully automatic opening and closing vehicle-mounted tent shell opening and closing system based on the principle of a single power source driving multiple independent motion devices.

[0029] Fig.12 The schematic diagram is a structural diagram of a fully automatic opening and closing vehicle-mounted tent shell opening and closing system based on the principle of a single power source driving multiple independent motion devices.

[0030] Fig.13 A schematic diagram of the structure of a single power source driving multiple independent motion devices for fully automatic opening and closing of a vehicle-mounted tent.

[0031] Fig.14 A schematic diagram of the structure of a single power source driving multiple independent motion devices for fully automatic opening and closing of a vehicle-mounted tent.

[0032] Specific implementation method.

[0033] 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.

[0034] See also Figure 1A device (1) for driving multiple independent movements with a single power source comprises a motor (11), a spiral rotating shaft (12), a power transmission device (13), and a fixed base (14); the motor (11) is fixed to the fixed base (14), and a synchronous pulley (111) is installed at its power output end; the spiral rotating shaft (12) is composed of three parts fixedly connected, with a screw rod (121) of a certain length at both ends and a linear slide rail (122) in the middle; the screw rod (121) is sleeved on a screw rod nut (123), and the screw rod The nut (123) is fixed to the base (14) and cannot move. The linear slide rail (122) axially passes through the inner hole of the stressed synchronous pulley (124). The slider (1221) is fixedly connected to the stressed synchronous pulley (124). The stressed synchronous pulley (124) is fixedly connected to the outer ring of the bearing one (125). The inner ring of the bearing one (125) is fixedly connected to the fixed base (14). The stressed synchronous pulley (124) is connected to the synchronous pulley one (111) at the power output end of the motor (11) through a synchronous belt. The power transmission device (13) comprises a rotating arm (metal straight rod) (131) fixedly mounted on the screw (121) and perpendicular to the spiral rotating shaft (12); the inner ring of the second bearing (132) is fixedly connected to the fixed base (14); the screw (121) passes through its inner ring; the outer ring of the second bearing (132) is coaxially fixedly connected to the power transmission synchronous pulley (133); the power transmission synchronous pulley (133) is fixedly connected to a rectangular metal sheet (134); the rectangular metal sheet is located within the rotation radius range of the inner hole and the outer circle of the power transmission synchronous pulley (133) and is parallel to the diameter direction of the outer circle of the power transmission synchronous pulley (133); the motor (11) outputs power, and the synchronous belt Wheel 1 (111) drives the force-transmitting synchronous pulley (124) to rotate. Since the position of the screw nut (123) is fixed, the force-transmitting synchronous pulley (124) and the slider (1221) of the linear slide rail (122) rotate in situ, the linear slide rail (122) and the screw (121) rotate and move axially, and the rotating arm (131) moves spirally. When the rotating arm (131) rotates to the position of the rectangular metal sheet (134), the metal sheet (134) and the force-transmitting synchronous pulley (133) are driven to rotate together. When the rotating arm (131) leaves the position of the rectangular metal sheet (134), the rectangular metal sheet (134) and the force-transmitting synchronous pulley (133) stop rotating. When the motor (11) rotates in the reverse direction, the force transmission synchronous pulley (133) also rotates in the reverse direction. The above device can realize the rotation of the force transmission synchronous pulley (133) by a specific number of turns. A plurality of rotating arms (131) and a corresponding number of force transmission synchronous pulleys (133) are installed within the range of the screw rod (121), so that the plurality of force transmission synchronous pulleys (133) can be rotated independently by a specific number of turns simultaneously or staggered.

[0035] See also Figure 2A fully automatic opening and closing vehicle-mounted tent based on the principle of a single power source driving multiple independently moving devices comprises: a bottom plate system (2) which can be connected to a vehicle luggage rack via a base; a top frame system (3) located on the top of the bottom plate system (2); a tarpaulin system (4) located between the bottom plate system (2) and the top cover frame system (3) and wrapped around the outside of the bottom plate system (2) and the top frame system (3); a bottom plate locking system (5) located at the four corners of the outer frame of the bottom plate system (2); a single power source driving multiple independently moving devices (1) fixed inside the bottom plate system and connected to the top frame system (3), the bottom plate system (2) and the bottom plate locking system (5) by a synchronous belt; an upper shell system (6) located around and on the top of the top frame system (3); retractable four-corner support rods (7) installed at the four corners of the bottom plate system (2) when the tent is opened and need to be manually installed and removed; and a foldable ladder (8) installed on the side of the tent when the tent is opened for use in entering and exiting the tent and need to be manually installed and removed.

[0036] See also Figure 3 , Figure 4The bottom plate system (2) comprises: a fixed bottom frame (21), one in number, a rectangular metal frame structure, located directly above the roof luggage rack, with its long side parallel to the vehicle body, and capable of connecting to the roof luggage rack; two reversible bottom frames (22), a rectangular metal frame structure, symmetrically hinged on both sides of the long side of the fixed bottom frame (21), with its long side size being consistent with that of the fixed bottom frame (21) and having the same profile specifications, and capable of rotating along the hinge point with the long side of the fixed bottom frame (21), and together with the fixed bottom frame (11) forming a square bottom frame of the tent, and the reversible bottom frame (12) can be rotated 18 along the rotation axis. The fixed bottom frame (21) can be completely folded into the range of the fixed bottom frame (21) by rotating 0 degrees; the hinges (23) are symmetrically installed on the top surfaces of the four corners of the short sides of the fixed bottom frame (21) to connect the fixed bottom frame (21) and the reversible bottom frame (22); the rotating rod groups (24) are four in number, each group is composed of two metal rods (241) and metal rods (242) hinged end to end, and are located at the four corners of the fixed bottom frame (21). The end of the metal rod (241) is hinged to the outer frame of the fixed bottom frame (21), and the end of the metal rod (242) is hinged to the outer frame of the reversible bottom frame (22). Together with the hinges (23), the reversible bottom frame (22) can be realized. The opening and folding of the flip bottom frame (22); a synchronous pulley group (25), the number of which is four groups, each group consisting of five synchronous pulleys fixed to the fixed bottom frame (21) and capable of rotating freely, installed on the inner sides of the four corners of the fixed bottom frame (21), and functioning to adjust the transmission ratio of the synchronous pulleys, the synchronous pulley a (251) being at the outermost side, and being fixedly connected to one end of the rotating rod group (24) hinged to the fixed bottom frame (21), the synchronous pulley b (252) being connected to the synchronous pulley a (251) by a synchronous belt, the synchronous pulley c (253) being coaxially fixedly connected to the synchronous pulley b (252), and the synchronous pulley d (25 4) is connected to the synchronous pulley c (253) by a synchronous belt, and the synchronous pulley e (255) is coaxially fixedly connected to the synchronous pulley d (254). The synchronous pulley e (255) rotates, and in turn drives the synchronous pulley d (254), the synchronous pulley c (253), the synchronous pulley b (252), and the synchronous pulley a (251) to rotate, driving the metal rod 1 (241) to rotate with the end hinge point as the axis, pulling the subordinate rod 2 (242) together with the reversible bottom frame (22) to rotate around the long side of the fixed bottom frame (21); the above structure can also use a combination of sprockets and chains, or a combination of gears to replace the above synchronous pulley group. The hard floor (26) is fully paved in the fixed bottom frame (21) and the reversible bottom frame (22), and is flush with the top surface of the frame; the tent bottom shell (27) is made of plastic and wrapped around the bottom and surrounding of the fixed bottom frame (21) to form the bottom shell of the entire tent.

[0037] See also Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9The top frame system (3) comprises: a fixed top frame (31), which is a metal frame with the same outer dimensions as the fixed bottom frame (21) and is located directly above the fixed bottom frame (21); and two reversible top frames (32), which are made of U-shaped steel wires and have the same outer dimensions as the reversible bottom frames (22) and are symmetrically installed on both sides of the long sides of the fixed top frame (31) and directly above the two reversible bottom frames (22). The two ends are hinged to the four corners of the fixed top frame (31) and together with the fixed top frame (31) form the top frame of the tent. The reversible top frame (22) can be flipped 180 degrees along the hinge points at both ends and completely folded into the fixed top frame (31).The first upper slide rail (33) is two in number and includes a slide rail (331) and a slider (332), which are fixedly installed on the outside of the short side (perpendicular to the vehicle body direction) of the fixed top frame (31); the second lower slide rail (34) is two in number and includes a slide rail (341) and a slider (342), which are fixedly installed on the outside of the short side of the fixed bottom frame (21), corresponding to the upper and lower positions of the first upper slide rail (33); the second lifting bracket group (35) is two in number, each group is composed of three pairs of cross-cross metal rods hinged at the midpoint and hinged at the head and tail, and is installed between the first upper slide rail (33) and the second lower slide rail (34), and the ends of the two uppermost straight rods are hinged at the ends of the two uppermost straight rods. The ends of the two straight rods at the bottom are hinged to the outside of the short side of the fixed top frame (31), and the other end is hinged to the slider (332) of the upper slide rail (33). The ends of the two straight rods at the bottom are hinged to the outside of the short side of the fixed bottom frame (31), and the other end is hinged to the slider (342) of the lower slide rail (34). The synchronous pulley group (36) is two in number, each group is composed of three synchronous pulleys, the synchronous pulley f (361) is coaxially fixedly connected with the synchronous pulley g (362), the connecting shaft crosses the short side of the fixed bottom frame (21), is located on the left side of the lower slide rail (34), and can rotate freely, the synchronous pulley f (361) is located on the fixed bottom frame (21) The fixed bottom frame (21) is provided with a short side outer frame outside, a synchronous pulley g (362) is provided with a short side outer frame inside the fixed bottom frame (21), and a synchronous pulley h (363) is provided with a short side outer frame outside the fixed bottom frame (21) and directly below the synchronous pulley f (261) and can rotate freely; the synchronous pulleys 1 (37) are provided with two, respectively, on the short side outer frame of the fixed bottom frame (21) on the right side of the lower slide rail (34), and can rotate freely, and are connected with the synchronous pulleys f (361) and the synchronous pulley h (363) by a synchronous belt; the synchronous belts 1 (38) are provided with two, respectively, on the short side outer frame of the fixed bottom frame (21) and the synchronous pulleys h (363) in the synchronous pulley group 2 (36). The synchronous pulley f (361), the synchronous pulley h (363) and the synchronous pulley one (37) are connected and hinged with the slider (342) of the lower slide rail (34); the synchronous pulley g (362) rotates to drive the synchronous pulley f (361) to rotate, thereby driving the synchronous pulley h (363), the synchronous pulley one (37) and the synchronous belt one (38) to rotate, and the slider (342) slides along with the synchronous belt one (38), driving the movable ends of the two straight rods at the bottom of the lifting bracket group (35) to slide, and the upper straight rods of the lifting bracket group (35) support the fixed top frame (31) to rise and fall.

[0038] See also Figure 2The tarpaulin system (4) comprises: a tarpaulin (41) which is surrounded by the outside of the bottom plate system (2) and the top frame system (3), and has a rectangular shape when opened and is provided with doors and windows; when closed, it can be folded in a zigzag shape in four sections along the height direction; a tarpaulin frame (42) having two groups, each group being formed by four sections of support rods hinged end to end, and being folded in a zigzag shape, symmetrically installed on the inner side of the tarpaulin (41), fitting with the tarpaulin (41), with the lower end hinged to the long side of the reversible bottom frame (22), and the upper end hinged to the long side of the reversible top frame (32); a tarpaulin frame (43) having two groups, each group being formed by four sections of support rods hinged end to end, and being folded in a zigzag shape, symmetrically installed on the inner side of the tarpaulin (41), fitting with the tarpaulin (41), with the lower end hinged to the long side of the reversible bottom frame (22), and the upper end hinged to the long side of the reversible top frame (32). The ends are hinged to the short sides of the fixed top frame (31); when the tent is opened, the tarpaulin frame 1 (42) is flipped out of the fixed bottom frame (21) along with the flippable bottom frame (22) and the flippable top frame (32); while the top frame system (3) is raised, the tarpaulin (41) is extended along with the four-section folding rods of the tarpaulin frame 1 (42) and the tarpaulin frame 2 (43), and supports the four sides of the tarpaulin; when the tent is closed, the tarpaulin frame 1 (42) is flipped into the range of the fixed bottom frame (21) along with the flippable bottom frame (22) and the flippable top frame (32); then, as the top frame system (3) falls, the tarpaulin frame 1 (42), the tarpaulin frame 2 (43) and the tarpaulin (41) are folded into four sections and stored between the bottom frame system (2) and the top frame system (3).

[0039] See also Fig.10 The bottom plate locking system (5) comprises: four metal square tubes (51), whose inner cross-sectional dimensions are slightly larger than the outer cross-sectional dimensions of the short side main frame of the fixed bottom frame (21), and are nested outside the four corners of the short side main frame of the fixed bottom frame (21); four racks (52) fixedly connected to the aluminum square tube (51); four synchronous pulley sets (53), each set consisting of two synchronous pulleys, the synchronous pulley j (531) meshing with the racks (52), the synchronous pulley k (532) being coaxially fixedly connected to the synchronous pulley j (531), and the synchronous pulley j (531) and the synchronous pulley k (532) being coaxially fixedly connected. ) are fixed in position to the fixed bottom frame (21), but can rotate freely; the synchronous pulley k (532) rotates, driving the synchronous pulley j (531) to rotate, thereby driving the rack 1 (52) and the metal square tube (51) to slide together; when the tent is opened, the metal square tube (51) slides until half of it is embedded in the short side outer frame of the fixed bottom frame (21), and the other half is embedded in the short side outer frame of the reversible bottom frame (22), thereby locking the bottom frame system (2); before the tent is folded, the metal square tube (51) slides into the range of the short side outer frame of the fixed bottom frame (21), the bottom frame system (2) is unlocked, and the reversible bottom frame (22) can be flipped.

[0040] See also Fig.11 , Fig.12The outer shell opening and closing system (6) comprises: an upper outer shell (61) wrapped around the upper part and the surrounding of the top frame (31), located directly above the fixed bottom frame (21), made of plastic material, slightly larger than the plastic bottom shell (27), and together with the plastic bottom shell (27) forming the plastic outer shell of the tent; two synchronous pulleys (62), fixedly installed on the outer side of the midpoint of the two short sides of the fixed top frame (31), and freely rotatable; two racks (63), with a sliding groove in the middle, installed on the synchronous pulley The upper part of the seventh (62) is meshed with the synchronous pulley seventh (62), and the right side is hinged with the slider (332) of the upper slide rail one (33); the rack three (64), the number of which is two, has a sliding groove in the middle, is installed on the lower part of the two synchronous pulleys seven (62), and meshes with the synchronous pulley nine (72); the upper slide rail two (65), the number of which is four, has a slider (651), and is fixedly installed on the outer side of the four corners of the short side main frame of the fixed top frame (31); the push-pull rod one (66), the number of which is four The first rotating rod (67) is a metal straight rod, one end of which is hinged to the outer side of the main frame of the fixed top frame (31), and the other end is hinged to the midpoint of the second rotating rod (68); the second rotating rod (68) is a metal straight rod, the bent ends of which extend into the sliding grooves of the second rack (63) and the third rack (64) respectively, and the other ends are connected to the slider (651) of the second slide rail (65). A metal straight rod, twice as long as the first rotating rod (67), one end of which is hinged to the slider (651) of the second upper slide rail (65) and the first force transmission rod (66), and the other end is hinged to the four corners of the inner side of the upper shell (61), and the midpoint is hinged to one end of the first rotating rod (67); four pull ropes (69) are respectively installed on the inner sides of the four corners of the upper shell (61), one end of which is connected to the second rotating rod (68), and the other end is connected to the flip top frame (32).

[0041] See also Fig.13 , Fig.14The device (7) for driving multiple independent movements with a single power source comprises: a motor (71), the number of which is one and the position is fixed in a fixed bottom frame (21); a synchronous pulley (72), which is fixedly mounted on the power output end of the motor (71); a gear (73), which is fixedly mounted on the power output end of the motor (71); a gear (74), which is meshed with the gear (73), is fixedly mounted on the fixed bottom frame (21) and can rotate freely; a synchronous pulley (75), which is coaxially fixedly connected with the gear (74), is fixedly mounted on the fixed bottom frame ( 21), which can rotate freely; there are two spiral rotating shafts (76), which are symmetrically installed on both sides of the long side symmetry axis of the fixed bottom frame (21), and their screw nuts are fixedly connected to the fixed bottom frame (21), and the two force pulleys are respectively connected to the synchronous pulley three (72) and the synchronous pulley four (75) by synchronous belts; there are ten power transmission devices (77), which are divided into three types: two power transmission devices one (771), four power transmission devices two (772), and four power transmission devices three (773); power transmission device one (77 1), two in number, located at one end of the two spiral rotating shafts (76), respectively, and their power transmission pulleys (7711) are respectively connected to the two synchronous pulleys g (362) in the top frame system (3) by synchronous belts; power transmission device 2 (772), four in number, located at the two ends of the two spiral rotating shafts (76), respectively, and their power transmission pulleys (7721) are respectively connected to the four synchronous pulleys e (255) in the bottom frame system (2) by synchronous belts; power transmission device 3 (773), four in number, located at the two spiral rotating shafts (7 6), the transmission pulleys (7731) are respectively connected to the four synchronous pulleys k (532) in the bottom plate locking system (5) by synchronous belts; the four retractable four-corner support rods (81) are retractable in length and are load-bearing rods. They are detachable and can be opened by flipping the bottom frame (12). After the bottom frame system is locked, they are connected to the four corners of the flip bottom frame (12) to support the main weight of the tent when it is in use; the foldable ladder (91) is detachable and can be installed on the side door of the flip bottom frame (12) after the tent is opened, so as to enter and exit the tent. When the tent is opened, it is started with one button, and the motor (71) outputs power to drive the synchronous pulley three (72) and the gear one (73) to rotate, thereby driving the gear two (74) and the synchronous pulley four (75) to rotate;The synchronous pulley three (72) and the synchronous pulley four (75) drive the two force-bearing pulleys of the spiral rotating shaft (76) and the slider (1221) of the linear slide rail to rotate together through the synchronous belt, thereby driving the spiral rotating shaft (76) to rotate. Because the screw nut (123) is fixed to the base (14) and cannot move, the spiral rotating shaft (76) will move along the axial direction while rotating. The rotating arm (131) in the power transmission device (771) first moves to the position of the metal sheet (134), and the metal sheet (134) is moved to rotate, thereby driving the power transmission pulley (7711) of the power transmission device (771) to respectively drive the two synchronous pulleys g (362) in the top frame system (3) to rotate. The top frame system rises; after the power transmission device 1 (771) stops moving, the rotating arm (131) in the power transmission device 2 (772) drives the metal sheet (134) to rotate, and then the power transmission pulley (7721) of the power transmission device 2 (772) drives the four synchronous pulleys e (255) in the bottom frame system (2) to rotate, thereby realizing the flipping of the flippable bottom frame (22) and the flippable top frame (32), and the tarpaulin is opened; after the power transmission device 2 (772) stops moving, the rotating arm (131) in the power transmission device 3 (773) starts to drive the metal sheet (134) to rotate, and its power transmission pulley (7731) drives the four synchronous pulleys e (255) in the bottom plate locking system (5) to rotate. The pulley k (532) rotates, driving the metal square tube (51) to slide and be inserted into the outside of the short side outer frame of the flip bottom frame (22), thereby locking the bottom plate system (2), and then manually installing the four corner supports (81) and the foldable ladder (91) to complete the opening of the tent; when closing the tent, first manually disassemble the four corner supports (81) and the foldable ladder (91), start the motor (71), the motor (71) rotates in the reverse direction, the spiral rotating shaft (76) rotates in the reverse direction, and moves in the reverse axial direction, the rotating arm (131) in the power transmission device three (773) moves in the reverse direction, first the metal sheet (134) is driven to rotate, and its power transmission pulley (7731) drives the four parts of the bottom plate locking system (5) to rotate. The synchronous pulley k (532) rotates in the opposite direction, driving the metal square tube (51) to slide in the opposite direction and return to the outside of the short side outer frame of the fixed bottom frame (21), thereby unlocking the bottom plate system (2); after the unlocking movement is completed, the rotating arm (131) in the second power transmission device (772) drives the metal sheet (134) to rotate in the opposite direction, and then the power transmission pulley (7721) of the second power transmission device (772) drives the four synchronous pulleys e (255) in the bottom frame system (2) to rotate in the opposite direction, thereby realizing that the reversible bottom frame (22) and the reversible top frame (32) are flipped and folded into the range of the fixed bottom frame (21), and at the same time, the long side of the tarpaulin (41) is flipped into the range of the fixed bottom frame (21);After the flipping movement is completed, the rotating arm (131) in the power transmission device 1 (771) moves in the opposite direction to the position of the metal sheet (134), and drives the metal sheet (134) to rotate in the opposite direction, thereby driving the power transmission pulley (7711) of the power transmission device 1 (771) to drive the two synchronous pulleys g (362) in the top frame system (3) to rotate in the opposite direction, and the top frame system falls. At the same time, the tarpaulin (41) is folded into four sections under the traction of the tarpaulin frame 1 (42) and the tarpaulin frame 2 (43), and the upper shell (61) and the bottom shell (27) of the tent are closed. The tent is closed. ;

Claims

1. A device in which a single power source drives multiple independent movements, comprising a motor, a spiral rotating shaft, a power transmission device, and a fixed base; The motor is fixed to a fixed base, and a synchronous pulley 1 is installed at the power output end of the motor; The spiral rotating shaft is composed of three parts that are fixedly connected, with screw rods of a certain length at both ends and a linear slide rail in the middle; the screw rod is sleeved on the screw rod nut, the screw rod nut is fixed to the base and cannot move, the linear slide rail axially passes through the inner hole of the force-bearing synchronous pulley, the force-bearing synchronous pulley is fixedly connected to the slider of the linear slide rail, the force-bearing synchronous pulley is fixedly connected to the outer ring of the bearing one, the inner ring of the bearing one is fixedly connected to the fixed base, and the force-bearing synchronous pulley is connected to the synchronous pulley one at the power output end of the motor through a synchronous belt; The power transmission device includes a rotating arm (metal straight rod) fixedly mounted on the screw and perpendicular to the rotating shaft, a second bearing perpendicular to the spiral rotating shaft, an inner ring of which is fixedly connected to the fixed base, the screw passes through its inner ring, and an outer ring of the second bearing is coaxially fixedly connected to the power transmission synchronous pulley, the power transmission synchronous pulley is fixedly connected to a rectangular metal sheet, the rectangular metal sheet is located within the rotation radius range of the inner hole and the outer circle of the power transmission synchronous pulley, and is parallel to the diameter direction of the outer circle of the power transmission synchronous pulley; The motor outputs power, and the synchronous pulley drives the force-bearing synchronous pulley to rotate. Since the position of the screw nut is fixed, the force-bearing synchronous pulley and the slider of the linear slide rail rotate, driving the linear slide rail and the screw to rotate and displace axially, so that the rotating arm will produce a spiral displacement. When the rotating arm rotates to the position of the rectangular metal sheet, it will move the metal sheet and drive the force-transmitting synchronous pulley to rotate together. When the rotating arm leaves the position of the rectangular metal sheet, the rectangular metal sheet and the force-transmitting synchronous pulley stop rotating; when the motor rotates in the opposite direction, the force-transmitting synchronous pulley also rotates in the opposite direction; the above device can realize the rotation of the force-transmitting synchronous pulley for a specific number of turns by changing the size of the metal sheet, and multiple rotating arms and the corresponding number of metal sheets and force-transmitting synchronous pulleys are installed within the range of the screw. The rotating arm moves different metal sheets at different times, so that multiple synchronous pulleys can rotate independently for a specific number of turns at the same time or staggered; the force-transmitting synchronous pulleys are connected to other motion systems with synchronous belts respectively, so that the independent motion of multiple motion systems can be realized.

2. A device for driving multiple independent movements with a single power source as claimed in claim 1, characterized in that: In addition to the combination of the synchronous pulley and the synchronous belt used in this embodiment, a combination of a sprocket and a chain or a combination of bevel gears may also be used.

3. A fully automatic opening and closing vehicle-mounted tent based on the principle of a single power source driving multiple independent motion devices, characterized in that: include: A floor system that can be connected to the car luggage rack through a base; A top frame system, located on the upper part of the bottom plate system; A tarpaulin system is located between the bottom plate system and the top cover system and wrapped around the outside of the bottom plate system and the top cover system; A bottom plate locking system, located at the four corners of the outer frame of the bottom plate system; A single power source drives multiple independently moving devices, which are fixed in the base plate system and connected to the power system, the top cover system, the base plate system, and the base plate locking system by a synchronous belt; The shell opening and closing system is located around and on the top of the top frame system; The retractable four-corner support rods and the foldable ladder are installed at the four corners of the bottom plate of the tent when it is opened, and at the side door position of the tarpaulin, and need to be manually installed and removed.

4. A fully automatic opening and closing vehicle-mounted tent based on the principle of a single power source driving multiple independent motion devices according to claim 3, characterized in that: The base plate system comprises: Fixed bottom frame, one in number, rectangular metal frame structure, located directly above the roof luggage rack, with the long side parallel to the vehicle body, and can be connected to the roof luggage rack; There are two reversible bottom frames, which are of rectangular metal frame structure and symmetrically hinged on both sides of the long sides of the fixed bottom frame. The size of the long sides is consistent with that of the fixed bottom frame, and the profile specifications of the short side outer frame are consistent with those of the fixed bottom frame. The reversible bottom frame can be rotated along the hinge point with the long side of the fixed bottom frame. The reversible bottom frame can be opened along the rotation axis and can form a square bottom frame of the tent together with the fixed bottom frame. The reversible bottom frame can be rotated 180 degrees along the rotation axis and can be completely folded into the range of the fixed bottom frame. Hinges, four in number, symmetrically mounted on the top surfaces of the four corners of the fixed bottom frame, connecting the fixed bottom frame and the short side of the reversible bottom frame, and the reversible bottom frame rotates around the hinges; There are four rotating rod groups, each group consists of two metal rods hinged end to end, respectively located at the four corners of the fixed bottom frame, one end is hinged to the short side outer frame of the fixed bottom frame, and the other end is hinged to the short side outer frame of the flip bottom frame, and together with the hinge, the flip bottom frame can be opened and folded; Synchronous belt pulley group one, there are four groups, each group consists of five synchronous belt pulleys fixed to the fixed bottom frame and capable of rotating freely, which are respectively installed on the inner sides of the four corners of the fixed bottom frame, and function to adjust the transmission ratio of the synchronous belt pulleys, the synchronous belt pulley a is at the outermost side, and is fixedly connected to one end of the rotating rod group hinged to the fixed bottom frame, the synchronous belt pulley b is connected to the synchronous belt pulley a by a synchronous belt, the synchronous belt pulley c is coaxially fixedly connected to the synchronous belt pulley b, and is fixed to the fixed bottom frame and can rotate freely, the synchronous belt pulley d is connected to the synchronous belt pulley c by a synchronous belt, the synchronous belt pulley e is coaxially fixedly connected to the synchronous belt pulley d, and is fixed to the fixed bottom frame and can rotate freely, the synchronous belt pulley e rotates, which can drive the rotating rod group to rotate, and pull the flippable bottom frame to rotate around the long side of the fixed bottom frame; the above structure can also use a combination of sprockets and chains, a combination of gears to replace the above synchronous belt pulley group; A hard floor is fully laid inside the fixed bottom frame and the reversible bottom frame and is flush with the top surface of the frame; The bottom shell of the tent is made of plastic and is wrapped around the bottom and surrounding of the fixed bottom frame to form the bottom shell of the entire tent.

5. A fully automatic opening and closing vehicle-mounted tent based on the principle of a single power source driving multiple independent motion devices according to claim 3, characterized in that: The top frame system comprises: A fixed top frame, one in number, a metal frame, with the same outer dimensions as the fixed bottom frame, located directly above the fixed bottom frame; There are two reversible top frames, made of U-shaped steel wire, with the same outer dimensions as the reversible bottom frames, symmetrically installed on both sides of the long sides of the top frame and directly above the two reversible bottom frames, with both ends hinged to the four corners of the top frame. When the reversible top frame is opened, it can form the top frame of the tent together with the fixed top frame. The reversible top frame can be flipped 180 degrees along the hinge points at both ends and completely folded into the fixed top frame; Two upper slide rails, each comprising a slide rail and a slider, are fixedly installed on the outer side of the short side of the top frame (perpendicular to the direction of the vehicle body); There are two lower slide rails, each of which includes a slide rail and a slider, and are fixedly installed on the outer side of the short side of the fixed bottom frame, corresponding to the upper slide rail at one position; Lifting bracket groups, two in number, each group is composed of three pairs of cross-crossed metal rods hinged at the midpoint and hinged end to end, installed between the upper slide rail 1 and the lower slide rail, with the uppermost end hinged to the outer side of the short side outer frame of the top frame, and the other end hinged to the slider of the upper slide rail 1, and the lowermost end hinged to the outer side of the short side outer frame of the fixed bottom frame, and the other end hinged to the slider of the lower slide rail; Synchronous pulley group 2, the number is two groups, each group consists of three synchronous pulleys, the synchronous pulley f is coaxially fixedly connected with the synchronous pulley g, the connecting shaft passes through the short side outer frame of the fixed bottom frame, is located on the left side of the lower slide rail, and can rotate freely, the synchronous pulley f is located on the outside, the synchronous pulley g is located on the inside, and the synchronous pulley h is installed on the outside of the short side outer frame of the fixed bottom frame and directly below the synchronous pulley f, and can rotate freely; Synchronous pulleys 1, two in number, are respectively installed on the outer side of the fixed bottom frame on the right side of the lower slide rail, can rotate freely, and are connected to the synchronous pulleys f and h by a synchronous belt; There are two synchronous belts, which are respectively connected to the synchronous pulley f, the synchronous pulley h and the synchronous pulley 1 in the synchronous pulley group 2, and are hinged to the lower slider. The rotation of the synchronous belt 1 can drive the lower slider to slide, and the lower slider drives the lower movable end of the lifting bracket group to slide, and the lifting bracket group supports the fixed top frame to rise and fall.

6. A fully automatic opening and closing vehicle-mounted tent based on the principle of a single power source driving multiple independent motion devices according to claim 3, characterized in that: The tarpaulin system comprises: The tarpaulin is surrounded by the bottom plate system and the outside of the top frame system, and is in a rectangular shape when opened, and is provided with doors and windows; when closed, it can be folded in a zigzag shape into four sections along the height direction; A tarpaulin frame, in two groups, each group is formed by four sections of support rods hinged end to end, can be folded in a zigzag shape, symmetrically installed on the inner side of the tarpaulin, fit with the tarpaulin, with the lower end hinged to the long side of the flippable bottom frame, and the upper end hinged to the long side of the flippable top frame; There are two tarpaulin frames, each of which is composed of four support rods hinged end to end, can be folded in a zigzag shape, and are symmetrically installed on the inner side of the tarpaulin, fit with the tarpaulin, with the lower end hinged to the short side of the fixed bottom frame and the upper end hinged to the short side of the fixed top frame.

7. A fully automatic opening and closing vehicle-mounted tent based on the principle of a single power source driving multiple independent motion devices according to claim 3, characterized in that: The bottom plate locking system comprises: Four metal square tubes, the inner cross-sectional dimensions of which are slightly larger than the outer cross-sectional dimensions of the main frame on the short side of the fixed bottom frame, and are nested outside the four corners of the main frame on the short side of the fixed bottom frame; Rack 1, number is four, fixedly connected to the aluminum square tube; There are four synchronous pulley groups three, each group consists of two synchronous pulleys, the synchronous pulley j is meshed with the rack one, the synchronous pulley k is coaxially fixedly connected with the synchronous pulley j, the positions of the synchronous pulley j and the synchronous pulley k are fixed on the fixed bottom frame, but can rotate freely; the synchronous pulley k rotates, driving the synchronous pulley j to rotate, and then driving the rack one and the metal square tube to slide together.

8. A fully automatic opening and closing vehicle-mounted tent based on the principle of a single power source driving multiple independent motion devices according to claim 3, characterized in that: The housing opening and closing system comprises: An upper shell, wrapped around the upper part and surrounding of the top frame, made of plastic, slightly larger than the plastic bottom shell, and together with the plastic bottom shell, forming a plastic shell of the tent; Synchronous pulley nine, two in number, fixedly mounted on the outer side of the midpoint of the short side outer frame of the top frame, and freely rotatable; Rack 2, two in number, with a sliding groove in the middle of the rack, installed on the upper part of the synchronous pulley 9, meshing with the synchronous pulley 9, and hinged with the slider of the upper slide rail 1 on the right side; Rack three, two in number, with a sliding groove in the middle of the rack, installed at the lower part of the synchronous pulley nine, and meshing with the synchronous pulley nine; Upper slide rails 2, four in number, with sliders, fixedly mounted on the outside of the short side outer frame of the top frame, near the four corners; Push-pull rods 1, numbered four, are L-shaped metal rods, the bent ends of which extend into the sliding grooves of the rack 2 and the rack 3 respectively, and the other ends are connected to the slider of the upper slide rail 2; There are four rotating rods one, which are metal straight rods, one end of which is hinged to the outer side of the short side outer frame of the fixed top frame, and the other end is hinged to the midpoint of the rotating rod two; Rotating rods 2, numbered as four, are positioned corresponding to the rotating rods 1, are metal straight rods, are twice as long as the rotating rods 1, one end of which is hinged to the force transmission rod 1 and the slider of the slide rail 3, the midpoint is hinged to one end of the rotating rod 1, and the other end is hinged to the inner sides of the four corners of the upper housing; There are four pull ropes, which are respectively installed on the inner sides of the four corners of the upper shell, one end of which is connected to the second rotating rod, and the other end is connected to the short side of the flippable top frame.

9. A fully automatic opening and closing vehicle-mounted tent based on the principle of a single power source driving multiple independent motion devices according to claim 3, characterized in that: Devices that drive multiple independent motions from a single power source include: A motor, the number of which is one and the position of which is fixed in the fixed bottom frame; A synchronous pulley 8, fixedly mounted on the power output end of the motor; Gear 1, fixedly mounted on the power output end of the motor; Gear 2, meshing with the gear 1, fixed on the fixed bottom frame, and freely rotatable; A synchronous pulley nine, coaxially connected to the gear two, fixed on the fixed bottom frame, and freely rotatable; The motor outputs power to drive the synchronous pulley 8 and the gear 1 to rotate, thereby driving the gear 2 and the synchronous pulley 9 to rotate; There are two spiral rotating shafts, which are symmetrically installed on both sides of the symmetry axis of the long side of the fixed bottom frame and are parallel to the long side of the fixed bottom frame. The screw nuts are fixedly connected to the fixed bottom frame, and the two force pulleys are respectively connected to the synchronous pulley eight and the synchronous pulley nine by synchronous belts; There are ten power transmission devices in total, divided into three types: two power transmission devices one, four power transmission devices two, and four power transmission devices three; The power transmission device 1, which is two in number and is respectively located at the screw position at one end of the two spiral rotating shafts, and the power transmission pulleys thereof are respectively connected to the two synchronous pulleys g in the top frame system by synchronous belts; The second power transmission device, which is four in number, is located at the screw positions at both ends of the two spiral rotating shafts, and the power transmission pulleys thereof are respectively connected to the four synchronous pulleys e in the bottom frame system with synchronous belts; The power transmission device three, which is four in number, is respectively located at the screw positions at both ends of the two spiral rotating shafts, and its power transmission pulleys are respectively connected to the four synchronous pulleys k in the base plate locking system with synchronous belts.

10. A fully automatic opening and closing vehicle-mounted tent based on the principle of a single power source driving multiple independent motion devices according to claim 3, characterized in that: The retractable four-corner support rods and the foldable ladder, the number of the retractable support rods is four, which are load-bearing rods with retractable length. After the reversible bottom frame is opened and the bottom frame system is locked, they are connected to the four corners of the reversible bottom frame to support the main weight of the tent when in use and can be manually disassembled; the foldable ladder is detachable and installed at the side door of the reversible bottom frame for use in entering and exiting the tent and can be manually disassembled.

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