Vehicle capable of pushing out rear wheels in rotating mode

Abstract

Mainly comprises a rear wheel, a rear wheel frame, a supporting arm, a saddle, a middle frame, a front wheel frame, a folding handlebar, a quick release screw, a front fork, a front wheel, pedals and accessories, and is characterized in that the front wheel frame is formed by connecting a front fork steering vertical pipe with a beam, a transverse shaft hole is formed in the rear end of the front wheel frame, and the transverse hole is hinged to a transverse hole formed in the front end of the middle frame; a transverse hole in the rear end of the middle frame is hinged to a transverse hole in the front end of the rear wheel frame, a transverse hole is formed in the middle of the middle frame and hinged to a transverse hole in the lower end of the supporting arm, a transverse hole in the upper end of the supporting arm is hinged to the rear end of the saddle, the front wheel frame, the middle frame and the rear wheel frame are rotationally folded to be in a Z shape, and the saddle, the supporting arm and the middle frame are rolled up. The low vehicle body is used as a three-wheel or four-wheel vehicle, so that a computer can conveniently control a motor to realize automatic folding, and the vehicle has a wide market prospect.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of car of rotary push rear wheel, which is light, convenient and suitable for carrying. BACKGROUND

[0002] The progress and development of science and technology provide many kinds of transportation tools for people's life, such as urban rail, public bus and other public transportation tools. It is time-consuming and laborious to change the distance of transfer, so a vehicle is provided for carrying, transferring or riding between short distances when riding various large transportation tools. Therefore, a rotary push rear wheel car is produced on the basis of box-type tricycle (Patent No. ZL98248138.1), hand luggage type folding car (Patent No. 201210349875.3, 201110242303.0), automatic buckling multi-wheel car (Patent No. 202321506685.8), hand luggage type two-wheel folding car (Patent No. 202420989404.7) and other vehicles. Compared with the structure, it is more simple and stable, has the characteristics of simple operation and quickness, and has the advantages of small volume after folding. As a low car body after automatic folding of three-wheel and four-wheel car, it is convenient to become a computer-controlled intelligent vehicle. It has important significance for changing the traffic congestion of city and facilitating people's travel, so it has broad market prospect. SUMMARY

[0003] The utility model discloses a kind of folding bicycles, which is characterized by a rotating rear wheel pushing bicycle, comprising a rear wheel, a rear wheel frame, a support arm, a saddle, a support rod, an intermediate frame, a front wheel frame, a handlebar, a quick-release screw, a front fork, a front wheel, a pedal, a middle shaft support rod, an intermediate sprocket and accessories.

[0004] A radial sliding groove can be opened on the rear end of the intermediate frame at the rear end of the intermediate frame and the front end of the rear wheel frame, and the front end of the rear wheel frame can be provided with a clamping groove. A pin is arranged in the sliding groove of the intermediate frame. The front end of the rear wheel frame is pushed to move away from the pin. When the pin slides back into the groove coinciding with the rear end of the intermediate frame and the front end of the rear wheel frame, the rear wheel frame is clamped, thereby achieving positioning.

[0005] The support arm is hinged at the middle part of the rear wheel frame beam, and the other end of the support arm is hinged at the middle part of the rear wheel frame beam, so that the support arm, the rear wheel frame, the middle frame and the support arm are hinged in sequence to form a four-bar linkage, and the support arm is provided with a shock absorber, which is generally composed of a rod and a spring, and has shaft holes at both ends and a variable length, so that the rear wheel frame has a shock absorbing effect, and the rear end of the middle frame is hinged at the lower end of the support arm, and a radial sliding groove is formed in the rear end of the middle frame, and a clamping groove is formed in the lower end of the support arm, and a pin is arranged in the sliding groove of the middle frame, and the lower end of the support arm is rotated to push the pin out of the groove, and then the pin is slid back into the groove at the lower end of the support arm, and the support arm is clamped.

[0006] The middle shaft support arm and the middle sprocket are also hinged on the hinge shaft of the middle frame and the rear wheel frame, the other end of the middle shaft support arm is fixedly connected with a horizontal shaft seat, the middle shaft is arranged in the horizontal shaft seat, the sprocket is arranged on the middle shaft, and the folding pedal assembly is arranged on the middle shaft.

[0007] The handlebar vertical pipe is divided into an upper vertical pipe and a lower vertical pipe, the lower end of the upper vertical pipe is inserted into the upper end of the lower vertical pipe, the side surface has a sliding and overlapping horizontal hole, and the lower end of the lower vertical pipe is hinged with the upper end of the front fork in a horizontal manner.

[0008] The handlebar is composed of a cross handle and a vertical pipe, and has a two-L shape, the lower end of the handlebar vertical pipe is inserted into the front fork vertical pipe in a slidable manner, the front fork vertical pipe has a hole, two sliding sleeves are arranged on the upper and lower ends of the front fork vertical pipe, the sliding sleeves are inserted into the two vertical pipes of the front fork, a damping spring is sleeved between the sliding sleeves and the lower ends of the vertical pipes, the vertical pipes can slide along the sliding sleeves to form a front fork with damping effect, the corresponding handlebar vertical pipe also has a hole, the sliding handlebar vertical pipe is overlapped with the hole, and the quick release screw is passed through to fix; the lead screw can be fixed at the upper and lower ends of the handlebar vertical pipe, the corresponding nut is sleeved on the lead screw, and the nut is located in the shaft support of the front fork steering vertical pipe, the gear on the nut is engaged with the gear arranged on the motor shaft, and the front fork is integrally fixed, so that the nut is driven to rotate in the forward and reverse directions by controlling the motor, the lead screw moves up and down, and the handlebar is raised or lowered.

[0009] The pulley is installed on the corresponding transverse hinge shaft of the front wheel frame, the seat, the support arm, the middle frame and the rear wheel frame beam, and is fixed on the front wheel frame, the seat, the support arm, the middle frame and the rear wheel frame beam respectively, and can rotate with the front wheel frame, the seat, the support arm, the middle frame and the rear wheel frame. A fixed point is arranged on the side of the pulley to fix one end of the rope, the rope is wound around the pulley to the other fixed point, the diameter of the pulley is calculated according to the angle proportion of the mutual rotation of the components, and the front wheel frame, the seat, the support arm, the middle frame, the rear wheel frame and the seat are connected in sequence by the rope to form linkage when the seat rotates. The worm wheel disc is installed on the transverse hinge shaft of the shaft hole at the rear end of the middle frame and the front end of the rear wheel frame beam, the worm wheel disc is transversely connected and fixed with the rear wheel frame beam, and the corresponding worm shaft is integrally fixed on the rear end of the middle frame. Thus, the rotation of the motor drives the rotation of the worm shaft and the worm wheel disc, thereby driving the rotation of the rear wheel frame.

[0010] Two steering vertical pipes are added transversely at the front end of the front wheel frame, two front fork arms are fixed radially, the top ends of the two rods are hinged, a parallel connecting rod is formed, the handlebar vertical pipe is inserted into the front fork steering vertical pipe, the lower end of the front fork steering vertical pipe is also radially fixed with a swing rod, the other end of the rod is hinged with the middle part of the connecting rod, and the swing of the connecting rod is driven by the swing of the handlebar swing rod, so that synchronous steering of the two front wheels is realized, and the two front wheels are arranged as a reverse tricycle.

[0011] The rear wheel rod is hinged at the transverse shaft at the front end of the rear wheel frame beam, one end of the shock absorber is hinged with the transverse shaft arranged on the rear wheel frame, and the other end is hinged transversely on the rear wheel rod, forming a triangular shape, and realizing the shock absorption effect of the rear wheel.

[0012] A gear is arranged on the lower end of the front fork steering pipe and is engaged with the corresponding gear on the steering motor shaft fixed at the front end of the front wheel frame beam. The gear of the steering motor rotates to drive the rotation of the gear on the front fork, thereby rotating the front fork.

[0013] A gear is arranged on the front fork steering vertical pipe and is connected as a whole, and the corresponding gear is connected with the steering motor shaft integrally fixed at the front lower end of the front wheel frame beam. Thus, the rotation of the motor shaft can also be controlled for steering.

[0014] A hook is arranged on the battery box and hung on the middle frame beam. When not in use, it can be removed. One end of the battery box is arranged with a clamping groove clamped into the horizontal rod at the front end of the middle frame beam, the other end is provided with a transverse hole inserted into a quick release screw and screwed with a nut on the other side. A battery box hanging hole is arranged on the rear wheel frame, and the battery is installed in the space of the battery box and the rear wheel frame arm.

[0015] The upper end of the pedal rod is hinged on the front wheel frame beam, and the pedal plate hinged on the pedal rod can also be fixed on the front wheel frame beam or the middle frame.

[0016] The rear wheel or the front wheel adopts a wheel hub motor, i.e. the electric motor is installed at the position of the wheel hub, or a conventional middle-mounted motor or engine mode can be used. The conventional motor control is generally composed of an output shaft, a reduction gear set, a position feedback potentiometer, a direct current motor, a control circuit and the like, and a corresponding program can be compiled for control.

[0017] The rear wheel frame is turned backward, the frame is locked and the footrest is turned out, the handlebar is opened, the rear of the vehicle is formed for a person to ride, the power component and the brake disc are controlled through the pedal or the handlebar handle through the control line to make the vehicle move forward or stop, and the vehicle can be carried after being folded. The vehicle has the advantages that as a three-wheeled or four-wheeled vehicle, the low vehicle body after automatic folding is convenient to become an intelligent vehicle controlled by a computer, and the intelligent vehicle can automatically go back and forth between the positions of getting on and off the vehicle and a garage where the vehicle is parked, so that the user is convenient, and the urbanization is more standardized and neat. BRIEF DESCRIPTION OF DRAWINGS

[0018] ATTACHMENT Figure 1 It is a front view of the utility model.

[0019] ATTACHMENT Figure 2 It is a top view of the utility model.

[0020] ATTACHMENT Figure 3 It is a front view of the utility model after being folded.

[0021] ATTACHMENT Figure 4 It is a top view of the utility model after being folded.

[0022] ATTACHMENT Figure 5 It is a schematic view of the utility model.

[0023] ATTACHMENT Figure 6 It is a folding schematic view of the utility model.

[0024] ATTACHMENT Figure 7 It is a front view of the utility model linkage.

[0025] ATTACHMENT Figure 8 It is a front view of two front wheels of the utility model.

[0026] ATTACHMENT Figure 9 It is a top view of two front wheels of the utility model.

[0027] ATTACHMENT Figure 10 It is a top view of two rear wheels of the utility model. DETAILED DESCRIPTION

[0028] The utility model will be further described below in combination with several examples and the drawings.

[0029] Figure 1 、 Figure 2In the example, 1. rear wheel, 2. rear wheel frame, 3. support arm, 4. saddle, 5. foot pedal, 6. middle frame, 7. front wheel frame, 8. handlebar, 9. quick release screw, 10. front fork, 11. front wheel, 12. footrest, 13. support rod, 14. middle shaft support rod, 15. middle chain wheel and accessories, the front wheel frame (7) is connected with the steering vertical pipe by the front end of the long longitudinal beam, and the rear end has a transverse shaft hole structure, the front fork (10) vertical pipe is installed in the steering vertical pipe, the front wheel (11) is installed on the lower end shaft seat of the front fork (10), the middle frame (6) is composed of two parallel longitudinal beams and front and rear end horizontal rods, the rear wheel frame (2) is branched at the rear end of the longitudinal beam, and a shaft seat is arranged at the rear end of the branch, and the rear wheel (1) is installed on the shaft seat, the rear end transverse hole of the front wheel frame (7) is hinged with the transverse hole opened at the front end of the middle frame (6), the rear end of the middle frame (6) is opened with a transverse hole and hinged with the transverse hole opened at the front end of the rear wheel frame (2), the front wheel frame (7), the middle frame (6) and the rear wheel frame (2) are folded in the shape of Z, the middle frame (6) is also opened with a transverse hole in the middle part and hinged with the lower end of the support arm (3), the upper end of the support arm (3) is also opened with a transverse hole and hinged with the rear end of the saddle (4), the saddle (4), the support arm (3) and the middle frame (6) are sequentially rolled up and unfolded, the foot pedal (5) is hinged on the foot pedal rod at the lower end of the middle frame (6), and the middle frame (6) is provided with a stop rod at the transverse hinge shaft of the front wheel frame (7) and the middle frame (6), so that the excessive rotation of the middle frame (6) is limited, and the middle frame (6) is also provided with corresponding stop blocks at the transverse hinge positions of the lower end of the support arm (3), the upper end of the support arm (3), the rear end of the middle frame (6) and the front end of the rear wheel frame (2), so that the excessive rotation of these positions is prevented, the middle frame (6) is provided with a transverse hole at the transverse hinge shaft of the front wheel frame (7) and the middle frame (6), the rear end of the middle frame (6) and the front end of the rear wheel frame (2), the middle of the middle frame (6) and the lower end of the support arm (3), and the upper end of the support arm (3) and the rear end of the saddle (4), after the rotation of these parts is limited by the stop blocks, the transverse holes of these parts coincide, and then the rod of the quick release screw (9) is inserted through the transverse circular hole to the corresponding nut on the other side and is tightened, so that the rotation between the front wheel frame (7), the middle frame (6), the rear wheel frame (2), the support arm (3) and the saddle (4) is prevented, and the quick release screw (9) has a rotating small handle at one end and a long rod with threads at the other end.

[0030] The support rod (13) is hinged at one end in the transverse hole in the middle of the support arm (3), and the other end of the support rod (13) is hinged with the middle part of the beam of the rear wheel frame (2), so that the support rod (13), the rear wheel frame (2), the middle frame (6) and the support arm (3) are sequentially hinged to form a four-bar linkage, the support rod (13) can also be a shock absorber, so that the rear wheel frame (2) has a damping effect, the middle frame (6) is opened with a radial sliding groove at the rear end, the support arm (3) is opened with a clamping groove at the lower end, and the middle frame (6) is provided with a pin shaft in the sliding groove.

[0031] In the middle frame (6), rear wheel frame (2) hinge shaft, also hinge shaft support arm (14), intermediate sprocket (15), the other end of the shaft support arm (14) is fixed transverse shaft seat, the shaft seat is installed in the middle shaft, the shaft is installed on the sprocket, the shaft is provided with folding pedals (12) group, sprocket and rear wheel (1) flywheel through the intermediate sprocket (15) with chain connection.

[0032] Handlebar (8) vertical tube is divided into upper vertical tube and lower vertical tube, the lower end of the upper vertical tube is inserted into the upper end of the lower vertical tube, and the side has a sliding rear coincident transverse hole, and the lower end of the lower vertical tube is transversely hinged with the upper end of the front fork (10), and the fast release screw (9) is also used to pass through the corresponding nut on the other side and is tightened. Pedal (5) is horizontally hinged on the pedal support rod at the lower end of the front wheel frame (7) beam.

[0033] The battery box is installed on the rear wheel frame (2) beam, and the battery is installed in the space between the battery box and the rear wheel frame (2) beam. The existing hub motor is used, that is, the motor is installed on the hub position. Referring to the attached Figure 1 It is a front view of the example, Figure 2 It is a top view of the example, the attached Figure 3 It is a folding front view of the example, Figure 4 It is a folding top view of the example, the attached Figure 5 It is a schematic view of the example, Figure 6 It is a folding schematic view of the example.

[0034] Figure 7In the example, the automatic linkage mode is adopted, the pulleys are installed on the corresponding transverse hinge shafts of the front wheel frame (7), the seat (4), the support arm (3), the intermediate frame (6), and the rear wheel frame (2) beam, and are fixed on the respective front wheel frame (7), the seat (4), the support arm (3), and the rear wheel frame (2) beam to rotate with the front wheel frame (7), the seat (4), the support arm (3), the intermediate frame (6), and the rear wheel frame (2). The pulley side is provided with a fixed point to tie one end of the rope, the rope is wound around the pulley to the other fixed point, the diameter of the pulley is calculated according to the angle proportion of the mutual rotation of each component, and the front wheel frame (7), the seat (4), the support arm (3), the intermediate frame (6), the rear wheel frame (2), and the seat (4) are connected in sequence by the rope to form linkage when rotating. The worm disc is installed on the transverse hinge shaft of the shaft hole at the rear end of the intermediate frame (6) and the front end of the rear wheel frame (2) beam, the worm disc is transversely connected and fixed with the rear wheel frame (2) beam, the corresponding worm connects the motor shaft which is integrally fixed at the rear end of the intermediate frame (6). Thus, the rotating motor drives the worm and the worm disc to rotate, thereby driving the rear wheel frame (2) beam to rotate. The handlebar (8) is composed of a cross handle and a stand pipe in two L shapes. The handlebar (8) stand pipe lower end is inserted into the front fork (10) stand pipe which is slidable. The front fork (10) stand pipe has a hole, two sleeves are fixed at the upper and lower ends of the front fork (10) steering stand pipe, the sleeves are inserted into the two stand pipes of the front fork (10) respectively, a damping spring is sleeved between the sleeve and the lower end of the stand pipe, and the stand pipe can slide along the sleeve to reduce the damping of the front fork (10). The handlebar (8) stand pipe also has a hole corresponding to the hole, and the sliding handlebar (8) stand pipe allows the hole to coincide, so that the quick release screw (9) can be fixed. The gear is sleeved on the steering pipe of the front fork (10) and connected as a whole, and the corresponding gear connecting steering motor shaft is integrally fixed at the front lower end of the front wheel frame (6) beam. Thus, the steering can be performed by controlling the rotation of the motor shaft. The battery box is provided with a hook which is hung on the intermediate frame (6) beam and can be removed when not in use. One end of the battery box is provided with a clamping groove which is clamped into the front end horizontal rod of the intermediate frame (6) beam, and the other end is provided with a transverse hole which is inserted into the quick release screw (9) rod and tightened with the nut on the other side. Referring to the attached Figure 7 It is the front view of the example.

[0035] Figure 8In the example, the use of two front wheels (11) of the inverted three-wheel arrangement, increase the backrest to improve ride comfort, in the front wheel frame (7) front end transverse increase two steering vertical pipe, two front fork (10) arm radial fixed rod, two rod top end with connecting rod both ends hinged, forming a parallel connecting rod, handlebar (8) vertical pipe lower end inserted into the front wheel frame (7) steering vertical pipe front fork (10) steering vertical pipe lower end is also radially fixed swing rod, swing rod the other end is hinged in the middle of the connecting rod, rotating handlebar (8) swing rod drive connecting rod swing, realize two front wheels (11) synchronous steering; in the front fork (10) steering pipe lower end is provided with a gear and the front wheel frame (7) beam front end fixed steering motor shaft corresponding gear mesh, motor drive gear rotation, drive the front fork (10) gear rotation, thus rotating the front fork (10); in the rear wheel frame (2) beam front end transverse shaft hinged rear wheel rod, shock absorber one end hinged rear wheel frame (2) set up the transverse shaft, the other end is transversely hinged on the rear wheel rod, forming a triangular shape, the backrest is hinged to the rear of the saddle, the front and rear ends of the screw rod are fixed on the vertical pipe of the handlebar (8), the nut corresponding to the screw rod is located in the shaft bracket of the front fork (10) steering vertical pipe, the nut gear meshing with the gear mounted on the motor shaft is also integrally fixed on the front fork (10), so that the control motor drives the nut to rotate forward and reverse, the screw rod moves up and down, and the handlebar (8) handle rises or falls. Here, the footboard (5) is horizontally fixed on the footboard support rod at the lower end of the front wheel frame (7), the battery box is fixed below the footboard (5), the fence is arranged on the rear wheel rod beam to be used as a basket, and the like Figure 8 The front view of the example, Figure 9 The top view of the example.

[0036] Figure 10 In the example, the three-wheel arrangement of two rear wheels (1) is adopted, two rear wheels (1) are installed side by side on the shaft of the rear wheel frame (2), a radial sliding groove is opened on the rear end of the middle frame (6) at the transverse hinge between the rear end of the middle frame (6) and the front end of the rear wheel frame (2), a clamping groove is opened at the front end of the rear wheel frame (2), a pin shaft is arranged in the sliding groove of the middle frame (6), the front end of the rear wheel frame (2) is turned to push away the pin, and when the pin slides back into the groove coinciding with the rear end of the middle frame (6) and the rear wheel frame (2), the rear wheel frame (2) is clamped, which plays a positioning role, and the like Figure 10 The top view of the example.

[0037] The four-wheel arrangement of two front wheels (14) and two rear wheels (1) is adopted, which further increases the stability of the vehicle running and provides comfort.

[0038] The utility model provides a kind of suitable vehicle for walking, simple structure, light weight, easy to operate, it is suitable for people in urban life to carry when riding various public transport tools such as urban rail, bus, train, ship, airplane etc., transfer or other short distance interval riding, the vehicle for use, the stress of the designed vehicle body is reasonable, with the characteristics of multiple, flexible change and easy to expand, easy to carry, can be carried on shoulder, also can use exposed wheel to push, pull and walk.The interchangeability of various components formed is strong, and a variety of varieties can be formed by combination to meet different use purposes of people, with beautiful appearance, compact, regular and light weight, and suitable speed, meeting the needs of people's daily study, life and work, the parts of the vehicle can use existing mature technology and process, easy to mass production, it has important significance for changing urban traffic congestion and facilitating people's travel, and it adopts manpower and electric drive which is beneficial to environmental protection, in line with the low-carbon travel advocated in today's world, so it has broad market prospect.

Claims

1. A rotating rear wheel-launching vehicle, mainly composed of a rear wheel (1), a rear wheel frame (2), a support arm (3), a seat (4), foot pedals (5), a center frame (6), a front wheel frame (7), handlebars (8), quick-release screws (9), a front fork (10), a front wheel (11), foot pedals (12), a support rod (13), a bottom bracket support rod (14), a center sprocket (15), and accessories, characterized in that... The front wheel frame (7) is formed by connecting the front end of a long longitudinal beam to the steering riser and having a transverse axle hole at the rear end. The riser of the front fork (10) is inserted into the steering riser. The front wheel (11) is mounted on the axle seat at the lower end of the front fork (10). The intermediate frame (6) is formed by two parallel longitudinal beams and front and rear crossbars. The rear wheel frame (2) is formed by the bifurcation of the rear end of the longitudinal beam and has an axle seat at the rear end of the bifurcation. The rear wheel (1) is mounted on the axle seat. The transverse hole at the rear end of the front wheel frame (7) is hinged to the transverse hole at the front end of the intermediate frame (6). The transverse hole at the rear end of the intermediate frame (6) is hinged to the transverse hole at the front end of the rear wheel frame (2). The transverse hole in the middle of the intermediate frame (6) is also hinged to the transverse hole at the front end of the rear wheel frame (2). The lower end of the support arm (3) is horizontally hinged, and the upper end of the support arm (3) is also horizontally hinged to the rear end of the seat (4). When the front wheel frame (7), the middle frame (6) and the rear wheel frame (2) are rotated, they fold like a Z. The seat (4), the support arm (3) and the middle frame (6) are rolled up and unfolded in sequence. At the horizontal hinge axis of the front wheel frame (7) and the middle frame (6), there is a stop bar on the middle frame (6). Similarly, at the horizontal hinge point between the middle frame (6) and the lower end of the support arm (3), at the horizontal hinge point between the upper end of the support arm (3) and the rear end of the seat (4), and at the horizontal hinge point between the rear end of the middle frame (6) and the front end of the rear wheel frame (2), there are corresponding stops.

2. The vehicle with a rotating rear wheel ejection mechanism according to claim 1, characterized in that... A transverse hole is provided at the transverse hinge shaft of the front wheel frame (7), the transverse hinge of the rear end of the intermediate frame (6) and the front end of the rear wheel frame (2), the transverse hinge of the middle of the intermediate frame (6) and the lower end of the support arm (3), and the transverse hinge of the upper end of the foot pedal (5) and the rear end of the seat (4). After the transverse holes overlap, the rod of the quick-release screw (9) is inserted through the transverse hole to the corresponding nut on the other side and tightened.

3. A vehicle with a rotating rear wheel ejection mechanism according to claim 1, characterized in that... One end of the support rod (13) is hinged in the transverse hole in the middle of the support arm (3), and the other end of the support rod (13) is transversely hinged to the middle of the rear wheel frame (2) beam.

4. A vehicle with a rotating rear wheel ejection mechanism according to claim 1, characterized in that... The rear end of the intermediate frame (6) and the lower end of the support arm (3) are laterally hinged. A radial groove is opened on the rear end of the intermediate frame (6), and a slot is opened at the lower end of the support arm (3). A pin is installed in the groove of the intermediate frame (6).

5. A vehicle with a rotating rear wheel ejection mechanism according to claim 1, characterized in that... The rear end of the intermediate frame (6) and the front end of the rear wheel frame (2) are laterally hinged. A radial groove is opened on the rear end of the intermediate frame (6), and a slot is opened on the front end of the rear wheel frame (2). A pin is installed in the groove of the intermediate frame (6).

6. A vehicle with a rotating rear wheel ejection mechanism according to claim 1, characterized in that... Pullers are installed on the transverse hinge shafts of the front wheel frame (7), seat (4), support arm (3), intermediate frame (6), and rear wheel frame (2) beams respectively. The pulleys are fixed transversely to their respective front wheel frame (7), seat (4), support arm (3), and rear wheel frame (2) beams. There are fixed points on the side of the pulleys to tie one end of the rope. The rope passes around the pulley to another fixed point and is tied there. The diameter of the pulley is calculated according to the rotation angle ratio between each component. The front wheel frame (7), seat (4), support arm (3), intermediate frame (6), rear wheel frame (2), and seat (4) are connected in sequence by ropes to form a linkage.

7. A vehicle with a rotating rear wheel ejection mechanism according to claim 1, characterized in that... The worm gear is installed on the rear end of the intermediate frame (6) and the front end of the rear wheel frame (2) beam, and is horizontally hinged to the shaft. The worm gear is horizontally connected to the rear wheel frame (2) beam, and the corresponding worm is connected to the motor shaft and is fixed at the rear end of the intermediate frame (6).

8. A vehicle with a rotating rear wheel ejection mechanism according to claim 1, characterized in that... Two steering risers are added laterally to the front of the front wheel frame (7), and two front fork (10) arms are radially fixed rods. The tops of the two rods are hinged at both ends of the connecting rod to form a parallel connecting rod. The lower end of the handlebar (8) riser is inserted into the steering riser of the front wheel frame (7), and the lower end of the steering riser of the front fork (10) is also radially fixed to the swing rod. The other end of the swing rod is hinged to the middle of the connecting rod.

Images