CN108860421B - Folding vehicle - Google Patents

Abstract

The present invention belongs to the technical field of folding electric vehicles, and particularly refers to a folding vehicle, comprising a frame, a seat cushion, a handlebar, and front and rear wheel assemblies, wherein the front and rear wheel assemblies are respectively mounted on the frame through a first rotating assembly and a second rotating assembly; a rotating part is rotatably mounted on the frame, and the rotating part is mounted on one end of the frame through the first rotating assembly; a pedal assembly is arranged on the frame, and the pedal assembly comprises a pedal body, and the pedal body is mounted on the frame through a third rotating assembly. The present invention connects the front and rear wheel assemblies and the pedal assembly on the frame through a rotating assembly, and when folding, the folding of the front wheel assembly can be completed by rotating the rotating part, the folding of the rear wheel assembly can be completed by rotating the second rotating assembly, and the folding of the pedal can be completed by rotating the third rotating assembly, so that the front and rear wheels and the pedal can be fully folded, which is very convenient and has a good folding effect. After folding, the occupied space is greatly reduced, and it is convenient for transportation and packaging.

Description

A folding car

Technical Field

The invention belongs to the technical field of folding bicycles, in particular to a folding bicycle.

Background technique

Electric vehicles are now a common means of transportation for people, but because electric vehicles are generally large in size and equipped with large and heavy batteries, they are not convenient to transport and carry. Therefore, as a derivative of folding bicycles, folding electric vehicles have gradually appeared. After folding, electric vehicles can be appropriately reduced in size and take up less space during transportation, but their folding mechanisms are often complicated and require a lot of effort during the folding process, making them inconvenient to use.

Summary of the invention

The purpose of the present invention is to solve the problems existing in the above-mentioned background technology and to provide a folding bicycle which has a simple structure, is easy to fold, and saves time and effort in folding.

The object of the present invention is achieved in that:

A folding bicycle, comprising a bicycle frame, a bicycle seat, a handlebar, and front and rear wheel assemblies, wherein the front and rear wheel assemblies are respectively mounted on the bicycle frame through a first rotating assembly and a second rotating assembly;

A rotating part is rotatably mounted on the frame, the rotating part is mounted on one end of the frame through the first rotating assembly, and the handlebar and the front wheel assembly are respectively mounted on the upper and lower sides of the rotating part;

The frame is provided with a pedal assembly, the pedal assembly comprises a pedal body, and the pedal body is mounted on the frame via a third rotating assembly;

The frame is detachably mounted with an electric power system.

It is further configured that the first rotating component includes an adjusting switch, a rotating member and a first main shaft, the rotating member is rotatably mounted on the first main shaft, a limiting slot is provided on the first main shaft, the adjusting switch is rotatably connected to the rotating member, the inner end of the adjusting switch can be clamped in the limiting slot, and the outer end of the adjusting switch extends out of the outside of the rotating part; a reset spring is pressed between the first main shaft and the end of the adjusting switch.

It is further configured that a mounting block is fixedly arranged inside the lower end of the frame, one end of the first main shaft is fixedly mounted in the mounting block, and the other end of the first main shaft extends out of the frame and is inserted into the rotating member.

It is further configured that the second rotating assembly includes a second main shaft, a fixed component and a rotating component, the fixed component is fixedly mounted on the frame, the rear wheel assembly is mounted on the rotating component, and the rotating component is mounted on the fixed component via the second main shaft; and the driving component is mounted on the second main shaft.

It is further configured that the second main shaft includes a circular shaft segment and a polygonal shaft segment, the outer periphery of the circular shaft segment is provided with a shaft sleeve, the cross-section of the polygonal shaft segment is polygonal, the fixing component is provided with a polygonal hole matching the polygonal shaft segment, and the polygonal shaft segment is clamped in the polygonal hole.

It is further configured that the third rotating assembly includes a rotating shaft and a fixing member, the fixing member is fixed on the frame, the pedal body is passed through the fixing member via the rotating shaft, and a roller is installed at the inner end of the pedal body.

It is further configured that the pedal body includes a treading surface, a first magnet is installed on the treading surface, and a second magnet is installed on the frame. After the pedal body is folded, the first magnet and the second magnet attract each other.

It is further configured that the power system includes a battery box, which is detachably mounted on the frame, and a battery assembly is arranged in the battery box; a clamping block is arranged on the frame, a receiving cavity is formed in the middle of the clamping block, and an elastic member is arranged in the receiving cavity; a buckle is rotatably arranged on the clamping block, a limiting hook is formed at the outer end of the buckle, and a baffle is formed at the inner end, and the baffle is clamped in the clamping block; a limiting protrusion is formed on the battery box, and the limiting protrusion can be clamped in the limiting hook.

It is further configured that the frame is a "C"-shaped hollow curved pipe, the upper end of the frame is connected to the vehicle seat cushion, and a hook for hanging articles is provided under the vehicle seat cushion.

It is further configured that a pair of handlebars are foldably mounted on one end of the handlebar rod away from the rotating part, a cross bar is arranged on the upper end of the handlebar rod, and connecting grooves are opened at both ends of the cross bar, and the handlebars are rotatably mounted in the connecting grooves.

Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:

1. The present invention connects the front and rear wheel assemblies and the pedal assembly on the frame through a rotating assembly. When folding, the front wheel assembly can be folded by rotating the rotating part, the rear wheel assembly can be folded by rotating the second rotating assembly, and the pedal can be folded by rotating the third rotating assembly. The front and rear wheels and the pedal can be fully folded, which is very convenient and has a good folding effect. After folding, the occupied space is greatly reduced, which is convenient for transportation and packaging.

2. The front wheel assembly of the present invention is folded by pulling the adjusting switch to disengage it from the limiting groove in the first main shaft, and then rotating the rotating part. When it turns to a certain position, the adjusting switch is again inserted into the first main shaft to complete the folding. The structure is simple, and the operation is convenient and labor-saving. The mutual cooperation between the limiting groove and the adjusting switch can play a stabilizing role, so that the rotating part can always be in a stable position after rotation and folding, thereby enhancing the stability of the structure after rotation and folding.

3. A return spring is pressed between the first main shaft and the adjustment switch of the present invention, so that after the rotating part rotates 180 degrees, the adjustment switch is automatically snapped into the limit groove of the main shaft under the action of the return spring, without manual pressing to return to its position, which is very labor-saving and speeds up the folding efficiency.

4. The frame of the present invention is in a "C" shape as a whole, and the rotating part is also a hollow curved tube. After the rotation is completed, the wheel part can be folded into the "C"-shaped arc circle, which makes rational use of the space; the shape formed by the hollow curved tube and the frame after rotation is also "C"-shaped, which increases the beauty of the entire mechanism after folding.

5. The present invention has a handlebar rod connected to the rotating part, and a folding component is provided at the lower end of the handlebar rod, so that the handlebar rod itself can be folded, and a handlebar can be rotatably provided at the upper end of the handlebar rod, so that the handlebar can also be folded. The multiple folding connection designs can fold the entire frame, handlebars, and wheels as much as possible to reduce space.

6. The rear wheel assembly of the present invention is folded and unlocked by rotating the driving component, pushing the wheel assembly so that the wheel assembly rotates along with the rotating component to achieve the effect of folding the wheel assembly into the frame. The structure is simple and the operation is convenient and labor-saving.

7. The second main shaft of the present invention is designed by combining a circular shaft and a polygonal shaft, so that the circular shaft portion can fit the sleeve to facilitate the rotation of the rotating part, and the polygonal shaft section can fit closely to the fixed part, thereby enhancing the stability of the structural connection between the second main shaft and the fixed part.

8. The battery box of the present invention can be detachably installed on the frame, and the specific detachable structure is: a clamping block is set on the frame, a buckle is rotatably set on the clamping block, and a limiting hook is formed at the outer end of the buckle to cooperate with the limiting protrusion of the battery box. The battery box can be disassembled and assembled by rotating the limiting hook, which is very convenient; an elastic part is installed in the clamping block, and the elastic part can be deformed under the action of the buckle, which helps to stabilize the connection between the battery box and the frame.

9. The present invention is provided with a hook on the lower side of the vehicle seat. In the prior art, people usually hang items on the handlebar on one side during riding. Due to uneven force, the front of the vehicle is prone to tilt and rotate to one side, and the rider needs to hold the front of the vehicle to stabilize the vehicle body. The present application sets the hook on the lower side of the vehicle seat. The hook and the vehicle seat are located in the middle of the entire vehicle. The item is hung in the middle of the vehicle body, so that the force can be balanced to prevent the vehicle from tipping over. The rider does not need to hold the vehicle body. Compared with the prior art, it has higher stability and convenience.

10. The pedal body of the present invention can be folded and installed on the frame. When the folding bicycle is to be folded, the pedal body can be folded up to reduce the width after folding. Rollers are installed on the pedal body. When the pedal body is unfolded, the rollers are in an approximately horizontal state. When folded, the direction of the rollers changes to an approximately vertical state, so that it can roll on the ground. When transporting, it is only necessary to push the frame without lifting the entire frame, which is very labor-saving.

11. The present invention provides mutually attractive magnets on the pedal body and the frame respectively, so that when the pedal body is folded, the attraction between the two magnets can keep it close to the frame, thus preventing the pedal body from loosening and falling when folded due to the loosening of the rotating shaft due to long-term use, thereby enhancing the stability of the structure.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a partial enlarged schematic diagram of point A in FIG. 1 .

FIG. 3 is a cross-sectional view of the connection structure between the rotating part and the frame of the present invention.

FIG. 4 is a cross-sectional view of the connection structure of the rotating part, the handlebar rod and the wheel assembly of the present invention.

FIG. 5 is a reference diagram of the front wheel assembly of the present invention after folding.

FIG. 6 is a structural reference diagram of the handlebar folding assembly of the present invention.

FIG. 7 is a schematic diagram of the structure of the frame of the present invention.

FIG. 8 is a partial enlarged schematic diagram of point B in FIG. 7 .

FIG. 9 is an exploded view of the structure of the second rotating assembly of the present invention.

FIG. 10 is an exploded view of the connection structure between the battery box and the frame of the present invention.

FIG. 11 is a schematic diagram of the rear wheel assembly of the present invention after folding.

FIG. 12 is a second schematic diagram of the structure of the vehicle frame of the present invention.

FIG. 13 is a partial enlarged schematic diagram of point C in FIG. 12 .

FIG. 14 is a schematic structural diagram of the pedal body of the present invention in an expanded state.

FIG. 15 is a schematic structural diagram of the pedal body of the present invention in a folded state.

FIG. 16 is an exploded view of the structure of the pedal body connected to the roller of the present invention.

FIG. 17 is a diagram showing the structural state of the present invention after folding.

Detailed ways

The present invention will be further described below with reference to specific embodiments in conjunction with the accompanying drawings, referring to FIGS. 1 to 17 .

A folding bicycle comprises a frame 100, a seat cushion 500, a handlebar, and front and rear wheel assemblies, wherein the front and rear wheel assemblies are respectively mounted on the frame 100 through a first rotating assembly and a second rotating assembly;

The frame 100 is rotatably mounted with a rotating part 300, the rotating part 300 is mounted on one end of the frame 100 through the first rotating assembly, and the handlebar and the front wheel assembly are respectively mounted on the upper and lower sides of the rotating part;

The frame 100 is provided with a pedal assembly, the pedal assembly comprising a pedal body 200, and the pedal body 200 is mounted on the frame via a third rotating assembly;

The frame is detachably mounted with an electric power system.

The specific installation structure of the folding front wheel assembly is as follows:

The first rotating assembly includes an adjusting switch 310, a rotating member 320 and a first main shaft 330. The rotating member 320 is rotatably mounted on the first main shaft 330. A limiting groove 331 is provided on the first main shaft 330. The adjusting switch 310 is rotatably connected to the rotating member 320. The inner end of the adjusting switch 310 can be clamped in the limiting groove 331. The limiting groove 331 can be a through groove that radially penetrates the main shaft, or a limiting groove can be provided on each of the upper and lower sides of the main shaft, so that after the adjusting switch is disengaged from the limiting groove, the adjusting switch can be aligned with the limiting groove on the opposite side and clamped when the rotating part drives the adjusting switch to rotate to 180°.

The regulating switch 310 includes a driving part 311 extending out of the rotating part 300, a connecting part 313 rotatably connected to the rotating member 320 via a connecting shaft 312, and a limiting part 314 that can be clamped in the limiting groove 331. The rotating part 300 is provided with a through groove 340, and the driving part 311 extends out of the through groove 340. When folding is required, the driving part exposed outside the rotating part only needs to be pulled outward by hand or a tool, and the driving part and the limiting part rotate outward around the connecting shaft, and the limiting part gradually disengages from the limiting groove. Then, the rotating part is rotated by hand, and the rotating member drives the regulating switch to rotate around the main axis. When it rotates to 180°, the limiting part is aligned with the limiting groove and clamped, completing the rotation and folding of the rotating part.

In order to facilitate the adjustment switch to automatically snap into the limit groove after the rotation is completed, a return spring 350 is pressed between the first main shaft 330 and the end of the adjustment switch 310. The return spring will rotate with the rotating part. When it is rotated to 180°, the limit part of the adjustment switch has rotated to the limit groove, and there is no obstruction at the bottom. Under the stimulation of the return spring, it can be directly snapped into the limit groove, which is convenient and labor-saving.

The frame 100 is a "C"-shaped hollow curved tube. The upper end of the frame 100 is connected to a seat cushion 500. The lower end of the frame 100 is fixedly provided with a mounting block 110 (in this embodiment, the mounting block is fastened in the frame by screws). One end of the first spindle 330 is fixedly installed in the mounting block 110 by screws 332. At the same time, a mounting channel is provided in the mounting block. A latch 111 is provided in the mounting channel. The inner end of the latch is inserted into the spindle. The other end of the first spindle 330 extends out of the frame 100 and is provided in the rotating part 300. The "C"-shaped design allows the wheel part to be directly folded into the annular area surrounded by the "C" shape when folding, so that the entire vehicle is approximately circular after folding, which is both beautiful and can make full use of space, and the design is reasonable.

The rotating part 300 is a hollow curved tube, the rotating member 320 is fixedly mounted inside the rotating part 300 (in this embodiment, the rotating member is fastened inside the rotating part by screws), one end of the first main shaft 330 is inserted into the rotating member 320, and the rotating member 320 can rotate relative to the first main shaft 330; a gasket 321 is pressed between the rotating member and the mounting block. The design of the curved tube of the rotating part can form a "C" shape with the frame after rotation, so that the entire vehicle is approximately circular after folding, which is both beautiful and can make full use of space. The frame and the rotating part are both hollow tube designs, which reduces the weight of the entire structure and is easy to take, place and transport.

The rotating part 300 is provided with a connecting tube 360, and the upper and lower ends of the connecting tube 360 are respectively provided with a wheel assembly 400 and a handlebar 600. The wheel assembly here is the front wheel of a bicycle or an electric vehicle, the lower end of the connecting tube 360 is connected to the front wheel, and the upper end of the connecting tube 360 is connected to the handlebar 600. At the same time, a brake structure 410 is provided on the wheel, and a hand brake structure 660 is provided on the handlebar 600. The hand brake structure 660 is connected to the brake structure 410 through a control line.

The specific installation structure of the folding rear wheel assembly is as follows:

The second rotating component includes a second main shaft 710, a fixed component 720 and a rotating component 730. The fixed component 720 is fixedly mounted on the frame 100. The rotating component 730 is mounted on the wheel assembly. The rotating component 730 is mounted on the fixed component 720 through the second main shaft 710. The driving component 750 is mounted on the second main shaft 710.

It is further configured that the second main shaft 710 includes a circular shaft section 711 and a polygonal shaft section 712, the outer periphery of the circular shaft section 711 is sleeved with a shaft sleeve 740, the cross section of the polygonal shaft section 712 is polygonal, and in this embodiment, a hexagonal shaft is selected, and a polygonal hole matching the polygonal shaft section 712 is opened on the fixing component 720, and the polygonal shaft section 712 is clamped in the polygonal hole. As shown in the figure, the fixing component 720 includes two fixing blocks 721 fixedly connected to the frame 100, and the rotating component 730 is rotatably installed between the two fixing blocks 721 through the second main shaft 710. A circular hole 7212 is provided on the fixed block on the upper side, and a hexagonal hole 7211 is provided on the fixed block on the lower side. The circular shaft section of the second main shaft 710 located on the upper side is provided with the circular hole 7212, and the polygonal shaft section located on the lower side is provided with the hexagonal hole 7211. The sleeve 740 is pressed between the circular shaft section and the circular hole 7212. The rotating component is located in the middle of the main shaft, and a through hole is provided in the rotating component. The inner wall of the upper section of the through hole fits with the sleeve.

It is further configured that the second main shaft 710 is formed with threaded sections 713 at both the upper and lower ends, the threaded section 713 at the upper end is threadedly connected with the driving component 750, a connecting column 752 is transversely arranged on the connecting head of the driving component 750, a threaded hole that cooperates with the threaded section 713 is opened in the connecting column 752, the driving component 750 can rotate on the second main shaft 710, a gasket 751 is pressed between the lower end of the driving component 750 and the fixing component 720; the threaded section 713 at the lower end is threadedly connected with a fastening component 760. The fastening component can be a nut, which is threadedly connected to the lower end of the main shaft so that it can be fastened to the fixing block at the lower side.

It is further configured that the power system includes a battery box 810, which is detachably mounted on the frame 100, and a battery assembly is arranged in the battery box 810. The specific structure of the detachable installation of the battery box 810 is as follows: a clamping block 120 is arranged on the frame 100, a buckle 130 is rotatably arranged on the clamping block 120, a limited position hook 131 is formed at the outer end of the buckle 130, and a limited position protrusion 811 is formed on the battery box 810, and the limited position protrusion 811 can be stuck in the limited position hook 131. A receiving cavity 121 is provided in the middle of the clamping block 120, and an elastic member 140 is arranged in the receiving cavity 121. A baffle 132 is formed at the inner end of the buckle 130, and the baffle 132 is stuck in the clamping block 120. The elastic member 140 can be deformed under the action of the baffle 132. The elastic member is preferably a silicone shaft, which is made of silicone, has a certain elasticity, and is easy to restore to its original state after deformation. After the battery box is installed, it is in the following state: the limit hook is hooked on the limit protrusion to prevent the battery box from falling. When the battery box needs to be removed, just move the limit hook, the baffle moves inward and presses against the elastic part to cause it to deform. At this time, the limit hook is separated from the limit protrusion on the battery box, and the battery box can be removed.

It is further configured that a mounting platform 150 for mounting the battery box 810 is fixedly provided on the vehicle frame 100, a limiting hole 151 is provided on the mounting platform 150, a limiting block 812 adapted to the limiting hole 151 is formed below the battery box 810, and the limiting block is cooperatively arranged in the limiting hole. The battery box is fixed between the buckle of the vehicle frame and the mounting platform.

It is further configured that a hook 510 for hanging items is provided under the vehicle seat 500. The hook is provided on the lower side of the vehicle seat, and the hook and the vehicle seat are located in the middle of the entire vehicle. The items are hung in the middle of the vehicle body, so that the force can be balanced to prevent the vehicle from tipping over, and the rider does not need to hold the vehicle body, which has higher stability and convenience than the prior art.

It is further configured that the front and rear wheel assemblies each include a connecting frame 910, a mudguard 920 and a wheel 930, the connecting frame 910 is fixedly connected to the rotating component 730 and the rotating component 320 by screws/bolts, the connecting frame 910 is used to fix the wheel axle, the wheel 930 is installed on the wheel axle, the mudguard 920 is provided on a part of the periphery of the wheel 930, the mudguard 920 is fixedly installed on the connecting frame 910, when the wheel is unfolded, the end of the mudguard 920 close to the frame is wider than the end away from the frame, which is both beautiful and has a good mud-blocking effect; a brake device is installed on the wheel.

The specific structure of the pedal assembly is:

The pedal body 200 can be folded and mounted on the frame 100 through a third rotating assembly, and a roller 210 is mounted on the inner end of the pedal body 200; the third rotating assembly includes a rotating shaft and a fixing member, the fixing member is fixed on the frame 100, and the pedal body 200 is passed through the fixing member through the rotating shaft. As shown in FIG3, the roller is in a nearly horizontal state when the pedal body is unfolded; as shown in FIG4, when the pedal body is folded, the direction of the roller changes accordingly and becomes a nearly vertical state, so that it can roll on the ground.

The pedal body 200 includes a tread surface, on which a first magnet 231 is mounted, and a second magnet 232 is mounted on the frame 100. After the pedal body is folded, the first magnet 231 and the second magnet 232 attract each other. Due to long-term use, the rotating shaft will gradually loosen after the pedal body is folded many times. In order to prevent the pedal body from being stable after being folded, magnets are provided. Through the attraction between the magnets, the pedal body can be firmly attracted to the frame, and the roller can also keep rolling on the ground in the passing direction, thereby enhancing the stability of the structure and extending the service life.

The rotating shaft is preferably a bolt 241 and a nut 242, and the fixing part includes two fixing plates 243, and the two fixing plates 243 are respectively provided with a first connecting hole 2431 and a second connecting hole 2432. The bolt 241 passes through the first connecting hole 2431, the pedal body 200 and the second connecting hole 2432 in sequence to connect with the nut 242, and the pedal body 200 is connected between the two fixing plates 243 by bolts.

The tread surface is formed with a plurality of anti-skid patterns 250, and the upper surface of the first magnet 231 is located in the same horizontal plane as the upper surface of the anti-skid patterns 250. The thickness of the first magnet should not be too large or too small. When the upper surface of the first magnet is higher than the surface of the anti-skid patterns, the user will feel uneven and uncomfortable when stepping on it; when the upper surface of the first magnet is too lower than the surface of the anti-skid patterns, after the pedal body is folded, the first magnet and the second magnet on the frame are not easily attracted and connected, which will affect the attraction of the magnet and thus affect the stability of the pedal body.

The specific installation structure of the roller 210 is as follows: a threaded hole 260 is opened at the inner end of the pedal body 200, and a connecting pin 270 passes through the center hole of the roller 210 and is threadedly connected in the threaded hole 260.

As a first preferred installation method for the roller and the connecting pin: washers are respectively provided on the inner and outer sides of the roller 210, the inner washer 281 is pressed between the pedal body 200 and the inner wall of the roller 210, and the outer washer 282 is pressed between the pin head 271 of the connecting pin and the outer wall of the roller 210, so that the roller can rotate with the connecting pin as the axis.

As a second preferred installation method of the roller and the connecting pin: a bearing is arranged in the center hole of the roller 210, and the connecting pin 270 is fixedly connected to the bearing. Compared with the first preferred method, this method has a more complex structure and a relatively high cost.

The pedal body 200, the roller 210, and the rotating assembly are all provided with two, and the two pedal bodies 200 are respectively installed on the left and right sides of the frame 100 through the rotating assembly, and the two rollers 210 are respectively connected to the inner ends of the two pedal bodies 200. The design of two pedals and rollers greatly enhances the stability of the structure.

The handlebar 600 is provided with a folding assembly at one end close to the rotating part 300, and the folding assembly includes a wrench 610, an upper connecting seat 620, and a lower connecting seat 630. The upper connecting seat 620 is integrally formed with the handlebar 600 or separately provided, and the lower connecting seat 630 is integrally formed with the connecting pipe 360 or separately provided. The upper connecting seat 620 and the lower connecting seat 630 are hinged, and the lower end of the wrench 610 is hinged on the lower connecting seat 630. The upper connecting seat 620 is provided with a positioning groove 621 for the wrench 610 to be clamped. A pair of clamping blocks 631 are formed on the lower connecting seat, and the lower end of the wrench 610 is connected between the clamping blocks through a rotating shaft 632, and a fastener 633 is connected to the end of the clamping block. When the handlebar needs to be folded, it is only necessary to pull the wrench to separate its upper end from the upper connecting seat, and then fold the handlebar.

A pair of handlebars 640 are foldably mounted on one end of the handlebar rod 600 away from the rotating part 300. A crossbar 650 is disposed on the upper end of the handlebar rod 600. Both ends of the crossbar 650 are provided with connecting grooves 651. The handlebars 640 are rotatably mounted in the connecting grooves 651. The specific mounting structure of the handlebars 640 and the connecting grooves 651 is as follows: a rotating shaft 641 is disposed in the handlebar 640. A connecting piece is formed at the inner end of the rotating shaft 641. A first connecting hole is provided on the connecting piece. Second connecting holes are provided on both sides of the connecting groove. A connecting pin passes through the second connecting hole and the first connecting hole to connect the rotating shaft to the connecting groove. The rotating shaft can be rotated and folded around the connecting pin. The seat cushion 500 is a triangle with a sharp front end. When the handlebars at both ends of the crossbar are folded downward, the front end of the seat cushion can just fit into the gap between the two handlebars.

The folding mechanism proposed by the present invention can be used in folding electric vehicles as well as folding bicycles or other related fields. When folding the front wheel assembly, the adjusting switch is pulled to disengage the limiting groove in the main shaft, and then the rotating part is rotated. When it is rotated to 180 degrees, the adjusting switch is again inserted into the main shaft to complete the folding. The structure is simple, and the operation is convenient and labor-saving. The cooperation between the limiting groove and the adjusting switch can play a stabilizing role, so that the rotating part can always be in a stable position after rotation and folding, thereby enhancing the stability of the structure after rotation and folding; when folding the rear wheel assembly, the driving component is pulled to loosen it from the second main shaft, and the rotating component can be pushed to rotate at this time. When the wheel assembly is rotated to one side of the frame, the folding is completed. When folding, the driving component is pulled to lock and fix it with the second main shaft; then the pedal assembly is folded, and the roller connected to the inner side of the pedal is turned to the outer side and can roll on the ground. When the entire electric vehicle needs to be moved, the handlebar can be directly pulled or pushed by hand, and the roller rolls, so the transportation is very convenient and labor-saving; when the handlebar needs to be folded, only the wrench is needed to separate the upper end of the handlebar from the upper connecting seat, and then the handlebar is folded. At the same time, when the handlebars at both ends of the cross bar at the upper end of the handlebar are folded downward, the front end of the seat cushion can be just stuck in the gap between the two handlebars, completing the folding of the entire electric vehicle (as shown in the figure). The present invention folds the entire electric vehicle to the greatest extent possible, and the folding is convenient and labor-saving.

The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims (7)

1. The utility model provides a folding car, includes frame, car cushion, handlebar and preceding, back wheel subassembly, its characterized in that: the front wheel assembly and the rear wheel assembly are respectively arranged on the frame through a first rotating assembly and a second rotating assembly;

The vehicle frame is rotatably provided with a rotating part, the rotating part is arranged at one end of the vehicle frame through the first rotating component, and the handlebar and the front wheel component are respectively arranged at the upper side and the lower side of the rotating part;

The pedal assembly comprises a pedal main body, and the pedal main body is arranged on the frame through a third rotating assembly;

The power system is detachably arranged on the frame;

The first rotating assembly comprises an adjusting switch, a rotating piece and a first main shaft, the rotating piece is rotatably arranged on the first main shaft, a limiting groove is formed in the first main shaft, the adjusting switch is rotatably connected to the rotating piece, the inner end of the adjusting switch can be clamped in the limiting groove, and the outer end of the adjusting switch extends out of the outer side of the rotating part; a reset spring is pressed between the first main shaft and the end part of the regulating switch;

the frame is arranged at the lower end of the frame in a fixed mode, one end of the first main shaft is fixedly arranged in the mounting block, and the other end of the first main shaft extends out of the frame and penetrates through the rotating piece;

the second rotating assembly comprises a second main shaft, a fixed part and a rotating part, the fixed part is fixedly arranged on the frame, the rear wheel assembly is arranged on the rotating part, and the rotating part is arranged on the fixed part through the main shaft; and a driving part is arranged on the second main shaft.

2. The folding cart of claim 1, wherein: the second main shaft comprises a circular shaft section and a polygonal shaft section, the periphery of the circular shaft section is sleeved with a shaft sleeve, the cross section of the polygonal shaft section is polygonal, a polygonal hole matched with the polygonal shaft section is formed in the fixing part, and the polygonal shaft section is clamped in the polygonal hole.

3. The folding cart of claim 1, wherein: the third rotating assembly comprises a rotating shaft and a fixing piece, the fixing piece is fixedly arranged on the frame, the pedal main body is arranged on the fixing piece in a penetrating mode through the rotating shaft, and the inner end of the pedal main body is provided with a roller.

4. A folding cart according to claim 3, wherein: the pedal main body comprises a pedal face, a first magnet is arranged on the pedal face, a second magnet is arranged on the frame in a matched mode, and after the pedal main body is folded, the first magnet and the second magnet are attracted to each other.

5. The folding cart of claim 1, wherein: the power system comprises a battery box, wherein the battery box is detachably arranged on the frame, and a battery assembly is arranged in the battery box; the frame is provided with a clamping block, the middle part of the clamping block is provided with a containing cavity, and an elastic piece is arranged in the containing cavity; the clamping block is rotationally provided with a clamping buckle, the outer end of the clamping buckle is provided with a limiting hook, the inner end of the clamping buckle is provided with a baffle plate, the baffle plate is clamped in the clamping block, the battery box is provided with a limiting lug, and the limiting lug can be clamped in the limiting hook.

6. The folding cart of any of claims 1-5, wherein: the frame is a C-shaped hollow bent pipe, the upper end of the frame is connected with the car cushion, and a hook for hanging articles is arranged below the car cushion.

7. The folding cart of claim 1, wherein: the one end of handlebar pole keeping away from rotation portion is collapsible installs a pair of handlebar hand, and handlebar pole upper end is provided with a horizontal pole, and the spread groove has all been seted up to the both ends of horizontal pole, the handlebar hand rotates and installs in this spread groove.