WO2020238514A1

WO2020238514A1 - Foldable electric scooter

Info

Publication number: WO2020238514A1
Application number: PCT/CN2020/086645
Authority: WO
Inventors: 李定辉; 李伟扬
Original assignee: 深圳市简行科技开发有限公司
Priority date: 2019-05-31
Filing date: 2020-04-24
Publication date: 2020-12-03
Also published as: CN110053693A

Abstract

Disclosed is a foldable electric scooter. Two driven wheels (202) are mounted at a front scooter frame part of the scooter, and a driving wheel (301), which can be folded along with a scooter body (303) and retracted between the two front wheels, is mounted at a scooter body part. When the scooter is folded, an unfolding lock rod (313), which is located in the middle of a second connection rod (305), is overturned upwards to unlock the scooter body; the driving wheel (301) is correspondingly retracted between the two driven wheels (202) by means of folding a connection rod mechanism of the scooter body; and a balance support wheel (315), which is mounted at a rear side of the driving wheel (301), and the two driven wheels (202) correspondingly form three-point support, so as to ensure that the folded electric scooter can be stable and balanced on the ground. According to the foldable electric scooter, the scooter body can be folded above the wheels, the size after folding is greatly reduced, and a relatively small ground area is occupied when the scooter is stored; and when being carried, the electric scooter can be as convenient and effort-saving as a trolley case.

Description

Foldable electric scooter

This application is based on the Chinese patent application with the application number 201910471268.6 and the filing date on May 31, 2019, and claims its priority. The entire content of the application is hereby incorporated into this application as a whole.

Technical field

This application relates to the technical field of electric scooters, in particular to a foldable electric scooter.

Background technique

The body of the scooter is a flat plate, and people can ride on it. The power can be supported by feet or electric drive. Scooters have been used as shared rentals in some European countries. However, due to the needs of carrying and storage of scooters, the wheels are usually made small, the terrain adaptability is poor, and the passing ability of the scooters is poor; in addition, due to the light weight of the scooters, the scooters are often equipped with smaller capacity batteries and continue to travel. The ability is low; and because of the front and rear asymmetry of the scooter, it is difficult to complete the folding according to the current folding method because it is blocked by the battery and the motor parts during folding. Even if it can be folded, the smallest volume cannot be guaranteed, and effective fixation cannot be guaranteed. At the same time, it is difficult to carry because of its heavy weight.

Application content

The technical problem to be solved by this application is to provide a foldable electric scooter, which realizes the folding and dragging of the electric scooter, so as to solve the current problems that the electric scooter is not easy to fold and inconvenient to carry.

To solve the above technical problems, this application adopts the following technical solutions:

A foldable electric scooter includes a front frame part, a body part, and a central axle column structure for connecting the front frame part and the body part;

The central axle column structure includes an axle column body and an eccentric connector. The axle column body is provided with a front frame mounting hole and a vehicle body mounting hole. The upper end of the axle column body is formed with an outer diameter smaller than that of the axle column body The eccentric connecting member includes a first sleeve and a second sleeve eccentrically connected to the first sleeve. The first sleeve is sleeved on the rotation shaft, and the rotation shaft is far away One end of the shaft body is provided with a stopper;

The front frame component includes a handle, two driven wheels, two driven wheel brackets, two steering sleeves, an upper balance cross bar, a lower balance cross bar, and a steering control rod. The driven wheel is mounted on the The lower end of the driven wheel support, the upper end of the driven wheel support is formed with a rotating shaft, the steering sleeve sleeve is placed on the rotating shaft, the left and right ends of the upper balance crossbar are respectively movably connected with the upper end of a steering sleeve, so The middle part of the above balance crossbar is movably connected with the shaft column body of the central shaft column structure through the front frame mounting hole; the left and right ends of the lower balance crossbar are each movably connected with the lower end of a steering sleeve, the The middle part of the lower balance crossbar is movably connected with the shaft column body of the central shaft column structure through the front frame mounting hole, the left and right ends of the steering control rod are respectively movably connected with the top end of the rotating shaft of a driven wheel bracket, the The middle part of the steering control rod is connected with the lower end of the second sleeve, and the handlebar is inserted into the second sleeve;

The body part includes a driving wheel, a driving wheel bracket, a body, a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a fifth connecting rod, and an unfolding lock rod. The driving wheel is mounted on The rear end of the drive wheel bracket, the front end of the drive wheel bracket and the rear end of the vehicle body are fixedly connected, the fourth link is fixedly connected to the front end of the vehicle body, and the front end of the first link passes through The body mounting hole is movably connected with the upper end of the shaft body of the central shaft column structure, and the rear end is movably connected with the front ends of the third and fifth links; the front end of the second link passes through the body mounting hole The lower end of the shaft body of the central shaft structure is movably connected, the rear end is movably connected to the rear end of the fourth connecting rod, and the middle part is movably connected to the rear end of the third connecting rod; the fourth connecting rod The front end of the fifth link is movably connected to the rear end of the fifth link, the middle of the first link is connected to the deployment lock rod through the lock connecting rod, and the deployment lock rod can be correspondingly clamped on the front end of the third link to form In the hook

Flip the unfolding lock rod upwards to disengage the unfolding lock rod from the hook at the front end of the third link. At this time, the front end of the first link rotates around the shaft body, and the rear end moves upward and drives the third link through the third link. The rear end of the two connecting rods moves upward, so that the rear end of the fourth connecting rod rotates relative to the rear end of the second connecting rod, so that the driven wheel and the driving wheel are close. When the first connecting rod and the second connecting rod move up to and When the shaft body of the central shaft column structure is parallel, the driving wheel correspondingly enters between the two driven wheels.

Preferably, the left and right sides of the front end of the first connecting rod are respectively provided with upright balance pressure blocks.

Preferably, the front end of the drive wheel bracket is provided with a locking crossbar, and both sides of the lower end of the shaft body of the central shaft column structure are provided with a hook, and the middle of the hook is movably connected to the lower end of the shaft body , The front end of the hook is provided with a groove corresponding to the locking crossbar, and the rear ends of the two hooks are connected by a lifting rod.

Preferably, a return spring is installed on the hook, and the hook automatically engages with the locking crossbar under the action of the return spring.

Preferably, a balance support wheel is also installed on the rear side of the driving wheel.

Preferably, a connecting post is provided at the lower end of the second sleeve, a connecting seat is provided at the middle of the steering control rod, and the connecting post at the lower end of the second sleeve is inserted into the connecting hole of the connecting seat.

Preferably, the vehicle body component further includes a vehicle seat, a connecting column and a supporting link, the vehicle seat is fixed to the vehicle body through the connecting column, a hinge seat is provided on the fifth link, and the supporting link The front end is movably connected with the hinge base, and the rear end is movably connected with the connecting column.

Preferably, the body part further includes a pedal and a rotating gear fixedly connected to the pedal, and the rotating gear is connected to the driving wheel through a chain.

The beneficial technical effect of the present application is that when the present application is folded, the unfolding lock rod is flipped upward to disengage the unfolding lock rod from the hook at the front end of the third link, and then the unfolding lock rod is lifted up. The front end of a connecting rod rotates around the shaft body, and the rear end moves upward and drives the rear end of the second connecting rod upward through the third connecting rod, so that the rear end of the fourth connecting rod rotates relative to the rear end of the second connecting rod, The driven wheel is close to the driving wheel. When the first connecting rod and the second connecting rod are moved up to be parallel to the shaft column body of the central shaft column structure, the driving wheel correspondingly enters between the two driven wheels to complete the folding. The electric scooter moves in the reverse direction according to the folding process, and the body can be directly unfolded. After unfolding, the unfolding lock rod is turned down and correspondingly is clamped in the hook part at the front end of the third link, which hooks the unfolding lock rod , To ensure that the structure of the electric scooter is stable when it is deployed. Compared with the prior art, the present application can fold the body of the electric scooter above the wheels through the first link, the second link, the third link, the fourth link, and the fifth link. After being folded, the volume is greatly reduced, and the floor area occupied during storage is less; in addition, the electric scooter can be carried as convenient and labor-saving as a tow box.

Description of the drawings

Fig. 1 is a schematic diagram of a three-dimensional structure of a foldable electric scooter in an embodiment of the application;

Figure 2 is a side view of a foldable electric scooter in an embodiment of the application;

3 is a schematic diagram of an exploded structure of the central shaft column structure in an embodiment of the application;

4 is a side view of the foldable electric scooter in a half-folded state in an embodiment of the application;

Fig. 5 is a schematic diagram of a three-dimensional structure of a foldable electric scooter in a folded state in an embodiment of the application;

Figure 6 is a side view of the foldable electric scooter in a folded state in an embodiment of the application;

FIG. 7 is a schematic structural diagram of a hook in an embodiment of the application;

Fig. 8 is a schematic structural diagram of a foldable electric scooter in another embodiment of the application.

Detailed ways

In order to enable those of ordinary skill in the art to more clearly understand the purpose, technical solutions, and advantages of the application, the application will be further elaborated below with reference to the accompanying drawings and embodiments.

As shown in Figures 1 to 3, in an embodiment of the present application, a foldable electric scooter includes a front frame part, a body part, and a central axle column structure for connecting the front frame part and the body part .

The central axle column structure includes an axle column body 10 and an eccentric connector 20. The axle column body 10 is provided with a front frame mounting hole 15, a front frame mounting hole 16, a body mounting hole 12, and a body mounting hole 13. Wherein, a connecting piece 14 is fixedly connected to the body mounting hole 13. The upper end of the shaft body 10 is formed with a rotating shaft 11 having an outer diameter smaller than the outer diameter of the shaft body 10, and the eccentric connecting member 20 includes a first sleeve 21 and an eccentric connection with the first sleeve 21 The second sleeve 22, the first sleeve 21 is sleeved on the rotating shaft 11, the end of the rotating shaft 11 away from the shaft body 10 is provided with a blocking member 30, and the lower end of the second sleeve 22 is provided There is a connecting column 50. The lower end of the second sleeve 22 is provided with internal threads, the upper end of the connecting column 50 is provided with external threads, and the connecting column 50 is threadedly connected to the lower end of the second sleeve 22.

The blocking member 30 adopts a nut. Correspondingly, the end of the rotating shaft 11 away from the shaft body 10 is provided with an external thread. After the first sleeve 21 is sleeved on the rotating shaft 11, the nut and The rotating shaft 11 is threaded to prevent the first sleeve 21 from being separated from the rotating shaft 11. It should be noted that in other embodiments of the present application, the blocking member 30 may also be a bolt. Accordingly, the end of the rotating shaft 11 away from the shaft body 10 is provided with an internal thread, and the first After the sleeve 21 is sleeved on the rotating shaft 11, the bolt is screwed with the rotating shaft 11 to prevent the first sleeve 21 from being separated from the rotating shaft 11.

The lower end of the first sleeve 21 is provided with a bearing 41, and the upper end is provided with a bearing 42. The outer ring of the bearing 41 is connected to the lower end of the first sleeve 21. The outer ring of the bearing 42 is connected to the upper end of the first sleeve 21. In connection, the inner ring of the bearing 41 and the bearing 42 are sleeved on the rotating shaft 11. A bearing is provided at both ends of the first sleeve 21 to better realize the rotation of the first sleeve 21 around the rotating shaft 11.

The front frame component includes a handle 201, two driven wheels 202, two driven wheel brackets 205, two steering sleeves 205, an upper balance crossbar 206, a lower balance crossbar 207, and a steering control rod 208. The driven wheel 202 is installed at the lower end of the driven wheel support 203, and a rotating shaft 204 is formed on the upper end of the driven wheel support 203, and the steering sleeve 205 is sleeved on the rotating shaft 204. The left and right ends of the upper balance crossbar 206 are respectively movably connected to the upper end of a steering sleeve 205, and the middle of the upper balance crossbar 206 passes through the front frame mounting hole 15 and the shaft body of the central shaft structure 10 movable connection; the left and right ends of the lower balance crossbar 207 are each movably connected to the lower end of a steering sleeve 205, the middle of the lower balance crossbar 207 through the front frame mounting hole 16 and the central axle column structure The shaft body 10 is movably connected. A steering shaft seat 210 is fixedly arranged on the top of the rotating shaft 204. The left and right ends of the steering control rod 208 are movably connected to the rotating shaft 204 of a driven wheel bracket 203 through the steering shaft seat 210. The steering control rod 208 A connecting seat 209 is provided in the middle of the. The connecting post 50 at the lower end of the second sleeve 22 is inserted into the connecting hole of the connecting seat 209, the handle 201 is inserted into the second sleeve 22, and the handle 201 is turned to make the second sleeve The tube 22 rotates around the rotating shaft 11 to drive the steering control rod 208 to move left and right to realize the steering control of the foldable electric scooter.

The body parts include a drive wheel 301, a drive wheel bracket 302, a body 303, a first link 304, a second link 305, a third link 306, a fourth link 307, a fifth link 308, and a deployment lock杆313. The driving wheel 301 is installed at the rear end of the driving wheel bracket 302, and the front end of the driving wheel bracket 302 is fixedly connected to the rear end of the body 303. The body 303 includes a battery and a controller, which are controlled by the controller. The storage battery supplies power to the driving wheel 301 to drive the driving wheel 301 to run.

The fourth link 307 is fixedly connected to the front end of the body 303. The front end of the first connecting rod 304 is movably connected to the upper end of the shaft column body 10 of the central shaft column structure through the body mounting hole 12, and the rear end is movably connected to the front ends of the third connecting rod 306 and the fifth connecting rod 308 at the same time. connection. The front end of the second connecting rod 305 is movably connected to the lower end of the shaft body 10 of the central shaft column structure through the connecting piece 14, the rear end is movably connected to the rear end of the fourth connecting rod 307, and the middle part is movably connected to the second The rear end of the three link 306 is movably connected. The front end of the fourth link 307 is movably connected with the rear end of the fifth link 308.

The middle part of the first connecting rod 304 is connected to the unfolding lock rod 313 through a lock connecting rod 317. A spring (torsion spring) is installed on the lock connecting rod 317. A hook 314 is formed at the front end of the third connecting rod 306. When the application is unfolded for riding, the unfolding lock rod 313 can be automatically locked in the hook 314 under the action of a spring, so as to keep the structure of the foldable electric scooter in an unfolded state.

As shown in Figures 1 and 7, a locking crossbar 309 is provided at the lower end of the vehicle body 303, and a hook 310 is provided on both sides of the lower end of the shaft column body 10 of the central shaft column structure. A reset spring is installed. The middle part of the hook 310 is movably connected to the lower end of the shaft body 10, and the front end of the hook 310 is provided with a groove 311 corresponding to the locking crossbar 309, two clamps The rear end of the hook 310 is connected by a lifting rod 312.

Figure 4 is a side view of the foldable electric scooter of the application in a half-folded state. In order to better illustrate the positional relationship of the various components of the foldable electric scooter in the half-folded state, Figure 4 defaults to the left side The driven wheel 202, the driven wheel bracket 203 and the steering sleeve 205. FIG. 5 is a schematic diagram of the three-dimensional structure of the foldable electric scooter of the application in a folded state. Figure 6 is a side view of the foldable electric scooter of the application in a folded state. In order to better illustrate the positional relationship of the various components of the foldable electric scooter in the folded state, Figure 6 defaults to the driven wheel on the left Bracket 203 and steering sleeve 205.

As shown in Figures 4 to 6, the shaft body 10, the first connecting rod 304, the second connecting rod 305, and the third connecting rod 306 constitute a four-bar linkage mechanism, and the second connecting rod 305 and the third connecting rod 306, the fourth link 307 and the fifth link 308 constitute another four-bar linkage.

When the foldable electric scooter of the present application is folded, the unfolding lock rod 313 is lifted up, and the unfolding lock rod 313 is turned upwards around the pin at the middle of the first connecting rod 304 to connect with the third connecting rod. The hook 314 at the front end of the rod 306 is disengaged to complete the unlocking of the vehicle body.

After the unfolding lock rod 313 is disengaged from the hook 314 at the front end of the third link 306, continue to lift the unfolding lock rod 313. At this time, the front end of the first link 304 rotates around the shaft body 10, and the rear end is upward. Move and drive the rear end of the second link 305 to move upward through the third link 306, so that the rear end of the fourth link 307 rotates relative to the rear end of the second link 305, so that the driven wheel 202 is close to the driving wheel 301 When the first connecting rod 304 and the second connecting rod 305 move up to be parallel to the shaft body 10 of the central shaft column structure, the driving wheel 301 enters between the two driven wheels 202 correspondingly to complete the folding.

During the folding process, when the driving wheel 301 moves forward, the hook 310 and the locking cross bar 309 provided at the lower end of the body 303 are close to each other, and after the folding is completed, the hook 310 is under the action of the return spring Automatically reset, so that the locking crossbar 309 can be correspondingly inserted into the groove 311 of the hook 310 provided at the lower end of the shaft body 10 of the central shaft column structure, and is correspondingly engaged with the hook 310 to form Fixed to prevent the problem of not tightly fixed after folding. At the same time, the balance support wheel 315 installed on the rear side of the driving wheel 301 corresponds to the two driven wheels 10 to form an effective three-point ground support to ensure that the folded electric scooter can be on the ground On a stable balance.

After the folding is completed, you can directly hold the handle 201, and drag the two driven wheels 202 to realize the towing of the entire electric scooter, thus avoiding the laborious and difficult handling of the folding electric scooter by manual handling The problem. When the towing is stopped, the two driven wheels 202 and the balance supporting wheel 315 can also be used to form a three-point support on the ground, so that the entire folded electric scooter can be placed in a stable state at any time.

After the vehicle is folded, the upright balance pressure blocks 316 on the left and right sides of the front end of the first connecting rod 304 are correspondingly pressed against the top surface of the upper balance crossbar 206, so that the two driven wheels 202 cannot swing up and down to ensure The vehicle will not tip over when parked upright.

When the vehicle is unfolded, the lifting rod 312 at the rear end of the hook 310 is lifted to disengage the locking crossbar 309 from the hook 310. The electric scooter moves in the reverse direction according to the folding process and directly unfolds the body. After unfolding, under the action of the spring, the unfolding lock rod 313 flips down around the pin at the connection point with the middle of the first connecting rod 304, and the unfolding lock rod 313 is correspondingly locked in the hook 314. 314 hooks the unfolding lock rod 15 to ensure a stable structure of the foldable electric scooter when it is unfolded.

The foldable and towed electric scooter of the present application has the following advantages:

1. The scooter of this application adopts an inverted three-wheeled structure, and the vehicle has good cornering and anti-skid ability, which is safer than a two-wheeled vehicle;

2. The shaft body 10, the first connecting rod 304, the second connecting rod 305, and the third connecting rod 306 constitute a four-bar linkage mechanism, the second connecting rod 305, the third connecting rod 306, and the fourth connecting rod 307 And the fifth link 308 form another four-link mechanism. When the vehicle is folded, the adjacently connected second link 305 and the fourth link 307 can be folded and turned over 180 degrees, which overcomes the single four-link mechanism The technical problem that the front and rear connecting rods cannot be turned over at a large angle, so that the body of the electric scooter is folded above the wheels, the volume is greatly reduced after folding, and the floor area occupied during storage is less, which is convenient to carry and store;

3. When the electric scooter is folded, the driving wheel 301 correspondingly enters between the two driven wheels 202, and the three wheels are side by side close to the ground. The body is on the top, and larger wheels can be selected. The storage area is still small after folding. It can ensure that the vehicle has a better passing capacity;

4. After being folded, the front two driven wheels are used to tow with very low resistance, and it can be carried as convenient and labor-saving as a tow box. Therefore, it is still convenient to carry with a larger battery and has a large continuous ability.

As shown in FIG. 8, in another embodiment of the present application, the foldable electric scooter is based on those shown in FIGS. 1 to 7, and the body part further includes a seat 318, a connecting column 319 and a support A connecting rod 320, the seat 318 is fixed to the body 303 through a connecting column 319, a hinge seat 321 is provided on the fifth connecting rod 308, and the front end of the support link 320 is movably connected to the hinge seat 321, The rear end is movably connected with the connecting column 319. The frame component further includes a pedal 322 and a rotating gear 323 fixedly connected to the pedal 322. The rotating gear 323 is connected to the driving wheel 301 through a chain 324, and the driving wheel 301 is driven by human power. run.

The above descriptions are only preferred embodiments of the application, and do not impose any formal limitations on the application. Those skilled in the art can apply various equivalent changes and improvements on the basis of the above-mentioned embodiments, and all equivalent changes or modifications within the scope of the claims shall fall within the protection scope of this application.

Summary of the invention

technical problem

The solution to the problem

The beneficial effects of the invention

Claims

A foldable electric scooter includes a front frame part and a body part, characterized in that: the foldable electric scooter also includes a central axle column structure for connecting the front frame part and the body part ；

The central axle column structure includes an axle column body (10), an eccentric connector (20), and the axle column body (10) is provided with front frame mounting holes (15, 16) and body mounting holes (12, 13). ), the upper end of the shaft body (10) is formed with a rotating shaft (11) with an outer diameter smaller than the outer diameter of the shaft body (10), and the eccentric connecting piece (20) includes a first sleeve (21) And a second sleeve (22) eccentrically connected to the first sleeve (21), the first sleeve (21) is sleeved on the rotating shaft (11), and the rotating shaft (11) is far away A blocking member (30) is provided at one end of the shaft body (10);

The front frame components include a handle (201), two driven wheels (202), two driven wheel brackets (203), two steering sleeves (205), an upper balance crossbar (206), and a lower balance The cross bar (207) and the steering control rod (208), the driven wheel (202) is installed at the lower end of the driven wheel bracket (203), and the upper end of the driven wheel bracket (203) is formed with a rotating shaft (204), so The steering sleeve (205) is sleeved on the rotating shaft (204), the left and right ends of the upper balance crossbar (206) are respectively movably connected with the upper end of a steering sleeve (205), and the upper balance crossbar The middle part of (206) is movably connected with the axle column body (10) through the front frame mounting hole (15); the left and right ends of the lower balance crossbar (207) are respectively connected to the lower end of a steering sleeve (205) The middle part of the lower balance crossbar (207) is movably connected with the axle column body (10) through the front frame mounting hole (16), and the left and right ends of the steering control rod (208) are respectively connected to a The top end of the rotating shaft (204) of the driven wheel bracket (203) is movably connected, the middle part of the steering control rod (208) is connected to the lower end of the second sleeve (22), and the handle (201) is inserted in the On the second casing (22);

The body parts include a driving wheel (301), a driving wheel bracket (302), a body (303), a first link (304), a second link (305), a third link (306), and a fourth link. The connecting rod (307), the fifth connecting rod (308) and the deployment lock rod (313), the driving wheel (301) is installed at the rear end of the driving wheel bracket (302), the driving wheel bracket (302) The front end of the vehicle body (303) is connected to the rear end of the vehicle body (303), the fourth link (307) is fixedly connected to the front end of the vehicle body (303), and the front end of the first link (304) passes through the body mounting hole (12) It is movably connected with the upper end of the shaft body (10), and the rear end is movably connected with the front end of the third link (306) and the fifth link (308) at the same time; the second link (305) The front end of) is movably connected to the lower end of the axle column body (10) through the body mounting hole (12), the rear end is movably connected to the rear end of the fourth link (307), and the middle part is movably connected to the third link ( 306) is movably connected; the front end of the fourth link (307) is movably connected with the rear end of the fifth link (308), and the middle of the first link (304) is connected by a lock (317) Connected with the deployment lock rod (313), the deployment lock rod (313) can be correspondingly locked in the hook (314) formed at the front end of the third link (306);

Flip the unfolding lock rod (313) upward to disengage the unfolding lock rod (313) from the hook (314) at the front end of the third link (306). At this time, the front end of the first link (304) is around the shaft column. The main body (10) rotates, the rear end moves upward and the rear end of the second link (305) moves upward through the third link (306), so that the rear end of the fourth link (307) is relative to the second link The rear end of the rod (305) rotates to bring the driven wheel (202) and the driving wheel (301) close, when the first link (304) and the second link (305) move up to be parallel to the shaft body (10) , The driving wheel (301) enters between the two driven wheels (202) correspondingly.
The foldable electric scooter according to claim 1, characterized in that: the left and right sides of the front end of the first connecting rod (304) are respectively provided with upright balance pressure blocks (316).
The foldable electric scooter according to claim 1, characterized in that: the lower end of the body (303) is provided with a locking crossbar (309), and the lower end of the axle body (10) is provided with a A hook (310), the middle part of the hook (310) is movably connected with the lower end of the shaft body (10), and the front end of the hook (310) is provided with a corresponding locking bar (309) for clamping In the fixed groove (311), the rear ends of the two hooks (310) are connected by a lifting rod (312).
The foldable electric scooter according to claim 1, wherein a return spring is installed on the hook (310), and the hook (310) automatically interacts with the lock under the action of the return spring. The tight crossbar (309) is engaged.
The foldable electric scooter according to claim 1, characterized in that: a balance support wheel (315) is installed on the rear side of the driving wheel (301).
The foldable electric scooter according to claim 1, characterized in that: the lower end of the second sleeve (22) is provided with a connecting post (50), and the middle of the steering control rod (208) is provided with a connecting seat (209), the connecting post (50) at the lower end of the second sleeve (22) is inserted into the connecting hole of the connecting seat (209).
The foldable electric scooter according to claim 1, wherein the body part further comprises a seat (318), a connecting column (319) and a supporting link (320), the seat (318) It is fixed to the vehicle body (303) by a connecting column (319), a hinge seat (321) is provided on the fifth link (308), and the front end of the support link (320) is connected to the hinge seat (321). ) Active connection, the back end is movably connected to the connecting column (319).
The foldable electric scooter according to claim 7, characterized in that: the body part further comprises a pedal (322) and a rotating gear (323) fixedly connected to the pedal (322), The rotating gear (323) is connected with the driving wheel (301) through a chain (324).