阅读说明：本技术 一种基于物联网的滑板车 (Scooter based on thing networking ) 是由 曹中华 喻长钰 王兴 颜铃 于 2021-09-10 设计创作，主要内容包括：本发明涉及基于物联网的滑板车技术领域。基于物联网的滑板车包括：滑板车本体及设置在所述滑板车本体上的物联网用户终端；所述物联网用户终端包括：数据采集模块、微处理器及第一通信模块,所述数据采集模块采集所述滑板车本体的状态信息并将所述滑板车本体的状态信息传输至微处理器；所述微处理器将所述滑板车本体的状态信息处理后经所述第一通信模块上传至中央管理控制平台；所述微处理器还通过所述第一通信模块接收中央管理控制平台的控制指令,所述微处理器根据控制指令控制所述物联网用户终端。本发明公开的基于物联网的滑板车,用户可以通过客户端远程查看滑板车的相关信息,实时掌握滑板车的状态,并对滑板车进行远程控制。(The invention relates to the technical field of scooters based on the Internet of things. Scooter based on thing networking includes: the scooter comprises a scooter body and an Internet of things user terminal arranged on the scooter body; the internet of things user terminal comprises: the scooter comprises a data acquisition module, a microprocessor and a first communication module, wherein the data acquisition module acquires state information of the scooter body and transmits the state information of the scooter body to the microprocessor; the microprocessor processes the state information of the scooter body and uploads the state information to a central management control platform through the first communication module; the microprocessor also receives a control instruction of a central management control platform through the first communication module, and the microprocessor controls the Internet of things user terminal according to the control instruction. According to the scooter based on the Internet of things, disclosed by the invention, a user can remotely check the relevant information of the scooter through the client, grasp the state of the scooter in real time and remotely control the scooter.)

1. The utility model provides a scooter based on thing networking which characterized in that includes: the scooter comprises a scooter body and an Internet of things user terminal arranged on the scooter body;

the internet of things user terminal comprises: the scooter comprises a data acquisition module, a microprocessor and a first communication module, wherein the data acquisition module acquires state information of the scooter body and transmits the state information of the scooter body to the microprocessor; the microprocessor processes the state information of the scooter body and uploads the state information to a central management control platform through the first communication module; the microprocessor also receives a control instruction of a central management control platform through the first communication module, and the microprocessor controls the Internet of things user terminal according to the control instruction.

2. The internet of things-based scooter of claim 1, wherein the data acquisition module comprises: the system comprises a data transmission unit, and a battery electric quantity acquisition unit, a battery temperature acquisition unit, a brake acquisition unit and a driving mileage acquisition unit which are respectively in signal connection with the data transmission unit; the data transmission unit is in signal connection with the microprocessor.

3. The internet of things-based scooter of claim 5, wherein the data transmission unit is in communication connection with the microprocessor through SIP.

4. The internet of things-based scooter of claim 4, wherein the first communication module is a WLAN communication module, a GPRS communication module, a CDMA communication module or an OFDM communication module.

5. The internet of things-based scooter of claim 1, wherein the state information of the scooter body comprises: battery power information, battery temperature information, braking frequency information and driving mileage information.

6. The scooter based on the internet of things of claim 1, wherein the internet of things user terminal further comprises a display module, and the display module is connected with the microprocessor and used for displaying the state information of the scooter.

7. The internet of things-based scooter of claim 6, wherein the display module is a touch display screen.

8. The internet of things-based scooter of any one of claims 1-7, wherein the scooter body comprises a body device and an expansion device; the vehicle body device comprises a pedal plate, and the expanding device is mounted on the pedal plate;

the expansion device comprises: the device comprises a fixed base, an end cover, a driving assembly and a plurality of unfolding assemblies; the fixed base is installed on the pedal plate, an accommodating groove is formed in the fixed base, the end cover covers the accommodating groove of the fixed base, the plurality of unfolding assemblies are arranged on the fixed base and are arranged on two sides of the fixed base, and the driving assembly is in driving connection with the plurality of unfolding assemblies.

9. The Internet of things-based scooter of claim 8,

the unfolding component comprises a driving gear and a driven spreading wing; the driving gear is rotatably arranged in the accommodating groove, and the driven spreading wings are fixedly arranged on the driving gear;

the driving assembly comprises a driving sliding block, and a rack matched with the driving gear is arranged on the driving sliding block.

10. The internet of things-based scooter according to claim 9, wherein the expanding device further comprises locking devices, the locking devices are arranged on the side walls of the two sides of the fixed base, and the locking devices are used for blocking the driven spreading wings;

the vehicle body comprises a braking device, the braking device comprises a braking handle and a braking rope, the braking handle is connected with the braking rope, and the braking rope penetrates through the side walls on the two sides of the fixed base;

the locking device comprises a blocking block and a compression spring, the blocking block is connected with the brake ropes through steel ropes, the compression spring is arranged between the blocking block and the brake ropes, and the compression spring provides elastic force for the blocking block.

Technical Field

The invention relates to the technical field of scooters, in particular to a scooter based on the Internet of things.

Background

The scooter is based on traditional manpower slide, and the instrument of riding instead of walk of electric drive external member in addition, it has small in size, and the flexible operation easily learns characteristics such as easy meeting, is often used as the short distance instrument of riding instead of walk by people. The weight of scooter is very light relatively ordinary electric motor car, transport that can be lighter, can accomodate even behind private car trunk, takes out the use when having the needs of riding instead of walk. Therefore, the scooter has great advantages in solving the problem of the last kilometer.

However, the acquisition of information related to the scooter by the user is limited to information cards, user manuals, and the like attached to the delivery of the scooter. The electric quantity information of scooter battery can only show on the scooter, can't long-rangely look over.

In addition, the information such as the mileage of going of scooter, the number of times of braking also can't long-rangely look over.

Therefore, how to design a scooter based on thing networking for the user can grasp the state of scooter in real time through the long-range relevant information of looking over the scooter of customer end, and carry out remote control to the scooter, is the problem that the technical staff in the field needs to solve urgently.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a scooter based on the Internet of things.

The purpose of the invention is realized by the following technical scheme:

a scooter based on the Internet of things comprises: the scooter comprises a scooter body and an Internet of things user terminal arranged on the scooter body;

the internet of things user terminal comprises: the scooter comprises a data acquisition module, a microprocessor and a first communication module, wherein the data acquisition module acquires state information of the scooter body and transmits the state information of the scooter body to the microprocessor; the microprocessor processes the state information of the scooter body and uploads the state information to a central management control platform through the first communication module; the microprocessor also receives a control instruction of a central management control platform through the first communication module, and the microprocessor controls the Internet of things user terminal according to the control instruction.

In one embodiment, the data acquisition module comprises: the system comprises a data transmission unit, and a battery electric quantity acquisition unit, a battery temperature acquisition unit, a brake acquisition unit and a driving mileage acquisition unit which are respectively in signal connection with the data transmission unit; the data transmission unit is in signal connection with the microprocessor.

In one embodiment, the data transmission unit is connected with the microprocessor through SIP communication.

In one embodiment, the first communication module is a WLAN communication module, a GPRS communication module, a CDMA communication module, or an OFDM communication module.

In one embodiment, the state information of the scooter body includes: battery power information, battery temperature information, braking frequency information and driving mileage information.

In one embodiment, the internet of things user terminal further comprises a display module, and the display module is connected with the microprocessor and used for displaying the state information of the scooter book.

In one embodiment, the display module is a touch display screen.

In one embodiment, the scooter body comprises a scooter body device and an expansion device; the vehicle body device comprises a pedal plate, and the expanding device is mounted on the pedal plate;

the expansion device comprises: the device comprises a fixed base, an end cover, a driving assembly and a plurality of unfolding assemblies; the fixed base is installed on the pedal plate, an accommodating groove is formed in the fixed base, the end cover covers the accommodating groove of the fixed base, the unfolding assemblies are arranged in the accommodating groove of the fixed base and are arranged on two sides of the fixed base, and the driving assembly is arranged in the accommodating groove in a sliding mode and is located between the unfolding assemblies on two sides.

In one embodiment, the deployment assembly includes a drive gear and driven fins; the driving gear is rotatably arranged in the accommodating groove, and the driven spreading wings are fixedly arranged on the driving gear;

the driving assembly comprises a driving sliding block, and a rack matched with the driving gear is arranged on the driving sliding block.

In one embodiment, the expanding device further comprises locking devices, the locking devices are arranged on the side walls of two sides of the fixed base and are used for blocking the driven spreading wings;

the vehicle body comprises a braking device, the braking device comprises a braking handle and a braking rope, the braking handle is connected with the braking rope, and the braking rope penetrates through the side walls on the two sides of the fixed base;

the locking device comprises a blocking block and a compression spring, the blocking block is connected with the brake ropes through steel ropes, the compression spring is arranged between the blocking block and the brake ropes, and the compression spring provides elastic force for the blocking block.

According to the scooter based on the Internet of things, disclosed by the invention, a user can remotely check the relevant information of the scooter through the client, grasp the state of the scooter in real time and remotely control the scooter.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a system architecture diagram of an internet of things system of the scooter of the present invention;

FIG. 2 is a schematic diagram of the central management control platform shown in FIG. 1;

fig. 3 is a schematic view of an internet of things user terminal of the internet of things-based scooter shown in fig. 1;

fig. 4 is a schematic diagram of a data acquisition module of the internet of things user terminal shown in fig. 3;

FIG. 5 is a schematic view of the scooter of the present invention;

FIG. 6 is a schematic view of the expansion device shown in FIG. 5;

FIG. 7 is a schematic view of the internal structure of the expanding device shown in FIG. 6;

FIG. 8 is an enlarged view taken at A of FIG. 7;

FIG. 9 is a schematic structural view of the drive assembly shown in FIG. 7;

FIG. 10 is a schematic view of the expansion device of FIG. 7 showing a change in state;

FIG. 11 is a schematic view of the partially deployed expansion device of the present invention;

FIG. 12 is a partial cross-sectional view of the drive assembly shown in FIG. 9;

FIG. 13 is a schematic structural view of the driven fins shown in FIG. 8;

FIG. 14 is an enlarged view at B of FIG. 7;

FIG. 15 is a schematic structural view of the locking device of the present invention;

fig. 16 is an enlarged view at C shown in fig. 11.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, the present invention discloses an internet of things system 600 for a scooter, comprising: a plurality of internet of things-based scooters 700, a central management control platform 800 and a plurality of clients 900.

The plurality of internet-of-things-based scooters 700 upload their own state information to the central management control platform 800. The central management control platform 800 processes and stores the state information of the internet of things-based scooter 700. The plurality of clients 900 are communicatively connected to the central management control platform 800, and acquire the state information of the internet-of-things-based scooter 700 from the central management control platform 800 and transmit a control instruction to the central management control platform 800. The central management control platform 800 controls the internet of things-based scooter 700 according to the control instruction.

As shown in fig. 2, in the present embodiment, the central management control platform 800 includes: the system comprises a control center 810, and a data processing module 820, a data storage module 830 and a second communication module 840 which are respectively connected with the control center 810. The second communication module 840 is in communication connection with the internet of things-based scooter 700. In a preferred embodiment, the second communication module 840 is a WLAN communication module, a GPRS communication module, a CDMA communication module, or an OFDM communication module.

As a preferred embodiment, the client 900 is an APP client and/or a PC client. The user can access the central management control platform 800 through the browser of the PC client, i.e., the central management control platform 800 has a web access interface. In this embodiment, the client 900 is an APP client, and a user can access the central management control platform 800 through the APP client.

In this embodiment, internet of things-based scooter 700 includes: scooter body 10 and the thing networking user terminal 720 of setting on scooter body 10.

As shown in fig. 3, the internet of things user terminal 720 includes: a data acquisition module 721, a microprocessor 722, and a first communication module 723. The data collecting module 721 collects the state information of the scooter body 10 and transmits the state information of the scooter body 10 to the microprocessor 722. The microprocessor processes the state information of the scooter body 10 and uploads the processed state information to the central management control platform 800 through the first communication module 723. The microprocessor 722 also receives a control instruction of the central management control platform 800 through the first communication module 723, and the microprocessor 722 controls the internet of things user terminal 720 according to the control instruction. The state information of the scooter body 10 includes but is not limited to: battery power information, battery temperature information, braking frequency information and driving mileage information.

As a preferred embodiment, the first communication module 723 is a WLAN communication module, a GPRS communication module, a CDMA communication module, or an OFDM communication module. It should be noted that the second communication module 840 performs signal transmission with the first communication module 723, and the communication mode of the second communication module 840 is the same as that of the first communication module 723. For example, the second communication module 840 and the first communication module 723 are both OFDM communication modules.

As shown in fig. 4, in the present embodiment, the data acquisition module 721 includes: the data transmission unit 725, and a battery power acquisition unit 726, a battery temperature acquisition unit 727, a brake acquisition unit 728 and a driving mileage acquisition unit 729 which are respectively in signal connection with the data transmission unit 725. The data transmission unit 725 is in signal connection with the microprocessor 722. In the present embodiment, the data transmission unit 725 is connected to the microprocessor 722 by SIP communication.

As shown in fig. 3, in this embodiment, the internet of things user terminal 720 further includes a display module 724, and the display module 724 is connected to the microprocessor and is used for displaying the status information of the scooter body 10. In a preferred embodiment, the display module 724 is a touch screen display.

The operation principle of the scooter 700 based on the internet of things is described below (please refer to fig. 1 to 4 together):

the battery power acquisition unit 726 is used for acquiring battery power information, the battery temperature acquisition unit 727 is used for acquiring battery temperature information, the brake acquisition unit 728 is used for acquiring brake times information, and the driving mileage acquisition unit 729 is used for acquiring driving mileage information; each acquisition unit transmits the acquired state information to the data transmission unit 725; the data transmission unit 725 transmits the state information acquired by the acquisition unit to the microprocessor 722; the microprocessor 722 processes the state information and uploads the processed state information to the central management control platform 800 through the first communication module 723, and the processed state information is displayed through the touch display screen to remind a user of charging in time, replacing brake parts and the like;

the control center 810 of the central management control platform 800 transmits the received status information to the data processing module 820 for processing; the state information is stored in the data storage module 830 after being processed, and meanwhile, the central management control platform 800 further provides a web access interface to enable the PC client 900 to read the state information of the scooter body 10 through a browser and the like and input a control instruction to the central management control platform 800 according to the state information of the scooter body 10; the central management control platform 800 transmits the received control command to the microprocessor 722 through the signal connection of the second communication module 840 and the first communication module 723; the microprocessor 722 controls the information acquisition of the scooter body 10 according to the control instruction, so as to realize the remote control of the scooter 700 based on the internet of things;

the scooter 700 based on the internet of things and the internet of things system 600 of the scooter provided by the invention realize real-time remote monitoring and remote control of the scooter 700 based on the internet of things; the convenience of customers can acquire the implementation state information of the scooter 700 based on the internet of things through the client 900 at any time and any place, and the user experience is good.

In addition, the pedal position of the traditional scooter is narrow at present, the width of only one foot can be generally accommodated, and when the scooter is driven, the left foot and the right foot of a driver need to stand front and back respectively, so that the driver feels uncomfortable easily. Moreover, when the driver needs to carry an article, he or she often chooses to place the article on the pedal, but the pedal is narrow and the article is prone to fall and fall, which causes inconvenience. If directly design spaciously with the footboard of scooter before production, then increased the volume of scooter, not conform to the design original intention of scooter at first.

Therefore, the internet-based scooter further solves the technical problem, and the width of the pedal position can be expanded only when needed.

In this embodiment, the scooter body 10 can expand the pedal position, as shown in fig. 5, and includes a body device 20 and an expansion device 30. The vehicle body device 20 includes a step plate 21, and the expansion device 30 is mounted on the step plate 21.

As shown in fig. 6 and 7, the expansion device 30 includes: a fixed base 100, an end cap 200, a drive assembly 300, and a plurality of deployment assemblies 400. The fixed base 100 is installed on the pedal 21, the fixed base 100 is provided with an accommodating groove 110, the end cover 200 covers the accommodating groove 110 of the fixed base 100, the plurality of unfolding assemblies 400 are arranged on the fixed base 100 and are arranged at two sides of the fixed base 100, and the driving assembly 300 is in driving connection with the plurality of unfolding assemblies 400, so that the plurality of unfolding assemblies 400 are accommodated in the accommodating groove 110 or unfolded out of the accommodating groove 110.

Specifically, as shown in fig. 8, the unfolding assembly 400 includes a driving gear 410 and a driven spreading fin 420, the driving gear 410 is rotatably installed in the accommodating groove 110, and the driven spreading fin 420 is fixedly installed on the driving gear 410. As shown in fig. 9, the driving assembly 300 includes a driving slider 310, and a rack 311 engaged with a pinion gear 410 is disposed on the driving slider 310.

As shown in fig. 10, the driven fins 420 are initially accommodated in the accommodation grooves 110. When the expansion is needed, a driver drives the expansion assembly 400 through the driving assembly 300, so that the driving slider 310 drives the driving gear 410 to rotate, and further drives the driven spreading wings 420 to expand, two sides of the expansion device 30 are extended, namely, the width of the pedal 21 is expanded, and the width of the pedal 21 is increased. When the expansion is not needed, the driver operates the driving assembly 300 in the reverse direction, so that the driving gear 410 drives the driven fins 420 to rotate in the reverse direction, and the driven fins 420 are recovered.

Further, in the process of using the expanding device 30, sometimes only the width of a partial region of the footboard 21 needs to be expanded, and only the partial driven fins 420 at the corresponding positions need to be unfolded, as shown in fig. 11. In order to achieve the above functions, in the present embodiment, the structure of the expansion device 30 is specially designed, specifically:

as shown in fig. 9, the driving assembly 300 further includes a roll-over pedal 320 and a telescopic elastic member 330. As shown in fig. 12, the driving slider 310 is provided with a connecting rod 312, the flipping pedal 320 is rotatably disposed on the connecting rod 312, the flipping pedal 320 is located above the end cap 200, the flipping pedal 320 has a stepping portion 321 and a pressing portion 322, and the elastic member 330 connects the driving slider 310 and the pressing portion 322 of the flipping pedal 320. In addition, in order to keep the driving assembly 300 stable after adjustment, the pressing portion 322 of the flipping pedal 320 is further provided with a positioning tooth 323, and the end cap 200 is provided with a comb-tooth engaging slot 210 (as shown in fig. 6) engaged with the positioning tooth 323. Preferably, the elastic member 330 is a spring structure.

During adjustment, a driver can make the positioning teeth 323 on the pressing and holding part 322 separate from the comb tooth clamping grooves 210 by stepping on the turnover pedal 320, so as to push the driving assembly 300 to move; after adjustment, the elastic member 330 pulls the pressing portion 322 of the flipping pedal 320, so that the positioning teeth 323 sink into the comb slots 210, thereby stabilizing the driving assembly 300. Specific procedures will be described below.

The working principle of the expanding device 30 of the present invention is explained with reference to the above structure, please refer to fig. 6, fig. 10, fig. 11 and fig. 12 together:

when the expansion is needed, a driver steps on the stepping portion 321 of the flip pedal 320, and the flip pedal 320 rotates after being pressed, so that the pressing portion 322 of the flip pedal 320 is separated from the comb tooth clamping groove 210 of the end cover 200, and at this time, the positioning teeth 323 on the pressing portion 322 are no longer clamped with the comb tooth clamping groove 210, and the flip pedal 320 can be pushed. Then, the driver pushes the flipping pedal 320 to move, so as to drive the driving slider 310 to slide together, and since the rack 311 is meshed with the driving gear 410, the driving gear 410 engaged with the driving slider 310 will also rotate along with the sliding of the driving slider 310, so as to drive the driven fins 420 thereon to rotate together, thereby realizing the unfolding of the driven fins 420. Of course, since the driving gear 410 is driven only when the driving gear 410 is engaged with the driving slider 310, and the driving gear 410 is not driven any more when the driving gear 410 is disengaged from the driving slider 310, the driver only needs to push the driving slider 310 to a proper position when only partial expansion is required. After the unfolding is completed, the driver releases the turnover pedal 320, the pressing part 322 of the turnover pedal 320 is pressed on the end cover 200 again under the action of the telescopic elastic part 330, the positioning teeth 323 of the pressing part 322 sink into the comb tooth clamping grooves 210 again, at this time, the turnover pedal 320 cannot move under the clamping of the comb tooth clamping grooves 210, and the driving assembly 300 is stably kept at the current position;

when the expansion is not needed, the driver steps on the stepping part 321 again to separate the pressing part 322 of the turnover pedal 320 from the comb tooth clamping groove 210, then reversely pushes the turnover pedal 320 to drive the driving slider 310 to reversely slide, after the driving slider 310 is meshed with the corresponding driving gear 410, the driving slider 310 which reversely slides drives the driving gear 410 to reversely rotate, and then the driven spreading wings 420 also reversely rotate, so that the driven spreading wings 420 are recovered. Similarly, if only part of the driven fins 420 need to be recovered, the driver only needs to push the driving slider 310 to the corresponding position. After the recovery is completed, the driver releases the flip pedal 320, and the positioning teeth 323 of the pressing and holding portion 322 sink into the comb tooth slots 210 again under the action of the elastic member 330, so that the flip pedal 320 is held by the comb tooth slots 210, and the driving assembly 300 is stably maintained at the current position.

It should be noted that, when the partial deployment or the partial retraction is performed, since the driving slider 310 can only slide in the corresponding direction, the plurality of deployment modules 400 can only be sequentially deployed or retracted in the order of arrangement, as shown in fig. 11. This means that the expansion of the expansion means 30 is sequential.

It should be further noted that, since the plurality of unfolding assemblies 400 of the expanding device 30 are independent from each other and can be partially unfolded as required, in order to avoid the interference of the plurality of driven spreading wings 420 on the same side during unfolding, in this embodiment, the structure of the expanding device 30 is optimized as follows:

first, as shown in fig. 13, the driven fins 420 include: a rotating part 421, a lever part 422, and an extending part 423. The rotating portion 421 is disposed on the driving gear 410, the rod portion 422 is connected to the rotating portion 421 and the extending portion 423, and the rod portion 422 is provided with an avoiding accommodating groove 424 matched with the extending portion 423. When the driven fins 420 are recovered, the extension part 423 of the previous driven fin 420 is accommodated in the escape accommodating groove 424 of the next driven fin 420, so that mutual interference of a plurality of driven fins 420 in the recovery process is avoided, and the length of the driven fins 420 can be prolonged without increasing the gap between two adjacent driven fins 420, so that the expanded rear pedal 21 is wider;

next, as shown in fig. 11, the plurality of driven fins 420 are sequentially unfolded according to the contact sequence with the driving slider 310 during the unfolding, so that when the next driven fin 420 is ready to be unfolded, the previous driven fin 420 is already unfolded in one step, and at this time, the extension portion 423 originally accommodated in the escape accommodating groove 424 of the next driven fin 420 is already disengaged, so that the unfolding process of the next driven fin 420 is not interfered by the previous driven fin 420, that is, the plurality of driven fins 420 are prevented from being interfered with each other during the unfolding process.

Further, considering that the driven spreading wings 420 need to be stably maintained in the existing state before and after being unfolded, the unfolding or recovering action under abnormal conditions (such as being bumped during driving) should be avoided, and therefore, in the present embodiment, the expanding device 30 is specially designed, specifically:

as shown in fig. 14, the expanding means 30 further includes locking means 500, the locking means 500 being provided on the side walls of both sides of the fixed base 100, the locking means 500 being for blocking the driven fins 420.

Preferably, as shown in fig. 5, the car body 20 includes a brake 22, the brake 22 includes a brake handle 23 and a brake rope 24, the brake handle 23 is connected to the brake rope 24, and the brake rope 24 is inserted through the side walls of the two sides of the fixing base 100. As shown in fig. 15, the locking device 500 includes a stopper 510 and a compression spring 520, the stopper 510 is connected to the brake cable 24 by a steel cable 511, the compression spring 520 is disposed between the stopper 510 and the brake cable 24, and the compression spring 520 provides an elastic force to the stopper 510. Of course, the brake device 22 further includes a brake actuator (not shown) acting on the wheel, such as a caliper brake or a drum brake, etc., the brake handle 23 drives the brake actuator through the brake cable 24 to provide friction force to the wheel to achieve the braking effect, and in practice, an appropriate brake actuator may be selected according to actual conditions, and the brake actuator is a brake actuator known to those skilled in the art, and the structure is well known in the prior art, and therefore, the detailed description thereof is omitted here.

The locking device 500 operates as follows: as shown in fig. 14 and 15, when the expansion device 30 is not required to be operated, the blocking block 510 is partially protruded under the action of the compression spring 520, and the protruded blocking block 510 blocks the driven fins 420, so that the driven fins 420 are blocked by the blocking block 510 when they are not normally spread or recovered; when the expanding device 30 needs to be operated, a driver holds the brake handle 23 tightly to pull the brake rope 24, and the blocking block 510 is connected with the brake rope 24 through the steel rope 511, so that the movement of the brake rope 24 pulls the steel rope 511, and the blocking block 510 overcomes the elastic force of the compression spring 520 and retracts into the side walls on the two sides of the fixed base 100, at this time, the driven spreading wings 420 are not blocked by the blocking block 510 any more, and the expanding and retracting actions can be smoothly completed under the driving of the driving assembly 300. Thus, with the locking device 500, the expansion device 30 can be stably kept in the normal use process, and only when the expansion device needs to be operated, the locking device 500 is unlocked, so that the driven spreading wings 420 can move.

It is noted that the position of the blocking piece 510 is also considered in order to achieve blocking of the driven fins 420 of the blocking piece 510, whether in the retracted state or in the deployed state. The locking means 500 is provided at both side walls of the fixed base 100, and the blocking piece 510 is located at a corresponding position to the escape receiving groove 424 of the driven wing 420. When the driven spreading wings 420 are in the recovery state, as shown in fig. 14, the extension part 423 of the previous driven spreading wing 420 is received in the escape receiving groove 424 of the next driven spreading wing 420, and the protruded blocking block 510 is right opposite to the escape receiving groove 424, which is equivalent to closing the extension part 423 of the previous driven spreading wing 420 in the escape receiving groove 424 of the next driven spreading wing 420, so as to achieve blocking; when the driven fins 420 are in the unfolded state, as shown in fig. 16, the blocking block 510 is located right at one side of the rod portion 422 of the driven fins 420, and blocking is achieved. And the position that the stop block 510 set up has still used lever principle ingeniously: in the recovery state, when the driver does not brake and forcibly pushes the driving assembly 300, the driven fins 420 have a tendency to spread but cannot spread, and at this time, the blocking block 510 blocks the extending portion 423 and is far away from the rotation center of the driven fins 420 to form a labor-saving lever, so that the driven fins 420 can be prevented from rotating with a small blocking force.

It is emphasized that the locking device 500 also has the following benefits: when the rider needs to operate the expansion device 30, the rider needs to first grip the brake handle 23, so that the brake actuator is also activated to brake the scooter 10 to slow down until the scooter stops. This prevents the driver from operating the expansion device 30 during driving, which could result in dangerous driving. When an operation is required, the driver should decelerate and stop the vehicle, and drive the vehicle again after the operation is completed, so that the locking device 500 can also improve the driving safety to some extent.

Further, during normal driving, although the scooter 10 sometimes needs to be braked and decelerated, in most cases, the brake deceleration only needs to be performed by the driver to slightly grip the brake handle 23, so that the brake actuator provides friction force for the wheel, thereby accelerating the wheel to decelerate, and the grip of the brake handle 23 does not cause the block 510 to be completely retracted into the side walls of the two sides of the fixed base 100, i.e. the normal braking only causes the block 510 to be partially retracted, and the driven fins 420 are still blocked by the block 510. The blocker 510 is fully retracted only when the rider fully grips the brake handle 23, at which point the brake actuator must lock the wheel, leaving the scooter 10 in a parked position. Therefore, the locking device 500 does not interfere with the braking of the scooter 10 during normal driving.

In one embodiment, as shown in fig. 10, the fixed base 100 is provided with a guide rail 120, the guide rail 120 is disposed between the two side spreading assemblies 400, and the driving slider 310 is provided with a guide groove 313 (as shown in fig. 9) engaged with the guide rail 120, so that the driving slider 310 can be kept stable during the sliding process, and is not easy to shift.

In one embodiment, the unfolding assembly 400 includes a supporting elastic member (not shown) disposed between the driving gear 410 and the fixed base 100, and the supporting elastic member provides a supporting force for the driving gear 410. Preferably, the supporting elastic member is of a spring structure. Thus, the supporting elastic member can provide an upward force for the driving gear 410 and the driven fins 420, so that the rotating portion 421 of the driven fins 420 is pressed on the end cap 200, and thus, a static friction force is formed between the driven fins 420 and the end cap 200, and the driven fins 420 are not easy to shake due to the existence of the static friction force.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.