CN205203161U - Portable remote control is ridden instead of walk and is followed robot - Google Patents
Portable remote control is ridden instead of walk and is followed robot Download PDFInfo
- Publication number
- CN205203161U CN205203161U CN201520755133.XU CN201520755133U CN205203161U CN 205203161 U CN205203161 U CN 205203161U CN 201520755133 U CN201520755133 U CN 201520755133U CN 205203161 U CN205203161 U CN 205203161U
- Authority
- CN
- China
- Prior art keywords
- car body
- walk
- robot
- portable remote
- wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model provides a small, light in weight, convenient to carry's portable remote control is ridden instead of walk and is followed robot, including the automobile body, install respectively automobile body both sides from the driving wheel with have the in -wheel motor action wheel, the place ahead of automobile body is equipped with preceding camera, headlight and preceding ultrasonic sensor, the rear of automobile body is equipped with taillight, back camera and back ultrasonic sensor, owing to having used human centrobaric body sense control, has liberated both hands control in a flexible way and can realize following the function through the distance between two bluetooth module detections and user's cell -phone. The utility model discloses a portable remote control is ridden instead of walk and is followed robot, follows the function at the remote control that has the robot simultaneously concurrently of not only can mannedly riding instead of walk, and wheeled embodiment is fit for indoor and smooth -riding surface, and caterpillar embodiment can be through the road surface of unevenness, have the embodiment of swing arm can also walk up and down stairs with cross over the obstacle.
Description
Technical field
The utility model relates to one and to ride instead of walk robot, and especially a kind of portable remote is ridden instead of walk and followed robot.
Background technology
Manned balance truck progresses into family, becomes walking-replacing tool easily, and does not also have to ride instead of walk at present, and the product that can use as robot again occurs.
Professional machines people can not be manned, and can the balance truck, battery-driven car, Segway Human Transporter etc. of manned motion, and general weight is all more than 20kg, and small-sized balance truck is all more than 10kg, and not only weight is large, and size is also large, is not easy to carry.And run into the obstacles such as step, need people take up just by, as walking-replacing tool, it is convenient not to use.
Taking segway as the balance truck of representative, is all by opto-electronic pickup, detects whether someone stands onboard, the opto-electronic pickup of current employing, and volume is comparatively large, and being unfavorable for miniaturization, is one of many reasons causing balance truck not portable.In addition in order to crossing ability is good, all balance trucks all adopt the bull wheel of more than 6 inches and large-scale wheel hub motor, also bring heavy and not portable problem.
Balance truck the lightest and the handiest in the market, the electrodynamic balance being 201420314351.5 as the patent No. turns round car, need to connect two wheels by a quill shaft, the angle detecting both sides pedals controls car body and turns to, also bring complicated in mechanical structure, size greatly, the problem such as not portable.
And in control, all balance trucks, all adopt gyroscope system, user is by health leaning forward and swinging back slightly, change the inclination angle of pedal, the angle of inclination of pedal is detected by gyroscope, realize advancing, accelerate, slow down, the moving operations such as brake, this just requires that pedal the moment must keep horizontality, and the electric return board of four-wheel, or the Segway Human Transporter of front and back two-wheeled, although more steady, but the level of pedal cannot be kept when running into uphill/downhill, therefore gyroscope cannot be adopted to carry out controlled motion, handle can only be used, or independent remote controller controls the motion of car body, also the inconvenience in use is brought.
And nearly all electronic slide plate all needs hand-held remote controller to come control rate and brake, it is convenient not to use.
Above-mentioned various reasons, to cause be existing Electrical Bicycle, electrodynamic balance car, Segway Human Transporter are all comparatively heavy, not portable, obstacle crossing ability is limited, can not stair climbing, cause that field of application is little, the market space is limited.
Utility model content
The utility model provides a kind of volume is little, lightweight, easy to carry, crossing ability is good portable remote and rides instead of walk and follow robot.
Realize a kind of portable remote of the utility model object to ride instead of walk and follow robot, comprise car body, upper cover, Ti Gan mechanism, be arranged on respectively car body both sides flower wheel and with wheel hub motor driving wheel; The pressure sensor that the described Ti Gan mechanism four direction comprised above car body is respectively equipped with, to be fixed on above car body and to be connected with control desk and acceleration pick-up; Described pressure sensor between upper cover and car body, described upper cover, be connected to car body by rubber pad with spring bolt above and be connected with pressure sensor, the front of described car body is provided with front camera, headlight and front ultrasonic transduter; The rear of described car body is provided with back light, rear camera and rear ultrasonic transduter; Described left and right two wheel hub motors are with drive wheel.
Main control board is provided with in described car body, swing arm motor, battery, acceleration pick-up, two, left and right bluetooth module, described main control board is connected with wheel hub motor, bluetooth module, wifi module, pressure sensor, acceleration pick-up, front camera, rear camera, front ultrasonic transduter, rear ultrasonic transduter, battery, headlight and back light respectively.
Described driving wheel and flower wheel are provided with crawler belt.
Described car body is provided with the swing arm motor be connected with main control board, described swing arm motor is connected with oscillating arm bracket by arm shaft, described oscillating arm bracket is provided with little flower wheel, described little flower wheel is provided with swing arm crawler belt, the other end of described swing arm crawler belt is enclosed within little flower wheel, be provided with detachable cross bar between described two little flower wheels, described cross bar is provided with panel computer erecting frame.
Described car body is provided with the resilient rubbber cushion of middle with hole, and described upper cover is arranged on car body by spring and screw and resilient rubbber cushion.
Described car body is provided with upper cover, covers and be provided with removable flexible non-slip mat on described, and removable flexible non-slip mat is covered upper by protruding jiont treatment.
The rear of described car body is provided with USB port and charging inlet.
The front end of described upper cover is provided with handle.
Described forward and backward camera and car body adjustable angle.
This patent carries out body sense by gravity center of human body and controls body movement, become four pressure sensors of four-quadrant arrangement, described pressure sensor is pasted onto on elastic support by strain resistor and forms, and be positioned at below upper plate, be fixed on car body top, and four pressure sensors are connected with main control board, according to the pressure value of each sensor, calculate the center of gravity of human body, center of gravity is at the sense of motion that decide robot all around of car body, and the difference of all around pressure, determine direction and the speed of robot; When pressure above large later time, then travel forward, speed be directly proportional to pressure difference value; When pressure when is below greater than above, then brake or move backward, speed is directly proportional to pressure difference value; When left pressure be greater than right side, then left-handed turning to, speed is directly proportional to pressure difference value; When right atrial pressure be greater than left side, then right-hand turning to, speed is directly proportional to pressure difference value; And acceleration pick-up detects and control car body and avoid when accelerating the excessive human body that causes of acceleration/accel to drop car body; If pressure sensor does not detect pressure within a period of time, then control car body and stop, can blue Tooth remote controller or mobile phone remote body movement be passed through simultaneously in the stress-free situation of sensor, be applicable to following and stair activity.
This patent can detect by the bluetooth module on left side bluetooth and right side the intensity being attached thereto the user mobile phone Bluetooth signal connect, when the signal strength that the bluetooth module that the signal strength that left side bluetooth module receives is greater than right side receives, can judge that the mobile phone of user is positioned on car body direction to the left, then control car body to rotate to the left, until both sides intensity is equal; When the signal strength that the bluetooth module that the signal strength that right side bluetooth module receives is greater than left side receives, can judge that the mobile phone of user is positioned on car body direction to the right, then control car body and rotate to the right, until both sides intensity is equal.
A kind of portable remote of the present utility model beneficial effect of following robot of riding instead of walk is as follows:
A kind of portable remote of the present utility model is ridden instead of walk and is followed robot, small in volume, is convenient for carrying, and has the remote control of robot concurrently, follows function, crawler-mounted can when not standing people stair activity and leaping over obstacles.And on smooth-riding surface, robot can mannedly run, by adjustment, gravity center of human body carrys out seesawing of control, control and very easy to use, with two bluetooth module on it, the mobile phone motion of user can be followed, realize the accompany movement to human body, also can pass through bluetooth or wifi, realize the remote manipulation to robot body.
A kind of portable remote of the present utility model is ridden instead of walk and is followed robot, can mannedly move, and is not only applicable to short distance and rides instead of walk use, be also applicable to being placed on family, by Long-distance Control, realize family's monitoring, video conversation, long-range company, etc. function.Due to can stair activity, also can use as Detecting Robot, of many uses, have great application prospect.
Accompanying drawing explanation
Fig. 1 is that a kind of portable remote of the present utility model is ridden instead of walk and followed the structural representation of robot.
Fig. 2 is that a kind of portable remote of the present utility model is ridden instead of walk the structural representation of the removal upper cover of following robot.
Fig. 3 be a kind of portable remote of the present utility model ride instead of walk follow robot car body in the structural representation in direction, bottom side.
Fig. 4 is that a kind of portable remote of the present utility model is ridden instead of walk the structural representation of another embodiment of following robot.
Detailed description of the invention
As shown in 1 ~ 3 figure, a kind of portable remote of the present utility model is ridden instead of walk and is followed robot, comprises car body 1, upper cover 10, Ti Gan mechanism, is arranged on the flower wheel 3 of car body 1 both sides and the driving wheel 2 with wheel hub motor respectively; The pressure sensor 17 that the described Ti Gan mechanism four direction comprised above car body 1 is arranged respectively, to be fixed on above car body 1 and to be connected with main control board 26 and acceleration pick-up 30; Described pressure sensor 17 is between upper cover 10 and car body 1, described upper cover 10 to be connected to above car body 1 by rubber pad 16 and spring bolt and to be connected with pressure sensor 17, and the front of described car body 1 is provided with front camera 14, headlight 15 and two front ultrasonic transduters 13; The rear of described car body 1 to be provided with after 18, one, two back lights ultrasonic transduter 19 after camera 25 and two; Described left and right two wheel hub motors are with drive wheel.
Main control board 26 is provided with in described car body 1, swing arm motor 27, battery 22, acceleration pick-up 30, left bluetooth module 29, right bluetooth module 23, described main control board 26 is connected with wheel hub motor 2, left bluetooth module 29, right bluetooth module 23, wifi module 24, pressure sensor 17, acceleration pick-up 30, front camera 14, rear camera 25, front ultrasonic transduter 13, rear ultrasonic transduter 19, battery 22, headlight 15 and back light 18 respectively.
Described wheel hub motor driving wheel 2 and flower wheel 3 are provided with crawler belt 4.
The WIFI module 24 be connected with main control board 26 is also provided with in described car body 1.
Described car body 1 is provided with upper cover 10, and described lid 10 is provided with removable flexible non-slip mat 11, and removable flexible non-slip mat 11, by protruding joint, is arranged on and covers 10.
Described car body 1 is provided with the resilient rubbber cushion 16 of four middle with holes, described upper cover 10, and by being with the bolt of spring, is arranged on four resilient rubbber cushions 16 by flexible way.
The rear of described car body 1 is provided with USB port 21 and charging inlet 20.
The front end of described upper cover 10 is provided with handle 12.
Described car body is provided with the swing arm motor 27 be connected with main control board 26, described swing arm motor 27 is connected with oscillating arm bracket 5 by arm shaft 28, described oscillating arm bracket 5 is provided with little flower wheel 7, described little flower wheel 7 is provided with swing arm crawler belt 6, and the other end of described swing arm crawler belt 6 is enclosed within flower wheel 3.Controlling swing arm motor 27 by main control board 26 drives arm shaft 28 to control the angle of oscillating arm bracket 5, is convenient to robot stair climbing or leaping over obstacles.
Two little flower wheels are equipped with detachable cross bar 8, and cross bar 8 is provided with panel computer erecting frame 9, can install panel computer or telltale, for display device people state or display long-distance video.
The body sense control system of robot is installed on above car body 1, the elastic block rubber 16 of four middle with holes is symmetrically distributed in above car body 1, play the supplemental support effect to upper plate, bolt can be passed through in the hole of hollow, upper cover 10 is fixed on car body 1 by spring, above car body 1, right front pressure sensor is housed, left front pressure sensor, right back pressure sensor, left back pressure sensor, right-angled crossing is become to be symmetrically distributed in above car body, pressure sensor is pasted onto on elastic support by strain resistor and forms, and be in below upper cover 10, be connected with upper cover 10, for detecting the distribution of pressure situation that car body transmission comes, and control body movement by the sense of gravity center of human body's body, become four pressure sensors of four-quadrant arrangement, described pressure sensor is positioned at below upper cover 10, be fixed on car body 1 top, and four pressure sensors are connected with main control board 26, according to the pressure value of each sensor, calculate the center of gravity of human body, center of gravity is at the sense of motion that decide car body all around of car body, and the difference of all around pressure, determine direction and the speed of car body, when pressure above large later time, then travel forward, speed be directly proportional to pressure difference value, when the pressure when is below greater than above, then brake or move backward, speed is directly proportional to pressure difference value, when left pressure is greater than right side, then left-handed turning to, speed is directly proportional to pressure difference value, when right atrial pressure is greater than left side, then right-hand turning to, speed is directly proportional to pressure difference value, and acceleration pick-up 30 detects and control car body when acceleration by main control board 26 and avoid the excessive human body that causes of acceleration/accel to drop car body 1.
If pressure sensor 17 does not all detect pressure, then explanation robot is not stood people, then control car body at once and stop, can pass through blue Tooth remote controller or mobile phone remote body movement in this case simultaneously, be applicable to following and stair activity.Use the center of gravity body sense control method of pressure sensor, human detection and control can be united two into one, both hands are not only liberated, also reduce the complexity of control system, improve reliability, and because sensor material can be very light very thin, and then decrease the size of control system, greatly reduce the weight of robot simultaneously.
A kind of portable remote of the present utility model is ridden instead of walk and is followed robot, main control board 26 is connected with two, left and right wheel hub motor 2 respectively, can control the speed of left and right motor, main control board 26 is also connected with left bluetooth module 29, right bluetooth module 23 respectively in addition
The intensity being attached thereto the user mobile phone Bluetooth signal connect can be detected by left bluetooth module 29 and right bluetooth module 23, when the signal strength that left bluetooth module 29 receives is greater than the signal strength of right bluetooth module 23 reception, can judge that the mobile phone of user is positioned on car body direction to the left, then control car body to move to the left, until both sides intensity is equal; When the signal strength that right bluetooth module 23 receives is greater than the signal strength of left bluetooth module 29 reception, can judge that the mobile phone of user is positioned on car body direction to the right, then control car body and move to the right, until both sides intensity is equal.The bluetooth motion that car body followed by user mobile phone can be realized like this, can realize following the function that people advances.Use bluetooth to also have a benefit to be can control with Bluetooth of mobile phone, additionally need not carry other control conveniences such as super sonic, easy to use, and the angle position of not placing by user mobile phone affects.
And 2 front ultrasonic wave module 13 that car body is installed are with ultrasonic wave module 19 after 2, be connected with main control board 26, the distance with obstacle can be judged, avoid bumping against object, also can detect simultaneously with by the distance of follower, avoid hypertelorism or excessively near, can also verify each other with the signal strength of bluetooth, to ensure the accurate of following distance.
Wifi module is connected with controller, can be connected with the wifi network of family or mobile phone, be used for the vision signal of the front camera of transferring robot 14, rear camera 25, and by mobile phone, long-range motion control is carried out to robot, its panel computer mounting bracket 9 can fill panel computer above, long-distance video dialogue can be realized, the functions such as long-range company.
In order to expendable weight and portable, robot have employed high-power, undersized brushless hub electric motor, because electric machine built-in is in wheel, greatly reduces total mass and the size of power system.In order to improve obstacle climbing ability, robot adopts track structure, drives flower wheel by driving wheel by crawler belt; In order to realize the ability of stair climbing, also with swing arm crawler belt on one group of wheel of robot, when not needing to climb building, swing arm crawler belt is accommodated in car body both sides, and when needing to climb building, utilizes swing arm motor 27 to control the angle of swing arm, robot by remote control or can follow mode, stairs.
Embodiment 2
As shown in Figure 4, a kind of portable remote of the present utility model is ridden instead of walk and is followed robot, can not use crawler belt, the use wheel of simplification, the left and right sides is provided with the driving wheel 2 with wheel hub motor, the left and right sides is provided with flower wheel 3, although wheeled construction is short of to some extent, because structure is simple on obstacle detouring with the ability on adaptation ground, weight can be reduced further, more light and handy, be more suitable in indoor, or smooth section uses.
Embodiment recited above is only be described preferred implementation of the present utility model; not scope of the present utility model is limited; do not departing under the utility model designs spiritual prerequisite; the various distortion that the common engineering staff in this area make technical solutions of the utility model and improvement, all should fall in protection domain that claims of the present utility model determine.
Claims (8)
1. portable remote is ridden instead of walk and is followed a robot, it is characterized in that: comprise car body, upper cover, Ti Gan mechanism, be arranged on respectively car body both sides flower wheel and with wheel hub motor driving wheel; The pressure sensor that the described Ti Gan mechanism four direction comprised above car body is respectively equipped with, to be fixed on above car body and to be connected with control desk and acceleration pick-up; Described pressure sensor is pasted onto on elastic support by strain resistor and forms, and between upper cover and car body, described upper cover, be connected to car body by rubber pad with spring bolt above and be connected with pressure sensor, the front of described car body is provided with front camera, headlight and front ultrasonic transduter; The rear of described car body is provided with back light, rear camera and rear ultrasonic transduter; Described left and right two wheel hub motors are with drive wheel, be provided with main control board, swing arm motor, battery, acceleration pick-up, two, left and right bluetooth module in described car body, described main control board is connected with wheel hub motor, bluetooth module, wifi module, pressure sensor, acceleration pick-up, front camera, rear camera, front ultrasonic transduter, rear ultrasonic transduter, battery, headlight and back light respectively.
2. a kind of portable remote according to claim 1 is ridden instead of walk and is followed robot, it is characterized in that: described driving wheel and flower wheel are provided with crawler belt.
3. a kind of portable remote according to claim 1 is ridden instead of walk and is followed robot, it is characterized in that: described car body is provided with the swing arm motor be connected with main control board, described swing arm motor is connected with oscillating arm bracket by arm shaft, described oscillating arm bracket is provided with little flower wheel, described little flower wheel is provided with swing arm crawler belt, the other end of described swing arm crawler belt is enclosed within little flower wheel, be provided with detachable cross bar between described two little flower wheels, described cross bar is provided with panel computer erecting frame.
4. a kind of portable remote according to claim 1 is ridden instead of walk and is followed robot, it is characterized in that: described car body is provided with the resilient rubbber cushion of middle with hole, and described upper cover is arranged on car body by spring and screw and resilient rubbber cushion.
5. a kind of portable remote according to claim 1 is ridden instead of walk and is followed robot, it is characterized in that: described car body is provided with upper cover, cover on described and be provided with removable flexible non-slip mat, removable flexible non-slip mat is covered upper by protruding jiont treatment.
6. ride instead of walk according to the arbitrary described a kind of portable remote of Claims 1 to 5 and follow robot, it is characterized in that: the rear of described car body is provided with USB port and charging inlet.
7. ride instead of walk according to the arbitrary described a kind of portable remote of Claims 1 to 5 and follow robot, it is characterized in that: the front end of described upper cover is provided with handle.
8. ride instead of walk according to the arbitrary described a kind of portable remote of Claims 1 to 5 and follow robot, it is characterized in that: forward and backward camera and car body adjustable angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520755133.XU CN205203161U (en) | 2015-09-28 | 2015-09-28 | Portable remote control is ridden instead of walk and is followed robot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520755133.XU CN205203161U (en) | 2015-09-28 | 2015-09-28 | Portable remote control is ridden instead of walk and is followed robot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205203161U true CN205203161U (en) | 2016-05-04 |
Family
ID=55840893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520755133.XU Active CN205203161U (en) | 2015-09-28 | 2015-09-28 | Portable remote control is ridden instead of walk and is followed robot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205203161U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216887A (en) * | 2015-09-28 | 2016-01-06 | 苑雪山 | A kind of portable remote is ridden instead of walk and is followed robot |
| CN106314577A (en) * | 2016-08-23 | 2017-01-11 | 西安科技大学 | Autonomous obstacle surmounting and avoiding walking control method for six-track and four-swing-arm rescue robot |
| CN110196559A (en) * | 2018-02-27 | 2019-09-03 | 深圳市奕博科技有限公司 | Body-sensing scooter and its driving method, terminal device and computer-readable medium |
| CN110720721A (en) * | 2019-09-30 | 2020-01-24 | 西安工程大学 | Semi-hidden crawler-type speed-adjustable automatic stair-climbing luggage case and control method thereof |
| CN111055673A (en) * | 2019-12-30 | 2020-04-24 | 北京晶品特装科技有限责任公司 | Lightweight driving device for robot platform |
| CN113954980A (en) * | 2021-11-05 | 2022-01-21 | 中国科学技术大学 | Multifunctional push plate with variable angle |
-
2015
- 2015-09-28 CN CN201520755133.XU patent/CN205203161U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216887A (en) * | 2015-09-28 | 2016-01-06 | 苑雪山 | A kind of portable remote is ridden instead of walk and is followed robot |
| CN106314577A (en) * | 2016-08-23 | 2017-01-11 | 西安科技大学 | Autonomous obstacle surmounting and avoiding walking control method for six-track and four-swing-arm rescue robot |
| CN110196559A (en) * | 2018-02-27 | 2019-09-03 | 深圳市奕博科技有限公司 | Body-sensing scooter and its driving method, terminal device and computer-readable medium |
| CN110720721A (en) * | 2019-09-30 | 2020-01-24 | 西安工程大学 | Semi-hidden crawler-type speed-adjustable automatic stair-climbing luggage case and control method thereof |
| CN110720721B (en) * | 2019-09-30 | 2021-06-15 | 西安工程大学 | Semi-hidden crawler-type speed-adjustable automatic stair-climbing luggage case and control method thereof |
| CN111055673A (en) * | 2019-12-30 | 2020-04-24 | 北京晶品特装科技有限责任公司 | Lightweight driving device for robot platform |
| CN113954980A (en) * | 2021-11-05 | 2022-01-21 | 中国科学技术大学 | Multifunctional push plate with variable angle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105216887A (en) | A kind of portable remote is ridden instead of walk and is followed robot | |
| CN205203161U (en) | Portable remote control is ridden instead of walk and is followed robot | |
| CN203268242U (en) | Intelligent balance car | |
| USRE49608E1 (en) | Two-wheel self-balancing vehicle with independently movable foot placement sections | |
| CN106627895B (en) | Human-computer interaction somatosensory vehicle and control method and device thereof | |
| CN203268232U (en) | Balance control device of intelligent balance car and intelligent balance car | |
| US10926826B2 (en) | Portable electric vehicle and method for controlling drive thereof | |
| CN203186511U (en) | Segway without handle | |
| CN104955720A (en) | Electric-powered self-balancing unicycle | |
| CN202879694U (en) | Single wheel self-balancing electric vehicle | |
| WO1998046474A2 (en) | Portable scooter | |
| CN101920728A (en) | Small portable automatic gravity center control vehicle | |
| CN205931066U (en) | Handrail can be dismantled, folding four -wheel electric skate board | |
| CN103754301A (en) | Self-balancing two-wheeled walking car | |
| CN201901016U (en) | Self-balancing two-wheel vehicle | |
| CN214356465U (en) | Single-wheel electric balance car | |
| CN107472419A (en) | A kind of method for adjusting gravity center of balance car | |
| CN204527459U (en) | The self-balancing wheelbarrow that a kind of center of gravity regulates automatically | |
| CN203854799U (en) | Two-wheeled self-steering self-balancing electric car | |
| KR100407581B1 (en) | Unmanned Electric Bicycle using a Gyro | |
| CN105857471A (en) | Four-wheeled electric skateboard scooter | |
| CN205469469U (en) | The wheel connection mechanism of electrodynamic balance car | |
| CN208335013U (en) | A kind of robot chassis | |
| CN102320342A (en) | Electric remote control wheelbarrow | |
| CN205345238U (en) | Novel portable electric car |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |