CN104176176A - Electric vehicle with pull rod luggage - Google Patents

Abstract

The invention aims to provide a portable tool for riding instead of walk. The portable tool solves the problem of the last one kilometer of green travel. The invention relates to an electric vehicle with a pull rod luggage. The patent scheme solves the problems that previously various short-distance vehicles for riding instead of walk are difficult to carry with and store well. The technical scheme adopted in order to realize the purpose of the invention is that the electric vehicle with the pull rod luggage comprises a pull rod system and a vehicle frame system. The vehicle frame system comprises a chassis for bearing goods. A pedal system is mounted on the chassis. When the electric vehicle with the pull rod luggage is used as a luggage, the axial directions of front wheels and rear wheels are parallel to the front-and-back direction of the chassis; when the electric vehicle is used as a trolley for riding instead of walk, the axial directions of the front wheels and the rear wheels are vertical to the front-and-back direction of the chassis.

Description

An electric trolley car

technical field

The invention belongs to the green vehicle.

Background technique

With the increase of urban traffic congestion and urban pollution, green travel by public transportation has become a way of travel for citizens advocated and vigorously promoted by governments at all levels. constraints. In addition to the urban public transportation network promoted by the government, the most difficult problem for green travel is the last distance (about one kilometer on average) between the public transportation station/subway station and the departure point or destination, which is what we usually say The last mile of green travel. At present, there has been no real and effective solution to this problem, so it is often because of the last mile that many people finally choose to travel by car.

Contents of the invention

The purpose of the invention is to provide a portable means of transportation for the last mile of green travel. The utility model relates to an electric trolley car which can be used for short-distance transportation. This patented solution well solves the problems of carrying and storage of vehicles that were difficult to solve in the past by various short-distance scooter.

The technical solution adopted to realize the object of the present invention is as follows, an electric vehicle with trolley luggage, including a trolley system and a frame system. The frame system includes a chassis. The tie rod system is mounted on the chassis. The tie rod system includes a front tie rod, a rear tie rod, a front wheel and a rear wheel. The front tie rod is installed at the front end of the chassis. The rear pull rod is installed at the rear end of the chassis. The front wheel is installed at the lower end of the front tie rod. The rear wheel is installed at the lower end of the rear pull rod. When the trolley case electric vehicle is used as a trolley case, the axial direction of the rear wheel is parallel to the front-rear direction of the chassis. The axial direction of the front wheel is parallel to the front and rear direction of the chassis. When the trolley case electric vehicle is used as a trolley, the axial direction of the rear wheel is perpendicular to the front-to-back direction of the chassis, and the axial direction of the front wheel is perpendicular to the front-to-back direction of the chassis, and serves as the steering wheel of the trolley.

Further, the upper surface of the chassis carries luggage or is connected with the lower end of the luggage bag.

Further, a pedal system is installed on the chassis. The middle part of the chassis is a hollow cuboid. The pedal system includes two pedals I and II hinged on the left and right sides of the chassis. When the trolley case electric vehicle is used as a trolley case, the upper surface of the pedal I is parallel to the side wall of the chassis, and the upper surface of the pedal II is parallel to the side wall of the chassis. When the trolley electric vehicle is used as a trolley, the upper surface of the pedal I is perpendicular to the side wall of the chassis, and the upper surface of the pedal II is perpendicular to the side wall of the chassis.

Further, the middle part of the chassis is a hollow cuboid. The pedal system includes a cuboid pedal III installed on the lower surface of the chassis. The middle part of the pedal III is connected with the lower surface of the chassis through a rotating shaft. When the electric suitcase is used as a suitcase, the pedal III is retracted, and the length direction of the pedal III is parallel to the length direction of the chassis. When the electric suitcase is used as a trolley, the pedal III is released, and the length direction of the pedal III is perpendicular to the length direction of the chassis. the

Further, the front tie rod includes: a fixed handlebar, a movable handlebar, a connecting rod, a front fork stem and a front fork. The fixed handlebar is at the upper end of the connecting rod. The front fork vertical pipe is at the lower end of the connecting rod. The front fork is at the lower end of the front fork vertical tube. A front wheel is installed in the middle of the front fork. The movable handlebar is at the upper end of the connecting rod, and together with the fixed handlebar, it forms a handlebar or a trolley case handle.

The rear tie rod includes: a fixed rod, a telescopic rod, a rear fork standpipe and a rear fork. A fixed rod is installed on the upper end of the telescopic rod. The rear fork vertical pipe is arranged at the lower end of the telescopic rod. The rear fork is at the lower end of the vertical pipe of the rear fork. The rear wheel is installed in the middle of the rear fork.

When the trolley case electric vehicle is used as a trolley case, the telescopic rod of the rear pull rod is pulled out upwards and is at the same height as the front pull rod. When the electric trolley car is used as a trolley, the telescopic rod of the rear pull rod is retracted. The support feet are installed on the side of the chassis.

Further, the fixed rod is composed of a rod column at the lower end and a rod with a square or dumbbell-shaped section at the upper end.

Further, the frame system also includes a head pipe and a tail pipe. The head pipe is at the front end of the chassis. The tailpipe is at the rear end of the chassis. The head tube has embedded bearings. The tailpipe of the vehicle frame system is socketed together with the rear fork vertical pipe of the rear tie rod.

Further, a battery is installed in the chassis. There are bags on the chassis. A hub motor is installed in the rear wheel.

Further, the front fork of the front tie rod and the rear fork of the rear tie rod are bent at a certain angle to the outside of the vehicle body.

Further, when changing the trolley case electric car in the trolley state into the trolley case state, the following steps are included:

1) Rotate the front tie rod until the front wheel axis is parallel to the front and rear direction of the chassis.

2) The telescopic rod of the rear tie rod is elongated, and the rear tie rod is fixed after rotating 90 degrees so that the rear wheel axis is parallel to the front and rear direction of the chassis, and the fixed handlebar of the front tie rod is fixed on one side of the fixed rod of the rear tie rod.

3) The movable handlebar of the front tie rod is rotated 180 degrees and fixed on the other side of the fixed rod of the rear tie rod.

4) Put away pedal Ⅰ and pedal Ⅱ.

When changing the electric trolley car in the state of the trolley case to the state of the trolley, the following steps are included:

1) The movable handlebar of the front tie rod is taken out from one side of the fixed rod of the rear tie rod, rotated 180 degrees, fixed and parallel to the fixed handlebar.

2) The fixed handlebar of the front tie rod is taken out from the other side of the fixed rod of the rear tie rod. Rotate the fixed handlebar so that the front wheel axis is perpendicular to the front and rear directions of the chassis.

3) After the rear tie rod is rotated 90 degrees, it is fixed so that the rear wheel axis is perpendicular to the front and rear direction of the chassis, and the telescopic rod of the rear tie rod is retracted.

4) Put down pedal Ⅰ and pedal Ⅱ.

Further, when changing the trolley case electric car in the trolley state into the trolley case state, the following steps are included:

1) Rotate the front tie rod until the front wheel axis is parallel to the front and rear direction of the chassis.

2) The telescopic rod of the rear tie rod is elongated, and the rear tie rod is fixed after rotating 90 degrees so that the rear wheel axis is parallel to the front and rear directions of the chassis, and the fixed handlebar of the front tie rod is fixed on the side of the fixed rod of the rear tie rod.

3) The movable handlebar of the front tie rod is rotated 180 degrees and fixed on the other side of the fixed rod of the rear tie rod.

4) Pedal III is rotated and retracted so that the length direction of the pedal is parallel to the length direction of the chassis.

When changing the electric trolley car in the state of the trolley case to the state of the trolley, the following steps are included:

1) The movable handlebar of the front tie rod is taken out from one side of the fixed rod of the rear tie rod, rotated 180 degrees, fixed and parallel to the fixed handlebar.

2) The fixed handlebar of the front tie rod is taken out from the other side of the fixed rod of the rear tie rod. Rotate the fixed handlebar so that the front wheel axis is perpendicular to the front and rear directions of the chassis.

3) After the rear tie rod is rotated 90 degrees, it is fixed so that the rear wheel axis is perpendicular to the front and rear direction of the chassis, and the telescopic rod of the rear tie rod is retracted.

4) Pedal III is rotated and released so that the length direction of the pedal is perpendicular to the length direction of the chassis.

The invention has the characteristics of small size, convenient use, convenient portability, fashion and the like. It realizes short-distance commuting from subway stations/bus stations to office buildings and other destinations, and improves travel, especially the efficiency of office workers commuting to and from get off work.

Description of drawings

Figure 1 is a front view of the trolley state of the trolley case electric vehicle;

Fig. 2 is the rear view of the trolley state of the trolley case electric vehicle;

Fig. 3 is front pull rod;

Figure 4 is the chassis;

Figure 5 is the rear pull rod;

Figure 6 is the handle fixing rod of the rear pull rod;

Fig. 7 is the state of the trolley case of the trolley case electric vehicle;

Fig. 8 is the state of the trolley with pedal III trolley luggage electric vehicle;

Fig. 9 is the state of the trolley case with pedal III trolley case electric vehicle;

Fig. 10 is the trolley state of the trolley luggage electric vehicle with the front fork of the front tie rod and the rear fork of the rear tie rod bent to the outside of the car body at a certain angle;

Figure 11 shows the state of the trolley case of the trolley case electric vehicle with the front fork of the front tie rod and the rear fork of the rear tie rod bent at a certain angle to the outside of the car body;

Figure 12 is the battery of the trolley case electric vehicle.

In the figure: 1000-front tie rod, 1010-fixed handlebar, 1020-movable handlebar, 1030-connecting rod, 1040-standpipe, 1050-front fork, 1060-front wheel, 2000-frame system, 2010-chassis, 2020-head pipe, 2030-tail pipe, 2040-pedal Ⅰ, 2050-pedal Ⅱ, 2060-pedal Ⅲ, 2070-support foot, 2080-battery, 3000 rear rod, 3010-handle fixing rod, 3020- Telescopic rod, 3030-rear fork stem, 3040-rear fork, 3050-rear wheel, 4000-luggage.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but it should not be understood that the scope of the subject matter of the present invention is limited to the following embodiments. Without departing from the above-mentioned technical ideas of the present invention, various replacements and changes made according to common technical knowledge and conventional means in this field shall be included in the protection scope of the present invention.

Example 1:

An electric vehicle with trolley luggage, including a trolley system and a frame system 2000. The frame system 2000 includes a load-carrying chassis 2010 . The upper surface of the chassis 2010 carries luggage or is connected with the lower end of the luggage bag. The user can step on the chassis 2010, or a pedal system is additionally installed on the chassis 2010 for the user to step on. The tie rod system is installed on the chassis 2010 . The tie rod system includes a front tie rod 1000 , a rear tie rod 3000 , a front wheel 1060 and a rear wheel 3050 . The front tie rod 1000 is installed on the front end of the chassis 2010 . The rear tie rod 3000 is installed on the rear end of the chassis 2010 . The front wheel 1060 is installed on the lower end of the front tie rod 1000 , and the axial direction of the front wheel 1060 rotates together with the front tie rod 1000 . The rear wheel 3050 is installed on the lower end of the rear pull rod 3000, and the axial direction of the rear wheel 3050 rotates together with the pull rod 3000. When the trolley case electric vehicle is used as a trolley case, the axial direction of the rear wheel 3050 is parallel to the front-rear direction of the chassis 2010 . The axial direction of the front wheel 1060 is parallel to the front-to-back direction of the chassis 2010 . When the trolley electric vehicle is used as a trolley, the axial direction of the rear wheel 3050 is perpendicular to the front and rear directions of the chassis 2010 . The axial direction of the front wheel 1060 is perpendicular to the front and rear direction of the chassis 2010, and serves as the steering wheel of the trolley to control the forward direction of the trolley. It is worth noting that since the rear wheel 3050 can be rotated and fixed by 90°, the present invention has the functions of a pedal electric vehicle and a trolley case. It can be used as a means of transportation to reach the destination smoothly.

Example 2:

The main structure of this embodiment is the same as that of Embodiment 1, and a pedal system is installed on the chassis 2010 (side). The middle part of the chassis 2010 is a hollow cuboid. The pedal system includes two pedals I 2040 and pedals II 2050 hinged on the left and right sides of the chassis 2010 . When the trolley case is used as a trolley case, the upper surface of the pedal I 2040 is parallel to the side wall of the chassis 2010 , and the upper surface of the pedal II 2050 is parallel to the side wall of the chassis 2010 . When the electric trolley car is used as a trolley, the upper surface of the pedal I 2040 is perpendicular to the side wall of the chassis 2010 , and the upper surface of the pedal II 2050 is perpendicular to the side wall of the chassis 2010 .

Example 3:

The main structure of this embodiment is the same as that of Embodiment 1, and a pedal system is installed on the chassis 2010 (bottom surface). The middle part of the chassis 2010 is a hollow cuboid. The pedal system includes a cuboid pedal III 2060 installed on the lower surface of the chassis 2010 . The middle part of the pedal III 2060 is connected with the lower surface of the chassis 2010 through a rotating shaft. When the trolley electric vehicle is used as a suitcase, the pedal III 2060 is retracted, and the length direction of the pedal III 2060 is parallel to the length direction of the chassis 2010 . When the trolley electric vehicle is used as a trolley, the pedal III 2060 is released, and the length direction of the pedal III 2060 is perpendicular to the length direction of the chassis 2010 .

Example 4:

    The main structure of this embodiment is the same as that of Embodiment 1. The front tie rod 1000 includes: a fixed handlebar 1010 , a movable handlebar 1020 , a connecting rod 1030 , a front fork stem 1040 and a front fork 1050 . The fixed handlebar 1010 is at the upper end of the connecting rod 1030 . The front fork vertical tube 1040 is at the lower end of the connecting rod 1030 . The front fork 1050 is at the lower end of the front fork stem 1040 . A front wheel 1060 is installed in the middle of the front fork 1050 . The movable handlebar 1020 is at the upper end of the connecting rod 1030, and the connecting rod 1030 can be rotated as an axis, and together with the fixed handlebar 1010, it forms a handlebar or a handle of a trolley bag. When the movable handlebar 1020 is deployed relative to the fixed handlebar 1010 and the angle between the two is the largest, it is used as a handlebar. When the movable handlebar 1020 is retracted relative to the fixed handlebar 1010 and the angle between the two is the smallest, it is used as a pull bar for a suitcase.

The rear tie rod 3000 includes: a fixed rod 3010, a telescopic rod 3020, a rear fork standpipe 3030 and a rear fork 3040. A fixed rod 3010 is installed on the upper end of the telescopic rod 3020 . The rear fork standpipe 3030 is arranged at the lower end of the telescopic rod 3020 . The rear fork 3040 is at the lower end of the rear fork vertical tube 3030 . The rear wheel 3050 is installed in the middle of the rear fork 3040 .

Preferably, the front tie rod 1000 is also a telescopic rod like the rear tie rod 3000, which can be adjusted according to the user's height.

When the trolley case electric vehicle is used as a trolley case, the telescopic rod 3020 of the rear tie rod 3000 is pulled out, and is at the same height as the front tie rod 1000. When the electric trolley car is used as a trolley, the telescopic rod 3020 of the rear pull rod 3000 is retracted. Support feet 2070 are installed on the side of the chassis 2010 . Support feet 2070 are hinged on the side of the chassis.

Example 5:

The main structure of this embodiment is the same as that described in Embodiment 1, 2 or 4. The fixed rod 3010 is composed of a rod column at the lower end and a rod with a square or dumbbell-shaped section at the upper end. The left and right sides of the bar of the dumbbell-shaped section are circular arcs, and the upper and lower sides are straight lines parallel to each other. When the trolley case electric vehicle is used as a trolley, the movable handlebar 1020 and the fixed handlebar 1010 are respectively fixed in the left and right circular arc grooves of the bar of the dumbbell-shaped section.

In this implementation, the frame system 2000 further includes a head pipe 2020 and a tail pipe 2030 . The head pipe 2020 is at the front end of the chassis 2010 . The tailpipe 2030 is at the rear end of the chassis 2010 . The head pipe 2020 is embedded with bearings. The bearing outer ring is installed in the head pipe 2020 , and the bearing inner ring is installed on the front fork stem tube 1040 . The tail tube 2030 of the frame system 2000 is socketed with the rear fork stem tube 3030 of the rear tie rod 3000 .

In this embodiment, a battery 2080 is installed in the chassis 2010 . On the chassis 2010 there are bags 4000. The case and bag 4000 and the chassis 2010 are detachable and fixed. The Luggage 4000 can be fitted with a detachable seat. Hub motors are installed in the rear wheels 3050 or hub motors are installed in the front wheels 1060 and the rear wheels 3050 .

Embodiment 6:

The main structure of this embodiment is the same as that of Embodiment 1, 2, 4 or 5. The front fork 1050 of the front tie rod 1000 and the rear fork 3040 of the rear tie rod 3000 are bent at a certain angle to the outside of the vehicle body to enhance stability.

Embodiment 7:

According to Embodiment 1, 2, 4 or 5, this embodiment provides a method for using a trolley case electric vehicle. When changing the trolley case electric vehicle in the trolley state into the trolley case state, the following steps are included:

1) The front tie rod 1000 is rotated until the axis of the front wheel 1060 is parallel to the front and rear directions of the chassis 2010.

2) The telescopic rod 3020 of the rear tie rod 3000 is elongated, and the rear tie rod 3000 is rotated 90 degrees and then fixed, so that the axial direction of the rear wheel 3050 is parallel to the front and rear direction of the chassis 2010, and the fixed handlebar 1010 of the front tie rod 1000 is fixed on the fixed side of the rear tie rod 3000 One side of the rod 3010.

3) The movable handlebar 1020 of the front tie rod 1000 is fixed on the other side of the fixed rod 3010 of the rear tie rod 3000 after being rotated 180 degrees.

4) Put away the pedal Ⅰ 2040 and the pedal Ⅱ 2050.

It is worth noting that, when the present invention is in the state of a trolley case, the heights of the front tie rod 1000 and the rear tie rod 3000 can be adjusted to suit the height of the dragger (user). In addition, when there is no need to drag the trolley bag (that is, when the device of the present invention is placed for a long time), the supporting legs 2070 can be lowered, and the front pull rod 1000 and the rear pull rod 3000 can be shortened as much as possible to reduce the occupied space.

When changing the electric trolley car in the state of the trolley case to the state of the trolley, the following steps are included:

1) The movable handlebar 1020 of the front tie rod 1000 is taken out from one side of the fixed rod 3010 of the rear tie rod 3000, rotated 180 degrees, fixed and parallel to the fixed handlebar 1010.

2) The fixed handlebar 1010 of the front tie rod 1000 is taken out from the other side of the fixed rod 3010 of the rear tie rod 3000 . Turn and fix the handlebar 1010 so that the front wheel axis is perpendicular to the front and rear directions of the chassis 2010 .

3) The rear tie rod 3000 is rotated 90 degrees and then fixed, so that the axial direction of the rear wheel 3050 is perpendicular to the front and back direction of the chassis 2010, and the telescopic rod 3020 of the rear tie rod 3000 is retracted.

4) Put down pedal Ⅰ 2040 and pedal Ⅱ 2050.

Embodiment 8:

According to Embodiment 1, 3, 4 or 5, this embodiment provides a method for using a trolley case electric vehicle. When changing the trolley case electric vehicle in the trolley state into the trolley case state, the following steps are included:

1) The front tie rod 1000 is rotated until the axial direction of the front wheel 1060 is parallel to the front and rear direction of the chassis 2010 .

2) The telescopic rod 3020 of the rear tie rod 3000 is elongated, and the rear tie rod 3000 is rotated 90 degrees and then fixed, so that the axial direction of the rear wheel 3050 is parallel to the front and rear direction of the chassis 2010, and the fixed handlebar 1010 of the front tie rod 1000 is fixed on the fixed side of the rear tie rod 3000 Rod 3010 side.

3) The movable handlebar 1020 of the front tie rod 1000 is fixed on the other side of the fixed rod 3010 of the rear tie rod 3000 after being rotated 180 degrees.

4) The pedal III 2060 is rotated and retracted so that the length direction of the pedal is parallel to the length direction of the chassis 2010 .

When changing the electric trolley car in the state of the trolley case to the state of the trolley, the following steps are included:

1) The movable handlebar 1020 of the front tie rod 1000 is taken out from one side of the fixed rod 3010 of the rear tie rod 3000, rotated 180 degrees, fixed and parallel to the fixed handlebar 1010.

2) The fixed handlebar 1010 of the front tie rod 1000 is taken out from the other side of the fixed rod 3010 of the rear tie rod 3000 . Turn and fix the handlebar 1010 so that the front wheel axis is perpendicular to the front and rear directions of the chassis 2010 .

3) The rear tie rod 3000 is rotated 90 degrees and then fixed, so that the axial direction of the rear wheel 3050 is perpendicular to the front and back direction of the chassis 2010, and the telescopic rod 3020 of the rear tie rod 3000 is retracted.

4) The pedal III 2060 is rotated and released so that the length direction of the pedal is perpendicular to the length direction of the chassis 2010 .

Claims (10)

1. a trolley luggage battery-driven car, is characterized in that: comprise tie system and frame system and frame (2000);

Described frame system and frame (2000) comprises chassis (2010); Described tie system is arranged on chassis (2010); Described tie system comprises front tension bar (1000), back stay (3000), front-wheel (1060) and trailing wheel (3050); Described front tension bar (1000) is arranged on chassis (2010) front end; Described back stay (3000) is arranged on rear end, chassis (2010); Described front-wheel (1060) is arranged on front tension bar (1000) lower end; Described trailing wheel (3050) is arranged on back stay (3000) lower end; When using as trolley luggage when trolley luggage battery-driven car, described trailing wheel (3050) axially parallel with chassis (2010) fore-and-aft direction; Described front-wheel (1060) axially parallel with chassis (2010) fore-and-aft direction; When trolley luggage battery-driven car is used as dolly, described trailing wheel (3050) axially vertical with chassis (2010) fore-and-aft direction; Described front-wheel (1060) axially vertical with chassis (2010) fore-and-aft direction, and as dolly wheel flutter.

2. a kind of trolley luggage battery-driven car according to claim 1, is characterized in that: the upper surface of described chassis (2010) carries luggage or is connected with the lower end of luggage case and bag.

3. a kind of trolley luggage battery-driven car according to claim 1, is characterized in that: described chassis (2010) upper pedal system of installing; Middle part, described chassis (2010) is hollow cuboid; Described pedal system comprises two the stretcher I (2040) and the stretcher II (2050) that are hinged on the left and right sides, chassis (2010); When trolley luggage battery-driven car is used as trolley luggage, described stretcher I (2040) upper surface and chassis (2010) parallel sidewalls, described stretcher II (2050) upper surface and chassis (2010) parallel sidewalls; When trolley luggage battery-driven car is used as dolly, described stretcher I (2040) upper surface is vertical with chassis (2010) sidewall, and described stretcher II (2050) upper surface is vertical with chassis (2010) sidewall.

4. a kind of trolley luggage battery-driven car according to claim 1, is characterized in that: described chassis (2010) upper pedal system of installing; Middle part, described chassis (2010) is hollow cuboid; Described pedal system comprises a cuboid pedal III (2060) that is arranged on chassis (2010) lower surface; Described pedal III (2060) middle part is connected with the lower surface of chassis (2010) by rotating shaft; When trolley luggage battery-driven car is used as suitcase, described pedal III (2060) is regained, and the length direction of pedal III (2060) is also parallel with chassis (2010) length direction; When trolley luggage battery-driven car is used as dolly, described pedal III (2060) is emitted, and the length direction of pedal III (2060) is also vertical with chassis (2010) length direction.

5. according to a kind of trolley luggage battery-driven car described in claim 1,3 or 4, it is characterized in that:

Described front tension bar (1000) comprising: fixedly handlebar (1010), moveable cart are (1020), pipe link (1030), standpipe of front fork (1040) and front fork (1050); Described fixedly handlebar (1010) is in pipe link (1030) upper end; Described standpipe of front fork (1040) is in pipe link (1030) lower end; Described front fork (1050) is in standpipe of front fork (1040) lower end; Front-wheel (1060) is installed in the middle of described front fork (1050); Described moveable cart in pipe link (1030) upper end, together forms handlebar or trolley luggage handgrip with fixing handlebar (1010) (1020);

Described back stay (3000) comprising: handle-fixing (3010), expansion link (3020), back vent vertical tube (3030) and back vent (3040); Described expansion link (3020) upper end is provided with handle-fixing (3010); There is back vent vertical tube (3030) described expansion link (3020) lower end; Described back vent (3040) is in back vent vertical tube (3030) lower end; Described trailing wheel (3050) is arranged in the middle of back vent (3040);

When trolley luggage battery-driven car is used as trolley luggage, the expansion link (3020) of described back stay (3000) is upwards pulled out, and highly consistent with front tension bar (1000); When trolley luggage battery-driven car is used as dolly, the expansion link (3020) of described back stay (3000) is retracted; Feet (2070) is installed in side, chassis (2010).

6. a kind of trolley luggage battery-driven car according to claim 5, is characterized in that: the bar that described handle-fixing (3010) is square or dumb-bell shape by the roofbolt of lower end and the cross section of upper end forms.

7. a kind of trolley luggage battery-driven car according to claim 5, is characterized in that: described frame system and frame (2000) also comprises head tube (2020) and tail pipe (2030); Described head tube (2020) is (2010) front end on chassis; Described tail pipe (2030) is (2010) rear end on chassis; The embedded bearing of described head tube (2020); The tail pipe (2030) of described frame system and frame (2000) connects together with the back vent vertical tube (3030) of back stay (3000);

Battery (2080) is installed in chassis (2010); On chassis (2010), there are case and bag (4000); Described trailing wheel is provided with wheel hub motor in (3050).

8. a kind of trolley luggage battery-driven car according to claim 5, is characterized in that: the front fork (1050) of described front tension bar (1000) and the back vent (3040) of back stay (3000) are to car body outside curve certain angle.

9. the using method of a kind of trolley luggage battery-driven car as described in claim 1,2,3,5,6,7 or 8, is characterized in that:

When the trolley luggage battery-driven car of dolly state is become to trolley luggage state, comprise the steps:

1) front tension bar (1000) rotates to front-wheel (1060) axially parallel with chassis (2010) fore-and-aft direction;

2) expansion link (3020) of back stay (3000) elongates, fixing after back stay (3000) 90-degree rotation, make trailing wheel (3050) axially parallel with chassis (2010) fore-and-aft direction, and the fixedly handlebar (1010) of front tension bar (1000) is fixed on a side of the handle-fixing (3010) of back stay (3000);

3) moveable cart of front tension bar (1000) is the opposite side that is fixed on the handle-fixing (3010) of back stay (3000) after (1020) Rotate 180 degree;

4) pack up stretcher I (2040) and stretcher II (2050);

When the trolley luggage battery-driven car of trolley luggage state is become to dolly state, comprise the steps:

1) moveable cart of front tension bar (1000) goes out (1020) from a side-draw of the handle-fixing (3010) of back stay (3000), fixing and with fixedly handlebar (1010) is parallel after Rotate 180 degree;

2) the fixedly handlebar (1010) of front tension bar (1000) takes out from the opposite side of the handle-fixing (3010) of back stay (3000); Rotating fixedly handlebar (1010) makes front wheel spindle to vertical with chassis (2010) fore-and-aft direction;

3) fixing after back stay (3000) 90-degree rotation, make trailing wheel (3050) axially vertical with chassis (2010) fore-and-aft direction, the expansion link (3020) of back stay (3000) is retracted;

4) put down stretcher I (2040) and stretcher II (2050).

10. the using method of a kind of trolley luggage battery-driven car as described in claim 1,2,4,5,6,7 or 8, is characterized in that:

When the trolley luggage battery-driven car of dolly state is become to trolley luggage state, comprise the steps:

1) front tension bar (1000) rotates to front-wheel (1060) axially parallel with chassis (2010) fore-and-aft direction;

2) expansion link (3020) of back stay (3000) elongates, fixing after back stay (3000) 90-degree rotation, make trailing wheel (3050) axially parallel with chassis (2010) fore-and-aft direction, and the fixedly handlebar (1010) of front tension bar (1000) is fixed on handle-fixing (3010) one sides of back stay (3000);

3) moveable cart of front tension bar (1000) is handle-fixing (3010) opposite side that is fixed on back stay (3000) after (1020) Rotate 180 degree;

4) pedal III (2060) rotation is regained, and makes tread length direction parallel with chassis (2010) length direction;

When the trolley luggage battery-driven car of trolley luggage state is become to dolly state, comprise the steps:

1) moveable cart of front tension bar (1000) goes out (1020) from a side-draw of the handle-fixing (3010) of back stay (3000), fixing and with fixedly handlebar (1010) is parallel after Rotate 180 degree;

2) the fixedly handlebar (1010) of front tension bar (1000) takes out from the opposite side of the handle-fixing (3010) of back stay (3000); Rotating fixedly handlebar (1010) makes front wheel spindle to vertical with chassis (2010) fore-and-aft direction;

3) fixing after back stay (3000) 90-degree rotation, make trailing wheel (3050) axially vertical with chassis (2010) fore-and-aft direction, the expansion link (3020) of back stay (3000) is retracted;

4) pedal III (2060) rotation is emitted, and makes tread length direction vertical with chassis (2010) length direction.