CN220076457U - Electrically driven trailer - Google Patents

Abstract

The utility model discloses an electric drive trailer which comprises a vehicle body, a driving unit and a power supply unit, wherein the power supply unit is suitable for supplying power to the driving unit, the vehicle body comprises a frame, a plurality of wheels arranged at the bottom of the frame and an operating rod connected with the frame, the driving unit is suitable for driving at least one wheel to rotate, the operating rod comprises a handle part and an extension rod, one end of the extension rod is connected with the frame, and the other end of the extension rod is rotatably connected with the handle part, so that the handle part is suitable for rotating by taking the extending direction of the extension rod as a rotating shaft. When the user is left and right, the unlocking switch can be always positioned at the thumb side by rotating the operating rod, so that one hand is used for controlling the stopping and starting of the electric drive trailer, the other hand of the user is liberated, the other hand can be used for making a call or looking at a map for navigation and other operations when the user uses the electric drive trailer, and the practicability and convenience of the electric drive trailer are improved.

Description

Electrically driven trailer

Technical Field

The utility model relates to the technical field of carts, in particular to an electrically driven trailer.

Background

The trailer is widely applied to production and life, is convenient to operate, light in dead weight and quite convenient to transfer and transport objects in short distance, is pushed and pulled manually in general for the original trailer, and is quite laborious to push and pull heavy objects or steep slopes by means of two hands, so that the electrically driven trailer is in the field of view of people, and can effectively reduce the burden of workers in carrying the objects and improve the transport efficiency.

Because the frequency of mobile electronic devices such as mobile phones used by modern people is extremely high, users can usually use the electronic devices to perform map navigation, call receiving and other operations in the transportation process, at this time, the users are required to operate the mobile phones and the electric drive trailers simultaneously, and when the existing single-hand operation is performed, the users are required to assign right hands or left hands to correspondingly control the starting switch on the handle of the trailer, so that the starting switch on the handle can not be controlled by the left hands and the right hands simultaneously, and the using experience of the users is greatly influenced.

Disclosure of Invention

In order to overcome the deficiencies of the prior art, it is an object of the present utility model to provide an electrically driven trailer that is operable with one hand.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an electric drive trailer, includes automobile body, drive unit and power supply unit, power supply unit is suitable for to the power supply of drive unit, the automobile body includes the frame, sets up a plurality of wheels of frame bottom and with the action bars that the frame is connected, drive unit is suitable for the drive at least one the wheel rotates, its characterized in that: the operation rod comprises a handle part and an extension rod, one end of the extension rod is connected with the frame, and the other end of the extension rod is rotatably connected with the handle part, so that the handle part is suitable for rotating by taking the extension direction of the extension rod as a rotating shaft.

Preferably, the handle portion is provided with a plurality of switches for controlling the operation of the drive unit, at least one of the switches being asymmetric with respect to the axis of rotation of the handle portion.

As another preferred aspect, the handle portion has a symmetrical structure with respect to its rotation axis, and at least one of the switches is provided on one side of the rotation axis of the handle portion.

As an improvement, at least one of the switches is also symmetrical with respect to the rotation axis of the handle portion.

Preferably, the handle portion is provided with a start switch and an unlock switch, the start switch is electrically connected with the driving unit or the power supply unit, the unlock switch is used for locking or unlocking the start switch, so that when the unlock switch is operated, the start switch can be operated, and when the unlock switch is not operated, the start switch cannot be operated.

As another preferable aspect, the handle portion includes an annular handle, the start switch is disposed inside an upper end of the annular handle, the unlock switch is disposed outside an upper end of the annular handle, and the start switch is close to a middle portion of the annular handle, and the unlock switch is close to one side of the annular handle, so that when a user holds the annular handle with his or her hand, four fingers are adapted to be placed at the start switch, and a thumb is adapted to be placed at the unlock switch.

Still preferably, the handle portion further includes a speed regulating switch electrically connected to the driving unit for controlling a rotation speed of the driving unit, the speed regulating switch being disposed at an inner side of the ring-shaped handle opposite to the start switch, so that the speed regulating switch can be operated when the ring-shaped handle is held by a user's hand and the four fingers are extended.

Further, the extension rod includes extension rod body and a pair of connecting rod, the first end of extension rod body with handle portion rotates to be connected, a pair of the connecting rod divide to locate symmetrically the both sides of extension rod body, and each the first end of connecting rod is connected respectively the second end of extension rod body, each the second end of connecting rod is connected respectively the frame.

Further, the extension rod body is a telescopic rod, so that the length of the extension rod body is adjustable.

Further, the power supply unit comprises a battery compartment, the battery compartment is arranged on the vehicle body, the battery pack is detachably arranged in the battery compartment, a first electric connecting wire and a second electric connecting wire are arranged in the battery compartment, the first electric connecting wire is electrically connected with the battery compartment and the extension rod body, and the second electric connecting wire is electrically connected with the battery compartment and the driving unit; the outside of first electric connecting wire the outside of second electric connecting wire all overlaps and is equipped with the bellows.

Further, the frame includes front frame, back frame, underframe and a pair of side frame, a pair of side frame divide to be located the both sides of underframe, front frame set up in the front end of underframe, back frame set up in the rear end of underframe, power supply unit set up in on the front frame, drive unit sets up in being close to one side of back frame.

Further, the second electrical connection line is adapted to be arranged along the front frame and the bottom frame, and the second electrical connection line is located outside a section of the front frame and sleeved with a corrugated tube.

Compared with the prior art, the utility model has the beneficial effects that:

(1) Through setting up rotatable handle portion for when the user left and right sides hand carries out single-hand operation, can make the unlock switch be located the thumb side all the time through rotating the handle portion, make things convenient for the user left and right sides hand to carry out single-hand control, thereby realize stopping and the start of one hand control electric drive trailer, the other hand of liberation user makes the user when using electric drive trailer, and the other hand can carry out operations such as making a telephone call or seeing map navigation, improves electric drive trailer's practicality and convenience.

Drawings

Fig. 1 is a perspective view of an electrically driven trailer in accordance with the present utility model.

Fig. 2 is a front view of an electrically driven trailer in accordance with the present utility model.

Fig. 3 is an enlarged schematic view of fig. 1 at a in accordance with the present utility model.

Fig. 4 is an enlarged schematic view of the utility model at B in fig. 1.

Fig. 5 is an enlarged schematic view of fig. 1 at C in accordance with the present utility model.

In the figure: 1. an electrically driven trailer; 10. a vehicle body; 11. a frame; 111. a second connector; 112. a rotating block; 113. a front frame; 114. a rear frame; 115. a side frame; 116. a bottom frame; 12. a wheel; 121. a front wheel; 122. a rear wheel; 13. an operation lever; 131. a handle portion; 1311. unlocking the switch; 1312. starting a switch; 1313. a speed regulating switch; 132. an extension rod body; 133. a connecting rod; 134. a first connector; 135. a first mounting portion; 136. a second mounting portion; 20. a driving unit; 30. a power supply unit; 31. a battery compartment; 311. a first electrical connection line; 312. a second electrical connection line; 32. and a battery pack.

Detailed Description

The present utility model will be further described with reference to the following specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.

In the description of the present utility model, it should be noted that, for the azimuth words such as terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present utility model and simplifying the description, and it is not to be construed as limiting the specific scope of protection of the present utility model that the device or element referred to must have a specific azimuth configuration and operation.

It should be noted that the terms "first," "second," and the like in the description and in the claims are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

The terms "comprises" and "comprising," along with any variations thereof, in the description and claims, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

An electrically driven trailer 1 as shown in fig. 1-5 comprises a vehicle body 10, a driving unit 20 and a power supply unit 30, wherein the power supply unit 30 is used for supplying power to the driving unit 20, and the driving unit 20 is used for driving at least one wheel 12 to rotate, so that the vehicle body 10 can advance or retreat under the assistance of the driving unit 20.

The trailer that relies on the manpower to pull with the tradition changes electric drive into, and the user only needs the direction of advance of control trailer when using, labour saving and time saving, the transportation of long distance and heavy object that carries out that can be more convenient, the ground of accessible different slopes, runs into steep hillside and also can easily deal with, has improved the use convenience.

The vehicle body 10 includes a frame 11, wheels 12 and an operation lever 13, the frame 11 has a containing space for containing objects, the wheels 12 are disposed at the bottom of the frame 11, the operation lever 13 is disposed at one end of the frame 11, when a user uses the vehicle body, the objects are placed in the frame 11, and the driving unit 20 drives the wheels 12 to drive the frame 11 to move by pulling the operation lever 13, so as to achieve the object carrying purpose.

The operation lever 13 includes a handle portion 131 and an extension lever, one end of the extension lever is connected with the frame 11, the other end of the extension lever is rotatably connected with the handle portion 131, so that the handle portion 131 is suitable for rotating with an extension direction of the extension lever as a rotation axis, a plurality of switches for controlling the driving unit 20 are disposed on the handle portion 131, at least one switch is asymmetric with respect to the rotation axis of the handle portion 131, wherein the unlocking switch 1311 is disposed on one side of the handle portion 131, and the unlocking switch 1311 is used for locking or unlocking the starting switch 1312.

Wherein the handle portion 131 has a symmetrical structure with respect to its rotation axis, and at least one switch is provided at one side of the rotation axis of the handle portion 131. The symmetrical structure is convenient for handle portion 131 rotate round the rotation axis, also can be when single hand is controlled simultaneously, makes one of them switch rotate to the thumb side through rotatory handle portion 131, and the user of being convenient for can both guarantee that the switch on the handle can rotate to the thumb side when no matter what hand is used to carry out single hand operation to improve practicality and the convenience of its in-process of controlling, make the user all can freely control electric drive trailer 1 at arbitrary hand in actual operation in-process.

Wherein also at least one switch is symmetrical with respect to the rotational axis of the handle portion 131. Specifically, the handle portion 131 is provided with a start switch 1312 and an unlock switch 1311, the unlock switch 1311 is disposed at one side of a rotation shaft, the unlock switch 1311 is asymmetric with respect to the rotation shaft of the handle portion 131, the start switch 1312 is disposed at the inner side of the handle portion 131, and the start switch 1312 is symmetric with respect to the rotation shaft of the handle.

In some embodiments, the handle portion 131 is provided with a start switch 1312 and an unlock switch 1311, the start switch 1312 is electrically connected with the driving unit 20 or the power supply unit 30, the unlock switch 1311 is used for locking or unlocking the start switch 1312, so that when the unlock switch 1311 is operated, the start switch 1312 can be operated, and when the unlock switch 1311 is not operated, the start switch 1312 is not operable, the start switch 1312 is adapted to send a start-stop signal to the driving unit 20, so that the driving unit 20 is operated or stopped. In the actual operation process, the unlock switch 1311 needs to be started first, and only when the unlock switch 1311 is in the unlock state, the start switch 1312 can be operated, and at this time, the drive unit 20 can be started by the start switch 1312, and the drive unit 20 can drive the wheels 12 to rotate, so that the electrically driven trailer 1 can walk. By arranging the unlocking switch 1311, the utility model can realize that the starting switch 1312 can be operated only after the unlocking switch 1311 is triggered, the driving unit 20 can be started, and conditions are additionally arranged for starting the driving unit 20, thereby reducing the false starting probability and improving the use safety.

In some embodiments, as shown in fig. 3, the unlocking switch 1311 is disposed on the outer side of the upper end of the handle portion 131, when the user holds the handle portion 131, the user's thumb is suitable for operating the unlocking switch 1311, typically the unlocking switch 1311 is configured as a push switch, which is pushed on before the electrically driven trailer 1 is used, and pushed off after the electrically driven trailer 1 is used, so that it is disposed on the side of the handle portion 131 near the user's thumb, and when the user holds the handle portion 131, the user's thumb conveniently operates the unlocking switch 1311, which is more convenient for the user to operate with one hand, and the operation has consistency without changing the holding posture.

The handle portion 131 includes an annular grip that facilitates the user's handling of the handle portion 131. The start switch 1312 is disposed on the inner side of the upper end of the ring-shaped handle, the unlock switch 1311 is disposed on the outer side of the upper end of the ring-shaped handle, and the start switch 1312 is close to the middle of the ring-shaped handle, and the unlock switch 1311 is close to one side of the ring-shaped handle, so that when a user grasps the ring-shaped handle by hand, four fingers are suitable for being placed at the start switch 1312, and a thumb is suitable for being placed at the unlock switch 1311, so that in the actual operation process, the unlock switch 1311 is always on the thumb side by rotating the handle portion 131, and the start switch 1312 is disposed in the middle of the ring-shaped handle, so that no matter where the handle portion 131 is rotated, the user grasps the ring-shaped handle by hand, and the four fingers are placed at the start switch 1312, so that the user can control the electrically-driven trailer 1 by the unlock switch 1311 and the start switch 1312 better.

As shown in fig. 2-3, the handle 131 is further provided with a speed regulating switch 1313, the speed regulating switch 1313 is electrically connected to the driving unit 20, and the speed regulating switch 1313 is adapted to send a speed regulating signal to the driving unit 20, so as to regulate the running speed of the electrically driven trailer 1. The starting switch 1312 and the speed regulating switch 1313 are started only when the unlocking switch 1311 is in a starting state, so that in a specific operation process, the unlocking switch 1311 needs to be triggered firstly, then the starting switch 1312 is pressed down, the driving unit 20 can drive the wheels 12 to rotate, the electric drive trailer 1 can walk, and the electric drive trailer 1 can regulate the running speed through the speed regulating switch 1313, so that a user can use the electric drive trailer more conveniently, and if the electric drive trailer meets a flat and obstacle-free path, the user can quickly travel, and when the obstacles or pedestrians are more and the road surface is uneven, the running speed needs to be reduced to ensure the safety of the user, and when the electric drive trailer meets an ascending condition, the speed can be increased, and the output power can be increased to safely transport the ascending slope.

In some embodiments, the start switch 1312 is configured in such a way that the user needs to continuously press to connect, further ensuring the safety of the user using the electrically driven trailer 1, avoiding the scenario that the user accidentally loosens his hands for some reason but the electrically driven trailer 1 is still continuously advancing.

In some embodiments, the speed regulating switch 1313 is configured as a rolling stepless speed regulating switch 1313, and the rolling direction of the speed regulating switch is consistent with the holding direction of the user, so that the user can conveniently and simply regulate the running speed of the electrically driven trailer 1 at any time in the holding process, and the convenience and safety of use are improved.

As shown in fig. 2, the extension rod includes an extension rod body 132 and a pair of connecting rods 133, wherein a first end of the extension rod body 132 is rotatably connected with the handle portion 131, the pair of connecting rods 133 are symmetrically disposed on two sides of the extension rod body 132, and the first ends of the connecting rods 133 are respectively connected with a second end of the extension rod body 132, and the second ends of the connecting rods 133 are respectively connected with the frame 11. According to the utility model, the stability of connection between the extension rod body 132 and the frame 11 can be effectively improved by arranging the pair of connecting rods 133, and the other ends of the connecting rods 133 are respectively arranged at two sides of the frame 11, so that when the extension rod body 132 pulls the electrically driven trailer 1 through the connecting rods 133, the connecting rods 133 can respectively pull two sides of the frame 11, and the stability of the electrically driven trailer 1 in the walking process is greatly improved.

In some embodiments, the extension pole body 132 is a telescoping pole such that the length of the extension pole body 132 is adjustable. The length is adjustable, is convenient for in the in-service use, can adjust the length of extension rod body 132 according to the user of different heights to make extension rod body 132 be in suitable length, in order to satisfy the demand when different height users draw electric drive trailer 1, improve the comfort level in the use of electric drive trailer 1.

Wherein, as shown in fig. 2, the power supply unit 30 includes a battery compartment 31, the battery compartment 31 is disposed on the vehicle body 10, the battery pack 32 is detachably mounted in the battery compartment 31, and the battery pack 32 can be directly taken out from the battery compartment 31 when the electric quantity of the battery pack 32 is too low, and then the battery pack 32 is charged, so that the situation that the whole electric drive trailer 1 needs to be pushed to a charging position for charging during charging is avoided, and the charging process is simplified. Be equipped with first electric connection line 311 and second electric connection line 312 in the battery compartment 31, first electric connection line 311 is suitable for electric connection battery compartment 31 and extension pole body 132, can realize controlling power supply unit 30 through a plurality of control switches on the handle portion 131 of extension pole body 132 upper end through setting up first electric connection line 311 and supply power, second electric connection line 312 is suitable for electric connection battery compartment 31 and drive unit 20, second electric connection line 312 is suitable for supplying power to drive unit 20, simultaneously also can give drive unit 20 with the operation signal transmission of switch, be convenient for drive unit 20 carries out corresponding operation.

As shown in fig. 5, a first connecting piece 134 is disposed on a side of the extension rod body 132 near the connecting rod 133, the extension rod body 132 and each connecting rod 133 can be effectively connected by disposing the first connecting piece 134, a first mounting portion 135 and a pair of second mounting portions 136 are disposed on the first connecting piece 134, the first mounting portion 135 penetrates through the first connecting piece 134 from top to bottom, the pair of second mounting portions 136 are disposed on two sides of the first mounting portion 135, the extension rod body 132 is suitable for being connected with the first connecting block through the first mounting portion 135, and the extension rod body 132 can be conveniently moved up and down along the first mounting portion 135 by disposing the first mounting portion 135, so as to achieve the purpose of adjusting the length of the extension rod body 132, so that the length of the extension rod body 132 can be adjusted according to different demands of people in the actual operation process. The connecting rods 133 are rotatably installed in the second installation part 136, and the purpose of rotational connection can be achieved by changing the direction of the traveling of the electrically driven trailer 1 through the connection rods 133 when the direction of the traveling of the electrically driven trailer 1 is changed, and when the handle part 131 drives the extension rod body 132 to move in the direction in which the electrically driven trailer 1 needs to travel, the connection rods 133 can also be adjusted along with the adjustment of the extension rod body 132, so that the purpose of changing the direction of the traveling of the electrically driven trailer 1 is achieved by changing the direction of the extension rod body 132.

In other embodiments, the force condition of the extension rod body 132 can be changed by replacing the connecting rod 133 with a different length during the actual operation, so that the connecting rod 133 with a suitable length can be selected according to the calculation to achieve the purpose of saving labor.

Wherein, first connecting piece 134 is the structure of falling trapezoid, and two second installation department 136 set up in the inclined plane position of falling trapezoid structure, through setting up second installation department 136 in the inclined plane position of first connecting piece 134, can be convenient for connecting rod 133 rotate along the axis of second installation department 136 to make connecting rod 133 can rotate along with the rotation of extension rod body 132, in order to realize changing the purpose of electric drive trailer 1 walking direction.

Wherein, first connecting piece 134 is the symmetry setting along the axis of extension pole body 132, and the connecting rod 133 of the aim at both sides that the symmetry set up can be the symmetry setting along extension pole body 132, and first connecting piece 134 is isosceles trapezoid structure simultaneously for no matter extension pole body 132 moves to the limit in actual operation in-process, the connecting rod 133 of its both sides can both adapt to its change through the articulated mode of second installation department 136, thereby reaches the purpose that realizes changing electric drive trailer 1 walking direction.

Wherein, as shown in fig. 4, be equipped with the second connecting piece 111 on the frame 11, the second connecting piece 111 is suitable for connecting wheel 12 and frame 11, be equipped with the turning block 112 on the second connecting piece 111, the one end rotation of turning block 112 is connected in connecting rod 133, through setting up in the rotation between turning block 112 and connecting rod 133 and connecting, simultaneously the other end of cooperation connecting rod 133 is also being connected for the rotation between second installation department 136, can be convenient for when changing the walking direction of electric drive trailer 1 through rotating extension rod body 132, connecting rod 133 is because both ends are the rotation connection, thereby can realize the rotation of connecting rod 133 cooperation extension rod body 132, thereby reach the purpose of changing the walking direction of electric drive trailer 1. The other end of the rotating block 112 is rotationally connected with the second connecting piece 111, the connecting rod 133 is suitable for rotating on the second connecting piece 111 through the rotating block 112, through setting up to rotate between rotating block 112 and the second connecting piece 111 to be connected, when can be in actual operation process, forward pulling extension rod body 132, extension rod body 132 can drive connecting rod 133 to rotate on the second connecting piece 111 through rotating block 112, can realize from this that whole action bars 13 rotate to have certain inclination between the frame 113 in electric drive trailer 1, the personnel of being convenient for more conveniently pull electric drive trailer 1 through action bars 13, simultaneously also can be more laborsaving.

As a modification, the outside of the first electrical connection line 311 is sleeved with a bellows. The corrugated pipe is sleeved on the outer surface of the first electric connecting wire 311, so that abrasion of the first electric connecting wire 311 can be avoided, and the purpose of protecting the first electric connecting wire 311 is achieved.

As an improvement, the second electrical connection line 312 is adapted to be disposed along the front frame 113 and the bottom frame 116, so that the bottom frame 116 can protect the second electrical connection line 312 while the second electrical connection line 312 does not occupy additional space, and the second electrical connection line 312 is sleeved with a bellows outside a section of the front frame 113, and the bellows can protect the second electrical connection line 312 of the section of the front frame 113, thereby improving safety of the second electrical connection line 312 in use and prolonging service life thereof.

It should be noted that the vehicle body 10 may further include a fabric layer (not shown) disposed on the frame 11, where the accommodating space of the vehicle body 10 is defined by the frame 11 and the fabric layer, and the fabric layer is beneficial to improving the accommodating capacity of the vehicle body 10 while reducing the weight of the vehicle body 10, so that objects placed in the fabric layer are not easy to fall out of the vehicle body 10 through the frame 11.

In some embodiments, the frame 11 is rectangular and is foldable, so that the frame 11 can be stored in a folding manner after being used, and the occupied space of the electrically-driven trailer 1 is reduced.

The frame 11 includes a bottom frame 116, side frames 115 positioned at both sides of the bottom frame 116, and front and rear frames 113 and 114 coupled to the bottom frame 116 and the side frames 115, the bottom frame 116 includes front and rear plates rotatably coupled, the front frame 113 is rotatably coupled to the front plate, the rear frame 114 is rotatably coupled to the rear plate, two side frames 115 are disposed at both sides of the bottom frame 116, and both ends are respectively coupled to the front and rear frames 113 and 114, the bottom and side frames 116 and 115 cooperate to form a receiving space for receiving an object, the front and rear frames 113 and 114 are not foldable, and the bottom and side frames 116 and 115 are configured to be folded.

When folding is required, the front frame 113 and the rear frame 114 are moved closer to each other, the joints of the front and rear panels are rotated to be moved closer to each other, and the side frames 115 are deformed by rotation at the hinge joints, so that the frames 11 can be folded together.

It should be noted that the specific structure of the foldable frame 11 may be selected in many ways, and all the frames 11 that can be folded to achieve the volume reduction are within the scope of the present utility model.

The number of the wheels 12 is multiple, the multiple wheels 12 are arranged at intervals along the length direction of the frame 11, each group of wheels 12 is arranged in parallel along the width direction of the frame 11, one group of wheels 12 or multiple groups of wheels 12 closest to the operating rod 13 are universal wheels, the vehicle body 10 is guided to change direction along with the external force applied to the operating rod 13 by a user, and the driving unit 20 drives at least one wheel 12 in the other groups to rotate.

In other embodiments, the wheel 12 includes a pair of front wheels 121 and a pair of rear wheels 122, the pair of front wheels 121 being spaced apart at the front end of the bottom frame 116 and the pair of rear wheels 122 being spaced apart at the rear end of the bottom frame 116, and the drive unit 20 being adapted to drive the rear wheels 122 for rotation.

In some embodiments, a pair of rear wheels 122 are connected by a transmission shaft, and the driving unit 20 drives the transmission shaft to rotate so that the rear wheels 122 rotate forward, and the connection manner of the transmission shaft and the rear wheels 122 is a prior art, and a description thereof is omitted herein.

The foregoing has outlined the basic principles, features, and advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides an electric drive trailer, includes automobile body, drive unit and power supply unit, power supply unit is suitable for to the power supply of drive unit, the automobile body includes the frame, sets up a plurality of wheels of frame bottom and with the action bars that the frame is connected, drive unit is suitable for the drive at least one the wheel rotates, its characterized in that: the operation rod comprises a handle part and an extension rod, one end of the extension rod is connected with the frame, and the other end of the extension rod is rotatably connected with the handle part, so that the handle part is suitable for rotating by taking the extension direction of the extension rod as a rotating shaft.

2. The electrically driven trailer of claim 1, wherein: the handle part is provided with a plurality of switches for controlling the operation of the driving unit, and at least one switch is asymmetric relative to the rotation axis of the handle part.

3. An electrically driven trailer as claimed in claim 2, wherein: the handle part is symmetrical relative to the rotation axis, and at least one switch is arranged on one side of the rotation axis of the handle part.

4. An electrically driven trailer as claimed in claim 2 or 3, wherein: at least one of the switches is also symmetrical about the rotational axis of the handle portion.

5. The electrically driven trailer of claim 1, wherein: the handle part is provided with a starting switch and an unlocking switch, the starting switch is electrically connected with the driving unit or the power supply unit, the unlocking switch is used for locking or unlocking the starting switch, so that when the unlocking switch is operated, the starting switch can be operated, and when the unlocking switch is not operated, the starting switch cannot be operated.

6. The electrically driven trailer of claim 5, wherein: the handle portion comprises an annular handle, the starting switch is arranged on the inner side of the upper end of the annular handle, the unlocking switch is arranged on the outer side of the upper end of the annular handle, the starting switch is close to the middle of the annular handle, the unlocking switch is close to one side of the annular handle, so that when a user holds the annular handle in a hand, four fingers are suitable for being placed at the starting switch, and a thumb is suitable for being placed at the unlocking switch.

7. The electrically driven trailer of claim 6, wherein: the handle part also comprises a speed regulating switch which is electrically connected with the driving unit and used for controlling the rotating speed of the driving unit, and the speed regulating switch and the starting switch are oppositely arranged on the inner side of the annular handle, so that when a user holds the annular handle by hand, the speed regulating switch can be operated when four fingers extend out.

8. The electrically driven trailer of claim 7, wherein: the extension rod comprises an extension rod body and a pair of connecting rods, wherein the first end of the extension rod body is rotationally connected with the handle part, the pair of connecting rods are symmetrically arranged on two sides of the extension rod body, the first ends of the connecting rods are respectively connected with the second ends of the extension rod body, and the second ends of the connecting rods are respectively connected with the frame.

9. The electrically driven trailer of claim 8, wherein: the extension rod body is a telescopic rod, so that the length of the extension rod body is adjustable.

10. The electrically driven trailer of claim 9, wherein: the power supply unit comprises a battery compartment, the battery compartment is arranged on the vehicle body, the battery pack is detachably arranged in the battery compartment, a first electric connecting wire and a second electric connecting wire are arranged in the battery compartment, the first electric connecting wire is electrically connected with the battery compartment and the extension rod body, and the second electric connecting wire is electrically connected with the battery compartment and the driving unit; the outside of first electric connecting wire the outside of second electric connecting wire all overlaps and is equipped with the bellows.