CN220009806U

CN220009806U - Electric driven handcart

Info

Publication number: CN220009806U
Application number: CN202321252880.2U
Authority: CN
Inventors: 颜秋波; 张文宇
Original assignee: Zhejiang Lera New Energy Power Technology Co Ltd
Current assignee: Zhejiang Lera New Energy Power Technology Co Ltd
Priority date: 2023-01-18
Filing date: 2023-05-19
Publication date: 2023-11-14
Anticipated expiration: 2033-05-19
Also published as: CN219969717U; CN219969716U; CN219806849U; CN118804869A; CN219821485U; CN220076454U; WO2024152579A1; CN219821486U; CN220374551U; CN220009805U

Abstract

The utility model discloses an electric drive handcart, which comprises a foldable cart body, a driving unit and a power supply unit, wherein the driving unit is used for driving wheels of the cart body to rotate, the power supply unit is used for supplying power to the driving unit, a power supply opening part is arranged on the power supply unit, and the power supply opening part is suitable for being opened by a key so as to enable the driving unit to be in a started state. The electric drive handcart disclosed by the utility model improves the convenience and safety of use of users, and overcomes some defects of the existing handcart.

Description

Electric driven handcart

Technical Field

The utility model relates to the technical field of conveying devices and carrying devices, in particular to an electric drive trolley.

Background

The trolley is widely applied to production and life, is convenient to operate, has light dead weight and is very convenient to load and transport objects in short distances. The initial cart is pushed and pulled manually, and is very laborious to push or pull by means of two hands for heavier objects or for places with steep gradients, and then the small-sized cart driven by electric power is arranged, so that the burden of workers can be effectively reduced, and the transportation efficiency is improved.

With the continuous development of modern technology, people put forward higher requirements on the convenience of the electric cart. The existing electric trolley generally adopts a storage battery as power supply equipment so as to realize long-distance transportation and use of the electric trolley. However, due to technical limitations, particularly in charging, the electric cart needs to be charged by plugging in the charger after the electric quantity of the storage battery is exhausted, and then the electric cart needs to be manually pushed and pulled to a place where the electric cart can be powered indoors or outdoors, and a charger special for the electric cart needs to be matched. Long-term use finds that when the existing electric cart is used outdoors, the existing electric cart needs to be moved to be charged indoors after no electricity is generated, manpower is wasted, time is occupied, and the special charger for the electric cart is easy to lose, so that inconvenience is brought to the use of a user, and the experience of the user when the user uses the electric cart is greatly affected.

Additionally, many electrically driven carts are not provided with a key lock, so that the electrically driven carts are in a state in which anyone can start up for use, and are easy to lose; and children can easily start the electric cart when not attended by adults, so that certain risk hidden danger exists.

Disclosure of Invention

The utility model aims to provide an electric drive handcart which can conveniently replace a battery and can be started by using a key at the same time, thereby solving the defects in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the electric drive trolley comprises a foldable trolley body, a driving unit and a power supply unit, wherein the driving unit is used for driving wheels of the trolley body to rotate, the power supply unit is used for supplying power to the driving unit, a power supply opening part is arranged on the power supply unit, and the power supply opening part is suitable for being opened by a key so that the driving unit can be in a started state; the shell of the power supply unit comprises at least one battery compartment and at least one battery pack detachably arranged in the battery compartment, and the power supply opening part is electrically connected with the battery compartment so as to control the battery pack to supply power to the driving unit through the power supply opening part; the battery compartment has a power interface adapted to be electrically connected to a power outlet on the battery pack.

As another preferable aspect, the power-on portion is disposed close to the battery compartment, and a key insertion opening of the power-on portion is oriented the same as an opening of the battery compartment.

As another preferable aspect, the power supply opening portion has a key installation cavity which is spaced apart from the battery compartment and juxtaposed.

As another preferable aspect, the power supply unit includes a housing provided on the vehicle body side surface such that an upper end surface of the housing is exposed, the battery compartment is formed in the housing, and an opening of the battery compartment is located at the upper end surface of the housing.

As another preferable aspect, the power-on portion is provided in the housing, and a key insertion opening of the power-on portion is provided in an upper end surface of the housing.

As another preferable mode, the power supply unit further comprises a protective cover which is connected with the shell in an openable and closable manner, and the protective cover is suitable for being covered on the upper end face of the shell.

As another preferable mode, at least one group of limiting structures are arranged on the inner side of the protective cover, the protective cover is arranged on the upper end face of the shell, and the limiting structures are opposite to the battery in the battery bin and the key in the power supply opening part and are used for limiting displacement of the battery pack and the key.

As another preferable aspect, the vehicle body includes a frame having a space for accommodating an object, wheels provided at a bottom of the frame, and an operation lever movably provided at one end of the frame, and the power supply unit is provided at the frame or the operation lever.

Further preferably, the frame includes a bottom plate and a side rail, and the power supply unit is disposed at an upper portion of an outer side of the side rail and is adjacent to one side of the operation lever.

The utility model also provides an electric drive handcart, which comprises a handcart body, a driving unit and a power supply unit, wherein the driving unit is used for driving wheels of the handcart body to rotate, the power supply unit is used for supplying power to the driving unit, a power supply opening part is arranged on the power supply unit, and the power supply opening part is suitable for being opened by a key so as to enable the driving unit to be in a state capable of being started; the shell of the power supply unit comprises at least one battery compartment and at least one battery pack detachably arranged in the battery compartment, and the power supply opening part is electrically connected with the battery compartment so as to control the battery pack to supply power to the driving unit through the power supply opening part; the power supply unit further comprises a protective cover which is connected with the shell in an openable and closable manner, the protective cover is suitable for being arranged on the upper end face of the shell in a covering manner, and the protective cover is suitable for opening and closing the battery compartment and the power supply opening part.

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

(1) The electric drive trolley is provided with the detachable battery pack, the standby battery pack can be quickly replaced after the battery pack is discharged, and the trolley is not required to be moved to a position where a power supply is connected after being charged, so that the burden of a user is reduced;

(2) The electric drive handcart is provided with the power supply opening part, and the power supply opening part can be opened by a key, so that the electric drive handcart is not in a state that any person can start any more, and the loss and the false start of children are avoided;

(3) The electric drive handcart is provided with the protective cover, so that the battery pack and the key mounting part are prevented from being corroded by rainwater, dust and the like, and the service life of the electric drive handcart is prolonged;

(4) The electrically driven trolley frame can be folded, is favorable for storage, and reduces the occupied space.

Drawings

FIG. 1 is a schematic view of an electrically driven cart according to an embodiment of the present utility model;

FIG. 2 is a right side view of an electrically driven cart structure according to an embodiment of the utility model;

FIG. 3 is a bottom view of an electrically driven cart structure according to one embodiment of the utility model;

FIG. 4 is a front view of an electrically driven cart structure according to an embodiment of the present utility model;

FIG. 5 is a schematic view showing a folded state of an electrically driven cart according to an embodiment of the present utility model;

FIG. 6 is a left side view of an electrically driven cart in a collapsed condition in accordance with one embodiment of the present utility model;

FIG. 7 is a front view of an electrically driven cart in a collapsed condition in accordance with one embodiment of the present utility model;

FIG. 8 is a bottom view of an electrically driven cart in a collapsed condition in accordance with one embodiment of the present utility model;

FIG. 9 is a schematic view of a power unit of an electrically driven cart according to an embodiment of the utility model, wherein the battery pack and the protective cover are not shown;

FIG. 10 is a schematic view of an electrically driven cart power unit according to an embodiment of the present utility model, wherein the protective cover is not shown;

FIG. 11 is a schematic view of the handle end of an electrically driven cart in accordance with an embodiment of the utility model;

FIG. 12 is a schematic view of another angular configuration of an electrically driven cart according to an embodiment of the utility model;

FIG. 13 is a schematic view of a battery pack of an electrically driven cart according to an embodiment of the utility model;

in the figure: 1. a vehicle body; 11. a frame; 111. a side rail; 112. a bottom plate; 12. a wheel; 121. a front wheel; 122. a rear wheel; 123. a transmission rod; 13. an operation lever; 131. a handle end; 2. a driving unit; 3. a power supply unit; 30. a housing; 31. a first output interface; 32. a battery compartment; 33. a battery pack; 331. a power outlet; 332. a second output interface; 34. a power supply opening part; 35. a protective cover; 4. a switching system; 41. a first switch; 42. a second switch; 43. a third switch; 44. and a fourth switch.

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.

As shown in fig. 1 to 13, the present utility model provides an electrically driven cart, which comprises a cart body 1, a driving unit 2, a power supply unit 3, and a switching system 4, wherein the driving unit 2 is used for driving wheels 12 of the cart body 1 to rotate, so that the cart body 1 can advance or retreat under the assistance of the driving unit 2, the power supply unit 3 is used for supplying power to the driving unit 2, and the switching system 4 is electrically connected with the driving unit 2 and is used for controlling the operation of the driving unit 2.

The handcart that will rely on the manpower to stimulate changes electric drive, and the user only needs the advancing direction of control handcart when using, labour saving and time saving, the transportation of more convenient long distance and heavy object, the hillside that runs into also can easily deal with, has improved the use convenience.

As shown in fig. 2, the vehicle body 1 includes a frame 11, a wheel 12, and an operation lever 13, the frame 11 having a space for accommodating an object, the wheel 12 being provided at the bottom of the frame 11, the operation lever 13 being provided at one end of the frame 11. When the object carrying device is used, an object is placed inside the frame 11, and the operating rod 13 is pulled to drive the frame 11 to move, so that the object carrying purpose is achieved.

It should be noted that the vehicle body 1 may further include a fabric layer (not shown in the drawings) disposed on the frame 11, the accommodating space of the vehicle body 1 is defined by the frame 11 and the fabric layer, and the fabric layer is disposed to facilitate the improvement of the accommodating capacity of the vehicle body 1 while reducing the weight of the vehicle body 1, so that the object is not easy to fall in the fabric layer.

In some embodiments, the frame 11 is rectangular, is a foldable frame 11, and can be folded for storage after use, so that the occupied space of the electric cart is reduced.

In the embodiment shown in fig. 1 and 2, the frame 11 includes a side rail 111 and a bottom plate 112, the side rail 111 includes a front rail, a rear rail, a left rail and a right rail, the bottom plate 112 includes a front plate and a rear plate rotatably connected, the front rail is rotatably connected with the front plate, the rear rail is rotatably connected with the rear plate, the left rail and the right rail are disposed at both sides of the bottom plate 112, and both ends are connected with the front rail and the rear rail, respectively, the left rail and the right rail are adapted to be folded, and the front rail and the rear rail are not foldable.

When folding is needed, the front rail and the rear rail are close to each other, the connection parts of the front plate and the rear plate are rotated to be close to each other, and the side support rods of the left rail and the right rail are hinged to be close to each other, so that the frame 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.

In the embodiment shown in fig. 1 and 2, the wheel 12 includes a pair of front wheels 121 and a pair of rear wheels 122, the pair of front wheels 121 being disposed at a front end of the floor 112 at intervals, and the pair of rear wheels 122 being disposed at a rear end of the floor 112 at intervals.

In some preferred embodiments, the projections of the pair of front wheels 121 are located between the projections of the pair of rear wheels 122 along the length of the vehicle body 1. The staggered arrangement of the front wheels 121 and the rear wheels 122 is beneficial to preventing the wheels 12 from interfering with the driving unit 2 when the electrically driven handcart is folded, and avoiding collision of the driving unit 2. After the electric drive handcart is folded, the front wheel 121 of the electric drive handcart can be stored between the two rear wheels 122, so that the volume of the electric drive handcart after being folded is reduced, and the electric drive handcart is more favorable for storage.

In some embodiments, a pair of rear wheels 122 are connected by a transmission rod 123, and the driving unit 2 drives the transmission rod 123 to rotate so that the rear wheels 122 are rotationally advanced, and the connection manner of the transmission rod 123 and the rear wheels 122 is a prior art, and a description thereof is omitted herein.

In a preferred embodiment, the height of the front wheel 121 is lower than the height of the transmission rod 123, so that when the electrically driven trolley is in a folded state, the front wheel 121 can be stored under the transmission rod 123, and the storage volume of the electrically driven trolley is further reduced, and the occupation of space is reduced.

Further, when the electrically driven cart is in a folded state, the front wheels 121 can be accommodated under the transmission rods 123, and neither the front and rear ends of the front wheels 121 protrude from the front and rear ends of the rear wheels 122, so that the accommodation volume is reduced as much as possible.

The operation lever 13 may be provided at the front end of the frame 11 or may be provided at the rear end of the frame 11. In the embodiment shown in fig. 1 and 2, the operating lever 13 is provided at the front end of the frame 11, and the operating lever 13 is hinged with the front rail.

The operating lever 13 is hinged to the frame 11 so that the operating lever 13 can rotate between its initial position and a push-pull position.

The driving unit 2 is arranged between the front wheels 121 or between the rear wheels 122, and along the projection of the length direction of the vehicle body 1, the projection of the driving unit 2 is simultaneously positioned between the projections of the front wheels 121 and the rear wheels 122, so that the electric driving trolley is not interfered with the wheels 12 in the folding process, the driving unit 2 is prevented from being collided, and the use safety is improved.

In some embodiments, the driving unit 2 is disposed on the transmission rod 123, and the driving unit 2 drives the transmission rod 123 to rotate so that the rear wheel 122 rotates and advances, and the driving unit 2 and the transmission rod 123 are disposed in a manner of the prior art, which is omitted herein.

In some embodiments, when the frame 11 is in the folded state, the front end face of the drive unit 2 does not protrude from the front end of the front wheel 121, and the rear end face of the drive unit 2 does not protrude from the rear end of the rear wheel 122. By the arrangement, after the electric drive trolley is folded, the front end face and the rear end face of the drive unit 2 are not exposed out of the wheels 12, the drive unit 2 is prevented from being collided, and the service life of the electric drive trolley is prolonged.

The driving unit 2 and the power supply unit 3 are positioned on different sides of the frame 11, so that the driving unit 2 and the power supply unit 3 are prevented from interfering with each other, the vehicle body 1 can be balanced, and the design is more convenient.

The driving unit 2 and the power supply unit 3 are electrically connected through a connecting wire, and the connection mode is the prior art and is not described herein.

The power supply unit 3 is disposed at the outer side of the side rail 111 and near the top of the side rail 111. The power supply unit 3 is provided at the side rail 111 near the top thereof, which is more convenient for the user to use, avoiding bending down when the battery pack 33 and the key are inserted and removed.

In some embodiments, the power supply unit 3 is disposed on the frame 11 on the same side as the operation lever 13, which is advantageous in shortening the wiring connection of the power supply unit 3 with the operation lever 13 and reducing the wiring length. In a preferred embodiment, the projection of the operation lever 13 on the front end surface of the side rail 111 is not coincident with the projection of the power supply unit 3, so as to reduce the influence of the arrangement of the power supply unit 3 on the operation of the operation lever 13.

In a preferred embodiment, the front of the wheel 12 protrudes from the frame 11, and the first vertical surface S is a tangential plane where a point at the front of the wheel 12 is a tangential point, that is, the first vertical surface S is a tangential plane to the front end of the front wheel 121 in the vertical direction. The front end surface of the power supply unit 3 does not protrude from the first vertical surface S, the front end surface of the initial position of the operation lever 13 does not protrude from the first vertical surface S, and the front end surface of the power supply unit 3 does not protrude from the front end surface of the operation lever 13. In this arrangement, when the front end surface of the electrically driven cart collides with a vertical plane, the front end surface of the wheel 12 becomes the collision surface, and the power supply unit 3 and the operation lever 13 are less affected.

As shown in fig. 12, the power supply unit 3 includes a power supply portion for supplying power, and a first output interface 31 electrically connected to the power supply portion, the first output interface 31 being provided on the vehicle body 1, and the external electric device being adapted to obtain electric power of the power supply portion through the first output interface 31. When a user uses the electric drive trolley to transport objects, the electric drive trolley can charge the objects at the same time, so that the electric drive trolley can transport some devices needing frequent charging more conveniently, or electric equipment is convenient to move when working. In addition, when outdoor activities, after the electric drive handcart is used for carrying goods, the first output interface 31 of the electric drive handcart can be used as a power supply to provide electric energy for other outdoor equipment, so that the outdoor activities are facilitated.

In some embodiments, the first output interface 31 is provided on the frame 11 or the lever 13, which is convenient for the user to find and use.

In a preferred embodiment, the first output interface 31 is arranged on the frame 11 and close to the power supply unit 3. The first output interface 31 is arranged on the frame 11 and is prevented from being arranged on the operating rod 13, so that the position of the first output interface 31 is fixed, the first output interface is more stable, wires cannot move along with the operating rod 13 after being connected with external electric equipment, and the use safety is improved; the first output interface 31 is arranged near the functional power supply unit 3, which is beneficial to reducing the connection of circuits and improving the stability of power supply.

In a preferred embodiment, the first output interface 31 is disposed inside the frame 11 and adjacent to the lever 13. The first output interface 31 faces the inner side of the frame 11, so that dust and water vapor are prevented from directly falling into the first output interface 31, the risk of short circuit is reduced, the power supply unit 3 is protected, and the service life of the electric drive handcart is prolonged.

As shown in fig. 9, 10, and 13, the housing 30 of the power supply unit 3 includes a battery compartment 32, and a battery pack 33 detachably provided in the battery compartment 32. The upper end surface of the housing 30 has an opening adapted to mount and dismount the battery pack 33. The battery compartment 32 is provided with a power interface that is electrically connected to a power outlet 331 on the battery pack 33 to enable the battery pack 33 to be connected to the electrical circuitry of the electrically driven cart for providing electrical power.

The power interface of the battery compartment 32 is provided at the bottom of the battery compartment 32 opposite to the opening of the housing 30 to facilitate easy installation and removal of the battery pack 33 in the battery compartment 32.

In some embodiments, the battery pack 33 is provided with a power output port 331 and a second output interface 332, where the power output port 331 is configured to be electrically connected to the power interface of the battery compartment 32 when the battery pack 33 is disposed in the battery compartment 32, so that the battery pack 33 supplies power to the driving unit 2, and the second output interface 332 is exposed at the opening of the housing 30. The second output interface 332 is adapted to supply power to external electrical devices, so that a user can use some small electrical devices when pulling the electrically-driven cart to move, thereby improving the convenience of using the electrically-driven cart.

The second output interface 332 includes at least one 3C interface, such as a USB interface, a Type-C interface, or the like. The 3C product refers to a common name of computers, communication products and consumer electronics products, such as computers, tablet computers, mobile phones or digital audio players. By providing the second output interface 332 in the battery pack 33, the user can charge the mobile phone during transportation; or in outdoor activities such as outdoor camping, the electric drive trolley is used for transporting objects, and after the objects are transported, entertainment equipment such as a mobile phone, a flat plate or an audio player can be connected through the second output interface 332, so that the electric drive trolley is more convenient for outdoor activities.

In some embodiments, the power output 331 also serves as a charging interface for the battery pack 33, that is, when the battery pack 33 is charged, external power is obtained through the power output 331, that is, the power output 331 of the battery pack 33 may be used for outputting current or inputting current.

In some embodiments, the second output interface 332 and the discharge output of the power output 331 are independent of each other, so that the battery pack 33 can stably supply power to the electrically-driven cart.

In the preferred embodiment, when the battery pack 33 is placed in the battery compartment 32, the power outlet 331 is connected to the power interface in the battery compartment 32, and the external electric device is connected to the battery pack 33 through the second output interface 332, at this time, the battery pack 33 supplies power to only one device, and preferably to the driving unit 2, so as to ensure the power for running the electrically driven trolley.

As shown in fig. 9 and 10, the housing 30 of the power supply unit 3 is further provided with a power-on portion 34, and the power-on portion 34 can be turned on by a key, so that the driving unit 2 is in a state capable of being started. The power-on portion 34 is provided, so that a user having a key can start the electrically-driven handcart, and to a certain extent, the electrically-driven handcart can be prevented from being started by other people at will, and particularly, children can be prevented from using the electrically-driven handcart without caretaking the person.

The power-on portion 34 is electrically connected to the battery compartment 32 so that a user can control the power supply of the driving unit 2 by the battery pack 33 through the power-on portion 34. The arrangement of the power-on part 34 prevents the battery pack 33 from being inserted into the battery compartment 32 and simultaneously completes a circuit, thereby improving the safety of the electrically-driven handcart.

The power-on portion 34 is disposed close to the battery compartment 32, and the key insertion opening of the power-on portion 34 is oriented the same as the opening of the battery compartment 32. The connection of the lines is reduced, and the convenience of the user is improved.

The power-on portion 34 has a key installation cavity, and the key installation cavity and the battery compartment 32 are spaced apart from each other and arranged in parallel, and such arrangement can effectively avoid interaction between the key insertion and extraction route and the battery pack 33 insertion and extraction route, so that the use of the key and the battery pack 33 is smoother.

The power-on portion 34 is disposed on the housing 30 of the power supply unit 3, and the key insertion opening of the power-on portion 34 is located on the upper end surface of the housing 30, which is beneficial to the user to take the key and the battery pack 33 along with the use and the follow-up.

The power supply unit 3 further comprises a protective cover 35 which is connected with the shell 30 in an openable and closable manner, and the protective cover 35 is suitable for being covered on the upper end face of the shell 30. In some embodiments, a protective cover 35 is provided over both the battery compartment 32 and the power on portion 34. In a preferred embodiment, the protective cover 35 covers both the battery compartment 32 and the opening of the power source opening 34. The arrangement of the protective cover 35 is favorable for providing waterproof and dustproof shielding for the battery pack 33 and the power opening part 34, firstly, the short circuit or damage caused by dust and water vapor entering the battery compartment 32 or the power opening part 34 is avoided, secondly, jolt vibration in the transportation process can be prevented, the battery pack 33 or the key slips from the opening part of the shell 30, and the stability of the power supply unit 3 is promoted.

At least one group of limiting structures (not shown in the figure) are arranged on the inner side of the protective cover 35, when the protective cover 35 is covered on the upper end face of the shell 30 and the opening of the battery pack 33 and the power opening part 34 is closed, the limiting structures are opposite to the battery pack 33 in the battery compartment 32 and the key in the power opening part 34 so as to limit the displacement of the battery pack 33 and the key, and the key or the sliding disconnection of the battery pack 33 caused by road jolt in the process of using the electric drive trolley is avoided, so that the use safety of a user is improved.

The switching system 4 is electrically connected to the drive unit 2, the switching system 4 being adapted to emit the first electrical signal and the second electrical signal independently, and the drive unit 2 being adapted to start operation after receiving the first electrical signal and the second electrical signal.

The driving unit 2 is set to be that the starting condition is met after the first electric signal and the second electric signal are received, the starting condition of the driving unit 2 is additionally set, the probability of false starting is reduced, and the use safety is improved.

Specifically, the switching system 4 includes a first switch 41 configured to emit a first electric signal when operated by a user, and a second switch 42 configured to emit a second electric signal when the operation lever 13 is operated.

As shown in fig. 11, the operation lever 13 is provided with a handle end 131, a user can push and pull the vehicle body 1 by holding the handle end 131, and the first switch 41 is provided on the handle end 131 so that the user can operate the first switch 41 to transmit the first electric signal by holding the handle end 131.

The handle end 131 is further provided with a third switch 43 adjacent to the first switch 41, and the user can operate the first switch 41 and the third switch 43 simultaneously with one hand while holding the handle end 131.

When the electric drive handcart is used by a user, the stopping and starting of the handcart can be controlled by one hand, the other hand of the user is liberated, and when the electric drive handcart is used by the user for transportation, the other hand can perform operations such as calling or map guiding, and the operability and convenience of the electric drive handcart are improved.

The first switch 41 is electrically connected to the driving unit 2, and the driving unit 2 is in a state capable of being started after the first switch 41 is turned on. When the user operates the third switch 43, the first switch 41 may be turned on. The first switch 41 is configured to be in a state that the third switch 43 can be operated after being turned on, that is, the starting of the electrically-driven trolley at least needs to meet two conditions, firstly, the third switch 43 is turned on, secondly, the first switch 41 is turned on, so that the situation that when a user holds the handle end 131, the electrically-driven trolley is started due to mistaken touch can be effectively avoided, and meanwhile, when the third switch 43 is turned off, the user pulls the electrically-driven trolley manually, so that the safety is higher.

In some embodiments, the first switch 41 is disposed inside the handle end 131, and when the user holds the handle end 131, the palm or four fingers of the user are adapted to operate the first switch 41. The first switch 41 is provided at the palm position when the user holds the electric drive cart, and the user can continuously start the electric drive cart by only holding the palm in a tight state when using the electric drive cart, and the electric drive cart can be maintained for a long time without taking a great deal of effort.

In some embodiments, the third switch 43 is disposed on the side above the handle end 131, and the thumb of the user is adapted to operate the third switch 43 when the user holds the handle end 131. Typically, the third switch 43 is configured as a push switch, which is pushed on before the electrically driven cart is used and pushed off after the electrically driven cart is used, so that the electrically driven cart is arranged on the side of the handle end 131 close to the thumb of the user, and when the user holds the handle end 131 by his or her hand, the thumb can conveniently operate the third switch 43, so that the user can operate the electrically driven cart with one hand, and the holding posture is not required to be changed, and the operation is consistent.

In some embodiments, the handle end 131 is further provided with a fourth switch 44 for adjusting the speed of movement of the electrically driven cart. The motion speed of the electric drive handcart can be adjusted, so that a user can use the electric drive handcart more conveniently, the electric drive handcart can run rapidly if the electric drive handcart encounters a flat road without barriers, the motion speed needs to be reduced when the number of barriers or pedestrians is large and the road surface is uneven, the safety of the user is ensured, the electric drive handcart also encounters an ascending condition, the speed can be adjusted to be high, and the output power is increased to safely transport the ascending condition.

The fourth switch 44 is disposed below the first switch 41, so that the user can hold the handle 131, the palm of the user continuously presses the first switch 41, and the four fingers can stretch to toggle the fourth switch 44, so that the user can turn on, lock and regulate speed completely through one hand, the arrangement is humanized, the common use habit of the user is met, and the other hand of the user is released.

The second switch 42 is configured to be triggered when the operation lever 13 is operated by the user, so that the drive unit 2 is in a state capable of being started. When the operation lever 13 is operated by the user, the operation lever 13 is moved from its initial position to the push-pull position, and when the operation lever 13 is rotated forward from the initial position by an angle α, α >0 °.

The second switch 42 can be triggered only by the operation rod 13 configured to be rotated by a user, so that the situation that the user forgets to turn off the power switch can be effectively avoided, the electric drive trolley moves forward under the condition of unmanned operation, the movement of the electric drive trolley is ensured to be controlled manually to a certain extent, the safety of the electric drive trolley is effectively improved, and the probability of accidents is reduced.

Meanwhile, in the use of the front-stage handcart, the child finds that the interest of the handcart is great, and often climbs into the frame 11 to play the alarm, if the adult who uses the handcart leaves temporarily and forgets to turn off the power supply, the child can easily turn on the electrically-driven handcart when playing in the frame 11 of the electrically-driven handcart, so that a certain risk is brought; the utility model is provided with the second switch 42, so that when a child pulls the operating rod 13 in the frame 11 in the reverse direction, the electrically-driven trolley cannot be started, and the potential safety hazard of the child when playing nearby the electrically-driven trolley is reduced to a certain extent.

In some embodiments, the lever 13 is triggered when rotated from the initial position by an angle α of 5 ° < α <80 °, more preferably 10 ° < α <60 °. The rotation angle range of the operation lever 13 from the initial position is reduced, so that the triggering condition of the second switch 42 is more severe, and the use safety of the electrically-driven handcart is increased.

The second switch 42 is provided on the frame 11, and the operating lever 13 is provided with a trigger portion corresponding to the second switch 42 such that the trigger portion is moved toward or away from the second switch 42 when the operating lever 13 is rotated, and the second switch 42 is configured to be triggered when being contacted with or separated from the trigger portion.

In some embodiments, the second switch 42 is disposed near the hinge of the operating rod 13 and the frame 11, which is beneficial to timely signal transmission between the operating rod 13 and the second switch 42, and realizes accurate control of the rotation angle.

The electric drive trolley is provided with the detachable and separable battery pack 33, so that the battery pack 33 can be separated from the trolley body 1 to be charged independently, the electric drive trolley is prevented from being moved indoors during charging, the waste of manpower is reduced, and the time is saved; meanwhile, the standby battery pack 33 is conveniently used, and the battery pack 33 can conveniently supply power to other similar machines, so that the outdoor transportation and activities are greatly facilitated.

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

1. An electrically driven trolley comprising a collapsible body, a drive unit for driving the wheels of the body in rotation, and a power supply unit for supplying power to the drive unit, characterized in that,

the power supply unit is provided with a power supply opening part which is suitable for being opened by a key so that the driving unit can be started;

the shell of the power supply unit comprises at least one battery compartment and at least one battery pack detachably arranged in the battery compartment, and the power supply opening part is electrically connected with the battery compartment so as to control the battery pack to supply power to the driving unit through the power supply opening part;

the battery compartment has a power interface adapted to be electrically connected to a power outlet on the battery pack.

2. The electrically driven cart of claim 1, wherein the power on portion is disposed proximate the battery compartment and the key insertion opening of the power on portion is oriented the same as the opening of the battery compartment.

3. The electrically driven cart of claim 1, wherein the power on portion has a key mounting cavity spaced from and juxtaposed with the battery compartment.

4. An electrically driven trolley according to any one of claims 1 to 3, wherein the power supply unit comprises a housing provided on a side of the vehicle body such that an upper end face of the housing is exposed, the battery compartment is formed in the housing, and an opening of the battery compartment is located at the upper end face of the housing.

5. The electrically driven cart of claim 4, wherein the power on portion is provided to the housing, and a key insertion opening of the power on portion is provided at an upper end surface of the housing.

6. The electrically driven cart of claim 4, wherein the power supply unit further comprises a shield that is openably and closably coupled to the housing, the shield being adapted to be disposed over an upper end surface of the housing.

7. The electrically driven cart of claim 6, wherein at least one set of limiting structures is disposed inside the protective cover, the protective cover is covered on an upper end surface of the housing, and the limiting structures are opposite to the battery in the battery compartment and the key in the power supply opening portion, and are used for limiting displacement of the battery pack and the key.

8. The electrically driven cart according to claim 1, wherein the cart body includes a frame having a space for accommodating an object, wheels provided at a bottom of the frame, and an operation lever movably provided at one end of the frame, the power supply unit being provided on the frame or the operation lever.

9. The electrically driven cart of claim 8, wherein the frame includes a floor and a side rail, and the power supply unit is disposed at an upper portion outside the side rail and near one side of the operating lever.

10. An electric drive handcart, comprising a handcart body, a drive unit and a power supply unit, wherein the drive unit is used for driving wheels of the handcart body to rotate, the power supply unit is used for supplying power to the drive unit,

the power supply unit further comprises a protective cover which is connected with the shell in an openable and closable manner, the protective cover is suitable for being arranged on the upper end face of the shell in a covering manner, and the protective cover is suitable for opening and closing the battery compartment and the power supply opening part.