CN220076458U - Electric transport vehicle - Google Patents

Abstract

The utility model discloses an electric transport vehicle, which comprises a vehicle body, a driving unit and a power supply unit, wherein the power supply unit is used 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 used for driving at least one wheel to rotate, the operating rod comprises a handle, an extension rod and a pair of connecting rods, the first ends of the extension rod are connected with the handle, the pair of connecting rods are arranged at two sides of the extension rod, the first ends of the connecting rods are respectively connected with the second ends of the extension rod, the second ends of the connecting rods are rotatably connected with the frame, a first electric connecting wire is arranged between the extension rod and the power supply unit, so that the power supply unit can supply power to the operating rod, and the connecting rods can respectively pull the two sides of the frame when the extension rod pulls a transport vehicle through the connecting rods, so that the stability of the transport vehicle in the walking process is greatly improved.

Description

Electric transport vehicle

Technical Field

The utility model relates to the technical field of transportation equipment, in particular to an electric transportation vehicle.

Background

The transport vehicle 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 transport vehicle, and is quite laborious for heavier objects or for places with steeper slopes by only relying on two pushing or pulling, so that the electric transport vehicle 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.

However, the existing electric transport vehicle has the following defects: the operating lever on the transportation handle is directly connected with the front frame in a hinged manner, so that the operating lever is not stable enough with the front frame when the transportation vehicle is pulled to walk, and the transportation vehicle can shift left or right when the transportation vehicle walks, and the stability of the transportation vehicle during walking can be influenced.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model aims to provide the electric transport vehicle with good operation stability.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an electric transport vehicle, includes automobile body, drive unit and power supply unit, power supply unit is used 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 used for driving at least one the wheel rotates, the action bars includes handle, extension rod and a pair of connecting rod, the first end of extension rod is connected the handle, a pair of the connecting rod sets up the both sides of extension rod, and each the first end of connecting rod respectively with the second end of extension rod is connected, each the second end of connecting rod with the frame is rotationally connected, the extension rod with be equipped with first electric connection line between the power supply unit, so that the power supply unit can to the action bars department power supply.

Preferably, the handle is provided with at least one switch for controlling the operation of the driving unit, and the extension rod is internally provided with an electrical connection structure, and the electrical connection structure is suitable for connecting the switch and the first electrical connection wire.

Preferably, the operation rod includes a first connecting member connected to the second end of the extension rod and the first ends of the two connection rods, respectively.

Preferably, the first connector is provided with a first mounting portion and a pair of second mounting portions, the first mounting portion penetrates through the first connector from top to bottom, the second end of the extension rod is arranged in the first mounting portion, the first electrical connecting wire penetrates through the first mounting portion to extend to the second end of the extension rod, the pair of second mounting portions are arranged on two sides of the first mounting portion, and the first ends of the two connecting rods are respectively arranged in the second mounting portions.

As another preferable aspect, an inverted Y-shaped structure is formed between the two connection bars and the extension bar.

As another preference, the extension rod is a telescopic rod such that the length of the extension rod is adjustable.

Preferably, the power supply unit includes a battery compartment provided on the vehicle body, the battery pack is adapted to be detachably mounted in the battery compartment, one end of the first electrical connection wire is electrically connected to the battery compartment, and the other end of the first electrical connection wire extends to the second end of the extension rod.

Further preferably, the first electrical connection wire is sleeved with a telescopic sheath, so that when the operation rod rotates relative to the vehicle body, the first electrical connection wire and the telescopic sheath can adapt to the change of the distance between the second end of the extension rod and the battery compartment.

Further, a second electrical connection line is provided between the battery compartment and the drive unit, such that the power supply unit may supply power to the drive unit, the second electrical connection line being arranged along the frame.

Further, the frame includes preceding frame, back frame, underframe and a pair of side frame, a pair of side frame divide to be located the both sides of underframe, preceding frame set up in the front end of underframe, the back frame set up in the rear end of underframe, power supply unit set up in on the preceding frame, drive unit sets up in being close to one side of back frame, the second electricity connecting wire is followed preceding frame and underframe sets up, the second electricity connecting wire is located the outside cover of one section of preceding frame is equipped with the sheath.

Further, the extension rod may slide up and down within the first mounting portion.

Further, the bottom frame and the side frames may be folded and contracted in the traveling direction of the electric transportation vehicle.

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

(1) According to the utility model, the pair of connecting rods are arranged, so that the contact point between the extension rod and the frame is increased, and the stability of the extension rod when the extension rod pulls the transport vehicle to walk is improved.

(2) The connecting rods are symmetrically arranged on two sides of the extension rod, meanwhile, the other side of each connecting rod is also connected with the frame, so that the stability of the traveling of the transport vehicle can be improved by pulling two sides of the frame when the transport vehicle travels, the situation that the transport vehicle is easy to deviate leftwards or rightwards in the traveling process of the transport vehicle when the transport vehicle is connected through the single rods in the prior art is effectively avoided, and the stability of the transport vehicle is improved.

(3) Through set up first electric connection line between extension rod and power supply unit for when the action bars takes place to rotate for the automobile body, the distance between the second end of extension rod and the power supply unit changes that first electric connection line adaptable, improves its practicality.

Drawings

Fig. 1 is a perspective view of an electric vehicle according to the present utility model.

Fig. 2 is a front view of the electric vehicle according to 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.

In the figure: 1. a transport vehicle; 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; 1311. a switch; 132. an extension rod; 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 electric vehicle 1 as shown in fig. 1-4 includes 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 retract under the assistance of the driving unit 20.

The handcart that relies on the manpower to pull with the tradition changes electric drive into, and the user only needs the advancing direction of control handcart 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 rod 13 includes a handle 131, an extension rod 132, and a pair of connection rods 133, wherein a first end of the extension rod 132 is connected to the handle 131, the pair of connection rods 133 are symmetrically disposed on two sides of the extension rod 132, and a first end of each connection rod 133 is connected to a second end of the extension rod 132, and a second end of the connection rod 133 is rotatably connected to the frame 11, and a first electrical connection line 311 is disposed between the extension rod 132 and the power supply unit 30, so that the power supply unit 30 can supply power to the operation rod 13. In the utility model, by arranging the pair of connecting rods 133, the contact point of connection between the extension rod 132 and the frame 11 is increased, the stability of connection between the extension rod 132 and the frame 11 is improved, and meanwhile, the second ends of the connecting rods 133 are respectively arranged at two sides of the front frame 113, so that when the extension rod 132 pulls the transport vehicle 1 through the connecting rods 133, the connecting rods 133 can respectively pull two sides of the front frame 113, thereby greatly improving the stability in the travelling process of the transport vehicle 1.

Wherein, be equipped with at least one switch 1311 that is used for controlling the operation of drive unit 20 on the handle 131, be equipped with electric connection structure in the extension rod 132, electric connection structure is suitable for connecting first electric connection line 311 and switch 1311, through setting up switch 1311 on handle 131, the user of being convenient for can be when pulling transport vechicle 1 and walk, the switch 1311 on the accessible handle 131 controls drive unit 20 and opens and stops for automobile body 10 can advance or retreat under drive unit 20's helping hand.

The operation lever 13 includes a first connecting piece 134, and the first connecting piece 134 is respectively connected to the second ends of the extension rods 132 and the first ends of the two connecting rods 133. Through setting up first connecting piece 134, can be effectively to the second end of extension rod 132 and the first end of two connecting rods 133 be connected respectively, first connecting piece 134 is independent with the connection between extension rod 132 and first connecting piece 134 and the connecting rod 133 simultaneously to improve the smoothness nature in the operation.

1-3, a first mounting portion 135 and a pair of second mounting portions 136 are disposed on the first connecting member 134, the first mounting portion 135 penetrates through the first connecting member 134 from top to bottom, and the second end of the extension rod 132 is disposed in the first mounting portion 135, so that the extension rod 132 can move up and down along the first mounting portion 135 to adjust the length of the extension rod 132, so that the length of the extension rod 132 can be adjusted according to different requirements of people in an actual operation process. The first electrical connection line 311 extends through the first mounting portion 135 to the second end of the extension rod 132, and the power supply unit 30 is adapted to be electrically connected to a switch 1311 on the handle 131 through the first electrical connection line 311, thereby enabling control of the drive unit 20 through the switch 1311 on the handle 131. The pair of second installation parts 136 are respectively arranged at two sides of the first installation part 135, the first ends of the two connecting rods 133 are respectively rotatably installed in the second installation parts 136, the purpose of rotational connection can be achieved when the moving direction of the transport vehicle 1 is changed, the handle 131 can drive the extension rod 132 to move towards the direction in which the transport vehicle 1 needs to walk, and the connecting rods 133 can also be adjusted along with the adjustment of the extension rod 132, so that the purpose of changing the walking direction of the transport vehicle 1 is achieved by changing the direction of the extension rod 132.

In some embodiments, the first connector 134 is provided with a switch for locking or unlocking the sliding movement of the extension rod 132, and the length of the extension rod 132 can be adjusted by pressing the switch when the length of the extension rod 132 needs to be adjusted during a specific operation, and the extension rod 132 can slide up and down in the first mounting portion 135.

In other embodiments, the force condition of the extension rod 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.

As shown in fig. 2, the first connecting member 134 is of an inverted trapezoid structure, and the two second mounting portions 136 are disposed at the inclined plane positions of the inverted trapezoid structure, so that the connecting rod 133 can be conveniently rotated along the axis of the second mounting portion 136 by disposing the second mounting portion 136 at the inclined plane position of the first connecting member 134, so that the connecting rod 133 can be rotated along with the rotation of the extension rod 132, thereby achieving the purpose of changing the traveling direction of the transport vehicle 1.

Wherein, as shown in fig. 2, the first connecting piece 134 is symmetrically arranged along the central axis of the extension rod 132, the connecting rods 133 on two sides of the symmetrically arranged connecting piece can be symmetrically arranged along the extension rod 132, and meanwhile, the first connecting piece 134 is also in an isosceles trapezoid structure, so that the connecting rods 133 on two sides of the connecting piece can adapt to the change of the extension rod 132 in the actual operation process in spite of the movement of the extension rod 132 in the way of hinging the second mounting part 136, thereby achieving the purpose of changing the traveling direction of the transport vehicle 1.

As shown in fig. 2, an inverted Y-shaped structure is formed between the two connecting rods 133 and the extension rod 132, and the inverted Y-shaped structure can improve stability of the extension rod 132 in the traveling process of the transport vehicle 1, so as to avoid side-to-side swing of the transport vehicle 1 in the traveling process.

Wherein, extension rod 132 is telescopic pole to make extension rod 132's length adjustable, through setting up extension rod 132 in telescopic structure, be convenient for adjust extension rod 132's length according to different user's height, be convenient for extension rod 132 can satisfy different user's demand.

Wherein, power supply unit 30 includes battery compartment 31, and battery compartment 31 sets up on automobile body 10, and battery package 32 detachably installs in battery compartment 31, and detachably installs the condition that is convenient for need push away whole transport vechicle 1 to the charge position when charging in battery package 32 electric quantity is too low, can directly take out battery package 32 from battery compartment 31, then charges battery package 32, simplifies the charging process. The battery compartment 31 is internally provided with a first electric connection wire 311 and a second electric connection wire 312, one end of the first electric connection wire 311 is electrically connected with the battery compartment 31, and the other end of the first electric connection wire 311 extends to the second end of the extension rod 132. The power supply unit 30 can be controlled to supply power through the plurality of switches 1311 on the handle 131 at the upper end of the extension rod 132 by arranging the first electric connecting wire 311, the second electric connecting wire 312 is suitable for electrically connecting the battery compartment 31 and the driving unit 20, the second electric connecting wire 312 is suitable for supplying power to the driving unit 20, and meanwhile, the operation signals of the switches 1311 can be transmitted to the driving unit 20, so that the driving unit 20 can conveniently perform corresponding operations.

Wherein, as shown in fig. 1 and 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 rotating between turning block 112 and connecting rod 133 and connecting, simultaneously the other end of cooperation connecting rod 133 is also being connected for rotating between the second installation department 136, can be convenient for when changing the walking direction of transport vechicle 1 through rotating extension rod 132, connecting rod 133 is because both ends are rotating and are connected, thereby can realize the rotation of connecting rod 133 cooperation extension rod 132, thereby reach the purpose that changes transport vechicle 1 walking direction. 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 the rotating block 112 and the second connecting piece 111 to be connected, when the extending rod 132 can be pulled forward in the actual operation process, the extending rod 132 can drive the connecting rod 133 to rotate on the second connecting piece 111 through the rotating block 112, thereby can realize that the whole operating rod 13 rotates to have a certain inclination between the front frame 113 of the transport vehicle 1, the personnel can conveniently pull the transport vehicle 1 through the operating rod 13, and simultaneously can be more labor-saving.

As a modification, the first electrical connection wire 311 is externally sleeved with a telescopic sheath (not shown in the drawings), so that the first electrical connection wire 311 and the telescopic sheath can adapt to the change of the distance between the second end of the extension rod 132 and the battery compartment 31 when the operation rod 13 rotates relative to the vehicle body 10.

In some embodiments, the retractable sheath is preferably a bellows, and the bellows is sleeved on the outer surface of the first electrical connection wire 311, so that abrasion of the first electrical connection wire 311 can be avoided, and the purpose of protecting the first electrical connection wire 311 is achieved.

The second electrical connection line 312 is disposed between the battery compartment 31 and the driving unit 20, so that the power supply unit 30 can supply power to the driving unit 20, the second electrical connection line 312 is disposed along the frame 11, and the second electrical connection line 312 is suitable for supplying power to the driving unit 20, so that the driving unit 20 can drive the wheels 12 to move, so as to achieve the purpose of walking of the electrically-driven transport vehicle 1.

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. The bottom frame 116 and the side frames 115 can be folded and contracted along the traveling direction of the electric transportation vehicle 1.

As an improvement, the second electrical connection wire 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 wire 312 while the second electrical connection wire 312 does not occupy additional space, a sheath (not shown) is sleeved outside a section of the front frame 113 of the second electrical connection wire 312, and the sheath can protect the second electrical connection wire 312 of the section of the front frame 113, thereby improving the safety of the second electrical connection wire 312 during use and prolonging the service life of the second electrical connection wire 312.

In some embodiments, the sheath is preferably a bellows.

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, is a foldable frame 11, and can be folded and stored after being used, so that the occupied space of the transport vehicle 1 is reduced.

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 from the front end of the bottom frame 116, the pair of rear wheels 122 being spaced apart from 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 (12)

1. The utility model provides an electric transport vehicle, includes automobile body, drive unit and power supply unit, power supply unit be used 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 used for driving at least one the wheel rotates, its characterized in that: the operation rod comprises a handle, an extension rod and a pair of connecting rods, wherein the first end of the extension rod is connected with the handle, the pair of connecting rods are arranged on two sides of the extension rod, the first ends of the connecting rods are connected with the second ends of the extension rod, the second ends of the connecting rods are rotatably connected with the frame, and a first electric connecting wire is arranged between the extension rod and the power supply unit, so that the power supply unit can supply power to the operation rod.

2. The electric vehicle of claim 1, wherein: the handle is provided with at least one switch for controlling the operation of the driving unit, the extension rod is internally provided with an electric connection structure, and the electric connection structure is suitable for being connected with the switch and the first electric connection wire.

3. The electric vehicle of claim 2, wherein: the operation rod comprises a first connecting piece, and the first connecting piece is respectively connected with the second end of the extension rod and the first ends of the two connecting rods.

4. An electric vehicle as claimed in claim 3, characterized in that: the first connecting piece is provided with a first mounting part and a pair of second mounting parts, the first mounting part penetrates through the first connecting piece from top to bottom, the second end of the extension rod is arranged in the first mounting part, the first electric connecting wire penetrates through the first mounting part and extends to the second end of the extension rod, the pair of second mounting parts are arranged on two sides of the first mounting part, and the first ends of the two connecting rods are respectively arranged in the second mounting parts.

5. The electric vehicle of claim 4, wherein: an inverted Y-shaped structure is formed between the two connecting rods and the extension rod.

6. The electric vehicle of claim 5, wherein: the extension rod is a telescoping rod such that the length of the extension rod is adjustable.

7. The electric vehicle of any of claims 1-6, characterized in that: the power supply unit comprises a battery compartment arranged on the vehicle body, the battery pack is suitable for being detachably arranged in the battery compartment, one end of the first electric connecting wire is electrically connected with the battery compartment, and the other end of the first electric connecting wire extends to the second end of the extension rod.

8. The electric vehicle of claim 7, wherein: the telescopic sheath is sleeved outside the first electric connecting wire, so that when the operating rod rotates relative to the vehicle body, the first electric connecting wire and the telescopic sheath can adapt to the change of the distance between the second end of the extension rod and the battery compartment.

9. The electric vehicle of claim 8, wherein: a second electrical connection line is arranged between the battery compartment and the driving unit, so that the power supply unit can supply power to the driving unit, and the second electrical connection line is arranged along the frame.

10. The electric vehicle of claim 9, wherein: the frame includes preceding frame, back frame, underframe and a pair of side frame, a pair of side frame divide to be located the both sides of underframe, preceding frame set up in the front end of underframe, the back frame set up in the rear end of underframe, power supply unit set up in on the preceding frame, drive unit sets up in being close to one side of back frame, the second electricity connecting wire is followed preceding frame with the underframe sets up, the second electricity connecting wire is located the outside of one section of preceding frame also overlaps and is equipped with the sheath.

11. The electric vehicle of claim 5, wherein: the extension rod is slidable up and down within the first mounting portion.

12. The electric vehicle of claim 10, wherein: the bottom frame and the side frames can be folded and contracted along the running direction of the electric transport vehicle.