Electric carrier with replaceable accessories

Abstract

The utility model discloses an accessory replaceable electric van which comprises a frame, a U-shaped connecting frame, a lifting arm and an adjusting arm, a front guide wheel is arranged on the lower side of the front end of the frame, a walking steering wheel capable of actively rolling is arranged on the lower side of the rear end of the frame, one end of the lifting arm is rotatably connected with the frame, and the other end of the lifting arm is rotatably connected with the U-shaped connecting frame. The other end of the lifting arm is rotationally connected with the U-shaped connecting frame, U-shaped limiting grooves are formed in the lower ends of the two side faces of the U-shaped connecting frame, the adjusting wall is located above the lifting arm, one end of the adjusting arm is rotationally connected with the frame, the other end of the adjusting arm is rotationally connected with the U-shaped connecting frame, and an electric hydraulic push rod is arranged on the frame. The lower end of a cylinder barrel of the electric hydraulic push rod is rotationally connected with the frame, and a piston rod of the electric hydraulic push rod is rotationally connected with the lifting arm. According to the utility model, accessories can be replaced, the use flexibility is good, and the trafficability is good.

Description

Technical Field

[0001] The utility model relates to an electric transport vehicle, in particular to an electric transport vehicle with replaceable accessories. Background Art

[0002] An electric truck is a piece of logistics handling equipment used to transport goods. Currently, the most common electric truck is a pallet truck. It uses a battery as its power source and an electric motor as its motive force. The forks are raised by a DC motor and hydraulic transmission, pushing the cylinder up and down to lift the forks and cargo. All operations are electrically controlled, requiring no manual operation, making it a time-saving and labor-saving transport tool.

[0003] For example, a Chinese patent with authorization announcement number CN214141448U and authorization announcement date of September 7, 2021, discloses an electric transport truck with the function of a light forklift, which includes a vehicle body and a joystick. A drive system is installed in the vehicle body, a drive wheel is installed at the bottom of the vehicle body, a gantry is fixedly installed at the front end of the vehicle body, a lifting frame driven by the drive system is installed on the gantry, and two fork teeth are fixed at the front of the lifting frame; a driven wheel is installed at the bottom of the gantry. This electric transport truck has the following defects: (1) It has the functions of a forklift and an electric transport truck, but has fewer functions and poor flexibility; (2) When there are small stones or potholes on the ground, the front wheels are easily stuck and cannot move, and the vehicle has poor passability. Utility Model Content

[0004] The utility model aims to solve the above problems existing in the electric transport vehicle of the prior art and provides an electric transport vehicle with replaceable accessories, good flexibility in use and good passing ability.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: the present invention is an electric transport truck with replaceable accessories, including a frame, a U-shaped connecting frame, a lifting arm and an adjusting arm. The lower side of the front end of the frame is provided with a front guide wheel, the lower side of the rear end of the frame is provided with an actively rolling walking steering wheel, one end of the lifting arm is rotatably connected to the frame, and the other end of the lifting arm is rotatably connected to the U-shaped connecting frame, the lower ends of both side surfaces of the U-shaped connecting frame are provided with U-shaped limiting grooves, the adjusting wall is located above the lifting arm, one end of the adjusting arm is rotatably connected to the frame, and the other end of the adjusting arm is rotatably connected to the U-shaped connecting frame, an electric hydraulic push rod is provided on the frame, the lower end of the cylinder of the electric hydraulic push rod is rotatably connected to the frame, and the piston rod of the electric hydraulic push rod is rotatably connected to the lifting arm. The utility model utilizes a lead-acid battery as its power source and an electric hydraulic push rod as its motive force. The piston rod of the electric hydraulic push rod drives the lifting arm and U-shaped connecting frame for lifting and lowering, resulting in high efficiency, simple operation, safety, reliability, low noise, and zero pollution. The U-shaped connecting frame is used to connect and secure attachments (such as forks and buckets). The U-shaped limiting grooves are designed to engage the square tubes on both sides of the attachment for positioning and limiting. The attachment is then secured to the U-shaped connecting frame using bolts or other means. The U-shaped connecting frame allows the utility model to connect to a variety of attachments. The front guide wheel is mounted on the lower front end of the frame, significantly shortening the overlap between the front wheel and the attachment, providing flexible steering and allowing the front wheel diameter to be increased for improved maneuverability. The travel steering wheel is conventional and can be a hub motor, enabling automatic travel and flexible steering. The tilt angle of the U-shaped connecting frame can be adjusted by an adjusting arm. The power supply (battery), control unit, and control panel required for the utility model are all conventional or well-known in the art and are not described in detail here.

[0006] Preferably, the lifting arm is provided with an air-avoidance hole, a connecting plate is fixed on the lifting arm, and the piston rod of the electric hydraulic push rod passes through the air-avoidance hole and is rotatably connected to the connecting plate.

[0007] Preferably, the lifting arm is rotatably connected to the vehicle frame through the cooperation of a connecting shaft and a bearing on the lifting arm.

[0008] Preferably, the lifting arm is rotatably connected to the U-shaped connecting frame through the cooperation of the lower connecting shaft and bearing of the lifting arm.

[0009] Preferably, the adjusting arm includes a connecting square tube, a diagonal plate is fixed to one end of the connecting square tube, a U-shaped arm fork is provided at the other end of the connecting square tube, an adjusting arm connecting shaft is fixed to the free end of the diagonal plate, a vertical plate is provided on the frame, the adjusting arm connecting shaft is rotatably connected to the vertical plate, and a U-shaped arm fork is provided on the U-shaped arm fork.

[0010] Preferably, a screw is fixed to one end of the connecting square tube near the U-shaped arm fork, and the screw passes through the U-shaped arm fork and is locked to the U-shaped arm fork by a nut. The U-shaped arm fork and the connecting square tube are locked and fixed by a nut, and the angle of the U-shaped connecting frame can be adjusted by moving the nut.

[0011] Preferably, a handlebar shaft is provided at one end of the frame close to the travel steering wheel, which is convenient for hand gripping and is used to propel the utility model.

[0012] Preferably, connection holes are provided on the lower parts of both side surfaces of the U-shaped connecting frame, and the connection holes are located around the U-shaped limiting groove.

[0013] Therefore, the utility model has the following beneficial effects:

[0014] (1) The electric hydraulic push rod is used as the power, and the lifting arm and the U-shaped connecting frame are driven by the piston rod of the electric hydraulic push rod to move up and down, which has the characteristics of high efficiency, simple operation, safety and reliability, low noise and no pollution;

[0015] (2) The U-shaped connecting frame enables the present invention to be connected to different accessories, and has good flexibility in use;

[0016] (3) The front guide wheel is installed on the lower side of the front end of the frame, which greatly shortens the overlap length between the front wheel position and the attachment, making the steering flexible and increasing the front wheel diameter to improve the driving ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the present utility model.

[0018] Figure 2 It is a three-dimensional view of the lifting arm.

[0019] Figure 3 It is a three-dimensional view of the adjusting arm.

[0020] Figure 4 It is a three-dimensional diagram of the U-shaped connecting frame.

[0021] Figure 5 It is a schematic diagram of the cooperation between the utility model and the cargo fork.

[0022] Figure 6 It is a schematic diagram of the cooperation between the utility model and the bucket.

[0023] In the figure: frame 1, U-shaped connecting frame 2, lifting arm 3, adjusting arm 4, front guide wheel 5, walking steering wheel 6, U-shaped limit groove 7, electric hydraulic push rod 8, avoidance hole 9, connecting plate 10, lifting arm upper connecting shaft 11, lifting arm lower connecting shaft 12, connecting square tube 13, inclined plate 14, U-shaped arm fork 15, adjusting arm connecting shaft 16, vertical plate 17, U-shaped connecting frame connecting shaft 18, screw 19, nut 20, handle shaft 21, connecting hole 22, fork 23, bucket 24. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1

[0026] like Figure 1 The electric transport vehicle with replaceable attachments shown in the figure includes a frame 1, a U-shaped connecting frame 2, a lifting arm 3 and an adjusting arm 4. A front guide wheel 5 is installed on the lower side of the front end of the frame, and a walking steering wheel 6 that can actively roll is installed on the lower side of the rear end of the frame. A handle shaft 21 is installed on the end of the frame close to the walking steering wheel. One end of the lifting arm is connected to the connecting shaft 11 on the lifting arm (as shown in FIG. Figure 2 As shown) and the bearing is connected to the frame for rotation, the other end of the lifting arm is connected to the U-shaped connecting frame for rotation through the lifting arm lower connecting shaft 12 and the bearing. The lifting arm is provided with a hole 9 to avoid air, and a connecting plate 10 is fixed on the lifting arm. The lower ends of the two sides of the U-shaped connecting frame are provided with U-shaped limit grooves 7 (as shown) Figure 4 As shown), the lower part of the two sides of the U-shaped connecting frame is provided with connecting holes 22, the connecting holes are located around the U-shaped limit groove, the adjustment wall is located above the lifting arm, and the adjustment arm includes a connecting square tube 13 (as shown Figure 3 As shown), an inclined plate 14 is fixed to one end of the connecting square tube, and a U-shaped arm fork 15 is provided at the other end of the connecting square tube. A screw 19 is fixed to the end of the connecting square tube close to the U-shaped arm fork. The screw passes through the U-shaped arm fork and is locked with the U-shaped arm fork by a nut 20. An adjusting arm connecting shaft 16 is fixed to the free end of the inclined plate, and a vertical plate 17 is fixed on the frame. The adjusting arm connecting shaft is rotatably connected to the vertical plate, and a U-shaped connecting frame connecting shaft 18 rotatably connected to the U-shaped connecting frame is fixed on the U-shaped arm fork. An electric hydraulic push rod 8 is installed on the frame, and the lower end of the cylinder of the electric hydraulic push rod is rotatably connected to the frame, and the piston rod of the electric hydraulic push rod passes through the air avoidance hole and is rotatably connected to the connecting plate.

[0027] In this embodiment 1, the attachment adopts a fork 23 (such as Figure 5 As shown in the figure, insert the square tube of the fork into the U-shaped limit groove, and then fasten the fork and the U-shaped connecting frame together with bolts.

[0028] Example 2

[0029] In this embodiment, the attachment adopts a bucket 24 (such as Figure 6 As shown in the figure, insert the square tube of the bucket into the U-shaped limit groove, and then fasten the bucket and the U-shaped connecting frame together with bolts.

[0030] The embodiment described above is only a preferred solution of the present invention and does not limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. An electric transport vehicle with replaceable accessories, characterized in that: The invention comprises a vehicle frame (1), a U-shaped connecting frame (2), a lifting arm (3) and an adjusting arm (4), wherein a front guide wheel (5) is provided on the lower side of the front end of the vehicle frame, and a walking steering wheel (6) capable of active rolling is provided on the lower side of the rear end of the vehicle frame, one end of the lifting arm is rotatably connected to the vehicle frame, and the other end of the lifting arm is rotatably connected to the U-shaped connecting frame, and U-shaped limiting grooves (7) are provided on the lower ends of both side surfaces of the U-shaped connecting frame, and the adjusting wall is located above the lifting arm, one end of the adjusting arm is rotatably connected to the vehicle frame, and the other end of the adjusting arm is rotatably connected to the U-shaped connecting frame, and an electric hydraulic push rod (8) is provided on the vehicle frame, the lower end of the cylinder of the electric hydraulic push rod is rotatably connected to the vehicle frame, and the piston rod of the electric hydraulic push rod is rotatably connected to the lifting arm.

2. The electric transport vehicle with replaceable accessories according to claim 1, characterized in that: The lifting arm is provided with an air-avoidance hole (9), a connecting plate (10) is fixed to the lifting arm, and the piston rod of the electric hydraulic push rod passes through the air-avoidance hole and is rotatably connected to the connecting plate.

3. An electric transport vehicle with replaceable accessories according to claim 1 or 2, characterized in that: The lifting arm is rotatably connected to the vehicle frame through the cooperation of a connecting shaft (11) and a bearing on the lifting arm.

4. An electric transport vehicle with replaceable accessories according to claim 1 or 2, characterized in that: The lifting arm is rotatably connected to the U-shaped connecting frame through the cooperation of the lifting arm lower connecting shaft (12) and the bearing.

5. The electric transport vehicle with replaceable accessories according to claim 1, characterized in that: The adjusting arm comprises a connecting square tube (13), one end of which is fixed with an inclined plate (14), the other end of which is provided with a U-shaped arm fork (15), the free end of which is fixed with an adjusting arm connecting shaft (16), a vertical plate (17) is provided on the vehicle frame, the adjusting arm connecting shaft is rotatably connected to the vertical plate, and the U-shaped arm fork is provided with a U-shaped connecting frame connecting shaft (18) rotatably connected to the U-shaped connecting frame.

6. The electric transport vehicle with replaceable accessories according to claim 5, characterized in that: A screw rod (19) is fixed to one end of the connecting square tube close to the U-shaped arm fork, and the screw rod passes through the U-shaped arm fork and is locked with the U-shaped arm fork by a nut (20).

7. The electric transport vehicle with replaceable accessories according to claim 1, characterized in that: A handlebar shaft (21) is provided at one end of the vehicle frame close to the travel steering wheel.

8. The electric transport vehicle with replaceable accessories according to claim 1, characterized in that: The lower parts of the two side surfaces of the U-shaped connecting frame are provided with connecting holes (22), and the connecting holes are located around the U-shaped limiting groove.

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