Cross-country portable electric power-assisted forklift

Abstract

The utility model relates to a cross-country portable electric power-assisted forklift which comprises a U-shaped frame, two driving wheels are symmetrically arranged on the bottom face of the front end of the U-shaped frame, and a steering wheel is arranged on the bottom face of the middle of the rear end of the U-shaped frame. A push-pull handle is fixedly connected to the top face of the rear end of the U-shaped frame, a hydraulic cylinder is further fixedly connected to the top face of the rear end of the U-shaped frame, a lifting frame is connected to the top end of a piston of the hydraulic cylinder, two pallet forks are connected to the lower end of the lifting frame, and the two pallet forks and the lifting frame can be driven by the hydraulic cylinder to move up and down in the U-shaped frame. Tires of the driving wheels and the steering wheels are pneumatic tires or rubber tires with tire patterns; the box body is arranged on the outer side of the rear end of the U-shaped frame, and an electric hydraulic pump and a power battery are arranged in the box body; the push-pull handle is provided with an integrated console used for controlling hydraulic lifting of the forklift. The tires are pneumatic tires or rubber tires with tread patterns, so that the cross-country ability is high; the single hydraulic cylinder design is adopted, all parts are reasonable in design, and the whole is light and easy to operate; moving and lifting of the forklift are electrically assisted, manpower is saved, and efficiency is high.

Description

Technical Field

[0001] The utility model generally relates to the field of forklifts, and in particular to an off-road portable electric power-assisted forklift. Background Art

[0002] Forklifts are commonly used for transporting goods. Manual forklifts are dual-purpose vehicles for short-distance transportation, lifting, loading, and unloading, using manual pulling to complete transport operations. They are the simplest, most efficient, and most common pallet transport tool for loading, unloading, and transporting, and are widely used in logistics, warehouses, factories, hospitals, schools, shopping malls, airports, stadiums, and bus stations. Existing manual forklifts are often bulky, with poorly designed parts, and are unable to withstand strong winds and sudden high winds. Their hard, inelastic wheels make them inadequate for use in specialized workplaces, such as mountainous areas where they are often used on muddy roads, primarily muddy surfaces (with a loose top 5cm); fine gravel roads and uneven, low-adhesion gravel surfaces (with a loose top 5cm); and slippery mud and stone roads (with a loose top 2cm, containing a small number of bumps or pits, such as stones, branches, and clods of earth, no larger than 5cm in diameter). Forklifts require manual mechanical operation, resulting in low efficiency.

[0003] Therefore, there is an urgent need for an off-road lightweight electric forklift to meet the demand. Utility Model Content

[0004] According to an exemplary embodiment of the utility model, an off-road portable electric power-assisted forklift is provided to at least partially solve the problems existing in the prior art.

[0005] The invention provides an off-road lightweight electric power-assisted forklift, comprising: a U-shaped frame, wherein two driving wheels are symmetrically provided on the bottom surface of the front end of the U-shaped frame, and a steering wheel is provided on the bottom surface of the middle part of the rear end of the U-shaped frame; a push-pull handle is fixedly connected to the top surface of the rear end of the U-shaped frame, and a hydraulic cylinder is also fixedly connected to the top surface of the rear end of the U-shaped frame, and the top end of the hydraulic cylinder piston is connected to a lifting frame, and the lower end of the lifting frame is connected to two forks, and the two forks and the lifting frame can move up and down in the U-shaped frame under the drive of the hydraulic cylinder; the tires of the driving wheels and the steering wheels are pneumatic tires or rubber tires with tread; and the invention also includes a box body arranged on the outer side of the rear end of the U-shaped frame, and the box body is provided with an electric hydraulic pump and a power battery; the push-pull handle is provided with an integrated console for controlling the hydraulic lifting of the forklift.

[0006] In some embodiments, the driving wheel is driven by a hub motor, and the power battery is electrically connected to the hub motor.

[0007] In some embodiments, the front end of the fork is provided with an inclined surface.

[0008] In some embodiments, the integrated console is provided with a start power switch, a fork raising button, a fork lowering button, a fork stopping switch, a wheel forward button, a wheel backward button, a wheel steering button, and a vehicle brake stop button.

[0009] In some embodiments, the forks are connected to the lower end of the lifting frame in a transverse sliding manner, and the distance between the two forks can be adjusted.

[0010] In some embodiments, the push and pull handles of the forklift are provided with forward and backward lighting lamps, and the brightness can be adjusted to three levels of "bright, medium, and dim".

[0011] In some embodiments, a parking device is provided on the driving wheel to prevent the driving wheel from moving.

[0012] In some embodiments, the wires of the forklift are passed through the entire frame of the forklift to prevent the wires from being exposed and easily damaged.

[0013] In some embodiments, insulating rubber is provided between the integrated console and the push-pull handle to provide insulation and shockproofing while facilitating hand grip.

[0014] The technical effects brought by this utility model are:

[0015] The utility model relates to an off-road lightweight electric power-assisted forklift, which adopts three wheels and adopts pneumatic tires or rubber tires with treads. It can adapt to uneven, bumpy and muddy road conditions and has strong off-road performance. It adopts a single hydraulic cylinder design, and the design of each part is reasonable. The overall design is light and easy to operate. The movement and lifting of the forklift are electrically assisted, which saves manpower and is highly efficient.

[0016] It should be understood that the contents described in the summary of the utility model are not intended to limit the key or important features of the embodiments of the utility model, nor are they intended to limit the scope of the utility model. Other features of the utility model will become easier to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other features, advantages, and aspects of the various embodiments of the present invention will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements. The accompanying drawings are provided for a better understanding of the present invention and do not constitute a limitation of the present invention.

[0018] Figure 1 A left rear side overall schematic diagram of an off-road portable electric power-assisted forklift according to an embodiment of the present utility model is shown;

[0019] Figure 2 A schematic diagram of the left front side of an off-road portable electric power-assisted forklift according to an embodiment of the present utility model is shown. DETAILED DESCRIPTION

[0020] The following describes embodiments of the present invention in more detail with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0021] In the description of the embodiments disclosed in this utility model, the term "including" and similar terms should be understood as open inclusion, that is, "including but not limited to." The term "based on" should be understood as "based at least in part on." The term "one embodiment" or "the embodiment" should be understood as "at least one embodiment." The terms "first," "second," etc. can refer to different or the same objects. Other explicit and implicit definitions may be included below.

[0022] The following will be combined Figures 1 to 2 Exemplary embodiments of the present invention are described in detail.

[0023] In some embodiments, reference Figure 1-2 , provides an off-road lightweight electric power-assisted forklift, comprising: a U-shaped frame 1, two driving wheels 2 are symmetrically provided on the bottom surface of the front end of the U-shaped frame 1, and a steering wheel 3 is provided on the bottom surface of the middle part of the rear end of the U-shaped frame; a push-pull handle 4 is fixedly connected to the top surface of the rear end of the U-shaped frame 1, and a hydraulic cylinder 5 is also fixedly connected to the top surface of the rear end of the U-shaped frame 1, and the top end of the hydraulic cylinder piston is connected to a lifting frame 6, and the lower end of the lifting frame 6 is connected to two forks 7, and the two forks 7 and the lifting frame 6 can move up and down in the U-shaped frame 1 under the drive of the hydraulic cylinder 5; the tires of the driving wheel 2 and the steering wheel 3 are pneumatic tires or rubber tires with tread; it also includes a box body 8 arranged on the outer side of the rear end of the U-shaped frame, and the box body 8 is provided with an electric hydraulic pump and a power battery; the push-pull handle 4 is provided with an integrated console 9 for controlling the hydraulic lifting of the forklift.

[0024] In some embodiments, the driving wheel is driven by a hub motor, and the power battery is electrically connected to the hub motor.

[0025] In some embodiments, the front end of the fork is provided with an inclined surface.

[0026] In some embodiments, the integrated console is provided with a start power switch, a fork raising button, a fork lowering button, a fork stopping switch, a wheel forward button, a wheel backward button, a wheel steering button, and a vehicle brake stop button.

[0027] In some embodiments, the forks are connected to the lower end of the lifting frame in a transverse sliding manner, and the distance between the two forks can be adjusted.

[0028] In some embodiments, the push and pull handles of the forklift are provided with forward and backward lighting lamps, and the brightness can be adjusted to three levels of "bright, medium, and dim".

[0029] In some embodiments, a parking device is provided on the driving wheel to prevent the driving wheel from moving.

[0030] In some embodiments, the wires of the forklift are passed through the entire frame of the forklift to prevent the wires from being exposed and easily damaged.

[0031] In some embodiments, insulating rubber is provided between the integrated console and the push-pull handle to provide insulation and shockproofing while facilitating hand grip.

[0032] When the forklift of the present utility model is in use:

[0033] You can choose to push or pull the vehicle manually, or use the hand-operated start power switch on the integrated console to turn on the power, operate the wheel forward button, wheel reverse button, wheel turn button, and vehicle brake button to move or stop the vehicle, operate the fork up button, fork down button, and fork stop switch to control the raising and lowering of the fork to pick up and unload goods; when parking, you should operate the parking device on the drive wheel to prevent the drive wheel from moving.

[0034] Other optimal parameters of the forklift of this utility model:

[0035] 1. Complete machine: The complete machine must weigh no more than 100kg, have a total length (including forks) no greater than 1.8m, a net width no greater than 1.2m, a net height no greater than 1.3m, and a clearance height of no less than 5cm.

[0036] 2. Load capacity. The chassis and machine body can withstand the weight of the entire machine, with a rated load of no less than 800kg. The length of the forks shall be no less than 1070mm, the load center shall be 600mm, the minimum clearance of the forks from the ground when lowered shall be no more than 10mm, the maximum clear height of the forks when raised shall be no less than 500mm, the maximum lifting speed of the forks shall be no less than 120mm / s, and the maximum lowering speed of the forks shall be no less than 180mm / s.

[0037] 3. Power and drive. The height of the handrail from the ground is 1.25 meters. The electric power adopts one power lithium battery, each battery capacity is not less than 30Ah, the rated drive power is not less than 2.5kW, the power of each travel motor is not less than 1500W, the response time from starting the power to starting work is not more than 0.5s, the number of mains power charges is not less than 2000 times, the maximum time for a single mains charge is not more than 6 hours, and a charger is standard. When the lithium battery is fully charged and driven purely by electricity (all under full load): sustainable driving of not less than 10km or continuous work of not less than 6 hours, the maximum forward walking speed is 2.0m / s, the maximum backward walking speed is 1.2m / s, the maximum climbing grade is not less than 26% (15°), the maximum turning radius on the spot is not more than 0.5m, and emergency braking can be completed within 0.2s in an emergency.

[0038] 4. Auxiliary subsystem: All lights are LED lights, which are efficient and energy-saving.

[0039] The above specific embodiments do not limit the scope of protection disclosed herein. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model are intended to be within the scope of protection of this utility model.

Claims

1. An off-road lightweight electric power forklift, characterized in that: include: The U-shaped frame has two driving wheels symmetrically provided on the bottom surface of the front end of the U-shaped frame, and a steering wheel is provided on the bottom surface of the middle part of the rear end of the U-shaped frame; a push-pull handle is fixedly connected to the top surface of the rear end of the U-shaped frame, and a hydraulic cylinder is also fixedly connected to the top surface of the rear end of the U-shaped frame, and the top end of the hydraulic cylinder piston is connected to a lifting frame, and the lower end of the lifting frame is connected to two forks, and the two forks and the lifting frame can move up and down in the U-shaped frame under the drive of the hydraulic cylinder; the tires of the driving wheels and the steering wheels are pneumatic tires or rubber tires with tread; it also includes a box body arranged on the outer side of the rear end of the U-shaped frame, and the box body is provided with an electric hydraulic pump and a power battery; the push-pull handle is provided with an integrated console for controlling the hydraulic lifting of the forklift.

2. The off-road portable electric power-assisted forklift according to claim 1, characterized in that: The driving wheel is driven by a hub motor, and the power battery is electrically connected to the hub motor.

3. The off-road portable electric power-assisted forklift according to claim 1, characterized in that: The front end of the fork is provided with an inclined surface.

4. The off-road portable electric power-assisted forklift according to claim 1, characterized in that: The integrated console is provided with a start power switch, a fork raising button, a fork lowering button, a fork stopping switch, a wheel forward button, a wheel backward button, a wheel steering button, and a vehicle brake stop button.

5. The off-road portable electric power-assisted forklift according to claim 1, characterized in that: The forks are connected to the lower end of the lifting frame in a transverse sliding manner, and the distance between the two forks can be adjusted.

6. The off-road portable electric power-assisted forklift according to claim 1, characterized in that: The push and pull handles of the forklift are provided with forward and rearward lighting lamps, and the brightness can be adjusted in three levels: bright, medium and dim.

7. The off-road portable electric power-assisted forklift according to claim 1, characterized in that: A parking device is provided on the driving wheel to prevent the driving wheel from moving.

8. The off-road portable electric power-assisted forklift according to any one of claims 1 to 7, characterized in that: The electric wires of the forklift are passed through the entire frame of the forklift to prevent the electric wires from being exposed and easily damaged.

9. The off-road portable electric power-assisted forklift according to any one of claims 1 to 7, characterized in that: Insulating rubber is provided between the integrated console and the push-pull handle, which plays the role of insulation and shockproof and is convenient for hand holding.

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