Hand trolley

A truck and wheel technology, applied in the field of trucks, can solve the problems of difficult steering operation, high labor intensity, inflexible operation, etc., and achieve the effects of easy and convenient steering control, reduced labor intensity, and flexible control.

Inactive Publication Date: 2011-11-16
王金虎
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual use of this four-wheel truck, because the height of its wheel axle is fixed, and the size of the wheel is also fixed, therefore, in order to facilitate this traditional four-wheel truck to be applicable to undulating roads, often The height of the wheels is designed to be very high to prevent undulating roads from hitting the bottom of the frame, but for some roads with little undulations or flat roads, using this four-wheel truck to carry goods, workers need to place Moving the goods to a very high frame requires high labor intensity and low handling efficiency
In addition, because the existing four-wheel trucks are generally not equipped with universal joints for steering, the steering needs to be carried out by workers to align the front of the truck, and the operation is very inflexible. When heavy, it will be very difficult to steer

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0017] Such as Figure 1-2 The specific embodiment of the present invention shown includes vehicle frame 1, and described vehicle frame 1 is provided with four wheel mounting frames 2 distributed in a rectangular shape at four points, and each wheel mounting frame 2 includes a top beam 21, so The above-mentioned top beam 21 is liftably provided with a wheel elevating rod 22, and the wheel elevating rod 22 is fixedly provided with a wheel rotating shaft 23, and a wheel 24 is rotatably mounted on the wheel rotating shaft 23. In addition, in the present embodiment, any two left and right relative wheel mounting frames 2 are selected on the four wheel mounting frames 2, and the wheel rotating shaft 23 on the wheel mounting frame 2 is fixedly provided with a Inserting rod 25, the vehicle frame 1 is provided with a left and right moving rod 3 movable left and right, the length of the left and right moving rod 3 is adapted to the distance between two left and right relative wheel mou...

Embodiment 2

[0022] The difference between this embodiment 2 and embodiment 1 is that the left and right movement control of the left and right moving rod 3 is realized in this way: the left and right moving rod 3 is provided with bar teeth 33, and the described vehicle frame 1 is provided with There is a steering control wheel interlocked with the bar teeth 33 . Through the meshing transmission of the steering control wheel and the bar teeth, the left and right moving rod 3 is driven to move left and right, thereby conveniently controlling the steering of the truck. In practical applications, the steering control wheel can be coordinated with mechanisms such as motors, so as to realize the electrical control of the present invention. Since the meshing of the steering control wheel and the rack teeth 33 is a conventional technique well known to those skilled in the art, it will not be described in detail here.

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PUM

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Abstract

The invention discloses a hand trolley, which comprises a frame, four wheel installation racks are rectangularly arranged on the frame, and each wheel installation rack comprises a top beam; the top beam is movably provided with a wheel lifting rod, the wheel lifting rod is fixedly provided with a wheel shaft, and wheels can rotatablely be arranged on the wheel shaft. The invention has the advantage of implementing the arbitrary adjustment of the height of the wheel so as to adapt to different road conditions, thereby reducing the labor intensity of workers; in addition, the hand trolley of the invention is easy and convenient in steering control and flexible in control.

Description

technical field [0001] The invention relates to a transportation tool, in particular to a transport vehicle. Background technique [0002] Existing four-wheel trucks are widely used in places such as airports, wharves, and railway stations as short-distance cargo manpower transport tools. Existing four-wheel truck, its mechanism generally comprises vehicle frame, two front and rear wheel shafts that are suspended at the bottom of the vehicle frame, and the two ends of every wheel shaft are provided with wheels. In the actual use of this four-wheel truck, because the height of its wheel axle is fixed, and the size of the wheel is also fixed, therefore, in order to facilitate this traditional four-wheel truck to be applicable to undulating roads, often The height of the wheels is designed to be very high to prevent undulating roads from hitting the bottom of the frame, but for some roads with little undulations or flat roads, using this four-wheel truck to carry goods, worker...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62B3/02
CPCB62B3/1476B62B2206/06B62B2301/10B62B3/02
Inventor 王金虎
Owner 王金虎
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