Liftable hand propelled carrying vehicle

A truck, hand-push technology, applied in the direction of the hoisting device, etc., can solve the problems of the pulling rope detachment, poor safety, stuck pulley, etc., and achieve the effect of good safety performance and good chain strength.

Inactive Publication Date: 2009-08-12
刘清华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problems in the prior art that the traction rope is easy to break, the safety is poor, and the traction rope is easily disengaged from the pulley and the pulley is stuck, the present invention provides a new type of lifting and lowering hand-push transport with high safety car

Method used

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  • Liftable hand propelled carrying vehicle
  • Liftable hand propelled carrying vehicle
  • Liftable hand propelled carrying vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment one: see attached figure 1 , attached figure 2 , attached image 3 As shown, a liftable trolley includes a vertical vehicle frame 1, the vertical vehicle frame 1 is composed of two hollow columns 2, and the upper, middle and lower points are connected between the two columns 2 The closed-loop frame formed by the top beam 21, the middle beam 22, and the bottom beam 23 of the hollow control, and the hollow tube lumens of the two columns 2, the middle beam 22, and the bottom beam 23 are connected to form a square closed-loop passage. The bottom of the frame is provided with two coaxial walking wheels 3 (it can also be four four corners arranged walking wheels 3); the upright vehicle frame 1 is provided with a shelf 4 forward, and the shelf 4 is opposite. The upright vehicle frame 1 is slidably connected up and down. A lifting and suspending mechanism is provided between the upper part of the vehicle frame 1 (specifically, the center beam) and the shelf 4 . ...

Embodiment 2

[0044] Embodiment two: see attached figure 1 And attached Figure 4 As shown, a liftable hand-push truck includes a vertical frame 1, a shelf 4, a walking wheel 3, a lifting suspension mechanism, a chain tensioning storage mechanism, and a pull-back stabilization mechanism, which is the same as that of Example 1. The difference is that the opposite fixed ends of the first extension spring section 18 and the second extension spring section 19 are directly fixed on the upright frame 1, and each is an independent tension spring. Others are the same as those in Embodiment 1, and will not be repeated here.

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Abstract

The invention provides a lifting hand-pushing van, comprising a vertical frame which includes an enclosed frame formed by hollow pipes; the bottom of the frame is provided with a walking wheel; the vertical frame is connected with an object arranging frame in a sliding way; a lifting hoisting mechanism is arranged between the upper part of the vertical frame and the object arranging frame; the lifting hoisting mechanism consists of a pulley block, a traction rope, a mainshaft and a reverse rotary self-locking device. The invention is characterized in that the traction rope is a chain; the last crown block of the pulley block is a drive chain wheel which is fixedly connected with the mainshaft which is connected with a power source by the reverse rotary self-locking device; the invention also comprises a chain tensioning and intake mechanism consisting of a first cable wire, a first guide wheel, a first movable wheel and a first pulling spring section, and a backing tensile stabilizing mechanism consisting of a second cable wire, a second guide wheel, a second movable wheel and a second pulling spring section; the invention has the advantages of good strength of chain, being not easy to be broken or be disconnected from the wheel, reliable operation, and high safety.

Description

technical field [0001] The invention relates to a hand-push type transport vehicle, in particular to a hand-push type transport vehicle with a liftable shelf. Background technique [0002] Hand truck is the most common means of transportation in people's daily life and various industrial production activities. It is simple in structure and low in cost, and is especially suitable for carrying goods of several hundred kilograms in a short distance. [0003] The shelves of the earlier hand trucks were all fixed and could not be raised and lowered. When loading and unloading goods, manual lifting was required. When the destination of loading or unloading goods was higher than the shelf, loading and unloading was even more difficult. Time-consuming and labor-intensive, many workers are required to cooperate with the operation, and the work efficiency is low. [0004] Therefore, a hand truck with a lifting device appeared later, so that the shelf can be lifted up and down, which...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): B66F9/06B66F9/20B66F9/08
Inventor刘清华刘潇和
Owner刘清华