Multipurpose load lifting work platform or/and composite bridge structure

Abstract

The present invention discloses a multi-purpose load lifting work platform or / and composite bridge structure, comprising a framework, at least one work platform, a drive mechanism, and an electrical control devices. One end of the pole-shaped structure is connected with the framework in a movable manner, and the other end of the pole-shaped structure is connected with the work platform in a movable manner, the work platform can run with the pole-shaped structure together. The work platform can run in a curve track relative to the framework by power, and can stop at any position in running track. This invention can provide two platforms working coordinately or a single platform working independently. The working area of the two platforms greatly exceeds that of the existing common equipment with a single platform. It can load bulky objects without sway, and can also be used as composite or assembly bridge structure.

Description

FIELD OF THE INVENTION[0001]The invention relates to a multipurpose load lifting work platform, which can be also used as a modular structure for assembling a bridge. The multipurpose load lifting work platform is applicable to the following fields: crane, load lift, elevator, stage equipment, movable foundation for mobile house, stereoscopic parking equipment, stereoscopic storing and logistics equipment, carrying equipment, and bridge structure.BACKGROUND OF THE INVENTION[0002]Most of current cranes, lifts, elevators or other carrying equipment works with the track of vertical lifting, the loads lifted sway back and forth and the horizontal stability of the load is poor. Also, only one work platform is provided. These defects result in their limited scope of use. In addition, each of the equipment consumes a considerable amount of energy during operation.[0003]On the other hand, in bridge construction, modular manufacturing and assembly have been achieved, but still need bridge ma...

AI Technical Summary

Benefits of technology

[0006]A new type blocking device with a spring button can be assembled optionally on the equipment. It can prevent a load from sliding down during the work of the equipment. In addition, wheels can be optional on four corners of the base of the framework of the equipment such that the equipment has mobility and can be moved to anywhere. Pickets are arranged inside the four columns and can be used for fixing on loose and soft foundations (such as outdoor sand grounds).

[0008]When operating one or more inventive equipment, the work platforms of every equipment are stayed at or close to the same horizontal position (a certain height difference between the work platforms is permitted) and the equipment are connected from the front to the end, the slope is arranged at both ends, a bridge can be built quickly, as shown in FIG. 11. Of course the inventive equipment can also be combined with the known bridge structure to build a new bridge, as shown in FIG. 11-1. A cushion layer of elastic materials can be laid at the joint to reduce bumping on road surface. A certain height difference between the platforms is permitted. In addition to having a level surface, the platform can also be made in concave-shape or bending-surface platform according to actual needs. By using such a work platform as the bridge structure, both assembly and disassembly of the bridge can be done easily. As the degree of freedom between structures of said equipment is high, the anti-shock performance is good.

[0015]For the different types of the pole-shaped structures, two types of driven and driving aided mechanisms are provided. Any one of two types of the driven and driving aided mechanisms can be used in the inventive equipment independently, and they can also replace each other or be combined together in the equipment, or even be used as one part of the structure of each type in the equipment. If two types of mechanisms are used in combination, more safe transmission guarantee will be provided to improve the work efficiency.

[0019]Another advantage of selecting the Type 2 is that this type can reduce the mechanical strength requirements of pole-shaped structure, and reduce the sectional area of pole-shaped structure, and save material and cost. The bracing of the pole-shaped structure can be omitted. The disadvantage of Type 2 is that Type 2 is more complicated than Type 1. The figures here are simplified to briefly explain the principles, the parts of the driven and driving aided mechanism are shown only in FIG. 1 (the Type 1 and Type 2 driven and driving aided mechanisms are used in combination) and FIG. 2-15 (Type 2 driven and driving aided mechanism is independently used), and the driven and driving aided mechanism can be also mounted on corresponding positions of other shown figures.

[0020]In Type 1 and Type 2, there is a combined pattern of pole-shaped structure. That is, a longer pole-shaped structure replaces two adjacent pole-shaped structures in the middle of the framework. This pole-shaped structure has one hole in the middle of the structure for installing, both ends of the pole-shaped structure hinge with two work platforms, as shown in FIGS. 2-26, 2-27, 2-28, 2-29 and 233. This combined pattern reduces the number of the pole-shaped structures, but it needs high material strength and structural strength for the pole-shaped structure. The working state is shown in FIGS. 233 and 333.(5) The electrical control device, comprising: a digital circuit central control box 5 including a chip, a relay, a control switch, an adjustable resistor, a transformer, a travel switch and the like. The control switch can control the electric motor to rotate positively and reversely and to stop; the travel switch and the relay can control the work platform to stop on the determined position.(6) The optional automatic obstacle monitoring device, comprising: wireless transmitting and receiving devices 6 mounted on the front and rear ends of the upper and lower work platforms, as shown in FIG. 7.

[0021]When an obstacle is identified within the predetermined distance, such as 1.5 m, a signal is sent to stop the running equipment, thus preventing the work platform from colliding with the surrounding obstacles or persons during the running of the equipment.(7) The wheels 7 can be assembled optionally on four corners of the base of the framework of the inventive equipment such that the inventive equipment has mobility. When equipped with a car chassis and power, the equipment can be moved to anywhere like a car, to optimize the reasonable allocation of equipment resources, as shown in FIG. 8. Pickets 8 can be optional inside the four columns and are used for the fixing on the loose and soft foundations (such as outdoor sand grounds), as shown in FIG. 8.(8) The blocking device 9 can be assembled optionally to prevent objects parked on the work platform from sliding down. The blocking device can be also used separately on the ground of a parking lot as a parking bay lock. The blocking device, comprising an inwardly bent angle steel 92 which is provided with a hole 91 on the particular position of the side surface and has a generally inversed shaped section, a square tube 93, a spring button 95 with a keyhole 94 at its head and an insert tube at its rear, a shaft 97 with a wheel 96, a protective edge 98 having a rotary axis, and a lifting handle 99, as shown in FIGS. 9-1 and 9-2.

Problems solved by technology

Most of current cranes, lifts, elevators or other carrying equipment works with the track of vertical lifting, the loads lifted sway back and forth and the horizontal stability of the load is poor.

These defects result in their limited scope of use.

In addition, each of the equipment consumes a considerable amount of energy during operation.

On the other hand, in bridge construction, modular manufacturing and assembly have been achieved, but still need bridge machine or crane hoisting modular construction for accurate installation, and need a large number of artificial precision operations, and need a long period time of building.

Furthermore, there are problems which remain to be solved in bridge construction, including long construction period and high degree of difficulty in construction and dismantling.

Images