Jacking mechanism and trolley using same

Abstract

The invention discloses a jacking mechanism which comprises a jacking rod, two jacking oil cylinders and multiple vacuum suction cups. The two ends of the jacking rod are fixedly connected with the jacking oil cylinders respectively, and the vacuum suction cups are fixed on the jacking rod and used for adsorbing a waterproof material. The invention further discloses a trolley with multiple sets of the jacking mechanisms. According to the jacking mechanism and the trolley using the same, when the waterproof material is jacked, the waterproof material can be automatically jacked into place, automatically form the sag and be automatically adsorbed on the jacking mechanism, and therefore the purpose that a roll of the waterproof material is laid at a time is achieved.

Description

technical field [0001] The invention relates to the field of special mechanical equipment for tunnels, in particular to a jacking mechanism and a trolley using the jacking mechanism. Background technique [0002] At present, with the rapid development of China's railway, highway and other transportation industries, especially the major achievements in the construction of tunnels such as high-speed railways and highways, the rapid improvement of tunnel construction design and technology has led to the engineering structure of mountain tunnels. The scale of construction is unprecedented. The tunnel has a tendency to grow larger. It has changed the concept that people in the past often bypassed the line because the line encountered a mountain, shortened the length of the tunnel as much as possible or did not build the tunnel. Adopting the method of removing the curvature and straightening leads to the growth of the tunnel, which to some extent shows the development of tunnel co...

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Problems solved by technology

However, in the actual application process, this patent still has the following defects: 1. The waterproof material in the roll shape is first manually transported up and down on the walking trolley, and then a large amount of manpower and material resources and a loader are used to cooperate with the operation to remove the waterproof material. The materials are spread out and pasted to the initial support surface. This series of construction methods are difficult to meet the construction requirements and speed up the construction progress. At the same time, due to the cumbersome construction technology, poor construction environment in the tunnel, high temperature, and large dust, The low degree of mechanization increases the physical exertion of operators, increases the labor intensity of operators, and also increases the difficulty of construction coordination, which restricts the laying efficiency and construction progress of waterproof materials. In such an environment, the laying of waterproof materials is prone to occur. Poor quality, unguaranteed welding quality, increased chance of water leakage, low construction efficiency, and quality risks such as insufficient welding length, damage, and irregular hanging of waterproof materials during the laying process

2. At present, most of this type of trolley is only suitable for the laying of waterproof materials with a width of 3 to 4 meters. They are all mechanically assisted by manual deployment, manual lifting in place, and manual dragging to form a sag. Human factors have a great impact on the construction quality, and it is difficult to guarantee The formation of sag requirements does not solve the waterproof board sag formation process and waterproof board jacking process well, and there is no automatic control method, and at the same time restricts the popularization and use of 6-7m wide waterproof materials

3. This type of trolley can only be used for laying waterproof materials, and cannot be used for laying steel bars. Additional professional equipment is required when laying steel bars, and its scope of application is poor

4. There is no locking device for the operation after the trolley is raised. Once an accident occurs, it will cause serious safety accidents.

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