A funnel type sand box unloading device and method

Abstract

The invention belongs to the technical field of steel structure buildings, and particularly relates to a funnel type sand box unloading device and method which are used for unloading temporary supporting frames of bearing steel components. Four bolts in a horizontal release part need to be unscrewed before unloading is started, and horizontal displacement of the steel components in the unloading process is effectively released through sliding between a stainless steel plate and a slide plate. The unloading device is novel in concept, can conveniently unload the temporary supporting frames of the steel structure, and has the advantages of being good in sealing performance, capable of releasing horizontal displacement of supporting points, convenient to operate, high in safety, and the like.

Description

technical field [0001] The invention belongs to the technical field of steel structure buildings, and in particular relates to a funnel-type sand box unloading device and method. Background technique [0002] After the main structure of the steel structure is installed to form a space stable system and all welding and connection work is completed, it is often necessary to unload the temporary support frame. [0003] At present, there are three ways to unload the steel structure support frame: jack unloading, rigid support direct cutting method unloading and sand box unloading. Sand box unloading, as a relatively traditional unloading method, is mostly used in bridge engineering, and less used in steel structure engineering. The main reasons are as follows: 1. The traditional sand box is often made rough, and the inner cylinder and The gaps between the outer cylinders are large, and the waterproof effect is poor, which can easily cause the sand to agglomerate due to moisture...

AI Technical Summary

Problems solved by technology

Sand box unloading, as a relatively traditional unloading method, is mostly used in bridge engineering, and less used in steel structure engineering. The main reasons are as follows: 1. The traditional sand box is often made rough, and the inner cylinder and The gaps between the outer cylinders are large, and the waterproof effect is poor, which can easily cause the sand to agglomerate due to moisture, so that it cannot be discharged freely; 2. The side wall of the traditional sand box is usually provided with two or four sand outlets to ensure that the sand The symmetrical discharge of sand in the box, and too many sand outlets greatly increase the difficulty of on-site control; 3. The height of the traditional sand box is low, and the effective unloading stroke is small, which is difficult to meet the actual unloading requirements of the steel structure; 4. When the structure is unloaded When there is a large horizontal displacement, the traditional sand box is likely to cause jamming of the inner and outer cylinders, thus affecting the normal unloading operation

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