Early dismounting device for building formwork

Abstract

The invention relates to an early dismounting device for a building formwork. A matching member comprises a matching head and a matching cylinder, wherein the matching head is connected to the upper part of the matching cylinder, and an adjusting screw passes through the matching head and the matching cylinder to be sleeved with the matching member. A support member comprises a support cylinder. The support cylinder and the adjusting screw are in threaded connection. The inner diameter of the support cylinder is greater than or equal to the outer diameter of the matching cylinder. The outer periphery of the support cylinder is provided with a stopping protrusion. A first switching port is formed in one inner side of a switching body. A second switching port is formed in the other inner side of the switching body. The first switching port and the second switching port communicate with each other. The inner diameter of the first switching port is less than the inner diameter of the second switching port. The inner diameter of the first switching port is greater than the outer diameter of the adjusting screw. A switching member is disposed on a joint of the matching cylinder and the support cylinder through the first switching port, and sleeves the periphery of the support cylinder through the second switching port. The early dismounting device can dismount a crossbar without dismounting a vertical pole device, thereby improving the construction efficiency of the building formwork.

Description

technical field [0001] The invention relates to a building component, in particular to an early dismantling device for a building formwork. Background technique [0002] The building formwork is a temporary support structure, which is manufactured according to the design requirements, so that the concrete structure and components are formed according to the specified position and geometric size, maintain their correct position, and bear the self-weight of the building formwork and the external load acting on it. Most of the existing formwork support systems use the combination of rod-type steel pipes and fasteners. There are two problems in using this formwork support system: On the one hand, when supporting the main beam and secondary beam of the floor, the vertical pole cannot be connected with other structures. The vertical poles form a horizontal connection, and only the traditional steel pipe fasteners can be used to connect the crossbars between the vertical poles, and...

AI Technical Summary

Problems solved by technology

Most of the existing formwork support systems use a combination of rod-type steel pipes and fasteners. There are two problems in using this formwork support system: On the one hand, when supporting the main beam and secondary beams of the floor, the vertical poles cannot be connected with other structures. The vertical poles form a horizontal connection, only the traditional steel pipe fasteners can be used to connect the horizontal bars between the vertical poles, and then place the wooden squares supporting the formwork on the horizontal bars.

This method not only wastes manpower and material resources, but also has great potential safety hazards.

On the other hand, in some formwork systems, adjustable screw rods, jacking brackets, and top plates are socketed on the vertical rods to place formwork wood. The degree of freedom of the contact surface between the pipe and the nut is large, and under certain lateral force conditions, it may cause the displacement of the wood on the casing and the buckle, and even affect the stability of the screw jacking and the top plate

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