Building formwork pull rod

Abstract

The invention discloses a building formwork pull rod which comprises a pull rod body arranged between two building formworks. The pull rod body comprises a rod body and connecting portions arranged at two ends of the rod body respectively, cross section of the rod body is round, diameters of sections of two ends of the rod body are unequal, and the rod body forms a conical structure, with a certain oblique angle, similar to die drawing design in a die. After concrete is solidified, the pull rod body can be taken out by knocking from one end smaller in diameter to the other end, larger in diameter, of the rod body, so that great convenience in taking out is realized; sleeving of plastic pipes is not needed, so that a lot of plastic pipes are saved, mounting process of the pull rod is simplified, and cost is lowered greatly; a contact face of the pull rod and a wall is smooth, so that the building formwork pull rod is good in sealing effect during repairing and less prone to water leaking.

Description

technical field [0001] The invention relates to a pull rod used in building templates. Background technique [0002] With the continuous development of the construction industry, the proportion of cast-in-place concrete structures is increasing day by day, and labor costs are increasing. The traditional wooden formwork has low strength and can be turned around less frequently, requiring a large amount of wood and human resources; the steel formwork is heavy. It is difficult to remove the formwork, and the construction requires the assistance of mechanical equipment. Aluminum alloy building formwork is a new type of building formwork, which has the advantages of light weight, many turnover times, and low turnover costs. Aluminum alloy formwork usually consists of horizontal system, frame system, support column, support keel, building formwork, etc. Building formwork is usually used for pouring walls and floors, usually two-sided building formwork is used together, except that...

AI Technical Summary

Problems solved by technology

Aluminum alloy formwork usually consists of horizontal system, frame system, support column, support keel, building formwork, etc. Building formwork is usually used for pouring walls and floors, usually two-sided building formwork is used together, except that the two-sided building formwork is fixed through the frame system In addition, tie rods need to be installed inside the two building formworks to further strengthen the two building formworks to prevent the concrete from expanding and deforming. After the concrete is cured, the tie rods need to be taken out. However, in the actual process, the building formwork system is usually used in the construction of large floors, which requires a lot of tie rods, which causes a lot of waste of plastic pipes, and the sleeve work is cumbersome, which increases the cost

Because the hole needs to be repaired, if the cement is in contact with the plastic pipe in the past, the contact surface may not be good. This may cause unevenness or water leakage.

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