Internal Fixation Device for Embedded Casing and Its Construction Method

Abstract

The invention belongs to the field of concrete construction, and in particular relates to an internal fixing device for a pre-embedded casing and a construction method thereof. The device is composed of two parts: a fixed box body and a fixed base; the fixed box body is provided with a circular tube; the fixed base is provided with a circular tube that can be inserted into the fixed box body round tube. The installation and disassembly of the device are convenient and fast, and there is no need to wrap tapes for sealing, and do not need to grind iron nail heads, and can effectively protect the pre-embedded waterproof casing.

Description

technical field [0001] The invention belongs to the technical field of concrete construction, and in particular relates to an internal fixing device for a pre-embedded casing and a construction method thereof. Background technique [0002] Now on the construction site, bathrooms, balconies, such as toilets, wash basins, floor drains, etc., are buried with PVC embedded casings in the concrete. Specifically, the two ends of the PVC embedded casings used for drainage are first taped. Wrap it around to prevent concrete from being poured into the concrete; then fix the embedded casing on the formwork with iron nails, which not only saves trouble and time, but also avoids leakage when the concrete is poured for the second time in the future; but in this way It has the following disadvantages. Fix the embedded casing directly on the formwork with iron nails. When the formwork is removed, the base of the embedded casing will be damaged with the pulling force of the formwork, and som...

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Problems solved by technology

[0002] Now on the construction site, bathrooms, balconies, such as toilets, wash basins, floor drains, etc., are buried with PVC embedded casings in the concrete. Specifically, the two ends of the PVC embedded casings used for drainage are first taped. Wrap it around to prevent concrete from being poured into the concrete; then fix the embedded casing on the formwork with iron nails, which not only saves trouble and time, but also avoids leakage when the concrete is poured for the second time in the future; but in this way It has the following disadvantages. Fix the embedded casing directly on the formwork with iron nails. When the formwork is removed, the base of the embedded casing will be damaged with the pulling force of the formwork, and some casings will be completely torn After the formwork is removed, the iron nail heads exposed outside the concrete have to be worn off; it is sealed with tape, and the tape is broken after a long time. When the internal wall is painted, the embedded casing will be filled with concrete slurry. When installing the pipe, the inner wall of the pipe must be cleaned; in addition, some of the nozzles of the embedded casing are exposed, which are easily damaged by external forces such as steel pipes, and some even become waste pipes.

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