Wall-penetrating screw sleeve with internal supporting effect for construction carpenter

Abstract

The invention discloses a wall-penetrating screw sleeve with an internal supporting effect for a construction carpenter. A sleeve body is of a hollow cylinder structure. First reinforcing ribs are arranged on the sleeve body. Second reinforcing ribs are arranged between the first reinforcing ribs. Seal rings are arranged at the two ends of the sleeve body correspondingly. Third reinforcing ribs are arranged on the outer side walls of the seal rings. Each seal ring comprises an outer wall ring and an inner wall ring. Fourth reinforcing ribs are arranged between the outer wall rings and the inner wall rings. By designing the horn-mouth-shaped multi-layer seal rings at the two ends, concrete grout is effectively prevented from entering a pipe cavity, the protection range of drilled holes of timber formworks is enlarged, meanwhile if sealing is not tight, concrete mortar can be effectively prevented from entering an inner cavity, the error rate of pores of the formworks on the two sides isincreased, and a screw can be better drawn out; and meanwhile, the longitudinal reinforcing ribs and the annular reinforcing ribs are designed in the device, so the longitudinal formwork pressure resistance and transverse concrete impact force resistance are effectively improved, and the strength of a pipe wall is increased.

Description

technical field [0001] The invention relates to the construction field of building carpentry, in particular to a wall-penetrating screw sleeve for building carpentry with internal support function. Background technique [0002] Shear wall is a commonly used structure in industrial and civil buildings. It is a wall made of concrete, with a steel frame structure inside. It is a strong load-bearing wall and an indispensable and important structure in buildings, especially for middle and high-rise residents. Architecturally more. When building a shear wall, the bundled steel bars must be placed in the middle, and the two sides are erected and fixed with wooden formwork to form a concrete pouring cavity. This requires internal fixation of the wooden formwork to ensure the standard thickness of the wall. At the same time, external fixation should be carried out on the wooden formwork to ensure that the formwork will not expand when concrete is poured. [0003] There are currentl...

AI Technical Summary

Problems solved by technology

[0006] 1) The cost is high; the amount used is huge and the price of cement support strips plus plastic sleeves is not low

[0007] 2) Labor-intensive: At the beginning of the vertical formwork, it is necessary to place and bind the cement support strips and wear plastic pipes; after the concrete is poured, it is difficult to remove the stubble of the plastic pipes left outside the wall when the formwork is removed. The speed is slow and labor-intensive; at the same time, after the formwork is removed, special personnel must be used to remove the stubble of the plastic pipe;

[0008] 3) It greatly affects the quality of the shear wall: due to the extensive use of low-grade cement support bars, the shear wall is covered with honeycomb-shaped quality hazards, which seriously affects the building quality

[0011] 1) It is not easy to control the length and size when cutting plastic pipes. If it is too long, it exceeds the specified size of the mold cavity and cannot be used; if it is too short, it will not provide internal support for the pipe, and the concrete slurry will be poured into the pipe, causing Screw scrap

This will not only cause the loss of the screw, but also troublesome demolition, and the follow-up treatment of the screw left on the wall is required, which is labor-intensive and time-consuming;

[0012] 2) The plugs at both ends are easy to fall off and skewed, resulting in poor sealing, concrete slurry poured into the pipe, resulting in the scrapping of the screw, causing greater losses, and it is troublesome to remove the formwork, and the screw left on the wall needs to be processed later, which is labor-intensive time-consuming;

[0013] 3) The simple plastic pipe body is too thin to effectively support the longitudinal pressure of the formwork and the lateral impact force during concrete pouring, and is easily damaged;

[0014] 4) It is troublesome during construction, and the plugs at both ends should be put on one by one during installation, and be very careful when fastening the formwork to prevent the plugs from being knocked off;

[0017] 1) The cut-off requirements for plastic pipes are very high, and long, short, skewed, and slag-dropped cuts cannot be used, which is very difficult to grasp;

[0018] 2) High cost;

[0019] 3) The simple plastic pipe body is too thin to effectively support the longitudinal pressure of the formwork and the lateral impact force during concrete pouring, and is easily damaged

[0020] 4) Since it is a hard plastic tube and the inner wall of the formwork is ring-shaped to bear the huge pressure of the wood formwork, it is easy to cause damage to the wood formwork and drilling holes

Images