CN204435869U - The outspoken form removal system of floor slab preformed hole - Google Patents

Abstract

A quick-release formwork system for a reserved hole in a floor, including a mold pipe, a positioning piece and a mold pipe cover plate. There are vertical joints along the pipe body, which are divided into inner joints and outer joints. The embedded pipes are overlapped inwardly along the pipe wall from the inner joints, and the outer hoop mold tubes are butted at the outer joints, and Utilize the elasticity generated by the outer joint to realize the ferrule on the outside of the embedded pipe, the sleeve positioning vertical bar is welded to the center of the sleeve positioning horizontal plate, and the two ends of the sleeve positioning horizontal plate are fixed on the bottom formwork of the floor by screws. Sleeve pipe positioning vertical rod passes through the center of mold pipe cover plate, and nut is threaded with the upper part of sleeve pipe positioning vertical rod, so that mold pipe is clamped between floor bottom mold and mold pipe cover plate. The utility model can well ensure that the position of the reserved hole is accurate, the installation is simple and the dismantling is convenient, the material cost is saved, the process is simple, the labor is saved, and the reserved holes with different pipe diameters can be reused.

Description

Floor reserved opening quick release formwork system

technical field

The utility model belongs to a building construction formwork system, in particular to a quick-dismantle mold used for a reserved hole in a floor slab.

Background technique

Floor slab reserved holes are an important link in floor slab construction. The quality of the reserved holes is directly related to the installation quality of plumbing pipes, and at the same time has a certain impact on the overall effect of the building's finished surface.

At present, most of the reserved hole sleeves are made of circular wooden cylinders as the mold for the reserved holes. When using it, it is not only necessary to lay out wooden corrugations in the cylinder, fill it with sand, the process is complicated and difficult to operate, and in the process of concrete pouring, wooden The formwork is easily deformed. After the concrete has finally set and reached the strength of formwork removal, it is very laborious to remove the reserved cavity formwork. Most of the formwork needs to be destroyed and removed, and it cannot be reused later, which increases the cost of production.

Utility model content

The purpose of this utility model is to provide a quick-release formwork system for reserved openings in floor slabs. It is necessary to solve the technical problems that the existing wooden molds have complicated procedures and are difficult to operate, and the wooden formwork is easy to be deformed and difficult to disassemble. .

In order to achieve the above object, the utility model adopts the following technical solutions:

A quick-release formwork system for a reserved hole in a floor, including a mold pipe, a positioning piece, and a mold pipe cover plate. The bottom of the mold pipe stands on the bottom mold of the floor. It is an outer hoop mold tube and an embedded tube, both of which have vertical joints along the tube body, which are divided into inner joints and outer joints, and the inner joints are folded inward along the pipe wall from the inner joint The outer hoop mold tube is butted at the outer joint, and the outer side of the embedded pipe is realized by using the elasticity generated by the outer joint, and the two joints are staggered;

The positioning member is in an inverted T shape, including a casing positioning horizontal plate, a casing positioning vertical rod and a nut. The casing positioning vertical rod is welded to the center of the casing positioning horizontal plate, and the two ends of the casing positioning horizontal plate are screwed Fixed on the bottom formwork of the floor, the mold pipe is arranged in the center on the outside of the positioning part, the casing positioning vertical rod passes through the center of the mold pipe cover plate, and the nut is threaded with the upper part of the casing positioning vertical rod to make the mold The tubes are clamped between the floor bottom form and the molded tube cover.

The casing positioning vertical rod can be a pull screw or a top sheathed steel bar.

The mold tube cover plate may be a multi-layer board.

Compared with the prior art, the utility model has the following characteristics and beneficial effects:

The utility model can firstly ensure that the position of the reserved hole is accurate, and through the inverted T-shaped positioning part fixed on the floor formwork, after tightening the nut on the top, it can well ensure that the formwork of the reserved hole does not shift . The utility model uses a double-layer casing, which does not need to process the formwork into a cylindrical shape, and does not need to add wood corrugation and pipe sand inside, and the through joints set on the pipe wall make the installation and removal of the casing simple and convenient.

The utility model can utilize waste plastic pipes, save material costs, have simple procedures and save labor.

The casing positioning horizontal plate, casing positioning vertical bar, nuts and screws of the utility model can be reused, and the double-layer casing can be reused in the reserved holes of the same diameter. For the reserved holes of different diameters, the double-layer casing can be replaced Just do it.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Fig. 1 is the use state figure of the utility model.

Fig. 2 is a top view structural diagram of the utility model.

Reference signs: 1-floor bottom mold, 2-outer hoop mold tube, 3-embedded tube, 4-sleeve positioning horizontal plate, 5-sleeve positioning vertical bar, 6-nut, 7-screw, 8-mold Tube cover plate, 9-inner joint, 10-outer joint.

Detailed ways

The embodiment is shown in Fig. 1-2, a quick-release formwork system with a reserved hole in the floor, including a mold tube, a positioning part and a mold tube cover plate 8, the bottom of the mold tube stands on the bottom mold 1 of the floor, and the mold The pipe is a PVC double-layer casing of equal height, which is divided into an outer hoop mold pipe 2 and an embedded pipe 3, both of which have vertical joints along the pipe body, which are divided into inner joints 9 and outer joints 10, The embedded pipe 3 overlaps inwardly along the pipe wall from the inner joint 9, and the outer hoop mold pipe 2 is butted at the outer joint 10, and the outer side of the inner joint 3 is realized by using the elasticity generated by the outer joint 10. Hoop, two through seams and staggered seams are set;

The locating member is an inverted T shape, comprising a casing positioning horizontal plate 4, a casing positioning vertical bar 5 and a nut 6, the casing positioning vertical bar 5 is welded on the center of the casing positioning horizontal plate 4, and the casing positioning horizontal plate 4 The two ends of the slab are fixed on the floor bottom formwork 1 by screws 7, the mold pipe is centered on the outside of the positioning part, the sleeve positioning vertical rod 5 passes through the center of the mold pipe cover plate 8, the nut 6 and the sleeve The upper part of the tube positioning vertical bar 5 is threaded, so that the mold tube is clamped between the floor bottom mold 1 and the mold tube cover plate 8

The casing positioning vertical rod 5 is a pull screw or a top sheathed steel bar. The mold tube cover plate 8 is a multi-layer board.

When the utility model is in use, the outer hoop mold tube and the corresponding embedded tube of the same pipe diameter are selected according to the aperture of the reserved cavity, the outer hoop mold tube is placed first, and then the embedded tube is installed on the inner side of the outer hoop mold tube. Adjust the inner joint so that the embedded pipe fits on the inner side of the outer hoop mold tube to a suitable size, and seal the outer joint, then center the double-layer casing on the positioning piece that has been fixed on the bottom form of the floor, and then seal it. Cover the mold tube with the cover plate and tighten the nuts.

When the utility model is dismantled, first unscrew the nut to take off the mold tube cover plate, because the embedded tube is not in contact with the concrete, it can be taken out directly, and then the outer hoop mold tube is bent inward along the outer joint to make the outer The hoop mold tube is taken out after being separated from the external pouring concrete, and finally the screw is unscrewed to remove the positioning piece, and the dismantling is completed.

Claims (3)

1. A quick-release formwork system for a reserved hole in a floor, including a mold tube, a positioning piece and a mold tube cover (8), the bottom of the mold tube stands on the floor bottom mold (1), and it is characterized in that: the mold The pipe is a PVC double-layer casing of equal height, which is divided into an outer hoop mold pipe (2) and an embedded pipe (3). Both of them have vertical through-slits along the pipe body, which are divided into inner through-slits (9). and the outer joint (10), the embedded pipe (3) is overlapped inwardly along the pipe wall from the inner joint (9), and the outer hoop mold tube (2) is butted at the outer joint (10), and uses The elasticity generated by the outer joint (10) realizes the hoop on the outer side of the inline pipe (3), and the two joints are staggered; The positioning part is in an inverted T shape, including a casing positioning horizontal plate (4), a casing positioning vertical rod (5) and a nut (6), and the casing positioning vertical rod (5) is welded to the casing positioning horizontal plate (4 ), the two ends of the casing positioning horizontal plate (4) are fixed on the bottom formwork (1) of the floor slab (1) by screws (7). ) through the center of the mold tube cover (8), the nut (6) is threadedly connected with the upper part of the casing positioning vertical rod (5), so that the mold tube is clamped to the bottom mold of the floor (1) and the mold tube cover between the plates (8). 2. The quick-release formwork system for reserved openings in the floor according to claim 1, characterized in that: the casing positioning vertical rod (5) is a pull screw or a steel bar that is threaded on the top. 3. The quick-release formwork system for reserved openings in the floor according to claim 1, characterized in that: the mold pipe cover (8) is a multi-layer board.