CN201443203U

CN201443203U - Mold of preformed hole of cast-in-place reinforced concrete slab

Info

Publication number: CN201443203U
Application number: CN2009200251907U
Authority: CN
Inventors: 郭收田; 崔玉军
Original assignee: QINGDAO JIAOZHOU CONSTRUCTION GROUP CO Ltd
Current assignee: Zhongqi Jiaojian Group Corp Ltd
Priority date: 2009-05-18
Filing date: 2009-05-18
Publication date: 2010-04-28
Anticipated expiration: 2019-05-18

Abstract

The utility model discloses a mold of a preformed hole of a cast-in-place reinforced concrete slab, which comprises an upper template, a lower template and a side template, and is characterized in that the mold further comprises a bolt penetrating through the upper template and the lower template, a plastic pipe sheathed on the bolt and a cross-shaped iron fixture; the cross-shaped iron fixture comprises two iron bars that are vertical to each other and fixedly connected; and the center of the cross-shaped iron fixture is provided with a screw hole; the bolt is fixedly connected with the screw hole of the cross-shaped iron fixture after passing through the upper template; the diameter of the bolt is 6 mm; and the inner diameter of the plastic pipe is more than the diameter of the bolt. The mold has the following advantages: the plastic pipe is positioned by the bolt; then the bolt is closely fixed on the upper template and the lower template by the cross-shaped iron fixture, thereby avoiding the movement of the plastic pipe during the process of the casting; therefore, the positioning is accurate without causing loss due to the failure of the casting of the preformed hole opening.

Description

A kind of in-situ reinforced concrete slab preformed hole mould

Technical field

The utility model relates to a kind of cast-in-situ steel reinforced concrete mould, particularly a kind of in-situ reinforced concrete slab preformed hole mould.

Background technology

In the construction work, when the upper and lower conduit road passes through the cast-in-situ steel reinforced concrete template, need to reserve the aperture on the floor; at present; generally the mode that adopts is, is placed on the position of preformed hole with waste and old pipe or fragment of brick, sticks in or blocks with nail; but this mode is very unstable; in the time of concreting, be easy to generate displacement or be stuck, be difficult for the demoulding or rejecting; thereby it is very inconvenient and in case cause and build failure, can cause very big waste again.

Summary of the invention

Problem to be solved in the utility model is: a kind of accurate positioning is provided and can build the wasting in-situ reinforced concrete slab preformed hole mould of failure because of reserving the aperture.

In order to solve the problems of the technologies described above, in-situ reinforced concrete slab preformed hole mould of the present utility model, comprise cope match-plate pattern, lower bolster and side template, it is characterized in that: also comprise a bolt that runs through cope match-plate pattern and lower bolster, be set in plastic pipe and cross iron jig on the bolt, described cross iron jig comprises two mutual vertical and fixedly connected iron bars, the center of described cross iron jig is provided with a screwed hole, and described bolt is fixedlyed connected with the screwed hole on the cross iron jig after passing cope match-plate pattern.

In order to allow bolt from plastic pipe, deviate from smoothly, in-situ reinforced concrete slab preformed hole mould of the present utility model, the diameter of described bolt is 6mm, the internal diameter of described plastic pipe is greater than the diameter of bolt.

The beneficial effect that the utility model is obtained is: by bolt plastic pipe is positioned, with the cross iron jig bolt tightly is fixed on cope match-plate pattern and the lower bolster then, avoided moving of in the process of building plastic pipe, therefore not only accurate positioning, and can not build failure and cause damage because of reserving the aperture.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the structural representation of cross iron jig.

Among the figure: 1, side template, 2, cope match-plate pattern, 3, bolt, 4, the cross iron jig, 5, plastic pipe, 6, lower bolster, 7, screwed hole, 8, iron bar.

The specific embodiment

As depicted in figs. 1 and 2, in-situ reinforced concrete slab preformed hole mould of the present utility model, comprise cope match-plate pattern 2, lower bolster 6 and side template 1, also comprise a bolt 3 that runs through cope match-plate pattern 2 and lower bolster 6, be set in plastic pipe 5 and cross iron jig 4 on the bolt 3, described cross iron jig 4 comprises two mutual vertical and fixedly connected iron bars 8, the center of described cross iron jig 4 is provided with a screwed hole 7, and described bolt 3 passes cope match-plate pattern 2 backs fixedlys connected with the screwed hole 7 on the cross iron jig 4; The diameter of described bolt 3 is 6mm, and the internal diameter of described plastic pipe 5 is greater than the diameter of bolt 3.

When using, bolt 3 is passed from lower bolster 6, plastic pipe 5 is nested on the bolt 3, and then bolt 3 passed cope match-plate pattern 2, rotation cross iron jig 4 makes bolt 3 be fixed on firmly on cope match-plate pattern 2 and the lower bolster 6, just can build at last.

Build finish after because the internal diameter of plastic pipe 5 is greater than the diameter of bolt 3, thus the reinforced concrete floor that bolt 3 is easy to after build extract out, in order to using again next time.

In-situ reinforced concrete slab preformed hole mould of the present utility model positions by 3 pairs of plastic pipes 5 of bolt, and it is accurate to guarantee to reserve the position, aperture, and can also guarantee that can not build failure because of the reservation aperture causes waste.

Claims

1. in-situ reinforced concrete slab preformed hole mould, comprise cope match-plate pattern (2), lower bolster (6) and side template (1), it is characterized in that: also comprise a bolt (3) that runs through cope match-plate pattern (2) and lower bolster (6), be set in plastic pipe (5) and cross iron jig (4) on the bolt (3), described cross iron jig (4) comprises two mutual vertical and fixedly connected iron bars (8), the center of described cross iron jig (4) is provided with a screwed hole (7), and described bolt (3) passes cope match-plate pattern (2) back fixedlys connected with the screwed hole (7) on the cross iron jig (4).

2. in-situ reinforced concrete slab preformed hole mould according to claim 1 is characterized in that: the diameter of described bolt (3) is 6mm, and the internal diameter of described plastic pipe (5) is greater than the diameter of bolt (3).