CN201456210U

CN201456210U - Inner core of circular hole of shaped building element

Info

Publication number: CN201456210U
Application number: CN2009200993606U
Authority: CN
Inventors: 于永久; 王广明
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-23
Filing date: 2009-03-23
Publication date: 2010-05-12
Anticipated expiration: 2019-03-23

Abstract

The utility model relates to an equipment fitting of a shaped building element, belonging to the building material machinery field. The utility model discloses an inner core of a circular hole of the shaped building element, aiming at overcoming the defects of difficult core-pulling, high damage rate and low efficiency of the circular holes of the core-pulling elements. The utility model comprises an air chamber 13, a circular tube supported inner core 1 and an air bag 5. An air tap 12 is arranged outside the air bag 5. A reinforcing rib 2 is arranged in the center of the circular tube supported inner core 1. The air bag 5 is divided into two surface courses. A connecting rib 3 is arranged between the two surface courses and forms an aerated chamber 4 with the surface courses. The air bag 5 and the circular tube supported inner core 1 are sealed through the acting force of a ring-shaped clamp 10. The sealing of the aerated chamber 4 is realized by a bolt 9. The combined and closed inner core is arranged in a built model frame and then an air chamber 13 and the circular tube supported inner core 1 are aerated through the air tap 12. After the air bag 5 is shaped and becomes strong, the aeration is stopped. The slurry is poured into the model frame to shape the element. After curing, the air is sucked off through the air tap 12 so that the outer surface course of the air bag 5 breaks away from a hollow inner wall 17 of the element, thus achieving the aim of smooth demolding.

Description

A kind of inner core of moulding building element circular hole

Technical field:

The present invention relates to a kind of equipment accessory of moulding building element, belong to building material machinery field.

Technical background:

The building prefabricated components hole of China is many based on circle, the method of this circular hole of moulding is a lot, common have centrifugal casting and hoist engine are loosed core two kinds, many moulding of centrifugal casting large-scale component, and cost is higher, the hoist engine low and product of operating efficiency of loosing core causes internal injury easily, and breakage rate is bigger.

Summary of the invention:

The invention discloses a kind of inner core of moulding building element circular hole, purpose is in order to solve present China building prefabricated components industry, the difficulty of loosing core that the member circular hole of loosing core is produced, disadvantage such as the product breakage rate is big, and efficiency of construction is low.

The present invention is by air chamber 13, pipe supports inner core 1, form with air bag 5, air bag 5 is a closed structure, and there is the valve 12 of the air-breathing usefulness of inflation in the outside, the inboard is supported inner core 1 with pipe and is connected, pipe supports inner core 1 and cooperates grafting with air bag 5 center holes, and pipe supports inner core 1 center a reinforcement that prevents to be out of shape 2, and air bag 5 is divided into inside and outside two surface layers, there is the muscle of connection 3 to connect between the surface layer, connects formation inflatable chamber 4 between muscle 3 and the surface layer.

The sealed attachment mode that the pipe of air chamber 13 1 ends supports inner core 1 and air bag 5 is that pipe support inner core 1 outer coversheet has gum cover 14, and there is annular holder 10 gum cover 14 outsides.Have in the plenum chamber 4 of air bag 5 and support gum cover 11, the active force by annular holder 10 supports inner core 1 sealing with the air bag 5 of air chamber 13 1 ends and pipe and clamps.The sealing clamping mode that the air bag 5 of air chamber 13 other ends and pipe support inner core 1 is that pipe supports and is fixed with coupling nut 7 on the inner core 1 and will screws masterpiece by bolt 9 and be used for pressure pad 8, and pressure pad 8 flattens the surface layer of air bag 5, thereby realizes the sealing of plenum chamber 4.

Description of drawings:

Fig. 1 is a combination inner core cross-sectional end view;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is a prefabricated components end face cross-sectional schematic.

The specific embodiment:

The airtight good inner core of combination is placed by assembly 6, assembly 15 and assembly 16 are barricaded as inflates in air chamber 13 and circular support inner core 1 by valve 12 in framed then, gas enters the plenum chamber 4 of air bag 5 by circular support inner core 1, treat that air bag 5 moulding stop inflation after strong, in framed, pour into slip and make molding component, treat member solidify after again by valve 12 with the gas sucking-off, thereby the hollow inwall 17 that makes the outside surface layer of air bag 5 break away from member reaches the purpose of the smooth demoulding.

Claims

1. the inner core of a moulding building element circular hole is characterized in that: by air chamber (13), pipe supports inner core (1), and air bag (5) is formed, air bag (5) is a closed structure, there is the valve (12) of the air-breathing usefulness of inflation in the outside, the inboard is supported inner core (1) with pipe and is connected, pipe supports inner core (1) and cooperates grafting with air bag (5) center hole, pipe supports inner core (1) center a reinforcement that prevents to be out of shape (2), air bag (5) is divided into inside and outside two surface layers, there is connection muscle (3) to connect between the surface layer, forms inflatable chamber (4) between connection muscle (3) and the surface layer.

2. the inner core of a kind of moulding building element circular hole according to claim 1 is characterized in that: the sealed attachment mode that the pipe of air chamber (13) one ends supports inner core (1) and air bag (5) is that pipe support inner core (1) outer coversheet has gum cover (14), there is annular holder (10) gum cover (14) outside, in the plenum chamber (4) of air bag (5), support gum cover (11) is arranged, active force by annular holder (10) supports inner core (1) sealing with the air bag (5) of air chamber (13) one ends and pipe and clamps, the sealing clamping mode that the air bag (5) of the other end of air chamber (13) and pipe support inner core (1) is that pipe supports and is fixed with coupling nut (7) on the inner core (1) and will screws masterpiece by bolt (9) and be used for pressure pad (8), pressure pad (8) flattens the surface layer of air bag (5), thereby realizes the sealing of plenum chamber (4).