CN101542055B

CN101542055B - Void former

Info

Publication number: CN101542055B
Application number: CN2007800345842A
Authority: CN
Inventors: 安德鲁·库马罗
Original assignee: ITW Construction Systems Australia Pty Ltd
Current assignee: ITW Construction Systems Australia Pty Ltd
Priority date: 2006-08-31
Filing date: 2007-08-09
Publication date: 2011-12-07
Anticipated expiration: 2027-08-09
Also published as: EP2061940A1; CN101542055A; CA2662214C; WO2008029209A1; CA2662214A1

Abstract

A void former for use in the casting of concrete wall panels to form a recess in a surface of the panel, comprises a flexible shell of box-like form is open at one side, an opposite side of the shell being closed and being adapted for co-operation with a connection mounting cast into the panel to be accessible via the recess in the panel. The shell includes a removable rigidifying insert which, after casting of the panel, is removed from the shell to permit removal of the shell from the recess thus formed, by flexing of the shell.

Description

Hollow mould

Technical field

The present invention relates to a kind of hollow mould that is used for the casting concrete wallboard.

Background technology

In the building construction that uses precast concrete panel, it is necessary forming connection between installing with the adjacent wall board that forms long wall with edge-to-edge's relation.This connection can realize by being merged into wallboard when the casting connector installed part, this connector installed part be exposed to contiguous its edge wallboard the surface but from the slight indent in this surface.After installation, the metal connector plate is applied to connecting the adjacent connection part of two adjacent wallboards to stride across two installed parts.The connection part can adopt different forms, for example is used to provide the groove that can adjust connection, internal thread hoop, or pad; The type that is connected with the connector board that strides across two wallboards will depend on the concrete property of connection part.Figure 1 shows that connected system, comprise the connection part of groove 2 forms and stride across two grooves and be connected to the connector board 4 of groove that it can be in groove (wherein a groove level, another groove is vertical) slides and adjust allowing by bolt.Each groove leads to the rectangular recess R that forms in the surface of wallboard P.Connector board 4 also is positioned at groove.When connecting between two wallboards, the size of recess R allows to adjust in the position of connector board.

Summary of the invention

The present invention relates to a kind of hollow mould that is used to form groove that is specifically designed to, groove is for example shown in the lip-deep R at an edge of plate.

According to the present invention, a kind of hollow mould is provided, this hollow mould is used in the casting of the concrete panel that forms groove in the surface of wallboard, this hollow mould comprises: at the open box-like flexible frame of class of a side, the opposite side sealing of this framework and the connection part that is suitable for advancing in the described plate with casting cooperate easily to enter by the groove in the described plate; Can be positioned on the rigid insert in the described framework, this insert passes described open sides and is extensible to allow described framework to shift out from the groove of such formation by the deflection framework after casting.

According to the present invention, further provide groove in a kind of surface that casts in concrete panel with the method for inlet that the connection part in the wallboard is provided, said method comprising the steps of:

Hollow mould is provided, and this hollow mould comprises the flexible frame that class is box-like, and this framework is open in a side, seals at opposite side;

Extensible insert is installed with stiffening frame in described inside of frame;

Described connection part is installed at the outside projection in the closed side of described framework;

By forming described plate around the casting of hollow mould and connection part, with the open sides of described framework towards the face of wallboard to flush substantially with it;

After concrete setting, the open sides that passes described framework shifts out rigid insert from framework; And the described framework of deflection so that framework from the groove of such formation, shift out.

In one form, framework is suitable for at least one, the connection part of preferred two internal thread hoop forms uses.In another form, framework is suitable for cooperating with the connection part of groove form.In another form, framework is suitable for that the two cooperates with internal thread hoop and groove.With cooperating of connection part be by plug or from the closed side of framework outwards outstanding other connector, engage and locate described connection part thus.Plug or other structure can be one-body molded with framework, perhaps selectively the closed side of framework can be porose to receive from the inner outwards outstanding insert that engages with the connection part of being used for of framework.

In the casting of the concrete panel in the environment of plant, wallboard typically is cast on the smooth steel bed.According to specific situation, in the process of casting, groove may in the upper surface of wallboard, (be called nearly surface) and form or with the soffit of the contacted wallboard of steel bed in (being called surface far away) form.Hollow mould in the preferred embodiment of the present invention can be used under above-mentioned any situation.According to a preferred embodiment of the invention, framework is that cubic and insert are corresponding shapes.Insert has the sealing surface that is configured for the open sides of closed frame in the casting of nearly surface.Relative with sealing surface is open surface, and in the casting of surface far away, insert is positioned so that its open surface is positioned at the open sides of framework and cooperate with means and to be used for hollow mould is positioned to water pig bed.When watering pig bed and be flat steel bed, easily, by with the hollow mould location in bed at the inner magnetic appurtenance that uses magnetic systems of insert.This magnetic systems can comprise one or more magnetic blocks that are installed in movably in the insert, directly to close facing to steel casting bench grafting.Yet, be understandable that other system, nonmagnetic, can selectively be used for bed fixation hollow formwork relatively; For example insert can be positioned to it sealing surface to implantation to fix by two-sided tape.

Description of drawings

Specific embodiments of the invention will be described by in conjunction with the accompanying drawings example only, wherein:

Fig. 2 is the exploded view of the basic element of character of demonstration hollow mould according to a preferred embodiment of the invention;

Fig. 3 is for showing the schematic cross sectional view of the hollow mould be set to be used for nearly surperficial Fig. 2 that casts of cooperating with the connection part of being made up of two internal thread hoops;

The sectional drawing that is similar to Fig. 3 of the hollow mould that Fig. 4 finishes for display board casting;

Fig. 5 is set to be used for the far exploded view of the hollow mould of the structure of surface casting for showing;

Fig. 6 is the schematic cross sectional view that is equivalent to Fig. 5, shows the hollow mould that is set to water facing to steel pig bed;

Fig. 7 shows an embodiment of the framework be particularly suitable for the hollow mould that the connection part with the groove form uses; And

Fig. 8 is presented at the schematic cross sectional view that is assembled to the groove of the hollow mould among Fig. 7 under the surperficial casting state far away.

The specific embodiment

According to Fig. 2, hollow mould is included in molded framework 6 in the flexible wear-resisting plastics (for example flexible polyurethane).Framework 6 is a cubic, and a face place in its two big planes (upper surface as shown in Figure 2) is open.The integral type insert 8 of relative stiffness also is a cubic, is designed to be inserted into the inside of framework 6 with stiffening frame.Insert 8 be a kind of in suitable plastic the thin wall construction of integrally molded relative lightweight, suitable plastic is nylon or polypropylene for example.The opening of insert in its big plane (upper surface as shown in Figure 2), and insert comprises reinforcing mat 10, and reinforcing mat 10 defines the cell row 12 of extending from relative sealing surface to open surface.

About may using of hollow mould and the connection part of being made up of two internal thread hoops (ferrules), the operation of hollow mould begins to be described most.The sealing surface of framework is designed to cooperate with the outer end of binding round.For this purpose, the sealing surface of framework 6 has the plug 14 in the outwards outstanding open end that joins hoop to.

Under nearly surperficial casting state (referring to accompanying drawing 3 and 4), in casting cycle, groove forms in upper surface, and the sealing surface that framework 6 is positioned to it is minimum.Hoop 16 in a known way by hoop seat or the supports support that schematically shows at 18 places from watering the suitable height place of pig bed.Plug 14 below framework 6 joins in hoop 16 the open end, and the inside that insert 8 is applied to framework 6 is with stiffening frame, and the sealing surface of insert 8 is arranged in topmost and enters into framework to stop at the casting cycle concrete.Casting back (referring to Fig. 4), the upper surface of plate P flushes with the top edge of hollow mould substantially, as shown in Figure 4.Insert 8 shifts out from framework 6, and along with the shifting out of insert, the flexible of framework 6 makes it be operated to allow framework simply to shift out from the rectangular recess of such formation, and thus, the outer end of hoop 16 is exposed to the main square surface of groove then.

Hollow mould can be reused in this way.

In distortion, the plug 14 that the sealing surfaces from framework 6 that replacement and hoop 16 cooperate are given prominence to, framework forms porose to hold bolt or the plug the end that is inserted into hoop from framework inside.

Under surperficial casting state far away (accompanying drawing 5 and 6), groove is formed on facing to steel and waters in the soffit of plate of pig bed, piece of magnetic material 20 is placed at least some unit 12 of insert 8, and insert is employed as its open surface facing to steel bed, and insert is by locating position in bed safely at the magnetic block 20 of its inside, unit thus.Framework 6 is placed on the insert 8, and its sealing surface is topmost, and the open end of hoop 16 is positioned on the outwards outstanding plug 14, and spacer ferrule 16 thus.After the casting, when plate is mentioned from the bed, magnetic block 20 will keep being attached together with bed, and insert 8 can remove from framework 6, and framework self is removed from formwork by the operation of previously described framework then.Replace to use magnetic block 20 in bed, can use sealing surface that insert makes it, and be fixed by cementing agent or two-sided tape to implantation with insert 8 location.

When the connection part is a kind of form of groove, this groove mouthful be suitable dimensions, two plugs 14 also can be inserted in the mouth of groove to engage and positioning groove.Yet in the selectable form shown in Fig. 7 and 8, the outside of the sealing surface of framework 6 is formed with the prolongation rib 22 of width, with provide with groove 24 the mouth tight insertion.

Although the connection part that the special hollow mould of describing is designed to be used for internal thread hoop or groove form uses, be understandable that, hollow mould, especially the framework of hollow mould can be constructed to and the connection part of other type uses by suitable gap is provided between framework and connection part.Be understandable that equally framework can be the shape of the cube shaped shown in being different from, its shape will be decided by the shape of the groove that is formed.

The specific embodiment is only described by way of example, and all improvement may drop in protection scope of the present invention.

Claims

1. hollow mould, this hollow mould are used in the casting of the concrete panel that forms groove in the surface of wallboard, and this hollow mould comprises:

At the open box-like flexible frame of class of a side, the opposite side sealing of this framework and the connection part that is suitable for advancing in the described plate with casting cooperate, so that described framework is easy to enter by the groove in the described plate;

Can be positioned on the rigid insert in the described framework, this insert passes described open sides and is extensible to allow described framework to shift out from the groove of such formation by the deflection framework after casting.

2. hollow mould as claimed in claim 1, wherein, by providing from the outward extending projection in the closed side of described framework and the cooperating of connection part.

3. hollow mould as claimed in claim 2, wherein, described connection part is the internal thread hoop, described projection joins in this internal thread hoop.

4. hollow mould as claimed in claim 2, wherein, described connection part is the groove with open sides, described projection is inserted into the open sides of this groove.

5. as arbitrary described hollow mould in the claim 2 to 4, wherein, described projection and described framework are integrally formed.

6. as arbitrary described hollow mould in the claim 1 to 4, wherein, described rigid insert is that class is box-like, and it is open in a side, in the opposite side sealing, described insert can be by selectively making adjacent being installed in the flexible frame of open sides of its open sides or relative closure side and described flexible frame.

7. hollow mould as claimed in claim 6, wherein, described rigid insert comprises the inside reinforcing mat of the unit that extends between the closed side that is limited to insert and the open sides.

8. hollow mould as claimed in claim 7 further comprises magnetic block, and this magnetic block can be positioned at least some of described unit and waters pig bed so that hollow mould is fixed to steel.

9. as arbitrary described hollow mould in the claim 1 to 4, wherein, described framework and insert all are cube shaped.

One kind in the surface of concrete panel the casting groove said method comprising the steps of with the method for inlet that the connection part that leads in the wallboard is provided:

Extensible insert is installed with stiffening frame in described inside of frame:

After concrete setting, the open sides that passes described framework shifts out rigid insert from framework; And

The described framework of deflection so that framework from the groove of such formation, shift out.

11. method as claimed in claim 10, wherein, described connection part is the internal thread hoop, and described projection joins in the internal thread hoop.

12. method as claimed in claim 11 wherein, has two such projections, each projection is bonded in separately the internal thread hoop.

13. method as claimed in claim 10, wherein, described connection part is the groove with open sides, and described projection joins in this groove.

14. as arbitrary described method in the claim 10 to 13, wherein, for the upper surface at described plate forms groove, it is minimum and up spaced apart from watering pig bed that described framework is positioned to its closed side, thus, the upper surface flush of the upside of the opening of described framework and described plate.

15. as arbitrary described method in the claim 10 to 13, wherein, in order to form groove on the bottom surface facing to the described plate that waters pig bed, described framework is positioned to its open sides and places facing to watering pig bed.

16. method as claimed in claim 15, wherein, the described pig bed that waters is made by steel, and rigid insert is a hollow internal structure, this hollow internal structure defines a series of unit towards a side of insert, described insert be positioned in the framework and its open sides facing to watering pig bed, and at least some of described unit comprise the magnetic anchor, this magnetic anchor is used for hollow mould magnetically anchored to and waters pig bed.

17. method as claimed in claim 15, wherein, the insert in described framework is releasably attached to and waters pig bed.

18. as arbitrary described method in the claim 10 to 13, wherein, described framework and described insert all are cubics.