CN2096597U

CN2096597U - Combined large-scale building plastic mould case

Info

Publication number: CN2096597U
Application number: CN 91204537
Authority: CN
Inventors: 王福玲
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-03-29
Filing date: 1991-03-29
Publication date: 1992-02-19

Abstract

The utility model relates to a combined large-scale plastic shuttering for construction, comprising side walls and a top cover. The connecting parts of the combined large-scale plastic shuttering are all connected by positioning keys-grooves. The inside of the shuttering is provided with a tilted supporting steel tubes for enhancing the rigidity of the shuttering. The periphery of the bottom of the shuttering is provided with angle steels which are provided with demoulding holes. The combined large-scale plastic shuttering which uses five decomposed sheet type plastic pieces is a common device, and the price is 1/6 of large-scale injection moulding machines. The utility model reduces the total investment for manufacturing various specifications of shutterings, and simplifies manufacturing technology.

Description

Combined large-scale building plastic mould case

The utility model relates to the combined large plastic form that the no beam ribbed slab floor of a kind of building cast-in-situ construction is used.

For the construction work of large span, big load, adopt mould shell cast-in-place concrete dense-rib floor, can save a large amount of concretes, steel, the floor slab structure height reduces, and increase headroom, and floor is handsome in appearance, has alleviated the building deadweight, and the basis is dropped into for it and is reduced.With large-scale mould shell cast-in-place construction, to simplify template and support, formwork itself is light-duty large form, accelerates speed of application greatly.Therefore, become the floor system of international popular at present with the no beam ribbed slab floor of mould shell cast-in-place construction.

The now external formwork of using mostly is frp mould, as U.S. M, F, G company, Sweden A, B, M company etc.The frp mould demoulding is the valve that relies on the shell inner top, the input compressed-air ejection.In case valve damages, during obstruction, do not advance compressed gas and can't the demoulding, the formwork spoilage height under manually prizing.Frp mould is for pasting method production, the high cracky of cost.Too high formwork expense improves construction costs.

For overcoming the shortcoming of frp mould, Chinese patent CHN.902035525

Introduced a kind of large-scale plastic building formwork.In the plastic casing of integral injection moulding is contour, equidistant close rib plastics reinforcing rib, and the reinforcing rib of two mutual square crossings that the edge is middle is provided with the band steel stiffener, and stiffener is provided with 2～4 demoulding holes.This plastic form is difficult for concrete bonding, anti-certain impact toughness, and therefore the repeat usage height is well suited for China's national situation, and progressively obtains promoting.Yet the formwork of this integral injection moulding is large-scale plastic part, the application structure foam process, and the formwork integral one-step molding, so need invest large size plastic jetting-moulding device and large injection mold when producing, particularly every cover formwork mould is up to surplus 20 ten thousand yuan.Along with the development of this technology, formwork should have the plurality of specifications size, to satisfy design and construction requirement.Single or minority specification formwork far can not adapt to the needs of present construction.As want the complete large plastic mould shell of production specification, only the investment cost of mould is just very expensive, thereby the development of above-mentioned technology is restricted.

The purpose of this utility model provides a kind of anti-certain impact toughness, the repeat usage height, and specification is complete, small investment, the simple large plastic form of technology is to satisfy the requirement of engineering design and construction.

For this reason, the utility model is taked following technical scheme: whole housing is made up of decomposable 4 sidewalls (1) (2) and 1 top cover (3), these 4 sidewalls (1) (2) comprise 2 "

" type sidewall (1) and 2 " one " type sidewalls.Connection place between 2 sidewalls (1) (2) and sidewall (1) (2) all connect with positioning key one groove with the place of linking between the top cover (5).Because all positioning key one grooves have positioning accuracy, can make the shell face after the combination smooth.In the housing every "

" be consolidated with between type sidewall (1), " one " type sidewall (2) and the top cover (3) and tiltedly draw supporting steel pipe (4), thereby can remove the close rib ribs of plastics in the shell, make formwork weight constant, and can improve formwork rigidity.Around housing bottom, be consolidated with peripheral angle steel (5).

The utility model is owing to is made up of 5 heavy wall sheet shape spares, and do not have the presentation quality requirement (as requirements such as surperficial gas silk, color spots) of conventional plastic, thus these plastics be fabricated to die press technology for forming.Its technology, apparatus characteristic are: plastic extruder is equipped with memory, mouthful mould, extrudes backing (molten state) and falls into mould, uses forcing press cold moudling.So device therefor is general common apparatus, its price only is 1/6 of a large size plastic jetting-moulding device; Because plastic is sheet material and approximate sheet material, so mould is simple, cost is low.Like this, the formwork product equipment needed thereby and the mould investment of making plurality of specifications descend significantly, and the manufacturing technology of large-scale formwork is simplified.

Because small investment, producing the formwork product in each department becomes possibility, can reduce freight, and engineering is benefited.

Fig. 1 is the utility model structural representation.

Fig. 2 is its vertical view.

Fig. 3 is the enlarged diagram of position A shown in Figure 1.

This figure demonstrate top cover (3) with "

" type sidewall (2) links positioning key one groove at place with screw (14) fastening view.

Fig. 4 is a position shown in Figure 1 B-B amplification view.

This figure demonstrate " " type sidewall (1) and " one " type sidewall (2) link place's positioning key one groove with the fastening state of screw (15).

Fig. 5 is chamfering shape enlarged diagram for (5) four jiaos for the peripheral angle steel of position D shown in Figure 2.

Fig. 6 be "

" type sidewall (1) structural representation.

Fig. 7 is the E-E sectional view of position shown in Figure 6.

Fig. 8 be "

" type sidewall (1) vertical view.

From overlooking, its shape be "

" shape.

Fig. 9 is the b-b sectional view of position shown in Figure 6.

Thus figure find out " " groove of type sidewall (1) point of attachment.

Figure 10 is the enlarged diagram of position a shown in Figure 7.

Figure 11 is " one " type side wall construction schematic diagram.

Figure 12 is the F-F sectional view of position shown in Figure 11.

Figure 13 is the d-d sectional view of position shown in Figure 11.

Figure 14 is the enlarged diagram of position C shown in Figure 12.

Find out the protruding key of " one " type sidewall (2) point of attachment by Figure 13,14.

Figure 15 is top cover (a 3) structural representation.

Figure 16 is the upward view of G direction shown in Figure 15.

Figure 17 is the enlarged diagram of position e shown in Figure 15.

Figure finds out the groove of top cover (3) point of attachment thus.

Above-mentioned "

" link positioning key one groove at place of type and " one " type sidewall (1) (2), and "

" type, " one " type sidewall (1) (2) all use screw fastening with positioning key one groove at top cover (3) place of linking.Have inside and outside square groove (7) (8) in top cover (3) inboard, and "

" type, " one " type sidewall (1) (2) inboard have groove (9) (10).Plastics angle-piece (11) one side is put into above-mentioned groove (7) (8) (9) (10) respectively, stretch out simultaneously with adjacent plastics angle section (11) and wrap in steel plate corner protector (12) but be mounted in one side that interior the plastics angle-piece of top cover (3) groove (7) (8) (11) stretches out.To tiltedly draw supporting steel pipe (9) one ends with bolton on the steel plate corner protector (12) that is installed in the plastics angle-piece (11) on the top cover (3); The other end flatten and curve use again behind the certain angle bolton " " plastics angle-piece (11) on the type, " one " type sidewall (1) (2) stretches out on the face.Housing bottom is used bolton with peripheral angle steel (5), and has demoulding hole (6) on every limit of peripheral angle steel (5).4 angles of periphery angle steel (5) are the chamfering shape, like this, in work progress, just leave the space in the middle of 4 angles of the angle steel of adjacent 4 formworks (5), so that squeeze into housing screw, prevent formwork displacement in work progress.

Claims

1, a kind of combined large building plastic formwork, it is characterized in that it is made up of 2 " ㄇ " type sidewalls (1), 2 " one " type sidewalls (2) and top cover (3), its connection place is provided with positioning key one groove, be consolidated with between every " ㄇ " type, " one " type sidewall (1) (2) and the top cover (3) and tiltedly draw supporting steel pipe (4), fixed angle steel (5) around the housing bottom.

2, combined large building plastic formwork according to claim 1, it is characterized in that described "

" link positioning key one groove at place of type, " one " type sidewall (1) (2) and top cover (3) is fastening with screw.

3, combined large building plastic formwork according to claim 1 is characterized in that described top cover (3) inboard has inside and outside square groove (7) (8), "

" type, " one " type sidewall (1) (2) inboard have groove (9) (10).

4, combined large building plastic formwork according to claim 1, it is characterized in that plastics angle-piece (11) one side is put into described groove (7) (8) (9) (10) respectively, and be installed on the one side steel plate corner protector that one side that plastics angle-piece (11) that top cover (3) groove (7) (8) locates stretches out and adjacent plastics angle-piece stretch out.(12) wrap in together.

5, combined large building plastic formwork according to claim 1, it is characterized in that described tiltedly draw supporting steel pipe (4) one ends with bolton on the steel plate corner protector (12) of the plastics angle-piece (11) that is positioned at top cover (3); The other end with bolton "

" the stretching out on the face of plastics angle-piece (11) on the type, " one " type sidewall (1) (2).

6, combined large building plastic formwork according to claim 1 is characterized in that described housing bottom and peripheral angle steel (5) use bolton.

7, combined large building plastic formwork according to claim 1 is characterized in that every limit of described peripheral angle steel (5) has demoulding hole (6).