CN2247205Y

CN2247205Y - Pair-pulling flat iron of steel form plate for construction

Info

Publication number: CN2247205Y
Application number: CN 96205009
Authority: CN
Inventors: 张新玉; 张前进
Original assignee: 张军
Priority date: 1996-03-14
Filing date: 1996-03-14
Publication date: 1997-02-12
Anticipated expiration: 2006-03-14

Abstract

The utility model relates to pair-pulling flat iron of a steel template for construction. The pair-pulling flat iron of a steel template for construction forms the shape of a long and flat body, and both ends of the flat iron are provided with pin holes corresponding to square pin holes in the steel template. A central distance between the two pin holes is determined by a distance from the inner edge of the template having the thickness twice than designed concrete to the central distance between the pin holes. The stressing direction of the pulling force of the flat iron and the template are opposite without an included angle. The utility model having the advantages of simple processing and easy use can effectively enhance the fastening and shaping ability of the template. The utility model can be widely used for casting various walls, columns and beams on site in construction engineering.

Description

The construction steel template is to drawing band iron

The utility model belongs to the annex of construction steel template or punching block shell, is specifically related to a kind of tying means that is used to make steel form or punching block shell location.

In pour concrete wall, post, beam construction, must be with steel template or formwork relative fixed.In the prior art, indeformable for guaranteeing not blow-up of pour concrete body, piece together tying at the single face of template and done construction and improve.For example, CN2037385 disclosed " Form panel clamping hoop ", CN2070785 disclosed " a kind of set shaped steel formwork connector ", these class formation component are more, and are quite big with the supporting then quantity of steel form, and the keeping of engineering cost, operation element amount, member replenishes and requires height.Its fatal defective is that single face is pieced together knot template fastening force and there is nearly 90 ° angle in holding capacity, and is stressed extremely unreasonable.Workmanship is difficult to guarantee that its practicality also is restricted.Another kind of technology, as CN88200380 disclosed " split bolt ", CN2097242 disclosed " improved grouting template standing screw ", adopt screw rod to drawing relative template, get fixed effect preferably, but when it uses, need correspondingly on template, to be provided with screw hole, need template is transformed, and the workload of its connection and recovery screw rod is bigger, and construction speed is caused certain influence.

The purpose of this utility model provides a kind of simple and practical template to drawing band iron.

The utility model is taked following technical scheme.

The construction steel template is a long band iron body shape to drawing band iron, and the center to center distance (1) that the band iron two ends respectively are provided with a back-shaped pin-and-hole, two pin-and-holes adds 2 times template inside rim to the center to center distance distance (d) of pin-and-hole and determines with concrete thick (t).

In the use, each folder of band iron two ends is inserted in the two template splicing seams, and the back-shaped pin-and-hole of band iron is corresponding with the back-shaped pin-and-hole of standard punching block, utilizes the back-shaped pin-and-hole of steel form accessory to insert fastening, and template facing each other to tension, can be implemented concrete pouring by band iron.After finishing using, the steel form of dismantling, band iron can knock out the subsides wall owing to be flat body shape.Floating during exterior decoration.

The utlity model has significant result of use.

Because the power that imposes on the template of band iron is lateral pull, the slurry side direction of bearing with the template power of collapsing, direction is opposite, is subjected to line of force unanimity, has improved the fastening typing power of template greatly.And its processing is extremely simple, and it is extremely convenient to use, and cost is insignificant, has the good engineering practical value.It can be widely used in the construction work such as all kinds of concrete walls, post, beam of in-site pouring.

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

Fig. 1 is to drawing the band iron structure chart;

Fig. 2 is to drawing band iron user mode figure.

Among the figure, 1 is flat body iron, and 2 is back-shaped pin-and-hole, and 3 is steel form, and 4 is the concrete body, and 1 is the center to center distance of two pin-and-holes, and t is a concrete thickness, and d is the center to center distance distance of template inside rim to pin-and-hole.

According to national standard, the steel form inside rim is 22mm to the center to center distance of pin-and-hole apart from d, and back-shaped pin-and-hole aperture is 14mm, and therefore, to drawing band iron when actual engineering is used, the distance in its two back-shaped hole is, the concrete of design is thick to be added 44 millimeters and determine.The diameter of pin-and-hole is 14mm, cooperates with the back-shaped pin of 12.5mm.Also can determine the pin-and-hole pitch-row as stated above according to the nonstandard template that reality is used.

Claims

1, a kind of construction steel template is characterized in that to drawing band iron band iron is a long band iron body shape, and its two ends respectively are provided with a back-shaped pin-and-hole, and the center to center distance of two pin-and-holes (1) adds 2 times template inside rim to the distance (d) of the center to center distance of pin-and-hole and determines with concrete thick (t).