CN201809861U - Steel structure concrete-based embedded bolt locating device - Google Patents

Abstract

A pre-embedded bolt positioning device for a steel structure concrete base, which is composed of an upper formwork, a lower formwork and a bolt casing, the upper formwork and the lower formwork are rectangular, and the corresponding side lengths are equal, and the upper and lower sides of the bolt casing are respectively welded to the upper formwork and the lower formwork On the lower formwork, the inner diameter of the bolt sleeve is 5 mm larger than the diameter of the embedded bolt, and there are bolt holes at the connection between the upper formwork and the lower formwork and the bolt sleeve, and the diameter of the bolt hole is 1 mm larger than the diameter of the embedded bolt. A feeding hole is correspondingly opened in the center of the upper template and the lower template. The utility model adopts an upper formwork, a lower formwork and a bolt casing in the pre-embedded bolt positioning device of the steel structure concrete base, and fixes the pre-bolts on the positioning device in advance, and fixes the pre-embedded bolts by positioning between the upper formwork and the concrete-based steel mold. For the position of the bolts, after the concrete pouring is completed, the pre-embedded bolt positioning device of the steel structure concrete foundation can be removed, which can greatly improve the precise positioning of the pre-embedded bolts in the independent foundation, and the shape and position tolerance can be controlled within ±2mm.

Description

Pre-embedded Bolt Positioning Device for Concrete Foundation of Steel Structure

Technical field:

The utility model relates to the field of machinery, in particular to concrete pouring auxiliary equipment, in particular to a pre-embedded bolt positioning device for steel structure concrete foundation.

Background technique:

In the prior art, in the installation of steel columns in common steel structure buildings, the precise positioning of embedded bolts is a construction problem that has plagued the installation quality and progress of steel columns for a long time. During the process of pouring and mixing the embedded bolts, there are many reasons that will cause the embedded bolts to deviate from the installation position, such as: pouring of concrete, insertion of vibrating rods, deformation (collision) of fixing bolts, and deformation of concrete formwork. Displacement, etc. will affect the displacement of the embedded bolts in the independent concrete foundation, and it is difficult to detect when the concrete is poured, and if it is found out afterwards, it is already "a done deal" and cannot be corrected. At the installation site, the bottom plate holes of the steel columns can only be reamed or slotted to make up for the defects caused by the deviation of the embedded bolts. This situation will have many adverse effects on the installation quality and construction progress of the steel structure. .

Invention content:

The purpose of this utility model is to provide a steel structure concrete base embedded bolt positioning device, said steel structure concrete base embedded bolt positioning device to solve the problem that the steel structure concrete base embedded bolts in the prior art are easy to deviate from the installation position , Technical issues affecting construction quality.

The steel structure concrete base embedded bolt positioning device of the utility model, the steel structure concrete base embedded bolt positioning device is composed of an upper formwork, a lower formwork and a bolt casing, and the upper formwork and the lower formwork are arranged in an up and down Arranged in parallel, the upper template and the lower template are rectangular, and their corresponding side lengths are equal, the length of the upper template and the lower template is 10 mm shorter than the length of the cross-section of the concrete-based steel mold when pouring, and the The width of the upper template and the lower template is 10 mm smaller than the width of the concrete-based steel mold cross section when pouring, and the bolt sleeves are respectively welded on the upper template and the lower template up and down, and the bolt sleeves Perpendicular to the upper template and the lower template, the inner diameter of the bolt casing is 5 mm larger than the diameter of the embedded bolt, and a Bolt holes, the diameter of the bolt holes is 1 mm larger than the diameter of the embedded bolts, and feed holes are correspondingly opened in the center of the upper template and the lower template.

Further, positioning eyes are respectively stamped on the horizontal and vertical centerlines of the upper template.

Further, positioning notches are provided on the four sides of the upper template.

Further, two positioning notches are provided on each side of the upper template.

Further, the positioning eye is composed of five dimples and is in the shape of a cross.

Compared with the prior art, the utility model has positive and obvious effects. The utility model adopts an upper formwork, a lower formwork and a bolt casing in the pre-embedded bolt positioning device of the steel structure concrete base, so that the pre-bolts can be fixed on the positioning device in advance, and the upper formwork and the concrete base steel mold can be positioned between the upper formwork and the concrete base steel mold. Fix the position of the pre-bolts, and remove the pre-embedded bolt positioning device of the steel structure concrete foundation after the concrete pouring is completed, which can greatly improve the precise positioning of the pre-embedded bolts in the independent foundation, and the shape and position tolerance can be controlled within ±2mm, so that It brings great convenience to the subsequent installation of the main column of the steel structure, and also eliminates many non-standard installation work such as on-site fire, opening, and reaming, which can improve the quality of steel structure installation and improve the progress of steel structure installation.

Description of drawings:

Fig. 1 is a structural schematic diagram of a steel structure concrete foundation embedded bolt positioning device of the present invention.

Fig. 2 is a schematic diagram of the use of the steel structure concrete foundation embedded bolt positioning device of the present invention.

Detailed ways:

Example 1:

As shown in Figure 1 and Figure 2, the steel structure concrete base embedded bolt positioning device of the present utility model, the steel structure concrete base embedded bolt positioning device is composed of an upper formwork 1, a lower formwork 2 and a bolt casing 3, The upper template 1 and the lower template 2 are arranged in parallel up and down, the upper template 1 and the lower template 2 are rectangular, and the corresponding side lengths are equal, and the length ratio of the upper template 1 and the lower template 2 is water The length of the cross-section of the concrete-based steel mold 4 during pouring is 10 millimeters smaller, and the width of the upper template 1 and the lower template 2 is 10 millimeters smaller than the width of the concrete-based steel mold 4 cross-section during pouring. 3. The upper and lower parts are respectively welded on the upper formwork 1 and the lower formwork 2, the bolt sleeve 3 is perpendicular to the upper formwork 1 and the lower formwork 2, and the inner diameter of the bolt sleeve 3 is embedded The diameter of the bolt 5 is 5 mm larger, and a bolt hole 6 is provided at the connection between the upper template 1 and the lower template 2 and the bolt sleeve 3, and the diameter of the bolt hole 6 is larger than the diameter of the embedded bolt 5 Larger than 1 mm, a square feed hole 7 is correspondingly provided in the center of the upper template 1 and the lower template 2, and the feed hole 7 is as large as possible, so that the concrete can enter smoothly and the vibrating rod is inserted.

Further, positioning eyes 8 are respectively stamped on the horizontal and vertical centerlines of the upper template 1 .

Further, positioning notches 9 are provided on four sides of the upper template 1 .

Further, two positioning notches 9 are provided on each side of the upper template 1 .

Further, the positioning eye 8 is composed of five dimples in a cross shape.

Specifically, according to the position of the current embedded bolts, the steel structure concrete-based embedded bolt positioning device is customized, and it is placed in the concrete-based steel mold, and the positioning eye 8 and the positioning line of the construction lofting are punched with the cross pattern on the upper template. 41 and 42 overlap consistently to ensure that the internal bolts in the concrete are positioned by the pre-embedded bolt positioning device of the steel structure concrete foundation, and accurately meet the design requirements. The heads of the pre-embedded bolts are screwed into the nuts to support the upper formwork and the lower formwork. It is necessary to consider retaining the leveling layer of fine sand and stone, put the steel structure concrete foundation embedded bolt positioning device in the concrete mold, screw in the nut (grease or wrap the head bolt) on the bolt position exposed on the upper formwork, Use wedge-shaped wood to correct the working position of the positioning sleeve in the notch of the formwork and the concrete-based steel form.

Claims (5)

1. A steel structure concrete base embedded bolt positioning device is characterized in that: the steel structure concrete base embedded bolt positioning device is composed of an upper formwork, a lower formwork and a bolt casing, and the described upper formwork and lower formwork It is arranged in parallel up and down, the upper formwork and the lower formwork are rectangular, and their corresponding side lengths are equal, and the length of the upper formwork and the lower formwork is 10 mm shorter than the length of the concrete-based steel mold cross section when pouring, The width of the upper formwork and the lower formwork is 10 mm smaller than the width of the cross-section of the concrete base steel form when pouring, and the bolt sleeves are welded on the upper formwork and the lower formwork respectively. The casing is perpendicular to the upper template and the lower template, and the inner diameter of the bolt casing is 5 mm larger than the diameter of the embedded bolt. A bolt hole is provided, and the diameter of the bolt hole is 1 mm larger than that of the embedded bolt, and a feeding hole is correspondingly provided in the center of the upper template and the lower template. 2. The positioning device for pre-embedded bolts in steel structure concrete foundation according to claim 1, characterized in that positioning eyes are stamped on the horizontal and vertical centerlines of the upper formwork respectively. 3. The pre-embedded bolt positioning device for steel structure concrete foundation according to claim 1, characterized in that: positioning notches are provided on the four sides of the upper template. 4. The pre-embedded bolt positioning device for steel structure concrete foundation according to claim 1, characterized in that: two positioning notches are provided on each side of the upper template. 5. The positioning device for pre-embedded bolts in steel structure concrete foundation according to claim 1, characterized in that: said positioning eye is formed of five small concaves in a cross shape.

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