CN203034474U - Locating device used in steel structure embedded bolt group - Google Patents

Abstract

The utility model relates to a positioning device for pre-embedded bolt groups in steel structures, which is characterized in that it comprises a positioning plate with a group of positioning holes, and locking nuts for respectively fixing the bolts in the corresponding positioning holes. Insert the top of the pre-embedded bolt into the positioning hole, and then lock it on both sides of the positioning plate with lock nuts, then weld the pre-embedded bolt into one body with steel bars, then put it into the steel structure formwork, and use the positioning The instrument is accurately positioned. After the positioning, the small end of the support is welded to the embedded bolt, and the other end is pushed inside the formwork of the steel structure to ensure the stability of the positioning device and the steel structure. Finally, concrete is poured and the positioning device is checked and corrected. The utility model has the advantages of simple structure, convenient processing and simple operation, can effectively and accurately locate bolt groups, reduce the difficulty of correction and repair, and is suitable for wide popularization and use.

Description

A positioning device for pre-embedded bolt groups in steel structures

technical field

The utility model relates to the field of building construction, in particular to a positioning device for pre-embedded bolt groups in steel structures.

Background technique

In the field of building construction, the anchor bolts of various foundations usually use pre-embedded bolts. This type of pre-embedded bolts has many specifications, large quantities and high construction accuracy requirements, and individual bolts are prone to large deviations after pre-embedding. Since it is difficult to accurately locate the embedded bolts, and the concrete is likely to cause the bolts to shift during the pouring process, once the bolts deviate, it will have a great impact on the quality of the structure or equipment installation.

At present, the total station is usually used to stake out the axis network, and then use the axis network as a reference to measure and position individual bolts. The disadvantages of this method are: before construction, the bolts of the bolt group need to be positioned and adjusted one by one, the installation is cumbersome and the construction is difficult, so errors are more likely to occur. In addition, the bolt groups need to be reviewed one by one after construction. If the bolt groups are offset during the construction process, it will be difficult to repair (adjust) and correct.

Utility model content

The technical problem to be solved by the utility model is to provide a positioning device for pre-embedded bolt groups of steel structures with simple structure, convenient manufacture, low cost and convenient construction for the shortcomings of the above problems.

According to the utility model, a positioning device for pre-embedded bolt groups in steel structures is provided, which includes a positioning plate with a set of positioning holes, and lock nuts for respectively fixing the bolts in the corresponding positioning holes.

In one embodiment, the positioning plate is a hollow ring or a hollow rectangle.

In one embodiment, the positioning plate comprises at least two connectors extending within the hollow portion.

In one embodiment, the connectors intersect at the geometric center of the positioning plate.

In one embodiment, the positioning device further includes a T-shaped support, the small end of the support is welded to the bolt, and the large end leans against the formwork of the steel structure.

In one embodiment, the lock nuts are arranged on both sides of the positioning plate.

In one embodiment, the positioning plate is a circular plate.

According to the utility model, the positioning device for pre-embedded bolt groups in steel structures has a simple structure, simplifies the operation process of bolt group positioning, improves the positioning accuracy of bolt groups, and saves construction costs. The utility model can effectively and accurately locate bolt groups and reduce the difficulty of correction and repair (adjustment).

Description of drawings

The utility model will be further described below in conjunction with the accompanying drawings.

Fig. 1 has shown the plan view of the locating device used for the pre-embedded bolt group of steel structure of the present utility model.

FIG. 2 shows a side view of the positioning device shown in FIG. 1 with embedded bolts 6 .

Fig. 3 shows the construction schematic diagram of the positioning device for the pre-embedded bolt group of the steel structure according to the present invention.

Detailed ways

The principles and features of the present utility model are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the utility model, and are not used to limit the scope of the utility model.

Fig. 1 shows a positioning device 21 for embedded bolt groups in steel structures. The positioning device 21 includes a positioning plate 1 with a set of positioning holes 2 , and locking nuts 3 for fixing bolts into corresponding positioning holes 2 . In order to form a better fixation, the locking nut 3 locks the bolt 6 on both sides of the positioning plate 1, as shown in FIG. 2 .

The profile of the positioning plate 1 can be changed accordingly according to the desired distribution of the bolts 6 to be embedded. For example, when the pre-embedded bolts 6 are distributed in a circle, the positioning plate 1 is processed into a circle. Considering the purpose of reducing weight and improving overall rigidity, the circular positioning plate 1 is usually made hollow, that is, ring-shaped. In order to avoid deformation of the annular positioning plate 1 , at least two connecting pieces 4 should be provided in the hollow portion of the positioning plate 1 . The two connecting pieces 4 can be made of flat steel, for example, they intersect preferably perpendicularly and at the geometric center of the circular positioning plate 1 (ie the center of circle 5 ). The center of circle 5 can be conveniently used for accurate positioning during construction.

It is easy to understand that when the bolts 6 to be pre-embedded are distributed in other ways, such as distributed as a rectangle, the positioning plate 1 can be formed as a plate of a corresponding shape, such as a hollow rectangular plate, the geometric center of which is a rectangular diagonal The intersection of the lines.

FIG. 2 shows the state where the bolt 6 is inserted into the positioning device 21 . As shown in the figure, the positioning device 21 also includes a T-shaped support 10 . The small end of the supporting member 10 is welded on the bolt 6 , and the large end tightly leans against the inside of the formwork 7 of the steel structure, so as to ensure that the positioning device 21 forms a stable whole with the formwork 7 of the steel structure.

In this embodiment, Fig. 3 shows a schematic diagram of the construction of the positioning device. The positioning device 21 is installed inside the formwork 7 of the steel structure. The formwork 7 of the steel structure includes a plurality of main reinforcements 8 that are similar to the shape of the foundation to be built and evenly distributed in the foundation. These main reinforcements 8 are stabilized by the stirrups 9 welded together. Since the foundation structure is not the content of the utility model application, it will not be described in detail here.

According to the positioning device 21 of the steel structure pre-embedded bolt group of the present invention, the specific implementation process is to firstly insert the to-be-embedded bolt 6 into the positioning hole 2 of the positioning device 21, adjust the height, and use the lock nut 3 to place the pre-embedded bolt 6 into the positioning hole 2 of the positioning device 21. The buried bolts 6 are locked on both sides of the positioning plate 1 (as shown in FIG. 2 , above and below the positioning plate 1 ). Then the bottom ends of the pre-embedded bolts 6 are welded together with steel bars, thereby ensuring a more stable positioning of the pre-embedded bolts 6 .

Then, the positioning device 21 is installed together with the bolt 6 inside the formwork 7 of the steel structure, and the center of circle 5 of the positioning device 21 is accurately positioned with a total station, and then the elevation and level of the positioning device 21 are positioned with a level and a level Spend.

After the positioning is completed, the small end of the support 10 is welded on the bolt 6, and the large end is tightly pressed against the inside of the steel structure formwork 7, ensuring that the positioning device 21 forms a stable whole with the steel structure formwork 7 . Finally, concrete is poured, the positioning device 21 is checked and corrected, and the construction is completed.

Tests have proved that by adopting the positioning device 21 for pre-embedded bolt groups in steel structures according to the utility model, the accuracy of the bolt groups can be effectively guaranteed.

Therefore, according to the positioning device 21 for the pre-embedded bolt group of the steel structure according to the present invention, the problems such as difficult positioning of the pre-embedded bolts, complex operation and long repair and correction time can be effectively solved.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (7)

1. A positioning device for pre-embedded bolt groups in steel structures, characterized in that it includes a positioning plate with a group of positioning holes, and lock nuts for respectively fixing the bolts in the corresponding positioning holes. 2. The positioning device according to claim 1, wherein the positioning plate is a hollow ring or a hollow rectangle. 3. The positioning device according to claim 2, wherein the positioning plate comprises at least two connecting members extending in the hollow portion. 4. The positioning device according to claim 3, characterized in that, the connecting elements intersect at the geometric center of the positioning plate. 5. The positioning device according to any one of claims 1 to 4, characterized in that, the positioning device further comprises a T-shaped support, the small end of the support is welded on the bolt, and the large end is against the bolt. On the formwork of the steel structure. 6. The positioning device according to any one of claims 1 to 4, wherein the locking nuts are arranged on both sides of the positioning plate. 7. The positioning device according to claim 1, wherein the positioning plate is a circular plate.

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