CN220451243U - Anchoring piece matched with setting of steel stud - Google Patents

Abstract

The utility model discloses an anchor set with conforming steel bolts, which belongs to the technical field of steel bar connection construction in construction projects. It includes an anchor end and a ribbed steel bar. A plurality of wing plates are provided around the anchor end. An escape groove is formed between the plates, and the end surface of the insertion end of the anchor end and the bottom surface of the wing plate are on the same plane; the center of the anchor end is provided with an internal threaded hole that is connected to the external thread of the end of the ribbed steel bar. The end of the ribbed steel bar is fixed with an anchor end to avoid the situation where the length of the steel bar is insufficient due to the construction of curved anchors, or the space is insufficient and the construction of curved anchors cannot be used. By designing wing plates on the anchoring ends and designing avoidance grooves between the wing plates, the avoidance grooves fit the studs on the surface of the steel to avoid collision between the two. At the same time, the three wing plates also increase the pressure-bearing area. Improve anchoring performance.

Description

An anchor set with conformable steel bolts

Technical field

The utility model relates to the technical field of steel bar connection construction in construction projects, and in particular to an anchor set with conforming steel bolts.

Background technique

At present, in order to meet the anchorage length requirements of the beam longitudinal bars at the steel-concrete joints, the following two methods are usually used to anchor the beam longitudinal bars: 1. Add steel corbels to the outer wings of the column steel, and weld the beam steel bars to the corbels. on the legs; 2. Make holes in the column steel web, so that the beam longitudinal bars can pass through the holes to meet the anchorage length requirements. Method 1 is not only complex in construction, but also difficult to guarantee the welding quality, which directly affects the mechanical properties of the joint; Method 2 is easy to perforate the steel plate. It weakens the bearing capacity of steel and causes stress concentration. In addition, the steel bars in the node area are dense, complex in shape, and the reinforcement ratio is high. The longitudinal bars of the beams are anchored with hooks at the end of the steel bar or the steel bars are bent, which can easily lead to crowded steel bars in the node area and difficulty in pouring.

There are already some anchoring methods used for profiled steel-concrete composite structures. For example, patent document CN 203284972U uses a CABR (CABR is a registered trademark) anchor plate with straight threaded bolts, which includes anchoring steel bars and CABR anchoring plates. The anchoring end of the anchoring steel bars is fixedly connected to the CABR anchoring plate, and there are straight threads on the anchoring steel bars. The anchoring steel bars and CABR anchor plates are connected through straight threads. The CABR anchor plate is easy to collide with the studs on the surface of the steel.

Utility model content

In order to overcome the shortcomings of the prior art, the technical problem to be solved by the present utility model is to propose an anchor that is fitted with a profiled steel bolt. The shape is designed to fit the bolt on the surface of the profiled steel to avoid collision between the two and at the same time increase the pressure-bearing capacity. area to improve anchoring performance.

To achieve this purpose, the utility model adopts the following technical solutions:

The utility model provides an anchor equipped with conformable steel bolts, which includes an anchor end and a ribbed steel bar. A plurality of wing plates are provided around the anchor end, and an escape groove is formed between the wing plates. The end surface of the insertion end of the anchor end and the bottom surface of the wing plate are on the same plane; the center of the anchor end is provided with an internal threaded hole that is connected to the external thread of the end of the ribbed steel bar.

A preferred technical solution of the present invention is that there are three wing plates, and the angle between the wing plates is 120°.

The preferred technical solution of the present invention is that the cross-sectional shape of the wing plate is a right-angled trapezoid, the lower bottom edge of the right-angled trapezoid is located on the end surface where the wing plate is connected to the anchor end, and the right-angled side of the trapezoid is located on the anchor end. on the end face of the insertion end.

The preferred technical solution of the present invention is that the connection length h between the anchor end and the ribbed steel bar is between 1.0d and 2.0d, and d is the diameter of the ribbed steel bar.

A preferred technical solution of the present invention is that the cross-sectional area of the anchor end is between 2.5 and 3 times the cross-sectional area of the ribbed steel bar.

A preferred technical solution of the present invention is that the cross-sectional shape of the anchoring end is circular or polygonal.

A preferred technical solution of the present invention is that the internal thread of the anchor end and the external thread of the ribbed steel bar end are straight threads with a triangular tooth shape.

The beneficial effects of this utility model are:

The utility model provides an anchor set with conforming steel bolts, and the end of the ribbed steel bar is fixed with an anchor end, thereby avoiding the situation that the length of the steel bar is insufficient due to the construction of curved anchors, or the construction of curved anchors cannot be used due to insufficient space. By designing wing plates on the anchoring ends, and designing avoidance grooves between the wing plates, the avoidance grooves fit the studs on the surface of the steel to avoid collision between the two. At the same time, the three wing plates also increase the pressure-bearing area. Improve anchoring performance.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the anchor provided by the conforming steel bolt provided by the specific embodiment of the present invention;

Figure 2 is a schematic structural diagram of the anchor end of the anchor provided by the conforming steel bolt provided by the specific embodiment of the present invention;

Figure 3 is a schematic diagram of the installation of anchors provided by the conforming steel studs provided by the specific embodiment of the present invention;

Figure 4 is a schematic diagram of part A in Figure 3;

In the picture:

1. Anchor end; 2. Ribbed steel bar; 3. Wing plate; 4. Avoidance groove; 6. Internal threaded hole; 7. Section steel; 8. Bolt.

Detailed ways

The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementations.

As shown in the figure, this embodiment provides an anchor equipped with conformable steel bolts, including an anchor head 1 and a ribbed steel bar 2. The center of the anchor head 1 is provided with an external thread 5 that matches the end of the ribbed steel bar 2. The connecting internal thread hole 6 is provided with a plurality of wing plates 3 around the anchor head 1. The wing plates 3 and the anchor head 1 are integrally formed of cast iron or ductile iron, and the end face and wings of the insertion end of the anchor head 1 are The bottom surface of the plate 3 is on the same plane, so that the anchor end 1 and the wing plate 3 form a shape with a pressure-bearing plate and a nut. An escape groove 4 is formed between the wing plates 3. When the ribbed steel bar 2 is anchored, the escape groove 4 is formed. The groove 4 fits the studs 8 on the surface of the profiled steel 7 to avoid collision between the two.

Furthermore, there are three wing plates 3, and the included angle between the wing plates 3 is 120°. The cross-sectional shape of the wing plate 3 is a right-angled trapezoid. The lower bottom edge of the right-angled trapezoid is located on the end surface where the wing plate 3 is connected to the anchor head 1, and the right-angled side of the trapezoid is located on the end surface of the insertion end of the anchor head 1. The three wing plates 3 also increase the pressure-bearing area and improve the anchoring performance. And when installing the anchor end 1, the construction personnel can pinch the wing plate 3 and screw the anchor end 1 onto the ribbed steel bar 2. The installation is easy and no additional installation tools are required.

Specifically, the connection length h between the anchor end 1 and the ribbed steel bar 2 is between 1.0d and 2.0d, and d is the diameter of the ribbed steel bar 2 . The cross-sectional area of the anchor end 1 is between 2.5 and 3 times the cross-sectional area of the ribbed steel bar 2.

The cross-sectional shape of the anchoring head 1 may be circular or polygonal.

The internal thread hole 6 in the center of the anchor end 1 has an ordinary internal thread with a triangular tooth shape. Its diameter and thread size match the diameter of the ribbed steel bar 2 that needs to be anchored and the special external thread at the end. The above-mentioned internal thread is Straight threads can be processed with special taps. The end threads of threaded steel bars for construction can be processed with special equipment, either by rolling threads or by cutting threads. An anchoring device is formed by screwing the anchor end 1 with the special thread of the steel bar end at the ribbed steel bar 2 prefabrication site or construction site.

The present invention is described through preferred embodiments. Those skilled in the art will know that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the present invention. The present utility model is not limited by the specific embodiments disclosed here, and other embodiments falling within the claims of the present application belong to the protection scope of the present utility model.

Claims (7)

1. The utility model provides an anchor assembly that agrees with shaped steel peg setting, includes anchor end (1) and ribbed steel bar (2), its characterized in that:

a plurality of wing plates (3) are arranged around the anchoring end head (1), avoiding grooves (4) are formed between the wing plates (3), and the end face of the insertion end of the anchoring end head (1) and the bottom face of the wing plate (3) are on the same plane;

the center of the anchoring end head (1) is provided with an internal threaded hole (6) which is in matched connection with the external threads at the end part of the ribbed steel bar (2).

2. The anchor of claim 1, wherein the anchor is configured to engage a steel peg, and wherein:

the three wing plates (3) are arranged, and the included angle between the wing plates (3) is 120 degrees.

3. The anchor of claim 2 adapted to be placed in engagement with a steel peg, wherein:

the cross section of the wing plate (3) is right trapezoid.

4. An anchor according to claim 3, adapted to be placed in engagement with a steel peg, wherein:

the connection length h of the anchoring end head (1) and the ribbed steel bar (2) is 1.0d-2.0d, and d is the diameter of the ribbed steel bar (2).

5. The anchor for mating with a steel peg arrangement of claim 4, wherein:

the cross section area of the anchoring end head (1) is 2.5-3 times of that of the ribbed steel bar (2).

6. The anchor of claim 1 or 5, wherein the anchor is configured to engage a steel peg:

the cross section of the anchoring end head (1) is circular or polygonal.

7. The anchor of claim 1, wherein the anchor is configured to engage a steel peg, and wherein:

the internal thread of the anchoring end head (1) and the external thread at the end part of the ribbed steel bar (2) are triangular tooth-shaped straight threads.