Anchor head device of finish rolling twisted steel anti-floating anchor rod
By designing an anchor head device including anchor head steel plate, anchor nut and stiffening plate, and connecting through welding, the problem of bending and deformation of the traditional anchor head device when subjected to large tension is solved, and the pull-out effect and overall stiffness are improved.
Patent Information
- Application Number
- CN202421371921.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-17
AI Technical Summary
The traditional fine-rolled threaded steel bar anti-floating anchor head device may bending and deform the anchor head plate when it withstands a large tension, affecting the anti-pull effect.
An anchor head device including anchor head steel plate, anchor nut and stiffener plate is designed, and they are connected together by welding to improve the overall stiffness, and the anchor nut also serves as a positioning nut through welding.
The overall stiffness and pull-out resistance of the anchor head device are improved, and the installation height of the anchor head steel plate in the base plate and the impact shear force of the concrete below are enhanced.
Smart Images
Figure CN222666790U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of anti-floating anchor rods, in particular to an anchor head device of a precision-rolled threaded steel bar anti-floating anchor rod. Background Art
[0002] In the construction of anti-floating anchor bolts, three materials are mainly used as anchor bolt bars: hot-rolled ribbed steel bars, steel strands and precision-rolled threaded steel bars. The traditional precision-rolled threaded steel bar anti-floating anchor bolt head device usually sets an anchor head steel plate at the end of the steel bar, installs anchor nuts on the top of the steel plate, and installs positioning nuts or positioning steel bars on the bottom to ensure that the anchor head steel plate is fixed in position during the pouring of the bottom slab concrete.
[0003] However, when this type of anchor head device is subjected to a large tensile force, the anchor head steel plate may bend and deform, affecting the pull-out resistance effect, and needs to be improved. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model aims to provide an anchor head device for a precision-rolled threaded steel bar anti-floating anchor rod, which has the advantage of ensuring an anti-pullout effect.
[0005] The above technical purpose of the utility model is achieved through the following technical scheme: an anchor head device of a fine-rolled threaded steel bar anti-floating anchor rod, comprising an anchor head steel plate, an anchor nut and a stiffening plate, a mounting hole is opened in the center of the anchor head steel plate, the anchor nut is coaxially welded and fixed to the center position of the anchor head steel plate, and the two sides of the stiffening plate are respectively welded and fixed to the anchor head steel plate and the anchor nut.
[0006] In a preferred example, the utility model can be further configured as follows: four stiffening plates are provided and are evenly distributed around the anchor nut; the anchor head steel plate is provided in a square shape, and the stiffening plates extend to the four vertex positions of the anchor head steel plate.
[0007] In a preferred example, the utility model can be further configured as follows: the extension distances of the four corners of the anchor head steel plate are the same as the lengths of the anchor nut, and the stiffening plate is arranged in the shape of an isosceles right triangle.
[0008] In a preferred example, the utility model can be further configured as follows: a plurality of recessed spaces are formed on the anchor head steel plate, and the recessed spaces are distributed between two adjacent stiffening plates.
[0009] In a preferred example, the present invention can be further configured as follows: the recessed space is arranged in an equilateral triangle shape.
[0010] In a preferred example, the utility model can be further configured as follows: a vertex position of the recessed space is aligned with the middle position of the outer edge of the anchor head steel plate.
[0011] In a preferred example, the present invention can be further configured as follows: two adjacent recessed spaces are respectively depressed upward and depressed downward.
[0012] In a preferred example, the utility model can be further configured as follows: the outer edge positions of the anchor head steel plates are bent to provide reinforcement angles, and the reinforcement angles are distributed on both sides of the top angle positions of the recessed space.
[0013] In a preferred example, the present invention can be further configured as follows: the bending direction of the reinforced angle is opposite to the recessed direction of the recessed space.
[0014] In summary, the utility model has the following beneficial effects:
[0015] 1. The anchor head device connects the anchor head steel plate, anchor nut and stiffening plate together by welding to improve the overall rigidity. At the same time, the anchor nut is welded to make it also serve as a positioning nut. Placing the anchor nut under the anchor head steel plate can increase the installation height of the anchor head steel plate in the base plate and improve the shear resistance of the concrete under the anchor head steel plate.
[0016] 2. The anchor head device has a simple structure and is easy to process. It can be processed in large quantities in the factory and then transported to the construction site. It can be quickly installed after the anchor rod is grouting and cured, saving manpower and material resources on the construction site and speeding up the construction progress. At the same time, the welding work is completed in the factory, reducing the safety risks on site. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a schematic structural diagram of Example 1;
[0018] Figure 2 is a schematic structural diagram of the mounting hole of Example 1;
[0019] Figure 3 It is a structural schematic diagram of Example 2.
[0020] Figure numerals: 1. Anchor head steel plate; 2. Anchor nut; 3. Stiffening plate; 4. Mounting hole; 5. Recessed space; 6. Reinforced angle. DETAILED DESCRIPTION
[0021] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0022] Embodiment 1:
[0023] like Figure 1 , Figure 2 As shown, an anchor head device of a precision-rolled threaded steel bar anti-floating anchor rod comprises an anchor head steel plate 1, an anchor nut 2 and a stiffening plate 3.
[0024] like Figure 1 , Figure 2 As shown, a mounting hole 4 is provided at the center of the anchor head steel plate 1, and the anchor head steel plate 1 mainly serves to bear the buoyancy of the groundwater on the bottom plate transmitted from the bottom plate in the vertical direction.
[0025] like Figure 1 , Figure 2 As shown, the anchor nut 2 is coaxially welded and fixed to the center of the anchor head steel plate 1. It mainly plays the role of fixing the height of the top anchor head steel plate 1 during installation and transferring the buoyancy borne by the anchor head steel plate 1 to the fine-rolled threaded steel bar during engineering application. Its specifications correspond to those of the fine-rolled threaded steel bar.
[0026] like Figure 1 , Figure 2 As shown, the two sides of the stiffening plate 3 are respectively welded and fixed to the anchor head steel plate 1 and the anchor nut 2, mainly to strengthen the deformation resistance of the anchor head steel plate 1. One side of the stiffening plate 3 is connected to the anchor head steel plate 1 through a double-sided fillet weld, and the other side is connected to the anchor nut 2 through a double-sided fillet weld.
[0027] Therefore, the anchor head device connects the anchor head steel plate 1, the anchor nut 2 and the stiffening plate 3 together by welding to improve the overall rigidity. At the same time, the anchor nut 2 is welded to also serve as a positioning nut. Placing the anchor nut 2 under the anchor head steel plate 1 can increase the installation height of the anchor head steel plate 1 in the building floor, and improve the shear resistance of the concrete at the floor position under the anchor head steel plate 1.
[0028] like Figure 1 , Figure 2 As shown, four stiffening plates 3 are provided and evenly distributed around the anchor nut 2, the anchor head steel plate 1 is arranged in a square shape, and the stiffening plates 3 extend to the four vertex positions of the anchor head steel plate 1. The extension distance of the four corner positions of the anchor head steel plate 1 is the same as the length of the anchor nut 2, and the stiffening plates 3 are arranged in the shape of an isosceles right triangle.
[0029] Since the four stiffening plates 3 are symmetrically arranged along the central axis of the anchor head steel plate 1, the three form a whole, thereby improving the reliability and strength of the overall device. At the same time, the stiffening plates 3 are arranged in an isosceles right triangle shape to achieve uniform force at each position of the anchor head steel plate 1, prevent stress concentration, increase the stability of the anchor head steel plate 1, and prevent the anchor head steel plate 1 from deformation.
[0030] Embodiment 2:
[0031] like Figure 3 As shown, a plurality of recessed spaces 5 are formed on the anchor head steel plate 1, and the recessed spaces 5 are distributed between two adjacent stiffening plates 3, and two adjacent recessed spaces 5 are recessed upward and downward, respectively. The recessed spaces 5 are formed in an equilateral triangle shape, and a vertex position of the recessed space 5 is aligned with the middle position of the outer edge of the anchor head steel plate 1.
[0032] Therefore, by adding an equilateral triangle-shaped recessed space 5 and staggering the openings of the recessed space 5, the structural strength of the anchor head steel plate 1 is effectively increased, the reliability and strength of the overall device are improved, and the shear resistance of the concrete at the bottom plate position below the anchor head steel plate 1 is ensured.
[0033] like Figure 3 As shown, the outer edge of the anchor head steel plate 1 is bent to provide a reinforcement angle 6 , which is distributed on both sides of the top corner of the recessed space 5 , and the bending direction of the reinforcement angle 6 is opposite to the recessed direction of the recessed space 5 .
[0034] Therefore, by adding a reinforcing angle 6 and making the bending direction of the reinforcing angle 6 opposite to the opening direction of the recessed space 5, the edge position of the anchor head steel plate 1 is reinforced, which effectively increases the structural strength of the anchor head steel plate 1, improves the reliability and strength of the overall device, and ensures the shear resistance of the concrete at the bottom plate position below the anchor head steel plate 1.
[0035] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.
Claims
1. An anchor head device for a precision-rolled threaded steel bar anti-floating anchor rod, characterized in that: The invention comprises an anchor head steel plate (1), an anchor nut (2) and a stiffening plate (3); a mounting hole (4) is provided at the center of the anchor head steel plate (1); the anchor nut (2) is coaxially welded and fixed to the center position of the anchor head steel plate (1); and two sides of the stiffening plate (3) are respectively welded and fixed to the anchor head steel plate (1) and the anchor nut (2).
2. The anchor head device of the precision-rolled threaded steel bar anti-floating anchor rod according to claim 1, characterized in that: Four stiffening plates (3) are provided and are evenly distributed around the anchor nut (2); the anchor head steel plate (1) is provided in a square shape, and the stiffening plates (3) extend to the four vertex positions of the anchor head steel plate (1).
3. The anchor head device of the precision-rolled threaded steel bar anti-floating anchor rod according to claim 2, characterized in that: The extension distances of the four corners of the anchor head steel plate (1) are the same as the lengths of the anchor nut (2), and the stiffening plate (3) is arranged in the shape of an isosceles right triangle.
4. The anchor head device of the precision-rolled threaded steel bar anti-floating anchor rod according to claim 2, characterized in that: A plurality of recessed spaces (5) are formed in a depression on the anchor head steel plate (1), and the recessed spaces (5) are distributed between two adjacent stiffening plates (3).
5. The anchor head device of the precision-rolled threaded steel bar anti-floating anchor rod according to claim 4, characterized in that: The recessed space (5) is arranged in the shape of an equilateral triangle.
6. The anchor head device of the precision-rolled threaded steel bar anti-floating anchor rod according to claim 5, characterized in that: A vertex position of the recessed space (5) is aligned with the middle position of the outer edge of the anchor head steel plate (1).
7. The anchor head device of the precision-rolled threaded steel bar anti-floating anchor rod according to claim 6, characterized in that: The two adjacent recessed spaces (5) are respectively recessed upward and downward.
8. The anchor head device of the precision-rolled threaded steel bar anti-floating anchor rod according to claim 7, characterized in that: The outer edge positions of the anchor head steel plate (1) are all bent to provide reinforcement corners (6), and the reinforcement corners (6) are distributed on both sides of the top corner positions of the recessed space (5).
9. The anchor head device of the precision-rolled threaded steel bar anti-floating anchor rod according to claim 8, characterized in that: The bending direction of the reinforcement angle (6) is opposite to the recessed direction of the recessed space (5).