Pre-installed mechanical anchoring device and method

Abstract

A pre-installed mechanical anchoring device includes a reinforcing bar and an anchor head. The reinforcing bar includes an end with external threads. The anchor head has a first end and a second end, and a threaded hole is formed therein, the threaded hole penetrating the first end of the anchor head and having internal threads. A wall is formed between the innermost side of the threaded hole and the second end of the anchor head, the wall thickness being less than 10 mm. Because this invention first assembles the pre-installed mechanical anchoring device in an open space, ensuring that the end face of the reinforcing bar can abut against the innermost side of the threaded hole of the anchor head, and that the end of the reinforcing bar is completely fixed to the threaded hole of the anchor head before proceeding with the subsequent anchoring process, this invention completely eliminates the need for bolts. Because the wall does not need to be penetrated by bolts, the wall thickness can be controlled to be less than 10 mm, thus reducing the manufacturing cost of the anchor head.

Claims

1. A pre-installed mechanical anchoring device, comprising: A reinforcing bar, including an end having external threads; An anchor head having a first end and a second end and a threaded hole, the threaded hole penetrating the first end of the anchor head and having an internal thread, the end of the reinforcing bar being fixed to the threaded hole, and the end face of the end of the reinforcing bar abutting against the innermost side of the threaded hole; wherein, the anchor head forms a wall between the innermost side of the threaded hole and the second end of the anchor head, the wall having a thickness of 5 mm.

2. The pre-installed mechanical anchoring device as described in claim 1, wherein, A through hole is made in the wall surface, and the diameter of the through hole is smaller than the diameter of the screw hole.

3. The pre-installed mechanical anchoring device as described in claim 1, wherein, The screw hole is a blind hole.

4. A pre-installed mechanical anchoring method, comprising the following steps: In an open space, fixing one end of a reinforcing bar to a screw hole of an anchor head, wherein the end face of the reinforcing bar abuts against the innermost side of the screw hole, thereby obtaining a pre-installed mechanical anchoring device, wherein... The end of the reinforcing bar has an external thread, the threaded hole penetrates a first end of the anchor head and has an internal thread, the anchor head forms a wall between the innermost side of the threaded hole and a second end of the anchor head, the wall having a thickness of 5 mm; a plurality of reinforcing bars with pre-installed mechanical anchoring devices are used to form a reinforcing steel structure, and the plurality of anchor heads of the pre-installed mechanical anchoring devices are inserted into the reinforcing steel structure; and a concrete is poured into the reinforcing steel structure, which, after drying, anchors the anchor heads of the pre-installed mechanical anchoring devices.

5. The pre-installed mechanical anchoring method as described in claim 4, wherein, A through hole is made in the wall surface, and the diameter of the through hole is smaller than the diameter of the screw hole.

6. The pre-installed mechanical anchoring method as described in claim 4, wherein, The screw hole is a blind hole.

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