Device for testing anti-drawing performance of anchor for external wall insulation board

Abstract

The invention relates to the technical field of drawing experiments. The invention further discloses a device for testing the anti-drawing performance of the anchor for the external wall insulation board. The device comprises a testing shell and a gear installed in the testing shell. A rack meshed with the gear is arranged in the test shell, and a baffle plate is welded on the rack. One side of the baffle is fixedly connected with a threaded rod. The threaded rod penetrates through the side wall of the test shell and extends outwards. The threaded rod is movably connected with the side wall ofthe test shell. The threaded rod is movably sleeved with a moving ring, the moving ring is connected with the threaded rod through a regulation and control mechanism, the top end and the bottom end of the moving ring are symmetrically and fixedly connected with U-shaped rods respectively, the other ends of the two U-shaped rods are jointly and fixedly connected with an anchor sleeve, and an arc-shaped drawing plate is arranged in the anchor sleeve. The device for testing the anti-drawing performance of the anchor for the external wall insulation board not only facilitates stable fixation of anchors of different models, but also has a good self-lubricating function.

Description

technical field [0001] The invention relates to the technical field of pulling experiments, in particular to a device for testing the pulling-out resistance of anchors used for external wall insulation boards. Background technique [0002] In recent years, the field of anchoring engineering has proposed a new structural system of enlarged head anchors. Studies have found that the bearing capacity of enlarged head anchors is increased by an average of 20% to 30% or even 66% compared with ordinary anchors. When the enlarged head anchor is stressed, the axial strain drops obviously, which shows that the enlarged head anchor has obvious end-bearing effect. [0003] In the patent with the Chinese patent authorization number CN209069704U, a pull-out test device for external wall thermal insulation anchors is disclosed. The handover point on the side is rotated, and then the half ring is separated from the open ring, so that their openings are opened, so that the movable rod drive...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies of the prior art, the present invention provides a test device for the pull-out resistance of anchors for external wall insulation boards, which has the advantages of stably fixing the anchors and self-lubricating protection, and solves the problem of external wall insulation anchors in the prior art. The nail pull test device is inconvenient to stably fix the anchor, and it does not have the problem of lubrication protection

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