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Anti-seismic anchor bolt

An anti-seismic anchor and screw technology, applied in the direction of connecting components, pins, mechanical equipment, etc., to achieve the effect of easy popularization and application, good practicability and reasonable overall design

Inactive Publication Date: 2016-06-01
SHANGHAI XIANGRUI FASTENER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Belleville washer anti-vibration assembly is used to further offset the excess stress that the double friction plate structure cannot offset

Method used

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Embodiment Construction

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] The invention discloses an anti-seismic anchor bolt, which is different from the prior art in that it includes a double-shrink screw 1, an external thread 2 is formed on the wall of one end of the double-shrink screw 1, and the other side of the double-shrink screw 1 One end is sequentially provided with a first conical flange 3, a second conical flange 4, an annular flange 5, a first conical flange 3 and a second conical flange along the wall of the double shrinkage screw from the end. The rod wall between 4 is covered with a first strong friction plate 6, and the second strong friction plate 7 is sleeved between the second tapered flange 4 and the annular flange 5. The external thread 2 at one end of the above-mentioned double shrinkage screw 1 There is at least one nut 8 screwed on at least one nut 8, and a spring washer 9 is sleeved on the double shrinkage scr...

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PUM

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Abstract

The invention discloses an anti-seismic anchor bolt. An external thread is formed on the rod wall of one end of a double contraction threaded rod, and the other end of the double contraction threaded rod is sequentially provided with a first tapered flange, a second tapered flange and an annular flange from the end along the rod wall of the double contraction threaded rod. The part, between the first tapered flange and the second tapered flange, of the rod wall is sleeved with a first strong friction sheet, and the part, between the second tapered flange and the annular flange, of the rod wall is sleeved with a second strong friction sheet. At least one nut is in screwed connection with the external thread at one end of the double contraction threaded rod. The position, on the inner side of the nut, of the double contraction threaded rod is further sleeved with a spring washer. The position, between the spring washer and the annular flange, of the double contraction threaded rod is sleeved with at least two large flat washers. The position, between the two large flat washers, of the double contraction threaded rod is sleeved with a saucer washer anti-seismic assembly. The anti-seismic anchor bolt has the advantages that the double friction sheets are matched with the saucer washer anti-seismic assembly, so that under the action of interaction force, damage to concrete caused by the stress of the anchor bolt is avoided, and the expansion anchor bolt can still be used when bearing dynamic loads.

Description

technical field [0001] The invention relates to the technical field of anchor bolts, in particular to an anti-seismic anchor bolt, and in particular to a mechanical connection structure of the anchor bolt. Background technique [0002] The existing anti-seismic anchor bolts adopt a single expansion structure. When receiving an external shock load, the internal stress cannot be eliminated. In addition, the middle of the anti-seismic anchor bolt basically uses a nylon ring for shock absorption. The nylon ring is damaged after being subjected to an external shock load, which is easy to As a result, the anchor bolt loses its effect, and the nylon ring must be replaced in time. Contents of the invention [0003] The object of the present invention is to provide an anti-seismic anchor bolt, which adopts a double friction plate structure and a dish washer anti-seismic component. When external load is applied, the double friction plates can offset the stress generated by each othe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B13/04
CPCF16B13/04
Inventor 杨维锐杨伟孙新波
Owner SHANGHAI XIANGRUI FASTENER CO LTD
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