Anti-swing shock isolation device

Abstract

The invention discloses an anti-swing shock isolation device. The device comprises a hollow inner cylinder, a hollow outer cylinder, a movement mechanism and a prestressed bolt. The inner cylinder is vertically and fixedly arranged on the ground or a non-protection structure; the inner cylinder is sleeved with the outer cylinder; the movement mechanism is arranged between the outer cylinder and the inner cylinder; the prestressed bolt horizontally penetrates through the side plate of one of the outer cylinder and the inner cylinder to be fixedly connected to the movement mechanism, and horizontally extrudes the movement mechanism on the side surface of the other one of the outer cylinder and the inner cylinder; and the protected structure is installed on the outer side surface or the upper surface of the outer cylinder. According to the anti-swing shock isolation device, the outer cylinder and the inner cylinder are both vertically arranged, and the prestressed bolt penetrates through the side plate of one of the outer cylinder and the inner cylinder to enable the movement mechanism to abut against the side surface of the other one, so that the outer cylinder can only move up and down in the vertical direction relative to the inner cylinder under the action of external force; and therefore, the protected structure can move up and down in the vertical direction under the action of external force, the problem of torsional vibration or overturning of the protected structure is avoided, and the shock insulation effect is enhanced.

Description

technical field [0001] The invention relates to the technical field of shock-isolation bearings, in particular to an anti-sway shock-isolation device. Background technique [0002] Earthquakes are sporadic, multi-directional, and strong. For high-value important structures, facilities or equipment, earthquake damage is often a great potential hidden danger. Seismic isolation technology is a relatively mature technical means to resist earthquake disasters. It can better isolate the earthquake action. However, the existing vertical seismic isolation device cannot solve the sway problem caused by the eccentricity of the protected structure and the high center of gravity during use, which leads to a large sway of the protected anti-sway seismic isolation device structure under the action of the earthquake, and then Causes the danger of torsional vibration or overturning of the protected structure, and also leads to the weakening of the vibration isolation effect of the vertical...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that under the action of an earthquake, during the use of the existing vertical seismic isolation device, the protected structure will sway greatly, which will lead to the risk of torsional vibration or overturning of the protected structure, and also cause the vertical seismic isolation device to fail. For the problem of weakened shock isolation effect, the present invention proposes an anti-sway shock isolation device, including: a hollow inner cylinder, a hollow outer cylinder, a movement mechanism and a prestressed bolt for pressing against the inner cylinder and the outer cylinder ;

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