Spiral spring three-dimensional shock-isolation support

Abstract

The invention relates to a spiral spring three-dimensional shock-isolation support. The support includes an upper connection plate and a lower connection plate which are parallel to each other; and four back pressure type spiral spring dampers arranged between the upper connection plate and the lower connection plate, wherein two ends of a connection rod of each back pressure type spiral spring damper are connected to the upper connection plate and the lower connection plate through universal bulbs to form a quadrangular frustum structure having two opposite side surfaces which are symmetrically to each other. The three-dimensional shock-isolation support can achieve a real sense of three-dimensional shock-isolation, and has an anti-overturning function.

Description

technical field [0001] The invention relates to a building anti-vibration (or vibration) device, in particular to a three-dimensional shock-isolation device. Background technique [0002] The three-dimensional seismic isolation device is an anti-seismic isolation device installed between the building and the foundation, which can effectively absorb and dissipate externally input energy from multiple dimensions, so as to achieve the purpose of protecting the safety of the building. Three-dimensional seismic isolation devices are usually composed of vertical and horizontal seismic isolation bearings, which absorb vertical and horizontal seismic waves respectively. [0003] As we all know, the development of three-dimensional seismic isolation devices depends on the technical progress of the damper. At present, there are three main types of mainstream dampers that are actually used in practical applications, namely laminated rubber dampers, metal spring dampers (mainly disc sp...

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Problems solved by technology

However, since the damping characteristics of viscoelastic materials and disc springs are quite different, and how much the two are related, these are to be determined through experiments; especially, when the three-dimensional vibration isolation system is compressed to During tension transition, although the disc spring does not work, the energy stored in the disc spring will be superimposed on the viscoelastic damper, so that the viscoelastic damper can obtain a larger initial acceleration, while the viscoelastic damper is a A speed-sensitive damper, obviously the impact of the energy stored in the disc spring on the viscoelastic damper cannot be ignored, but how to calculate the impact is a difficult matter

Another example is a three-dimensional shock-isolating device disclosed in a patent application with the publication number CN101761147A. When the device transitions from compression to tension, the energy stored in the six disc springs will also be transmitted to the diamond-shaped steel plate damper through the screw rod. There is also the problem of design and calculation difficulties

In addition, the horizontal limit and tensile mechanism composed of sliders, sliding guide rails and high-strength cables in the scheme of the CN101761147A patent application not only makes the design and calculation difficult, but also increases the complexity of the entire seismic isolation system

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