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Anti-seismic fastening structure

A fastening structure and tight technology, applied in the direction of threaded fasteners, locking fasteners, connecting components, etc., to achieve the effect of a wide range of material selection, easy installation and use, and preventing nut loosening

Inactive Publication Date: 2020-12-01
LIYANG SIFANG STAINLESS STEEL PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This puts a lot of pressure on material costs, production costs and post-maintenance costs

Method used

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Experimental program
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Embodiment Construction

[0026] The present invention will be further described below in conjunction with accompanying drawing.

[0027] Such as Figure 1 to Figure 4 As shown, the present invention includes a nut 1, a screw rod 2, a screw with an elastic steel ball 3, an inner torx insert 4 and a flat washer 5. A flat washer 5 is respectively arranged on the upper and lower surfaces of the connecting piece, because this fastening method is used for clamps, so the design of the nut 1 and the screw rod 2 is relatively long. At the same time, clamp locking belongs to light locking, therefore, there is a cylinder on the upper part of nut 1 designed as surface embossing for manual tightening. The upper part of the nut 1 is designed in the shape of an external hexagon, so that the tool can be locked after being tightened.

[0028] Such as figure 1 As shown, the upper part of the screw rod 2 has a cylindrical hole along its radial direction, and the elastic steel ball screw 3 is installed by tapping, and...

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Abstract

The invention discloses an anti-seismic fastening structure. The anti-seismic fastening structure comprises a screw and a nut. At least one bolt is installed on the upper portion of the screw in the radial direction of the screw; an insert is arranged on the upper portion of the nut in the axial direction of the nut; and the two ends of each of the bolts are in close contact with the inner surfaceof the insert. The bolts are bolts with elastic steel balls; two cavities are formed in each of the bolts with the elastic steel balls; and a spring and the steel ball are fixed to the interior of one of the cavities. The steel balls are in close contact with the inner surface of the insert; the insert is sleeved on the inner side of the nut or is integrally formed with the nut; and the inner surface of the insert is plum blossom-shaped or W-shaped. The phenomenon of nut loosening caused by vibration is fundamentally eradicated, damage and accidents caused by fastening loosening are avoided,and the situation that the fastening of a threaded fastening part does not loosen because of vibration is achieved. Compared with an imported precise fastening part, the anti-seismic fastening structure is low in cost, wide in material selection range and easy in installation and using, and the use of the anti-seismic fastening structure is not affected by a small amount of inclusions and corrosion.

Description

technical field [0001] The invention relates to a fastening structure, in particular to an anti-seismic fastening structure. Background technique [0002] Existing fastening structures generally consist of flat washers, spring washers, bolts (various forms) and nuts (or tapping). The principle of thread fastening is: when the bolts and nuts are fastened, they are fastened by the pre-tightening force, the threads are tightened together, and the spring washer is compressed; after the pre-tightening force is lost, the spring washer rebounds (the rebound gap is the thread precision gap), The threads are reversely tightened under the influence of the resilience of the spring washer (and the resultant force of the reverse force of the tightening member); the static friction between the threads is equal to the resultant force of the spring washer’s resilience and the resultant force of the reverse force of the tightening member in the direction of thread loosening component, there...

Claims

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Application Information

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IPC IPC(8): F16B39/22F16B39/28
CPCF16B39/22F16B39/28
Inventor 史铭高明渊
Owner LIYANG SIFANG STAINLESS STEEL PRODS
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