Multi-adaptability U-shaped fastening device

Abstract

The invention belongs to the technical field of fasteners, and discloses a multi-adaptability U-shaped fastening device. The multi-adaptability U-shaped fastening device comprises a U-shaped bolt group, a gear shifting piece, groovepieces, sliding blocks and a gear bolt, the top surface of the middle of a U piece protrudes upwards, the bottom surface of the U piece forms a blocking groove, a penetrating screw hole is formed in the center of the top surface of the blocking groove, two upper radial grooves are symmetrically formed in the positions, on the two sides of the screw hole, of the topsurface of the blocking groove, the gear shifting piece is arranged in the blocking groove, penetrating beveled grooves are formed in the tops of the two ends of the gear shifting piece correspondingly, a penetrating circular arc circumferential groove is formed in the top of the middle of the gear shifting piece, and the groove pieces matched with the outer contour of the U piece are arranged under the U piece. The sliding blocks capable of being adjusted and retracted through an electric wrench are arranged on the U-shaped bolt group, and the fastening effect is stable; and rubber brackets arranged on the end surfaces of the sliding blocks deform along with the surface of a restrained object, friction on the surface of the restrained object is increased, axial constraining force is increased, when the rubber brackets act on a vertical tubular object, baffle brackets fixed to the rubber brackets in a fit mode has the certain loading capacity, and the stress damage to the surface of therestrained object is small.

Description

technical field [0001] The invention relates to the technical field of fasteners, in particular to a multi-adaptive U-shaped fastening device. Background technique [0002] U-bolts are non-standard parts, mainly used to fix tubular objects such as water pipes or sheet objects such as automobile leaf springs, and are usually used in conjunction with baffle brackets or guide cards in pipe fixing. U-bolts are used to constrain the radial direction of pipes. Displacement, and easy to install. [0003] The U-shaped bolt is in line contact with the tubular object, which restricts the axial displacement of the tubular object, and is prone to loosening. When in contact with the tubular object, it will deform the surface of the constrained tubular object, or make the surface of the constrained tubular object Scratches, paint peeling, etc. occur, reducing the service life of tubular objects; in actual use, most of the constrained objects are non-standard parts, and U-bolts are diffic...

AI Technical Summary

Problems solved by technology

[0003] The U-bolt is in line contact with the tubular object, which restricts the axial displacement of the tubular object, and is prone to loosening. When in contact with the tubular object, it will deform the surface of the constrained tubular object, or make the surface of the constrained tubular object Scratches, paint peeling, etc. occur, reducing the service life of tubular objects; in actual use, most of the constrained objects are non-standard parts, and U-bolts are difficult to use universally, which increases production and processing costs

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