Inner hexagon bolt used on automobile hub

Abstract

The invention discloses an inner hexagon bolt used on an automobile hub. The inner hexagon bolt comprises a bolt head mechanism, an elastic ring, a flange face and a screw mechanism. The bolt head mechanism comprises a hexagon bolt head and a waterproof tabletop. An inner hexagon bolt hole is formed in the middle portion of the hexagon bolt head. The screw mechanism comprises an installation section, a smooth-surface screw section, a threaded section and a guide polished rod section. Multiple tooth ripple grooves are formed in the lower surface of the flange face. According to the inner hexagon bolt, by arranging the elastic ring, certain tensile force can be kept between two connected parts all the time by the inner hexagon bolt through deformation of the elastic ring, and connection stability is ensured; the guide polished rod conducts perpendicular guiding before the bolt and a threaded hole are engaged, perpendicular stress of the bolt is ensured, and the probability of thread sliding is lowered; by arranging the waterproof tabletop above the flange face, it is avoided that because of erosion of rainwater, the bolt rusts and is damaged; and by forming the tooth ripple grooves in the lower surface of the flange face, the connection stability between the two connected parts is further ensured.

Description

【Technical field】 [0001] The invention relates to the technical field of wheel hub bolts, in particular to an inner hexagon socket bolt used on an automobile wheel hub. 【Background technique】 [0002] Hex bolt, a type of fastener consisting of a head and a screw (a cylinder with external threads), needs to be matched with a nut to fasten two parts with through holes. This connection form Called bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection, and it is a commonly used accessory in daily life. It is widely used in the fields of automobiles, ships, aircraft and construction. However, during the fastening operation, if the vertical strength of the bolt and the threaded hole cannot be guaranteed, resulting in oblique force, or the operator is inexperienced or exerts too much force, the fragile threaded hole will slip. And the bolt is exposed to the air for a long time, especially in the h...

AI Technical Summary

Problems solved by technology

However, during the fastening operation, if the vertical force of the bolt and the threaded hole cannot be guaranteed, resulting in oblique force or the operator is inexperienced or uses too much force, the fragile threaded hole will slip

And the bolts are exposed to the air for a long time, especially in the humid rainy season, they are often rusted and damaged, and need to be replaced in time; the installation of the bolts basically requires a wrench, and it is difficult to install without a wrench, and the installation is inconvenient

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