High-strength screw fastener

Abstract

The invention relates to the technical field of screw fasteners, in particular to a high-strength screw fastener. The high-strength screw fastener comprises a screw body, a pushing mechanism, fastening mechanisms and lubricating mechanisms. A cylindrical groove is formed in the position, close to the middle, of the outer surface of the upper end of the screw body, and the multiple sets of fastening mechanisms are arranged at the positions, close to the two sides, of the inner surface of the cylindrical groove. The lubricating mechanisms are arranged between every two adjacent sets of fastening mechanisms. The pushing mechanism comprises a pushing rod, a connecting block, a notch and first teeth, the connecting block is fixedly connected to the outer surface of the upper end of the pushing rod, and the outer surface of the pushing rod is tightly attached to the inner surface of the cylindrical groove. According to the high-strength screw fastener, the pushing mechanism and the fastening mechanisms are arranged to be matched with each other, and the screw body and inserting columns can be firmly fixed into a slope body; and the multiple sets of inserting columns are fixed to different directions of the slope body at the same time, the contact area of the device and the slope body is increased, therefore the soil grabbing force of the screw body is effectively enhanced, and the screw body is not prone to falling off.

Description

technical field [0001] The invention relates to the technical field of screw fasteners, in particular to a high-strength screw fastener. Background technique [0002] Fasteners are a type of mechanical parts that are used for fastening connections and are widely used. Fasteners are used in a wide range of industries, including energy, electronics, electrical appliances, machinery, chemicals, metallurgy, molds, hydraulics, etc., in various machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments All kinds of fasteners can be seen on the , chemical industry, instruments and supplies, etc., which are the most widely used mechanical basic parts. It is characterized by a wide variety of specifications, different performances and uses, and a high degree of standardization, serialization, and generalization. [0003] In the process of realizing the present invention, the inventor found that at least the following problems in the prior ar...

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Problems solved by technology

[0004] In the slope protection project, the slope protection net is usually fixed with a wire rope, and the cable buckle and the screw are used to fix it. This is a common method for wire rope installation. However, the existing screw slope protection project has poor stability when used, and at the same time, it has a relatively small bonding area with the surrounding soil. Small, easy to fall off when subjected to strong squeezing and pulling, thus reducing the fixing effect of the screw

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