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A technology of metal fasteners and nuclear power, applied in the direction of threaded fasteners, locking fasteners, connecting components, etc., can solve the problem of loose fasteners, easy rust and wear on the surface of fasteners, and poor connection of fasteners Firmness and other issues, to avoid breakage, solve the effect of easy rust and wear, and solve the problem of weak connection
Pending Publication Date: 2019-08-02
JIANGSU HAIWEI GROUP
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[0004] The object of the present invention is to provide a kind of metal fasteners
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[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0017] see Figure 1-3 , a metal fastener for nuclear power, comprising an outer screw 1, the top of the outer screw 1 is provided with a hexagonal nut 2, and the inside of the outer screw 1 is provided with an inner screw 7, and the front surface of the outer screw 1 is provided with a through groove 5, And the inner wall of the outer screw 1 is provided with a chute 11, the inner screw 7 runs through the inside of the hexagonal nut 2 and is con...
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Abstract
The invention discloses a metal fastener for nuclear power and belongs to the technical field of fasteners. The metal fastener for nuclear power comprises an outer screw. A hexagonal nut is arranged at the top end of the outer screw, an inner screw is arranged in the outer screw, a straight slot is formed in the front surface of the outer screw, a chute is formed in the inner wall of the outer screw, and the inner screw penetrates the inner side of the hexagonal nut and is connected to an upper nut. By arranging a lower cross keyway, the lower nut, the inner screw, the outer screw, the upper nut, an upper cross keyway, the upper nut and the hexagonal nut, when nuclear power equipment needs to be fastened, the lower cross key way is rotated by using a cross screwdriver to drive the lower nut to rotate and insert the inner screw into the outer screw. When the top end of the inner screw is higher than the hexagonal nut, the upper cross key way is rotated by using the cross screwdriver todrive the upper nut to lock the inner screw and the hexagonal nut, so that the problem that the fastener is not connected firmly is solved effectively.
Description
technical field [0001] The invention relates to the technical field of fasteners, in particular to a metal fastener for nuclear power. Background technique [0002] Fasteners are a type of mechanical parts 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. A variety of fasteners can be seen on various machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemicals, instruments and supplies, and are the most widely used mechanical basic parts. . [0003] In the connection of nuclear power equipment, a large number of fasteners need to be used. The current fasteners generally use screws and nuts for fixed connection, but this method is prone to the phenomenon of screw slippage, which makes the fasteners easy to fall off. Phenomenon, the existing fasteners are easy to l...
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