Loosing and theft preventing bolt structure body
A structure and bolt technology, applied in the direction of bolts, screws, nuts, etc., can solve the problem of high requirements for the use of construction personnel, achieve good anti-theft effect, reduce construction requirements, and prevent rust connections.
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[0042] Such as figure 1 As shown, the bolt structure of the present invention includes a bolt 3, a washer 4, a washer 7 and a nut 5.
[0043] Among them: the bolt 3 has a bolt head 31 and a bolt shaft 32, the bolt head 31 is a hexagon, and the bottom edge of each side 311 is provided with a wedge-shaped tooth-like inclined surface arranged at an equal angle, and one side is high and the other is low. 312, and the wedge-shaped tooth-shaped slopes 312 are continuously connected, so that the shallowest part of the previous wedge-shaped tooth-shaped slope 312 is just the deepest part of the next wedge-shaped tooth-shaped slope 312, and the joints of the wedge-shaped tooth slopes 312 form a height difference. Block surface 313; bolt shaft 32 has threads 321.
[0044] The washer 4 is in the shape of a flat ellipse with no gaps on its periphery. A perforation 41 is provided in the center. A continuous slope 42 corresponding to the wedge-shaped tooth slopes 312 of the bolt head 31 is for...
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