Anti-theft fastening assembly and special dismounting tool
A technology for fastening components and dismantling tools, applied in the directions of threaded fasteners, locking fasteners, manufacturing tools, etc., can solve the problems of poor anti-theft effect and easy blocking of balls, and achieve the effect of good anti-theft effect
Inactive Publication Date: 2019-05-10
STATE GRID CORP OF CHINA +2
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Problems solved by technology
[0004] The purpose of the present invention is to provide an anti-theft fastening assembly and a special disassembly tool to solve the problem in the prior art that the balls are easily stuck and the anti-theft effect is poor
Method used
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[0034] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0035] refer to figure 1 and figure 2 , the anti-theft fastening assembly provided by the present invention will now be described. The anti-theft fastening assembly includes a bolt 4, a nut 1, a check rod 2 and a spring 3. The threaded surface of the bolt 4 is provided with a groove 5 in the axial direction, and the threaded surface of the nut 1 is provided with a cavity 11, and the two sides of the cavity 11 are along the A first side wall 111 and a second side wall 112 are respectively provided in the thread tightening direction; one end of the backstop rod 2 ...
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The invention provides an anti-theft fastening assembly and a special dismounting tool, belongs to the technical field of electric power construction tools. The anti-theft fastening assembly comprisesbolts, nuts, check rods and springs, wherein grooves are axially formed in the threaded surface of the bolts; cavities are formed in the threaded surface of the nuts, the two sides of the cavities are provided with first side walls and second side walls along the screwing direction of the thread respectively; one ends of the check rods are rotationally arranged in the cavities, the other ends ofthe check rods are provided with wedge-shaped protrusions which are gradually shortened in the screwing direction of the thread, when the check rods abut against the first side walls, the wedge-shapedprotrusion is located in the cavities, when the check rods abut against the second side walls, the wedge-shaped protrusions are located in the grooves; and the springs are arranged between the firstside walls and the check rods and are used for abutting against the second side walls. According to the anti-theft fastening assembly, the structure of the ball is adopted in the prior art is avoided,and the anti-theft effect is good.
Description
technical field [0001] The invention belongs to the technical field of electric power construction tools, and more specifically relates to an anti-theft fastening component and a special disassembly tool. Background technique [0002] Bolt and nut connection is a connection method widely used in mechanical structures, engineering installations, etc. Taking power facilities as an example, electricity is transmitted from power plants to power users over long distances by transmission lines of various voltage levels. Since the power line passes through various provinces, cities, counties, townships and other places along the way, it is characterized by a wide range of lines, especially in remote mountainous areas and sparsely populated places, which brings certain difficulties to the maintenance of power lines. The biggest problem is the fastening of power lines. The nuts of the parts and the nuts of the transmission tower are easy to be removed, so that the transformer or tow...
Claims
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IPC IPC(8): F16B35/04F16B37/00F16B39/282F16B39/284F16B41/00B25B13/48
Inventor 何成立申金龙何菲赵庆华张炜赵立城李洪宾刘晓霞王兆君吴冀鹏段泽龙邱超杰宋计林刘文生
Owner STATE GRID CORP OF CHINA