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Self-fastening type bolt

A self-tightening, bolt technology, applied in the directions of bolts, screws, nuts, etc., can solve problems such as affecting the operation and maintenance of high-voltage lines, vibration and falling off of bolts, and achieve a clear force transmission scheme, reduce frequency and cost, and huge economic and social benefits. Effect

Pending Publication Date: 2019-03-01
SHENYANG ELECTRIC POWER SURVEY DESIGN INST
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  • Abstract
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Problems solved by technology

[0002] As the erection of high-voltage iron towers and steel pipe poles becomes more and more common, bolts for component fastening are also widely used, but there are cases where bolts vibrate and fall off due to load, which seriously affects the operation and maintenance of high-voltage lines

Method used

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Embodiment Construction

[0015] In order to make the object, technical solution and advantages of 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.

[0016] refer to figure 1 , the present invention provides a self-tightening bolt, comprising a screw 1 and a nut A2, a nut B3 and a nut C4 sequentially connected to the screw 1, the nut A2 is fixedly connected to the top of the screw 1, the nut B3 and the nut C4 are threaded with the screw 1 connection, the contact surfaces of nut B and nut C are provided with matching large teeth 5, and each large tooth 5 on nut B3 has a vertical side and a hypotenuse, and the direction of inclination of the hypotenuse is the same as that on the screw rod 1. The inclination directions of the screw threads are the...

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Abstract

The invention belongs to the technical field of high-voltage electric power facility pole tower fasteners and particularly relates to a self-fastening type bolt. The self-fastening type bolt comprisesa bolt rod, a nut A, a nut B and a nut C, wherein the nut A, the nut B and the nut C are sequentially connected to the bolt rod. The nut A is fixedly connected to the top end of the bolt rod. The nutB and the nut C are in thread connection with the bolt rod. Matched large teeth are arranged on the contact faces of the nut B and the nut C correspondingly. Each large tooth on the nut B has a vertical edge and a bevel edge, wherein the inclination direction of the bevel edge is the same as that of a thread on the bolt rod, and the degree a of the included angle formed between the bevel edge ofeach large tooth of the nut B and the horizontal plane is larger than the degree b of the included angle formed between the thread on the bolt rod and the horizontal plane. The self-fastening type bolt is simple in construction and convenient to use, the self-fastening and falling-preventing effects are obvious, and the bolt can serve as a conventional connecting bolt for an electric transmissionline pole tower.

Description

technical field [0001] The invention belongs to the technical field of high-voltage power facility tower fasteners, and in particular relates to a self-tightening bolt. Background technique [0002] As the erection of high-voltage iron towers and steel pipe poles becomes more and more common, bolts for component fastening are also widely used. However, there are cases where bolts vibrate and fall off due to load, which seriously affects the operation and maintenance of high-voltage lines. Therefore, it is urgent to design an effective self-tightening and anti-loosening bolt, which can avoid the failure of the connection of the components caused by the nut falling off, so as to ensure the safety of the line operation and reduce the operation and maintenance cost. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a self-tightening bolt, which can effectively avoid component connection failure caused by nut falli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B35/06F16B37/00F16B39/282
CPCF16B35/06F16B37/00F16B39/282
Inventor 陈曦李占军李海阳刘明岳隋军
Owner SHENYANG ELECTRIC POWER SURVEY DESIGN INST
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