Bolt with thermosensitive element

Abstract

The invention discloses a bolt with a thermosensitive element. The bolt comprises a bolt and an exhaust component; an axial exhaust hole is arranged inside a screw of the bolt, and the outlet of the axial exhaust hole is located at the end of the screw away from a nut; the exhaust component comprises a groove arranged on the bolt screw, and the groove extends along the length direction of the boltscrew; the inner bottom of the groove is provided with a radial exhaust hole, and the groove communicates with the axial exhaust hole through the radial exhaust hole; pin shafts are respectively arranged at two ends of the interior of the groove, and a bimetallic strip is connected between the two pin shafts; the two ends of the bimetallic strip are respectively rotatably arranged on the two pinshafts in a sleeving mode; and a rubber plug for blocking the radial exhaust hole is provided on the bimetallic strip corresponding to the radial exhaust hole. According to the bolt with the thermosensitive element provided by the invention, when the temperature of gases in a hollow wallboard is increased, the bolt can be used to automatically exhaust outwards; when the temperature of the gases inthe hollow wallboard is reduced, the bolt can be used to automatically stop exhaust; and the special requirements of bolts in special fields are met.

Description

technical field [0001] The invention relates to a bolt with a heat-sensitive element, belonging to the technical field of bolts. Background technique [0002] A bolt is a mechanical part, a cylindrical threaded fastener with a nut, a type of fastener consisting of a head and a screw. The screw is a cylinder with external threads and needs to be matched with a nut. It is used to fasten two parts with through holes. This connection form is called bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection. ; At present, the traditional bolts and nuts are single structure, single structure, single function, in some special fields, such as nuclear facilities, aerospace and other fields, they will have various special requirements when using bolts and nuts, now Some bolts and nuts cannot meet their special requirements. This special requirement causes bolts and nuts to completely exceed the structure o...

AI Technical Summary

Problems solved by technology

[0002] A bolt is a mechanical part, a cylindrical threaded fastener with a nut, a type of fastener consisting of a head and a screw. The screw is a cylinder with external threads and needs to be matched with a nut. It is used to fasten two parts with through holes. This connection form is called bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection. ; At present, the traditional bolts and nuts are single structure, single structure, single function, in some special fields, such as nuclear facilities, aerospace and other fields, they will have various special requirements when using bolts and nuts, now Some bolts and nuts cannot meet their special requirements. This special requirement causes bolts and nuts to completely exceed the structure of bolts and nuts used in our general field and the form of mating connection. They are all redesigned and developed according to their special requirements. Manufactured to meet the special requirements for bolts and nuts in special fields; at present, a special connection requirement is encountered, which requires bolts to pass through a hollow wall panel, and the hollow wall panel is filled with gas. When the gas temperature in the hollow wall panel When rising, it is necessary to use bolts to automatically exhaust outwards. When the temperature of the gas in the hollow wall panel decreases, it is necessary to use bolts to automatically stop exhausting. At present, there are no bolts that can achieve the above functions, so the technical solution of the present invention is designed

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