Temperature control type anchor rod

Abstract

The invention discloses a temperature control type anchor rod. The temperature control type anchor rod comprises a rod body, a hollow cavity is formed in the rod body, a cone is arranged on the bottomsurface of the rod body, supports are arranged in the hollow cavity, wherein each support comprises an upper circular ring body, a lower circular ring body and a connecting column for connecting thecorresponding upper circular ring body to the corresponding lower circular ring body, the axis of each lower circular ring body and the axis of the corresponding upper circular ring body are collinear, the diameter of each lower circular ring body is larger than or equal to the diameter of the corresponding upper circular ring body, bimetallic strips are connected between the edge of each upper circular ring body and the edge of the corresponding lower circular ring body, limiting holes are formed in the outer wall of the rod body, sliding rails are arranged at the bottoms of the limiting holes, limiting blocks are slidably connected to the sliding rails, the middle portions of the bimetallic strips are connected with the limiting blocks, when the bimetallic strips are in normal temperature states, the middle portions of the bimetallic strips protrude in the axis directions away from the upper circular ring bodies, and when the bimetallic strips are in heating states, the middle portions of the bimetallic strips retract in the axis directions close to the upper circular ring bodies. According to the temperature control type anchor rod, the problems that a traditional anchor rod isnot high enough in pulling resistance and inconvenient to use repeatedly are solved.

Description

technical field [0001] The invention relates to an anchor rod, in particular to a temperature-controlled anchor rod. Background technique [0002] The traditional push-type anchor is used for slope protection, and the soil layer on the slope is used to reinforce the buildings on the slope, which can effectively improve the tensile strength of the building. The traditional anchor is only set on its outer surface. Screw thread, by manually tapping the anchor rod into the soil, so as to use the friction force generated by the soil layer and the thread to achieve the reinforcement effect, but the maximum static friction force between the traditional anchor rod and the soil layer is not large enough, resulting in the traditional The pull-out resistance of the existing anchors is not large enough, and in addition, the traditional anchors are inconvenient to reuse. Contents of the invention [0003] The technical problem to be solved by the invention is to solve the problem that...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to solve the problem that the pull-out resistance of the traditional bolt is not high enough and it is inconvenient to reuse

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