Novel explosion-proof armored thermal resistor

Abstract

The invention discloses a novel explosion-proof armored thermal resistor which comprises an explosion-proof armored thermal resistor and a protective sleeve head in threaded connection with the top end of the explosion-proof armored thermal resistor, two sets of protruding blocks are symmetrically fixed to the outer wall of the top end of the protective sleeve head in the axis direction, a gap is formed between the two sets of protruding blocks, and positioning ring sleeves are fixed to the outer walls of the top ends of the protruding blocks; movable rods are arranged in the positioning ring sleeves in a sleeved mode, and pull handles are fixed to one ends of the movable rods. By means of the two sets of protruding blocks arranged at the top end of the protective sleeve heads, when a worker needs to rotate the protective sleeve head, a hard tool (such as a screwdriver or a pen) carried by the worker can be inserted between the two sets of protective sleeve heads, then the hard tool can be rotated, force needed for rotating the protective sleeve head is reduced under the action of the lever principle, and the upper end between the two sets of protective sleeve heads is limited through the two sets of movable rods, and the hard tool is prevented from being separated from the two sets of protective sleeve heads during rotation.

Description

technical field [0001] The invention relates to the technical field of thermal resistance, in particular to a novel explosion-proof armored thermal resistance. Background technique [0002] Explosion-proof thermal resistance is a kind of industrial explosion-proof thermal resistance. It is used as a sensor for temperature measurement and control and is matched with display instruments to directly measure and control the temperature of gas, liquid and steam in the production process. Although the existing production process of thermal resistance It is maturing day by day, but there are still some deficiencies to be improved. [0003] The thermal resistance of the prior art has the following problems: the upper end of the existing explosion-proof armored thermal resistance is threadedly connected with a protective sleeve, and the protective sleeve connected with the thread cannot be easily turned and opened during maintenance, which requires a lot of time and effort. And beca...

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Problems solved by technology

[0003] The thermal resistance of the prior art has the following problems: the upper end of the existing explosion-proof armored thermal resistance is threadedly connected with a protective sleeve, and the protective sleeve connected with the thread cannot be easily turned and opened during maintenance, which requires a lot of time and effort. And because the protective sleeve is of explosion-proof armored design, it is easy to drop and lose the protective sleeve during the maintenance process, and a new protective sleeve needs to be equipped again. Therefore, we propose a new type of explosion-proof armored thermal resistance to solve the above problems

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