Mechanism capable of adjusting extending length of feeler lever and detection device

Abstract

The invention discloses a mechanism capable of adjusting the extending length of a feeler lever, which comprises an adjusting sleeve, a locking piece and movable pieces, and is characterized in that the adjusting sleeve, the movable piece and the locking piece are each provided with a central through hole; the hole wall of the movable piece is provided with an internal thread, and the outer wall of the adjusting sleeve is provided with an external thread matched with the internal thread; a plurality of notches are formed in the end of the locking piece, so that a plurality of clamping pieces are formed at the end of the locking piece, front inclined faces close to the movable piece are arranged on the clamping pieces, and pressing faces corresponding to the front inclined faces are arranged on the hole wall of the movable piece; and the clamping pieces can be extruded to be folded towards the center in the process that the pressing face of the movable piece gets close to the front inclined face in the axial direction. The mechanism has the beneficial effects that the extending length of the feeler lever can be adjusted at will according to actual needs, and the detection requirements under the conditions of different chimney diameters and different insertion depths are met.

Description

technical field [0001] The invention belongs to the auxiliary technical field of measuring instruments, and in particular relates to a mechanism and a detection device capable of adjusting the length of a probe rod. Background technique [0002] After research and investigation, it is found that the existing commercially available flue gas sampling probe rods are welded on the chimney with simple bushings, and a flange is welded to the fixed position of the sampling probe rod, and the sampling probe rod is inserted into the chimney and connected to the bushing. Direct flange connection to achieve the fixing function of the sampling probe rod. The disadvantage is that it is necessary to know the chimney diameter at the site or the owner's requirements for the insertion depth of the probe rod at the beginning of the design; the second is that the insertion depth of each probe rod is The fixed depth cannot be flexibly adjusted according to the situation. The third is that the ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problems of poor adjustability and low applicability in the prior art, and provide a mechanism and detection device that can adjust the length of the probe rod, which can flexibly adjust the length of the probe rod according to actual needs.

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