Dust extraction suction arm structure without crank arm device

Abstract

The invention provides a dedusting suction arm structure without a crank arm device. The structure comprises a flexible suction tube, a rubber sheet and an opening structure; the outer surface of theflexible suction tube is provided with four wrapping layer structures arranged in an annular array, and the lengths of the wrapping layer structures are in accord with the length of the flexible suction tube; the outer surface of the cylinder end, connected with the flexible suction tube, of a mounting flange is provided with four fastening structures arranged in an annular array, and the positions of the four fastening structures correspond to the positions of the four wrapping layer structures arranged on the outer surface of the flexible suction tube respectively. The dedusting suction armstructure without the crank arm device has the advantages that an existing crank arm structure is removed, an universal flexible tube with a detachable structure is adopted, when the structure is used, the universal flexible tube inserted between the wrapping layer structures and the flexible suction tube can be twisted directly to drive the flexible suction tube to move, the flexible suction tubecan rotate 360 degrees freely through the arrangement of the universal flexible tube, so that the limited range is small, thereby meeting the use needs.

Description

technical field [0001] The invention belongs to the technical fields of dust removal equipment and environmental protection, and more specifically relates to a dust removal suction arm structure without a curved arm device. Background technique [0002] In industrial processing places, especially electric welding processing, which requires the vacuum cleaner's vacuum tube to vacuum for a long time, in order to facilitate the removal of welding fume, an industrial vacuum cleaner with a suction arm (suction arm) is generally used. [0003] Based on the above, the inventors found that the structural design of the existing suction arm (suction arm) is relatively unreasonable. It is generally composed of a curved arm and a suction pipe, and the curved arm is arranged inside the suction pipe. This structure has the following disadvantages : 1. The curved arm occupies the space in the suction pipe, which affects the vacuuming effect; 2. The inhaled welding fume and dust fall on the...

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Problems solved by technology

[0004] In order to solve the above technical problems, the present invention provides a dust removal suction arm structure without a curved arm device, so as to solve the problem that the curved arm occupies the space in the dust suction pipe and affects the dust collection effect; the sucked welding fume and dust fall on the curved arm, which is extremely It is easy to block the joint of the crank arm, which makes the movement of the crank arm inflexible and sets the jam, which seriously affects the use effect and shortens the service life; the activity angle of the suction arm (suction arm) is limited by the crank arm, and it cannot rotate freely at 360° , can not meet the problem of using demand

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