Special wrench assembly for porous flange plate and using method of special wrench assembly

Abstract

The invention discloses a special wrench assembly for a porous flange plate and a using method of the special wrench assembly. The special wrench assembly can be used for screwing and unloading a whole circle of nuts on the flange plate at the same time through cooperation of a chain and a plurality of nut sleeves and can adapt to screwing and connecting work of flange nuts with different numbers of holes. The special wrench assembly is characterized in that two sets of pulleys are arranged in a main shell, one set of pulleys are composed of two pulleys, and the chain is arranged between the two pulleys in the same set; a rotating shaft is arranged on the outer wall of the main shell, and one end of the rotating shaft extends to be arranged in the main shell; a driving gear is arranged at one end of the rotating shaft and positioned between the two sets of pulleys, and the driving gear meshes with the chain to form a transmission relationship; a hexagonal prism is arranged on the end face of the other end of the rotating shaft, and a rotating handle is arranged at the other end of the rotating shaft in a sleeving mode; a lifting handle is arranged at the top of the main shell, and one end of a telescopic cylinder is arranged at the bottom of the main shell; one end of a sliding rod is arranged in the telescopic cylinder, and the other end of the sliding rod extends out of the other end of the telescopic cylinder.

Description

technical field [0001] The invention relates to a wrench assembly specially used for a porous flange and a using method thereof, relating to a wrench assembly specially used for a porous flange and a using method thereof, and belongs to the field of hardware instruments. In particular, it relates to a wrench assembly capable of simultaneously screwing and unloading a full circle of nuts on a flange through the cooperation of a chain and a plurality of nut sleeves, and being able to adapt to the screwing connection of flange nuts with different numbers of holes, and How to use it. Background technique [0002] Flange is also called flange plate or flange plate. It is a part that connects pipes and pipes. It is connected to the pipe end and is mostly used for the butt joint between various pipes. For tight connection between flanges, usually when two sets of flanges are connected, multiple sets of bolts and nuts are required for tight connection, which requires the staff to s...

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Problems solved by technology

[0002] Flange is also called flange plate or flange plate. It is a part that connects pipes and pipes. It is connected to the pipe end and is mostly used for the butt joint between various pipes. For tight connection between flanges, usually when two sets of flanges are connected, multiple sets of bolts and nuts are required for tight connection, which requires the staff to screw the bolts and nuts in sequence. When encountering porous flanges, this screw The speed of tightening is relatively slow. At the same time, since each set of bolts and nuts are separately screwed and tightened, it is impossible to ensure that the screwing force of each set of nuts is the same during tightening, so that the flange connection is tight. For unevenness, it is easy to appear fastening inaccurate phenomenon

[0003] Notification number CN211249838U discloses a multi-nut variable wheelbase fast disassembly device, including: a housing, an inner bevel gear arranged in the housing, a first outer bevel gear, a rotating shaft passing through the housing and the inner bevel gear and The first external bevel gear is connected; between the internal bevel gear and the first external bevel gear, there are a number of second external bevel gears meshing with it, and a working rod is fixed at the center of each second external bevel gear. Although the device can screw multiple sets of nuts at the same time, due to the special structure of the pipeline flange, its central transmission structure interferes with the central pipe of the flange, so it cannot be conveniently applied to the nut screwing of the flange. It targets a limited number of nuts and cannot accommodate flange connections with different numbers of holes

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