Durable bellow expansion type respirator

Abstract

The invention discloses a durable bellow expansion type respirator which comprises a respirator body, a dismounting mechanism A and a dismounting mechanism B. The dismounting mechanism A comprises a first round cover, a fixing column, a fixing groove, a through pipe, a second round cover, a moving groove, a buffer pad, a pull block, a pull rod, a cushion block and a reset spring, and the left end of the respirator body is fixedly connected with the right side of the first round cover. The right side of the fixing column is fixedly connected with the left side of a first round cover, the right end of the through pipe is fixedly connected with the left side of a second round cover, and a fixing groove is formed in the top of the left side of the fixing column. According to the invention, the dismounting mechanism A, the first round cover, the fixing column, the fixing groove, the through pipe, the second round cover, the moving groove, a buffer pad, a pull block, a pull rod, the cushion block and the reset spring are arranged; when disassembly is needed, the two pull rods are pulled in the opposite directions with hands, the reset springs extend, and therefore the pull rods are disengaged from the fixing grooves, and the good disassembly effect is achieved.

Description

technical field [0001] The invention relates to the technical field of respirators, in particular to a durable corrugated inflatable respirator. Background technique [0002] The respirator is a self-contained open-air respirator, widely used in firefighting, chemical industry, shipbuilding, petroleum, smelting, warehouses, laboratories, mines and other departments, for firefighters or emergency rescue personnel It can safely and effectively carry out fire extinguishing, emergency rescue and rescue work in various environments such as oxygen and oxygen. This series of products is equipped with a full-face mask with a wide field of view, bright and good airtightness, and the air supply device is equipped with a new type of air supply valve with small size, light weight and stable performance; high-strength backboard and high-quality high-pressure with high safety factor are selected. Gas cylinder; the pressure reducing valve device is equipped with a residual gas alarm, with...

AI Technical Summary

Problems solved by technology

[0003] The existing respirator is installed at the end of the pipe connecting the oil conservator to the air, and in areas affected by the monsoon climate all year round and with high air humidity, the internal pressure of the transformer changes greatly every time the transformer oil expands with heat and contracts with cold. This leads to the easy discoloration of the silica gel in the transformer respirator

Since more than two-thirds of the discolored silica gel in the transformer respirator needs to be replaced, and the location of the substation is widely distributed, the work of replacing the silica gel of the transformer respirator will consume a lot of manpower and material resources

When replacing the silica gel in the existing transformer respirator, it is necessary to remove the transformer respirator from the transformer exhaust pipe first, then replace the silica gel in the transformer respirator, and then install the transformer respirator to the transformer after replacing the silica gel. On the exhaust pipe, because the installation device is too complicated, the disassembly is also extremely complicated, resulting in low disassembly efficiency and increasing the burden on the staff

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