Manual double-spark plug fire work tap

Abstract

The invention provides a manual double-spark plug fire work tap, which comprises a handheld air intake pipe, a mixed flow pipe and two spark plugs, wherein the lower end of the handheld air intake pipe is communicated with the mixed flow pipe via a nut; the two spark plugs are fixedly connected under the mixed flow pipe; two connecting rods downwards extending are arranged at the two ends of the mixed flow pipe; one travelling wheel is fixedly installed at the lower end of each connecting rod; the connecting rods are rotationally connected with the mixed flow pipe and are fixed on the mixed flow pipe via locking devices. During actual operation, an operator regulates a distance between the two spark plugs in the direction of the axles of the travelling wheels via rotating the mixed flow pipe and the connecting rods according to different flame path widths, and further achieves fire work back burning. According to the manual double-spark plug fire work tap, the distance between the two spark plugs can be very conveniently regulated, and the whole structure is simple, as a result, filed construction environment is ameliorated, constructors' labor intensity is lowered, construction efficiency and the quality of back burning are effectively boosted, and further effects of energy economization, cost reduction and benefit increment are realized.

Description

technical field [0001] The invention relates to a device for pyrotechnic backburning of the hull structure during the hull construction process, in particular to a hand-controlled pyrotechnic faucet with double nozzles. Background technique [0002] Pyrotechnic back-burning is a technological measure to eliminate residual stress generated during hull structure welding, correct corner deformation and prevent hull deformation during hull construction, and pyrotechnically heat the reverse side of welding corners for the convenience of structural installation. This process is widely used in the entire hull construction process, which not only consumes a lot of man-hours, but also has very high requirements for the quality of the pyrotechnic backfire operation. At present, the construction method of traditional pyrotechnic backfiring operation is manual operation of one person and one moment of backfiring, and only one flame path can be formed at one time, that is, it needs to go...

AI Technical Summary

Problems solved by technology

However, in the multi-head adjustable pyrotechnic faucet, the diverter device includes a diverter block and a plurality of diverter pipes, each of which is connected to a flame nozzle at the lower end of the diverter pipe, and the plurality of diverter pipes are fixed on a connecting rod, so its structure relatively complex

At the same time, when adjusting the distance between the flame nozzles, it is realized by clamping the shunt tubes in the corresponding slots on the connecting rods. Metal pipe, so when expanding or reducing the distance between the lower ends of the two shunt pipes, it is necessary to adjust the bending degree of the upper end of the shunt pipe, so the operation is inconvenient and the applicability is poor; in addition, the distance adjustment range between the two flame nozzles is small, It can only be a discrete value within a certain range, not a continuous value

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