Under-pressure punching device for fire-fighting pipeline

Abstract

The invention belongs to the technical field of pipeline punching equipment, and particularly relates to an under-pressure punching device for a fire-fighting pipeline, which comprises a sealing shell, a sealing hoop, a power control center, a drilling assembly, a first mounting assembly, a first telescopic assembly and a fastening assembly, the two ends of the sealing hoop are screwed on the sealing shell; the power control center is arranged on the outer wall of the sealing shell; the drilling assembly, the first mounting assembly and the fastening assembly are movably mounted on an inner bottom plate of the sealing shell; one end of an output shaft of the first telescopic assembly points to the sealing hoop; the first mounting assembly comprises a first mounting plate, a first mounting part, a second mounting part and a sealing piece; by means of the arrangement, under-pressure punching work can be completed without using a short pipe to weld the pipeline, the situation of weld joint cracking is avoided, and higher safety is achieved.

Description

technical field [0001] The invention belongs to the technical field of pipeline drilling equipment, and in particular relates to a pressurized drilling device for fire-fighting pipelines. Background technique [0002] In the actual application of the fire pipe network, some devices for data collection such as pressure and temperature will be installed on the original pipe network due to the need for real-time control. Therefore, it is necessary to carry out work under pressure. However, work under pressure is dangerous and may affect people and equipment. [0003] At present, the domestic existing technology is mainly the method of welding short pipes on the original pipeline, and the welded short pipe is connected with the punching device, but the scheme of welding short pipes has caused damage to the integrity of the original pipeline, which may lead to The original pipe network cracked in the weld seam during the later use, posing certain safety hazards. Contents of th...

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Problems solved by technology

[0002] In the actual application of the fire pipe network, some devices for data collection such as pressure and temperature will be installed on the original pipe network due to the need for real-time control. Therefore, it is necessary to carry out work under pressure, but work under pressure is dangerous and may affect people and equipment.

[0003] At present, the domestic existing technology is mainly the method of welding short pipes on the original pipeline, and the welded short pipe is connected with the punching device, but the scheme of welding short pipes has caused damage to the integrity of the original pipeline, which may lead to The original pipe network has cracked welds in the later use process, which has certain safety hazards

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