Pipeline connection invisible variable-diameter bushing and method of use thereof

Abstract

The invention discloses an invisible reducing bushing for pipeline connection and the application method thereof. The bushing body provided by the invention is used for reducing connection of stainless steel pipelines with different calibers, and is composed of a stainless steel part, a seal ring, a gasket, a snap ring and a clamp nut. According to bushing provided by the invention, a bushing body is assembled at a tube fitting port which needs reducing, so as to realize reducing by changing the inner diameter of the tube fitting port. The bushing provided by the invention is characterized in that firstly, the bushing body is implied in the reducing port, and cannot be seen after assembling, and secondly, the reducing is randomly, that is, the reducing of any port of any tube fitting can be realized by mounting the bushing body. The condition that numerous 'diameter reducing tube fittings' are designed and produced in the prior art, which greatly increases the manufacturing cost of the manufacturing plant, the operating costs of the distributor, and the living cost of a consumer, is avoided. The reducing diameter bushing provided by the invention enables the pipeline reducing to be free and relaxed, and the reducing of all the pipelines can be realized by bushing bodies at a very low price.

Description

technical field [0001] The invention relates to a bushing structure for pipeline connection, in particular to an invisible variable-diameter bushing for pipeline connection and a use method thereof. Background technique [0002] In the connection of stainless steel pipes, the connection of stainless steel pipes of different calibers generally adopts the conversion of different caliber connection ends. Different calibers require pipe connections of corresponding calibers, and the cost is extremely high. It is impossible to arbitrarily change the corresponding connecting pipes according to the caliber needs. In order to change this situation, there are caliber bushings used in the pipeline connection on the market, using direct threaded connections. When using this kind of bushing, the pipes at both ends of the bushing need to be tightened at the same time, which becomes very difficult when the pipe is repaired and disassembled; moreover, There is still the problem that in ord...

AI Technical Summary

Problems solved by technology

[0002] In the connection of stainless steel pipes, the connection of stainless steel pipes of different calibers generally adopts the conversion of the connection ends of different calibers. Different calibers require pipe connections of corresponding calibers, and the cost is extremely high. The corresponding connecting pipes cannot be changed arbitrarily according to the caliber needs

In order to change this situation, there are caliber bushings used in the pipe connection on the market, using direct threaded connections. Using this kind of bushing, the pipes at both ends of the bushing need to be tightened at the same time, which becomes very difficult when the pipe is repaired and disassembled; moreover, There is still the problem that in order to adapt to the connection of stainless steel pipes of different calibers, it is necessary to separately purchase or process bushings that meet the needs of on-site construction for the joints of pipes of different specifications, which prolongs the pipeline construction period and also increases the cost of pipeline construction; At the same time, due to the corrosion resistance of stainless steel itself, the wall thickness of the steel pipe reserved for threading or tapping forms unnecessary waste, and the processing of stainless steel pipe threading or tapping is difficult

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