Breaking-protection type low-temperature dry quick joint

Abstract

The invention discloses a breaking-protection type low-temperature dry quick joint. The breaking-protection type low-temperature dry quick joint comprises a female joint and a male joint, wherein thefemale joint comprises a female joint valve body which is provided with a round end and a conical end; a female joint valve core base is arranged at the round end of the female joint valve; a female joint valve core capable of sliding axially is arranged at the middle part of the female joint valve core base in a penetrating manner; the male joint comprises a first male valve seat and a second male valve seat; the contact surfaces of the first male valve seat and the second male valve seat are connected by breaking bolts; inner cavities of the first male valve seat and the second male valve seat are provided with sliding sleeves capable of sliding along the inner walls of the inner cavities; the outer wall of the first male valve seat is provided with a spiral guiding groove for embedded sliding of a roller component so as to lead the first male valve seat to be embedded into a ring-shaped sliding cavity and matched with the ring-shaped sliding cavity in a sliding manner. The breaking-protection type low-temperature dry quick joint disclosed by the invention has the beneficial effects that the internal structures of the female joint and the male joint are optimized, so that safe and fast connection and separation can be realized, quick separation into two self-sealing parts can be realized when in overloading and hoses and other filling equipment can be protected.

Description

technical field [0001] The invention relates to a quick joint, in particular to a breakage protection type low temperature dry quick joint. Background technique [0002] The use of LNG as fuel on ships is becoming more and more extensive, requiring faster filling and delivery of LNG. Small-caliber filling guns can no longer meet the requirements, while large-caliber filling guns are laborious to operate, and usually require additional driving devices, making the structure complex. The existing filling joint has poor sealing effect. When the valve body is disconnected, the gas in the pipeline is easy to leak out of the valve body, resulting in the safety of equipment and personnel, low safety performance, and the hull drifts during the filling process May overload the filling system, causing damage to filling hoses and other equipment. [0003] In recent years, with the vigorous development of technology, the use of dry joints has become more and more extensive. The existin...

AI Technical Summary

Problems solved by technology

However, the internal structure of the female joint and the male joint of the existing dry joint is complex, and the cavity between the female joint and the male joint is relatively large when they are in a critical separation state, and there is leakage when the joint is separated; In the process, if the force is overloaded, the two ends may be stuck and cannot be separated quickly, causing damage to the pipeline and surrounding connecting devices.

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