Joint

Abstract

The invention provides a joint which enables a male joint or a female joint to bear high pressure, is simple in structure and convenient and fast to operate during butt joint before the butt joint of the male joint and the female joint. The joint comprises the female joint and the male joint which are connected, wherein the female joint comprises a female valve body provided with a fluid channel, a core sleeve is arranged in the fluid channel, one end of a mandrel is fixedly connected with a plug, the other end of the mandrel penetrates through the core sleeve, a sliding sleeve is sleeved on the mandrel, an elastic element is arranged between the sliding sleeve and the female valve body or the core sleeve, and the elastic element enables the sliding sleeve to contact the plug in a sealing mode and enables the mandrel to contact the core sleeve in the sealing mode. The male joint comprises a male valve body provided with a channel, a valve core is arranged in the channel, an elastic element is arranged between the male valve body and the valve core, and the elastic element enables the valve core to contact a valve base in a sealing mode. When one end of the male valve body is inserted into the female valve body, the distance which the male valve body pushes the sliding sleeve to move is A, the distance which the valve core pushes the mandrel to move is B, and B is smaller than A. Therefore, the valve core and the valve base, the plug and the sliding sleeve, and the mandrel and the core sleeve do not contact in the sealing mode, the fluid channel and the channel are connected to form a through channel, a limit stair is arranged in the fluid channel, and the distance C from the face of the limit stair to the end portion of the mandrel is equal to B.

Description

technical field [0001] The technology relates to a joint, in particular to a high-pressure quick oil pipe joint. Background technique [0002] Couplings are generally used for hose connections, and generally include male and female connectors. When in use, just connect the male connector with the female connector. However, generally after the male connector and the female connector are docked, fluid can be introduced into the pipeline (usually a hose). Before the male joint and the female joint are butted, because the male joint or the female joint cannot bear pressure, the pipeline cannot pass fluid. In addition, in the existing joints, the internal structure of the male joint and the female joint is relatively complicated. When the male joint and the female joint are docked, the operation of connecting the internal channels of the male joint and the female joint is cumbersome and the connection speed is slow. Third, the sealing effect of the existing joints is not good,...

AI Technical Summary

Problems solved by technology

In addition, in the existing joints, the internal structure of the male joint and the female joint is relatively complicated. When the male joint and the female joint are docked, the operation of connecting the inner channels of the male joint and the female joint is cumbersome and the connection speed is slow.

Third, the sealing effect of the existing joints is not good, and it is easy to cause fluid leakage

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