Reducing two-way pipe joint and reducing two-way pipe joint component

Abstract

The invention relates to a reducing two-way pipe joint and a reducing two-way pipe joint component. The reducing two-way pipe joint component comprises the reducing two-way pipe joint, and fastening screw caps in threaded connection with the reducing two-way pipe joint, wherein the reducing two-way pipe joint is axially provided with two connecting sleeves; the inner diameter sizes of the two connecting sleeves are different; the outer diameter sizes of the two connecting sleeves are different; a main body of the reducing two-way pipe joint is provided with two connecting sleeves for coating connecting pipes and connecting threads corresponding to the connecting sleeves for connecting with corresponding fastening screw caps; the fastening screw caps are in threaded connection to the main body of the pipe joint; at least one elastic barb is arranged on the outer peripheral surfaces of the connecting sleeves in the peripheral direction; the head ends of the elastic barbs are connected with the connecting sleeves, and the tail ends are inclined to ports far from the sleeves; and the elastic barbs are elastically deformed when being extruded by the connecting pipes. The damage of pressing force to connecting hoses in screwing-up of the fastening screw caps can be reduced; the service life of the connecting pipes is prolonged; and the installation of the fastening screw caps is convenient.

Description

technical field [0001] The invention relates to the technical field of metal joints, in particular to a variable-diameter two-way pipe joint and a variable-diameter two-way pipe joint assembly. Background technique [0002] The variable-diameter trachea coupler is an important connecting part in the trachea connection. Most of the connection between the variable-diameter trachea joint and the trachea used in the market currently uses pressure rings, hot-melt, bonding, etc. to fix the trachea and the trachea joint together. These locking methods are not reliable enough because the connection between the trachea joint and the trachea is a smooth or grooved cylinder. A little force will cause air leakage and trachea to fall off, which will cause damage to the devices and parts connected by the trachea. A big security risk. The Chinese patent with the notification number CN203297815U discloses a quick connection joint for pipes, including a hose joint for connecting a hose and ...

AI Technical Summary

Problems solved by technology

[0002] The variable-diameter trachea coupler is an important connecting part in the trachea connection. Most of the connection between the variable-diameter trachea joint and the trachea used in the market currently uses pressure rings, hot-melt, bonding, etc. to fix the trachea and the trachea joint together. These locking methods are not reliable enough because the connection between the trachea joint and the trachea is a smooth or grooved cylinder. A little force will cause air leakage and trachea to fall off, which will cause damage to the devices and parts connected by the trachea. big security risk

The Chinese patent with the notification number CN203297815U discloses a quick connection joint for pipes, including a hose joint for connecting a hose and a hard pipe joint for connecting a hard pipe. A barb structure is provided, and a threaded structure that matches the compression nut is provided on the side of the hose joint close to the connection section. When in use, the hose is set on the connection section, and then the hose is compressed by the compression nut Fix it on the connecting section, so that the connection between the hose and the joint can be realized, but in order to ensure the sealing performance of the pipe joint, it is necessary to fill the space outside the barb and the connecting section in the process of compressing the hose with the compression nut In this way, the hose will be deformed and damaged. When the hose is stressed again in the axial direction, it will easily break the hose and reduce the service life of the hose. When the hose is compressed to deform the hose, it is necessary to Large locking force

Images