Currently, thin-walled pipelines have obvious adv […]
Currently, thin-walled pipelines have obvious advantages in terms of production costs, connection security, and reduction of waste of resources. They have become the country's leading promotion and management. Common types of connections include card presses, ring presses, flanges, and sticks. Junction type, self-threaded type, socket type, concave ring type, clamp type, bolt type, welding type, card convexity and other connection methods, but in the actual construction process, they all show the following disadvantages in different degrees: On-site construction difficulties , Daily changes Maintenance limitations, high technical requirements for construction personnel, rapid assembly and connection difficulties, liquid residues easily generated by the connection gap, installation quality due to the use of the environment, when the fluid pressure in the pipe is unstable or the pressure increases, there is a large pipeline The axial separation force is very easy to make the connection out of the technical bottleneck caused by fluid leakage.
The “expanded shaft core lock type” connection structure patent is characterized in that the end of the pipe body is turned radially outward to form a circle flared flared shape, and the pipe connection nut and the pipe connection joint inner hole are matched with the flare body flare speaker. The inclined surface and through the inclined surface are in balance with the flared flare body of the pipe body, and then the movable core is added in combination with the seal ring to form a three-point axial self-locking tight fastening. Through this design, the axial direction of the pipe and the pipe is increased. The strength of the separation reduces the problem of liquid residue generated by the gaps in the pipes that are connected and derived. The connection is changed from the previous hard connection, which is easily affected by the external force leakage, the adhesive connection is not firm, the compression connection is easy to loosen, the flange connection interface is small, and the residual void inside the convex ring is large, and the connection is connected from the pipeline to the pipeline installation. A full range of technological innovations was carried out.