End hose, end hose stiffness control system and pipeline transportation machinery

Abstract

The invention relates to the technical field of pipeline transportation machinery, and discloses an end hose, which is arranged at the tail end of a transportation pipeline and comprises a hose body. A feeding port of the hose body is communicated with a discharging port at the tail end of the transportation pipeline, at least part of the outer side of the hose body along the length direction is provided with an elastic container, and pressure inside the elastic container can be adjusted so that the stiffness of the end hose is adjusted. The pressure inside the elastic container is increased after media are filled into the elastic container, the surface tension of the elastic container can be increased along with the pressure, the stiffness of the elastic container and the hose body in the length direction is enhanced, the stiffness of the end hose can be adjusted by adjusting the pressure inside the elastic container to meet the requirements of different applications scenarios on the stiffness of the end hose, substantial swing of the end hose in transportation can be prevented, splashing of materials is decreased, material distribution is more convenient, and personal safety of operators is guaranteed. The invention further discloses an end hose stiffness control system and pipeline transportation machinery.

Description

technical field [0001] The invention relates to the technical field of pipeline conveying machinery, in particular to an end hose. The invention also relates to a terminal hose stiffness control system and a pipeline conveying machine. Background technique [0002] For pipeline conveying machinery used to convey fluids, the end of the conveying pipe is usually provided with a terminal hose, which is especially common on concrete pump trucks. [0003] The concrete pump truck pumps the concrete to the construction point through the concrete delivery pipe arranged along the boom. In order to facilitate the distribution, an end hose is usually added at the end of the boom. The inlet of the end hose is connected with the end of the concrete delivery pipeline. The feed port is used to discharge the concrete. The end hose is usually made of flexible material. The operator can manually pull the end hose to increase the accuracy of the material distribution. At the same time, the en...

AI Technical Summary

Problems solved by technology

[0004] When the concrete pump truck is performing pumping work, if the outlet pressure is too high, it will cause a large force on the end hose, and the flexibility of the end hose makes the end hose appear sharply when the pumping pressure is high. When the mud or concrete is pumped out for the first time or when it contains debris or air, it will cause the end hose to swing; when the boom performs lateral rotation, whether it is starting or emergency stop, it will cause the end hose to swing

[0005] It can be seen that when the concrete pump truck is pumping, the end hose is prone to swinging, and the swinging of the end hose is easy to splash the material, which not only causes inconvenience to the fabric, but also poses a great hidden danger to the personal safety of the operator.

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