Inner Expansion Quick Clamp Inflatable Joint

Abstract

The invention relates to the field of pressure control valves, in particular to an internal-expanding-type quickly-clamping gas charging connector. The connector is characterized in that a main shaft is included, the main shaft is of a hollow stepped shaft-shaped structure, one end of the main shaft is provided with sealing tube threads and is connected with a KZDP quick connection body, the tail end of the main shaft is provided with outer threads, the two sides of two cylindrical sections in the middle of the main shaft are symmetrically provided with two parallel planes respectively in a machined mode, and the parallel plane connected with a push rod handle is provided with symmetrical thread counter bores; the U-type push rod handle is arranged in the middle of the main shaft, and the two sides of the push rod handle are connected with the main shaft through screws; a sliding block is arranged in the middle of the main shaft in a sleeved mode and is of a hollow stepped shaft-shaped structure, and the outer side of one end of the sliding block is provided with a rubber gasket; the tail end of the main shaft is sleeved with at least three rubber sealing rings, at least two sleeves and an inner thread sleeve, the rubber sealing rings, the sleeves and the inner thread sleeve are arranged at the tail end of the main shaft at intervals in a sleeved mode, the inner side of the inner thread sleeve is provided with threads, and the inner thread sleeve is connected with the outer threads at the tail end of the main shaft. The internal-expanding-type quickly-clamping gas charging connector has the advantages of being simple in structure, quick and convenient to operate, high in production efficiency, wide in adaptability and the like, and can be widely used in various industries.

Description

technical field [0001] The invention relates to the field of air pressure control valves, in particular to an internal expansion type quick clamping inflation joint. Background technique [0002] In actual production, when the pipeline (generally with a long length) needs to be inflated with gas and then put into water for leak detection or stored under pressure with gas, a quick connector is required. One end of the quick connector is connected to the inflation device, and the other end is used for the inflation tube. Road inserted. [0003] The quick connectors in the prior art have the following disadvantages and deficiencies during use: [0004] 1) The quick connectors in the prior art have a complicated structure and short service life; [0005] 2) The quick joints in the prior art are directly clamped outside the pipeline during use, which is a rigid clamp, which is easy to cause pinch marks and damage to the surface of the nozzle, which affects the use of the pipeli...

Images