Rotary quick connection joint

Abstract

The invention discloses a rotary quick connection joint comprising upper and lower shells which are connected in a screwed way. A ring part is fixedly installed in the upper shell. The ring part comprises at least one circle of metal ring. A lead is welded on the metal ring. An in guide cylinder insulating plate is fixedly installed in the lower shell. A metal guide cylinder is fixedly installed on the insulating plate. A lead is welded on the guide cylinder. A spring is installed in the guide cylinder. One end of the spring is connected with the bottom part of the guide cylinder and the other end is connected with a metal support. The metal support and the spring perform telescopic motion along the axis of the guide cylinder. Metal rolling parts are installed on the part stretching out of the guide cylinder of the metal support. Each circle of metal ring is opposite to one corresponding rolling part so that each rolling part is enabled to move along the corresponding metal ring in the screwing process of the upper and lower shells and each rolling part is enabled to be abutted against the corresponding metal ring under the effect of the spring after completion of screwing of the upper and lower shells. Quick connection can be realized and reliable transmission of electric power signals can also be ensured so that the structure is simple and practical and the service life is long.

Description

technical field [0001] The invention relates to a joint for electrical equipment, especially a rotary quick connection joint. Background technique [0002] For electrical equipment used in explosion-hazardous environments, it has strict explosion-proof and explosion-proof requirements for its shell structure. Similarly, the connectors used to connect these electrical equipment also need to meet explosion-proof requirements. [0003] At present, the existing flameproof joints usually include upper and lower shells correspondingly designed with flameproof flat joint surfaces. During the fastening process of the upper and lower shells, the wires in the two will be quickly inserted and connected through the internal plug-in. When the upper and lower shells are fastened together, the upper and lower shells will be fixed by bolts. connect. It can be seen from actual use that this flameproof joint mainly has the following disadvantages: First, the internal plug-in structure of th...

AI Technical Summary

Problems solved by technology

It can be seen from actual use that this flameproof joint mainly has the following disadvantages: First, the internal plug-in structure of the joint is complicated, the manufacturing process is difficult, and the manufacturing accuracy cannot be guaranteed, so the effective connection and connection reliability of the wires on both sides cannot be guaranteed. ; Second, the bolts used to connect the upper and lower shells are prone to fall off during use, which reduces the reliability of power transmission and the safety of the joint on the one hand, and on the other hand, in the process of use, the joints should not be lost. In addition to some explosion-proof functions, there are still great potential safety hazards, and the safe operation of electrical equipment cannot be guaranteed.

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