Self-induction pressure interlocking device

• Main Authors: LI JIAGUANG, ZHANG SHIPENG, XU MINGFA
• Format: Patent
• Language: English
• Published: 07.01.2015
• Subjects: BLASTING; CYLINDERS; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; PISTONS; SEALINGS; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model discloses a self-induction pressure interlocking device, and the device comprises a handle, a screw, a rocker arm, a pin device, a pressing cover, a self-locking component, a big cover, an upright, a shell body and a cylinder, wherein the cylinder is installed in the shell body, the upright is installed on the upper end of the shell body, the big cover is buckled to the top of the cylinder and a sealing washer is arranged between them, the outer wall of the big cover is connected with the inner wall of the upright, the rocker arm is installed above two uprights, the screw passes through the rocker arm and connects with the pin device, the pressing cover is installed above the pin device, the self-locking component is arranged between the pressing cover and the big cover, and the handle is installed on the outer end of the screw. In the self-induction pressure interlocking device, a mandrel is driven via pressure from the cylinder to be upwardly moved in a mandrel sleeve, the self-locking pin is downwardly moved under its own gravity, after the pressure in the cylinder reaches a certain value, the self-locking pin drops into pin holes in the mandrel, the handle cannot be rotated, thus interlocking can be realized, the big cover cannot be opened and a pressure container can be ensured in using security and reliability.