A device for hole pressurization and hole protection

Abstract

The invention is a hole pressurization and hole protection device. Including mounting seat, sleeve, piston rod, locking device, nozzle and expansion piece, the mounting seat is provided with a nozzle pipe connected to the external air source, the mounting seat is provided with an annular groove to press the sealing gasket, and the mounting seat , The sleeve and the gasket are connected to form a closed cavity structure. There is a locker in the cavity, and an installation groove is provided on the end surface of the inner cavity of the mounting seat. The expansion piece is inserted into the installation groove, and the expansion piece is pressed and fixed by the pressure piece. One end of the expansion piece is set outside the cavity, and the other end of the expansion piece is connected with the locking device. The locking device includes a locking hook and a locking device mounting seat. The expansion piece is connected with the locking device through a narrow groove, the locking device mounting seat is connected with the support at one end of the piston rod, the other end of the piston rod is provided with a handle, the support end of the piston rod is set in the sleeve, and the handle end of the piston rod It is arranged outside the sleeve, and the outside of the locking device is covered with a spring, and the two ends of the spring are respectively connected with the pressure piece and the support.

Description

technical field [0001] The invention belongs to the surface pressure measurement and pressure measurement hole protection of an aviation embedded air data sensor system, in particular to a hole pressurization and hole protection device. Background technique [0002] The embedded air data sensor system calculates atmospheric data by measuring the pressure distribution on the surface of the aircraft, which can meet the flight requirements that traditional atmospheric data such as high angle of attack, hypersonic speed, and stealth cannot meet. The pressure measuring holes on the surface of the aircraft are distributed on the curved surface of the front end of the fuselage. The layout is 5-φ2 holes, and the range is within the area of ​​φ10. -The gas paths of φ2 holes communicate with each other. When the aircraft is performing performance testing on the ground, it is necessary to send air pressure (including pressurization and pumping) to the pressure measuring hole to determ...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem that the traditional hole pressurizing device has no self-locking function, can only be used for pumping pressure and cannot protect the pressure measuring hole, the present invention provides a device for hole pressurization and hole protection

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