Air tightness detection structure

The utility model belongs to the technical field of detection devices, and discloses an air tightness detection structure, which comprises a shell, a barometer is fixedly mounted in the middle of the top end of the shell, a fixing plate is fixedly sleeved in the middle of an inner cavity of the shel...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YAN ZHONG, LYU WENXIAO, REN GUOXIAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	HAND TOOLS MANIPULATORS MEASURING PERFORMING OPERATIONS PHYSICS PORTABLE POWER-DRIVEN TOOLS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING TRANSPORTING
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Beschreibung
Zusammenfassung:	The utility model belongs to the technical field of detection devices, and discloses an air tightness detection structure, which comprises a shell, a barometer is fixedly mounted in the middle of the top end of the shell, a fixing plate is fixedly sleeved in the middle of an inner cavity of the shell, and a cylinder is fixedly sleeved in the middle of the fixing plate. Through the arrangement of the barometer, the piston, the connecting plate, the mounting block and the lead screw, through the design of the piston, gas is not prone to leaking out, water is stored between the piston and the mounting block, and therefore good sealing performance can be achieved, when the driving motor operates, the lead screw rotates, and through the cooperation between the connecting plate and the lead screw, the sealing performance is good. The air pressure above the fixing plate can be increased, the barometer can display the numerical value of the air pressure, and when the numerical value displayed by the barometer is decr