Scribing compass for manufacturing inner diameter and outer diameter of gasket in valve operation

The utility model discloses a scribing compass for manufacturing the inner diameter and outer diameter of a gasket in valve operation. The scribing compass comprises a rotary handle, a scribing compass arm and a scale, wherein a left arm of the scribing compass arm is connected with one end of the s...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHANG HONGYAN, ZHANG KUNXIAN, XIANG HAIYAN, LI XUEZHONG, SUI YINGZHANG, DU FENGBO, LIU QINGHUA, ZHANG LIMEI, LU NINGNING, XIANG CHUNYAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	HAND TOOLS MANIPULATORS PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS STORAGE MEANS FOR WORKSHOPS TRANSPORTING WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK
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Beschreibung
Zusammenfassung:	The utility model discloses a scribing compass for manufacturing the inner diameter and outer diameter of a gasket in valve operation. The scribing compass comprises a rotary handle, a scribing compass arm and a scale, wherein a left arm of the scribing compass arm is connected with one end of the scale, the other end of the scale penetrates through a through hole of a right arm of the scribing compass arm, the left arm and the right arm of the scribing compass arm are connected by the rotary handle, the connecting end of the left arm and the right arm of the scribing compass arm is provided with a hole which is provided with a thread buckle, the hole is in fit connection with a locking nut, the locking nut is provided with a grip handle, the surface of the grip handle is provided with a plurality of anti-slip grooves, the end of the locking nut is in a groove shape, the periphery of the groove is provided with a plurality of notches, and the interior of the groove is provided with an elastic ball correspondi