CONNECTING STRUCTURE FOR VACUUM SYSTEM

申请公布号：

US2014203546(A1)

申请号：

US201414153083

申请日期：

2014.01.13

申请公布日期：

2014.07.24

申请人：

HON HAI PRECISION INDUSTRY CO., LTD. ;HONG FU JIN PRECISION INDUSTRY (ShenZhen)CO., LTD.

发明人：

XIONG SHE;LI BING

分类号：

F16L17/00

主分类号：

F16L17/00

地址：

New Taipei TW

摘要：

A connecting structure includes housing, a first fixing member, a second fixing member, a sealing member, and an elastic member. A stepped hole is defined on the housing, and includes a first vent, a second vent, and a third vent communicating with each other. A diameter of the second vent is gradually decreased from the first vent toward the third vent, thereby forming a resisting surface on a periphery of the second vent. The first fixing member and the second fixing member are mounted on opposite ends of the housing. The sealing member includes a sealing portion with an exhaust opening. The sealing member is received in the first and second vents, and resisting against the first fixing member. The exhaust opening communicates with the first and second vents. The elastic member is received in the third vent, and resisting between the second fixing member and the sealing member.

主权项：

1. A connecting structure, configured for connecting with a vacuum generator and at least one suction cup to suction on a workpiece, comprising: a housing, the housing is cylindrical in shape; a first fixing member connected with one end of the housing; a second fixing member connected with other end of the housing; a sealing member; and an elastic member, wherein a stepped hole is defined in the housing, and includes a first vent, a second vent, and a third vent communicating with each other in that order; a diameter of the second vent is gradually decreased from the first vent toward the third vent, thereby forming a resisting surface on an inner surface of the second vent; the first fixing member is mounted on the end of the housing near the first vent, and is configured for connecting with the suction cup; the second fixing member is mounted on the other end of the housing near the third vent, and is configured for connecting with the vacuum generator; the sealing member comprises a sealing portion with an exhaust opening, and the sealing portion is received in the first vent and the second vent, and resisting against the first fixing member; the exhaust opening communicates with the first and second vents; the elastic member is received in the third vent, and resisting between the second fixing member and the sealing member to form a ventilation gap between the sealing portion of the sealing member and the resisting surface of the second vent, and the ventilation gap communicates with the exhaust opening of the sealing member; when air leakage between the suction cup and the workpiece is greater than a predetermined value, the sealing portion is pressed and moved by compressing the elastic member, thereby having the sealing portion and the resisting surface resisting tightly thereby plugging the ventilation gap and sealing the third vent.