公开(公告)号：WO1997015478A1

公开(公告)日：1997-05-01

申请号：PCT/EP1996004267

申请日：1996-09-30

Applicant: WALMEC S.P.A. ,  ZANETTI, Paolo

Inventor： WALMEC S.P.A.

IPC: B60S05/04

CPC classification number: B60S5/043 ,  Y10T137/3677 ,  Y10T137/3693

Abstract: A tyre inflation pistol comprises a high pressure supply side (22), a passageway (28) leading to a pressure gauge, a passageway (26) leading to the tyre and a valve assembly. The valve assembly is arranged to close off the gauge passageway (28) when the tyre is being inflated to prevent damage to the gauge. The valve assembly comprises: a first valving element (14, 32) which controls air flow from the high pressure supply (22) to the tyre side (26); a second valving element (40, 42, 44, 46, 48) which slides in an axial hole (26) in the first valving element and acts to close off an aperture (54) leading to the pressure gauge; and an operating lever (18). Initially, the tyre side (26) of the valve is connected to the pressure gauge side (28) via an aperture (54). Operating the lever (18) moves the second valving element (42, 46) to close off the aperture (54). Further movement of the lever (18) pushes the head (48) of the second valving element against the first valving element (14) and opens the high pressure supply side (22) to the tyre side (26).

Abstract translation: 轮胎充气手枪包括高压供应侧（22），通向压力表的通道（28），通向轮胎的通道（26）和阀组件。 阀组件布置成当轮胎充气时关闭计量通道（28），以防止损坏仪表。 阀组件包括：第一阀元件（14,32），其控制从高压供应（22）到轮胎侧（26）的空气流; 第二阀元件（40,42,44,46,48），其在所述第一阀元件中的轴向孔（26）中滑动，并且用于封闭通向所述压力计的孔（54）; 和操作杆（18）。 最初，阀的轮胎侧（26）经由孔（54）连接到压力计侧（28）。 操作杆（18）使第二阀元件（42,46）移动以关闭孔（54）。 杠杆（18）的进一步移动将第二阀元件的头部（48）压靠第一阀元件（14）并将高压供给侧（22）打开到轮胎侧（26）。