TRAVEL SWITCH

摘要

A travel switch comprises a housing (1). A cavity (5) is arranged in the housing (1). A two-ring base is disposed in the cavity (5). The outer-ring base (9) is provided with static contact pieces (121, 122, 123, 124), and the inner-ring base (10) is provided with moving contact pieces (141,142), and static contact points (15) of the static contact pieces (121, 122, 123, 124) and moving contact points (16) of the moving contact pieces (141,142) are all located between the outer-ring base (9) and the inner-ring base (10). The travel switch further comprises an operation head (2). The operation head (2) penetrates through the housing (1) and connects to a connecting rod (4) in the housing (1). The connecting rod is connected to the moving contact pieces and controls by linkage, contacts and separations of the moving contact pieces and the static contact pieces. In the travel switch, by using a two-ring base structure, contact points and an operation system are condensed within the cavity of the housing; and the whole volume of the travel switch is reduced; on the premise that electric clearance and creepage distance under the condition of 230V/6A AC-15 and 230/0.25mA DC-13 are satisfied, the appearance size of the travel switch is reduced, and the range of application is extended; the present invention has a good sealing effect and a high level of protection; in a case in which a basic structure remains unchanged, the operation head can be more diversified and more common in use.