| 摘要 |
The invention refers to a headlamp cleaning device for motor vehicles comprising an elongate housing (2) formed with an inlet port (3) connectable to a source of pressurized cleaning fluid and a retractable hollow cleaning liquid supply tube (4) slidably arranged within the housing (2) and being biassed in the retracted position, at least one spray nozzle (6) provided at the distal end of the cleaning fluid supply tube (4) and a fluid valve at the proximal of the cleaning liquid supply tube (4) allowing ingress of the cleaning fluid into the tube once the fluid pressure exceeds a predetermined amount, the fluid valve being designed as a resilient closure cap which at the same time functions as a piston seal for the cleaning fluid supply tube (4) (FIG. 3).
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