Street-sweeping car
The invention provides a street-sweeping car. The street-sweeping car comprises a first overflow valve, a first three-position four-way directional control valve and a second three-position four-way directional control valve, wherein the first three-position four-way directional control valve and th...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention provides a street-sweeping car. The street-sweeping car comprises a first overflow valve, a first three-position four-way directional control valve and a second three-position four-way directional control valve, wherein the first three-position four-way directional control valve and the second three-position four-way directional control valve are M-type directional control valves; anoil inlet of the first overflow valve is connected with an oil inlet of the first three-position four-way directional control valve, an oil return inlet of the first overflow valve is connected withan oil inlet of the second three-position four-way directional control valve, an oil return inlet of the first three-position four-way directional control valve is connected with the oil inlet of thesecond three-position four-way directional control valve, an output end of the first three-position four-way directional control valve is connected with a sucker lifting oil cylinder, and an output end of the second three-posit |
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