Pressure gauge

The utility model discloses a pressure gauge, including copper sleeve, plastics table piece and spring pipe, the inside cavity of copper sleeve, the top of the copper sleeve outside is provided with the slot, and plastics table is gone into to ditch inslot and copper sleeve fixed connection through the cooperation card, is provided with the calathiform base at the inside of the top of of copper sleeve, spring tip end insert in the calathiform base and the cooperation totally, be fixed with the pointer in the outside of spring pipe, be provided with the dial plate between the terminal of pointer and spring pipe, the dial plate top is stamped transparent table and is covered. The utility model discloses the integration that utilizes modern crafts to make plastics table and copper connect the perfection is in the same place, has not only saved the cost of manufacture but also can guarantee the quality of product, the design of calathiform base is fixed and is sealed for follow -up spring pipe and leave enough spaces on the copper sleeve, whole device has good improvement in sealed degree for measurement accuracy also obtains better assurance, and more importantly save material has reduced manufacturing cost.