Novel piston used in plunger type water pump

Abstract

The invention relates to a novel piston which is applied to a plunger-typed water pump and consisits of a metal core, a fixing ring and a piston head, wherein, the metal core which is made of magnetic conductive metallic material is a hollow columnar structure, the connecting end of the metal core is opened with a groove which is communicated and coaxial with the hollow through hole of the metal core, the piston head is a T-shaped hollow structure, the inner bore of the fixing ring leads the fixing ring to be just sheathed on the shaft of the piston head, the shape and size of the outer section of the fixing ring corresponds to those of the groove section of the metal core in an interference fit way, the depth of the groove of the metal core is larger than the thickness of the T-shaped piston head connecting face, and when being assembled, the connecting end of the piston head is inserted in the groove of the metal core, and the fixing ring which is sheathed on the shaft of the piston head is tightly pressed on the interstitial position after the matching of the groove of the metal core and the connecting end of the piston head by a special holding-down device. The invention is characterized by novel structure, adopts a combined structure, and has low cost and easy assembly.

Description

technical field [0001] The invention relates to the technical field of the component structure of a plunger type water pump, in particular to a novel piston used in a plunger type water pump. Background technique [0002] At present, plunger-type water pumps have been widely used in various fields, especially miniature plunger-type water pumps, which are widely used in products such as coffee machines and steam generators. The key component in the plunger water pump is the piston that can reciprocate under half-wave variable magnetism. The structure and quality of the piston have a great influence on the plunger water pump. The existing pistons are often integrated by magnetically conductive metal. It is made of high-quality materials. This structure needs multiple machining processes to complete, and it needs to spend more materials. How to improve the structure of the piston to reduce the cost has become a problem to be solved. Contents of the invention [0003] The obj...

AI Technical Summary

Problems solved by technology

The key component in the plunger water pump is the piston that can reciprocate under half-wave variable magnetism. The structure and quality of the piston have a great influence on the plunger water pump. The existing pistons are often integrated by magnetically conductive metal. It is made of high-quality materials. This structure needs multiple machining processes to complete, and it needs to spend more materials. How to improve the structure of the piston to reduce the cost has become a problem to be solved.

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