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Raised tri-wheel assembly of diaphragm pump

A cam three-wheel, diaphragm pump technology, applied in pump components, variable displacement pump components, components of pumping devices for elastic fluids, etc., can solve problems such as easy loosening of bearings, vibration of diaphragm pumps, and difficulty in ensuring accuracy. , to ensure rigidity and accuracy, prevent axial movement, and improve production efficiency

Inactive Publication Date: 2015-04-29
曾宪雄
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This structure reduces the cost, but the hardness of the plastic material is insufficient, and the accuracy is difficult to guarantee. After a period of operation, the bearing in the bearing chamber is easy to loosen, causing the diaphragm pump to vibrate and generate noise

Method used

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  • Raised tri-wheel assembly of diaphragm pump

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Experimental program
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Embodiment Construction

[0008] Such as figure 1 As shown, a convex three-wheel assembly of a diaphragm pump, the convex three-wheel is an injection molded part, consisting of a bearing sleeve 1 and three balance wheels 2 evenly arranged at the bottom of the bearing sleeve 1 . The bearing chamber wall of the bearing sleeve 1 is inlaid with a metal bushing 3. In the specific implementation, the metal bushing 3 and the injection mold of the convex tricycle are molded together, and then injection molded. The metal bushing 3 is firmly embedded on the injection molded part. In order to make the metal bushing 3 more firmly combined with the injection molded part, the bottom of the metal bushing 3 is formed with a flange 4, and at least one slot 5 is opened on the flange 4, and plastic can be filled on the flange 4 during injection molding Those gaps make the two tightly combined. The open end of the metal bush 3 is formed with several bush ears 6, and the eccentric bearing 7 is embedded in the bearing cha...

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PUM

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Abstract

The invention discloses a raised tri-wheel assembly of a diaphragm pump. The raised tri-wheel assembly is an injection molding piece and consists of a bearing sleeve and three balance wheels uniformly distributed on the bottom end of the bearing sleeve; an eccentric bearing is embedded and fixed in the bearing sleeve; a metal bushing is embedded into the chamber wall of a bearing chamber of the bearing sleeve; the eccentric bearing is embedded into the metal bushing. Since the metal bushing is embedded into the bearing chamber of the raised tri-wheel injection molding piece, the rigidity and the precision of the bearing chamber can be ensured, and the axial shift of a bearing possibility happing in a long-term transfer process can be avoided; the cost can be saved and the production efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of diaphragm pumps, in particular to a miniature electric diaphragm pump applied to water dispensers. Background technique [0002] At present, some water dispensers are equipped with miniature electric diaphragm pumps to realize electric water pumping. The convex tricycle in the diaphragm pump is an important part of power transmission. It consists of a bearing sleeve and three balance wheels evenly arranged at the bottom of the bearing sleeve. An eccentric bearing is embedded and fixed in the bearing sleeve, and the rotation of the motor is controlled by the eccentric bearing. The movement is transformed into the front and rear periodic reciprocating motion of the balance wheel, and the balance wheel is used to push the diaphragm back and forth to move back and forth, so that the volume of the working chamber is changed periodically, forcing the one-way valve pads located at the water inlet and water outle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B43/04F04B53/00
Inventor 曾宪雄
Owner 曾宪雄