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Plunger pump with corrugated-pipe-shaped diaphragm piece

A technology of plunger pump and diaphragm, which is applied in the direction of pump components, variable displacement pump components, and components of pumping devices for elastic fluids, etc. It can solve the problems of debris pollution, low precision, and fast wear of the plunger, etc. Achieve the effect of reducing friction, high precision and stable conveying

Pending Publication Date: 2021-03-23
深圳市益思精密五金有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing plunger pump still has the following defects: during the continuous reciprocating movement of the plunger, the plunger rubs against the inner wall of the cylinder body, on the one hand, it is easy to produce debris to contaminate the liquid being transported, on the other hand, the plunger wears quickly, and it needs to be cleaned frequently. replace plunger
[0003] As a volume pump, the diaphragm pump has the advantage of long life, but it has the defect of low precision
[0004] At present, there is no positive displacement pump, which has the characteristics of high precision, stable delivery and long service life.

Method used

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  • Plunger pump with corrugated-pipe-shaped diaphragm piece

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] Please refer to figure 1 , the plunger pump includes a cylinder 8 , a plunger 4 , a bellows-shaped diaphragm 12 , and a reciprocating power mechanism 20 . Wherein, the cylinder block 8 includes a cylinder body portion 9 and a cylinder head portion 6, the cylinder body portion 9 and the cylinder head portion 6 are combined by a first screw, and a liquid inlet 2 and a liquid outlet are provided on the cylinder head portion 6. 7. The bellows-shaped diaphragm 12 is arranged in the cylinder body 9, and the edge of the mouth of the bellows-shaped diaphragm 12 is crimped between the cylinder body 9 and the cylinder head 6, thereby forming a The variable volume liquid delivery chamber 3 connected with the liquid inlet 2 and the liquid outlet 7, the volume of the liquid delivery chamber 3 changes with the expansion and contraction of the bellows-shaped ...

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Abstract

The invention discloses a plunger pump with a corrugated-pipe-shaped diaphragm piecece. The plunger pump comprises a cylinder body, a plunger, the corrugated-pipe-shaped diaphragm piece and a reciprocating type power mechanism, wherein a liquid inlet and a liquid outlet are formed in the cylinder body; the corrugated-pipe-shaped diaphragm piece is arranged in the cylinder body, an opening of the corrugated-pipe-shaped diaphragm piece is fixedly connected with the cylinder body, and a variable volume liquid feeding chamber is formed which communicates with the liquid inlet and liquid outlet; the plunger is arranged in the liquid feeding chamber; and the reciprocating type power mechanism is connected with the plunger and the corrugated-pipe-shaped diaphragm piece so as to drive the corrugated-pipe-shaped diaphragm piece to do telescopic motion and synchronously drive the plunger to do reciprocating motion in the liquid feeding chamber. The plunger is combined with the corrugated-pipe-shaped diaphragm piece, so that the pump has the characteristics of being high in precision, stable in conveying and long in service life.

Description

technical field [0001] The invention relates to the field of plunger pumps, in particular to a plunger pump with a bellows-shaped diaphragm. Background technique [0002] The plunger pump realizes the transportation of liquid through the reciprocating movement of the plunger in the cylinder. It has the characteristics of stable transportation and high precision. It is often used in liquid metering and liquid precision transportation. The existing plunger pump still has the following defects: during the continuous reciprocating movement of the plunger, the plunger rubs against the inner wall of the cylinder body, on the one hand, it is easy to produce debris to contaminate the liquid being transported, on the other hand, the plunger wears quickly, and it needs to be cleaned frequently. Replace plunger. [0003] As a volume pump, the diaphragm pump has the advantage of long life, but it has the defect of low precision. [0004] At present, there is no volumetric pump that ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B53/00F04B53/14F04B53/16
CPCF04B53/00F04B53/14F04B53/16F04B53/162
Inventor 陆军
Owner 深圳市益思精密五金有限公司
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