CN2799900Y

CN2799900Y - Multi-stage diaphragm pump

Info

Publication number: CN2799900Y
Application number: CN 200520090344
Authority: CN
Inventors: 王明显; 杨志超
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-18
Filing date: 2005-04-18
Publication date: 2006-07-26
Anticipated expiration: 2015-04-18

Abstract

The utility model relates to a multi-stage diaphragm pump, which comprises a pump body, a speed reducer, a slider-crank mechanism that is connected with an output shaft of the speed reducer, and a propelling rod which is connected with the slider-crank mechanism, wherein the propelling rod which is positioned in a working chamber of the pump body is provided with a plurality of butterfly diaphragms which are connected in series. Hydraulic media are filled in the working chamber and between every two adjacent diaphragms. The working chamber is provided with a material conveying flexible pipe inside, both ends of the flexible pipe are respectively connected with a material inlet port and a material outlet port of the pump body, and the material inlet port and the material outlet port of the pump body are respectively provided with a suction check valve and an exhaust check valve. The slider-crank mechanism and the propelling rod are driven by the speed reducer to make straight reciprocating movement. Through the reciprocating movement of the butterfly diaphragms arranged on the propelling rod, hydraulic media in the working chamber of the pump body drive the internal volume of the material conveying flexible pipe to shrink and expand to complete material conveyance. The utility model has the advantages that conveyed materials do not directly contact working parts of the pump. Therefore, the utility model has the advantages of corrosion resistance, wear resistance, non easy damage and leakage, high efficiency, low use cost, and long service life.

Description

Multi-stage diaphragm pump

Technical field:

The utility model relates to the pump class, specifically a kind of multi-stage diaphragm pump of conveying material.

Background technique:

Common pump structure is made up of rotor, blade, impeller, pump case etc. substantially.When conveying material, material and above-mentioned parts always directly contact, and cause the leakage of wearing and tearing, erosion and even the pump of parts, not only need the expensive structural material that can resist institute's conveying material erosion, and the increase maintenance frequency, shorten dramatically the working life that makes it cost increase, pump.

Summary of the invention:

In view of the deficiency that above-mentioned prior art exists, the purpose of this utility model provides that a kind of cost is low, the multi-stage diaphragm pump of long service life.

The purpose of this utility model is to realize like this, it comprises the pump housing, speed reducer and the slidercrank mechanism that links to each other with this speed reducer output shaft and the track bar that links to each other with this mechanism, it is characterized in that: the track bar of inserting in the pump housing active chamber is provided with a plurality of butterfly barrier films that are in series, be filled with hydraulic medium in the active chamber and between adjacent two barrier films, be provided with the conveying material flexible pipe in the active chamber, the two ends of this flexible pipe link to each other with the charging and discharging mouth of the pump housing respectively, are arranged with to suck one-way valve and discharge one-way valve in the charging and discharging mouth of the pump housing.Do straight reciprocating motion by speed reducer drive slidercrank mechanism and track bar, by being located at the to-and-fro motion of a plurality of butterfly barrier films on the track bar, the volume that hydraulic medium in the pump housing active chamber is driven in the conveying material flexible pipe dwindles and increase, thereby finishes the conveying of material.

The utility model has the advantages that conveying material does not directly contact with the workpiece of pump, thereby corrosion-resistant, wear-resistant, adopt a plurality of butterfly barrier films that are in series to form multistage barrier film, gain in strength greatly, not fragile, leakage cause user cost greatly to reduce, increase the service life.

Below in conjunction with accompanying drawing the utility model is explained.

Description of drawings:

Accompanying drawing is the utility model structural representation.

Embodiment:

By accompanying drawing as can be known, this multi-stage diaphragm pump comprises speed reducer 1, slidercrank mechanism 2 (identical with the existing slidercrank mechanism of doing straight reciprocating motion, Gu Tuzhong does not provide in detail), track bar 3 and by the pump housing 11, four the butterfly barrier films 4 that are in series, hydraulic medium 5, flexible pipe 7, charging and discharging mouth A, B and suck one-way valve 10 and discharge the material-handling pump that one-way valve 6 constitutes.Slidercrank mechanism 2 links to each other with speed reducer 1 output shaft, slide block links to each other with track bar 3, four butterfly barrier films 4 that are in series are connected with track bar 3 in inserting the pump housing 11 active chambers 8, the periphery of four butterfly barrier films 4 and the pump housing 11 inwalls are connected, in active chamber 8 and between the adjacent two butterfly barrier films, be filled with hydraulic medium 5, the hydraulic medium of filling forms the multistage barrier film of one between four butterfly barrier films 4 and the adjacent two butterfly barrier films, be provided with the flexible pipe 7 of conveying material in the active chamber 8, the two ends of this flexible pipe respectively with the advancing of the pump housing, discharging port A, B links to each other, in advancing of the pump housing 11, discharging port A, be arranged with in the B and suck one-way valve 10 and discharge one-way valve 6.Butterfly barrier film 4 and flexible pipe 7 adopt soft elastic material to make, as nitrile butadiene rubber, neoprene, fluorine rubber etc.Hydraulic medium 5 adopts hydraulic oil, adds antiwear additive, antioxidant, anti-vulcanzing agent etc. in this hydraulic oil, makes it barrier film, flexible pipe is anti-aging, increases the service life.When track bar 3 drives four butterfly barrier films 4 when reciprocating, drive flexible pipe 7 internal volumes by hydraulic medium and dwindle and increase.When flexible pipe 7 internal volumes increase, discharge one-way valve 6 and close, suck one-way valve 10 and open, flexible pipe 7 sucks material; When flexible pipe 7 internal volumes dwindle, discharge one-way valve 6 and open, suck one-way valve 10 and close, flexible pipe 7 is discharged material.This process is gone round and begun again, and material is transferred out continuously.Adopt a plurality of slidercrank mechanisms to form corresponding angle (do not omit among the figure and change), make not backlash of drive part, realize high efficiency.Sequence number 9 is for being transferred material among the figure.

Claims

1, a kind of multi-stage diaphragm pump, it comprises the pump housing, speed reducer and the slidercrank mechanism that links to each other with this speed reducer output shaft and the track bar that links to each other with this mechanism, it is characterized in that: the track bar of inserting in the pump housing active chamber is provided with a plurality of butterfly barrier films that are in series, be filled with hydraulic medium in the active chamber and between adjacent two barrier films, be provided with the conveying material flexible pipe in the active chamber, the two ends of this flexible pipe link to each other with the charging and discharging mouth of the pump housing respectively, are arranged with to suck one-way valve and discharge one-way valve in the charging and discharging mouth of the pump housing.