CN2248260Y

CN2248260Y - Infusion electric pump

Info

Publication number: CN2248260Y
Application number: CN 95210321
Authority: CN
Inventors: 李继铭; 姚伟
Original assignee: FEIDA ELECTROMECHANICAL EQUIPMENT Co Ltd GANSU PROV
Current assignee: FEIDA ELECTROMECHANICAL EQUIPMENT Co Ltd GANSU PROV
Priority date: 1995-04-28
Filing date: 1995-04-28
Publication date: 1997-02-26
Anticipated expiration: 2005-04-28

Abstract

The utility model relates to an electric pump which is used for conveying liquid, emulsion, water, etc. The utility model is composed of a motor, a pump body, blades, a pump cover, etc., wherein the pump body is provided with a liquid suction inlet, a corresponding passage, a liquid outflow passage and a corresponding outlet, the shapes of the blades are planes, an involute groove is arranged on the circumferential direction of the pump cover, and the inner structure of the pump forms an involute-shaped flow passage to provide a centripetal eddy flow accelerating passage for fluid. Thus, the structure of the pump body is optimized, and the utility model has suction lift capability, can be conveniently arranged outside of liquid to work and has the advantages of small size, high work efficiency, low noise and long service life.

Description

Liquid delivering electric pum p

The utility model relates to a kind of electric pump, the electric pump of liquid such as particularly a kind of transporting water, oil, emulsified liquid.

At present be used for carrying the electric pump of cooling liquid to belong to centrifugal pump on lathe, the defective of such pump is that the pump housing must immerse in the liquid and could work more, use inconvenience, and its structured liquids flow resistance is bigger, often burns out motor easily, noise is big, the power consumption height, and volume is big.

The purpose of this utility model is to provide a kind of and installs and uses outside liquid, and volume is little, noise is little, power consumption is little, the Liquid delivering electric pum p of high working efficiency.

Implementation of the present utility model is as follows: it is made up of motor, the pump housing, blade, pump cover and Sealing etc., motor shaft feeds the pump housing, be connected with blade, it is characterized in that the pump housing has a fluid intake and corresponding liquid flow channel, have a liquid flow pass and corresponding liquid outflow opening, blade has plane shape, match with the flow channel for liquids of the pump housing,, be provided with nearly involute groove at the circumferencial direction of pump cover.Through adopting said structure, constituted a nearly involute shape fluid course in pump housing inside, this runner provides under the situation of power at rotor blade, then form when meeting flow of fluid entad eddy current acceleration principle, the best fluid passage of comprehensive each fluid resistance coefficient factor, thereby the overall structure of pump is optimized, working efficiency improves, volume significantly reduces, and make pump possess suction Cheng Nengli, realized that the pump housing works in the purpose outside the liquid, changed the situation that existing pump can only be worked in liquid.

Advantage of the present utility model is, because the pump housing works in outside the liquid, thereby easy to install, and enlarged the scope of installing and using, and noise is reduced, and the pump housing life-span improves greatly.

The embodiment who provides below in conjunction with accompanying drawing further specifies the utility model.

Fig. 1 is the utility model overall structure figure.

Fig. 2-3 is the utility model Fig. 1 pump body structure figure.

Fig. 4 is the utility model Fig. 1 blade structure figure.

Fig. 5-6 is the utility model Fig. 1 pump cover structural drawing.

According to Fig. 1, present embodiment has motor 1, the pump housing 2, blade 3, pump cover 4.According to Fig. 2-3, have the motor cover in aggregates 5 on the present embodiment pump housing 2 with it, this designs simplification the pump housing 2 annexation with motor 1, shortened the length of motor shaft, make the complete machine compactness, reliably, have fluid intake 6 and respective liquid flow channel 7 on the pump housing 2, have liquid flow pass 8 and respective liquid outflow opening 9.According to Fig. 4, plane blade 3 is made by copper product.According to Fig. 5-6, the circumferencial direction of pump cover 4 is provided with nearly involute groove 10.With reference to Fig. 1, Fig. 2-3 and Fig. 5-6, the casing of motor 1 connects with the motor cover 5 usefulness bolts of the pump housing 2 one ends, the motor shaft of motor 1 puts in the pump housing 2 via bearing that is arranged on motor cover 5 places on the pump housing 2 and the spring sealed circle that is arranged on close pump housing inwall place on the pump housing 2, at motor shaft end plane blade 3 is installed, in the side that plane blade 3 is housed of the pump housing 2, have pump cover 4 and be connected with the pump housing 2.The utility model has reduced gap between blade 3 and the pump housing 2 inwalls according to fluid slit principle, and has used plane blade 3, and the flow channel for liquids resistance is reduced, and produces and inhale the journey active force.When using the utility model, it can be installed on any suitable position outside the liquid, connect a flexible pipe, flexible pipe is fed liquid in the liquid inlet 6 of the pump housing 2.Open motor 1, then plane blade 3 begins to rotate, because blade 3 has than slight drag, and the effect of the slit between blade 3 and the pump housing 2 inwalls, pump produces suction, liquid is sucked fluid passage 7, and liquid is entered in the pump housing, under the effect of nearly involute concentrated flow 10 on the pump cover 4, form the nearly involute runner of liquid, promptly meet the entad runner of eddy current acceleration principle of fluid, and make outside the liquid excavationg pump through liquid flow pass 8 and liquid outlet 9.The utility model is little except volume, and is easy for installation, outside the low characteristics of noise, also has the effect height, the characteristics of power consumptive province.The utility model not only can replace the three-phase pump that uses on the existing lathe, and provides supporting electric pump for numerical control machine tool.The utility model also can be made as the single-phase product for civilian use, is used for shower, solar water supply and the circulation of family expenses soil heating installation etc.

Claims

1. Liquid delivering electric pum p of being made up of motor (1), the pump housing (2), blade (3), pump cover (4) etc. is characterized in that:

[1]. have a fluid intake (6) and corresponding liquid flow channel (7) on the pump housing (2), have a liquid flow pass (8) and corresponding liquid outflow opening (9),

[2]. blade (3) has plane shape,

[3]. the circumferencial direction of pump cover (4) is provided with nearly involute groove.

2. Liquid delivering electric pum p according to claim 1 is characterized in that: have the motor cover in aggregates with it (5) on the described pump housing (2).