CN2374683Y

CN2374683Y - Improved gas diversion structure of mini pump

Info

Publication number: CN2374683Y
Application number: CN 99233550
Authority: CN
Inventors: 张坤林
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-18
Filing date: 1999-06-18
Publication date: 2000-04-19
Anticipated expiration: 2009-06-18

Abstract

A micropump gas diversion improvement structure is characterized in that the micropump gas diversion improvement structure is composed of motor sub-assemblies, compression components and gas collection components. Through inserting the coupled rod of compression components into the off-center inclined hole of a motor rotary shaft, it drives the coupled rod in circle, which makes the coupled rod of the compression components compress air sac to delivery gas to the gas collection components and the gas is spouted from the gas output hole which is arranged in the gas collection component. The compression component of the utility model is provided with an air inlet. The gas inlet point and gas outlet point are divided into two points through the check valve which is arranged on the air inlet and thus the liquidity of gas in diversion can be improved and air output is more stable. When motor operates, the transverse rod is caused to do push action left and right in order to achieve the purposes of electricity saving and noise reduction.

Description

The micropump gas flow guiding improves structure

The utility model relates to a kind of micropump to be improved, and is specifically related to a kind of micropump improvement structure that increases the gas flow stability by change gas flow guiding path.

The micropump in prior art field is delivery air merely only, or carries out the air inlet and the task of giving vent to anger via same position, and need install a check device additional, just can reach the precision that is required, and gas also has the situation of having some setbacks generation because of structure is improper.As widely used electronic sphygmomanometer on the market, be to install a check device additional in the outside of micropump, make pressurized air unlikely backflow in pump when high pressure, cause measurement error.

The purpose of this utility model is the defective that overcomes prior art, provides a kind of micropump gas flow guiding to improve structure, utilizes different air inlet place in position and the place of giving vent to anger, and make gas flow more clear and coherent, and air output is also relatively stable.

The purpose of this utility model is to realize by following technological scheme.

The utility model compared with prior art has following advantage:

(1) can utilize air inlet place of diverse location and the place of giving vent to anger, make gas flow more smooth and easy, the more existing micropump of air output is relatively stable.

(2) formed air chamber in the gas collection parts, after seeing through runner gas being imported, can be uniformly with gas by gas smooth and easy hole ejection, and prevent that gas from can bring into play effect effectively by the film non-return pad that air chamber returns leakage, intercept gas and oppositely flow into by runner.

(3) continuous motion stem is arranged on the cross bar, only need insert in the eccentric inclined hole of rotatingshaft during assembling, makes cross bar do left and right sides push action when motor running, can reach the purpose of power saving and reduction noise.

Description of drawings:

Fig. 1 is the utility model three-dimensional exploded view;

Fig. 2 is the utility model motor sub-assembly stereogram;

Fig. 3 is the utility model compression member stereogram;

Fig. 4 is the utility model gas collection parts stereograms;

Fig. 5 is the utility model structural perspective.

Wherein: the protruding axle of 1-motor sub-assembly 101-motor body 102-

The eccentric inclined hole of 103-base 104-rotatingshaft 105-

106-suction port 20-compression member 201-cross bar

202-continuous motion stem 203-draw-in groove 204-fixed base

The 205-first safety check pore 206-is trip 207-air bag fixedly

208-pressing chamber 209-non-return catch 210-prevents drain gasket

211-housing 30-gas collection parts 301-runner

302-film non-return pad 303-gas delivery outlet 304-guiding gutter

The 40-bolt

The utility model is described in further detail below in conjunction with accompanying drawing.

As shown in Figure 1, the utility model comprises that mainly motor sub-assembly 10, compression member 20 and gas collection parts 30 form, in conjunction with after micropump utilize bolt 40 to give in conjunction with fixing by the outside.

Wherein motor sub-assembly 10 comprises: motor body 101, base 103 and rotatingshaft 104, extend a protruding axle 102 by motor body 101, and passing base 103 and rotatingshaft 104 fits, rotatingshaft 104 is provided with an eccentric inclined hole 105, is provided with a suction port 106 at side.

Compression member 20 comprises: cross bar 201, fixed base 204 and pressing chamber 208; Extend a continuous motion stem 202 by cross bar 201, and continuous motion stem 202 inserts in the eccentric inclined hole 105 of rotatingshaft with an eccentric angle, pressing chamber 208 is made up of air bag 207 and non-return catch 209, anti-drain gasket 210.With air bag 207 rears fixedly trip 206 pass that draw-in groove 203 engages mutually on fixed base 204 and the cross bar 201, be positioned on the fixed base 204 to be provided with the first safety check pore 205 with non-return catch 209 corresponding sections.

Gas collection parts 30 comprise: guiding gutter 304, be arranged in the housing 211 in the depression mode, connecting the first safety check pore 205 makes its maintenance unimpeded with air bag 207,207 symmetrical places establish runner 301 with air bag, runner 301 outer side covers have film non-return pad 302, as the usefulness of second safety check, to connect the guiding gutter 304 of the first safety check pore 205 and air bag 207, then there is the gas delivery outlet 303 of output gas in the outside.

As shown in Figure 2, motor body 101 combines with base 103, and protruding axle 102 passes base 103 and rotatingshaft 104 fits, and rotatingshaft 104 is provided with an eccentric inclined hole 105, is provided with a suction port 106 at side.Motor drives rotatingshaft 104 quick rotation after energising, the continuous motion stem 202 that inserts eccentric inclined hole 105 can be turned round thereupon.

As shown in Figure 3, continuous motion stem 202 inserts in the eccentric inclined hole 105 of Fig. 2, and continuous motion stem 202 is subjected to eccentric rotary compressing cross bar 201, and cross bar 201 continues compression bladders 207, and then produces gas and deliver in the gas collection parts 30.

As shown in Figure 3, Figure 4, in gas is delivered to gas collection parts 30 and in cross bar 207 whiles of 201 compression bladders, it is closed tightly that the first safety check pore 205 is influenced by air pressure inside, and second 302 on the check valve film non-return pad is subjected to the thrust gas of housing 211 upper runners 301 releases and forms the periphery unlatching; When treating air bag 207 involutions, the first safety check pore 205 is opened and also will be opened in the suction port 106 suction air bags 207 of guiding gutter 304 by base 103, and the second check valve film non-return pad 302 is influenced closely by air pressure inside then to close.

Gas collection parts 30 gas inside continue the cause of extruding because of air bag 207, after seeing through runner 301 gas being imported, uniformly with gas by gas delivery outlet 303 ejection, and prevent that the film non-return pad 302 that gas returns leakage from can effectively bring into play its effect, intercept gas and oppositely flow into by runner 301.

As shown in Figure 5, in conjunction with after micropump utilize bolt 40 to give in conjunction with fixing by the outside, and be provided with anti-drain gasket 210 at

compression member

20 and 30 of gas collection parts, make inner space maintenance certain pressure value, and make the air output of gas relatively stable.

Claims

1, a kind of micropump gas flow guiding improves structure, it is characterized in that it is made up of motor sub-assembly, compression member and gas collection parts, passes through bolt; Described motor sub-assembly comprises motor body, base and rotatingshaft, extends a protruding axle on the motor body, passes base and rotatingshaft fit, and rotatingshaft is provided with an eccentric inclined hole, and side is provided with a suction port; Described compression member comprises cross bar, fixed base and pressing chamber, extend a continuous motion stem by cross bar, insert in the eccentric inclined hole of rotatingshaft, pressing chamber is made up of air bag and non-return catch, air bag rear fixedly trip passes that draw-in groove engages mutually on fixed base and the cross bar, is positioned on the fixed base to be provided with the first safety check pore with non-return catch corresponding section; Described gas collection parts comprise guiding gutter, are arranged in the housing, and the first safety check pore is connected with air bag, symmetrical place establishes runner with air bag, the runner outer side covers has film non-return pad, connects the guiding gutter of the first safety check pore and air bag, and the gas delivery outlet is established in the outside.

2, micropump gas flow guiding according to claim 1 improves structure, it is characterized in that compression member and the gas collection parts drain gasket of setting up defences.