CN208138121U - A kind of novel vertical is eccentrically rotated vacuum diaphragm pump - Google Patents

Abstract

The utility model discloses a kind of novel vertical and is eccentrically rotated vacuum diaphragm pump, and motor is fixed below pedestal, and drive shaft both ends are connected in the eccentric through-hole of eccentric wheel and the central through hole of curved bar, and motor is transmitted in curved bar by eccentric wheel and drive shaft；Air bag seat is mounted on the base, and the first gas outlet is opened up between the mounting hole of air bag；Air bag group is mounted on air bag seat, and air bag includes entity and cyst wall, and cyst wall is bowl-shape in back-off, the top surface of entity is located on plate face, and the bowl side of cyst wall connects plate face upper lateral part, opens up the second gas outlet between air bag, air bag is nested in mounting hole, the bottom of entity is mounted on the strut of curved bar；Valve seat is closed to be mounted in air bag group, upper cover is closed to be mounted on valve seat, corresponded between valve seat and upper cover air bag formed outer ring inlet chamber, center outlet chamber, into and out of stomata on install unidirectionally into and out of air valve, suction nozzle is formed on valve seat, valve seat opens up third gas outlet in outlet chamber.This arrangement works is high-efficient, long service life, lower noise.

Description

A kind of novel vertical is eccentrically rotated vacuum diaphragm pump

Technical field

The utility model relates to a kind of vacuum pump, in particular to a kind of novel vertical is eccentrically rotated vacuum diaphragm pump.

Background technique

Vacuum pump, which refers to, to be obtained using machinery, physics, chemically or physically chemical method to being evacuated by pumping container The device or equipment of vacuum.

In the prior art, vacuum pump is using air pump structure, by the working principle reverse utilization of air pump, by air pump Inlet end hermetically connects on by pumping container, and the outlet side of air pump is opened and is communicated with atmosphere, so will be by the gas in pumping container Body extraction.

There are following defects for above structure：

One, as shown in Figure 1,100 both ends of drive shaft are mounted in the eccentric orfice of eccentric wheel 200 and the centre bore of curved bar 300 In, and the centre bore of the eccentric orfice of eccentric wheel 200 and curved bar 300 all uses blind hole to design, when imposing pumping action, on the one hand Curved bar 300 is taken offence by the transmission offer suction band of motor 400, and capsule 500 is outside to be evacuated, and the lower end of another aspect drive shaft 100 is by inclined The eccentric orfice of heart wheel 200（Blind hole）Bottom support, and suction direction is contrary with support force, and actually active suction is caused to subtract Small, suction is insufficient, and pumping effect is poor.If promoting pumping effect, generally by electric current is increased, power of motor is improved, is made It obtains pumping action to accelerate, but energy loss in this way is also big.

Two, as shown in Fig. 2, the cyst wall 510 of air bag 500 is connect with the following side of plate face 530, the entity 520 of air bag 500 is in Cylinder is easy to appear interference between the entity 520 and cyst wall 510 of air bag 500, friction is big, and service life reduces, in order to retain Safety clearance, can only do 520 outer diameter of entity of air bag 500 small, but flow is restricted, and working efficiency is also low, is unable to satisfy Customer demand.

Three, air-breathing, the gas circuit of exhaust are short, and noise is big when work.

Utility model content

The purpose of this utility model is to provide a kind of novel verticals to be eccentrically rotated vacuum diaphragm pump, to improve work effect Rate reduces energy loss, long service life.

The purpose of this utility model is to provide a kind of novel verticals to be eccentrically rotated vacuum diaphragm pump, to reduce noise.

To achieve the goals above, the technical solution of the utility model is as follows：

A kind of novel vertical is eccentrically rotated vacuum diaphragm pump, including motor, pedestal, air bag group, air bag seat, valve seat and on Lid；Motor is fixed on the lower section of pedestal, setting-up eccentricity wheel in the shaft of motor, forms eccentric through-hole, shape on curved bar on eccentric wheel At central through hole, the both ends of drive shaft are connected in the eccentric through-hole of eccentric wheel and the central through hole of curved bar, and motor passes through Eccentric wheel and drive shaft are transmitted in curved bar, and the upper end of curved bar forms one group of strut from center to external radiation；Air bag seat is mounted on bottom The strut that curved bar is corresponded on seat, on air bag seat forms one group of mounting hole, opens up the first gas outlet between adjacent mounting hole；Air bag group It is mounted on air bag seat, air bag group has one group of air bag, and air bag includes entity and cyst wall, and cyst wall is bowl-shape in back-off, entity Top surface is located at the bottom of bowl of bowl-type cyst wall and is located on the plate face of air bag group, the plate face of the bowl side connection air bag group of bowl-type cyst wall Upper lateral part, it is corresponding with the first gas outlet that the plate face of air bag group opens up the second gas outlet between adjacent air bag, each installation An air bag is nested in hole, the bottom correspondence of entity is mounted on the strut of curved bar；Valve seat is closed to be mounted in air bag group, upper cover It is closed to be mounted on valve seat, corresponded between valve seat and upper cover air bag outer ring formed the inlet chamber with air inlet, be formed centrally within Breather cheek valve and unidirectional air outlet valve are installed respectively, and also shape on valve seat on the outlet chamber with venthole, air inlet and venthole It is connected at suction nozzle with inlet chamber, it is corresponding with the second gas outlet that valve seat in outlet chamber opens up third gas outlet.

The both ends of the drive shaft are spherical design, and the bottom center of air bag seat forms groove and sets for the top of drive shaft Enter.

The entity of the air bag is in back taper.

The bowl side of the cyst wall of the air bag is upwardly formed a circle positioning step, and the installation bore edges of air bag seat form a delineation Position enclosure wall and positioning step cooperate.

The plate face upper lateral part of the air bag group corresponds to air bag and forms sealing ring, and the plate face upper lateral part edge of air bag group forms close It is corresponding with the first gas outlet to open up the second gas outlet between sealing ring adjacent in sealing ring for seal ring.

There are three air bags for the air bag group, and outlet chamber is triangular in shape, and an angle of triangle outlet chamber extends outwardly, third Gas outlet is located in the outlet chamber extended, and triangle outlet chamber is centrally formed locating convex block, and unidirectional air outlet valve is also triangular in shape, Unidirectional air outlet valve be centrally formed locating slot and locating convex block cooperates, three angles of the unidirectional air outlet valve of triangle are corresponding to be covered with three On the corresponding venthole of a air bag, the press strip compressing that rib is also formed on unidirectional air outlet valve for upper cover is fixed.

The air bag group is in quadrangle there are four air bag, outlet chamber, and quadrangle outlet chamber protrudes outward on one side, and third goes out Port is located in outlet chamber outstanding, and quadrangle outlet chamber is centrally formed locating convex block, and unidirectional air outlet valve is also in quadrangle, single Cooperate to be centrally formed locating slot and the locating convex block of air outlet valve, four angles of the unidirectional air outlet valve of quadrangle are corresponding cover with four The press strip compressing that rib is also formed on the corresponding venthole of air bag, on unidirectional air outlet valve for upper cover is fixed.

The 4th gas outlet is opened up on the pedestal, the bottom surface of pedestal forms S-shaped outgassing groove and is connected to the 4th gas outlet.

The upper cover, valve seat, air bag seat and pedestal are tightened together by circlip fastening.

The 4th gas outlet is opened up in the jump-ring slot of the pedestal, the bottom surface of pedestal forms S-shaped outgassing groove and the 4th gas outlet Connection.

After adopting the above scheme, the utility model has the following advantages that：

One, the both ends of drive shaft are connected in the eccentric through-hole of eccentric wheel and the central through hole of curved bar, are taken out when imposing When pneumatically making, via design can hit the noise generated to avoid driveshaft end, on the one hand can reduce noise, on the other hand The not opposite support force effect in suction direction, maintains actually active suction, pumping effect is good, and pumping action is accelerated, energy It is lost also small.

Two, the plate face upper lateral part of the cyst wall bowl side connection air bag group of air bag, the entity of air bag may further be designed in Triconic, the gap between entity and cyst wall is big, while guaranteeing enough compression ratios, when reducing cyst wall bulging with entity it Between interference, avoid rubbing, long service life.

Three, when air-breathing, gas enters in air bag by suction nozzle, through inlet chamber, air inlet, breather cheek valve, when exhaust, gas Body is discharged through venthole, unidirectional air outlet valve, outlet chamber, third gas outlet, the second gas outlet, the first gas outlet, further, may be used also With by the 4th gas outlet and the exhaust of S-shaped outgassing groove, in this way, air-breathing and the gas circuit of exhaust lengthen, noise is further decreased when work.

The utility model is described further below in conjunction with the drawings and specific embodiments.

Detailed description of the invention

Fig. 1 is the assembled sectional view of existing vacuum pump；

Fig. 2 is the structure sectional view of air bag group；

Fig. 3 is the top perspective exploded view of the utility model embodiment one；

Fig. 4 is that the utility model embodiment one looks up stereogram exploded view；

Fig. 5 is the assembled sectional view of the utility model embodiment one；

Fig. 6 is the structure sectional view of one air bag group of the utility model embodiment；

Fig. 7 is the bottom view of pedestal；

Fig. 8 is the top perspective exploded view of the utility model embodiment two.

Label declaration

Motor 1, eccentric wheel 11, eccentric through-hole 111, curved bar 12, central through hole 121 organize strut 122, drive shaft 13；

Pedestal 2, the 4th gas outlet 21, jump-ring slot 22, S-shaped outgassing groove 23；

Air bag seat 3, mounting hole 31, the first gas outlet 32, groove 33 position enclosure wall 34；

Air bag group 4, air bag 41, entity 411, cyst wall 412, plate face 42, the second gas outlet 43, sealing ring 44, sealing ring 45, Positioning step 46；

Valve seat 5, air inlet 51, inlet chamber 52, venthole 53, outlet chamber 54, suction nozzle 55, third gas outlet 56, positioning Convex block 57；

Upper cover 6, press strip 61；

Breather cheek valve 7；

Unidirectional air outlet valve 8, locating slot 81, rib 82；

Circlip 9.

Specific embodiment

As shown in Figures 1 to 8, a kind of novel vertical that the utility model discloses is eccentrically rotated vacuum diaphragm pump, including electricity Machine 1, pedestal 2, air bag seat 3, air bag group 4, valve seat 5 and upper cover 6.

Motor 1 is fixed by screws in the lower section of pedestal 2, setting-up eccentricity wheel 11 in the shaft of motor 1, shape on eccentric wheel 11 At eccentric through-hole 111, central through hole 121 is formed on curved bar 12, the both ends of drive shaft 13 are connected to the bias of eccentric wheel 11 In the central through hole 121 of through-hole 111 and curved bar 12, motor 1 is transmitted in curved bar 12, curved bar 12 by eccentric wheel 11 and drive shaft 13 Upper end form one group of strut 122 from center to external radiation.

Air bag seat 3 is mounted on pedestal 2, and the strut 122 that curved bar 12 is corresponded on air bag seat 2 forms one group of mounting hole 31, phase The first gas outlet 32 is opened up between adjacent mounting hole 31.

Air bag group 4 is mounted on air bag seat 3, and air bag group 4 has one group of air bag 41（The number of air bag is not limited to institute in figure Show, is only illustrated by taking three air bags and four air bags as an example herein）.Air bag 41 includes entity 411 and cyst wall 412, cyst wall 412 In the bowl-shape of back-off, the top surface of entity 411 is located at the bottom of bowl of bowl-type cyst wall 412 and is located on the plate face 42 of air bag group 4, bowl 42 upper lateral part of plate face of the bowl side connection air bag group 4 of shape cyst wall 412, the plate face 42 of air bag group 4 are opened between adjacent air bag 41 If the second gas outlet 43 is corresponding with the first gas outlet 32, an air bag 41, the bottom of entity 411 are nested in each mounting hole 31 Correspondence is mounted on the strut 122 of curved bar 12.

Valve seat 5 is closed to be mounted in air bag group 3, and upper cover 6 is closed to be mounted on valve seat 5, corresponding between valve seat 5 and upper cover 6 Air bag 41 outer ring formed the inlet chamber 52 with air inlet 51, be formed centrally within the outlet chamber 54 with venthole 53, air inlet 51 With breather cheek valve 7 is installed respectively on venthole 53（It can the above umbrella valve）With unidirectional air outlet valve 8（Can be umbrella valve or it is aftermentioned its The valve of its form, as shown in the figure）, and also form suction nozzle 55 on valve seat 5 and be connected to inlet chamber 52, valve seat 5 is opened in outlet chamber 54 If third gas outlet 56 is corresponding with the second gas outlet 43.

When utility model works, starting motor 1 is rotated with movable eccentric wheel 11, and eccentric wheel 11 is transmitted in drive shaft 13, is driven Moving axis 13 drives about 12 circular swing motion of curved bar again, to keep the volume of air bag 41 flexible.When the volume of air bag 41 becomes larger, unidirectionally Air outlet valve 8 closes corresponding venthole 53, and breather cheek valve 7 then opens air inlet 51, and gas enters from the suction nozzle 55 of valve seat 5 Inlet chamber 52 enters in air bag 41 through air inlet 51 and breather cheek valve 7, and air bag 41 is evacuated at this time；The volume of air bag 41 becomes smaller When, unidirectional air outlet valve 8 opens venthole 53, and breather cheek valve 7 then closes corresponding air inlet 51, and air bag 41 is by gas by going out Stomata 53 and unidirectional air outlet valve 8 squeeze away, and gas flows into outlet chamber 54, through third gas outlet 56, the second gas outlet 43 and the The discharge of one gas outlet 32.With the rotation of motor 1, the function of vacuum pump is realized in the above-mentioned movement of reciprocation cycle.

The utility model is connected to the eccentric through-hole 111 and curved bar 12 of eccentric wheel 11 due to the both ends of drive shaft 13 In central through hole 121, when imposing pumping action, two via designs can hit making an uproar for generation to avoid 13 end of drive shaft Sound can not only reduce noise, but also the support force effect that suction direction is not opposite, maintain actually active suction, be evacuated Effect is good, and pumping action is accelerated, and energy loss is also small.Further, the both ends of drive shaft 13 are spherical design, the bottom of air bag seat 3 Face is centrally formed groove 33 and is placed in for the top of drive shaft 13, and rotates in groove 33 around geometric center lines at work, The stabilization of safety action.

The utility model is connected to 42 upper lateral part of plate face of air bag group 4, entity 411 due to 412 bowls of sides of cyst wall of air bag 41 Gap between cyst wall 412 is big, and the entity 411 of further air bag 4 can also be designed in triconic, in this way, guaranteeing foot While enough compression ratios, interference when reducing 412 bulging of cyst wall between entity 411 avoids rubbing, long service life.

In order to increase air-tightness, working efficiency is improved, 42 upper lateral part of plate face of air bag group 4 corresponds to air bag 41 and forms sealing ring 45, the 42 upper lateral part edge of plate face of air bag group 4 forms sealing ring 44, and the is opened up between sealing ring 45 adjacent in sealing ring 44 Two gas outlets 43 are corresponding with the first gas outlet 32.In order to protect and support air bag 41, the upward shape in bowl side of the cyst wall 412 of air bag 41 At a circle positioning step 46,31 edge of mounting hole of air bag seat 3 forms a delineation position enclosure wall 34 and positioning step 46 cooperates.

There are three air bags 41 for the air bag group 4 of the utility model embodiment one, and outlet chamber 54 is triangular in shape, triangle outlet chamber 54 angle extends outwardly, and third gas outlet 56 is located in the outlet chamber 54 extended, and triangle outlet chamber 54 is centrally formed Locating convex block 57, unidirectional air outlet valve 8 is also triangular in shape, and the locating slot 81 that is centrally formed of unidirectional air outlet valve 8 is matched with locating convex block 57 It closes, three angles correspondence of the unidirectional air outlet valve 8 of triangle is covered on venthole 53 corresponding with three air bags 41, unidirectional air outlet valve 8 On also formed rib 82 for upper cover 6 press strip 61 compressing fix.

For the air bag group 4 of the utility model embodiment two there are four air bag 41, outlet chamber 54 is in quadrangle, quadrangle outlet chamber 54 protrude outward on one side, and third gas outlet 56 is located in outlet chamber 54 outstanding, and being centrally formed for quadrangle outlet chamber 54 is fixed Position convex block 57, unidirectional air outlet valve 8 are also in quadrangle, and unidirectional air outlet valve 8 is centrally formed locating slot 81 and the cooperation of locating convex block 57, Four angles correspondence of the unidirectional air outlet valve 7 of quadrangle is covered on venthole 53 corresponding with four air bags 41, on unidirectional air outlet valve 8 also The press strip 61 that rib 82 is formed for upper cover 6 oppresses fixation.

In order to facilitate assembling, the upper cover 6, valve seat 5, air bag seat 3 and pedestal 2 of the utility model fasten fastening by circlip 9 Together.

When the utility model air-breathing, gas enters gas by suction nozzle 55, through inlet chamber 52, air inlet 51, breather cheek valve 7 In capsule 41, when exhaust, gas through venthole 53, unidirectional air outlet valve 7, outlet chamber 54, third gas outlet 56, the second gas outlet 43, The discharge of first gas outlet 32, further, the utility model can also open up the 4th gas outlet 21 on pedestal 2, be as shown in the figure The 4th gas outlet 21 is opened up in the jump-ring slot 22 of pedestal 2, the bottom surface of pedestal 2 forms S-shaped outgassing groove 23 and the 4th gas outlet 21 Connection, in this way, being vented by the 4th gas outlet 21 and S-shaped outgassing groove 23, the gas circuit of air-breathing and exhaust is considerably longer, noise when work It further decreases.

In addition, the utility model all opens up the first gas outlet 32 between the adjacent mounting hole 31 of air bag seat 3, in air bag group 4 The adjacent air bag 41 of plate face 42 between also all to open up the second gas outlet 43 corresponding with the first gas outlet 32, but only have in valve seat 5 It is corresponding with the second gas outlet 43 that outlet chamber 54 opens up a third gas outlet 56, in this way, in assembling, as long as third gas outlet 56 It is corresponding with any second gas outlet 43, so that it may to realize exhaust, significantly facilitate assembly.

The product form and style of above-described embodiment and schema and non-limiting the utility model, any technical field The appropriate changes or modifications that those of ordinary skill does it all should be regarded as the patent category for not departing from the utility model.

Claims (10)

1. a kind of novel vertical is eccentrically rotated vacuum diaphragm pump, it is characterised in that：Including motor, pedestal, air bag group, air bag seat, Valve seat and upper cover；Motor is fixed on the lower section of pedestal, setting-up eccentricity wheel in the shaft of motor, forms eccentric through-hole on eccentric wheel, Central through hole is formed on curved bar, the both ends of drive shaft are connected in the eccentric through-hole of eccentric wheel and the central through hole of curved bar, Motor is transmitted in curved bar by eccentric wheel and drive shaft, and the upper end of curved bar forms one group of strut from center to external radiation；Air bag seat It is mounted on the base, the strut that curved bar is corresponded on air bag seat forms one group of mounting hole, opens up the first outlet between adjacent mounting hole Mouthful；Air bag group is mounted on air bag seat, and air bag group has one group of air bag, and air bag includes entity and cyst wall, and cyst wall is in the bowl being buckled to Shape, the top surface of entity are located at the bottom of bowl of bowl-type cyst wall and are located on the plate face of air bag group, and the bowl side of bowl-type cyst wall connects gas The plate face upper lateral part of capsule group, it is corresponding with the first gas outlet that the plate face of air bag group opens up the second gas outlet between adjacent air bag, An air bag is nested in each mounting hole, the bottom correspondence of entity is mounted on the strut of curved bar；Valve seat is closed to be mounted on gas In capsule group, upper cover is closed to be mounted on valve seat, corresponded between valve seat and upper cover air bag outer ring formed the inlet chamber with air inlet, It is formed centrally within the outlet chamber with venthole, breather cheek valve and unidirectional air outlet valve are installed respectively on air inlet and venthole, and It also forms suction nozzle on valve seat to be connected to inlet chamber, it is corresponding with the second gas outlet that valve seat in outlet chamber opens up third gas outlet.

2. a kind of novel vertical as described in claim 1 is eccentrically rotated vacuum diaphragm pump, it is characterised in that：The drive shaft Both ends are spherical design, and the bottom center of air bag seat forms groove and is placed in for the top of drive shaft.

3. a kind of novel vertical as described in claim 1 is eccentrically rotated vacuum diaphragm pump, it is characterised in that：The reality of the air bag Body is in back taper.

4. a kind of novel vertical as described in claim 1 is eccentrically rotated vacuum diaphragm pump, it is characterised in that：The capsule of the air bag The bowl side of wall is upwardly formed a circle positioning step, and the installation bore edges of air bag seat form a delineation position enclosure wall and match with positioning step It closes.

5. a kind of novel vertical as described in claim 1 is eccentrically rotated vacuum diaphragm pump, it is characterised in that：The air bag group Plate face upper lateral part corresponds to air bag and forms sealing ring, and the plate face upper lateral part edge of air bag group forms sealing ring, adjacent in sealing ring Sealing ring between to open up the second gas outlet corresponding with the first gas outlet.

6. a kind of novel vertical as described in claim 1 is eccentrically rotated vacuum diaphragm pump, it is characterised in that：The air bag group has Three air bags, outlet chamber is triangular in shape, and an angle of triangle outlet chamber extends outwardly, and third gas outlet is located at the outlet extended In chamber, triangle outlet chamber is centrally formed locating convex block, and unidirectional air outlet valve is also triangular in shape, and unidirectional air outlet valve is centrally formed Locating slot and locating convex block cooperate, and three angles correspondence of the unidirectional air outlet valve of triangle is covered in venthole corresponding with three air bags On, the press strip compressing that rib is also formed on unidirectional air outlet valve for upper cover is fixed.

7. a kind of novel vertical as described in claim 1 is eccentrically rotated vacuum diaphragm pump, it is characterised in that：The air bag group has Four air bags, outlet chamber are in quadrangle, and quadrangle outlet chamber protrudes outward on one side, and third gas outlet is located at outlet chamber outstanding In, quadrangle outlet chamber is centrally formed locating convex block, and unidirectional air outlet valve is also in quadrangle, and being centrally formed for unidirectional air outlet valve is fixed Position slot and locating convex block cooperate, and four angles correspondence of the unidirectional air outlet valve of quadrangle is covered on venthole corresponding with four air bags, The press strip compressing that rib is also formed on unidirectional air outlet valve for upper cover is fixed.

8. a kind of novel vertical as described in claim 1 is eccentrically rotated vacuum diaphragm pump, it is characterised in that：It is opened on the pedestal If the 4th gas outlet, the bottom surface of pedestal forms S-shaped outgassing groove and is connected to the 4th gas outlet.

9. a kind of novel vertical as described in claim 1 is eccentrically rotated vacuum diaphragm pump, it is characterised in that：The upper cover, valve Seat, air bag seat and pedestal are tightened together by circlip fastening.

10. a kind of novel vertical as claimed in claim 9 is eccentrically rotated vacuum diaphragm pump, it is characterised in that：The pedestal The 4th gas outlet is opened up in jump-ring slot, the bottom surface of pedestal forms S-shaped outgassing groove and is connected to the 4th gas outlet.