CN216171459U - Micro mixed foam pump - Google Patents

Abstract

The utility model discloses a micro mixed foam pump, which belongs to the technical field of micro pumps and comprises a driving motor, a driving wheel, an inclined shaft, a swinging disc, a plurality of connecting rods and a plurality of sub-pumps which are sequentially arranged, wherein at least one of the plurality of sub-pumps comprises a piston pump, the piston pump comprises a piston chamber, a piston and a pump inlet and a pump outlet of the piston chamber, which are arranged along the vertical direction, and the piston is connected with the connecting rods; the plurality of sub-pumps also at least comprise a membrane bag pump, the membrane bag pump comprises a membrane bag chamber formed by at least one flexible wall, a suction port and a discharge port of the membrane bag chamber, the flexible wall is connected with the connecting rod, and the membrane bag chamber is repeatedly squeezed under the driving of the connecting rod; the mixing and foaming device also comprises a mixing and foaming cavity, and the pump outlet and the giving outlet are communicated to the mixing and foaming cavity and are pumped out from the foaming outlet. The micro mixed foam pump is compatible with the advantages of a membrane bag pump and a piston pump, can pump various fluid media, and has strong pumping pressure of a pump body; compact structure, small volume, high space utilization rate and remarkable application prospect.

Description

Micro mixed foam pump

Technical Field

The utility model relates to the technical field of micro pumps, in particular to a micro mixed foam pump.

Background

A foam pump is a device that mixes fluids such as gas and liquid with each other to generate foam. Most of the existing foam pumps suck fluids such as gas, liquid and the like through a driving device, then the fluids such as the gas, the liquid and the like are introduced into a mixing foaming cavity, and foam is generated after the fluids are fully mixed, so that the foam is output for cleaning and the like. With the improvement of living standard and the improvement of science and technology, the foam pump gradually develops towards miniaturization, and the pump body is taken as a core structure for pumping mixed fluid and is particularly important in the production and manufacture of the miniaturization development of the foam pump.

Currently, there are two main types of pump bodies commonly used on the market: one is a membrane bag pump, which mainly depends on the back-and-forth movement of an elastic membrane to change the volume of a working chamber so as to achieve the purpose of sucking and discharging fluid, has simple structure, is suitable for sucking various fluids, has good sealing performance and convenient and economic installation, but the pumping pressure of a foam pump which only adopts a membrane bag form is insufficient and is often restricted by the strength of the membrane bag; the other is a piston pump, which mainly depends on the reciprocating motion of a piston, so that the working volume of a pump cavity is changed periodically, and the purpose of sucking and discharging fluid is realized. If two pump bodies in different forms are simultaneously installed in the same foam pump, the installation process is difficult, the pump bodies are complex, the miniaturization development of the foam pump is difficult to realize, the production cost is high, and a great deal of inconvenience is caused in the actual use process.

Therefore, in order to solve the problems in the prior art, it is urgently needed to provide a micro-mixing foam pump which is compatible with the advantages of the membrane bag pump and the piston pump, has a wide application range, sufficient pumping pressure and good pumping performance.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to a micro-hybrid foam pump compatible with the advantages of two pump bodies, namely, a membrane-bag pump and a piston pump, and having a wide application range, sufficient pumping pressure and good pumping performance.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows:

a micro mixed foam pump comprises a driving motor, a driving wheel, an inclined shaft, a swinging disc, a plurality of connecting rods and a plurality of sub-pumps which are sequentially arranged, wherein the driving wheel is arranged on an output shaft of the driving motor, the lower end of the inclined shaft is arranged on the driving wheel in a manner of inclining to the rotating axis of the driving wheel, the upper end of the inclined shaft extends and intersects with the rotating axis, and the swinging disc is arranged at the upper end of the inclined shaft in a manner of rotating connection; a plurality of swing arms are arranged along the circumferential direction of the center of the swing disc, the center normal of the plane where the swing arms are located is superposed with the inclined shaft, and the swing disc is obliquely arranged; the swing arms are respectively provided with the connecting rods, and the upper ends of the connecting rods extend and are connected to the sub-pumps;

in order to ensure the working efficiency of the foam pump and reduce the production cost, a single driving motor is further arranged, the single driving motor provides power to drive the connecting rod to push the membrane bag/piston to reciprocate up and down, the suction and extrusion work of each sub-pump is efficiently controlled, and the control is accurate and stable.

The piston is connected with the connecting rod and driven by the connecting rod to reciprocate up and down;

the plurality of sub-pumps also at least comprise a membrane bag pump, the membrane bag pump comprises a membrane bag chamber formed by at least one flexible wall, a suction port and a discharge port of the membrane bag chamber, the flexible wall is connected with the connecting rod, and the membrane bag chamber is repeatedly squeezed under the driving of the connecting rod;

the mixing and foaming cavity is provided with a foaming outlet, and the fluid pumped by each sub-pump passes through the mixing and foaming cavity and then is pumped out from the foaming outlet.

The utility model is reasonably compatible with the advantages of two pump body structural forms of the membrane bag pump and the piston pump, is suitable for pumping a plurality of different fluid media by utilizing different sub-pumps, and has strong pumping pressure, good pumping performance and quite obvious application prospect.

Preferably, the connecting rod is a flexible rod capable of being elastically deformed, and the flexible rod is loosely clamped with the swing arm.

Preferably, the swing arm is formed into a plurality of bayonets circumferentially distributed on the swing disc, the plurality of bayonets are arranged corresponding to the plurality of connecting rods, and the connecting rods penetrate through the bayonets and are connected with the bayonets in an embedded manner.

Preferably, the swing arm is formed into a plurality of joint bearings which are circumferentially distributed on the swing disc, the plurality of joint bearings are arranged corresponding to the plurality of connecting rods, and the lower ends of the connecting rods are mounted with the joint bearings to form universal rotation connection.

Preferably, the piston and/or the flexible wall are also provided with a joint bearing, and the upper end of the connecting rod is mounted with the joint bearing to form universal rotation connection.

Preferably, the membrane bag chamber is composed of a bowl-shaped flexible wall and a rigid wall sealed at the position of a bowl opening, and the upper end of the connecting rod is connected to the position of a bowl bottom.

Preferably, the number of the membrane bag pumps is larger than that of the piston pumps;

it should be noted that, at present, the foam produced by many traditional foam pumps is not fine and smooth enough, and the uniformity is relatively poor, in order to avoid the defects existing in the prior art, further, the number of the membrane bag pumps is set to be larger than that of the piston pumps, and the proportion of the fluid pumped by each sub-pump is configured to control the mixing effect of the foam, so that the foam produced by the micro-mixing foam pump is mixed uniformly and fine, and the actual use experience of consumers is good.

Preferably, an inclined hole is formed in the driving wheel, a ball is arranged at the bottom of the inclined hole, and the lower end of the inclined shaft is inserted into the inclined hole and abuts against the ball; the inclined shaft is rotatably connected with the inclined hole;

in order to improve the transmission efficiency of the driving motor, furthermore, the bottom of the inclined hole is provided with a ball, the surface contact is point contact, the rotation resistance of the inclined shaft is greatly reduced, and the suction/extrusion action of each sub-pump of the foam pump is smoother.

Preferably, the cross section width dimension in the axial direction of the foam pump ranges from 22mm to 40 mm; the length size range in the axis direction is 35 mm-85 mm;

in order to adapt to the miniaturization development trend of the foam pump, the overall dimension of the micro-mixing foam pump is further limited, and the interconnection relationship of all parts in the foam pump is reasonably configured in a limited space, so that the foam pump is compact in structure, comprises a plurality of sub-pumps, and is small in size and high in space utilization rate.

Preferably, the plurality of sub-pumps are fixed on the pump shell, and the plurality of sub-pumps are distributed along the circumferential direction of the pump shell; check valves are arranged at the inlet and outlet of each sub-pump; the mixing foaming cavity is positioned in the middle of the pump shell;

on one hand, the micro mixed foam pump is quite small in size, the mutual connection relation of all parts needs to be reasonably configured in a limited space, and furthermore, a plurality of sub-pumps are distributed along the circumferential direction of the pump shell, so that the foam pump is more compact in structure while the balance of the driving force of each sub-pump is ensured;

on the other hand, in order to ensure that the fluid cannot flow back and penetrate in the working process of the micro-mixing foam pump, further, check valves are arranged at the inlet and the outlet of each sub-pump to ensure the continuous operation of the micro-mixing foam pump.

The utility model has the beneficial effects that:

(1) the advantages of two foam pump structural forms of a membrane bag pump and a piston pump are reasonably compatible, the foam pump is suitable for pumping a plurality of different fluid media by utilizing different sub-pumps, and the foam pump has strong pumping pressure and good pumping performance;

(2) the pump body of the micro mixed foam pump has a compact structure, comprises a plurality of sub-pumps, and has small volume, high space utilization rate and obvious application prospect;

(3) the single driving motor provides power to drive the connecting rod to push the flexible wall/piston, so that the suction and extrusion work of each sub-pump is efficiently controlled, the control is accurate and stable, the energy consumption is low, and the efficiency is high;

(4) the mixing proportion of gas and liquid is controlled by configuring the volume proportion of the membrane bag chamber and the piston chamber, so that the foam produced by the micro-mixing foam pump is uniformly mixed, fine and smooth and has good effect.

Drawings

For ease of illustration, the utility model is described in detail by the following detailed description and the accompanying drawings.

FIG. 1 is a schematic structural view of embodiment 1 of the present invention;

fig. 2 is an exploded view of embodiment 1 of the present invention;

FIG. 3 is a schematic view showing the connection of each sub-pump to the wobble plate in embodiment 1 of the present invention;

FIG. 4 is a schematic view showing the connection of the capsule chamber, the piston chamber and the mixing and frothing chamber of example 1 of the present invention;

FIG. 5 is a bottom view of a pump cap of example 1 of the present invention;

fig. 6 is a schematic structural view of a driving assembly according to embodiment 1 of the present invention;

fig. 7 is an air intake operation schematic diagram of embodiment 1 of the present invention;

FIG. 8 is a schematic diagram of the liquid feed operation of example 1 of the present invention;

fig. 9 is a schematic diagram of a gas-liquid mixing operation in embodiment 1 of the present invention.

Reference numerals:

1. a pump cover; c1, a foam outlet; r1, pump air port; r2, pump port;

2. a pump housing; 21. a connecting rod; 22. a top seat; 23. a base; 231. a membrane sac chamber; 232. a piston chamber; 231a, a suction port; 231b, a supply port; 231c, gas buffer zone; 232a, pump inlet; 232b, pump outlet; 232c, liquid buffer area; 24. a flexible wall; 25. a piston; 26. a non-return valve; 261. a first check valve; 262. a second check valve; 263. a third check valve; 27. a fourth check valve; 28. a bump; q1, subpump; h1, mixing and foaming cavity; h2, a through port;

3. a drive assembly; 31. a drive motor; 32. a drive wheel; 33. a ball bearing; 34. a skew axis; 35. a wobble plate; 351. swinging arms; 36. a base; x1, oblique holes; k1, bayonet;

4. a bolt;

5. a gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1 to 9, in this embodiment, a micro-hybrid foam pump includes a pump housing 2, a pump cover 1 and a driving assembly 3, specifically, the driving assembly 3 includes a driving motor 31, a driving wheel 32, an inclined shaft 34 and a swinging disc 35, which are sequentially arranged, the driving wheel 32 is arranged on an output shaft of the driving motor 31, a lower end of the inclined shaft 34 is arranged on the driving wheel 32 in a manner of inclining to a rotation axis of the driving wheel 32, an upper end thereof extends and crosses the rotation axis, and the swinging disc 35 is rotatably mounted at the upper end thereof; a plurality of swing arms 351 are arranged along the circumferential direction of the center of the swing disc 35, the center normal of the plane where the plurality of swing arms 351 are positioned is overlapped with the inclined shaft 34, and the swing disc 35 is obliquely arranged;

in this embodiment, the pump case 2 is sequentially provided with, from top to bottom, a top base 22, a base 23 and a base 36, the pump cover 1 covers the upper portion of the top base 22, a gasket 5 for sealing is further provided between the pump cover 1 and the top base 22, the driving assembly 3 is fixedly connected with the base 36, the base 36 of the pump case 2 is provided with a plurality of threaded holes, in this embodiment, the number of the threaded holes is 3, correspondingly, the base 23, the top base 22 and the pump cover 1 of the pump case 2 are provided with through holes equivalent to the number of the threaded holes, and the bolts 4 sequentially pass through the through holes on the pump cover 1, the top base 22 and the base 23 and are connected and fastened with the threaded holes on the base 36; a plurality of connecting rods 21 and a plurality of sub-pumps Q1 are further arranged in the pump shell 2, the connecting rods 21 are respectively mounted on the swing arms 351, and the upper ends of the connecting rods 21 are connected to the sub-pumps Q1 in an extending mode;

in this embodiment, the driving wheel 32 is provided with an inclined hole X1, the bottom of the inclined hole X1 is provided with a ball 33, and the lower end of the inclined shaft 34 is inserted into the inclined hole X1 to abut against the ball 33; the inclined shaft 34 is rotatably connected with an inclined hole X1;

in order to improve the transmission efficiency of the driving motor 31, the balls 33 are further arranged at the bottom of the inclined hole X1, and the surface contact is point contact, so that the rotation resistance of the inclined shaft 34 is greatly reduced, and the suction/extrusion action of each sub-pump Q1 of the foam pump is smoother.

The plurality of sub-pumps Q1 at least comprise a piston pump, the piston pump comprises a piston chamber 232 arranged along the up-down direction, a piston 25, and a pump inlet 232a and a pump outlet 232b of the piston chamber 232, the piston 25 is connected with the connecting rod 21, and the piston pump reciprocates up and down under the driving of the connecting rod 21;

a plurality of rubber rings are arranged between the side part of the piston 25 and the inner wall of the piston chamber 232, and the connecting rod 21 drives the piston 25 to perform lifting reciprocating motion; in order to avoid the leakage of the fluid medium from the gap between the piston 25 and the piston chamber 232 during the lifting and reciprocating movement of the piston 25, furthermore, a plurality of rubber rings are arranged between the side part of the piston 25 and the inner wall of the piston chamber 232, so that the piston 25 can be ensured to smoothly lift and reciprocate while the tightness of the piston chamber 232 is ensured, and the normal working process of the foam pump is ensured.

The plurality of sub-pumps Q1 further comprise at least one capsule pump, the capsule pump comprises a capsule chamber 231 formed by at least one flexible wall 24, and a suction port 231a and a discharge port 231b of the capsule chamber 231, the flexible wall 24 is connected with the connecting rod 21, and the capsule chamber 231 is repeatedly pressed under the driving of the connecting rod 21;

in this embodiment, in order to ensure the working efficiency of the foam pump and reduce the production cost, further, a single driving motor 31 is provided, the single driving motor 31 provides power to drive the connecting rod 21 to push the flexible wall 24/the piston 25 to reciprocate up and down, so as to efficiently control the sucking and extruding operations of each sub-pump Q1, and the control is accurate and stable.

In this embodiment, the number of the membrane bladder pumps is larger than that of the piston pumps; specifically, the number of the membrane bag pumps is 2, and the number of the piston pumps is 1, in the specific application of this embodiment, the membrane bag chamber 231 formed by the flexible wall 24 has good sealing performance and is convenient and economical to install, and in this embodiment, the membrane bag chamber is preferably used for sucking gas fluid; the pumping-out pressure of the piston chamber 232 formed by the piston 25 is enough, the pumping-out performance is good, and the piston chamber is preferably used for pumping liquid fluid in the embodiment; in a preferred embodiment, the inner diameter width dimension of the capsule chamber 231 is greater than the inner diameter width dimension of the piston chamber 232;

it should be noted that, at present, the foam produced by many traditional foam pumps is not fine and smooth enough, and the uniformity is poor, in order to avoid the disadvantages existing in the prior art, further, the number of the membrane bag pumps is set to be larger than that of the piston pumps, and the proportion of the fluid pumped by each sub-pump Q1 is configured to control the mixing effect of the foam, so that the foam produced by the micro-mixing foam pump is mixed uniformly and finely, and the actual use experience of consumers is good.

In this embodiment, the connecting rod 21 is a flexible rod capable of being elastically deformed, and the flexible rod is loosely clamped with the swing arm 351.

In a preferred embodiment, the swing arm 351 is formed as a plurality of bayonets K1 distributed on the swing disc 35 in the circumferential direction, a plurality of bayonets K1 are arranged corresponding to the plurality of connecting rods 21, and the connecting rods 21 pass through the bayonets K1 and are connected with the bayonets K1 in a snap fit manner.

More specifically, the membrane chamber 231 is composed of a bowl-shaped flexible wall 24 and a rigid wall sealed at the bowl opening, and the upper end of the connecting rod 21 is connected to the bowl bottom.

The mixing and frothing device further comprises a mixing and frothing cavity H1, the pump outlet 232b and the supply outlet 231b are communicated to the mixing and frothing cavity H1, the mixing and frothing cavity H1 is provided with a frothing outlet C1, and fluid pumped out by each sub-pump Q1 passes through the mixing and frothing cavity H1 and is pumped out from the frothing outlet C1.

In the embodiment, the foam pump is reasonably compatible with the advantages of two pump body structural forms of the membrane bag pump and the piston pump, is suitable for pumping various different fluid media by utilizing different sub-pumps Q1, and has the advantages of strong pumping pressure, good pumping performance and quite remarkable application prospect.

In a preferred embodiment, the cross-sectional width dimension in the axial direction of the foam pump ranges from 22mm to 40 mm; the length size range in the axis direction is 35 mm-85 mm;

in order to adapt to the miniaturization development trend of the foam pump, the overall dimension of the micro-mixing foam pump is further limited, and the interconnection relationship of all parts in the foam pump is reasonably configured in a limited space, so that the foam pump is compact in structure and comprises a plurality of sub-pumps Q1, the size is small, and the space utilization rate is high.

In the present embodiment, the plurality of sub-pumps Q1 are fixed to the pump housing 2, and the plurality of sub-pumps Q1 are distributed along the circumferential direction of the pump housing 2; the inlet and outlet of each sub-pump Q1 are provided with check valves 26; the mixing frothing chamber H1 is positioned in the middle of the pump shell 2;

in this embodiment, each sub-pump Q1 has a check valve 26 at its inlet and outlet, specifically, the sub-pumps Q1 include a first check valve 261 and a second check valve 262 correspondingly covering the suction port 231a of the two membrane chamber 231, a third check valve 263 correspondingly covering the pump inlet 232a of the piston chamber 232, and a fourth check valve 27 disposed in the mixing and frothing chamber H1;

in the present embodiment, an air buffer 231c is further disposed between the pump air inlet R1 and the two intake ports 231a for temporarily buffering the air pumped in through the pump air inlet R1 and not entering the membrane bag chamber 231; similarly, a liquid buffer area 232c is also arranged between the pump liquid port R2 and the pump inlet 232a and is used for temporarily buffering liquid which is pumped in through the pump liquid port R2 and does not enter the piston chamber 232; specifically, the air buffer 231c and the liquid buffer 232c are disposed in a closed cavity formed by the pump cover 1 and the top seat 22, and the air buffer 231c and the liquid buffer 232c are separated in pairs and are not communicated with each other.

In this embodiment, the bottom of the mixing and frothing cavity H1 is provided with an outlet of each sub-pump Q1, specifically comprising the outlet 231b of two membrane bag chambers 231 and the outlet 232b of one piston chamber 232, the bottom of the mixing and frothing cavity H1 is further provided with a bump 28, the bump 28 is located at the center of the bottom, the outlets of each sub-pump Q1 are uniformly distributed in the circumferential direction with the bump 28 as the center, the bump 28 is triangular prism-shaped, and the side wall of the mixing and frothing cavity H1 is provided with a through hole H2 communicated to the froth outlet C1; a fourth check valve 27 is arranged at the position where the outlet of each sub-pump Q1 is communicated with the mixing and frothing cavity H1; the fourth check valve 27 is shaped like a round cake, the middle part of the fourth check valve 27 protrudes upwards, a concave cavity is formed at the bottom of the fourth check valve 27 and corresponds to the bump 28, the concave cavity of the fourth check valve 27 and the bump 28 are clamped and fixed with each other, when fluid pumped by each pump chamber enters the mixed foaming cavity H1, the peripheral edge of the fourth check valve 27 floats upwards, the fourth check valve 27 is in an open state, the fluid flows into the mixed foaming cavity H1 through the outlet of each sub-pump Q1, and when the peripheral edge of the fourth check valve 27 resets downwards, the fourth check valve 27 is in a closed state.

On one hand, the micro mixed foam pump is quite small in size, the mutual connection relation of all parts needs to be reasonably configured in a limited space, and furthermore, the plurality of sub-pumps Q1 are distributed along the circumferential direction of the pump shell 2, so that the foam pump is more compact in structure while the driving force of each sub-pump Q1 is balanced;

on the other hand, in order to ensure that the fluid does not flow backwards and penetrate during the operation of the micro-mixing foam pump, a check valve 26 is further provided at the inlet and outlet of each sub-pump Q1 to ensure the continuous operation of the micro-mixing foam pump.

Through the scheme of the utility model, in specific application, when the micro mixed foam pump works, the micro mixed foam pump can be mainly divided into the following three parts:

(1) gas pumping section

As shown in fig. 7, when the micro-hybrid foam pump works, the output end of the driver provides power for the rotation of the driving wheel 32, the inclined shaft 34 on the driving wheel 32 drives the swinging disc 35 to swing, the connecting rod 21 embedded with the swinging disc 35 drives the flexible wall 24 to move up and down, and the membrane bag chamber 231 is repeatedly squeezed to generate reciprocating deformation motion. When the connecting rod 21 descends, the membrane bag chamber 231 is depressurized, and the gas enters the gas buffer zone 231c through the pumping port R1, at this time, the first check valve 261/the second check valve 262 is opened, the gas enters the membrane bag chamber 231 through the drawing port 231a, when the connecting rod 21 ascends, the membrane bag chamber 231 is pressed, the first check valve 261/the second check valve 262 is closed, the fourth check valve 27 located in the mixing and frothing chamber H1 is opened, and the gas is pumped into the mixing and frothing chamber H1 through the supply port 231 b.

(2) Liquid pumping part

As shown in fig. 8, when the micro-hybrid foam pump works, the output end of the driver provides power for the rotation of the driving wheel 32, the inclined shaft 34 on the driving wheel 32 drives the swinging disc 35 to swing, and the connecting rod 21 embedded with the swinging disc 35 drives the piston 25 to move up and down to generate reciprocating motion. When the connecting rod 21 moves downwards, negative pressure is formed in the piston chamber 232, liquid enters the liquid buffer area 232c through the pump liquid port R2, at this time, the third check valve 263 is in an open state, liquid enters the piston chamber 232 through the pump inlet 232a, when the connecting rod 21 moves upwards, the piston chamber 232 is pressed, the third check valve 263 is closed, the fourth check valve 27 in the mixing and frothing chamber H1 is opened, and liquid is pumped into the mixing and frothing chamber H1 through the pump outlet 232 b.

(3) Gas-liquid mixing foam part

As shown in fig. 9, when the micro-hybrid foam pump works, the output end of the driver provides power for the rotation of the driving wheel 32, the inclined shaft 34 on the driving wheel 32 drives the swinging disc 35 to swing, and the connecting rod 21 embedded with the swinging disc 35 drives the flexible wall 24/piston 25 to move up and down to generate reciprocating motion; the output shaft of the driving motor 31 rotates for one circle, each sub-pump Q1 simultaneously realizes one suction and extrusion working cycle, the single driving motor 31 provides power to drive the connecting rod 21 to push the flexible wall 24/piston 25, and the suction and extrusion work of each sub-pump Q1 is efficiently controlled; the gas and the liquid pumped into the mixing and foaming cavity H1 are fully mixed and then transmitted through an upper port H2 arranged on the pump cover 1, and finally, foam is output through a foam outlet C1 for cleaning and the like;

the mixing ratio of gas and liquid is controlled by configuring the volume ratio of the membrane bag chamber 231 and the piston chamber 232, so that the foam produced by the micro-mixing foam pump is uniformly mixed, fine and smooth and has better effect.

Example 2

In one embodiment of the present invention, the main technical solution of this embodiment and embodiment 1, and features that are not explained in this embodiment adopt the explanations in embodiment 1, and are not described herein again. This example differs from example 1 in that:

in this embodiment, the swing arm 351 is formed as a plurality of joint bearings (not shown) circumferentially distributed on the swing plate 35, the plurality of joint bearings are disposed corresponding to the plurality of connecting rods 21, and the lower ends of the connecting rods 21 are mounted on the joint bearings to form a universal rotation connection.

In particular, the piston 25 and/or the flexible wall 24 are also provided with a knuckle bearing, and the upper end of the connecting rod 21 is mounted with the knuckle bearing to form a universal rotation connection.

When the micro-mixing foam pump works, the output end of the driving motor 31 provides power for the rotation of the driving wheel 32, the inclined shaft 34 on the driving wheel 32 drives the swinging disc 35 to swing, and the connecting rod 21 rotationally connected with the swinging disc 35 drives the flexible wall 24/piston 25 to move up and down in respective pump chambers to generate reciprocating motion; the output end of the driving motor 31 rotates for one circle, each sub-pump Q1 realizes one suction and extrusion working cycle at the same time, the single driving motor 31 provides power to drive the connecting rod 21 to push the elastic flexible wall 24/piston 25, and the suction and extrusion work of each sub-pump Q1 is efficiently controlled; the gas and the liquid pumped into the mixing and foaming cavity H1 are fully mixed and then transmitted through an upper port H2 arranged on the pump cover 1, and finally, foam is output through a foam outlet C1 for cleaning and the like;

the mixing ratio of gas and liquid is controlled by configuring the volume ratio of the membrane bag chamber 231 and the piston chamber 232, so that the foam produced by the micro-mixing foam pump is uniformly mixed, fine and smooth and has better effect.

Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. In addition, although specific terms are used in the specification, the terms are used for convenience of description and do not limit the utility model in any way.

Claims (10)

1. A micro mixed foam pump comprises a driving motor, a driving wheel, an inclined shaft, a swinging disc, a plurality of connecting rods and a plurality of sub-pumps which are sequentially arranged, wherein the driving wheel is arranged on an output shaft of the driving motor, the lower end of the inclined shaft is arranged on the driving wheel in a manner of inclining to the rotating axis of the driving wheel, the upper end of the inclined shaft extends and intersects with the rotating axis, and the swinging disc is arranged at the upper end of the inclined shaft in a manner of rotating connection; a plurality of swing arms are arranged along the circumferential direction of the center of the swing disc, the center normal of the plane where the swing arms are located is superposed with the inclined shaft, and the swing disc is obliquely arranged; the swing arms are respectively provided with the connecting rods, and the upper ends of the connecting rods extend and are connected to the sub-pumps; it is characterized in that the preparation method is characterized in that,

the piston is connected with the connecting rod and driven by the connecting rod to reciprocate up and down;

the plurality of sub-pumps also at least comprise a membrane bag pump, the membrane bag pump comprises a membrane bag chamber formed by at least one flexible wall, a suction port and a discharge port of the membrane bag chamber, the flexible wall is connected with the connecting rod, and the membrane bag chamber is repeatedly squeezed under the driving of the connecting rod;

the mixing and foaming cavity is provided with a foaming outlet, and the fluid pumped by each sub-pump passes through the mixing and foaming cavity and then is pumped out from the foaming outlet.

2. The micro hybrid foam pump of claim 1, wherein the linkage is a flexible rod that is elastically deformable and is loosely snap-fitted to the swing arm.

3. The micro-mixer foam pump of claim 1 or 2, wherein the swing arm is formed as a plurality of bayonets circumferentially distributed on the swing disc, the plurality of bayonets being disposed corresponding to the plurality of connection rods, and the connection rods passing through the bayonets and being snap-fit connected with the bayonets.

4. The micro hybrid foam pump according to claim 1, wherein the swing arm is formed as a plurality of joint bearings circumferentially distributed on the swing disc, the plurality of joint bearings are disposed corresponding to the plurality of connecting rods, and the lower ends of the connecting rods are mounted with the joint bearings to form a universal rotational connection.

5. The micro hybrid foam pump of claim 4, wherein the piston and/or the flexible wall is also provided with a knuckle bearing, and the upper end of the connecting rod is mounted in universal rotational connection with the knuckle bearing.

6. The micro hybrid foam pump of claim 1, wherein the membrane chamber is formed by a bowl-shaped flexible wall and a rigid wall sealed at the bowl opening, the upper end of the rod being connected to the bowl bottom.

7. The micro hybrid foam pump of claim 1, wherein the number of membrane bladder pumps is greater than the number of piston pumps.

8. The micro hybrid foam pump according to claim 1, wherein the driving wheel is provided with an inclined hole, a ball is provided at the bottom of the inclined hole, and the lower end of the inclined shaft is inserted into the inclined hole and abuts against the ball; the inclined shaft is rotatably connected with the inclined hole.

9. The micro hybrid foam pump of claim 1, wherein the foam pump has a cross-sectional width dimension in the axial direction of the foam pump ranging from 22mm to 40 mm; the length dimension in the axial direction is in the range of 35mm to 85 mm.

10. The micro hybrid foam pump of claim 1, wherein the plurality of sub-pumps are fixed to the pump housing, the plurality of sub-pumps being distributed circumferentially along the pump housing; check valves are arranged at the inlet and outlet of each sub-pump; the mixing foaming cavity is positioned in the middle of the pump shell.

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