Gas-liquid mixing pump

Abstract

The application relates to the technical field of fluid conveying equipment, and discloses a gas-liquid mixing pump which comprises a pump cavity main part, a bottom driving part and a pump head upper cover part, the pump cavity main part comprises a pump cavity upper baffle, a pump cavity shell, a pump body lower cover, a side upper interface seat, a side lower interface seat, a planetary transmission mechanism, an eccentric driving mechanism, a diaphragm assembly and a fluid conveying assembly; four independent pump cavities are arranged on the pump cavity upper baffle; and a positioning boss which is embedded with the shell positioning groove body is arranged on the sidewall of the pump body lower cover. The gas-liquid mixing pump adopts a composite structure of a multi-chamber diaphragm pump and a planetary gear rolling flexible pump pipe, replaces a traditional leather cup type design, improves the structural fatigue resistance and sealing reliability, avoids problems such as long-term operation wear, air leakage and liquid mixing, and realizes effective gas-liquid mixing, bubble refinement and uniformity through the cooperation of diaphragm reciprocating deformation and flexible pump pipe shearing.

Description

Technical Field

[0001] This invention relates to the field of fluid transport equipment technology, specifically to a gas-liquid mixing pump. Background Technology

[0002] Gas-liquid mixing pumps are widely used in water treatment, cleaning atomization, industrial circulation and other fields to achieve uniform mixing and transportation of gas and liquid. Most existing gas-liquid mixing pumps adopt an eccentrically driven reciprocating cup structure, such as the gas-liquid mixing pump disclosed in the prior art document (CN109847604B). Its core solution is: the eccentric bushing driven by the motor drives the cup assembly to reciprocate, and with the help of a multi-chamber valve seat, check valve and one-way valve, water intake, drainage and gas-liquid mixing are achieved.

[0003] This type of traditional structure has a core defect in practical applications: it relies on the reciprocating oscillation of the diaphragm cup to pump liquid. Under long-term operation, the diaphragm cup is prone to fatigue wear, aging and deformation, which not only greatly shortens the service life of the equipment, but also causes liquid cross-contamination and air leakage due to the failure of the diaphragm cup seal, resulting in pump flow rate reduction and loss of control of gas-liquid mixing ratio (i.e. there are obvious pulses in the fluid output, insufficient uniformity of gas-liquid mixing, and large bubble particles), and cannot meet the long-term stable needs of gas-liquid transportation.

[0004] Therefore, the industry urgently needs a gas-liquid mixing pump structure that is simpler in structure, has a longer lifespan, more reliable sealing, and more stable output to solve the above-mentioned problems of existing technologies. Summary of the Invention

[0005] The purpose of this invention is to provide a gas-liquid mixing pump to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a gas-liquid mixing pump, comprising a pump chamber main body, a bottom drive part, and a pump head cover part. The pump chamber main body includes an upper pump chamber partition, a pump chamber housing, a lower pump body cover, an upper side interface seat, a lower side interface seat, a planetary transmission mechanism, an eccentric drive mechanism, a diaphragm assembly, and a fluid delivery assembly. The upper pump chamber partition has four independent pump chambers. The lower pump body cover has a positioning boss installed on its side wall that fits into the positioning groove of the housing. The upper side interface seat is integrally formed on the other side wall of the pump chamber housing, and the lower side interface seat integrally formed with the lower pump body cover is fastened with screws. The bottom drive section includes a motor body, motor electrical pins, and a motor rotating shaft; the upper end of the motor body is fixedly connected to the lower cover of the pump body, the motor electrical pins are located at the bottom of the motor body for connecting to an external power source, and the motor rotating shaft extends from the upper end of the motor body and is connected to the eccentric drive mechanism inside the pump chamber body. The pump head cover includes a pump head cover, a connector cover, a gas discharge connector, a fixing assembly hole, a valve seat flow channel plate, a return spring, an exhaust control valve core, and a manifold. The connector cover is assembled on the top of the pump head cover. The gas discharge connector connects the manifold to the outside. The fixing assembly hole is opened through the periphery of the pump head cover to lock the pump head cover and the valve seat flow channel plate. The return spring is fixedly connected inside the connector cover, and the lower end of the return spring is fixedly connected to the exhaust control valve core.

[0007] Preferably, the upper partition of the pump cavity has mounting holes for sealing assembly with the positioning posts distributed on the pump cavity housing; the top of the pump cavity housing has positioning posts, and the side wall of the pump cavity housing has a housing positioning groove.

[0008] Preferably, the valve seat flow channel plate is fixedly installed on the pump head cover; the valve seat flow channel plate has four umbrella valve mounting slots, and an umbrella valve is installed in the umbrella valve mounting slot.

[0009] Preferably, the exhaust control valve core is located in the middle of the manifold, which is a hollow chamber inside the pump head cover, used to collect the gas delivered by each pump chamber and discharge it to the outside through the gas discharge connector.

[0010] Preferably, the planetary transmission mechanism includes a sun gear, a planetary gear set, and a planetary gear mounting bracket; the central hole of the sun gear is fixedly fitted onto the rotating shaft of the motor; the planetary gear mounting bracket includes an upper mounting plate, a lower positioning plate, and a central support column; the upper mounting plate has three planetary gear mounting shafts evenly distributed around its circumference for positioning and supporting each planetary gear of the planetary gear set; the lower positioning plate is fixedly connected to the lower cover of the pump body in the main body of the pump cavity; the bracket has a clearance hole for the sun gear at its center, allowing the sun gear to pass through and mesh with the planetary gear set for transmission.

[0011] Preferably, the eccentric drive mechanism includes an eccentric wheel and a connecting shaft; the central hole of the eccentric wheel is coaxially and fixedly connected to the rotating shaft of the motor, the lower end of the connecting shaft is fixedly installed at the eccentric position of the eccentric wheel, and its upper end is rigidly connected to the diaphragm support to transmit eccentric motion.

[0012] Preferably, the diaphragm assembly includes an elastic pump diaphragm and a diaphragm support; the upper edge of the elastic pump diaphragm is fixed in an independent pump chamber of the upper partition of the pump chamber, and the lower edge is fixed on the diaphragm support; the bottom center of the diaphragm support is connected to the upper end of the connecting shaft.

[0013] Preferably, the fluid delivery assembly includes a flexible pump tube, a gas-liquid discharge connector, a gas inlet connector, and a liquid inlet connector; the flexible pump tube is annularly wound around the outer wall of the planetary gear mounting shaft of the planetary gear mounting bracket; the gas-liquid discharge connector is sealed and connected to the outlet end of the flexible pump tube; both the gas inlet connector and the liquid inlet connector are sealed and connected through the inlet end of the flexible pump tube; and the gas inlet connector is connected to the gas discharge connector through a pump tube connecting connector.

[0014] This invention provides a gas-liquid mixing pump. It has the following beneficial effects: (1) The present invention adopts a composite structure of multi-chamber diaphragm pumping combined with planetary gear rolling flexible pump tube, which replaces the traditional cup design, improves the fatigue resistance and sealing reliability of the structure, and avoids problems such as wear, air leakage and liquid cross-contamination during long-term operation; at the same time, through the synergistic effect of diaphragm reciprocating deformation and flexible pump tube shearing action, gas-liquid mixing is achieved, and the bubbles are refined and uniform.

[0015] (2) The present invention achieves quick assembly and disassembly through the positioning column, positioning groove fitting and screw fastening, which makes maintenance convenient and cost-effective; the gas discharged from the pump chamber can be introduced into the flexible pump tube to participate in secondary mixing, improving gas utilization and mixing uniformity, and the unidirectional conduction structure prevents fluid backflow and ensures long-term stable operation of the pump body. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall exploded structure of the present invention; Figure 3 This is a schematic diagram of the exploded structure of the main pump chamber of the present invention; Figure 4 This is a schematic diagram of the external interface structure of the pump body of the present invention; Figure 5 This is a schematic diagram of the exploded structure of the pump head cover of the present invention; Figure 6 This is a cross-sectional view of the pump head cover portion of the present invention; Figure 7 This is a schematic diagram of the assembly structure of the upper baffle and eccentric wheel in the pump cavity of the present invention; Figure 8 This is an exploded view of the diaphragm assembly and eccentric drive mechanism of the present invention. Figure 9 This is a schematic diagram of the assembly structure of the planetary transmission mechanism and fluid transport component of the present invention; Figure 10 This is a schematic diagram of the planetary transmission mechanism and fluid transport assembly of the present invention from another perspective.

[0017] In the diagram: 1-Pump chamber main body, 2-Bottom drive section, 3-Pump head cover, 11-Pump chamber upper partition, 12-Mounting hole, 13-Pump chamber housing, 14-Positioning post, 15-Side upper interface seat, 16-Housing positioning groove, 17-Pump body lower cover, 18-Positioning boss, 19-Side lower interface seat, 21-Motor body, 22-Motor electrical pins, 23-Motor rotating shaft, 31-Pump head cover, 32-Connector cover, 33-Gas discharge connector, 3 4-Fixed mounting hole, 35-Valve seat flow channel plate, 36-Umbrella valve, 37-Return spring, 38-Exhaust control valve core, 39-Manifold, 41-Sun gear, 42-Planetary gear set, 43-Planetary gear mounting bracket, 431-Planetary gear mounting shaft, 44-Flexible pump tube, 45-Gas-liquid discharge connector, 46-Gas inlet connector, 47-Liquid inlet connector, 48-Eccentric wheel, 49-Connecting shaft, 410-Diaphragm support, 411-Elastic pump diaphragm. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0020] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] like Figures 1 to 10 As shown, the present invention provides a gas-liquid mixing pump, including a pump chamber main body 1, a bottom drive part 2, and a pump head cover part 3; the pump chamber main body 1, the bottom drive part 2, and the pump head cover part 3 are assembled and fixed from bottom to top, forming a vertical gas-liquid mixing pump.

[0022] like Figure 1 , Figure 3 As shown, the main body 1 of the pump chamber includes an upper partition 11, a pump chamber housing 13, a lower cover 17, an upper side interface seat 15, a lower side interface seat 19, a planetary transmission mechanism, an eccentric drive mechanism, a diaphragm assembly, and a fluid delivery assembly. The upper partition 11 has four independent pump chambers, employing a multi-chamber parallel structure. The upper partition 11 has mounting holes 12 for sealing assembly with positioning posts 14 distributed on the pump chamber housing 13, achieving rapid positioning and reliable sealing to prevent air leakage between chambers. Positioning posts 14 are distributed on the top of the pump chamber housing 13, and housing positioning grooves 16 are provided on the side walls of the pump chamber housing 13 for facilitating the positioning of components. Circumferential limiting ensures assembly coaxiality; a positioning boss 18 is installed on the side wall of the pump body lower cover 17, which fits into the housing positioning groove 16, realizing the positioning and stable connection between the pump chamber housing 13 and the pump body lower cover 17, and preventing the parts from loosening or shifting during operation; the side upper interface seat 15 is integrally formed on the other side wall of the pump chamber housing 13, and the side lower interface seat 19 integrally formed with the side wall of the pump body lower cover 17 is fastened with screws to ensure the interface installation strength and sealing performance, and at the same time facilitate the installation and fixing of external pipelines; the eccentric drive mechanism is installed inside the pump chamber housing 13 and is connected to the motor rotating shaft 23 for transmission, and is used to drive the diaphragm to reciprocate to realize the pumping action.

[0023] like Figure 2 As shown, the bottom drive part 2 includes a motor body 21, motor electrical pins 22, and a motor rotating shaft 23. The upper end of the motor body 21 is fixedly connected to the pump body lower cover 17, and the motor body 21 provides stable and continuous rotational power for the entire pump body. The motor electrical pins 22 are located at the bottom of the motor body 21 and are used to connect to an external power source. The motor rotating shaft 23 extends from the upper end of the motor body 21 and is connected to the eccentric drive mechanism inside the pump chamber body part 1 to convert the rotational motion of the motor into the reciprocating pumping action of the diaphragm, thereby achieving smooth power transmission.

[0024] like Figure 4 , Figure 5 , Figure 6As shown, the pump head cover 3 includes a pump head cover 31, a connector cover 32, a gas discharge connector 33, a fixing assembly hole 34, a valve seat flow channel plate 35, a parasol valve 36, a return spring 37, an exhaust control valve core 38, and a manifold 39. The connector cover 32 is mounted on the top of the pump head cover 31 to seal the interface, improve overall sealing, and prevent gas leakage and external impurities from entering the pump body. The gas discharge connector 33 connects the manifold 39 to the outside, serving as the final gas output port for easy connection to external pipelines. The fixing assembly hole 34 is formed around the pump head cover 31 to lock the pump head cover 31 and the valve seat flow channel plate 35 together, ensuring a secure assembly and accurate positioning. The valve seat flow channel plate 35 is fixedly installed on the pump head cover 31, providing an installation positioning reference and gas flow channel for the parasol valve 36, resulting in a regular gas flow and low flow resistance. The valve seat flow channel plate 35 has various components distributed on it. Four umbrella valve mounting slots are provided, and umbrella valve 36 is installed in the umbrella valve mounting slots, corresponding to the multi-chamber structure, so as to realize independent unidirectional control of each chamber; the return spring 37 is fixedly connected to the connector cover 32, and the lower end of the return spring 37 is fixedly connected to the exhaust control valve core 38, providing a stable return force to ensure that the one-way valve opens and closes sensitively and responds quickly; the exhaust control valve core 38 is set at the middle position of the manifold 39 to control the opening and closing of the manifold and prevent backflow; the umbrella valve 36, the return spring 37 and the exhaust control valve core 38 are assembled and cooperated in sequence to form a unidirectional conduction structure, which only allows the gas inside the pump chamber to flow upward, which can effectively prevent gas backflow; the manifold 39 is a hollow chamber inside the pump head cover 31, which is used to collect the gas delivered by each pump chamber, so that the gas output from the multi-chamber is evenly mixed and the pressure is balanced, and then discharged outward through the gas discharge connector 33, reducing output pulsation and improving the uniformity of subsequent gas-liquid mixing.

[0025] like Figures 7 to 10 As shown, the planetary transmission mechanism includes a sun gear 41, a planetary gear set 42, and a planetary gear mounting bracket 43. The central hole of the sun gear 41 is fixedly fitted onto the motor rotating shaft 23, rotating synchronously with the motor shaft to transmit power as the driving component. The planetary gear mounting bracket 43 is a rigid base integrally injection molded, including an upper mounting plate, a lower positioning plate, and a central support column. Three planetary gear mounting shafts 431 are evenly distributed circumferentially on the upper mounting plate to position and support each planetary gear of the planetary gear set 42, allowing it to rotate around its own axis and revolve with the bracket to achieve stable meshing transmission. The lower positioning plate is fixedly connected to the pump body lower cover 17 of the pump chamber main body 1, providing axial and radial positioning support for the entire transmission mechanism. A clearance hole for the sun gear 41 is opened in the center of the bracket, allowing the sun gear 41 to pass through and mesh with the planetary gear set 42 for transmission. The planetary gear set revolves and compresses the flexible pump tube, which can form a continuous and uniform rolling and pushing of the fluid in the tube, enhance the gas-liquid shear mixing effect, make the bubbles smaller and more evenly distributed, and improve the gas-liquid mixing quality.

[0026] like Figures 7 to 10 As shown, the eccentric drive mechanism includes an eccentric wheel 48 and a connecting shaft 49. The central hole of the eccentric wheel 48 is coaxially and fixedly connected to the motor rotating shaft 23, rotating synchronously with the motor shaft. The lower end of the connecting shaft 49 is fixedly installed at the eccentric position of the eccentric wheel 48, and its upper end is rigidly connected to the diaphragm support 410 to transmit eccentric motion. When the eccentric wheel rotates, it generates eccentric motion, converting the motor rotation into reciprocating oscillation, driving the diaphragm to deform periodically, thus realizing positive displacement pumping.

[0027] like Figures 7 to 10 As shown, the diaphragm assembly includes an elastic pump diaphragm 411 and a diaphragm support 410. The upper edge of the elastic pump diaphragm 411 is fixed in an independent pump chamber of the upper partition 11 of the pump chamber, and the lower edge is fixed on the diaphragm support 410, forming a flexible sealing structure. The diaphragm is made of elastic material, which can be repeatedly deformed, is fatigue-resistant, and has good sealing performance, replacing the traditional cup structure and significantly improving service life and sealing reliability. The bottom center of the diaphragm support 410 is connected to the upper end of the connecting shaft 49 to drive the overall movement of the diaphragm and ensure uniform force distribution. When the eccentric wheel 48 rotates, the diaphragm support 410 drives the elastic pump diaphragm 411 to perform horizontal reciprocating elastic deformation, causing the pump chamber volume to change periodically, realizing the intake and exhaust of gas. The periodic change in volume generates negative pressure intake and positive pressure exhaust, which, in conjunction with the one-way valve, achieves stable pumping.

[0028] The fluid transport assembly includes a flexible pump tube 44, a gas-liquid discharge connector 45, a gas inlet connector 46, and a liquid inlet connector 47. The flexible pump tube 44 is annularly wound around the outer wall of the planetary gear mounting shaft 431 of the planetary gear mounting bracket 43. The flexible material can be periodically squeezed, and the fluid is pushed and sheared to mix in conjunction with the revolution of the planetary gear. The gas-liquid discharge connector 45 is sealed and connected to the outlet end of the flexible pump tube 44, and outputs the mixed gas-liquid fluid. The gas inlet connector 46 and the liquid inlet connector 47 are both sealed and connected through the inlet end of the flexible pump tube 44. The gas inlet connector 46 is connected to the gas discharge connector 33 through the pump tube connection connector, so that the gas discharged from the pump chamber is introduced into the flexible pump tube to participate in the mixing, so that the two fluids are mixed in advance in the tube, improving the gas utilization rate and mixing uniformity.

[0029] When the invention is in operation, an external power source supplies power to the motor body 21 through the motor electrical pin 22. The motor rotating shaft 23 drives the sun gear 41 and the eccentric wheel 48 to rotate synchronously. The sun gear 41 drives the planetary gear set 42 to revolve around the planetary gear mounting bracket 43. The planetary gear set 42 forms a periodic rolling and squeezing action on the flexible pump tube 44, pushing the fluid inside the tube to flow continuously and generating a strong shearing effect, enhancing the gas-liquid mixing effect, and making the bubbles finer and more evenly distributed. The rotation of the eccentric wheel 48 drives the connecting shaft 49 to make an eccentric motion, which in turn drives the diaphragm bracket 410 to drive the elastic pump diaphragm 411 to reciprocate horizontally, causing the pump cavity volume to change periodically, generating negative pressure to draw in gas and positive pressure to discharge gas, thus achieving stable gas intake and exhaust. Liquid enters the flexible pump tube 44 through the liquid inlet connector 47, and gas enters the flexible pump tube 44 through the gas inlet connector 46. The two are pre-mixed in the flexible pump tube 44 and sheared and refined by the planetary gears. The mixed gas-liquid fluid is output through the gas-liquid outlet connector 45. The gas discharged from the pump chamber is introduced into the flexible pump tube 44 through the gas inlet connector 46 to participate in secondary mixing, further improving the gas utilization rate and mixing uniformity. The fluid discharged from the multi-chamber is collected and stabilized by the manifold 39 and then discharged uniformly through the gas outlet connector 33. The umbrella valve 36, the return spring 37 and the exhaust control valve core 38 form a one-way conduction structure, which effectively prevents fluid backflow, avoids dry running and air leakage, and ensures stable pump operation, stable flow, and uniform mixing.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A gas-liquid mixing pump, characterized in that, The pump body includes a main pump chamber (1), a bottom drive section (2), and a pump head cover section (3). The main pump chamber (1) includes an upper pump chamber partition (11), a pump chamber housing (13), a lower pump body cover (17), an upper side interface seat (15), a lower side interface seat (19), a planetary transmission mechanism, an eccentric drive mechanism, a diaphragm assembly, and a fluid transport assembly. The upper pump chamber partition (11) has four independent pump chambers. The lower pump body cover (17) has a positioning boss (18) that fits into the housing positioning groove (16) installed on its side wall. The upper side interface seat (15) is integrally formed on the other side wall of the pump chamber housing (13), and the lower side interface seat (19) integrally formed with the side wall of the lower pump body cover (17) is fastened with screws. The bottom drive part (2) includes a motor body (21), motor electrical pins (22) and motor rotating shaft (23); the upper end of the motor body (21) is fixedly connected to the pump body lower cover (17), the motor electrical pins (22) are set at the bottom of the motor body (21) for connecting to an external power source, and the motor rotating shaft (23) extends from the upper end of the motor body (21) and is connected to the eccentric drive mechanism inside the pump chamber body part (1); The pump head cover (3) includes a pump head cover (31), a connector cover (32), a gas discharge connector (33), a fixed assembly hole (34), a valve seat flow channel plate (35), a return spring (37), an exhaust control valve core (38), and a manifold (39). The connector cover (32) is mounted on the top of the pump head cover (31). The gas discharge connector (33) connects the manifold (39) to the outside. The fixed assembly hole (34) is opened through the periphery of the pump head cover (31) to lock the pump head cover (31) and the valve seat flow channel plate (35) together. The return spring (37) is fixedly connected inside the connector cover (32), and the lower end of the return spring (37) is fixedly connected to the exhaust control valve core (38).

2. The gas-liquid mixing pump according to claim 1, characterized in that: The upper partition (11) of the pump chamber has mounting holes (12) for sealing assembly with the positioning pins (14) distributed on the pump chamber housing (13); the top of the pump chamber housing (13) has positioning pins (14), and the side wall of the pump chamber housing (13) is provided with housing positioning grooves (16).

3. A gas-liquid mixing pump according to claim 1, characterized in that: The valve seat flow channel plate (35) is fixedly installed on the pump head cover (31); four umbrella valve mounting slots are distributed on the valve seat flow channel plate (35), and umbrella valves (36) are installed in the umbrella valve mounting slots.

4. A gas-liquid mixing pump according to claim 1, characterized in that: The exhaust control valve core (38) is located in the middle of the manifold (39), which is a hollow chamber inside the pump head cover (31) to collect the gas delivered by each pump chamber and discharge it to the outside through the gas discharge connector (33).

5. A gas-liquid mixing pump according to claim 1, characterized in that: The planetary transmission mechanism includes a sun gear (41), a planetary gear set (42), and a planetary gear mounting bracket (43). The central hole of the sun gear (41) is fixedly fitted onto the rotating shaft (23) of the motor. The planetary gear mounting bracket (43) includes an upper mounting plate, a lower positioning plate, and a middle support column. The upper mounting plate is evenly distributed with three planetary gear mounting shafts (431) around its circumference, which are used to position and support each planetary gear of the planetary gear set (42). The lower positioning plate is fixedly connected to the pump body lower cover (17) of the pump chamber main body (1). The bracket has a clearance hole for the sun gear (41) in the center, through which the sun gear (41) passes and meshes with the planetary gear set (42) for transmission.

6. A gas-liquid mixing pump according to claim 1, characterized in that: The eccentric drive mechanism includes an eccentric wheel (48) and a connecting shaft (49); the center hole of the eccentric wheel (48) is coaxially and fixedly connected to the rotating shaft (23) of the motor, and the lower end of the connecting shaft (49) is fixedly installed at the eccentric position of the eccentric wheel (48), and its upper end is rigidly connected to the diaphragm support (410) to transmit eccentric motion.

7. A gas-liquid mixing pump according to claim 1, characterized in that: The diaphragm assembly includes an elastic pump diaphragm (411) and a diaphragm support (410). The upper edge of the elastic pump diaphragm (411) is fixed in the independent pump chamber of the upper partition plate (11) of the pump chamber, and the lower edge is fixed on the diaphragm support (410). The bottom center of the diaphragm support (410) is connected to the upper end of the connecting shaft (49).

8. A gas-liquid mixing pump according to claim 1, characterized in that: The fluid transport assembly includes a flexible pump tube (44), a gas-liquid discharge connector (45), a gas inlet connector (46), and a liquid inlet connector (47). The flexible pump tube (44) is annularly wound around the outer wall of the planetary gear mounting shaft (431) of the planetary gear mounting bracket (43). The gas-liquid discharge connector (45) is sealed and connected to the outlet end of the flexible pump tube (44). The gas inlet connector (46) and the liquid inlet connector (47) are both sealed and connected through the inlet end of the flexible pump tube (44). The gas inlet connector (46) is connected to the gas discharge connector (33) through the pump tube connection connector.

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