Autonomous liquid supply type foam pump capable of stably outputting gas and liquid

Abstract

The invention discloses an automatic liquid supply type foam pump capable of stably outputting gas and liquid, and relates to the technical field of foam pumps, the automatic liquid supply type foam pump structurally comprises a double-output-shaft motor, a liquid supply pump, an air supply pump and a gas-liquid mixing part, the liquid supply pump is arranged on the double-output-shaft motor, the air supply pump is arranged on the liquid supply pump, and the gas-liquid mixing part is arranged between the liquid supply pump and the air supply pump; the liquid supply pump comprises a pump pipe, the pump pipe comprises a square pipe, the two ends of the square pipe are in pipe connection with cylindrical pipes, the interior of the square pipe is fixedly connected with a splayed plate, and the interior of the square pipe is fixedly connected with an arc-shaped hole plate. According to the automatic liquid supply type foam pump capable of stably outputting the gas and the liquid, liquid in the pump pipe can be prevented from flowing back, the gas and the liquid are continuously and stably conveyed, the foam generation effect is improved, the structure is simpler, and the production cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of foam pumps, in particular to an autonomous liquid supply type foam pump with stable gas and liquid output. Background Art

[0002] Foam pumps convert cleaning fluids into foamy fluids. Their principle is to use the gas they deliver to impact the liquid, breaking it up into a foamy mass. They are widely used in the mining industry (such as flotation processes), chemical industry, environmental protection (wastewater treatment), and food processing. Their core design goal is to address the cavitation issues that plague conventional pumps when conveying gaseous media, leading to reduced efficiency and even malfunction. In practice, foam pumps are commonly used in automatic hand sanitizer dispensers. A leather cup-type foam pump compresses and expands the gas before applying it to the liquid.

[0003] The leather cup type foam pump is a specially designed pump, which is mainly used for conveying media containing foam, gas or gas-liquid mixture. It is commonly used in mining flotation, chemical industry, environmental protection (sewage treatment), food processing and other fields. Its core feature is the use of leather cup to realize the conveying of media, which has good gas-liquid mixing adaptability and wear resistance. The leather cup is a flexible bowl-shaped seal or piston assembly. The liquid supply path of the leather cup type foam pump generally adopts the form of squeezing pump tube to convey liquid, and the gas supply path generally adopts the way of eccentric squeezing leather cup to convey gas. Finally, the gas and liquid are mixed in the foam pump, so that the pressurized gas and liquid impact and mix to form foam.

[0004] The existing self-liquid supply foam pump with stable gas-liquid output still has the following shortcomings: (1) The gas-liquid transmission is unstable. The liquid is squeezed and transported in the elastic pump tube. However, there are still parts that are not squeezed, which causes the liquid inside the pump tube to form a backflow, reducing the liquid transmission in the pump tube. Long-term use will reduce the elasticity of the leather cup, so that the deflection can only squeeze the gas transmission in the leather cup, reducing the gas transmission effect. Due to the reduced transmission effect of liquid and gas, the foam generation efficiency is reduced; (2) The traditional eccentric wheel, the pendulum shaft and the pendulum are not tightly connected, which causes the pendulum structure of the extrusion cup to rotate on its own, making it impossible to squeeze the bottom side of the cup evenly and continuously, resulting in uneven gas delivery and reduced foam formation effect; (3) The overall structure of the existing foam pump is relatively complex and the production cost is relatively high. Summary of the Invention

[0005] (1) Technical problems solved In response to the shortcomings of the existing technology, the present invention provides an autonomous liquid supply type foam pump with stable gas-liquid output, which solves the problems of unstable gas-liquid delivery, inability to continuously and stably deliver gas and liquid, loose connection between the eccentric wheel, the pendulum shaft and the pendulum, which causes the pendulum structure of the extrusion leather cup to rotate on its own, making it impossible to extrude the leather cup evenly and continuously and deliver gas continuously and evenly, as well as complex structure.

[0006] (2) Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: an autonomous liquid supply type foam pump with stable gas-liquid output, comprising a double-output shaft motor, a liquid supply pump, an air supply pump and a gas-liquid mixing part, wherein the liquid supply pump is arranged on the double-output shaft motor, the air supply pump is arranged on the liquid supply pump, and the gas-liquid mixing part is arranged between the liquid supply pump and the air supply pump, the liquid supply pump comprises a pump pipe, the pump pipe comprises a square tube, the two ends of the square tube are connected with a cylindrical tube, the interior of the square tube is fixedly connected with an eight-shaped plate, the interior of the square tube is fixedly connected with an arc-shaped orifice plate, the air supply pump comprises an eccentric wheel, a yaw shaft and a yaw body, the eccentric wheel is fixedly connected to the output shaft of the double-output shaft motor, a socket is provided at the top of the eccentric wheel, and limiting grooves are provided on both sides of the socket, and limiting strips are fixedly connected to the bottom of both sides of the yaw shaft, and the limiting strips are inserted into the limiting grooves, the yaw body comprises a base, the top of the base is fixedly connected with an elastic telescopic rod, and the top of the elastic telescopic rod is fixedly connected with a top seat, The top of the base is fixedly connected to a limiting plate, and the operation of the double-shaft motor enables the liquid supply pump and the air supply pump to work simultaneously, so that the liquid supply pump sucks out liquid and the air supply pump outputs gas, and finally the sucked out liquid is mixed with the output gas through the gas-liquid mixing part to form foam. The arrangement of the inserts, slots and square fixing grooves can ensure that the eccentric wheel and the yaw shaft do not rotate relative to each other, and the yaw shaft and the yaw body do not rotate relative to each other, thereby ensuring that the yaw body can squeeze the leather cup evenly and stably, so that the gas in the leather cup is continuously and evenly transported, thereby improving the uniformity of foam generation and the foam formation effect. The eight-shaped plate and the arc-shaped orifice plate can provide a certain supporting effect on the elastic pump tube, thereby improving the rebound effect of the pump tube and shortening the rebound time of the pump tube, thereby improving the suction efficiency of the liquid. The arrangement of the elastic telescopic rod can automatically fit on the bottom side of the leather cup according to the elasticity of the leather cup, thereby enabling all the air in the leather cup to be output, thereby improving the gas transportation effect.

[0007] Preferably, the arc-shaped orifice plate is located at the output port of the figure-eight plate, and multiple groups of the figure-eight plates and the arc-shaped orifice plates are provided, and the multiple groups of the figure-eight plates and the arc-shaped orifice plates are evenly distributed inside the square tube. By providing multiple groups of figure-eight plates and arc-shaped orifice plates, the backflow of the liquid sucked in by the elastic pump tube can be reduced, so that the double-output shaft motor can suck in more liquid by rotating the same number of circles, thereby improving the effect of the foam pump sucking in liquid, and through the provision of the arc-shaped orifice plate, a certain amount of bubbles can be mixed into the sucked liquid in advance, which facilitates further mixing with air to form foam, thereby improving the effect of foam formation.

[0008] Preferably, the deflection body also includes a fixing groove, which is opened at the bottom of the base, the top end of the deflection shaft is inserted into the inside of the fixing groove, and the bottom end of the deflection shaft is inserted into the inside of the socket, and by inserting the insertion strip into the inside of the slot, the deflection shaft and the eccentric wheel will not rotate relative to each other, and by inserting the square deflection shaft into the square fixing groove, the deflection shaft and the deflection body can be prevented from rotating relative to each other, so that the effect of the deflection body squeezing the leather cup at the back is better.

[0009] Preferably, the liquid supply pump also includes a motor base, a gear assembly, a retaining ring, a planetary bracket and a roller. The motor base is fixedly connected to the top of the dual-shaft motor, the gear assembly is arranged inside the motor base, the retaining ring is pressed on the top side of the gear assembly, and the retaining ring is located inside the motor base, the planetary bracket is arranged on the top side of the retaining ring, the roller is sleeved on the outside of the planetary bracket, and the pump pipe is arranged on the outside of the roller.

[0010] Preferably, the gear assembly includes a sun gear and planetary gears, the sun gear is fixedly connected to the output shaft of the dual-output shaft motor, the number of the planetary gears is set to three, the three planetary gears are evenly distributed and meshed with the surface of the sun gear, the three planetary gears are evenly distributed and meshed with the inner surface of the motor base, and the cylindrical pin of the planetary bracket is inserted into the interior of the planetary gear.

[0011] In the present invention, when the liquid supply pump is working, the dual-shaft motor drives the sun gear to rotate, the sun gear drives the planetary gears to rotate, and the planetary gears drive the rollers on the planetary frame to rotate. The rollers compress the inside of the elastic pump tube to form a vacuum, so that one end of the elastic pump tube sucks in the liquid.

[0012] Preferably, the air supply pump includes a pump body, a leather cup seat and a leather cup body, the pump body is fixedly connected to the top of the motor seat, the eccentric wheel, the yaw shaft and the yaw body are all located inside the pump body, the planetary bracket is located on the inner bottom side of the pump body, the leather cup seat is fixedly installed on the top of the pump body, and the leather cup body is fixedly installed inside the leather cup seat.

[0013] In the present invention, a double-shaft motor drives the eccentric wheel to rotate, the eccentric wheel drives the yaw shaft to rotate, and the yaw shaft drives the yaw body to rotate. The continuously rotating yaw body can squeeze the leather cup body, so that the leather cup body continuously performs telescopic movement, and air enters the interior of the leather cup body through the small holes on the yaw body.

[0014] Preferably, the air supply pump also includes a one-way valve seat, a one-way valve plate and an upper end cover, the one-way valve seat is fixedly installed on the top of the leather cup seat, the one-way valve plate is movably installed inside the one-way valve seat, and the upper end cover is fixedly connected to the top of the one-way valve seat.

[0015] Preferably, a sealing ring is placed between the one-way valve seat and the upper end cover, and an air outlet pipe is connected to one side of the upper end cover. The air inside the leather bowl body enters the inner side of the upper end cover through the one-way valve sheet, and then the air is output through the air outlet pipe.

[0016] Preferably, the gas-liquid mixing part includes a tee and an L-shaped tube, one end of the L-shaped tube extends into the liquid solution and is used to absorb the liquid, the other end of the L-shaped tube is connected to the input end of the pump tube, one end of the tee is connected to the output end of the pump tube, the top end of the tee is connected to the air outlet pipe, and the top end of the tee is used to transport gas, and the bottom end of the tee is used to output the gas-liquid mixture.

[0017] (3) Beneficial effects The present invention provides an autonomous liquid-supply foam pump with stable gas-liquid output. It has the following beneficial effects: (1) The self-liquid supply type foam pump with stable gas-liquid output can reduce the backflow of liquid in the pump tube and improve the delivery of liquid in the pump tube through the arrangement of the figure-eight plate and the arc-shaped orifice plate, and the arc-shaped orifice plate can increase the formation of bubbles in the liquid, thereby improving the subsequent foam formation effect. In addition, the figure-eight plate and the arc-shaped orifice plate can provide a certain supporting effect on the elastic pump tube, thereby improving the rebound effect of the pump tube and shortening the rebound time of the pump tube, thereby improving the liquid suction efficiency. Through the arrangement of the elastic telescopic rod, it can automatically fit on the bottom side of the leather cup according to the elasticity of the leather cup, thereby completely outputting the air in the leather cup and improving the gas delivery effect.

[0018] (2) The self-supplying foam pump with stable gas-liquid output can ensure that there is no relative rotation between the eccentric wheel and the yaw shaft, and no relative rotation between the yaw shaft and the yaw body, by means of the arrangement of inserts, slots and square fixing grooves, thereby ensuring that the yaw body can squeeze the leather cup evenly and stably, so that the gas in the leather cup is continuously and evenly transported, thereby improving the uniformity of foam generation and the foam formation effect.

[0019] (3) The self-liquid supply foam pump with stable gas and liquid output, through the setting of sun gear and planetary gear, uses multiple planetary gears to rotate around the sun gear, so that the overall stability of the foam pump during operation is higher, thereby making the gas and liquid more stable during transportation, and the final foam effect is more uniform and stable.

[0020] (4) The self-supplying foam pump with stable gas-liquid output has a simpler overall structure, which reduces the production cost of the foam pump. In addition, the gas-liquid partition is clear, the working anti-interference performance is better, and the working stability is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the present invention as a whole; Figure 2 This is a schematic diagram of the disassembled structure of the present invention as a whole; Figure 3 It is a schematic structural diagram of the pump tube of the present invention; Figure 4 This is a schematic diagram of the structure inside the pump tube of the present invention; Figure 5 It is a structural schematic diagram of the eccentric wheel of the present invention; Figure 6 Schematic diagram of the structure of the yaw shaft of the present invention; Figure 7 This is a schematic diagram of the bottom structure of the deflection device of the present invention; Figure 8 This is a schematic diagram of the top structure of the deflection device of the present invention; Figure 9 It is a schematic diagram of the local structure of the deflection of the present invention.

[0022] Figure: 1, double-shaft motor; 2, liquid supply pump; 21, motor base; 22, gear assembly; 221, sun gear; 222, planetary gear; 23, retaining ring; 24, pump tube; 241, square tube; 242, cylindrical tube; 243, splayed plate; 244, arc-shaped orifice plate; 25, planetary bracket; 26, roller; 3, air supply pump; 31, pump body; 32, eccentric wheel; 321, jack; 3 22. Limiting groove; 33. Deflection shaft; 331. Limiting strip; 34. Deflection body; 341. Base; 342. Elastic telescopic rod; 343. Top seat; 344. Limiting plate; 345. Fixing groove; 35. Leather cup seat; 36. Leather cup body; 37. One-way valve seat; 38. One-way valve disc; 39. Sealing ring; 310. Upper end cover; 4. Gas-liquid mixing part; 41. Tee pipe; 42. L-shaped pipe. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See Figure 1-9The present invention provides a technical solution: an autonomous liquid supply type foam pump with stable gas-liquid output, the structure of which includes a double-shaft motor 1, a liquid supply pump 2, an air supply pump 3 and a gas-liquid mixing part 4, the liquid supply pump 2 is arranged on the double-shaft motor 1, the air supply pump 3 is arranged on the liquid supply pump 2, the gas-liquid mixing part 4 is arranged between the liquid supply pump 2 and the air supply pump 3, the liquid supply pump 2 includes a pump pipe 24, the pump pipe 24 includes a square tube 241, the two ends of the square tube 241 are connected with a cylindrical tube 242, the interior of the square tube 241 is fixedly connected with an eight-shaped plate 243, the interior of the square tube 241 is fixedly connected with an arc-shaped orifice plate 244, the air supply pump 3 includes an eccentric wheel 32, a deflection shaft 33 The eccentric wheel 32 is fixedly connected to the output shaft of the double-output shaft motor 1, and a socket 321 is provided on the top of the eccentric wheel 32. The inner sides of the socket 321 are provided with limiting slots 322. The bottoms of the two sides of the yaw shaft 33 are fixedly connected with limiting strips 331. The limiting strips 331 are inserted into the inner sides of the limiting slots 322. The yaw body 34 includes a base 341. The top of the base 341 is fixedly connected with an elastic telescopic rod 342. The top of the elastic telescopic rod 342 is fixedly connected with a top seat 343. The top of the base 341 is fixedly connected with a limiting plate 344. Through the operation of the double-output shaft motor 1, the liquid supply pump 2 and the air supply pump 3 are simultaneously The liquid supply pump 2 sucks out liquid and the air supply pump 3 outputs gas, and finally the sucked out liquid is mixed with the output gas through the gas-liquid mixing part 4 to form foam. The multiple sets of eight-shaped plates 243 and arc-shaped orifice plates 244 are provided to reduce the backflow of the liquid sucked in by the elastic pump tube 24, so that the double-output shaft motor 1 can suck in more liquid by rotating the same number of circles, thereby improving the effect of the foam pump sucking in liquid, and the provision of the arc-shaped orifice plate 244 can make a certain amount of bubbles mixed in the sucked liquid in advance, thereby facilitating further mixing with air to form foam later, thereby improving the effect of foam formation. The inside of the groove prevents the yaw shaft 33 and the eccentric wheel 32 from rotating relative to each other, and by inserting the square yaw shaft 33 into the square fixing groove 345, the yaw shaft 33 and the yaw body 34 can be prevented from rotating relative to each other, so that the effect of the yaw body 34 squeezing the leather cup at the back is better. Due to long-term use, the elasticity of the leather cup will decrease, and the setting of the elastic telescopic rod 342 can make the yaw body 34 automatically fit the bottom side of the leather cup, and the setting of the limit plate 344 can prevent the leather cup from squeezing the yaw body 34, so that the air in the leather cup is completely squeezed and transported.

[0025] The arc-shaped orifice plate 244 is located at the output port of the splayed plate 243 . There are multiple sets of the splayed plate 243 and the arc-shaped orifice plate 244 . The multiple sets of the splayed plate 243 and the arc-shaped orifice plate 244 are evenly distributed inside the square tube 241 .

[0026] Among them, the pendulum body 34 also includes a fixing groove 345, which is opened at the bottom of the base 341, the top end of the pendulum shaft 33 is inserted into the inside of the fixing groove 345, and the bottom end of the pendulum shaft 33 is inserted into the inside of the socket 321. By inserting the top end of the pendulum shaft 33 into the inside of the fixing groove 345, the pendulum shaft 33 can drive the pendulum body 34 to rotate when it rotates, ensuring that the subsequent pendulum body 34 squeezes the leather cup body 36 for continuous telescopic movement. At the same time, by setting the fixing groove 345 and the top end of the pendulum shaft 33 to be square, the pendulum shaft 33 and the pendulum body 34 can be prevented from relative rotation, thereby ensuring the rotation effect of the pendulum body 34 and thus ensuring the effect of the pendulum body 34 squeezing the leather cup body 36.

[0027] Among them, the liquid supply pump 2 also includes a motor base 21, a gear assembly 22, a retaining ring 23, a planetary bracket 25 and a roller 26. The motor base 21 is fixedly connected to the top of the dual-shaft motor 1, the gear assembly 22 is arranged inside the motor base 21, the retaining ring 23 is pressed on the top side of the gear assembly 22, and the retaining ring 23 is located inside the motor base 21, the planetary bracket 25 is arranged on the top side of the retaining ring 23, the roller 26 is sleeved on the outside of the planetary bracket 25, and the pump pipe 24 is arranged on the outside of the roller 26. The gear assembly 22 can be pressed against the inside of the motor base 21 through the retaining ring 23, and the gears can be well engaged, ensuring the effect of the motor driving the gear to rotate. Through the arrangement of the planetary bracket 25 and the roller 26, the planetary bracket 25 can drive the roller 26 to rotate, thereby causing the roller 26 to rotate and squeeze the elastic pump tube 24.

[0028] Among them, the gear assembly 22 includes a sun gear 221 and a planetary gear 222. The sun gear 221 is fixedly connected to the output shaft of the dual-axis motor 1. The number of planetary gears 222 is set to three. The three planetary gears 222 are evenly distributed and meshed with the surface of the sun gear 221. The three planetary gears 222 are evenly distributed and meshed with the inner surface of the motor base 21. The cylindrical pin of the planetary bracket 25 is inserted into the interior of the planetary gear 222. Through the setting of the sun gear 221 and the planetary gear 222, the dual-axis motor 1 can drive other components to rotate more stably, thereby ensuring the stability of the foam pump during operation.

[0029] When the liquid supply pump 2 is working, the dual-shaft motor 1 drives the sun gear 221 to rotate, the sun gear 221 drives the planetary gear 222 to rotate, and the planetary gear 222 drives the roller 26 on the planetary frame to rotate. The roller 26 presses the inside of the elastic pump tube 24 to form a vacuum, so that one end of the elastic pump tube 24 sucks in the liquid.

[0030] Among them, the air supply pump 3 includes a pump body 31, a leather cup seat 35 and a leather cup body 36. The pump body 31 is fixedly connected to the top of the motor seat 21. The eccentric wheel 32, the yaw shaft 33 and the yaw body 34 are all located inside the pump body 31. The planetary bracket 25 is located on the inner bottom side of the pump body 31. The leather cup seat 35 is fixedly installed on the top of the pump body 31, and the leather cup body 36 is fixedly installed inside the leather cup seat 35.

[0031] Among them, the air supply pump 3 also includes a one-way valve seat 37, a one-way valve plate 38 and an upper end cover 310. The one-way valve seat 37 is fixedly installed on the top of the leather cup seat 35, the one-way valve plate 38 is movably installed inside the one-way valve seat 37, and the upper end cover 310 is fixedly connected to the top of the one-way valve seat 37.

[0032] A sealing ring 39 is placed between the one-way valve seat 37 and the upper end cover 310 , and an air outlet pipe is connected to one side of the upper end cover 310 .

[0033] When the air supply pump 3 is working, the bottom end of the deflection shaft 33 is inserted into the socket 321 of the eccentric wheel 32, and the inserting strip is inserted into the inside of the slot, which can limit the deflection shaft 33 so that the deflection shaft 33 will not rotate when the eccentric wheel 32 drives the deflection shaft 33 to rotate. Then the top end of the deflection shaft 33 is inserted into the inside of the fixing groove 345. Since the top end of the deflection shaft 33 and the fixing groove 345 are both set to be square, when the deflection shaft 33 drives the deflection body 34 to rotate, the deflection The pendulum body 34 itself does not rotate. The dual-shaft motor 1 drives the eccentric wheel 32 to rotate, the eccentric wheel 32 drives the yaw shaft 33 to rotate, and the yaw shaft 33 drives the yaw body 34 to rotate. The continuously rotating yaw body 34 can squeeze the leather cup body 36, so that the leather cup body 36 continuously performs expansion and contraction movements. Air enters the interior of the leather cup body 36 from the small hole on the yaw body 34, and the air inside the leather cup body 36 enters the inner side of the upper end cover 310 through the one-way valve plate 38, and then the air is output through the air outlet pipe.

[0034] Among them, the gas-liquid mixing part 4 includes a tee pipe 41 and an L-shaped pipe 42. One end of the L-shaped pipe 42 extends into the liquid solution and is used to absorb the liquid. The other end of the L-shaped pipe 42 is connected to the input end of the pump pipe 24. One end of the tee pipe 41 is connected to the output end of the pump pipe 24. The top of the tee pipe 41 is connected to the air outlet pipe, and the top of the tee pipe 41 is used to transport gas, and the bottom end of the tee pipe 41 is used to output the gas-liquid mixture.

[0035] When the gas-liquid mixing part 4 is working, the liquid sucked in by the elastic pump tube 24 enters one end of the three-way pipe 41, and then the air outlet pipe is connected to the top end of the three-way pipe 41 through an external connecting pipe, so that the air output by the air outlet pipe enters the top end of the three-way pipe 41. Finally, the liquid and air are mixed in the three-way pipe 41 to form foam, and the formed foam is finally output through the bottom end of the three-way pipe 41.

[0036] Working principle: The dual-shaft motor 1 drives the sun gear fixed on the output shaft and the eccentric wheel 32 fixed on the shaft head to rotate. Through the mutual meshing of the sun gear 221, the planetary gears 222 and the inner ring gear on the motor base 21, a set of planetary gears 222 make a circular motion around the sun gear 221, which is pressed with the retaining ring 23 to form a semi-closed gear box. The roller 26 is sleeved on the cylindrical pin of the planetary bracket 25, and the elastic pump tube 24 is installed. The two ends of the elastic pump tube 24 are respectively installed with a three-way pipe 41 and an L-shaped pipe 42. The dual-shaft motor 1 drives the sun gear 221 and the planetary gear 222 to rotate, and the planetary bracket 25 on the planetary gear 222 rotates accordingly, thereby rotating the roller 26 sleeved on the cylindrical pin of the planetary bracket 25. The rotation of the planetary bracket 25 forces the roller 26 to press the elastic pump tube. A vacuum is formed inside the pump tube 24, and a negative pressure is generated inside the pump tube 24, thereby sucking in liquid. The liquid enters one end of the three-way pipe 41 through the pump tube 24, and at the same time, the double-shaft motor 1 drives the eccentric wheel 32, the pendulum shaft 33 and the pendulum body 34 to rotate. The rotating pendulum body 34 can squeeze the leather cup body 36, so that the leather cup body 36 continuously performs telescopic movement, and air enters the interior of the leather cup body 36 from the small hole on the pendulum body 34. The air inside the leather cup body 36 enters the inner side of the upper end cover 310 through the one-way valve plate 38, and then the air enters the top of the three-way pipe 41 through the air outlet pipe, and then the air is mixed with the inhaled liquid to form foam, and finally the foam is output through the bottom end of the three-way pipe 41.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0038] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An autonomous liquid supply type foam pump with stable gas-liquid output, comprising a double-shaft motor (1), a liquid supply pump (2), an air supply pump (3) and a gas-liquid mixing unit (4), characterized in that: The liquid supply pump (2) is arranged on the double-output shaft motor (1), the air supply pump (3) is arranged on the liquid supply pump (2), the gas-liquid mixing part (4) is arranged between the liquid supply pump (2) and the air supply pump (3), the liquid supply pump (2) includes a pump pipe (24), the pump pipe (24) includes a square tube (241), both ends of the square tube (241) are connected to a cylindrical tube (242), the interior of the square tube (241) is fixedly connected to an eight-shaped plate (243), the interior of the square tube (241) is fixedly connected to an arc-shaped orifice plate (244), the air supply pump (3) includes an eccentric wheel (32), a deflection shaft (33) and a deflection body (34), the eccentric wheel (32) ) is fixedly connected to the output shaft of the double-output shaft motor (1), the top of the eccentric wheel (32) is provided with a socket (321), the inner sides of the socket (321) are provided with limiting grooves (322), the bottoms of both sides of the deflection shaft (33) are fixedly connected with limiting strips (331), the limiting strips (331) are inserted into the inner sides of the limiting grooves (322), the deflection body (34) includes a base (341), the top of the base (341) is fixedly connected with an elastic telescopic rod (342), the top of the elastic telescopic rod (342) is fixedly connected with a top seat (343), and the top of the base (341) is fixedly connected with a limiting plate (344).

2. The self-supplying foam pump with stable gas-liquid output according to claim 1, characterized in that: The arc-shaped orifice plate (244) is located at the output port of the splayed plate (243), and multiple groups of the splayed plate (243) and the arc-shaped orifice plate (244) are provided. The multiple groups of the splayed plate (243) and the arc-shaped orifice plate (244) are evenly distributed inside the square tube (241).

3. The self-supplying foam pump with stable gas and liquid output according to claim 1, characterized in that: The deflection body (34) further comprises a fixing groove (345), wherein the fixing groove (345) is provided at the bottom of the base (341), the top end of the deflection shaft (33) is inserted into the interior of the fixing groove (345), and the bottom end of the deflection shaft (33) is inserted into the interior of the socket (321).

4. The self-supplying foam pump with stable gas-liquid output according to claim 1, characterized in that: The liquid supply pump (2) further comprises a motor base (21), a gear assembly (22), a retaining ring (23), a planetary bracket (25) and a roller (26), wherein the motor base (21) is fixedly connected to the top of the double-shaft motor (1), the gear assembly (22) is arranged inside the motor base (21), the retaining ring (23) is pressed on the top side of the gear assembly (22), and the retaining ring (23) is located inside the motor base (21), the planetary bracket (25) is arranged on the top side of the retaining ring (23), the roller (26) is sleeved on the outside of the planetary bracket (25), and the pump pipe (24) is arranged on the outside of the roller (26).

5. The self-supplying foam pump with stable gas and liquid output according to claim 4, characterized in that: The gear assembly (22) comprises a sun gear (221) and planetary gears (222), wherein the sun gear (221) is fixedly connected to the output shaft of the dual-output shaft motor (1), and the number of the planetary gears (222) is set to three, wherein the three planetary gears (222) are evenly distributed and meshed with the surface of the sun gear (221), and the three planetary gears (222) are evenly distributed and meshed with the inner surface of the motor base (21), and the cylindrical pins of the planetary bracket (25) are inserted into the interior of the planetary gears (222).

6. The self-liquid supply type foam pump with stable gas and liquid output according to claim 4, characterized in that: The air supply pump (3) includes a pump body (31), a leather cup seat (35) and a leather cup body (36), wherein the pump body (31) is fixedly connected to the top of the motor seat (21), the eccentric wheel (32), the yaw shaft (33) and the yaw body (34) are all located inside the pump body (31), the planetary bracket (25) is located on the inner bottom side of the pump body (31), the leather cup seat (35) is fixedly installed on the top of the pump body (31), and the leather cup body (36) is fixedly installed inside the leather cup seat (35).

7. The self-liquid supply type foam pump with stable gas and liquid output according to claim 6, characterized in that: The air supply pump (3) further comprises a one-way valve seat (37), a one-way valve disc (38) and an upper end cover (310), wherein the one-way valve seat (37) is fixedly mounted on the top of the leather cup seat (35), the one-way valve disc (38) is movably mounted inside the one-way valve seat (37), and the upper end cover (310) is fixedly connected to the top of the one-way valve seat (37).

8. The self-liquid supply type foam pump with stable gas and liquid output according to claim 7, characterized in that: A sealing ring (39) is placed between the one-way valve seat (37) and the upper end cover (310), and an air outlet pipe is connected to one side of the upper end cover (310).

9. The self-supplying foam pump with stable gas and liquid output according to claim 8, characterized in that: The gas-liquid mixing portion (4) comprises a three-way pipe (41) and an L-shaped pipe (42), one end of the L-shaped pipe (42) extends into the liquid solution and is used to absorb the liquid, the other end of the L-shaped pipe (42) is connected to the input end of the pump pipe (24), one end of the three-way pipe (41) is connected to the output end of the pump pipe (24), the top end of the three-way pipe (41) is connected to the gas outlet pipe, and the top end of the three-way pipe (41) is used to transport gas, and the bottom end of the three-way pipe (41) is used to output the gas-liquid mixture.

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