Liquid pumping component for foaming system and foaming system

Abstract

The utility model relates to a liquid pumping component for a foaming system, the foaming system and a control method, and the liquid pumping component comprises a cylinder body part which is provided with a liquid suction port communicated with a liquid storage cavity of the foaming system and a liquid discharge port communicated with a mixing cavity of the foaming system; the piston part is movably arranged in the cylinder body part, and a cavity communicated with the liquid suction port and the liquid discharge port is defined by the piston part and the cylinder body part; the driving part is connected with the piston part, and the driving part drives the piston part to do reciprocating motion in the axial direction of the cylinder body part; the valve body part is arranged on the cylinder body part and / or the piston part and is configured to control connection and disconnection between the liquid storage cavity and the cavity; and the detection piece is arranged on the cylinder body part and / or the piston part, and the detection piece can detect motion parameters of the piston part and generate a feedback signal to control the driving part to work. According to the utility model, the structure of the reciprocating infusion pump is adopted, the detection piece is arranged to detect the motion parameters of the piston part to meter the liquid pumping amount, and the influence of flow resistance fluctuation caused by liquid viscosity difference on the metering precision is effectively eliminated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of foaming system, especially to a liquid pumping component for foaming system and a foaming system. BACKGROUND

[0002] The foaming system is a device that extracts cleaning liquid (such as dishwashing liquid, shower gel, shampoo, etc.) and mixes it with water in proportion to form a foaming cleaning liquid. By dynamically mixing the liquid with water, the concentration of the original liquid is reduced, generating uniform and delicate foam, thereby improving cleaning efficiency and reducing chemical residues. To achieve a more abundant foam effect, some products further introduce gas (such as air) as a foaming medium, or enhance the gas-liquid mixing efficiency through foaming structures such as foaming nets, making the foam more dense and fluffy.

[0003] The foaming system can be adapted to various application scenarios. For example, in the kitchen environment, to address the problem of excessive use and difficult rinsing of high-viscosity dishwashing liquid, the foaming system can dilute the concentrated liquid into a foaming cleaning agent, achieving a balance between cleaning power and usage. In the bathroom scenario, when users have a high demand for the amount of foam from shower gel or shampoo, the foaming system can directly output abundant foam, eliminating the need for manual rubbing and improving the user experience.

[0004] However, the current foaming system has the problem of low accuracy in measuring the extracted cleaning liquid. The current foaming system is based on the power parameters of the driving motor to indirectly calculate the amount of extracted cleaning liquid. However, the flow resistance of different concentrations or viscosities of liquid flowing through the liquid pumping structure is significantly different, resulting in a large fluctuation in the actual delivery volume under the same power. For example, high-viscosity liquid will force the motor to increase its load due to the increased flow resistance, while low-viscosity liquid will flow faster under the same power, causing the system to misjudge the actual extraction amount, and ultimately affecting the uniformity of the foam and the cleaning efficiency. SUMMARY

[0005] In view of the above-mentioned deficiencies of the prior art, the purpose of the utility model is to provide a liquid pumping component for a foaming system, a foaming system, and a control method, aiming to at least solve one of the above-mentioned problems of the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a liquid pumping component for a foaming system, comprising:

[0008] The cylinder body is provided with a liquid suction port connected to the liquid storage chamber of the foaming system and a liquid discharge port connected to the mixing chamber of the foaming system.

[0009] A piston part movably arranged in the cylinder part and surrounding a chamber with the liquid suction port and the liquid discharge port;

[0010] A driving part connected to the piston part, the driving part driving the piston part to reciprocate along the axial direction of the cylinder part;

[0011] A valve part arranged on the cylinder part and / or the piston part and configured to control the connection between the liquid storage chamber and the chamber;

[0012] A detection part arranged on the cylinder part and / or the piston part, the detection part capable of detecting the motion parameter of the piston part and generating a feedback signal to control the driving part.

[0013] In the above technical solution, the two ends of the piston part along the axial direction respectively surround the first chamber and the second chamber connected to each other, the first chamber is connected to the liquid suction port, and the second chamber is connected to the liquid discharge port.

[0014] The valve part is configured to control the connection between the first chamber and the liquid storage chamber and the connection between the first chamber and the second chamber.

[0015] In the above technical solution, the piston part is configured with a channel along the axial direction thereof, one end of the channel is connected to the first chamber, and the other end of the channel is connected to the second chamber.

[0016] In the above technical solution, the piston part is an integral structure and is configured with a first plug, a second plug and a connecting rod, one end of the connecting rod is connected to the first plug, and the other end of the connecting rod is connected to the second plug, the first plug, the second plug and the connecting rod are hollow structures and jointly define the channel.

[0017] Sealing rings are arranged on the outer peripheral walls of the first plug and the second plug, respectively.

[0018] In the above technical solution, the cylinder part includes a first cylinder and a second cylinder arranged oppositely and spaced apart, the first plug is located in the first cylinder and surrounds the first chamber with the first cylinder, and the second plug is located in the second cylinder and surrounds the second chamber with the second cylinder.

[0019] In the above technical solution, the valve part includes a first one-way valve and a second one-way valve, the first one-way valve is arranged in the liquid suction port, and the second one-way valve is arranged on one end of the piston part close to the second chamber.

[0020] In the technical scheme, the cylinder body part is provided with a ejector rod at the position of the liquid suction port, the ejector rod is opposite to the spool position of the second one-way valve, and the ejector rod is configured to push the spool of the second one-way valve.

[0021] In the technical scheme, the liquid suction port and the liquid discharge port are located on two opposite end faces of the cylinder body part in the axial direction.

[0022] The axial direction of the cylinder body part is perpendicular to the horizontal plane.

[0023] In the technical scheme, one of the end faces of the cylinder body part is outwardly protruded from the liquid suction port to form a liquid suction nozzle, and the other end face is outwardly protruded from the liquid discharge port to form a liquid discharge nozzle.

[0024] The liquid suction nozzle extends in the axial direction or is bent to extend, and / or the liquid discharge nozzle extends in the axial direction or is bent to extend.

[0025] In the technical scheme, further comprising:

[0026] The mounting shell assembly comprises a first shell, a second shell and a third shell, and the first shell is configured with a first recess and a second recess.

[0027] The first recess and the second shell are spliced and combined in the axial direction to form a containing space for containing the cylinder body part and the piston part, and the second recess and the third shell are spliced and combined in the axial direction to form a containing space for containing at least part of the driving part, wherein the opening of the first recess is opposite to the opening of the second recess.

[0028] In the technical scheme, the driving part comprises:

[0029] The motor has an output shaft.

[0030] The transmission gear set is drivingly connected with the output shaft and the piston part, and a protruding rod is arranged on the terminal gear of the transmission gear set, and the output shaft drives the transmission gear set to rotate, so that the protruding rod rotates.

[0031] The piston part is provided with a sliding groove structure, the extension direction of the sliding groove structure has an included angle with the axial direction of the piston part, the protruding rod is slidingly matched with the sliding groove structure, and the rotation of the protruding rod drives the piston part to move in the axial direction.

[0032] The utility model further provides a foaming system, which comprises:

[0033] The mixing cavity has at least two inlets, one of which is used for communicating with a water channel.

[0034] The liquid storage cavity is used for storing cleaning liquid.

[0035] The liquid pumping component according to any one of the preceding aspects, wherein the liquid suction port of the liquid pumping component is connected to the liquid storage cavity, and the liquid discharge port of the liquid pumping component is connected to the other inlet of the mixing cavity.

[0036] The liquid pumping component provided by the utility model has the structure of a reciprocating liquid pumping pump, and the movement parameters (such as displacement, movement speed or acceleration) of the piston part are monitored in real time through the detection member, the actual liquid pumping amount is calculated through the movement parameters of the piston part, the traditional mode of indirectly calculating the flow rate by relying on the power of a motor is abandoned, the influence of flow resistance fluctuation caused by the viscosity difference of liquid on the measurement accuracy is effectively eliminated, and the volume change of the chamber corresponding to each unit stroke of the piston part is relatively fixed, the detection member can accurately obtain the volume of the clean liquid actually delivered by detecting the reciprocating movement times, displacement and frequency of the piston part, the measurement accuracy of the liquid pumping amount is higher, and therefore, it is beneficial to realize the dynamic adaptation of liquid of different concentrations to water in the mixing cavity according to a preset proportion, and the foaming effect is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 The utility model provides a three-dimensional view of the liquid pumping component of an embodiment of the utility model;

[0038] Figure 2 The utility model provides a sectional view of the liquid pumping component of an embodiment of the utility model;

[0039] Figure 3 The utility model provides a sectional view of the partial structure of the liquid pumping component of an embodiment of the utility model;

[0040] Figure 4 The utility model provides an exploded view of the partial structure of the liquid pumping component of an embodiment of the utility model;

[0041] Figure 5 The utility model provides an exploded view of the liquid pumping component of an embodiment of the utility model;

[0042] Figure 6 The utility model provides a three-dimensional view of the piston part of an embodiment of the utility model;

[0043] Figure 7 The utility model provides a schematic view of the liquid suction nozzle and liquid discharge nozzle matching part of an embodiment of the utility model.

[0044] The correspondence between the reference signs and the component names is as follows:

[0045] 10, pumping component; 100, cylinder part; 101, liquid suction port; 102, liquid discharge port; 103, first chamber; 104, second chamber; 110, first cylinder; 111, liquid suction nozzle; 112, ejector rod; 120, second cylinder; 121, liquid discharge nozzle; 200, piston part; 201, channel; 210, first plug head; 220, second plug head; 230, connecting rod; 231, sliding groove; 240, sealing ring; 300, driving part; 310, motor; 311, output shaft; 320, transmission gear set; 321, protruding rod; 410, first one-way valve; 420, second one-way valve; 500, mounting shell assembly; 510, first shell; 511, first recess; 512, second recess; 520, second shell; 530, third shell. DETAILED DESCRIPTION

[0046] In order to enable the above-mentioned objects, features and advantages of the present application to be more clearly understood, the following will further describe the present application with reference to the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0047] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in other ways different from those described herein, and therefore, the scope of the present application is not limited by the specific embodiments disclosed below.

[0048] The following will refer to the accompanying Figure 1 to the accompanying Figure 7 The pumping component 10 of the foaming system according to some embodiments of the present application is described. It should be noted that although the pumping component 10 is mainly applied to the foaming system, its structural design is based on the requirements of the foaming system, but this does not mean that it is limited to the application of the foaming system. In fact, this component is also applicable to other products that require pumping function.

[0049] As shown in Figure 1 and Figure 2 , the present embodiment provides a pumping component 10 for a foaming system, comprising: a cylinder part 100, a piston part 200, a driving part 300, a valve body part and a detection member.

[0050] The cylinder part 100 is the core component of the pumping component 10, which has the function of bearing the piston part 200. The cylinder part 100 extends along the axial direction, and the cylinder part 100 is provided with a liquid suction port 101 which is in communication with a liquid storage cavity of the foaming system and a liquid discharge port 102 which is in communication with a mixing cavity of the foaming system.

[0051] The piston part 200 is movably arranged in the cylinder part 100 and surrounds a chamber with the cylinder part 100 in communication with the liquid suction port 101 and the liquid discharge port 102.

[0052] The driving part 300 is connected with the piston part 200, the driving part 300 drives the piston part 200 to reciprocate along the axial direction of the cylinder part 100, and the valve body part is arranged on the cylinder part 100 and / or the piston part 200 and is configured to control the on-off between the liquid storage cavity and the chamber.

[0053] The detection member is arranged on the cylinder part 100 and / or the piston part 200, and the detection member can detect the motion parameters of the piston part 200 and generate a feedback signal to control the driving part 300 to work. For example, the detection member includes a photoelectric sensor, a displacement sensor and the like.

[0054] The liquid suction port 101, the cylinder part 100 and the liquid discharge port 102 are arranged on the cylinder part 100, and the liquid suction port 101 and the liquid discharge port 102 are arranged on the piston part 200, and the liquid suction port 101 and the liquid discharge port 102 are arranged on the piston part 200.

[0055] The liquid suction port 101, the cylinder part 100 and the liquid discharge port 102 are arranged on the cylinder part 100, and the liquid suction port 101 and the liquid discharge port 102 are arranged on the piston part 200, and the liquid suction port 101 and the liquid discharge port 102 are arranged on the piston part 200.

[0056] In one embodiment, the liquid suction part 10 can be designed as a single-cylinder part, specifically, the cylinder part 100 and the piston part 200 enclose a chamber, the piston part 200 moves in one direction to realize liquid suction, and moves in the other direction to realize liquid discharge, and such a structure is simple.

[0057] In another embodiment, the liquid suction part 10 can be designed as a double-cylinder part, specifically, the two ends of the piston part 200 in the axial direction enclose the first chamber 103 and the second chamber 104 with the cylinder part 100, the first chamber 103 and the second chamber 104 are communicated, the first chamber 103 is communicated with the liquid suction port 101, and the second chamber 104 is communicated with the liquid discharge port 102.

[0058] The piston is driven to move in the cylinder part 100 by the driving part 300, so that the cleaning liquid in the liquid storage cavity is transported into the mixing cavity of the foaming system through the liquid suction port 101, the first cavity 103, the second cavity 104 and the liquid discharge port 102.

[0059] In more detail, the first cavity 103 and the second cavity 104 formed by the piston part 200 and the cylinder part 100 are in communication with each other. When the valve controls the conduction between the first cavity 103 and the liquid storage cavity and controls the disconnection between the first cavity 103 and the second cavity 104, the driving part 300 drives the piston part 200 to move in the direction away from the liquid suction port 101 and close to the liquid discharge port 102, so that the volume of the first cavity 103 increases and the volume of the second cavity 104 decreases, the cleaning liquid in the liquid storage cavity is sucked into the first cavity 103 through the liquid suction port 101, and the cleaning liquid in the second cavity 104 is discharged through the liquid discharge port 102; when the valve controls the disconnection between the first cavity 103 and the liquid storage cavity and controls the conduction between the first cavity 103 and the second cavity 104, the driving part 300 drives the piston part 200 to move in the direction close to the liquid suction port 101 and away from the liquid discharge port 102, so that the volume of the first cavity 103 decreases and the volume of the second cavity 104 increases, the cleaning liquid in the first cavity 103 is discharged into the second cavity 104, and the driving part 300 drives the piston to reciprocate, thereby realizing continuous and stable extraction of the cleaning liquid.

[0060] The liquid extraction component 10 provided in the embodiment drives the piston part 200 to reciprocate in the cylinder part 100 along the axial direction by the driving part 300, so that the volumes of the first cavity 103 and the second cavity 104 at both ends of the piston alternately change, and the continuous and stable extraction of the viscous liquid is realized by the pressure difference between the cavities. The liquid extraction component 10 is especially suitable for the continuous and stable transportation of viscous cleaning liquids such as dishwashing liquid and shower gel. The liquid suction and liquid discharge actions are cooperatively completed in a single stroke of the piston, and the liquid extraction efficiency is higher. At the same time, the linear characteristic of the reciprocating movement of the piston enables the extraction amount to be accurately controlled by adjusting the stroke or the frequency, so that the foaming system can maintain a constant liquid mixing ratio under different working conditions, thereby generating uniform and delicate foam.

[0061] Further, the communication mode between the first cavity 103 and the second cavity 104 at least includes the following two implementation modes.

[0062] In one implementation mode, a pipeline for communicating the first cavity 103 and the second cavity 104 is arranged on the cylinder. More specifically, a first through hole communicating with the first cavity 103 and a second through hole communicating with the second cavity 104 are arranged on the side wall or the end wall of the cylinder, and the first through hole and the second through hole are communicated by the pipeline.

[0063] In another embodiment, as shown in FIG. 6, the first cavity 103 and the second cavity 104 are communicated by a through hole 105 arranged on the side wall of the cylinder. Figure 3 and Figure 4As shown, the piston part 200 has a channel 201 constructed along its axial direction. One end of the channel 201 communicates with the first chamber 103, and the other end communicates with the second chamber 104. The channel 201 passes through the piston part 200.

[0064] By providing an internal channel 201 axially connecting the first chamber 103 and the second chamber 104 in the piston section 200, the piston section 200 can simultaneously complete the liquid suction and discharge actions in a single reciprocating motion. On the one hand, this shortens the liquid flow path, allowing the liquid to flow directly through the short path inside the piston, avoiding the flow path detours and local resistance accumulation problems caused by relying on external bypass pipes in traditional designs. This significantly improves the delivery efficiency of high-viscosity cleaning fluids and eliminates potential leaks and blockages from external pipes and interfaces. On the other hand, integrating the channel 201 into the piston section 200 fully utilizes the space within the cylinder section 100, reducing additional piping structures and achieving a compact structural design. This facilitates product miniaturization, making the liquid suction component 10 better meet the needs of foaming systems with limited installation space. Furthermore, the hollow structural design of the piston section 200 reduces weight while ensuring strength, which helps reduce the load on the drive section 300 and reduce inertial impact, thereby extending component life and reducing energy consumption.

[0065] Furthermore, the piston part 200 is an integrally formed structure and is constructed with a first plug 210, a second plug 220 and a connecting rod 230. One end of the connecting rod 230 is transitionally connected to the first plug 210 and the other end is transitionally connected to the second plug 220. The first plug 210, the second plug 220 and the connecting rod 230 are all hollow structures and together define the channel 201.

[0066] The piston part 200 with a one-piece molded structure has better rigidity and sealing performance. The piston part 200 is designed as a segmented form of a first plug 210, a second plug 220 and a connecting rod 230, which further reduces the weight of the product. The hollow first plug 210, second plug 220 and connecting rod 230 form a continuous channel 201, which eliminates the connection gap and leakage risk that may occur in the separate assembly, and reduces the resistance when high viscosity liquid flows inside the piston part 200.

[0067] Sealing rings 240 are respectively provided on the outer peripheral walls of the first stopper 210 and the second stopper 220. The sealing rings 240 dynamically fit with the inner wall of the cylinder body 100 to prevent liquid from entering between the peripheral wall of the piston part 200 and the peripheral wall of the cylinder body 100, which could cause the piston part 200 to get stuck.

[0068] Furthermore, such as Figure 5 and Figure 6As shown, the cylinder body 100 includes a first cylinder body 110 and a second cylinder body 120 that are arranged opposite to each other and spaced apart. A first plug 210 is located inside the first cylinder body 110 and surrounds the first cylinder body 110 to form a first chamber 103. A second plug 220 is located inside the second cylinder body 120 and surrounds the second cylinder body 120 to form a second chamber 104.

[0069] In this way, the cylinder body 100 is designed as a split structure, with the first cylinder body 110 and the second cylinder body 120 arranged opposite to each other and spaced apart. The piston body 200 is located between the first cylinder body 110 and the second cylinder body 120 and moves relative to the first cylinder body 110 and the second cylinder body 120. By dividing the cylinder body 100 into independent first cylinder body 110 and second cylinder body 120, the overall weight is significantly reduced while ensuring the chamber sealing, thus achieving a lightweight product design.

[0070] The space between the first cylinder block 110 and the second cylinder block 120 is formed as a clearance space, providing more space. The drive unit 300 is connected to the connecting rod 230 of the piston unit 200 and can move within the clearance space, thus making fuller use of the space and achieving a compact layout.

[0071] Furthermore, the connecting rod 230 is provided with a protruding structure for connecting with the drive unit 300. The drive unit 300 acts on the protruding structure, allowing the protruding structure to move within the clearance space.

[0072] In some embodiments, the valve body includes a first check valve 410 and a second check valve 420. The first check valve 410 is disposed in the suction port 101, and the second check valve 420 is disposed on the piston portion 200 near one end of the second chamber 104.

[0073] The directional flow characteristic of the check valve ensures that the liquid flows only in one direction from the suction port 101 to the discharge port 102. Precise synchronization of suction and discharge actions is achieved without the need for an additional control module. The mechanical valve structure has no complex transmission components, reducing manufacturing costs and ensuring stable and reliable operation. The first check valve 410 is integrated into the suction port 101, facilitating the drainage of clean liquid from the first chamber 103 to the second chamber 104. The second check valve 420 is located on the piston portion 200 near the end of the second chamber 104, facilitating the drainage of clean liquid from the second chamber 104 to the mixing chamber, preventing the retention of high-viscosity liquid.

[0074] Furthermore, the cylinder body 100 is provided with a push rod 112 at the location of the suction port 101. The push rod 112 is positioned opposite to the valve core of the second one-way valve 420, and the push rod 112 is configured to push the valve core of the second one-way valve 420.

[0075] By setting a push rod 112 at the suction port 101, which is opposite to the valve core of the second one-way valve 420, when the piston 200 is stuck due to the resistance of the high-viscosity cleaning liquid and cannot move towards the discharge port 102, the drive unit 300 can be controlled to continuously apply force, causing the piston 200 to continue moving towards the suction port 101. This causes the push rod 112 to abut against and push the valve core of the second one-way valve 420 to forcefully open, breaking the pressure difference lock between the two chambers. This allows the stagnant liquid to flow into the channel 201 to balance the pressure. After eliminating the movement resistance of the piston 200, the drive unit 300 then switches direction to drive the piston 200 to reset, achieving self-release from the jam. This embodiment responds to the jamming state and autonomously performs pressure relief operations through a purely mechanical structure, without the need for sensors or electronic control units. This avoids complex logic algorithms or additional energy consumption, and specifically solves the intermittent jamming problem in the transportation of high-viscosity liquids while maintaining the simplicity and reliability of the system. It is especially suitable for the long-term stable operation requirements of the pumping component 10 under frequent start-stop or variable load scenarios.

[0076] It should be noted that the push rod 112 only triggers the mechanical linkage when the piston part 200 is abnormally jammed. Under normal operating conditions, the second check valve 420 still relies on the pressure difference to open and close autonomously, ensuring that the stability of flow control is not disturbed.

[0077] In some embodiments, the suction port 101 and the discharge port 102 are located on two opposite end faces of the cylinder body portion 100 in the axial direction. That is, the suction port 101 is located on one end face of the cylinder body portion 100 in the axial direction, and the discharge port 102 is located on the other end face of the cylinder body portion 100 in the axial direction.

[0078] The suction port 101 and the discharge port 102 are respectively set on the end faces of opposite ends of the cylinder body 100 along the axial direction, so that the cleaning liquid forms a straight flow path along the axial direction inside the cylinder body 100. On the one hand, compared with the traditional side opening or curved flow channel design, it reduces the risk of liquid stagnation and residue caused by the detour of the path. In particular, it can significantly reduce the risk of residue accumulation for viscous liquids. On the other hand, the thrust of the piston 200 along the axial direction acts directly on the liquid flow direction, and the driving force has no radial component loss, ensuring that energy is efficiently transferred to the liquid medium and improving the pumping efficiency per unit stroke. The straight flow channel also shortens the liquid flow path length, further reducing the flow resistance and the motion load of the piston 200. Under the same output power, a higher viscosity cleaning liquid can be delivered.

[0079] Furthermore, the cylinder block 100 extends axially perpendicular to the horizontal plane.

[0080] By designing the cylinder body 100 to extend axially perpendicular to the horizontal plane, the suction port 101 and the liquid channel 201 of the storage chamber are arranged along the direction of gravity. When the suction port 101 is above the discharge port 102, the storage chamber can be located above the cylinder body 100. The cleaning liquid naturally settles to the suction port 101 area under the action of gravity, reducing the negative pressure requirement of the piston 200 in the initial suction stage, reducing the power consumption of the drive unit 300, and avoiding the risk of dry suction. Generally, the foaming system has a platform that serves as both a shell and a storage space. When the suction port 101 is above the discharge port 102, the storage chamber can be placed directly on the platform. When the suction port 101 is below the discharge port 102, the storage chamber can be located below the cylinder body 100. The negative pressure formed during the upward suction stroke of the piston 200 can efficiently overcome the gravitational potential energy of the liquid, ensuring stable extraction under low liquid level conditions. The storage chamber is placed below the platform, leaving the platform empty so that other items can be placed on it. This design allows the liquid storage chamber and the liquid pumping component 10 to flexibly choose their relative positions according to the installation space requirements, adapting to the pipeline layout constraints of different scenarios. The vertical flow channel structure simplifies the sealing design of the liquid suction and discharge interface, reduces the probability of leakage and improves system reliability, and is especially suitable for foaming application scenarios that require frequent replacement of cleaning fluid or intermittent start and stop.

[0081] Furthermore, one end face of the cylinder body 100 protrudes outward from the liquid inlet 101 to form a liquid inlet 111, and the other end face of the cylinder body 100 protrudes outward from the liquid outlet 102 to form a liquid outlet 121.

[0082] By forming a suction nozzle 111 and a discharge nozzle 121 by protruding on both ends of the cylinder body 100, the outward protrusion structure can be directly connected and matched with external pipelines, providing clear interface positioning and a larger contact area, which facilitates quick docking and eliminates the need for additional adapters, reducing the risk of pipeline misalignment or loosening.

[0083] The suction nozzle 111 can be designed to extend axially or to be bent and extended.

[0084] The drain nozzle 121 can also be designed to extend axially or to be bent and extended. The specific shape can be designed according to actual needs.

[0085] In some embodiments, the liquid extraction component 10 further includes a mounting shell assembly 500, which includes a first shell 510, a second shell 520, and a third shell 530. The first shell 510 is configured with a first cavity 511 and a second cavity 512. The first cavity 511 and the second shell 520 are joined together axially to form a receiving space for accommodating the cylinder portion 100 and the piston portion 200. The second cavity 512 and the third shell 530 are joined together axially to form a receiving space for accommodating at least a portion of the drive portion 300. The opening of the first cavity 511 is opposite in direction to the opening of the second cavity 512.

[0086] The first housing 510, the second housing 520, and the third housing 530 of the mounting housing assembly 500 are separately spliced ​​to form a modular assembly structure. The cylinder part 100 and the piston part 200 are installed and fixed by axial alignment splicing of the first cavity 511 and the second housing 520. The drive part 300 is axially assembled and fixed by the second cavity 512 and the third housing 530. The compact arrangement between the cylinder part 100 and the drive part 300 is achieved by using the layout of the opening directions of the first cavity 511 and the second cavity 512 in opposite directions, which significantly improves the installation efficiency and positioning accuracy.

[0087] In some embodiments, the drive unit 300 includes a motor 310 and a transmission gear set 320. The motor 310 has an output shaft 311, and the transmission gear set 320 is connected to the output shaft 311 and the piston unit 200. The end gear of the transmission gear set 320 is provided with a protruding rod 321. The output shaft 311 drives the transmission gear set 320 to rotate, causing the protruding rod 321 to rotate. The piston unit 200 is provided with a sliding groove 231. The extending direction of the sliding groove 231 forms an angle with the axial direction of the piston unit 200. The protruding rod 321 slides in contact with the sliding groove 231. The rotation of the protruding rod 321 drives the piston unit 200 to move axially.

[0088] Furthermore, the groove 231 extends in a direction perpendicular to the axial direction of the piston portion 200, that is, the extension direction of the groove 231 is perpendicular to the axial direction of the piston portion 200.

[0089] By sliding the cam 321 of the end gear of the transmission gear set 320 into the groove 231 of the piston part 200, the unidirectional rotational motion of the motor 310 is converted into the linear reciprocating motion of the piston part 200. This eliminates the complex transmission chain in the traditional crank-connecting rod mechanism, reduces the axial space ratio of the drive part 300, and facilitates the miniaturization of the overall structure. The force generated when the cam 321 slides along the groove 231 pushes the piston part 200 to move axially. Its stroke is controlled by the extension angle of the groove 231 and the gear speed, forming a short-stroke, high-frequency reciprocating mode. This can simulate the gradual liquid pumping characteristics of manual pressing, avoiding the situation where the pressure is insufficient to pump the cleaning liquid when the pump body is large-stroke, ensuring stable output of high-viscosity media such as detergent and shower gel. The continuous unidirectional rotation of the motor 310 can realize continuous piston reversal, simplifying the control logic and reducing start-stop shock. At the same time, the multi-stage reduction characteristics of the transmission gear set 320 adapt to the flow regulation requirements under different working conditions.

[0090] This utility model also provides a foaming system, including:

[0091] The mixing chamber has at least two inlets, one of which is connected to a waterway.

[0092] The liquid storage chamber is used to store cleaning fluid;

[0093] As described in any of the above, the liquid extraction component 10 has a liquid suction port 101 connected to the liquid storage chamber, and a liquid discharge port 102 connected to another inlet of the mixing chamber.

[0094] The piston 200, driven by the drive unit 300, reciprocates axially within the cylinder 100, causing the volumes of the first chamber 103 and the second chamber 104 at both ends of the piston to alternate. This utilizes the pressure difference between the chambers to achieve continuous and stable extraction of viscous liquids. Compared to passive extraction structures that rely on liquid weight or siphon effects, this embodiment actively controls the liquid suction and discharge processes through mechanical drive. This overcomes the problems of insufficient suction, uneven flow, and flow interruption caused by poor flowability in traditional siphon devices when extracting high-viscosity liquids. It is particularly suitable for the continuous and stable delivery of viscous cleaning liquids such as dishwashing liquid and shower gel. The suction and discharge actions are completed collaboratively within a single piston stroke, resulting in higher extraction efficiency. Simultaneously, the linear characteristics of the piston's reciprocating motion allow for precise control of the extraction volume by adjusting the stroke or frequency, avoiding supply fluctuations caused by liquid level changes or pipeline resistance in siphon structures. This ensures that the foaming system maintains a constant liquid mixing ratio under different operating conditions, thereby generating uniform and fine foam.

[0095] This utility model also provides a control method for the liquid-drawing component 10 of any of the foregoing claims, comprising:

[0096] S101: Obtain work instructions;

[0097] S102: Control the drive unit 300 of the liquid extraction component 10 to work according to the work instruction, so as to drive the piston unit 200 of the liquid extraction component 10 to reciprocate. At the same time, determine the amount of cleaning liquid required according to the work instruction.

[0098] S103: Real-time acquisition of motion parameters of piston section 200;

[0099] S104: Determine the amount of cleaning liquid extracted based on the acquired motion parameters;

[0100] S105: When the amount of cleaning liquid extracted reaches the required amount of cleaning liquid, the drive unit 300 of the liquid extraction component 10 is controlled to stop working.

[0101] Among them, the motion parameters include at least the number of movements of the piston section 200.

[0102] The control method provided in this embodiment monitors the motion parameters (such as the number of reciprocations) of the piston part 200 of the liquid pumping component 10 in real time. Since the volume of clean liquid delivered by the piston part 200 after each complete reciprocating motion is constant, the system can directly calculate the cumulative flow by accurately counting the number of motions. This completely avoids the nonlinear interference caused by changes in liquid viscosity on the load of the drive part 300, ensuring that the output of liquids of different concentrations is consistent under the same number of motions. The closed-loop comparison between the real-time acquired motion parameters and the preset required amount enables the system to terminate the drive immediately when the target value is reached. This is beneficial for providing the accuracy of liquid pumping measurement and ensuring the stability of the ratio of clean liquid to water in the mixing chamber, thereby generating uniform and stable foam.

[0103] At the same time, it determines the amount of cleaning liquid required according to the work instructions, and discharges the required amount of cleaning liquid through precise measurement. It is especially suitable for use scenarios with short single use time and relatively fixed liquid extraction volume, such as shampoo and shower gel required during bathing.

[0104] This utility model also provides a control method for the liquid-drawing component 10 of any of the foregoing claims, comprising:

[0105] S201: Obtain work instructions;

[0106] Determine the required discharge rate of the cleaning fluid according to the work instructions;

[0107] The motion parameters of the piston section 200 are determined based on the required discharge rate of the cleaning liquid;

[0108] Real-time acquisition of the motion parameters of piston section 200;

[0109] The operating parameters of the drive unit 300 are adjusted according to the real-time acquired motion parameters of the piston unit 200, so that the piston unit 200 can move with defined motion parameters.

[0110] Among them, the motion parameters include at least the motion speed of the piston section 200.

[0111] By acquiring the real-time movement speed parameters of the piston section 200 and dynamically adjusting the output of the drive section 300, the system precisely matches the cleaning fluid discharge speed with the water flow rate changes in the mixing chamber, achieving stable control of the liquid-water ratio. Based on the target discharge speed, the system reverse-calculates the required movement parameters of the piston section 200 (such as reciprocating frequency or stroke speed), eliminating flow rate deviations caused by differences in liquid viscosity or unstable power supply voltage, thus maintaining uniform foam cleaning fluid concentration by adjusting the movement of the piston section 200.

[0112] At the same time, the required discharge speed of the cleaning liquid is determined according to the work instructions, and the motion parameters of the piston 200 are determined according to the required discharge speed of the cleaning liquid. The cleaning liquid is discharged at the required speed through precise measurement. It is especially suitable for use scenarios with long single use time and the need for continuous flow of foam cleaning liquid, such as kitchen dishwashing and other scenarios that require continuous and stable liquid supply.

[0113] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0114] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A liquid extraction component for a foaming system, characterized in that, include: The cylinder body is provided with a liquid inlet that communicates with the liquid storage chamber of the foaming system and a liquid outlet that communicates with the mixing chamber of the foaming system. The piston is movably disposed within the cylinder and together with the cylinder forms a chamber that communicates with the suction port and the discharge port; A drive unit is connected to the piston unit, and the drive unit drives the piston unit to reciprocate along the axial direction of the cylinder unit; A valve body portion, disposed on the cylinder portion and / or the piston portion, is configured to control the connection or disconnection between the liquid storage chamber and the chamber. A detection element is disposed on the cylinder part and / or the piston part. The detection element is capable of detecting the motion parameters of the piston part and generating a feedback signal to control the operation of the drive part.

2. The liquid extraction component for the foaming system according to claim 1, characterized in that, The piston section has two axial ends that are respectively connected to the cylinder section to form a first chamber and a second chamber. The first chamber is connected to the suction port and the second chamber is connected to the discharge port. The valve body is configured to control the passage between the first chamber and the liquid storage chamber, and between the first chamber and the second chamber.

3. The liquid extraction component for the foaming system according to claim 2, characterized in that, The piston portion has a channel along its axial direction, one end of which communicates with the first chamber and the other end of which communicates with the second chamber.

4. The liquid extraction component for the foaming system according to claim 3, characterized in that, The piston part is an integrally formed structure and is constructed with a first plug, a second plug and a connecting rod. One end of the connecting rod is transitionally connected to the first plug and the other end is transitionally connected to the second plug. The first plug, the second plug and the connecting rod are all hollow structures and together define the channel. The outer peripheral walls of the first plug and the second plug are respectively provided with sealing rings.

5. The liquid extraction component for the foaming system according to claim 4, characterized in that, The cylinder section includes a first cylinder and a second cylinder that are arranged opposite to and spaced apart. The first plug is located in the first cylinder and surrounds the first chamber with the first cylinder. The second plug is located in the second cylinder and surrounds the second chamber with the second cylinder.

6. The liquid extraction component for a foaming system according to any one of claims 2 to 5, characterized in that, The valve body includes a first one-way valve and a second one-way valve. The first one-way valve is disposed inside the liquid suction port, and the second one-way valve is disposed on the piston part near the second chamber.

7. The liquid extraction component for the foaming system according to claim 6, characterized in that, The cylinder body is provided with a push rod at the location of the liquid suction port. The push rod is positioned opposite to the valve core of the second one-way valve, and the push rod is configured to push the valve core of the second one-way valve.

8. The liquid extraction component for a foaming system according to any one of claims 2 to 5, characterized in that, The suction port and the discharge port are located on two opposite end faces of the cylinder body in the axial direction. The cylinder block extends axially perpendicular to the horizontal plane.

9. The liquid extraction component for the foaming system according to claim 8, characterized in that, One end face of the cylinder body protrudes outward from the liquid inlet to form a liquid inlet, and the other end face protrudes outward from the liquid outlet to form a liquid outlet. The suction nozzle extends axially or is bent and / or the drain nozzle extends axially or is bent and / or the drain nozzle extends axially or the drain nozzle is bent and extended.

10. The liquid extraction component for a foaming system according to any one of claims 1 to 5, characterized in that, Also includes: The mounting housing assembly includes a first housing, a second housing, and a third housing, wherein the first housing is configured with a first cavity and a second cavity; The first cavity and the second housing are joined together axially to form a receiving space for accommodating the cylinder part and the piston part, and the second cavity and the third housing are joined together axially to form a receiving space for accommodating at least a portion of the drive part, wherein the opening of the first cavity is opposite in direction to the opening of the second cavity.

11. The liquid extraction component for a foaming system according to any one of claims 1 to 5, characterized in that, The drive unit includes: An electric motor with an output shaft; A transmission gear set is connected to the output shaft and the piston part. The end gear of the transmission gear set is provided with a protruding rod. The output shaft drives the transmission gear set to rotate, thereby rotating the protruding rod. The piston part is provided with a sliding groove structure, the extension direction of the sliding groove structure is at an angle to the axial direction of the piston part, the protruding rod is slidably engaged with the sliding groove structure, and the rotation of the protruding rod drives the piston part to move axially.

12. A foaming system, characterized in that, include: The mixing chamber has at least two inlets, one of which is connected to a waterway. The liquid storage chamber is used to store cleaning fluid; The liquid extraction component as described in any one of claims 1 to 11, wherein the liquid suction port of the liquid extraction component is connected to the liquid storage chamber, and the liquid discharge port of the liquid extraction component is connected to another inlet of the mixing chamber.

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