Liquid discharge device and method with controllable liquid output

Abstract

This invention relates to the field of nursing tool technology, specifically to a dispensing device and method with controllable dispensing volume. The dispensing device includes a housing, with a mounting frame fixedly installed inside the housing. A pumping component and a storage component, which are interconnected, are respectively installed at both ends of the housing. A drive component, which is pulsatorically connected to the pumping component, is fixedly installed inside the housing. A control component, which is electrically connected to the drive component, is fixedly installed on the mounting frame, and a power supply component, which is electrically connected to the control component, is also fixedly installed on the mounting frame. This application utilizes the control component to precisely control the dispensing volume of the drive component, which is beneficial for meeting the high precision requirements of dispensing volume. Furthermore, the dispensing method, which uses the pumping component for extraction and temporary storage, avoids the backflow of dispensed medication into the storage component during application, effectively ensuring that the dispensing device can conveniently, reliably, and accurately dispense quantitatively, thereby improving nursing efficiency and meeting the needs of precise and efficient nursing care.

Description

Technical Field

[0001] This invention relates to the field of nursing tools, specifically to a fluid dispensing device and method with controllable fluid dispensing volume. Background Technology

[0002] In scalp care, skin care, and many similar scenarios where medication needs to be applied evenly and precisely to the body, the way the liquid is delivered is crucial.

[0003] Currently, manual dispensing and motor-controlled dispensing are the two most common methods. Manual dispensing relies on direct human force applied to the dispensing tank, with the liquid output controlled by the pressure and frequency of the press. Motor-controlled dispensing uses a motor-driven mechanical structure to perform a rhythmic squeezing operation on the dispensing tank. Both methods can achieve a certain amount of liquid output to meet basic usage needs. However, in practical applications, the actual amount of medication needed varies from person to person due to differences in physical condition, the area being treated, and skin absorption capacity.

[0004] The current common method for dispensing fluid is to minimize the amount dispensed with each press, hoping to meet different dosage needs through frequent adjustments. However, from an efficiency standpoint, multiple presses are not only time-consuming but also cumbersome and time-consuming when dealing with large-area care needs, severely impacting overall care efficiency. Regarding precise control of the dispensing volume, uneven manual pressure and inherent limitations in the precision of motor control often lead to discrepancies between the actual and expected dispensing volumes, making it difficult to accurately match the individual's required dosage and failing to meet the urgent need for precise and efficient dispensing.

[0005] Furthermore, when using a press-to-dispense method, a negative pressure is created inside the dispensing tank as it rebounds after dispensing. This negative pressure can easily draw back the dispensed liquid, causing external contaminants and bacteria to enter the tank and contaminate the original solution.

[0006] Therefore, how to ensure convenient, reliable and accurate quantitative dispensing of fluid during the nursing process, thereby improving nursing efficiency and meeting the needs of precise and efficient nursing, is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0007] In order to improve nursing efficiency and meet the needs of precise and efficient nursing, and to ensure that the dispensing device can dispense fluid conveniently, reliably and accurately during the nursing process, this application provides a dispensing device and dispensing method with controllable dispensing volume.

[0008] The liquid discharge device and method with controllable liquid discharge rate provided in this application adopt the following technical solution:

[0009] In a first aspect, a liquid dispensing device with controllable dispensing volume includes a housing, an installation frame fixedly installed inside the housing, a pumping component fixedly installed on the housing near one end thereon, a drive component that is pulsatorically connected to the pumping component fixedly installed inside the housing, a control component that is electrically connected to the drive component fixedly installed on the installation frame, a power supply component that is electrically connected to the control component fixedly installed on the installation frame, and a liquid storage component installed on the housing at the end away from the pumping component, the liquid storage component being in communication with the pumping component.

[0010] By adopting the above technical solution, the control component can precisely control the liquid output of the drive component, which is beneficial to meeting the high precision requirements of the liquid output. Furthermore, by using the extraction component for extraction and temporary storage, it is possible to prevent the liquid on the human skin from flowing back into the storage component of the original liquid during the application of the liquid. This effectively ensures that the liquid dispensing device can dispense liquid conveniently, reliably, and accurately, which is beneficial to improving nursing efficiency and meeting the needs of precise and efficient nursing.

[0011] Furthermore, the pumping assembly includes a cylinder body, which is fixedly mounted on the housing. A piston body is slidably connected inside the sealed cylinder body. One end of the piston body facing the inside of the housing is connected to a drive assembly. A cylinder cover is sealed to the end of the cylinder body away from the drive assembly. Several evenly distributed first comb teeth are connected to the cylinder cover. A second comb tooth penetrating the cylinder cover is fixedly connected to the outside of the cylinder body. Each of the first comb teeth has a first liquid flow channel communicating with the inside of the cylinder body. A second liquid flow channel is formed on the second comb tooth. One end of the second liquid flow channel facing the inside of the housing is connected to the liquid storage assembly. A protective cover is detachably connected to the housing corresponding to the cylinder cover. A third liquid flow channel is provided inside the protective cover corresponding to both the first and second comb teeth. The third liquid flow channel can connect at least one of the first and second liquid flow channels.

[0012] By adopting the above technical solution, and utilizing the precise control of the drive component by the control component, the movement direction of the piston body is controlled. Furthermore, the protective cover cleverly connects or disconnects the second and first liquid flow channels via a third liquid flow channel, providing an orderly channel for liquid flow. On one hand, connecting the second and first liquid flow channels ensures a clear and stable path for the liquid during suction. On the other hand, disconnecting the second and first liquid flow channels allows the first liquid flow channels, which are evenly distributed on the first comb teeth and communicate with the inside of the cylinder, to flow out the liquid more evenly, avoiding excessively fast or slow local flow rates and improving the stability of the liquid output.

[0013] Furthermore, both the cylinder block and the cylinder head are made of transparent material, the cylinder head is provided with a raised transparent window, and the protective cover is provided with a positioning slot corresponding to the transparent window.

[0014] By adopting the above technical solution, the cylinder body 201 and cylinder cover 203, made of transparent material, allow the viewer to observe the liquid level inside the cylinder body 201 through the transparent viewing window. Furthermore, the design of the transparent viewing window and the positioning slot improves the accuracy of installing the protective cover. Operators can quickly and accurately install the protective cover, ensuring precise alignment of the third liquid flow channel with the second and first liquid flow channels, reducing the risk of poor liquid flow or leakage due to installation errors, and improving the efficiency and quality of equipment assembly.

[0015] Furthermore, the drive assembly includes a geared motor, which is electrically connected to the control assembly. The geared motor is fixedly installed inside the housing, and a screw is fixedly connected to the output shaft of the geared motor. A screw sleeve is fixedly connected to the piston body corresponding to the screw, and the screw sleeve and the screw are connected by a threaded transmission.

[0016] By adopting the above technical solution, utilizing the structure of the geared motor and screw drive, and with real-time monitoring and adjustment by the control component, this device can achieve relatively precise control of the liquid output. By precisely adjusting the speed of the geared motor, the movement speed and stroke of the piston can be precisely controlled, thereby achieving precise adjustment of the liquid output, which is beneficial for meeting high-precision liquid output requirements. Furthermore, the screw drive has good transmission smoothness and self-locking properties. Simultaneously, the screw drive between the screw and the screw sleeve smoothly converts the rotational motion of the geared motor into the linear motion of the piston, reducing impact and vibration during movement, making the piston's movement smoother, and thus ensuring the stability of the liquid pumping process, avoiding liquid flow fluctuations and damage to the device caused by unstable movement.

[0017] Furthermore, the control component includes a circuit board, which is fixedly mounted on the mounting bracket. A control module that is electrically connected to both the drive component and the power supply component is mounted on the circuit board. Several control keys that are electrically connected to the control module are mounted on the circuit board. Buttons are mounted on the side wall of the housing corresponding to the control keys, and the buttons are abutted against the control keys.

[0018] By adopting the above technical solution, users can perform various operations on the liquid dispensing device simply by operating the buttons on the side wall of the housing. This eliminates the need for complex operating procedures and additional equipment, lowering the operational threshold and improving convenience and efficiency, making it suitable for users of varying technical skill levels. The control module on the circuit board integrates the control functions of the entire liquid dispensing device, achieving centralized control of the drive and power components, resulting in more coordinated and unified control of the entire device. Through precise calculation of the liquid dispensing volume and fine adjustment of the drive components by the control module, accurate liquid dispensing volume control can be achieved, meeting the accuracy requirements of different application scenarios. For example, in industries such as chemical, pharmaceutical, and food processing, it allows for precise control of liquid addition, improving product quality and production efficiency.

[0019] Furthermore, a first limit switch is installed on the circuit board corresponding to the upper limit position of the driving component, a second limit switch is installed on the circuit board corresponding to the lower limit position of the driving component, a first indicator light corresponding to the first limit switch is installed on the circuit board, and a second indicator light corresponding to the second limit switch is installed on the circuit board.

[0020] By adopting the above technical solution and utilizing the first and second limit switches, reliable limit protection is provided for the movement range of the drive assembly. Precise control of the upper and lower limit positions of the piston body effectively prevents equipment damage caused by excessive piston movement, such as collisions between the piston body and the top or bottom of the cylinder, leading to cylinder breakage, piston damage, and other serious consequences. This extends the equipment's service life and reduces maintenance costs. The first and second indicator lights correspond to the first and second limit switches, providing operators with intuitive indications of the equipment's operating status. Operators do not need complex testing equipment or in-depth understanding of the equipment's internal operating mechanisms; simply by observing the indicator lights, they can quickly determine whether the piston body is approaching or has reached its limit position. This helps operators promptly grasp the equipment's operating status and prepare accordingly in advance, such as adjusting dispensing parameters or preparing for the next operation, improving the convenience and accuracy of operation.

[0021] Furthermore, the power supply assembly includes a battery fixedly mounted on the mounting bracket, the battery being electrically connected to the circuit board, a charging socket being mounted on the circuit board, a charging port being provided on the housing corresponding to the charging socket, and a dust cover being installed on the housing corresponding to the charging port.

[0022] By adopting the above technical solution and using a storage battery as a power source, the liquid dispensing device can operate independently of the external power grid, enhancing its flexibility and adaptability. In environments without external power, such as mobile operations or temporary work scenarios, the device can still operate normally, expanding its applicability and facilitating its use and operation. The charging base and charging port allow for convenient battery charging, avoiding the inconvenience and cost of frequent replacements of disposable batteries, while also being more environmentally friendly. Circuit board management of the charging process ensures safe and efficient battery charging, extending battery life and reducing equipment operating costs.

[0023] Furthermore, the liquid storage assembly includes a mounting base, which is fixedly connected to the housing. A first connecting pipe communicating with the second liquid flow channel is fixedly and sealed to one end of the mounting base facing the inside of the housing. A second connecting pipe is fixedly and sealed to one end of the mounting base away from the housing. The first connecting pipe communicates with the second connecting pipe. A liquid storage bottle fitted outside the second connecting pipe is threadedly and sealed to one end of the mounting base away from the housing. A gravity ball is fixedly connected to one end of the second connecting pipe away from the mounting base. A bottom shell connected to the housing is provided outside the liquid storage bottle.

[0024] By adopting the above technical solution, the liquid storage bottle is installed on the mounting base with a threaded sealing connection, which facilitates the installation and removal of the liquid storage bottle. When the liquid in the storage bottle is used up or needs to be replaced with a different liquid, the operator can easily unscrew the storage bottle to replace or replenish the liquid. The operation is simple and quick, improving work efficiency. The fixed connection between the mounting base and the housing, as well as the fixed support of the bottom shell for the liquid storage bottle, enhances the overall structural stability of the liquid storage assembly. During the operation of the device, even if subjected to certain vibrations or external forces, the liquid storage bottle can remain stable and will not easily shake or fall off, ensuring the safety of the liquid transportation process and reducing the risk of leakage due to loose parts.

[0025] Secondly, a liquid discharge method with controllable discharge volume includes the following steps:

[0026] S1. The liquid storage component in the liquid dispensing device described in the first aspect is used to store a sufficient amount of raw liquid for later use;

[0027] S2. Turn on the power supply component to supply power to the entire liquid dispensing device;

[0028] S3. Set the liquid output volume according to actual usage requirements;

[0029] S4. The control component transmits the liquid output information to the drive component. The drive component matches appropriate operating parameters according to the received information and drives the pumping component to operate in the forward direction. The pumping component starts to extract liquid from the storage component and temporarily stores the liquid in the pumping component.

[0030] S5. Disconnect the connection between the liquid storage component and the pumping component;

[0031] S6. The control component is used again to transmit the liquid output information to the drive component. The drive component matches the appropriate operating parameters according to the received information and drives the pumping component to run in reverse, so as to output the liquid temporarily stored in the pumping component.

[0032] By employing the above steps, the dispensing volume is preset, and the control component precisely controls the drive component to drive the pumping component to draw the liquid medicine from the storage component into and temporarily store it inside the pumping component. After opening the protective cover, the control component then precisely controls the drive component to drive the pumping component to output the liquid medicine from the pumping component. Opening the protective cover simultaneously and cleverly disconnects the connection between the storage component and the pumping component, avoiding the risk of external impurities potentially entering the storage component through the pumping component and contaminating the original liquid during the output process.

[0033] Furthermore, the operating parameters of the drive component include rotational speed, and the control component adjusts the liquid output of the pumping component by adjusting the rotational speed and operating time of the drive component.

[0034] Beneficial effects achieved:

[0035] This application utilizes the control component to precisely control the dispensing volume of the drive component, which helps to meet the high precision requirements of dispensing volume. Furthermore, by using the extraction component for extraction and temporary storage, it can prevent the medication on the skin from flowing back into the storage component containing the original solution during the application process. This effectively ensures that the dispensing device can dispense liquids conveniently, reliably, and accurately, which helps to improve nursing efficiency and meet the needs of precise and efficient nursing care. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of one embodiment of this application.

[0037] Figure 2 This is a structural exploded view of one embodiment of this application.

[0038] Figure 3 This is a schematic diagram of the internal structure of one embodiment of this application.

[0039] Figure 4 This is an exploded view of the extraction component in one embodiment of this application.

[0040] Figure 5 This is an exploded view of the structure of the control component in one embodiment of this application.

[0041] Figure 6 yes Figure 3 Enlarged schematic diagram of Part I of the structure.

[0042] Explanation of reference numerals in the attached drawings: 100, housing; 101, mounting bracket; 200, pumping assembly; 201, cylinder; 202, piston body; 203, cylinder head; 204, first comb tooth; 205, second comb tooth; 206, first fluid flow channel; 207, second fluid flow channel; 208, protective cover; 209, third fluid flow channel; 210, transparent window; 211, positioning slot; 212, inner cover; 213, sealing hole; 214, check valve; 215, pressure sensor; 300, drive assembly; 301, geared motor; 302, screw; 303, screw sleeve; 400, control assembly; 4 01. Circuit board; 402. Control key; 403. Button; 404. First limit switch; 405. Second limit switch; 406. First indicator light; 407. Second indicator light; 500. Power supply assembly; 501. Battery; 502. Charging base; 503. Charging port; 504. Dust cover; 505. First elastic contact; 506. First magnetic block; 507. Second elastic contact; 508. Second magnetic block; 600. Liquid storage assembly; 601. Mounting base; 602. First connecting pipe; 603. Second connecting pipe; 604. Liquid storage bottle; 605. Gravity ball; 606. Bottom shell. Detailed Implementation

[0043] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0044] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0046] This application discloses a liquid dispensing device and a liquid dispensing method with controllable liquid dispensing volume.

[0047] Example 1

[0048] Please refer to the above as well. Figures 1 to 6 In one embodiment of this application, a liquid dispensing device with controllable dispensing volume includes a housing 100, a mounting bracket 101 fixedly installed inside the housing 100, a pumping component 200 fixedly installed on the housing 100 near one end thereon, a drive component 300 that is drively connected to the pumping component 200 fixedly installed inside the housing 100, a control component 400 that is electrically connected to the drive component 300 fixedly installed on the mounting bracket 101, a power supply component 500 that is electrically connected to the control component 400 fixedly installed on the mounting bracket 101, and a liquid storage component 600 installed on the end of the housing 100 away from the pumping component 200, the liquid storage component 600 being in communication with the pumping component 200.

[0049] The implementation principle of the liquid dispensing device with controllable dispensing volume in this application embodiment is as follows:

[0050] The power supply unit 500 provides the necessary electrical energy to the entire dispensing device, ensuring the normal operation of all components within the device. The user can set the required dispensing volume through the control unit 400. Based on the user-input dispensing volume information and a pre-set algorithm, the control unit 400 generates a corresponding control signal. This control signal contains various parameters required to achieve the specified dispensing volume, such as the required rotational speed, torque, and operating time of the drive component 300. The control unit 400 transmits the generated control signal to the drive component 300, which then begins operation upon receiving the signal. The drive component 300 can be a motor, push rod, or other power device, which drives the pumping component 200 through a transmission connection. The pumping unit 200 starts operating in the forward direction, drawing liquid from the liquid storage unit 600 and temporarily storing the original liquid in the liquid storage unit 600 in the pumping unit 200. Then, the connection between the liquid storage unit 600 and the pumping unit 200 is disconnected, and the pumping unit 200 is controlled to start operating in the reverse direction, thereby delivering the temporarily stored liquid in the pumping unit 200 to the nursing area.

[0051] Please refer to the above as well. Figures 1 to 6In one embodiment of this application, the pumping assembly 200 includes a cylinder 201, which is fixedly mounted on the housing 100. A piston 202 is slidably connected to the sealed interior of the cylinder 201. One end of the piston 202 facing the interior of the housing 100 is connected to the drive assembly 300. A cylinder head 203 is sealed to the end of the cylinder 201 away from the drive assembly 300. A plurality of evenly distributed first comb teeth 204 are connected to the cylinder head 203. Second comb teeth 205 penetrating the cylinder head 203 are fixedly connected to the outer side of the cylinder 201. Each of the 04 has a first liquid flow channel 206 that communicates with the inside of the cylinder 201. The second comb tooth 205 has a second liquid flow channel 207. One end of the second liquid flow channel 207 facing the inside of the housing 100 communicates with the liquid storage component 600. A protective cover 208 is detachably connected to the housing 100 corresponding to the cylinder cover 203. The protective cover 208 has a third liquid flow channel 209 inside that corresponds to the first comb tooth 204 and the second comb tooth 205. The third liquid flow channel 209 can connect at least one of the first liquid flow channel 206 and the second liquid flow channel 207.

[0052] During operation, the control component 400 transmits the generated control signal to the drive component 300, which drives the piston 202 to move linearly within the cylinder 201. When the piston 202 moves away from the cylinder head 203 (referred to as the piston's intake stroke), the internal volume of the cylinder 201 increases, creating a negative pressure. Under the influence of this pressure difference, liquid in the liquid storage component 600 flows into the cylinder 201 through the second liquid flow channel 207, the third liquid flow channel 209, and the first liquid flow channel 206, thus achieving liquid intake and storage. When liquid needs to be discharged, the protective cover 208 is removed, disconnecting the first liquid flow channel 206 and the second liquid flow channel 207. At this time, the drive component 300 is then controlled to drive the piston 202 towards the cylinder head 203 (referred to as the piston's discharge stroke). The internal volume of the cylinder 201 decreases, the liquid is compressed, and the pressure increases. Due to the pushing action of the piston 202, the liquid in the cylinder 201 is forced towards the cylinder head 203. The liquid inside the cylinder 201 will flow out from the first liquid flow channel 206 provided on the first comb tooth 204 on the cylinder head 203, and the amount of liquid discharged is controlled by the amount of liquid sucked in, and the speed of liquid discharge can be controlled by controlling the running speed of the drive component 300.

[0053] Please refer to the above as well. Figures 1 to 6 In one specific embodiment of this application, both the cylinder block 201 and the cylinder head 203 are made of transparent material. The cylinder head 203 is provided with a raised transparent window 210 by an integral molding process, and the protective cover 208 is provided with a positioning slot 211 corresponding to the transparent window 210.

[0054] During operation, the protective cover 208 is aligned with the cylinder head 203, and then the positioning slot 211 on the protective cover 208 is aligned with the transparent window 210 on the cylinder head 203. The transparent window 210 is inserted into the positioning slot 211. Due to the precise shape and size fit between the two, the protective cover 208 can be accurately installed on the cylinder head 203, ensuring that the third fluid flow channel 209 inside the protective cover 208 is accurately aligned with the first comb tooth 204 on the cylinder head 203 and the second fluid flow channel 207 and first fluid flow channel 206 on the second comb tooth 205 on the outer side of the cylinder body 201. Furthermore, the fluid level inside the cylinder body 201 can be directly observed through the transparent window 210.

[0055] In one specific embodiment of this application, the cylinder body 201 is made of polyethylene (PE), which has good transparency and chemical stability, and has a certain barrier to moisture and gas, thus protecting the drug from the influence of the external environment; the cylinder cover 203 is made of polypropylene (PP), which has good transparency, chemical resistance and water resistance.

[0056] Please refer to the above as well. Figures 1 to 6 In one specific embodiment of this application, the drive assembly 300 includes a geared motor 301, which is electrically connected to the control assembly 400. The geared motor 301 is fixedly installed inside the housing 100. A screw 302 is fixedly connected to the output shaft of the geared motor 301. A screw sleeve 303 is fixedly connected to the piston body 202 corresponding to the screw 302. The screw sleeve 303 and the screw 302 are connected by a threaded transmission.

[0057] During operation, the control component 400 transmits control signals to the geared motor 301, initiating its operation. The geared motor 301 is the core component of the drive component 300, converting electrical energy into mechanical energy and outputting rotational motion through its output shaft. A screw 302 is fixedly connected to the output shaft of the geared motor 301; when the geared motor 301 rotates, the screw 302 rotates accordingly. A screw sleeve 303 on the piston body 202 is connected to the screw 302 via a threaded drive. According to the principle of threaded drive, when the screw 302 rotates, the screw sleeve 303 moves linearly along the axial direction of the screw 302. Since the screw sleeve 303 is fixedly connected to the piston body 202, the piston body 202 also moves along with the screw sleeve 303.

[0058] It is understood that in other embodiments of this application, the transmission structure of the geared motor 301 and the screw sleeve 303 and the screw 302 can also be replaced by an electric push rod, a linear motor, etc., thereby driving the piston body 202 to perform reciprocating linear motion.

[0059] Please refer to the above as well. Figures 1 to 6In one specific embodiment of this application, the control component 400 includes a circuit board 401, which is fixedly mounted on the mounting bracket 101. A control module that is electrically connected to both the drive component 300 and the power supply component 500 is mounted on the circuit board 401. A plurality of control keys 402 that are electrically connected to the control module are mounted on the circuit board 401. A button 403 is mounted on the side wall of the housing 100 corresponding to the control key 402, and the button 403 is abutted against the control key 402.

[0060] During operation, the user presses button 403 on the side wall of housing 100, which applies pressure to control key 402. Control key 402 converts the physical pressure signal into an electrical signal and transmits it to the control module on circuit board 401. The user can perform different operations using different combinations of buttons 403 and control keys 402, such as starting liquid dispensing, stopping liquid dispensing, setting the dispensing volume, and adjusting the dispensing speed. Each control key 402 corresponds to a specific function; the user's operation triggers the control key 402 via button 403, sending the corresponding operation command as an electrical signal to the control module. Upon receiving the electrical signal from the user's operation, the control module processes it according to its internally stored programs and algorithms.

[0061] For dispensing volume control, the user can input the desired dispensing volume using a specific combination of button 403 and control key 402. The control module parses and processes the received dispensing volume information, and calculates the required operating parameters of the drive component 300 to achieve the desired dispensing volume based on the pre-stored relationship between the dispensing volume and the operating parameters of the drive component 300 (such as the speed and running time of the geared motor 301 in the drive component 300).

[0062] The control module converts the generated operating parameters of the drive component 300 into corresponding control signals and transmits them to the drive component 300. Upon receiving the control signals, the geared motor 301 in the drive component 300 adjusts its operating state, such as speed and running time, according to the requirements of the control signals. The output shaft of the geared motor 301 drives the screw 302 to rotate, and the screw 302, through threaded transmission, drives the piston 202 to move linearly within the cylinder 201. During the movement of the piston 202, the liquid is drawn in and discharged.

[0063] Furthermore, the control module monitors the operating status of the drive component 300 in real time, such as receiving feedback signals from the geared motor 301, including but not limited to information on speed, current, and torque. Simultaneously, based on the motion state of the piston body 202 (which can be indirectly obtained by monitoring the operating status of the geared motor 301) and the size information of the cylinder body 201, the control module can calculate the current liquid output. It compares the current liquid output with the user-set liquid output, and based on the comparison result, the control module adjusts the control signals sent to the drive component 300 to regulate the liquid output. If the current liquid output is less than the set liquid output, the control module will increase the workload of the drive component 300 (e.g., increase the speed of the geared motor 301); if the current liquid output is greater than the set liquid output, it will decrease the workload of the drive component 300, gradually bringing the actual liquid output closer to the set liquid output.

[0064] Please refer to the above as well. Figures 1 to 6 In one embodiment of this application, a first limit switch 404 is installed on the circuit board 401 at the upper limit position corresponding to the drive component 300, a second limit switch 405 is installed on the circuit board 401 at the lower limit position corresponding to the drive component 300, a first indicator light 406 corresponding to the first limit switch 404 is installed on the circuit board 401, and a second indicator light 407 corresponding to the second limit switch 405 is installed on the circuit board 401.

[0065] During operation, when the screw 302 in the drive assembly 300 drives the piston body 202 to move up and down in the cylinder 201, the piston body 202 will move along the axial direction of the screw 302 with the screw sleeve 303.

[0066] When the piston 202 moves upward and approaches its upper limit position, it triggers the first limit switch 404, which corresponds to the upper limit position, mounted on the circuit board 401. Upon triggering, the first limit switch 404 immediately sends an electrical signal to the control module on the circuit board 401. Upon receiving this signal, the control module takes corresponding measures according to preset program instructions, such as stopping the operation of the geared motor 301, to prevent the piston 202 from exceeding its upper limit position and causing equipment damage.

[0067] Similarly, when the piston 202 moves downwards and approaches its lower limit position, it will trigger the second limit switch 405. The second limit switch 405 sends a signal to the control module. After receiving the signal, the control module will also react according to the preset program, such as stopping the operation of the reduction motor 301 to prevent the piston 202 from moving downwards excessively and causing a malfunction.

[0068] When the first limit switch 404 is triggered, in addition to the corresponding action of the control module, the corresponding first indicator light 406 will illuminate. The purpose of the first indicator light 406 illuminating is to visually show the operator that the piston 202 has reached its upper limit position. The piston 202 reaching its upper limit position indicates that there is no liquid temporarily stored inside the cylinder 201, and liquid needs to be drawn from the liquid storage component 600 to dispense liquid. When the second limit switch 405 is triggered, the corresponding second indicator light 407 illuminates, informing the operator that the piston 202 has reached its lower limit position. The piston 202 reaching its lower limit position indicates that the cylinder 201 is temporarily full of liquid, and the protective cover 208 can be opened directly for dispensing liquid.

[0069] Please refer to the above as well. Figures 1 to 6 In one specific embodiment of this application, an inner cover 212 is fixedly installed inside the protective cover 208. The inner cover 212 is made of an elastic material with sealing properties, such as rubber or silicone. Sealing holes 213 are provided on the inner cover 212 corresponding to the first comb tooth 204 on the cylinder head 203 and the second comb tooth 205 on the outer side of the cylinder body 201 and penetrating the cylinder head 203. The first comb tooth 204 and the second comb tooth 205 are sealed and inserted into the sealing holes 213. A third liquid flow channel 209 is provided on the inner cover 212, and one end of the third liquid flow channel 209 is connected to at least one corresponding to the first comb tooth 204. The sealing hole 213 is connected to the sealing hole 213 corresponding to the second comb tooth 205. A check plate 214 is provided between the sealing hole 213 corresponding to the second comb tooth 205 and the third liquid flow channel 209. One end of the check plate 214 is fixedly connected to the inner cover 212 at the top of the sealing hole 213 corresponding to the second comb tooth 205. The end of the check plate 214 away from the sealing hole 213 extends into the third liquid flow channel 209. A pressure sensor 215 is fixedly and sealed inside the third liquid flow channel 209. The pressure sensor 215 is electrically connected to the control component 400.

[0070] During operation, when the comb teeth on the outer side of the cylinder head 203 and cylinder body 201 are inserted into the sealing hole 213, the elastic inner cover 212 will fit tightly against the comb teeth, using the elastic deformation of the material to fill the tiny gap between the comb teeth and the sealing hole 213, thereby achieving a sealing effect, preventing liquid leakage at the connection between the comb teeth and the sealing hole 213, and ensuring the sealing of the liquid flow channel.

[0071] When liquid flows from the liquid storage component 600 to the cylinder 201 (i.e., during the liquid intake process), the liquid pressure pushes the check valve 214 to open, allowing the liquid to pass through. When the liquid in the cylinder 201 tends to flow back, the liquid pressure will cause the check valve 214 to close, preventing the liquid from flowing back from the cylinder 201 through the second comb tooth 205 and the third liquid flow channel 209 to the liquid storage component 600. This ensures that the liquid can only flow in one direction, avoids backflow, and ensures the normal operation sequence and safety of the liquid dispensing device.

[0072] As the liquid flows through the third liquid flow channel 209, the pressure sensor 215 monitors the pressure of the liquid within the channel in real time. It transmits the monitored pressure data to the control component 400 in the form of an electrical signal. Based on the received pressure signal, the control component 400 can understand the current pressure status of the liquid flow. For example, if the pressure is too low during liquid intake, it may indicate insufficient liquid or a risk of blockage in the liquid storage component 600. If liquid is discharged due to operational error when closing the protective cover, the liquid entering the third liquid flow channel 209 will increase the pressure in the third liquid flow channel 209. Upon receiving an excessively high pressure signal, the control component 400 can automatically stop the drive component 300 from discharging liquid through a programmed setting. This ensures the stability and reliability of the entire liquid dispensing device, reduces the risk of liquid leakage and backflow, and allows for timely monitoring and handling of abnormal situations, ensuring the stability and predictability of the liquid dispensing process and helping to extend the service life of the equipment.

[0073] Please refer to the above as well. Figures 1 to 6 In one specific embodiment of this application, the power supply assembly 500 includes a battery 501 fixedly mounted on a mounting bracket 101. The battery 501 is electrically connected to a circuit board 401. A charging socket 502 is mounted on the circuit board 401, and a charging port 503 is provided on the housing 100 corresponding to the charging socket 502.

[0074] During operation, the storage battery 501, as the core component of the power supply assembly 500, stores electrical energy and provides power support for the entire liquid dispensing device. When the liquid dispensing device needs to operate, the storage battery 501 transmits the stored electrical energy to the circuit board 401, enabling the control module, limit switches, indicator lights, and other components on the circuit board 401 to operate normally, thereby driving the drive assembly 300 to work and realize the pumping and control of the liquid.

[0075] The storage battery 501 provides a stable DC power supply to the entire system, ensuring that the liquid dispensing device can operate normally for a certain period of time even if the external power is cut off, thus enhancing the independence and flexibility of the equipment. When the storage battery 501 is low on power, it can be charged via the charging socket 502. The charging socket 502 is mounted on the circuit board 401 and electrically connected to the storage battery 501. The external power supply is connected to the charging socket 502 through the charging port 503 on the housing 100.

[0076] When the plug of the charging device is inserted into the charging port 503, power is transferred to the battery 501 through the charging socket 502, thereby charging the battery 501. During the charging process, the control module on the circuit board 401 can manage and monitor the charging process to ensure the safety and effectiveness of charging, such as preventing overcharging and controlling the charging current and voltage, so as to extend the service life of the battery 501.

[0077] Please refer to the above as well. Figures 1 to 6 In one specific embodiment of this application, to prevent dust, impurities, etc. from entering the charging port 503, a dust cover 504 is installed on the housing 100 at the position corresponding to the charging port 503. When not charging, the dust cover 504 covers the charging port 503, providing physical protection and preventing external impurities such as dust and moisture from entering the charging port 503. This prevents the charging base 502 from being affected by problems such as dust accumulation or short circuits, thus ensuring the normal operation of the device and its safety.

[0078] Please refer to the above as well. Figures 1 to 6 In one specific embodiment of this application, the liquid storage assembly 600 includes a mounting base 601, which is fixedly connected to the housing 100. A first connecting pipe 602, which communicates with the second liquid flow channel 207, is fixedly and sealed to one end of the mounting base 601 facing the inside of the housing 100. A second connecting pipe 603 is fixedly and sealed to one end of the mounting base 601 away from the housing 100. The first connecting pipe 602 communicates with the second connecting pipe 603. A liquid storage bottle 604, which is fitted outside the second connecting pipe 603, is threaded and sealed to one end of the mounting base 601 away from the housing 100. A gravity ball 605 is fixedly connected to one end of the second connecting pipe 603 away from the mounting base 601. A bottom shell 606 connected to the housing 100 is provided outside the liquid storage bottle 604.

[0079] During operation, the liquid storage assembly 600 is primarily responsible for storing the liquid to be extracted. The liquid storage bottle 604 is connected to the mounting base 601 via a threaded seal and is fitted over the second connecting pipe 603, forming a sealed liquid storage space. The liquid is stored inside the liquid storage bottle 604.

[0080] The first connecting pipe 602 and the second connecting pipe 603 are interconnected, and the first connecting pipe 602 is connected to the second liquid flow channel 207 on the second comb tooth 205 on the outer side of the cylinder 201. Thus, when the pumping assembly 200 is working, a pressure change occurs within the cylinder 201 under the action of the piston 202, allowing the liquid in the storage bottle 604 to enter the cylinder 201 through the second connecting pipe 603, the first connecting pipe 602, and then through the second liquid flow channel 207, thereby achieving liquid extraction.

[0081] Furthermore, a gravity ball 605 is fixedly connected to the end of the second connecting pipe 603 furthest from the mounting base 601. During the placement or use of the liquid storage bottle 604, regardless of the angle of the bottle, the gravity ball 605 will always remain in a lower position due to gravity, ensuring that the port of the second connecting pipe 603 is submerged in the liquid. This ensures that even if the liquid level in the storage bottle 604 gradually decreases during the pumping process, liquid can still be pumped continuously and effectively until the liquid in the storage bottle 604 is exhausted.

[0082] Please refer to the above as well. Figures 1 to 6 In one specific embodiment of this application, the charging port 503 has at least two first elastic contacts 505 fixedly mounted on the mounting base 601. The first elastic contacts 505 are electrically connected to the charging base 502. The outer side of the first elastic contacts 505 is provided with a first magnetic block 506 fixedly mounted on the mounting base 601. The plug of the charging device is provided with a second elastic contact 507 corresponding to the first elastic contacts 505. The outer side of the second elastic contacts 507 is provided with a second magnetic block 508 fixedly mounted on the plug of the charging device. The second magnetic block 508 corresponds to the first magnetic block 506.

[0083] In one specific embodiment of this application, both the second magnetic block 508 and the first magnetic block 506 are made of permanent magnet material.

[0084] During operation, when the plug of the charging device approaches the charging port 503, the first magnetic block 506 and the second magnetic block 508 attract each other. Due to their correspondence, this magnetic force allows the plug to be accurately aligned with the charging port 503, assisting the operator in inserting the plug. Even in low light or limited operating space, the magnetic guiding effect helps the plug more easily connect to the charging port 503, reducing the difficulty and error of connection. As the plug is inserted into the charging port 503, the first elastic contact 505 and the second elastic contact 507 gradually approach each other. When the plug is fully inserted, the first elastic contact 505 and the second elastic contact 507 come into contact and achieve a conductive connection. Because the first elastic contact 505 is conductively connected to the charging base 502, the electrical energy from the external charging device can be transferred to the charging base 502 through the second elastic contact 507 and the first elastic contact 505, thereby charging the battery 501.

[0085] Example 2

[0086] In one embodiment of this application, a liquid dispensing method with controllable dispensing volume includes the following steps:

[0087] S1. The liquid storage component 600 in the liquid dispensing device described in Example 1 stores a sufficient amount of raw liquid for later use; the liquid storage bottle 604 is connected to the mounting base 601 by a threaded seal and is connected by a first connecting pipe 602 and a second connecting pipe 603, providing a sealed and stable storage space for the raw liquid and ensuring the safe storage of the raw liquid before use.

[0088] S2. Turn on the power supply component 500 to supply power to the entire liquid dispensing device; the battery 501 in the power supply component 500 provides power to the circuit board 401 and other components, enabling the control component 400, drive component 300 and pumping component 200 to work normally.

[0089] S3. Set the liquid output volume according to actual usage requirements; the user inputs the required liquid output volume through the control key 402 and button 403 of the control component 400, and the control module of the control component 400 processes the received information to provide a basis for the subsequent control drive component 300.

[0090] S4. The control component 400 transmits the liquid output information to the drive component 300. The drive component 300 matches appropriate operating parameters according to the received information and drives the pumping component 200 to operate in the forward direction. The pumping component 200 begins to extract liquid from the storage component 600 and temporarily stores the liquid in the pumping component 200. The geared motor 301 in the drive component 300 operates according to the received control signal, and drives the piston body 202 to move in the cylinder 201 through the threaded transmission of the screw 302 and the screw sleeve 303. When the piston body 202 moves away from the cylinder head 203, a negative pressure is formed in the cylinder 201. Under the action of the pressure difference, the liquid in the storage component 600 flows into the cylinder 201 through the second liquid flow channel 207, the third liquid flow channel 209 and the first liquid flow channel 206, realizing the extraction and temporary storage of liquid.

[0091] S5. Disconnect the connection between the liquid storage component 600 and the pumping component 200 to prevent liquid from flowing back into the liquid storage component 600 and to ensure that the amount of temporarily stored liquid will not change due to subsequent operations.

[0092] S6. The control component 400 transmits the liquid output information to the drive component 300 again. The drive component 300 matches appropriate operating parameters according to the received information and drives the pumping component 200 to operate in reverse, outputting the liquid temporarily stored in the pumping component 200. The pumping component 200 is driven to operate in reverse. At this time, the piston 202 moves in reverse, the volume inside the cylinder 201 decreases, the pressure increases, and the liquid temporarily stored in the cylinder 201 is discharged through the first liquid flow channel 206 under pressure, realizing the liquid output.

[0093] During operation, the liquid output is preset, and the control component 400 precisely controls the drive component 300 to drive the pumping component 200 to draw the liquid from the storage component 600 into and temporarily store it inside the pumping component 200. After the protective cover 208 is opened, the control component 400 again precisely controls the drive component 300 to drive the pumping component 200 to output the liquid. Opening the protective cover 208 simultaneously disconnects the connection between the storage component 600 and the pumping component 200, preventing the risk of external impurities contaminating the original liquid by entering the storage component 600 through the pumping component 200 during the output process.

[0094] Furthermore, the operating parameters of the drive component 300 include rotational speed, and the control component 400 adjusts the output volume of the pumping component 200 by adjusting the rotational speed and operating time of the drive component 300.

[0095] During operation, the rotational speed of the geared motor 301 in the drive assembly 300 directly affects the movement speed of the piston 202 in the pumping assembly 200. During the piston's intake stroke, a faster movement speed creates a greater negative pressure within the cylinder 201, allowing for faster extraction of more liquid from the storage assembly 600. During the discharge stroke, a faster speed expels the liquid more quickly, thus increasing the output volume per unit time. Conversely, reducing the rotational speed of the geared motor 301 reduces the output volume per unit time.

[0096] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A liquid dispensing device with controllable dispensing volume, characterized in that, The device includes a housing (100), inside which a mounting bracket (101) is fixedly installed. A pumping assembly (200) is fixedly installed on the housing (100) near one end. A drive assembly (300) connected to the pumping assembly (200) is fixedly installed inside the housing (100). A control assembly (400) electrically connected to the drive assembly (300) is fixedly installed on the mounting bracket (101). A power supply assembly (500) electrically connected to the control assembly (400) is fixedly installed on the mounting bracket (101). A liquid storage unit is installed on the end of the housing (100) away from the pumping assembly (200). The liquid storage assembly (600) is connected to the pumping assembly (200); the pumping assembly (200) includes a cylinder (201), which is fixedly mounted on the housing (100). A piston (202) is slidably connected inside the sealed interior of the cylinder (201). One end of the piston (202) facing the interior of the housing (100) is connected to the drive assembly (300). A cylinder cover (203) is sealed to the end of the cylinder (201) away from the drive assembly (300). Several evenly distributed first comb teeth (204) are connected to the cylinder cover (203). The outer side of the cylinder (201) A second comb tooth (205) is fixedly connected through the cylinder head (203). The first comb tooth (204) is provided with a first liquid flow channel (206) communicating with the inside of the cylinder body (201). The second comb tooth (205) is provided with a second liquid flow channel (207). One end of the second liquid flow channel (207) facing the inside of the housing (100) is connected to the liquid storage component (600). A protective cover (208) is detachably connected to the housing (100) corresponding to the cylinder head (203). The protective cover (208) is provided with a third liquid flow channel inside both the first comb tooth (204) and the second comb tooth (205). (209) The third liquid flow channel (209) can connect at least one of the first liquid flow channel (206) and the second liquid flow channel (207); The drive assembly (300) includes a geared motor (301), the geared motor (301) is electrically connected to the control assembly (400), the geared motor (301) is fixedly installed inside the housing (100), a screw (302) is fixedly connected to the output shaft of the geared motor (301), a screw sleeve (303) is fixedly connected to the piston body (202) corresponding to the screw (302), and the screw sleeve (303) is connected to the screw (302) by threaded transmission.

2. The liquid dispensing device with controllable liquid dispensing volume according to claim 1, characterized in that: Both the cylinder body (201) and the cylinder head (203) are made of transparent material. The cylinder head (203) is provided with a raised transparent window (210), and the protective cover (208) is provided with a positioning slot (211) corresponding to the transparent window (210).

3. The liquid dispensing device with controllable liquid output according to claim 1, characterized in that: The control component (400) includes a circuit board (401), which is fixedly mounted on the mounting bracket (101). A control module that is electrically connected to both the drive component (300) and the power supply component (500) is mounted on the circuit board (401). A plurality of control keys (402) that are electrically connected to the control module are mounted on the circuit board (401). A button (403) is mounted on the side wall of the housing (100) corresponding to the control key (402), and the button (403) is abutted against the control key (402).

4. The liquid dispensing device with controllable liquid dispensing volume according to claim 3, characterized in that: A first limit switch (404) is installed on the circuit board (401) at the upper limit position corresponding to the drive assembly (300), a second limit switch (405) is installed on the circuit board (401) at the lower limit position corresponding to the drive assembly (300), a first indicator light (406) corresponding to the first limit switch (404) is installed on the circuit board (401), and a second indicator light (407) corresponding to the second limit switch (405) is installed on the circuit board (401).

5. The liquid dispensing device with controllable liquid output according to claim 3, characterized in that: The power supply assembly (500) includes a battery (501) fixedly mounted on the mounting bracket (101). The battery (501) is electrically connected to the circuit board (401). A charging socket (502) is mounted on the circuit board (401). A charging port (503) is provided on the housing (100) corresponding to the charging socket (502). A dust cover (504) is installed on the housing (100) corresponding to the charging port (503).

6. The liquid dispensing device with controllable liquid output according to claim 1, characterized in that: The liquid storage assembly (600) includes a mounting base (601), which is fixedly connected to the housing (100). A first connecting pipe (602) communicating with the second liquid flow channel (207) is fixedly and sealed to one end of the mounting base (601) facing the inside of the housing (100). A second connecting pipe (603) is fixedly and sealed to one end of the mounting base (601) away from the housing (100). The first connecting pipe (602) and the second connecting pipe (603) communicate with each other. A liquid storage bottle (604) fitted outside the second connecting pipe (603) is threaded and sealed to one end of the mounting base (601) away from the housing (100). A gravity ball (605) is fixedly connected to one end of the second connecting pipe (603) away from the mounting base (601). A bottom shell (606) connected to the housing (100) is provided outside the liquid storage bottle (604).

7. A liquid dispensing method with controllable dispensing volume, characterized in that, Includes the following steps: S1. The liquid storage component (600) in the liquid dispensing device according to claim 1 is used to store a sufficient amount of raw liquid for later use; S2. Turn on the power supply component (500) to supply power to the entire liquid dispensing device; S3. Set the liquid output volume according to actual usage requirements; S4. The control component (400) transmits the liquid output information to the drive component (300). The drive component (300) matches appropriate operating parameters according to the received information and drives the pumping component (200) to operate in the forward direction. The pumping component (200) starts to extract liquid from the liquid storage component (600) and temporarily stores the liquid in the pumping component (200). S5. Disconnect the connection between the liquid storage component (600) and the pumping component (200); S6. The control component (400) is used again to transmit the liquid output information to the drive component (300). The drive component (300) matches appropriate operating parameters according to the received information and drives the pumping component (200) to run in reverse, so as to output the liquid temporarily stored in the pumping component (200).

8. The liquid dispensing method with controllable dispensing volume according to claim 7, characterized in that: The operating parameters of the drive component (300) include rotational speed and operating time. The control component (400) adjusts the output volume of the pumping component (200) by adjusting the rotational speed and operating time of the drive component (300).

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