Liquid split charging device

Abstract

The utility model discloses a liquid split charging device, and relates to the technical field of biopharmaceutical equipment. The utility model comprises a shell, wherein the shell is made of ABS (Acrylonitrile Butadiene Styrene) plastic; the front side of the shell is fixedly connected with a human-computer interaction interface, and the front side of the shell is fixedly connected with an emergency stop button. By means of high automation and intelligence, manual intervention is reduced, the production speed is increased, meanwhile, high quality of each time of split charging is guaranteed, the rate of defective products is reduced, downtime and labor cost are reduced due to rapid pipeline replacement and simple and convenient maintenance, the risk of cross contamination is reduced due to disposable components, indirect cost such as cleaning and verification is reduced, and the production efficiency is improved. The device has the capability of quickly adapting to different sub-packaging requirements, so that enterprises can quickly respond to market demand changes, the marketing cycle of new products is shortened, and built-in safety mechanisms such as a scram button and buzzer early warning and the design strictly following industry standards are adopted, so that the production safety is ensured, and the international authentication and regulation requirements are met.

Description

Technical Field

[0001] This utility model belongs to the field of biopharmaceutical equipment technology, and in particular relates to a liquid dispensing device. Background Technology

[0002] Desktop liquid dispensing systems belong to the category of biopharmaceutical and scientific research equipment. This technology primarily serves the fields of biopharmaceuticals, chemical synthesis, and research laboratories, specifically involving fluid control technology, automation engineering technology, and biopharmaceutical processing technology. Desktop liquid dispensing systems are mainly used for the precise measurement and dispensing of high-purity, highly sensitive liquids, such as cell culture media. They can efficiently and accurately dispense various liquids into bottles, bags, and other containers to meet subsequent experimental research or production processing needs.

[0003] With the rapid development of biotechnology and the continuous expansion of the pharmaceutical industry, the requirements for drug quality control, production efficiency, and cost control are increasing. Traditional manual dispensing methods are not only time-consuming and labor-intensive, but also difficult to guarantee dispensing accuracy and aseptic conditions, easily leading to batch-to-batch variations and affecting product quality. Therefore, desktop liquid dispensing systems have emerged, utilizing modern sensing technology, precision mechanical design, and automated control software to achieve rapid and accurate dispensing of liquids from small to medium batches.

[0004] Problems with existing technologies: 1. Precision limitations: Existing dispensing systems lack sufficient precision, especially in repeatability control during continuous operation. 2. Compatibility and flexibility: Different types of liquids have varying adaptability requirements for dispensing equipment. Existing systems often perform poorly when handling special liquids or require frequent replacement of parts and parameter adjustments. 3. Cost and maintenance: High-performance dispensing equipment is expensive and complex to maintain, posing a significant burden for small and medium-sized enterprises or laboratories. Furthermore, the system's intelligence and user-friendliness need improvement to reduce operational difficulty and training costs. 4. Data management and integration: The lack of effective data management and system integration solutions affects the continuity of production efficiency analysis and quality control. 5. Asepticness and cleanliness: Aseptic operation is crucial in the pharmaceutical and biotechnology fields. While existing systems take measures to maintain a sterile environment, risks to aseptic assurance remain under long-term operation or complex processes. Utility Model Content

[0005] The purpose of this invention is to provide a liquid dispensing device.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a liquid dispensing device, including a shell, which is made of ABS plastic.

[0008] A human-machine interface is fixedly connected to the front side of the housing. An emergency stop button and a buzzer are fixedly connected to the front side of the housing. A peristaltic pump is fixedly connected to the left side of the housing. A first and second pinch valves are fixedly connected to the front side of the housing. A third pinch valve is fixedly connected to the top surface of the housing. Two multi-way valves are fixedly connected to the right side of the housing. A pipeline flow sensor is fixedly connected to the front of the housing. A pipeline pressure transmitter is fixedly connected to the left side of the housing.

[0009] Furthermore, an interface assembly is provided on the rear side of the housing, a label printer is fixedly connected to the top surface of the housing, a disposable assembly pipeline is provided on the right side of the housing, a pipeline sorting comb is fixedly connected to the right side of the housing, a heat dissipation groove is provided on the rear side of the housing, an embedded groove is provided on the top surface of the housing, and a printer interface is provided on the inner wall of the embedded groove.

[0010] Furthermore, the interface combination includes an Auxpump interface located on the back of the housing; an input1 interface, an input2 interface, and an input3 interface are located on the back of the ABS plastic housing; an output1 interface, an output2 interface, and an output3 interface are located on the back of the ABS plastic housing; an AuxScale interface, an AuxValve interface, a P2 interface, an F2 interface, a Spare interface, an RJ45 (PC) interface, an RJ45 (IoT) interface, a USB interface, and a power button.

[0011] Furthermore, the disposable assembly pipeline includes a liquid collection bottle and an air filter fixedly connected to the inner wall of the embedded groove. A hose is fixedly connected to the front of the housing. A disposable pressure sensor is installed on the hose. The top end of the hose extends into the interior of the liquid collection bottle and the air filter and is fixedly connected to the liquid collection bottle and the air filter. The multi-way valve includes a switching valve one and a switching valve two.

[0012] Furthermore, the right side of the pipeline sorting comb is fixedly connected to a first outlet pipe of a first-stage valve, a second outlet pipe of a first-stage valve, a third outlet pipe of a first-stage valve, a fourth outlet pipe of a first-stage valve, a fifth outlet pipe of a first-stage valve, a first outlet pipe of a second-stage valve, a second outlet pipe of a second-stage valve, a third outlet pipe of a second-stage valve, a fourth outlet pipe of a second-stage valve, and a fifth outlet pipe of a second-stage valve.

[0013] Furthermore, the first clamp valve, the second clamp valve, and the third clamp valve are all installed on the hose.

[0014] Furthermore, the pipeline pressure transmitter is mounted on the outer wall of the hose, the pipeline flow sensor is mounted on the outer wall of the hose, and the middle section of the hose extends into the interior of two multi-way valves.

[0015] This utility model has the following beneficial effects:

[0016] 1. Improve production efficiency and quality: High levels of automation and intelligence reduce manual intervention, increase production speed, and ensure high quality in every repackaging process, reducing defect rates.

[0017] 2. Reduce operating costs: Quick pipeline replacement and simple maintenance reduce downtime and labor costs, disposable components reduce the risk of cross-contamination, and reduce indirect costs such as cleaning and validation.

[0018] 3. Enhanced flexibility and market responsiveness: The ability to quickly adapt to different packaging needs enables companies to respond rapidly to changes in market demand and shorten the time to market for new products.

[0019] 4. Enhanced safety and compliance: Built-in safety mechanisms such as emergency stop buttons and buzzer warnings, along with a design that strictly adheres to industry standards, ensure production safety and comply with international certification and regulatory requirements.

[0020] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the heat dissipation groove of this utility model;

[0025] Figure 4 This is a schematic diagram of the one-time assembly pipeline of this utility model;

[0026] Figure 5 This is a schematic diagram of the interface assembly of this utility model.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. ABS plastic shell; 2. Human-machine interface; 3. Emergency stop button; 4. Buzzer; 5. Peristaltic pump; 7. Multi-way valve; 8. Pipeline flow sensor; 9. Pipeline pressure transmitter; 10. Interface combination; 11. Label printer; 12. One-time assembled pipeline; 13. Pipeline comb; 101. Heat dissipation groove; 102. Embedded groove; 103. Printer interface; 1201. Hoses; 1202. One-time pressure sensor; 1203. Liquid collection bottle and air filter; 1204. Switch valve one; 1205. Switch valve two; 1206. Outlet pipe one of switch valve one; 1207. Outlet pipe two of switch valve one; 1208. Outlet pipe three of switch valve one; 1209. Outlet pipe four of switch valve one; 1210. Outlet pipe five of switch valve one; 1211. Outlet pipe one of switch valve two; 1212. Outlet pipe two of switch valve two ; 1213, No. 2 switch valve outlet pipe three; 1214, No. 2 switch valve outlet pipe four; 1215, No. 2 switch valve outlet pipe five; 1001, input1 interface; 1002, input2 interface; 1003, input3 interface; 1004, output1 interface; 1005, output2 interface; 1006, output3 interface; 1007, Auxpump interface; 1008, AuxScale interface; 1009, AuxValve interface; 1010, P2 interface; 1011, F2 interface; 1012, Spare interface; 1013, RJ45PC interface; 1014, RJ45IOT interface; 1015, USB interface; 1016, power button; 601, No. 1 pinch valve; 602, No. 2 pinch valve; 603, No. 3 pinch valve. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-5 As shown, this utility model is a liquid dispensing device, including an ABS plastic shell 1, wherein the ABS plastic shell 1 is made of ABS plastic.

[0031] A human-machine interface 2 is fixedly connected to the front side of the ABS plastic housing 1. An emergency stop button 3 is fixedly connected to the front side of the ABS plastic housing 1. A buzzer 4 is fixedly connected to the front side of the ABS plastic housing 1. A peristaltic pump 5 is fixedly connected to the left side of the ABS plastic housing 1. A first pinch valve 601 and a second pinch valve 602 are fixedly connected to the front side of the ABS plastic housing 1. A third pinch valve 603 is fixedly connected to the top surface of the ABS plastic housing 1. Two multi-way valves 7 are fixedly connected to the right side of the ABS plastic housing 1. A pipeline flow meter is fixedly connected to the front of the ABS plastic housing 1. Sensor 8, a pipeline pressure transmitter is fixedly connected to the left side of the ABS plastic housing 1; 9, an interface assembly 10 is provided on the rear side of the ABS plastic housing 1; a label printer 11 is fixedly connected to the top surface of the ABS plastic housing 1; a disposable assembly pipeline 12 is provided on the right side of the ABS plastic housing 1; a pipeline comb 13 is fixedly connected to the right side of the ABS plastic housing 1; a heat dissipation groove 101 is provided on the rear side of the ABS plastic housing 1; an embedded groove 102 is provided on the top surface of the ABS plastic housing 1; a printer interface 103 is provided on the inner wall of the embedded groove 102.

[0032] The interface assembly 10 includes an Auxpump interface 1007 located on the back of the ABS plastic housing 1. The back of the ABS plastic housing 1 also has an input 1 interface 1001, an input 2 interface 1002, an input 3 interface 1003, an output 1 interface 1004, an output 2 interface 1005, and an output 3 interface 1006. The back of the ABS plastic housing 1 also has a... The back of the ABS plastic casing 1 has an AuxScale interface 1008, an AuxValve interface 1009, a P2 interface 1010, an F2 interface 1011, a Spare interface 1012, an RJ45PC interface 1013, an RJ45IOT interface 1014, a USB interface 1015, and a power button 1016.

[0033] The disposable assembly pipeline 12 includes a liquid collection bottle and an air filter 1203 fixedly connected to the inner wall of the embedded groove 102. A hose 1201 is fixedly connected to the front of the ABS plastic shell 1. A disposable pressure sensor 1202 is provided on the hose 1201. The top end of the hose 1201 extends into the interior of the liquid collection bottle and air filter 1203 and is fixedly connected to the liquid collection bottle and air filter 1203. The multi-way valve 7 includes a first switching valve 1204 and a second switching valve 1205.

[0034] The right side of the pipeline comb 13 is fixedly connected to the first outlet pipe 1206 of the first switch valve, the second outlet pipe 1207 of the first switch valve, the third outlet pipe 1208 of the first switch valve, the fourth outlet pipe 1209 of the first switch valve, the fifth outlet pipe 1210 of the first switch valve, the first outlet pipe 1211 of the second switch valve, the second outlet pipe 1212 of the second switch valve, the third outlet pipe 1213 of the second switch valve, the fourth outlet pipe 1214 of the second switch valve, and the fifth outlet pipe 1215 of the second switch valve.

[0035] The front of the ABS plastic housing 1 is fixedly connected to a first clamp valve 601 and a second clamp valve 602, and the top surface of the ABS plastic housing 1 is fixedly connected to a third clamp valve 603. The first clamp valve 601, the second clamp valve 602 and the third clamp valve 603 are all mounted on the hose 1201. The pipeline pressure transmitter 9 is mounted on the outer wall of the hose 1201, and the pipeline flow sensor 8 is mounted on the outer wall of the hose 1201. The middle part of the hose 1201 extends into the interior of two multi-way valves 7.

[0036] ABS plastic housing 1: Serves as a stable frame support for the desktop liquid dispensing system, ensuring accurate installation and positioning of each component and maintaining the structural integrity of the entire system. The back of the ABS plastic housing 1 is designed with integrated heat dissipation grooves 101 to ensure that the internal electronic components can maintain a suitable temperature during long-term operation and extend the service life of the system. The top of the ABS plastic housing is designed with an embedded groove 102 to place a liquid collection bottle and an air filter 1203, which facilitates the collection of liquid in the liquid collection bottle during pipeline purging and ensures that there is no residual air in the pipeline before dispensing.

[0037] Human-machine interface 2: It is fixedly installed on the ABS plastic shell 1 and integrates a high-performance industrial-grade computer system and a high-sensitivity touch screen interface. The touch screen has multi-touch function, which makes it easy for operators to directly perform precise control and parameter setting in a strictly sterile environment. The human-machine interface 2 can display and save process parameters and data logs in real time.

[0038] Emergency stop button 3: Fixedly installed on the ABS plastic housing 1. In an emergency, the operator can quickly stop the operation of the peristaltic pump 5 by using the emergency stop button 3.

[0039] Buzzer 4: Fixedly installed on the ABS plastic housing 1, it emits an audible and visual alarm when the system triggers the alarm;

[0040] Peristaltic pump 5: Fixedly installed on the side of ABS plastic shell 1, it realizes fluid transfer by peristaltic extrusion of the assembled pipeline 12;

[0041] Pinch valves: Pinch valve 601, pinch valve 602 and pinch valve 603 are fixedly installed on the front and top of the ABS plastic shell 1, respectively, to fix the disposable assembled pipeline 12 and control the opening and closing of the disposable assembled pipeline 12. When the pinch valve is closed, the pipeline is squeezed and liquid cannot pass through. When the pinch valve is open, the pipeline can transport liquid.

[0042] Multi-way valve 7 is a manual proportional multi-way directional valve MHV-32 manual proportional valve with a maximum flow rate of 800L / min and a maximum pressure of 430bar. The maximum flow rate of a single valve is 380l / min. It is suitable for industries such as engineering machinery, mining, metallurgy, shipbuilding, and pharmaceuticals. It is a load-sensitive proportional directional multi-way valve with pressure compensation.

[0043] A pipeline flow sensor is an instrument used to measure the flow rate of liquid or gas fluids in pipelines. It senses the fluid's velocity and flow rate, converting these physical quantities into electrical signals or other output signals for data recording, monitoring, and control. It provides precise information about the fluid flow rate within pipelines, playing a crucial role in ensuring the normal operation of industrial production processes, saving energy, and controlling product quality.

[0044] Pipeline pressure transmitter 9 is one of the most commonly used pressure transmitters in industrial practice. It is widely used in various industrial automation environments, including oil pipelines, water conservancy and hydropower, railway transportation, intelligent buildings, production automation, aerospace, military, petrochemical, oil wells, power, shipbuilding, machine tools, ventilation ducts and many other industries.

[0045] Interface Combination 10: Fixed to the back of the ABS plastic housing 1, Interface Combination 10 is equipped with multiple interfaces, each of which can connect to different devices. The interface can connect to peristaltic pump 5, multi-way valve 7, pipeline flow sensor 8, pipeline pressure transmitter 9, 3 4-20mA analog input signals, and 3 4-20mA analog output signals.

[0046] Label printer 11: The label printer 11 connects to an industrial computer and touch screen via a USB cable and automatically prints batch information for each batch of packaging.

[0047] One-time assembly pipeline 12: One-time assembly pipeline 12 consists of hose 1201, one-time pressure sensor 1202, multi-way valve 7, liquid collection bottle and air filter 1203. One-time assembly pipeline 12 passes through the pump head of peristaltic pump 5, clamp valve 601, clamp valve 602, clamp valve 603, pipeline flow sensor 8 and pipeline pressure transmitter 9 in sequence. The one-time pressure sensor 1202 is connected to the pipeline flow sensor 8 and the pipeline pressure transmitter 9. Switch valve 1 1204 and switch valve 2 1205 work together.

[0048] Pipeline comb 13: Used to fix disposable assembled pipelines 12;

[0049] One specific application of this embodiment is:

[0050] Click on the human-computer interaction interface 2 to set the first clamp valve 601, the second clamp valve 602, and the third clamp valve 603 to the open state;

[0051] Next, the one-time assembly pipeline 12 will be correctly assembled. The assembly process is as follows: connect the hose 1201 sequentially to the peristaltic pump 5, the first clamp valve 601, the pipeline flow sensor 8, the second clamp valve 602, and the third clamp valve 603. Place the liquid collection bottle and air filter 1203 into the embedded groove 102. Set two multi-way valves 7, namely, switch valve one 1204 and switch valve two 1205. After assembly, connect the first switch valve outlet pipe 1206, the first switch valve outlet pipe two 1207, and the first switch valve outlet pipe 1205. Connect the outlet pipes of valve 3 (1208), valve 1 (1209), valve 1 (1210), valve 2 (1211), valve 2 (1212), valve 2 (1213), valve 2 (1214), and valve 2 (1215) to the sample containers, bottles, bags, or other containers to be dispensed. After connection, use the pipe arrangement comb 13 to arrange the pipes neatly. Connect the label printer 11 to the printer interface 103.

[0052] In the human-machine interface 2, set the process parameters such as the dispensing weight and click the start button. The system will automatically start the peristaltic pump 5 for dispensing. At the same time, the disposable pressure sensor 1202 and the pipeline flow sensor 8 collect data and transmit it to the human-machine interface 2 for display and saving. If the emergency stop button 3 is pressed during the dispensing process, the buzzer 4 will sound an audible and visual alarm, and the peristaltic pump 5 will stop running. If other alarms are triggered during the dispensing process, such as the disposable pressure sensor 1202 detecting that the pressure exceeds the alarm value, the buzzer 4 will also sound an audible and visual alarm. After each sample is dispensed, the label printer 11 will automatically print a label.

[0053] Interface combination 10 can be expanded to connect more instruments or meters. Among them, input1 interfaces 1001, 1002 and input3 interfaces 1003 are input interfaces that can connect 4-20mA analog input signals. Output1 interfaces 1004, output2 interfaces 1005 and output3 interfaces 1006 are output interfaces that can connect 4-20mA analog output signals. Auxpump interface 1007 can connect a peristaltic pump 5. AuxScale interface 1008 can connect a load cell or balance. AuxValve interface 1009 can connect a valve. P2 interface 1010 can connect a disposable pressure sensor 1202. F2 interface 1011 can connect a flow sensor. Spare interface 1012 is a spare interface. RJ45 (PC) interface 1013 and RJ45 (IOT) interface 1014 are two types of RJ45 interfaces.

[0054] Technical problems to be solved:

[0055] 1. Precision and accuracy challenges: Traditional dispensing systems are often limited by dispensing accuracy and cannot meet the requirements of high-precision dispensing. This system improves the dispensing accuracy to the level of three per thousand by using high-sensitivity weighing sensors and flow sensors, which greatly improves the accuracy and consistency of dispensing.

[0056] 2. Insufficient adaptability and flexibility: In the past, the system often required complex and time-consuming adjustments to meet the dispensing needs of different liquid properties. This system, through the design of one-time assembly pipeline and the function of quick parameter adjustment, can complete the replacement within five minutes, meet the needs of quickly adapting to liquids with diverse chemical properties, and improve production flexibility.

[0057] 3. High operational complexity and training costs: Complex operation interfaces and maintenance processes increase user training costs and difficulty of use. This system adopts a highly intelligent design and an intuitive operation interface, which significantly reduces the operation threshold, shortens the employee training cycle, and improves the user experience.

[0058] 4. Environmental monitoring and pollution control challenges: Liquid dispensing in a sterile or clean environment places extremely high demands on environmental monitoring. This system adopts a one-time closed-loop flow path design, which reduces dependence on the external environment, lowers the risk of contamination, and reduces liquid loss (no more than 1% per cycle), meets GMP (Good Manufacturing Practice) standards, and improves product quality and safety.

[0059] 5. Data management and quality control challenges: Traditional systems may have shortcomings in data recording and analysis. The data management functions integrated in this system not only improve production efficiency but also facilitate quality traceability and continuous improvement, meeting the stringent requirements of modern production for data transparency and quality control.

[0060] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0061] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A liquid dispensing device, comprising a housing (1), characterized in that: The outer shell (1) is made of ABS plastic. A human-machine interface (2) is fixedly connected to the front side of the housing (1). An emergency stop button (3) is fixedly connected to the front side of the housing (1). A buzzer (4) is fixedly connected to the front side of the housing (1). A peristaltic pump (5) is fixedly connected to the left side of the housing (1). A first clamp valve (601) and a second clamp valve (602) are fixedly connected to the front side of the housing (1). A third clamp valve (603) is fixedly connected to the top surface of the housing (1). Two multi-way valves (7) are fixedly connected to the right side of the housing (1). A pipeline flow sensor (8) is fixedly connected to the front of the housing (1). A pipeline pressure transmitter (9) is fixedly connected to the left side of the housing (1).

2. The liquid dispensing device according to claim 1, characterized in that, An interface assembly (10) is provided on the rear side of the outer shell (1). A label printer (11) is fixedly connected to the top surface of the outer shell (1). A disposable assembly pipeline (12) is provided on the right side of the outer shell (1). A pipeline sorting comb (13) is fixedly connected to the right side of the outer shell (1). A heat dissipation groove (101) is provided on the rear side of the outer shell (1). An embedded groove (102) is provided on the top surface of the outer shell (1). A printer interface (103) is provided on the inner wall of the embedded groove (102).

3. A liquid dispensing device according to claim 2, characterized in that, The interface assembly (10) includes an Auxpump interface (1007) disposed on the back of the housing (1). The back of the ABS plastic housing (1) is provided with an input1 interface (1001), an input2 interface (1002), an input3 interface (1003), an output1 interface (1004), an output2 interface (1005), and an output3 interface (1006). The back of the casing (1) is provided with an AuxScale interface (1008), an AuxValve interface (1009), a P2 interface (1010), an F2 interface (1011), a Spare interface (1012), an RJ45 (PC) interface (1013), an RJ45 (IoT) interface (1014), a USB interface (1015), and a power button (1016).

4. A liquid dispensing device according to claim 3, characterized in that, The disposable assembly pipeline (12) includes a liquid collection bottle and an air filter (1203) fixedly connected to the inner wall of the embedded groove (102). A hose (1201) is fixedly connected to the front of the outer shell (1). A disposable pressure sensor (1202) is provided on the hose (1201). The top end of the hose (1201) extends into the interior of the liquid collection bottle and the air filter (1203) and is fixedly connected to the liquid collection bottle and the air filter (1203). The multi-way valve (7) includes a first switching valve (1204) and a second switching valve (1205).

5. A liquid dispensing device according to claim 4, characterized in that, The right side of the pipe arrangement comb (13) is fixedly connected to the first outlet pipe (1206) of the first switch valve, the right side of the pipe arrangement comb (13) is fixedly connected to the second outlet pipe (1207) of the first switch valve, the right side of the pipe arrangement comb (13) is fixedly connected to the third outlet pipe (1208) of the first switch valve, the right side of the pipe arrangement comb (13) is fixedly connected to the fourth outlet pipe (1209) of the first switch valve, and the right side of the pipe arrangement comb (13) is fixedly connected to the fifth outlet pipe (1210) of the first switch valve. The right side of the pipeline comb (13) is fixedly connected to the first outlet pipe (1211) of the second switch valve, the right side of the pipeline comb (13) is fixedly connected to the second outlet pipe (1212), the right side of the pipeline comb (13) is fixedly connected to the third outlet pipe (1213) of the second switch valve, the right side of the pipeline comb (13) is fixedly connected to the fourth outlet pipe (1214) of the second switch valve, and the right side of the pipeline comb (13) is fixedly connected to the fifth outlet pipe (1215) of the second switch valve.

6. A liquid dispensing device according to claim 5, characterized in that, The first clamp valve (601), the second clamp valve (602), and the third clamp valve (603) are all installed on the hose (1201).

7. A liquid dispensing device according to claim 6, characterized in that, The pipeline pressure transmitter (9) is installed on the outer wall of the hose (1201), the pipeline flow sensor (8) is installed on the outer wall of the hose (1201), and the middle part of the hose (1201) extends into the interior of the two multi-way valves (7).

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