Desktop liquid dispensing system

CN119284260BActive Publication Date: 2026-10-23SHANGHAI DUONING BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202411528047.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-30
Publication Date
2026-10-23
Estimated Expiration
2044-10-30

AI Technical Summary

Technical Problem

[0003]现有技术存在的问题:1.精度限制:现有的分装系统精度不足,特别是连续作业时的重复精度控制

Benefits of technology

[0014](1)提升生产效率与质量:高度的自动化和智能化减少人工干预,提高生产速度,同时确保每一次分装的高质量,减少不良品率。

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to liquid subpackaging technical field, and disclose a desktop liquid subpackaging system, including shell, the side wall of shell is equipped with heat dissipation groove, the top of shell is equipped with embedded recess, before use, ensure that the output end of multiple switch valve liquid outlet channel is connected with the sample container bag to be subpackaged, connect the power supply of peristaltic pump, peristaltic pump drives internal solution to occur peristaltic transmission through hose, when liquid flows along the inner wall of hose, force internal air to enter liquid collection bottle and air filter inside along the inner wall of hose, when there is no air in the inside of hose, close pinch valve three, limit the liquid in the inside of hose to enter liquid collection bottle and air filter inside, at this moment, swing handle downward, make the hole of annular material baffle coincide with multiple switch valve liquid outlet channel, make the solution in the inside of transmission pipe enter the inside of switch valve liquid outlet channel through switch valve, make the solution enter the inside of sample container bag to be subpackaged, thereby complete the subpackaging process of equipment.
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Description

Technical Field

[0001] This invention relates to the field of liquid dispensing equipment technology, specifically a desktop liquid dispensing system. Background Technology

[0002] 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.

[0003] 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 requirements for the adaptability of dispensing equipment. Existing systems often perform poorly when handling special liquids, or require frequent replacement of parts and adjustment of parameters. 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. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a desktop liquid dispensing system, including a shell, a heat dissipation groove on the side wall of the shell, an embedded groove on the top of the shell, a printer interface fixedly connected to the inner wall of the embedded groove, a human-machine interface fixedly connected to the side wall of the shell, an emergency stop button fixedly connected to the side wall of the shell, a buzzer fixedly connected to the side wall of the shell, and a peristaltic pump fixedly connected to the side wall of the shell.

[0005] A clamp valve 1 is fixedly connected to the side wall of the housing; a clamp valve 2 is fixedly connected to the side wall of the housing; a clamp valve 3 is fixedly connected to the side wall of the housing; a flow sensor is fixedly connected to the side wall of the housing; a pressure transmitter assembly is fixedly connected to the side wall of the housing; and a pressure sensor extension cable is fixedly connected to the side wall of the pressure transmitter assembly.

[0006] Preferably, an interface assembly is fixedly connected to the side wall of the outer casing, a label printer is fixedly connected to the top of the outer casing, a pipeline management comb is fixedly connected to the side wall of the outer casing, and a disposable assembly pipeline is fixedly connected to the inner wall of the peristaltic pump. After setting process parameters such as the dispensing weight on the human-machine interface, clicking the start button on the human-machine interface screen will cause the disposable pressure sensor and flow sensor to collect data and transmit it to the PLC control system and electrical system during the assembly process. The PLC will process the data and transmit it to the human-machine interface for display and saving. If the emergency stop button is pressed during the dispensing process, the buzzer will sound an audible and visual alarm, and the peristaltic pump will stop running simultaneously.

[0007] Preferably, the disposable assembly piping includes a flexible tube fixedly connected to the inner wall of the peristaltic pump, and a disposable pressure sensor fixedly connected to the side wall of the housing. The end of the pressure sensor extension cable away from the pressure transmitter assembly is fixedly connected to the side of the disposable pressure sensor. If other alarms are triggered during the dispensing process, such as the pressure detected by the disposable pressure sensor exceeding the alarm value, a buzzer will also sound an audible and visual alarm. After each sample is dispensed, a label printer automatically prints a label. The interface combination can be expanded to connect to more instruments or meters, improving the accuracy of the dispensing process.

[0008] Preferably, the disposable assembly pipeline also includes a liquid collection bottle and an air filter connected through the end of the hose away from the peristaltic pump. Two transfer pipes are connected through the side wall of the hose, and a switch valve is connected through the end of the two transfer pipes away from the hose. Five switch valve outlet channels are connected through the side wall of the two switch valves. A switch valve assembly is rotatably connected to the inner wall of the switch valve. Before use, connect the outlet end of the hose to the external pipeline and ensure that clamp valve one, clamp valve two, and clamp valve three are in the open state. Also ensure that the output ends of the multiple switch valve outlet channels are connected to the sample bag to be dispensed, and place the sample bag to be dispensed on top of the pry plate.

[0009] Preferably, an annular baffle plate is rotatably connected to the inner wall of the switch valve, and a handle is fixedly connected to the side wall of the annular baffle plate. A control component is fixedly connected to the end of the switch valve's outlet channel away from the switch valve. When the power to the peristaltic pump is turned on, the peristaltic pump drives the internal solution to peristaltic transmission through the hose. When the liquid flows along the inner wall of the hose, it pushes the air inside the hose to move synchronously, forcing the internal air to enter the liquid collection bottle and air filter along the inner wall of the hose. When there is no air inside the hose, the clamp valve is closed to restrict the liquid inside the hose from entering the liquid collection bottle and air filter. At this time, the handle is swung downwards so that the holes of the annular baffle plate coincide with the outlet channels of multiple switch valves, allowing the solution inside the transmission tube to enter the outlet channel of the switch valve through the switch valve, and then enter the sample container bag to be dispensed, thereby completing the dispensing process of the equipment.

[0010] Preferably, the control assembly further includes a fixed bracket fixedly connected to the outer wall of the liquid outlet channel of the switching valve, a pry plate rotatably connected to the side wall of the fixed bracket, a hydraulic tank fixedly connected to the bottom of the fixed bracket, and a piston plate slidably connected to the inner wall of the hydraulic tank.

[0011] Preferably, the control assembly further includes a fixed plate rotatably connected to the bottom of the piston plate, with a push plate rotatably connected to the end of the fixed plate away from the piston plate, and the side wall of the push plate being fixedly connected to the side wall of the pry plate.

[0012] Preferably, the control component further includes a transmission pipe extending through the side wall of the hydraulic tank. A fixed block is connected to the end of the transmission pipe furthest from the hydraulic tank. The outer wall of the fixed block is fixedly connected to the inner wall of the outlet channel of the switching valve. A hydraulic telescopic rod is connected through the side wall of the fixed block. A sliding block is rotatably connected to the end of the hydraulic telescopic rod furthest from the fixed block. A circular baffle is slidably connected to the outer wall of the sliding block. The outer wall of the circular baffle is rotatably connected to the inner wall of the outlet channel of the switching valve. A sealing plate is fixedly connected to the inner wall of the outlet channel of the switching valve. Due to the height difference between the two switching valves, after the equipment completes the venting process, the water pressure on the bottom switching valve is higher than that on the top switching valve. When the outlet channel of the switching valve performs material distribution, the bottommost material awaiting distribution will be distributed. The sample bags are already full, but the topmost sample bag for dispensing is not yet full. To address this issue, a pipe straightening comb is installed inside the equipment. Solution enters the sample bag for dispensing through the outlet channel of the switch valve. As the solution inside the sample bag increases, the pry plate is pressed downwards and rotates, forcing the push plate at the other end to tilt upwards. The push plate drives the piston plate upwards along the inner wall of the hydraulic tank, forcing the hydraulic oil inside the hydraulic tank to enter the hydraulic telescopic rod through the transmission pipe and the fixing block. This forces the hydraulic telescopic rod to extend, causing the circular baffle to rotate around the connection point and contact the side wall of the sealing plate, creating a seal inside the outlet channel of the switch valve. Figure 8 As shown in the diagram, during this process, as the distance between the circular baffle and the inner wall of the liquid outlet channel of the switching valve gradually decreases, the resistance encountered by the corresponding liquid outlet channel of the switching valve increases. This increased resistance will limit the speed at which the solution enters the sample bag to be dispensed. By using the above-mentioned components, it is ensured that the feeding speed of multiple sample bags to be dispensed is relatively small, avoiding the bottom sample bag from being subjected to excessive pressure during the filling process, which could lead to expansion and rupture.

[0013] The present invention has the following beneficial effects:

[0014] (1) Improve production efficiency and quality: High automation and intelligence reduce human intervention, increase production speed, and at the same time ensure high quality of each repackaging and reduce defect rate.

[0015] (2) Reduced operating costs: Quick pipeline replacement and easy maintenance reduce downtime and labor costs, disposable components reduce the risk of cross-contamination, and reduce indirect costs such as cleaning and verification.

[0016] (3) Enhance flexibility and market response speed: The ability to quickly adapt to different packaging needs enables enterprises to respond quickly to changes in market demand and shorten the new product launch cycle.

[0017] (4) This invention enhances safety and compliance: Built-in safety mechanisms such as emergency stop button, buzzer warning and design that strictly follows industry standards ensure production safety and meet international certification and regulatory requirements.

[0018] (5) Due to the difference in height between the two switching valves, after the equipment completes the venting process, the water pressure on the bottom switching valve is higher than that on the top switching valve. When the liquid outlet channel of the switching valve is used for dispensing, the bottom sample bag may be full while the top sample bag may not be full. To address this issue, a pipeline comb is installed inside the equipment. As the solution enters the sample bag through the switching valve outlet channel, the pry plate rotates downwards under pressure, forcing the push plate at the other end to tilt upwards. The push plate drives the piston plate to move upwards along the inner wall of the hydraulic tank, forcing the hydraulic oil inside the hydraulic tank to enter the hydraulic telescopic rod through the transmission pipe and the fixing block. This causes the hydraulic telescopic rod to extend, forcing the circular baffle to rotate around the connection point and contact the side wall of the sealing plate, creating a sealed state inside the switching valve outlet channel. Figure 8 As shown in the diagram, during this process, as the distance between the circular baffle and the inner wall of the liquid outlet channel of the switching valve gradually decreases, the resistance encountered by the corresponding liquid outlet channel of the switching valve increases. This increased resistance will limit the speed at which the solution enters the sample bag to be dispensed. By using the above-mentioned components, it is ensured that the feeding speed of multiple sample bags to be dispensed is relatively small, avoiding the bottom sample bag from being subjected to excessive pressure during the filling process, which could lead to expansion and rupture. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a front view of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the rear side of the overall structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the internal components of the overall structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the switching valve assembly of the present invention;

[0024] Figure 5 This is a schematic diagram of the one-time assembly pipeline of the present invention;

[0025] Figure 6 This is a schematic diagram of the control component of the present invention;

[0026] Figure 7 This is a cross-sectional schematic diagram of the control component of the present invention;

[0027] Figure 8 For the present invention Figure 7 Enlarged diagram of A in the middle;

[0028] Figure 9 For the present invention Figure 7 Enlarged diagram of B in the diagram.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] In the diagram: 1. Housing; 101. Heat dissipation groove; 102. Embedded recess; 103. Printer interface; 2. Human-machine interface; 3. Emergency stop button; 4. Buzzer; 5. Peristaltic pump; 601. Pinch valve one; 602. Pinch valve two; 603. Pinch valve three; 7. Switch valve assembly; 701. Annular baffle; 702. Handle; 8. Flow sensor; 9. Pressure transmitter assembly; 901. Pressure sensor extension cable; 10. Interface assembly; 11. Label printer; 13. Pipeline comb; 12. One-time assembly tube. 1201. Hose; 1202. Disposable pressure sensor; 1203. Liquid collection bottle and air filter; 1204. Transfer pipe; 1205. Switch valve; 1206. Switch valve outlet channel; 130. Control component; 131. Fixing frame; 132. Pry plate; 133. Hydraulic tank; 134. Piston plate; 135. Fixing plate; 136. Push plate; 137. Long transfer pipe; 138. Fixing block; 139. Hydraulic telescopic rod; 1310. Sliding block; 1311. Circular baffle; 1312. Sealing plate. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1, please refer to Figures 1-4 The present invention is a desktop liquid dispensing system, including a shell 1, a heat dissipation groove 101 on the side wall of the shell 1, an embedded groove 102 on the top of the shell 1, a printer interface 103 fixedly connected to the inner wall of the embedded groove 102, a human-machine interface 2 fixedly connected to the side wall of the shell 1, an emergency stop button 3 fixedly connected to the side wall of the shell 1, a buzzer 4 fixedly connected to the side wall of the shell 1, and a peristaltic pump 5 fixedly connected to the side wall of the shell 1.

[0033] A pinch valve 601 is fixedly connected to the side wall of housing 1, a pinch valve 602 is fixedly connected to the side wall of housing 1, a pinch valve 603 is fixedly connected to the side wall of housing 1, a flow sensor 8 is fixedly connected to the side wall of housing 1, a pressure transmitter assembly 9 is fixedly connected to the side wall of housing 1, and a pressure sensor extension cable 901 is fixedly connected to the side wall of pressure transmitter assembly 9.

[0034] An interface assembly 10 is fixedly connected to the side wall of the outer casing 1, a label printer 11 is fixedly connected to the top of the outer casing 1, a pipe comb 13 is fixedly connected to the side wall of the outer casing 1, and a disposable assembly pipe 12 is fixedly connected to the inner wall of the peristaltic pump 5. After setting the process parameters such as the dispensing weight on the human-machine interface 2, the start button on the screen of the human-machine interface 2 is clicked. During the assembly process, the disposable pressure sensor 1202 and the flow sensor 8 collect data and transmit it to the PLC control system and electrical system. The PLC processes the data and transmits 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.

[0035] The disposable assembly piping 12 includes a flexible tube 1201 fixedly connected to the inner wall of the peristaltic pump 5, and a disposable pressure sensor 1202 fixedly connected to the side wall of the housing 1. The end of the pressure sensor extension cable 901 away from the pressure transmitter assembly 9 is fixedly connected to the side of the disposable pressure sensor 1202. If other alarms are triggered during the dispensing process, such as the pressure detected by the disposable pressure sensor 1202 exceeding the alarm value, the buzzer 4 will also emit an audible and visual alarm. After each sample is dispensed, the label printer 11 automatically prints a label. The interface assembly 10 can be expanded to connect to more instruments or meters, improving the accuracy of the dispensing process.

[0036] The disposable assembly pipeline 12 also includes a liquid collection bottle and an air filter 1203 connected to the end of the hose 1201 away from the peristaltic pump 5. Two transmission pipes 1204 are connected to the side wall of the hose 1201. Switch valves 1205 are connected to the ends of the two transmission pipes 1204 away from the hose 1201. Five switch valve outlet channels 1206 are connected to the side walls of the two switch valves 1205. Switch valve assembly 7 is rotatably connected to the inner wall of the switch valves 1205. Before use, connect the outlet end of the hose 1201 to the external pipeline and ensure that the clamp valve 1 601, clamp valve 2 602, and clamp valve 3 603 are in the open state. Also ensure that the output ends of the multiple switch valve outlet channels 1206 are connected to the sample bag to be dispensed and place the sample bag to be dispensed on top of the pry plate 132.

[0037] An annular baffle plate 701 is rotatably connected to the inner wall of the switching valve 1205, and a handle 702 is fixedly connected to the side wall of the annular baffle plate 701. A control component 130 is fixedly connected to the end of the liquid outlet channel 1206 away from the switching valve 1205. When the power supply to the peristaltic pump 5 is turned on, the peristaltic pump 5 drives the internal solution to peristaltic transport through the hose 1201. As the liquid flows along the inner wall of the hose 1201, it pushes the air inside the hose 1201 to move synchronously, forcing the internal air to enter the liquid collection bottle along the inner wall of the hose 1201. Inside the air filter 1203, when there is no air inside the hose 1201, close the clamp valve 603 to restrict the liquid inside the hose 1201 from entering the liquid collection bottle and the air filter 1203. At this time, swing the handle 702 downward so that the hole of the annular baffle 701 coincides with the liquid outlet channel 1206 of multiple switch valves, so that the solution inside the transmission pipe 1204 enters the liquid outlet channel 1206 of the switch valve through the switch valve 1205, and the solution enters the sample container bag to be dispensed, thereby completing the dispensing process of the equipment.

[0038] Example 2, please refer to Figures 5-9 The present invention is a desktop liquid dispensing system. Based on the first embodiment, the control component 130 further includes a fixed frame 131 fixedly connected to the outer wall of the liquid outlet channel 1206 of the switch valve. A pry plate 132 is rotatably connected to the side wall of the fixed frame 131. A hydraulic tank 133 is fixedly connected to the bottom of the fixed frame 131. A piston plate 134 is slidably connected to the inner wall of the hydraulic tank 133.

[0039] The control assembly 130 also includes a fixed plate 135 rotatably connected to the bottom of the piston plate 134. A push plate 136 is rotatably connected to one end of the fixed plate 135 away from the piston plate 134. The side wall of the push plate 136 is fixedly connected to the side wall of the pry plate 132.

[0040] The control component 130 also includes a transmission pipe 137 that runs through the side wall of the hydraulic tank 133. A fixing block 138 is connected to the end of the transmission pipe 137 away from the hydraulic tank 133. The outer wall of the fixing block 138 is fixedly connected to the inner wall of the valve outlet channel 1206. A hydraulic telescopic rod 139 is connected through the side wall of the fixing block 138. A sliding block 1310 is rotatably connected to the end of the hydraulic telescopic rod 139 away from the fixing block 138. A circular baffle 1311 is slidably connected to the outer wall of the sliding block 1310. The outer wall of the circular baffle 1311 is rotatably connected to the inner wall of the valve outlet channel 1206. A sealing plate 1312 is fixedly connected to the inner wall of the valve outlet channel 1206. Due to the height difference between the two valves 1205, after the equipment completes the venting process, the water pressure on the bottom valve 1205 is higher than that on the top valve 1205. At this time, the valve outlet channel 1206 is divided. During material preparation, the bottom sample bag may be full while the top sample bag may not be. To address this issue, a pipe straightening comb 13 is installed inside the equipment. The solution enters the sample bag through the outlet channel 1206 of the switch valve. As the solution increases inside the sample bag, the pry plate 132 rotates downwards under pressure, forcing the push plate 136 at the other end to tilt upwards. The push plate 136 drives the piston plate 134 to move upwards along the inner wall of the hydraulic tank 133, forcing the hydraulic oil inside the hydraulic tank 133 to enter the hydraulic telescopic rod 139 through the transmission pipe 137 and the fixing block 138. This causes the hydraulic telescopic rod 139 to extend. The extension of the hydraulic telescopic rod 139 forces the circular baffle 1311 to rotate around the connection point and contact the side wall of the sealing plate 1312, creating a seal inside the outlet channel 1206 of the switch valve. Figure 8 As shown in the diagram, during this process, as the distance between the circular baffle 1311 and the inner wall of the liquid outlet channel 1206 of the switching valve gradually decreases, the resistance encountered by the corresponding liquid outlet channel 1206 increases. This increased resistance limits the speed at which the solution enters the sample container bag to be dispensed. By using the above components, the feeding speed of multiple sample containers to be dispensed is kept relatively small, preventing the bottom sample container bag from being subjected to excessive pressure during filling and thus avoiding expansion and rupture.

[0041] A specific application of this embodiment is as follows: Before use, the discharge end of the hose 1201 is connected to an external pipe, and it is ensured that clamp valve 1 601, clamp valve 2 602, and clamp valve 3 603 are in the open state. It is also ensured that the output ends of the multiple switch valve liquid outlet channels 1206 are connected to the sample container bag to be dispensed. The sample container bag to be dispensed is then placed on top of the pry plate 132. At this time, the power to the peristaltic pump 5 is turned on. The peristaltic pump 5 drives the internal solution to peristaltic transport through the hose 1201. As the liquid flows along the inner wall of the hose 1201, it pushes the air inside the hose 1201 to move synchronously. This forces internal air to enter the liquid collection bottle and air filter 1203 along the inner wall of the hose 1201. When there is no air inside the hose 1201, the clamp valve 603 is closed to restrict the liquid inside the hose 1201 from entering the liquid collection bottle and air filter 1203. At this time, the handle 702 is swung downwards so that the hole of the annular baffle 701 coincides with the liquid outlet channel 1206 of the multiple switch valves, so that the solution inside the transfer pipe 1204 enters the liquid outlet channel 1206 of the switch valve through the switch valve 1205, and the solution enters the sample container bag to be dispensed, thereby completing the dispensing process of the equipment.

[0042] After setting process parameters such as the dispensing weight on the human-machine interface 2, click the start button on the screen of the human-machine interface 2. During the assembly process, the disposable pressure sensor 1202 and flow sensor 8 collect data and transmit it to the PLC control system and electrical system. The PLC processes the data and transmits it back 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 pressure detected by the disposable pressure sensor 1202 exceeding the alarm value, the buzzer 4 will also sound an audible and visual alarm. After each sample is dispensed, the label printer 11 automatically prints a label. The interface combination 10 can be expanded to connect more instruments or meters to improve the accuracy of the equipment dispensing.

[0043] Because of the height difference between the two switching valves 1205, after the equipment completes the venting process, the water pressure on the bottom switching valve 1205 is higher than that on the top switching valve 1205. When the liquid outlet channel 1206 of the switching valves dispenses the sample, the bottom sample bag is already full, while the top sample bag is not yet full. To address this issue, a pipe straightening comb 13 is installed inside the equipment. As the solution enters the sample bag through the liquid outlet channel 1206 of the switching valve, the liquid level increases within the sample bag. The pry plate 132 rotates downward under pressure, forcing the push plate 136 at the other end to tilt upward. The push plate 136 drives the piston plate 134 to move upward along the inner wall of the hydraulic tank 133, forcing the hydraulic oil inside the hydraulic tank 133 to enter the hydraulic telescopic rod 139 through the transmission pipe 137 and the fixing block 138, causing the hydraulic telescopic rod 139 to extend. The extension of the hydraulic telescopic rod 139 forces the circular baffle 1311 to rotate around the connection point and contact the side wall of the sealing plate 1312, thus forming a sealed state inside the liquid outlet channel 1206 of the switch valve, presenting as... Figure 8 As shown in the diagram, during this process, as the distance between the circular baffle 1311 and the inner wall of the liquid outlet channel 1206 of the switching valve gradually decreases, the resistance encountered by the corresponding liquid outlet channel 1206 increases. This increased resistance limits the speed at which the solution enters the sample container bag to be dispensed. By using the above components, the feeding speed of multiple sample containers to be dispensed is kept relatively small, preventing the bottom sample container bag from being subjected to excessive pressure during filling and thus avoiding expansion and rupture.

[0044] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention 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 the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A desktop liquid dispensing system, comprising a housing (1), wherein a heat dissipation groove (101) is provided on the side wall of the housing (1), an embedded groove (102) is provided on the top of the housing (1), a printer interface (103) is fixedly connected to the inner wall of the embedded groove (102), a human-machine interface (2) is fixedly connected to the side wall of the housing (1), an emergency stop button (3) is fixedly connected to the side wall of the housing (1), a buzzer (4) is fixedly connected to the side wall of the housing (1), and a peristaltic pump (5) is fixedly connected to the side wall of the housing (1), characterized in that, Also includes: A clamp valve one (601) is fixedly connected to the side wall of the housing (1), a clamp valve two (602) is fixedly connected to the side wall of the housing (1), a clamp valve three (603) is fixedly connected to the side wall of the housing (1), a flow sensor (8) is fixedly connected to the side wall of the housing (1), a pressure transmitter assembly (9) is fixedly connected to the side wall of the housing (1), and a pressure sensor extension line (901) is fixedly connected to the side wall of the pressure transmitter assembly (9). An interface assembly (10) is fixedly connected to the side wall of the outer shell (1), a label printer (11) is fixedly connected to the top of the outer shell (1), a pipeline comb (13) is fixedly connected to the side wall of the outer shell (1), and a disposable assembly pipeline (12) is fixedly connected to the inner wall of the peristaltic pump (5). The disposable assembly pipeline (12) includes a hose (1201) fixedly connected to the inner wall of the peristaltic pump (5), a disposable pressure sensor (1202) fixedly connected to the side wall of the housing (1), and the end of the pressure sensor extension line (901) away from the pressure transmitter assembly (9) fixedly connected to the side of the disposable pressure sensor (1202). The disposable assembly pipeline (12) also includes a liquid collection bottle and an air filter (1203) that are connected to the end of the hose (1201) away from the peristaltic pump (5). Two transmission pipes (1204) are connected to the side wall of the hose (1201). A switch valve (1205) is connected to the end of the two transmission pipes (1204) away from the hose (1201). Five switch valve outlet channels (1206) are connected to the side wall of the two switch valves (1205). A switch valve assembly (7) is rotatably connected to the inner wall of the switch valve (1205). An annular baffle plate (701) is rotatably connected to the inner wall of the switching valve (1205), and a handle (702) is fixedly connected to the side wall of the annular baffle plate (701). A control component (130) is fixedly connected to the end of the liquid outlet channel (1206) of the switching valve away from the switching valve (1205). The control assembly (130) also includes a fixed bracket (131) fixedly connected to the outer wall of the liquid outlet channel (1206) of the switch valve. A pry plate (132) is rotatably connected to the side wall of the fixed bracket (131). A hydraulic tank (133) is fixedly connected to the bottom of the fixed bracket (131). A piston plate (134) is slidably connected to the inner wall of the hydraulic tank (133). The control assembly (130) further includes a fixed plate (135) rotatably connected to the bottom of the piston plate (134), and a push plate (136) is rotatably connected to one end of the fixed plate (135) away from the piston plate (134). The side wall of the push plate (136) is fixedly connected to the side wall of the pry plate (132). The control component (130) further includes a transmission pipe (137) that is connected through to the side wall of the hydraulic tank (133). A fixed block (138) is connected through to one end of the transmission pipe (137) away from the hydraulic tank (133). The outer wall of the fixed block (138) is fixedly connected to the inner wall of the liquid outlet channel (1206) of the switch valve. A hydraulic telescopic rod (139) is connected through to the side wall of the fixed block (138). A sliding block (1310) is rotatably connected to one end of the hydraulic telescopic rod (139) away from the fixed block (138). A circular baffle (1311) is slidably connected to the outer wall of the sliding block (1310). The outer wall of the circular baffle (1311) is rotatably connected to the inner wall of the liquid outlet channel (1206) of the switch valve. A sealing plate (1312) is fixedly connected to the inner wall of the liquid outlet channel (1206) of the switch valve.

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