Desktop type liquid split charging system

Abstract

The invention relates to the technical field of liquid subpackaging, and discloses a desktop type liquid subpackaging system which comprises a shell, a heat dissipation groove is formed in the side wall of the shell, an embedded groove is formed in the top of the shell, and before use, it is ensured that the output ends of liquid outlet channels of a plurality of switch valves are connected with a to-be-subpackaged sample containing bag, and a power source of a peristaltic pump is switched on; the peristaltic pump drives an internal solution to generate peristaltic transmission through the hose, when the liquid flows along the inner wall of the hose, internal air is forced to enter the liquid collecting bottle and the air filter along the inner wall of the hose, and when no air exists in the hose, the third pinch valve is closed to limit the liquid in the hose from entering the liquid collecting bottle and the air filter; and at the moment, the handle is swung downwards, so that the holes of the annular baffle plate are overlapped with the switch valve liquid outlet channels, the solution in the transmission pipe enters the switch valve liquid outlet channels through the switch valves, the solution enters the to-be-subpackaged sample containing bag, and the subpackaging procedure of the equipment is completed.

Description

Technical Field

[0001] The invention relates to the technical field of liquid dispensing equipment, in particular to a desktop liquid dispensing system. Background Art

[0002] With the rapid development of biotechnology and the continuous growth of the pharmaceutical industry, the requirements for drug quality control, production efficiency and cost control are increasing. The traditional manual packaging method is not only time-consuming and labor-intensive, but also difficult to ensure packaging accuracy and aseptic conditions, which can easily lead to batch differences and affect product quality. Therefore, the desktop liquid packaging system came into being. It uses modern sensor technology, precision mechanical design and automated control software to achieve fast and accurate packaging of liquids from small to medium batches.

[0003] Problems with existing technologies: 1. Accuracy limitations: The existing filling systems lack accuracy, especially the repeatability control during continuous operation. 2. Compatibility and flexibility: Different types of liquids have different adaptability requirements for filling equipment. Existing systems often perform poorly when handling special liquids, or require frequent replacement of accessories and adjustment of parameters. 3. Cost and maintenance: High-performance filling equipment is expensive and complex to maintain, which is a major burden for small and medium-sized enterprises or laboratories. At the same time, the intelligence and user-friendliness of the system need to be improved to reduce the difficulty of operation 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. Sterility and cleanliness: In the pharmaceutical and biotechnology fields, aseptic operation is key. Although existing systems have taken measures to maintain a sterile environment, there are still risks in sterility assurance under long-term operation or complex processes. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a desktop liquid dispensing system, comprising a shell, a heat dissipation groove is provided at the side wall of the shell, an embedded groove is provided at the top of the shell, a printer interface is fixedly connected to the inner wall of the embedded groove, a human-machine interaction interface is fixedly connected to the side wall of the shell, an emergency stop button is fixedly connected to the side wall of the shell, a buzzer is fixedly connected to the side wall of the shell, and a peristaltic pump is fixedly connected to the side wall of the shell;

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

[0006] Preferably, the side wall of the shell is fixedly connected with an interface assembly, the top of the shell is fixedly connected with a label printer, the side wall of the shell is fixedly connected with a pipeline sorting comb, and the inner wall of the peristaltic pump is fixedly connected with a disposable assembly pipeline. After setting the process parameters such as the subpackaging weight on the human-machine interface, click the start button on the human-machine interface screen. During the assembly process, the disposable pressure sensor and flow sensor 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 for display and storage. If the emergency stop button is pressed during the subpackaging process, the buzzer will sound and light alarm, and the peristaltic pump will stop running.

[0007] Preferably, the disposable assembly pipeline includes a hose fixedly connected to the inner wall of the peristaltic pump, a disposable pressure sensor fixedly connected to the side wall of the housing, and the end of the pressure sensor extension line away from the pressure transmitter assembly is fixedly connected to the side of the disposable pressure sensor. If other alarm items are triggered during the packaging process, such as the disposable pressure sensor monitoring pressure exceeds the alarm value, the buzzer will also sound and light alarms. After each sample is packaged, the label printer automatically prints a label, and the interface combination can be expanded to connect more instruments or meters to improve the accuracy of equipment packaging.

[0008] Preferably, the disposable assembly pipeline also includes a liquid collection bottle and an air filter which are connected through the end of the hose away from the peristaltic pump, two transmission tubes are connected through the side wall of the hose, and the ends of the two transmission tubes away from the hose are connected through a switch valve, and five switch valve liquid outlet channels are connected through the side walls of the two switch valves, and a switch valve assembly is rotatably connected to the inner wall of the switch valve. Before use, the discharge end of the hose is connected to the external pipeline, and ensure that the clamping valve one, the clamping valve two, and the clamping valve three are in the open state, and ensure that the output ends of the multiple switch valve liquid outlet channels are connected to the sample container bag to be packaged, and the sample container bag to be packaged is placed on the top of the prying plate.

[0009] Preferably, an annular baffle plate is rotatably connected to the inner wall of the switch valve, a handle is fixedly connected to the side wall of the annular baffle plate, and a control component is fixedly connected to one end of the switch valve liquid outlet channel away from the switch valve. The power of the peristaltic pump is turned on, and the peristaltic pump drives the internal solution to peristaltically transmit through the hose. When the liquid flows along the inner wall of the hose, it will push the air inside the hose to move synchronously, forcing the internal air to enter the liquid collection bottle and the air filter along the inner wall of the hose. When there is no air inside the hose, the clamping valve three is closed to limit the liquid inside the hose from entering the liquid collection bottle and the air filter. At this time, the handle is swung downward to make the holes of the annular baffle plate coincide with the multiple switch valve liquid outlet channels, so that the solution inside the transmission tube enters the switch valve liquid outlet channel through the switch valve, and the solution enters the sample container bag to be packaged, thereby completing the packaging process of the equipment.

[0010] Preferably, the control component also includes a fixing frame fixedly connected to the outer wall of the liquid outlet channel of the switch valve, a prying plate is rotatably connected to the side wall of the fixing frame, a hydraulic box is fixedly connected to the bottom of the fixing frame, and a piston plate is slidably connected to the inner wall of the hydraulic box.

[0011] Preferably, the control assembly also includes a fixed plate rotatably connected to the bottom of the piston plate, an end of the fixed plate away from the piston plate is rotatably connected to a push plate, and a side wall of the push plate is fixedly connected to the side wall of the prying plate.

[0012] Preferably, the control component also includes a long transmission tube connected through the side wall of the hydraulic box, the end of the long transmission tube away from the hydraulic box is connected through a fixed block, the outer wall of the fixed block is fixedly connected to the inner wall of the liquid outlet channel of the switch valve, a hydraulic telescopic rod is connected through the side wall of the fixed block, the end of the hydraulic telescopic rod away from the fixed block is rotatably connected to a sliding block, the outer wall of the sliding block is slidably connected to a circular baffle, the outer wall of the circular baffle is rotatably connected to the inner wall of the liquid outlet channel of the switch valve, and the inner wall of the liquid outlet channel of the switch valve is fixedly connected to a sealing plate. Due to the difference in height between the two switch valves, after the equipment completes the exhaust process, the water pressure on the bottom switch valve is higher than that on the top switch valve. At this time, when the switch valve outlet channel is divided, the bottommost liquid to be divided will appear The sample bag is full, but the top sample bag is not full. To solve the above problem, a pipeline sorting comb is provided inside the equipment. When the solution enters the sample bag through the outlet channel of the switch valve, as the solution inside the sample bag increases, the prying plate will be pressed to rotate downward, forcing the push plate at the other end to tilt upward. The push plate drives the piston plate to move upward along the inner wall of the hydraulic box, forcing the hydraulic oil inside the hydraulic box to enter the hydraulic telescopic rod through the transmission long tube and the fixed block, forcing the hydraulic telescopic rod to extend. The extension of the hydraulic telescopic rod forces the circular baffle to rotate around the connection point and contact the side wall of the sealing plate, so that the inside of the outlet channel of the switch valve is sealed, as shown in the figure. Figure 8 In the state shown in the figure, during this process, as the distance between the circular baffle and the inner wall of the liquid outlet channel of the switch valve gradually decreases, the resistance encountered by the corresponding liquid outlet channel of the switch valve increases. The increased resistance encountered by the corresponding liquid outlet channel of the switch valve will limit the speed at which the solution enters the sample bag to be packaged. Through the application of the above components, the feeding speeds of multiple sample bags to be packaged are kept close, thereby preventing the sample bag to be packaged at the bottom from being subjected to greater pressure during the filling process, causing expansion and rupture.

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

[0014] (1) Improve production efficiency and quality: A high degree of automation and intelligence reduces manual intervention, increases production speed, and ensures high quality of each packaging, reducing defective product rates.

[0015] (2) Reduce operating costs: Quick replacement of pipelines and simple maintenance reduce downtime and labor costs. Disposable components reduce the risk of cross-contamination and reduce indirect costs such as cleaning validation.

[0016] (3) Enhanced flexibility and market response speed: The ability to quickly adapt to different packaging needs enables companies to quickly respond to changes in market demand and shorten the time it takes to bring new products to market.

[0017] (4) The present invention improves 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 comply with international certification and regulatory requirements.

[0018] (5) In the present invention, due to the difference in height between the two switch valves, after the equipment completes the exhaust process, the water pressure on the bottom switch valve is higher than that on the top switch valve. At this time, when the switch valve outlet channel is dividing the material, the bottom sample container bag to be divided will be filled, while the top sample container bag to be divided will not be filled. In order to solve the above problem, a pipeline sorting comb is arranged inside the equipment. When the solution enters the sample container bag to be divided through the switch valve outlet channel, as the solution in the sample container bag to be divided increases, the prying plate will be pressed to rotate downward, forcing the push plate at the other end to tilt upward, and the push plate drives the piston plate to move upward along the inner wall of the hydraulic box, forcing the hydraulic oil in the hydraulic box to enter the hydraulic telescopic rod through the transmission long tube and the fixed block, forcing the hydraulic telescopic rod to extend. The extension of the hydraulic telescopic rod forces the circular baffle to rotate around the connection point and contact the side wall of the sealing plate, so that the inside of the switch valve outlet channel forms a sealed state, presenting as shown in the figure. Figure 8 In the state shown in the figure, during this process, as the distance between the circular baffle and the inner wall of the liquid outlet channel of the switch valve gradually decreases, the resistance encountered by the corresponding liquid outlet channel of the switch valve increases. The increased resistance encountered by the corresponding liquid outlet channel of the switch valve will limit the speed at which the solution enters the sample bag to be packaged. Through the application of the above components, the feeding speeds of multiple sample bags to be packaged are kept close, thereby preventing the sample bag to be packaged at the bottom from being subjected to greater pressure during the filling process, causing expansion and rupture. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1 It is a front schematic diagram of the overall structure of the present invention;

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

[0022] Figure 3 It 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 a switch valve assembly of the present invention;

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

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

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

[0027] Figure 8 For the present invention Figure 7 A is an enlarged schematic diagram;

[0028] Fig. 9 For the present invention Figure 7 A magnified schematic diagram of B.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] In the figure: 1. Shell; 101. Heat sink; 102. Embedded groove; 103. Printer interface; 2. Human-computer interface; 3. Emergency stop button; 4. Buzzer; 5. Peristaltic pump; 601. Pinch valve 1; 602. Pinch valve 2; 603. Pinch valve 3; 7. Switch valve assembly; 701. Annular baffle plate; 702. Handle; 8. Flow sensor; 9. Pressure transmitter assembly; 901. Pressure sensor extension cable; 10. Interface assembly; 11. Label printer; 13. Pipeline sorting comb; 12. Disposable assembly pipe 1201, hose; 1202, disposable pressure sensor; 1203, liquid collection bottle and air filter; 1204, transmission pipe; 1205, switch valve; 1206, switch valve outlet channel; 130, control component; 131, fixed frame; 132, prying plate; 133, hydraulic box; 134, piston plate; 135, fixed plate; 136, push plate; 137, transmission long tube; 138, fixed block; 139, hydraulic telescopic rod; 1310, sliding block; 1311, circular baffle; 1312, sealing plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] For example, see Figure 1-Figure 4 The present invention is a desktop liquid dispensing system, comprising a shell 1, a heat dissipation slot 101 is provided at the side wall of the shell 1, an embedded groove 102 is provided at the top of the shell 1, a printer interface 103 is fixedly connected to the inner wall of the embedded groove 102, a human-machine interaction interface 2 is fixedly connected to the side wall of the shell 1, an emergency stop button 3 is fixedly connected to the side wall of the shell 1, a buzzer 4 is fixedly connected to the side wall of the shell 1, and a peristaltic pump 5 is fixedly connected to the side wall of the shell 1;

[0033] A pinch valve 1 601 is fixedly connected to the side wall of the shell 1, a pinch valve 2 602 is fixedly connected to the side wall of the shell 1, a pinch valve 3 603 is fixedly connected to the side wall of the shell 1, a flow sensor 8 is fixedly connected to the side wall of the shell 1, a pressure transmitter assembly 9 is fixedly connected to the side wall of the shell 1, and a pressure sensor extension line 901 is fixedly connected to the side wall of the pressure transmitter assembly 9.

[0034] The side wall of the housing 1 is fixedly connected with an interface assembly 10, the top of the housing 1 is fixedly connected with a label printer 11, the side wall of the housing 1 is fixedly connected with a pipeline sorting comb 13, and the inner wall of the peristaltic pump 5 is fixedly connected with a disposable assembly pipeline 12. After setting the process parameters such as the subpackaging 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 the flow sensor 8 collect data and transmit it to the PLC control system and the electrical system. The PLC processes the data and transmits it to the human-machine interface 2 for display and storage. If the emergency stop button 3 is pressed during the subpackaging process, the buzzer 4 will emit an audible and visual alarm, and the peristaltic pump 5 will stop running.

[0035] 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 is fixedly connected to the side of the disposable pressure sensor 1202. If other alarm items are triggered during the packaging process, such as the disposable pressure sensor 1202 monitoring pressure exceeds the alarm value, the buzzer 4 will also sound and light alarms. After each sample is packaged, the label printer 11 automatically prints a label, and the interface assembly 10 can be expanded to connect more instruments or meters to improve the accuracy of equipment packaging.

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

[0037] The inner wall of the switch valve 1205 is rotatably connected to an annular baffle plate 701, and the side wall of the annular baffle plate 701 is fixedly connected to a handle 702. The end of the switch valve outlet channel 1206 away from the switch valve 1205 is fixedly connected to the control component 130. When the power of the peristaltic pump 5 is turned on, the peristaltic pump 5 drives the internal solution to peristaltically transmit through the hose 1201. When the liquid flows along the inner wall of the hose 1201, it will push 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. and the inside of the air filter 1203. When there is no air in the hose 1201, close the clamping valve 3 603 to limit the liquid in the hose 1201 from entering the liquid collection bottle and the air filter 1203. At this time, swing the handle 702 downward to make the holes of the annular baffle plate 701 coincide with the multiple switch valve liquid outlet channels 1206, so that the solution in the transmission tube 1204 enters the switch valve liquid outlet channel 1206 through the switch valve 1205, and the solution enters the sample container bag to be packaged, thereby completing the packaging process of the equipment.

[0038] For example 2, please refer to Figure 5-Figure 9 The present invention is a desktop liquid filling system. On the basis of the first embodiment, the control component 130 also includes a fixing frame 131 fixedly connected to the outer wall of the switch valve liquid outlet channel 1206, a prying plate 132 is rotatably connected to the side wall of the fixing frame 131, a hydraulic box 133 is fixedly connected to the bottom of the fixing frame 131, and a piston plate 134 is slidably connected to the inner wall of the hydraulic box 133.

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

[0040] The control component 130 also includes a long transmission tube 137 that is connected through the side wall of the hydraulic box 133. The end of the long transmission tube 137 away from the hydraulic box 133 is connected through a fixed block 138. The outer wall of the fixed block 138 is fixedly connected to the inner wall of the switch valve outlet channel 1206. A hydraulic telescopic rod 139 is connected through the side wall of the fixed block 138. The end of the hydraulic telescopic rod 139 away from the fixed block 138 is rotatably connected to a sliding block 1310. The outer wall of the sliding block 1310 is slidably connected to a circular baffle 1311. The outer wall of the circular baffle 1311 is rotatably connected to the inner wall of the switch valve outlet channel 1206. The inner wall of the switch valve outlet channel 1206 is fixedly connected to a sealing plate 1312. Due to the difference in height between the two switch valves 1205, after the equipment completes the exhaust process, the water pressure on the bottom switch valve 1205 is higher than that on the top switch valve 1205. At this time, the switch valve outlet channel 1206 is divided. When the material is being dispensed, the sample bag at the bottom may be full, while the sample bag at the top may not be full. To solve the above problem, a pipeline sorting comb 13 is provided inside the device. When the solution enters the sample bag to be dispensed through the switch valve outlet channel 1206, as the solution inside the sample bag to be dispensed increases, the prying plate 132 will be pressed to rotate downward, forcing the push plate 136 at the other end to tilt upward, and the push plate 136 drives the piston plate 134 to move upward along the inner wall of the hydraulic box 133, forcing the hydraulic oil inside the hydraulic box 133 to enter the hydraulic telescopic rod 139 through the transmission long tube 137 and the fixed block 138, forcing 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, so that the inside of the switch valve outlet channel 1206 forms a sealed state, presenting a Figure 8 The state shown in the figure, and in this process, as the distance between the circular baffle 1311 and the inner wall of the switch valve liquid outlet channel 1206 gradually decreases, the corresponding switch valve liquid outlet channel 1206 encounters increased resistance during transmission, and the increased resistance encountered by the corresponding switch valve liquid outlet channel 1206 will limit the speed at which the solution enters the sample bag to be packaged. Through the application of the above components, the feeding speeds of multiple sample bags to be packaged are kept close, thereby preventing the bottom sample bag to be packaged from being subjected to greater pressure during the filling process, causing expansion and rupture.

[0041] A specific application of this embodiment is: before use, the present invention connects the discharge end of the hose 1201 to the external pipeline, ensures that the clamp valve 1 601, the clamp valve 2 602, and the clamp valve 3 603 are in the open state, and ensures that the output ends of the multiple switch valve liquid outlet channels 1206 are connected to the sample container bag to be dispensed, and the sample container bag to be dispensed is placed on the top of the prying plate 132. At this time, the power supply of the peristaltic pump 5 is turned on, and the peristaltic pump 5 drives the internal solution to peristaltically transmit through the hose 1201. When the liquid flows along the inner wall of the hose 1201, it will push the air inside the hose 1201 to move synchronously , forcing the internal air to enter the liquid collection bottle and the air filter 1203 along the inner wall of the hose 1201. When there is no air in the hose 1201, close the clamping valve 3 603 to limit the liquid in the hose 1201 from entering the liquid collection bottle and the air filter 1203. At this time, swing the handle 702 downward to make the holes in the annular baffle plate 701 coincide with the multiple switch valve liquid outlet channels 1206, so that the solution in the transmission tube 1204 enters the switch valve liquid outlet channel 1206 through the switch valve 1205, and the solution enters the sample container bag to be packaged, thereby completing the packaging process of the equipment.

[0042] After setting the process parameters such as the packaging weight in the human-machine interaction interface 2, click the start button in the screen of the human-machine interaction interface 2. 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 the electrical system. The PLC processes the data and transmits it to the human-machine interaction interface 2 for display and storage. If the emergency stop button 3 is pressed during the packaging process, the buzzer 4 will emit an audible and visual alarm, and the peristaltic pump 5 will stop running. If other alarm items are triggered during the packaging process, such as the disposable pressure sensor 1202 monitoring pressure exceeds the alarm value, the buzzer 4 will also emit an audible and visual alarm. After each sample is packaged, the label printer 11 automatically prints a label, and the interface combination 10 can be expanded to connect more instruments or meters to improve the accuracy of equipment packaging.

[0043] Among them, due to the difference in height between the two switch valves 1205, after the equipment completes the exhaust process, the water pressure on the bottom switch valve 1205 is higher than that on the top switch valve 1205. At this time, when the switch valve outlet channel 1206 is dividing the material, the bottom sample container bag to be divided will be filled, while the top sample container bag to be divided will not be filled. In view of the above problem, a pipeline sorting comb 13 is provided inside the equipment. When the solution enters the sample container bag to be divided through the switch valve outlet channel 1206, as the solution inside the sample container bag to be divided increases , the prying plate 132 will be pressed to rotate downward, forcing the push plate 136 at the other end to tilt upward, and the push plate 136 drives the piston plate 134 to move upward along the inner wall of the hydraulic box 133, forcing the hydraulic oil inside the hydraulic box 133 to enter the hydraulic telescopic rod 139 through the transmission long tube 137 and the fixing block 138, forcing 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 as the center, and contact the side wall of the sealing plate 1312, so that the inside of the switch valve outlet channel 1206 forms a sealed state, presenting as shown in the figure. Figure 8 The state shown in the figure, and in this process, as the distance between the circular baffle 1311 and the inner wall of the switch valve liquid outlet channel 1206 gradually decreases, the corresponding switch valve liquid outlet channel 1206 encounters increased resistance during transmission, and the increased resistance encountered by the corresponding switch valve liquid outlet channel 1206 will limit the speed at which the solution enters the sample bag to be packaged. Through the application of the above components, the feeding speeds of multiple sample bags to be packaged are kept close, thereby preventing the bottom sample bag to be packaged from being subjected to greater pressure during the filling process, causing expansion and rupture.

[0044] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A desktop liquid dispensing system, comprising a housing (1), a heat dissipation slot (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 interaction 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 pinch valve 1 (601) is fixedly connected to the side wall of the housing (1), a pinch valve 2 (602) is fixedly connected to the side wall of the housing (1), a pinch valve 3 (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).

2. The desktop liquid dispensing system according to claim 1, characterized in that: An interface assembly (10) is fixedly connected to the side wall of the housing (1), a label printer (11) is fixedly connected to the top of the housing (1), a pipeline tidying comb (13) is fixedly connected to the side wall of the housing (1), and a disposable assembly pipeline (12) is fixedly connected to the inner wall of the peristaltic pump (5).

3. The desktop liquid dispensing system according to claim 2, characterized in that: The disposable assembly pipeline (12) comprises a hose (1201) fixedly connected to the inner wall of the peristaltic pump (5), a disposable pressure sensor (1202) is 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) is fixedly connected to the side of the disposable pressure sensor (1202).

4. The desktop liquid dispensing system according to claim 3, characterized in that: The disposable assembly pipeline (12) also includes a liquid collection bottle and an air filter (1203) which are connected to the end of the hose (1201) away from the peristaltic pump (5); two transmission tubes (1204) are connected to the side wall of the hose (1201); one end of the two transmission tubes (1204) away from the hose (1201) is connected to a switch valve (1205); five switch valve liquid outlet channels (1206) are connected to the side walls of the two switch valves (1205); and a switch valve assembly (7) is rotatably connected to the inner wall of the switch valve (1205).

5. The desktop liquid dispensing system according to claim 4, characterized in that: An annular material baffle plate (701) is rotatably connected to the inner wall of the switch valve (1205), a handle (702) is fixedly connected to the side wall of the annular material baffle plate (701), and a control component (130) is fixedly connected to one end of the switch valve liquid outlet channel (1206) away from the switch valve (1205).

6. The desktop liquid dispensing system according to claim 5, characterized in that: The control assembly (130) further comprises a fixing frame (131) fixedly connected to the outer wall of the switch valve liquid outlet channel (1206), a prying plate (132) being rotatably connected to the side wall of the fixing frame (131), a hydraulic box (133) being fixedly connected to the bottom of the fixing frame (131), and a piston plate (134) being slidably connected to the inner wall of the hydraulic box (133).

7. The desktop liquid dispensing system according to claim 6, characterized in that: The control assembly (130) further comprises a fixed plate (135) rotatably connected to the bottom of the piston plate (134); one end of the fixed plate (135) away from the piston plate (134) is rotatably connected to a push plate (136); and a side wall of the push plate (136) is fixedly connected to a side wall of the prying plate (132).

8. The desktop liquid dispensing system according to claim 7, characterized in that: The control component (130) further comprises a long transmission tube (137) which is connected to the side wall of the hydraulic box (133); the end of the long transmission tube (137) which is away from the hydraulic box (133) is connected to a fixed block (138); the outer wall of the fixed block (138) is fixedly connected to the inner wall of the switch valve outlet passage (1206); the side wall of the fixed block (138) is connected to a hydraulic telescopic rod (139); the end of the hydraulic telescopic rod (139) which is away from the fixed block (138) is rotatably connected to a sliding block (1310); the outer wall of the sliding block (1310) is slidably connected to a circular baffle (1311); the outer wall of the circular baffle (1311) is rotatably connected to the inner wall of the switch valve outlet passage (1206); the inner wall of the switch valve outlet passage (1206) is fixedly connected to a sealing plate (1312).

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