Closed pipeline control device for realizing calibration, split charging and exhaust

Abstract

The embodiment of the utility model discloses a closed pipeline control device for realizing calibration, split charging and exhaust, which comprises a pipeline, a bracket, a control unit, a peristaltic pump, an air filter, a bubble sensor group and a pinch valve group, the bubble sensor group and the pinch valve group are respectively connected on the bracket, the peristaltic pump is connected on the bracket, and the control unit is connected on the bracket. One end of the pipeline is connected with the stock solution bag, the other end of the pipeline passes through the peristaltic pump, the other end of the pipeline is further connected with a plurality of branch pipes, the branch pipes are connected with sub-packaging bags, a first groove body is arranged in the bubble sensor group, and the branch pipes are clamped in the first groove body; a second groove body is arranged in the pinch valve group, and the branch pipe is clamped in the second groove body; the pipeline is further connected with an air filter, and the control unit is connected with the peristaltic pump, the bubble sensor set and the pinch valve set. By implementing the device disclosed by the embodiment of the utility model, a sealed pipeline system can be adopted, so that the device has lower background environment requirements and pollution risks, higher subpackaging precision, more thorough bubble removal and higher safety and reliability during cryopreservation.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline control devices, in particular to a closed pipeline control device for realizing calibration, subpackaging and exhaust. Background Art

[0002] In the process of cell culture, the culture medium and other materials must be packaged. Generally, an open packaging method is used, that is, the material to be packaged is placed in a container or pipe, and then it is packaged into the target container one by one by manual or automatic devices. Generally, a pipette is used for manual operation, which requires operation in a clean environment such as a Class A laboratory or a biological safety cabinet. The cost is relatively high and the efficiency is relatively low; the packaging accuracy may be affected by the operator's skill level and the quality of the device, resulting in a large deviation in repeatability; there is a problem of incomplete bubble removal, which may affect the packaging quality; during cryopreservation, if bubbles or air enter the liquid, there may be a risk of bursting the liquid bag.

[0003] In summary, the existing open packaging method has high requirements for the background environment, has the risk of contamination, has no calibration, has large deviations in repeatability, some bubbles cannot be removed cleanly, and there is a risk of bursting the liquid bag during frozen storage.

[0004] Therefore, it is necessary to design a new device that adopts a sealed piping system with lower background environment requirements and contamination risks, higher packaging accuracy, more thorough bubble removal, and safer and more reliable freezing. Utility Model Content

[0005] The utility model aims to overcome the defects of the prior art and provide a closed pipeline control device for realizing calibration, subpackaging and exhaust.

[0006] In order to solve the above technical problems, the purpose of the utility model is achieved through the following technical solutions: providing a closed pipeline control device for realizing calibration, subpackaging and exhaust, including a pipeline, a bracket, a control unit, a peristaltic pump, an air filter, a bubble sensor group and a clamping valve group, the bubble sensor group and the clamping valve group are respectively connected to the bracket, the peristaltic pump is connected to the bracket, one end of the pipeline is connected to the original liquid bag, the other end of the pipeline passes through the peristaltic pump, the other end of the pipeline is also connected to a plurality of branch pipes, the branch pipes are connected to the subpackaging bag, a first slot body is provided in the bubble sensor group, and the branch pipe is clamped in the first slot body; a second slot body is provided in the clamping valve group, and the branch pipe is clamped in the second slot body; the air filter is also connected to the pipeline, and the control unit is respectively connected to the peristaltic pump, the bubble sensor group and the clamping valve group.

[0007] A further technical solution is as follows: the bubble sensor group includes a first bubble sensor, the pinch valve group includes a first pinch valve structure, and the other end of the pipeline passes through the first bubble sensor and the first pinch valve structure in sequence.

[0008] Its further technical solution is: the bubble sensor group includes a plurality of second bubble sensors, the pinch valve group also includes a plurality of second pinch valve structures, one end of the branch pipe is connected to the pipeline, and the other end of the branch pipe is connected to the packaging bag after passing through the second pinch valve structure and the second bubble sensor in sequence.

[0009] A further technical solution is: the bubble sensor group further includes a third bubble sensor and a fourth bubble sensor, and the other end of the pipeline passes through the third bubble sensor and the fourth bubble sensor in sequence.

[0010] Its further technical solution is: the pinch valve group also includes a third pinch valve structure and a fourth pinch valve structure, and the other end of the pipeline passes through the third bubble sensor, the fourth bubble sensor, the third pinch valve structure, and the fourth pinch valve structure in sequence and then returns to one end of the pipeline connected to the peristaltic pump.

[0011] A further technical solution is: the air filter is connected to the pipeline located between the fourth bubble sensor and the third pinch valve structure.

[0012] A further technical solution is that a plurality of branch pipes are arranged at intervals on both sides of the pipeline.

[0013] Its further technical solution is: a liquid bag outlet pipe fixing block is installed on the bracket, the other end of the branch pipe is connected to the sub-packaging bag outlet pipe, and the sub-packaging bag outlet pipe is connected to the liquid bag outlet pipe fixing block.

[0014] A further technical solution is that the dispensing bag outlet pipe is connected to the dispensing bag.

[0015] Its further technical solution is: the first tube clamping valve structure includes a cylinder, a coupling assembly, a tube clamping assembly and a protective cover, the cylinder is connected to the coupling assembly; the coupling assembly is connected to the tube clamping assembly, the tube clamping assembly is built into the protective cover, the tube clamping assembly includes a connecting rod structure and a tube clamping block, the tube clamping block is connected to the connecting rod structure; the connecting rod structure is connected to the coupling assembly, the tube clamping block is rotatably connected to the protective cover, the tube clamping block abuts against the pipeline, and a second groove body is provided in the tube clamping assembly.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the utility model arranges pipelines, brackets, control units, peristaltic pumps, air filters, bubble sensor groups and clamp valve groups, utilizes the ingenious coordination of pipelines, branch pipes, peristaltic pumps, air filters, bubble sensor groups and clamp valve groups, and is controlled by the control unit to realize the use of a sealed pipeline system, which has lower background environment requirements and pollution risks, higher packaging accuracy, more thorough bubble removal, and is safer and more reliable during frozen storage.

[0017] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a closed pipeline control device for realizing calibration, subpackaging and exhaust provided in an embodiment of the utility model;

[0020] Figure 2 A schematic diagram of a top view of a closed pipeline control device for realizing calibration, subpackaging and exhaust provided in an embodiment of the utility model;

[0021] Figure 3 A schematic diagram of the front view of a first pinch valve structure provided by an embodiment of the utility model;

[0022] Figure 4 A schematic diagram of an exploded structure of a first pinch valve structure provided by an embodiment of the utility model;

[0023] Figure 5 A schematic diagram of a clamping state of a first pinch valve structure provided in an embodiment of the utility model (without the protective cover);

[0024] Figure 6 A schematic diagram of the loosened state of the first pinch valve structure provided in an embodiment of the utility model (without the protective cover).

[0025] Description of the symbols in the figure:

[0026] 10. Pipeline; 20. Bracket; 21. Liquid bag outlet fixing block; 30. Peristaltic pump; 40. Air filter; 50. First bubble sensor; 51. Second bubble sensor; 52. Third bubble sensor; 53. Fourth bubble sensor; 60. First clamp valve structure; 610. Cylinder; 611. Output shaft; 620. Push rod sleeve; 621. Connecting push rod; 622. Limit rod; 630. Connecting block; 631. Connecting rod; 632. Clamp block; 640. Protective cover; 650. Fixing block; 61. Second clamp valve structure; 62. Third clamp valve structure; 63. Fourth clamp valve structure; 70. Branch. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0029] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0030] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0031] See also Figure 1 , Figure 1 A three-dimensional structural schematic diagram of a closed pipeline control device for realizing calibration, packaging and exhaust provided in an embodiment of the utility model can be used in a closed pipeline packaging scenario to realize the use of a sealed pipeline system, with lower background environment requirements and pollution risks, higher packaging accuracy, more thorough bubble removal, and safer and more reliable during frozen storage.

[0032] See also Figure 1 and Figure 2The above-mentioned closed pipeline control device for realizing calibration, subpackaging and exhaust comprises a pipeline 10, a bracket 20, a control unit, a peristaltic pump 30, an air filter 40, a bubble sensor group and a clamp valve group. The bubble sensor group and the clamp valve group are respectively connected to the bracket 20, the peristaltic pump 30 is connected to the bracket 20, one end of the pipeline 10 is connected to the stock liquid bag, the other end of the pipeline 10 passes through the peristaltic pump 30, and the other end of the pipeline 10 is also connected to a plurality of branch pipes 70, the branch pipes 70 are connected to the subpackaging bag, the bubble sensor group is provided with a first slot body, and the branch pipe 70 is stuck in the first slot body; the clamp valve group is provided with a second slot body, and the branch pipe 70 is stuck in the second slot body. The pipeline 10 is also connected to the air filter 40, and the control unit is respectively connected to the peristaltic pump 30, the bubble sensor group and the clamp valve group.

[0033] In this embodiment, the liquid in the stock liquid bag is transported to the peristaltic pump 30 through the pipeline 10, and the peristaltic pump 30 is responsible for pushing the liquid to the other end of the pipeline 10. The other end of the pipeline 10 is connected to a plurality of branch pipes 70, and the bubble sensor group is connected to the branch pipe 70 to detect whether there are bubbles in the pipeline 10 and remove them in time. The clamping valve group is connected to the branch pipe 70 to control the flow direction and flow rate of the liquid and realize the subpackaging function. The pipeline 10 is connected to an air filter 40 for filtering impurities in the air to ensure the purity of the liquid during the transmission process. The control unit accurately controls the peristaltic pump 30, the air filter 40, the bubble sensor group and the clamping valve group to ensure that the calibration, subpackaging and exhaust processes are stable and reliable.

[0034] In one embodiment, see Figure 1 and Figure 2 The bubble sensor group includes a first bubble sensor 50, the pinch valve group includes a first pinch valve structure 60, and the other end of the pipeline 10 passes through the first bubble sensor 50 and the first pinch valve structure 60 in sequence.

[0035] In one embodiment, see Figure 1 and Figure 2 The bubble sensor group includes a plurality of second bubble sensors 51, and the clamping valve group also includes a plurality of second clamping valve structures 61. One end of the branch pipe 70 is connected to the pipeline 10, and the other end of the branch pipe 70 is connected to the packaging bag after passing through the second clamping valve structure 61 and the second bubble sensor 51 in sequence.

[0036] In one embodiment, see Figure 1 and Figure 2 The bubble sensor group further includes a third bubble sensor 52 and a fourth bubble sensor 53 , and the other end of the pipeline 10 passes through the third bubble sensor 52 and the fourth bubble sensor 53 in sequence.

[0037] The first bubble sensor 50 , the second bubble sensor 51 , the third bubble sensor 52 , and the fourth bubble sensor 53 are all provided with a first groove.

[0038] In one embodiment, see Figure 1 and Figure 2 The clamping valve group also includes a third clamping valve structure 62 and a fourth clamping valve structure 63. The other end of the pipeline 10 passes through the third bubble sensor 52, the fourth bubble sensor 53, the third clamping valve structure 62, and the fourth clamping valve structure 63 in sequence and then returns to one end of the pipeline 10 connected to the peristaltic pump 30.

[0039] In one embodiment, see Figure 1 and Figure 2 The air filter is connected to the pipeline 10 located between the fourth bubble sensor 53 and the third pinch valve structure 62.

[0040] In one embodiment, see Figure 1 and Figure 2 , a plurality of branch pipes 70 are arranged at intervals on both sides of the pipeline 10 .

[0041] In one embodiment, see Figure 1 and Figure 2 A liquid bag outlet pipe fixing block 21 is installed on the bracket 20 , and the other end of the branch pipe 70 is connected to the sub-packaging bag outlet pipe, and the sub-packaging bag outlet pipe is connected to the liquid bag outlet pipe fixing block 21 .

[0042] In one embodiment, see Figure 1 and Figure 2 , the outlet tube of the dispensing bag is connected to the liquid bag.

[0043] The bracket 20 is provided with an inclined surface which is inclined outward from top to bottom, and the above-mentioned liquid bag outlet pipe fixing block 21 is installed on the inclined surface. The setting of the inclined surface can make it easier to discharge the bubbles in the scoring bag due to buoyancy.

[0044] During use, since disposable consumables need to be reinstalled each time, such as the peristaltic pump 30, and the peristaltic pump 30 has certain differences each time it is installed, the device of this embodiment can be used for calibration. Specifically, after all consumables are installed, each branch pipe 70 and the pipeline 10 can be stuck on the corresponding components, such as the pinch valve structure and the bubble sensor and other components, and the pipeline 10 between the third bubble sensor 52 and the fourth bubble sensor 53 is determined to be Vml, the first pinch valve structure 60 and the third pinch valve structure 62 are opened, and the pipe 10 between the third bubble sensor 52 and the fourth bubble sensor 53 is closed. All the second pinch valve structures 61, the peristaltic pump 30 rotates clockwise, when the first bubble sensor 50 detects liquid, that is, when the signal switches from 0 to 1, the motor of the peristaltic pump 30 is reset and starts counting operation, when the third bubble sensor 52 detects liquid, the number of revolutions of the motor of the current peristaltic pump 30 is recorded as N1, when the fourth bubble sensor 53 detects liquid, the number of revolutions of the motor of the current peristaltic pump 30 is recorded as N2, and the precise pump speed of the peristaltic pump 30 after the installation of the consumables is calculated as V / (N2-N1), in units of ml / revolution.

[0045] Furthermore, the subpackaging and exhausting process of the device of this embodiment is as follows:

[0046] After the consumables are correctly installed, each branch tube 70 and pipeline 10 can be stuck on the corresponding components, such as the pinch valve structure and the bubble sensor, and the pump speed calibration process is carried out. At the same time, the pipeline 10 is filled, and the third pinch valve structure 62 is closed to open all the second pinch valve structures 61, and the cell suspension is pumped into the sub-packaging bag connected to the corresponding branch tube 70 according to the set reference and actual pump speed, and then all the second pinch valve structures 61 are closed, and the third pinch valve structure 62 is opened. The peristaltic pump 30 rotates counterclockwise to inhale air through the air filter 40 and push the cell suspension recovered to the pipeline 10 until the first bubble sensor 50 detects the air; the third pinch valve structure 62 and the first pinch valve structure 60 are closed; the fourth pinch valve structure 61 is opened. 63, the peristaltic pump 30 rotates clockwise to open all the second pinch valve structures 61 in sequence, and after the cell suspension in each corresponding branch tube 70 is injected into the sub-packaging bag through air according to the volume of the branch tube 70, all the second pinch valve structures 61 are closed; the process of opening all the second pinch valve structures 61 is to open the first second pinch valve structure 61, and the peristaltic pump 30 rotates counterclockwise to discharge the air in the corresponding branch tube 70 and the liquid belt through the air filter 40 until the first second bubble sensor 51 detects the liquid. At this time, the gas is completely exhausted and the cell suspension is not lost. The sub-packaging bag is tilted and fixed to keep the bubbles at the outlet position. According to this process, the branch tubes 70 corresponding to other second pinch valve structures 61 are vented and other operations are performed in sequence.

[0047] The above-mentioned device realizes the functions of calibration, subpackaging and exhaust, and improves the automation and stability of the production process. Through the cooperation of the bubble sensor group and the clamping valve group, the bubbles in the pipeline 10 can be detected and eliminated in time to ensure the stability and quality of liquid transmission. The application of the air filter 40 can effectively filter impurities in the air and improve the purity of the liquid. The control unit accurately controls each component to ensure the stability and reliability of the entire liquid transmission process. The application of multiple sensors and valve structures makes the device more flexible and diverse, suitable for different production needs.

[0048] In one embodiment, the above-mentioned first clamping valve structure 60, second clamping valve structure 61 and third clamping valve structure 62 are the same, and all include: a cylinder 610, a coupling assembly, a clamping assembly and a protective cover 640, the cylinder 610 is connected to the coupling assembly; the coupling assembly is connected to the clamping assembly, the clamping assembly is built into the protective cover 640, the clamping assembly includes a connecting rod structure and a clamping block 632, the clamping block 632 is connected to the connecting rod structure; the connecting rod structure is connected to the coupling assembly, the clamping block 632 is rotatably connected to the protective cover 640, and a second trough is provided in the clamping assembly.

[0049] In this embodiment, when the cylinder 610 outputs thrust, the thrust is first transmitted to the coupling assembly, and then transmitted to the clamping assembly through the coupling assembly. After the thrust is applied, the clamping assembly rotates under the rotation connection with the protective cover 640, thereby realizing the function of clamping or releasing the liquid pipe by the clamping block 632.

[0050] In one embodiment, see Figure 4 and Figure 5 The above-mentioned cylinder 610 includes an output shaft 611; the coupling assembly includes a push rod sleeve 620 and a coupling push rod 621, one end of the push rod sleeve 620 is connected to the output shaft 611; one end of the coupling push rod 621 is built into the push rod sleeve 620, and one end of the coupling push rod 621 is connected to the clamping tube assembly.

[0051] In one embodiment, see Figure 4 and Figure 5 The above-mentioned coupling assembly also includes a limiting rod 622, which is installed between the push rod sleeve 620 and the coupling push rod 621.

[0052] Specifically, the cylinder 610 includes an output shaft 611, which is connected to the coupling assembly, and the thrust output by the cylinder 610 is transmitted to the coupling assembly. The coupling assembly includes a push rod sleeve 620 and a coupling push rod 621, one end of the push rod sleeve 620 is connected to the output shaft 611, and one end of the coupling push rod 621 is built into the push rod sleeve 620 and connected to the clamping tube assembly. The limit rod 622 is installed between the push rod sleeve 620 and the coupling push rod 621. Among them, the push rod sleeve 620 is sleeved on the outer ring of the coupling push rod 621, and is concentrically matched. The center has a limit rod 622 as the middle part connecting the clamping tube part and the cylinder 610. One end of the push rod sleeve 620 is connected to the output shaft 611 of the cylinder 610 by a thread, and the other end of the coupling push rod 621 is connected to the connecting block 630 of the clamping tube part by a pin.

[0053] It can be seen that the coupling part has a certain stroke buffer part, which is used to convert the large stroke of the cylinder 610 into a small stroke of the clamping part. The overall structural design enables the clamping valve to achieve a relatively large stroke conversion when the volume is relatively small, so that the movement of the clamping part can be controlled more flexibly and accurately in practical applications. The setting of the limit rod 622 also helps to control the stroke range of the clamping part, thereby improving the control accuracy and reliability of the clamping valve.

[0054] The pinch valve has a small overall volume, but can transform the large stroke of the cylinder 610 into a small stroke of the pinch part, thereby improving the compactness and efficiency of the system. The setting of the limit rod 622 and the design of the coupling part enable the pinch valve to achieve precise stroke control, meeting the requirements for high movement accuracy of the pinch part. By designing a reasonable coupling part, the stability and reliability of the pinch valve are enhanced, the service life is extended, and the maintenance cost is reduced.

[0055] In summary, this pinch valve structure design can realize the conversion of large stroke into small stroke under the premise of small volume, improves the control accuracy and reliability, and is suitable for industrial application environments that require precise control.

[0056] In one embodiment, see Figures 4 to 6 The above-mentioned connecting rod structure includes a connecting block 630 and a connecting rod 631, and the connecting block 630 is connected to the connecting rod 621; one end of the tube clamping block 632 is connected to the connecting rod 621 through the connecting block 630, and the end of the tube clamping block 632 connected to the connecting block 630 is rotatably connected to the protective cover 640.

[0057] In one embodiment, see Figures 4 to 6 The number of the tube clamping blocks 632 is two; the two tube clamping blocks 632 are symmetrically arranged along the horizontal axis of the connecting block 630. A second slot is formed between the two tube clamping blocks 632.

[0058] In one embodiment, see Figures 4 to 6 The above-mentioned connecting block 630 is connected to the connecting rod 621 through a pin.

[0059] In one embodiment, see Figure 3 to Figure 4 The protective cover 640 is provided with a cavity for placing the pipe clamping block 632 .

[0060] In one embodiment, see Figure 3 to Figure 4 One end of the clamping block 632 connected to the connecting block 630 is connected to the protective cover 640 through a pin.

[0061] In this embodiment, the connecting rod 631, the connecting block 630 and the tube clamping block 632 form a connecting rod structure, and the connecting rod 631 is connected to the push rod flat core and the tube clamping block 632 by a pin shaft connection. The tube clamping block 632 is fixed in the protective cover 640 and rotates around the pin shaft.

[0062] The clamp assembly adopts a connecting rod structure and is composed of small parts, which makes the overall volume small and suitable for places with limited space. The clamp valve can completely clamp the liquid pipe to ensure the blocking of liquid flow, has a large clamping force, and improves the stability and reliability of the clamp. The clamp assembly is designed with a large loose clamping angle, which will not affect the normal installation of the pipeline, ensuring the flexibility of the layout and connection of the pipeline.

[0063] In one embodiment, see Figures 3 to 6 , a pinch valve structure also includes a fixing block 650 , one end of which is connected to the cylinder 610 .

[0064] In one embodiment, see Figures 3 to 6 , the coupling assembly is built into the fixed block 650.

[0065] In one embodiment, the protective cover 640 is fixed to the other end of the fixing block 650 and is fixed by screws to limit the clamping assembly and protect the connecting block 630 of the clamping assembly from being damaged by collision, thereby extending the service life.

[0066] In this embodiment, the above structure uses pneumatic elements to drive the internal mechanical structure to control the clamping block 632 to clamp or loosen, so that the clamping block 632 can clamp the liquid tube. The structure is fixed and stable, which is more stable than electric drive. The reasonable structural layout saves more space. Specifically, the connecting rod structure is used to convert the linear motion of the cylinder 610 into the rotational motion of the clamping part, thereby realizing the conversion of functions, thereby clamping the liquid tube and blocking the flow of liquid. Through the design of the buffered coupling assembly and the connecting rod structure, the transmission of the movement of the cylinder 610 to the clamping assembly is realized in a smaller space, saving the installation space of the system. The use of the connecting rod structure can make the clamping force of the clamping assembly stable and reliable, ensuring the effect of clamping the tube.

[0067] By setting up a cylinder 610, a coupling assembly, a tube clamping assembly and a protective cover 640, wherein the cylinder 610 drives the coupling assembly to perform linear motion and transmits it to the tube clamping assembly, and the connecting rod structure in the tube clamping assembly converts the linear telescopic motion into the loosening or closing of the tube clamping block 632, thereby overcoming the problems of insufficient motor thrust and inadequate stroke, and improving the stability and reliability of the tube clamping valve.

[0068] The above-mentioned closed pipeline 10 control device for realizing calibration, subpackaging and exhaust, by setting the pipeline 10, the bracket 20, the control unit, the peristaltic pump 30, the air filter 40, the bubble sensor group and the clamping valve group, utilizes the ingenious coordination of the pipeline 10, the branch pipe 70, the peristaltic pump 30, the air filter 40, the bubble sensor group and the clamping valve group, and is controlled by the control unit to realize the use of a sealed pipeline system, which has lower background environment requirements and pollution risks, higher subpackaging accuracy, more thorough bubble removal, and safer and more reliable during freezing.

[0069] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A closed pipeline control device for realizing calibration, subpackaging and exhaust, characterized in that: It includes a pipeline, a bracket, a control unit, a peristaltic pump, an air filter, a bubble sensor group and a clamping valve group, the bubble sensor group and the clamping valve group are respectively connected to the bracket, the peristaltic pump is connected to the bracket, one end of the pipeline is connected to the original liquid bag, the other end of the pipeline passes through the peristaltic pump, the other end of the pipeline is also connected to a plurality of branch pipes, the branch pipes are connected to the sub-packaging bags, a first slot body is provided in the bubble sensor group, and the branch pipe is clamped in the first slot body; a second slot body is provided in the clamping valve group, and the branch pipe is clamped in the second slot body; the air filter is also connected to the pipeline, and the control unit is respectively connected to the peristaltic pump, the bubble sensor group and the clamping valve group.

2. A closed pipeline control device for realizing calibration, subpackaging and exhaust according to claim 1, characterized in that: The bubble sensor group includes a first bubble sensor, the pinch valve group includes a first pinch valve structure, and the other end of the pipeline passes through the first bubble sensor and the first pinch valve structure in sequence.

3. A closed pipeline control device for realizing calibration, subpackaging and exhaust according to claim 2, characterized in that: The bubble sensor group includes a plurality of second bubble sensors, and the pinch valve group also includes a plurality of second pinch valve structures. One end of the branch pipe is connected to the pipeline, and the other end of the branch pipe is connected to the packaging bag after passing through the second pinch valve structure and the second bubble sensor in sequence.

4. A closed pipeline control device for realizing calibration, subpackaging and exhaust according to claim 3, characterized in that: The bubble sensor group further includes a third bubble sensor and a fourth bubble sensor, and the other end of the pipeline passes through the third bubble sensor and the fourth bubble sensor in sequence.

5. A closed pipeline control device for realizing calibration, subpackaging and exhaust according to claim 4, characterized in that: The clamp valve group also includes a third clamp valve structure and a fourth clamp valve structure. The other end of the pipeline passes through the third bubble sensor, the fourth bubble sensor, the third clamp valve structure, and the fourth clamp valve structure in sequence and then returns to one end of the pipeline connected to the peristaltic pump.

6. A closed pipeline control device for realizing calibration, subpackaging and exhaust according to claim 5, characterized in that: The air filter is connected to the pipeline between the fourth air bubble sensor and the third pinch valve structure.

7. A closed pipeline control device for realizing calibration, subpackaging and exhaust according to claim 1, characterized in that: A plurality of branch pipes are arranged at intervals on both sides of the pipeline.

8. A closed pipeline control device for realizing calibration, subpackaging and exhaust according to claim 1, characterized in that: A liquid bag outlet pipe fixing block is installed on the bracket, the other end of the branch pipe is connected to the sub-packaging bag outlet pipe, and the sub-packaging bag outlet pipe is connected to the liquid bag outlet pipe fixing block.

9. A closed pipeline control device for realizing calibration, subpackaging and exhaust according to claim 8, characterized in that: The dispensing bag outlet pipe is connected to the dispensing bag.

10. A closed pipeline control device for realizing calibration, subpackaging and exhaust according to claim 2, characterized in that: The first tube clamping valve structure includes a cylinder, a coupling assembly, a tube clamping assembly and a protective cover, the cylinder is connected to the coupling assembly; the coupling assembly is connected to the tube clamping assembly, the tube clamping assembly is built into the protective cover, the tube clamping assembly includes a connecting rod structure and a tube clamping block, the tube clamping block is connected to the connecting rod structure; the connecting rod structure is connected to the coupling assembly, the tube clamping block is rotatably connected to the protective cover, the tube clamping block abuts against the pipe, and a second groove body is provided in the tube clamping assembly.

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