Hose sample adding system

Abstract

The utility model relates to the technical field of sample adding, in particular to a hose sample adding system which comprises a conveying module, a conveying guide unit and an extrusion module, the conveying module is internally provided with a conveying path for containing a hose, the conveying guide unit is arranged on the conveying path and used for driving the conveying module to move in the set direction, and the extrusion module is arranged far away from the first end of the hose; the extrusion module comprises a first extrusion block and a second extrusion block; the first driving unit is used for controlling the matching relation of the extrusion blocks; a first channel is formed in the first extrusion block, a second channel is formed in the second extrusion block, the extrusion piece further comprises an adjusting shaft used for adjusting the working length of the extrusion piece of the extrusion module, and the liquid suction dosage can be adjusted by adjusting the number of the adjusting shaft penetrating through the second channel. Liquid and gas replacement is completed directly depending on the automatic recovery capacity of the hose, the mechanical structure design of a quantitative scheme can be simplified, and meanwhile higher accuracy is achieved compared with a traditional pump suction type design.

Description

Technical Field

[0001] The utility model relates to the technical field of continuous sampling, and particularly relates to a hose sampling system. Background Art

[0002] In biological laboratories, when performing pipetting operations, the most commonly used pipetting tools are pipettes and pipette tips. Compared with tools such as rubber bulb droppers, pipettes have better precision and accuracy and can meet the pipetting requirements of different volumes. In low-throughput pipetting operations in the laboratory, pipettes can often meet the pipetting needs. When the throughput is slightly higher, multi-channel pipettes and electric pipettes can be applied. However, in ultra-high-throughput large-scale pipetting operations, traditional pipettes are not competent, and at this time, automated equipment plays a very important role.

[0003] Patent application CN113237705A discloses a micro-sampling system, which includes a mounting rack, a cutting assembly, a sample plate, and at least one capillary tube. The cutting assembly includes a cutting knife and a mating block disposed on the mounting rack. The cutting knife is movably disposed on the mating block in a directional manner and cooperates with the mating block. The capillary tube is disposed on the mounting rack in a manner that can reciprocate between the microplate and the cutting knife, so that after the capillary tube contacts the sample or reagent, one end of the capillary tube that has contacted the sample or reagent can be cut through the cooperation of the cutting knife and the mating block. The micro-sampling system further includes a control pump, which is communicated with the capillary tube, and thus the sample extraction amount can be quantitatively adjusted through the control pump.

[0004] However, the equipment of this quantitative liquid suction scheme based on a pressure pump has too large a volume and higher equipment costs. Summary of the Invention

[0005] The purpose of this application is to provide a hose sampling system and a control method, which can partially solve or alleviate the above deficiencies in the prior art and can accurately and quantitatively extract liquid by means of gas-liquid replacement.

[0006] To solve the above-mentioned technical problems, this application specifically adopts the following technical solutions:

[0007] A hose sampling system, comprising:

[0008] A conveying module; a transmission path for accommodating the hose is provided in the conveying module, and a transmission guiding unit is arranged along the transmission path. The transmission guiding unit is used to drive the hose to move in a set direction, wherein the first end of the hose is used for sucking liquid;

[0009] An extrusion module arranged away from the first end of the hose; wherein, the extrusion module includes:

[0010] A receiving space for the hose to pass through;

[0011] At least one side of the receiving space is provided with a squeezing member, and the squeezing member includes: a squeezing block, and a driving unit for driving the squeezing block to switch between a squeezing state and an opening / closing state. Wherein, when the squeezing block is in the squeezing state, the end face of the squeezing block contacts a corresponding area on the hose to squeeze the hose, and at this time, the hose discharges a specific volume of gas under the action of the squeezing block; when the squeezing block switches from the squeezing state to the opening / closing state, the squeezing action of the end face of the squeezing block on the hose gradually decreases, so that the hose gradually inhales the liquid with the same or similar volume as the specific volume.

[0012] In some embodiments, the squeezing block includes: a first squeezing block, and at least one second squeezing block; correspondingly, the squeezing module further includes: a first driving unit for controlling the cooperation relationship between the first squeezing block and the second squeezing block; correspondingly, a first channel is provided in the first squeezing block, a second channel is provided in the second squeezing block, and the squeezing member further includes: an adjusting shaft for adjusting the working length of the squeezing module, and the adjusting shaft can pass through the first channel; wherein, one end of the adjusting shaft is connected to the output end of the first driving unit, and when the adjusting shaft reciprocates in the first direction under the action of the first driving unit, the adjusting shaft will pass through different numbers of the second channels;

[0013] And a second driving unit for controlling the squeezing state or the opening / closing state of the squeezing block. When the squeezing block moves to a first target position under the action of the second driving unit, the squeezing block can exert a squeezing action on the hose; when the squeezing block moves to a second target position under the action of the second driving unit, the squeezing block is in the opening / closing state, and at this time, the hose gradually inhales the liquid with the same or similar volume as the specific volume.

[0014] In some embodiments, the adjusting shaft includes: a first adjusting shaft and a second adjusting shaft, wherein the first adjusting shaft is pre-set inside the first channel, and the second adjusting shaft is connected to the output end of the first driving unit.

[0015] In some embodiments, it includes: a view module provided corresponding to the first end of the hose, and the view module is used to obtain a photo of the liquid level in the hose and determine the capacity of the liquid sample according to the photo of the liquid level.

[0016] In some embodiments, it further includes:

[0017] A support plate, on which a cutting module is provided;

[0018] A support rod, which passes through the support plate, and the first end of the support rod is used to introduce the hose, and the other end of the support rod is connected with an installation chamber, and the transmission module and the extrusion module are arranged inside the installation chamber;

[0019] And a lifting module, which is connected with the support rod and can drive the support rod to reciprocate along the second direction, so as to adjust the distance between the hose output through the installation chamber and the cutting module on the support plate.

[0020] In some embodiments, it further includes: a waste treatment module, which is used to carry the excess liquid sample discharged from the hose, and the position of the waste treatment module and the cutting module on the horizontal plane is different; correspondingly, the support rod is further connected with a rotation module, and the rotation module can drive the support rod to drive the installation chamber to rotate along the set rotation direction, so that the hose extending out through the installation chamber can correspond to the cutting module and the waste treatment module.

[0021] In some embodiments, a pipe sleeve is arranged at the outlet end of the installation chamber corresponding to the transmission path, and the first end of the hose extends outwards through the pipe sleeve.

[0022] In some embodiments, the cutting module includes:

[0023] A cutting table;

[0024] A cutter corresponding to the cutting table;

[0025] A third driving unit connected to the cutter; wherein, the cutter reciprocates along the direction close to or away from the cutting table under the drive of the third driving unit.

[0026] In some embodiments, it further includes: a waste pipe collection module, which is correspondingly arranged below the cutting module.

[0027] In some embodiments, the transmission guiding unit includes: a rotating wheel, the end face of which is in contact with the hose to drive the hose to move along the set direction.

[0028] Beneficial technical effects:

[0029] Different from traditional pump suction sampling, the present application directly adopts a pure mechanical structure extrusion solution, which can not only simplify the structural design but also improve the quantitative accuracy. Moreover, the present application can even be adapted to quantitative aspiration below the microliter level, and the final liquid accuracy is less than 5%, far higher than the accuracy control of traditional pump suction.

[0030] Furthermore, the present application also adopts a multi-stage adjustment solution realized based on mechanical extrusion, which can utilize the constancy advantage of mechanical extrusion operation (that is, the working length of the extrusion part strictly limits the corresponding liquid absorption content) to ensure that during the same-stage adjustment state (when the working length of the extrusion part remains unchanged), the sampling content in each sampling process during the high-throughput batch sample sampling is highly consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts do not necessarily draw according to the actual scale. Obviously, the following-described drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0032] Figure 1 It is the first structural schematic diagram of the hose sampling system in an example of the present utility model;

[0033] Figure 2 It is the second structural schematic diagram of the hose sampling system in an example of the present utility model;

[0034] Figure 3 It is the first side view of the hose sampling system in an example of the present utility model;

[0035] Figure 4 It is the second side view of the hose sampling system in an example of the present utility model;

[0036] Figure 5 It is the first structural schematic diagram of the extrusion module in an example embodiment of the present utility model;

[0037] Figure 6 For Figure 5 The sectional structural schematic diagram of the shown extrusion module;

[0038] Figure 7 For Figure 5 The internal structural schematic diagram of the shown extrusion module;

[0039] Figure 8 It is the second structural schematic diagram of the extrusion module in an example embodiment of the present utility model;

[0040] Figure 9 is Figure 5 a top view structural schematic diagram of the extrusion module shown;

[0041] Figure 10 is Figure 5 a side view schematic diagram of the extrusion module shown;

[0042] Figure 11 is a first structural schematic diagram of the cutting module in an exemplary embodiment of the present utility model;

[0043] Figure 12 is a second structural schematic diagram of the cutting module in an exemplary embodiment of the present utility model.

[0044] Summary of reference numeral identification:

[0045] 10 is a consumable module, 20 is a conveying module, 30 is a hose, 40 is an extrusion module, 41 is an extrusion member, 41a is a first extrusion block, 41b is a second extrusion block, 42 is an adjustment shaft, 42a is a first adjustment shaft, 42b is a second adjustment shaft; 50 is a support plate, 60 is a support rod, 61 is a pipe sleeve, 70 is a rotation module, 80 is a cutting module, 81 is a cutting table, 82 is a cutting tool, 83 is a third driving unit, 90 is a lifting module. Detailed implementation manners

[0046] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection of the present application.

[0047] In this document, suffixes such as "module", "component" or "unit" used to represent elements are only for the convenience of description of the present application, and have no specific meaning in themselves. Therefore, "module", "component" or "unit" can be used interchangeably.

[0048] In this document, the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "outer", "front", "rear", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0049] In this text, unless otherwise clearly specified and defined, terms such as "installation", "equipped with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and can also be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] As used in this text, "and / or" includes any and all combinations of one or more of the listed related items.

[0051] As used in this text, "a plurality of" means two or more, that is, it includes two, three, four, five, etc.

[0052] It should be noted that in this text, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of another identical element in the process, method, article or device comprising that element.

[0053] As used in this specification, the term "about" typically represents + / -5% of the stated value, more typically + / -4% of the stated value, more typically + / -3% of the stated value, more typically + / -2% of the stated value, even more typically + / -1% of the stated value, and even more typically + / -0.5% of the stated value.

[0054] In this specification, certain embodiments may be disclosed in a format within a certain range. It should be understood that this description of "within a certain range" is only for convenience and brevity and should not be construed as a rigid limitation on the disclosed range. Therefore, the description of the range should be considered to have specifically disclosed all possible sub-ranges and the individual numerical values within this range. For example, the description of the range 1-6 should be considered to have specifically disclosed sub-ranges such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., and the individual numbers within this range, such as 1, 2, 3, 4, 5, and 6. The above rules apply regardless of the breadth of the range.

[0055] See Figures 1 - 12As shown in the figure, the present application proposes a hose sampling system for quantitative liquid extraction without a pump suction. The hose sampling system in the present application adopts a multi-stage extrusion block (or extrusion plate) design to simply and quickly adjust the extrusion dose in segments. Moreover, compared with the traditional pump suction design, this multi-stage extrusion plate has a simpler mechanical structure and higher dosing accuracy.

[0056] The hose sampling system provided by the present application has the advantages of a small volume and the ability to quickly achieve high-throughput automated sampling.

[0057] Embodiment 1

[0058] A hose sampling system, comprising:

[0059] See Figure 1 As shown in the figure, a consumable module 10 and a transfer module 20 are sequentially arranged; wherein, the consumable module is used to store a hose 30, the transfer module 20 is provided with a transmission path for accommodating the hose, and a transmission guiding unit is arranged along the transmission path, and the transmission guiding unit is used to drive the transfer module to move in a set direction, wherein, the first end of the hose is used to suck liquid;

[0060] An extrusion module 40 arranged away from the first end of the hose;

[0061] Wherein, the extrusion module 40 includes:

[0062] An accommodation space for the hose to pass through;

[0063] See Figure 7 As shown in the figure, at least one side of the accommodation space is provided with an extrusion member 41, and the extrusion member 41 includes: a first extrusion block 41a and at least one second extrusion block 41b;

[0064] And a first driving unit for controlling the cooperation relationship of the extrusion blocks; wherein, a first channel is arranged in the extrusion block 41, a second channel is arranged in the second extrusion block 41b, and the extrusion member further includes: an adjusting shaft 42 for adjusting the working length of the extrusion member of the extrusion module, and the adjusting shaft can pass through the first channel; wherein, one end of the adjusting shaft is connected to the output end of the first driving unit, and when the adjusting shaft reciprocates in the first direction under the action of the first driving unit, the adjusting shaft will pass through different numbers of the second channels;

[0065] And a second driving unit for controlling the working state of the corresponding extrusion block, and the working state includes: an extrusion state and an opening and closing state;

[0066] Wherein, when the corresponding extrusion block moves to the first target position under the action of the second driving unit, the corresponding extrusion block can exert an extrusion effect on the hose. At this time, a specific volume of air inside the hose is discharged (equivalent to the extrusion state); when the corresponding extrusion block moves to the second target position under the action of the second driving unit, the hose 30 can suck a specific volume of liquid sample from the external environment (equivalent to the opening and closing state).

[0067] In some embodiments, referring to Figure 7 As shown, the adjusting shaft 42 will pass through the first channel and at least one second channel to connect different numbers of adjusting blocks.

[0068] In some embodiments, the first direction refers to the length direction of the extrusion member.

[0069] For example, in some embodiments, the extrusion module 40 includes an extrusion member 41, and a support surface corresponding to the hose is further provided in the accommodation space. When the hose passes through the accommodation space through the transmission path, the hose can be in contact with the support surface. At this time, when the extrusion member 41 approaches the hose under the action of the driving module and extrudes the hose (equivalent to the extrusion module being in the extrusion state), a specific volume of gas in the hose will be discharged.

[0070] Alternatively, in some other embodiments, the extrusion module 40 can be provided with two extrusion members. The two extrusion members are respectively arranged on both sides of the hose along the transmission path. When the two extrusion members approach each other, they can extrude the hose. When the two extrusion members move away from each other, the extrusion effect can be reduced or eliminated.

[0071] Furthermore, in some embodiments, a length monitoring module is further provided at a position corresponding to the hose (or corresponding to the extrusion block) in the accommodation space. The length monitoring module is used to monitor the current working length of the extrusion member.

[0072] For example, in some embodiments, the length monitoring module includes: a view monitoring unit that can acquire an image (such as a photo) of the extrusion member; a data processing unit that can determine the working length according to the image. In this embodiment, the length monitoring module can improve the sampling accuracy and reliability in the high-throughput quantitative sampling scenario.

[0073] In this embodiment, when the extrusion block extrudes the hose 30, a specific volume of gas will be discharged from the hose under the extrusion effect. When the extrusion block is removed, since the hose has sufficient elasticity, it can automatically return to its original state. During the process of the hose recovering from deformation, it will suck in a corresponding volume of liquid sample. Therefore, by controlling the working length of the extrusion block, the quantitative suction of the liquid sample can be accurately controlled.

[0074] In other words, in this embodiment, the automatic recovery ability of the hose is utilized to achieve the replacement of air and liquid.

[0075] In some embodiments, it is preferred to use a material that can fully recover after extrusion deformation as the hose.

[0076] Moreover, different from the traditional pump suction sampling, this application directly uses the automatic recovery ability of the material for liquid suction, which not only avoids the difficulty of accurately controlling the pressure change by pumping air, but also this replacement method avoids the influence of liquid viscosity on the suction accuracy (it should be noted that in the traditional pump suction scheme, with different liquid viscosities, the suction effect will also vary, so it is actually very difficult to control the accuracy of liquid quantitative suction when applied to different types of liquid suction).

[0077] On the contrary, this application directly adopts a pure mechanical structure extrusion scheme, which can not only simplify the structural design but also improve the quantitative accuracy. Even, this application can also be adapted to quantitative suction below the microliter level, and the final liquid accuracy is less than 5%, which is much higher than the accuracy control of the traditional pump suction type.

[0078] It can be understood that in some embodiments, it is sufficient for the hose to have a certain automatic recovery ability.

[0079] Moreover, different from the continuous dose adjustment design in the traditional pump suction type, this application selects a completely opposite multi-stage adjustment idea.

[0080] For example, in some embodiments, at least one set of replaceable spare extrusion parts can also be provided, and the spare extrusion parts can include: at least one second extrusion block; and each group of extrusion parts can have different sizes (such as width).

[0081] In some embodiments, such as Figure 9As shown, the adjustment shaft 42 includes a first adjustment shaft 42a and a second adjustment shaft 42b. Among them, the first adjustment shaft 42a is pre-set inside the first channel, and the second adjustment shaft 42b is connected to the output end of the first driving unit. When the second adjustment shaft reciprocates under the action of the first driving unit, the first adjustment shaft will pass through different numbers of second extrusion blocks. And when the number of second extrusion blocks passed through by the first adjustment shaft is more, the working length of the extrusion part is about longer, and the corresponding liquid suction amount is also larger.

[0082] For example, in some embodiments, the first adjustment shaft 41a may also be provided with a first anti-slip surface, and a second anti-slip surface is also correspondingly provided in the first channel and / or the second channel to avoid; for example, the anti-slip surface may be provided with threads, or other anti-slip materials (such as a rubber layer), or the anti-slip surface may also be provided with other materials with a relatively high friction coefficient.

[0083] For example, in some embodiments, an installation unit (not shown in the figure) is fixedly provided in the extrusion module or the accommodation space, and the installation unit can be used to accommodate at least one second extrusion block; when the first extrusion block moves to a position opposite to the installation unit (specifically, the second extrusion block provided therein) under the drive of the corresponding driving unit (such as the second driving unit), the adjustment shaft extending from the first extrusion block can pass through the second channels of at least one second extrusion block, and drive at least one newly added second extrusion block to move synchronously with the first extrusion block.

[0084] In ultra-high-throughput large-scale pipetting operations, extremely high requirements are put forward for the accuracy and efficiency of batch liquid sampling operations. Especially for batch test detections carried out synchronously, the consistency of the liquid content taken in the same batch of tests is crucial for the reliability and accuracy of the test results.

[0085] The multi-stage adjustment scheme based on mechanical extrusion adopted in this application can utilize the constant advantage of mechanical extrusion operation (that is, the working length of the extrusion part strictly limits the corresponding liquid suction content), and ensure that under the same-stage adjustment state (that is, when the working length of the extrusion part remains unchanged), the liquid sampling content for each high-throughput batch sampling is highly consistent.

[0086] In some embodiments, it includes a view module provided at the first end of the hose corresponding to the hose, and the view module is used to obtain a photo of the liquid level in the hose and determine the volume of the liquid sample according to the photo of the liquid level.

[0087] In some embodiments, it further includes:

[0088] A support plate 50, on which a cutting module 80 is provided;

[0089] A support rod 60, the support rod 60 is arranged through the support plate 50, and the first end of the support rod 60 is used to introduce the hose output from the consumable module. The other end of the support rod is provided with an installation chamber, and the transmission module and the extrusion module are arranged inside the installation chamber;

[0090] And a lifting module 90, the lifting module 90 is connected to the support rod and can drive the support rod to reciprocate along the second direction (such as the axial direction of the support rod), so as to adjust the distance between the hose output through the installation chamber and the cutting module 80 on the support plate.

[0091] For example, in some embodiments, when the support rod is arranged in the vertical direction, correspondingly, the second direction also refers to the vertical direction.

[0092] In some embodiments, it further includes: a waste treatment module, the waste treatment module is used to carry the excess liquid sample discharged from the hose, and the waste treatment module and the cutting module are not in the same position on the horizontal plane; correspondingly, the support rod is further connected with a rotation module 70, and the rotation module can drive the support rod to drive the installation chamber to rotate along the set rotation direction, so that the hose extending out through the installation chamber can correspond to the cutting module and the waste treatment module.

[0093] In some embodiments, the consumable module includes: a rotating shaft, and the hose is wound around the rotating shaft.

[0094] In this application, the hose pipelines can also be connected end to end with a slightly flexible gun head, and its outside is surrounded by a support structure around the rotating shaft (such as forming a disk-shaped wire arrangement), so as to achieve dense packaging and transportation, which is beneficial to efficiently providing pipette tips in high-throughput scenarios and reducing the occupied space of consumables.

[0095] In some embodiments, the cutting module 80 includes:

[0096] A cutting table 81;

[0097] A cutter 82 correspondingly arranged with the cutting table 81;

[0098] A third driving unit 83 connected to the cutter 82; wherein, the cutter 82 reciprocates along the direction of approaching or departing from the cutting table under the drive of the third driving unit 83.

[0099] In some embodiments, a pipe sleeve 61 is arranged at the outlet end of the installation chamber corresponding to the transmission path, and the first end of the hose extends out through the pipe sleeve.

[0100] Embodiment Two

[0101] This embodiment provides a hose sampling system, including:

[0102] A conveying module 20; a transmission path for accommodating the hose is provided in the conveying module 20, and a transmission guiding unit is arranged along the transmission path, and the transmission guiding unit is used to drive the hose 30 to move in a set direction, wherein the first end of the hose is used to suck liquid;

[0103] An extrusion module 40 arranged away from the first end of the hose; wherein, the extrusion module 40 includes:

[0104] A receiving space for the hose 30 to pass through;

[0105] At least one side of the receiving space is provided with an extrusion member 41, and the extrusion member 41 includes: an extrusion block, and a driving unit for driving the extrusion block to switch between an extrusion state and an open / close state. When the extrusion block is in the extrusion state, the end face of the extrusion block contacts the corresponding area on the hose to extrude the hose. At this time, the hose discharges a specific volume of gas under the action of the extrusion block; when the extrusion block switches from the extrusion state to the working state, the extrusion effect of the end face of the extrusion block on the hose gradually decreases, so that the hose gradually sucks the liquid that is the same as or similar to the specific volume.

[0106] In this embodiment, the adoption of the extrusion member 41 can perform batch quantitative suction of liquid.

[0107] It can be understood that the hose sampling system in this embodiment may further include structural components that are the same as or similar to those in any other embodiment, which will not be elaborated here.

[0108] Embodiment Three

[0109] Corresponding to the above hose sampling system, the present application also correspondingly proposes a control method for a hose sampling system, including the steps of:

[0110] S101 Calculate the working length (i.e., the target working length) corresponding to the extrusion member according to a preset target dose, where the working length refers to the length of the extrusion member in contact with the hose in the first direction when the extrusion member extrudes the hose;

[0111] S102 Adjust the extrusion module according to the working length calculated in S101;

[0112] S103 Apply an extrusion effect to the hose through the extrusion module. After canceling the extrusion effect, the hose will suck a corresponding content of liquid sample from the external environment under the action of deformation (i.e., automatic restoration).

[0113] In some embodiments, the method further includes the steps of:

[0114] S104 obtaining at least one liquid level photo at the first end of the hose;

[0115] S105 determining the actual liquid dose in the hose according to the at least one liquid level photo;

[0116] S106 calculating a dose difference between the actual liquid dose and the target dose;

[0117] S107 when the dose difference is greater than a preset first difference threshold, obtaining the current working length of the extrusion member through the length monitoring module;

[0118] For example, in some embodiments, the length monitoring module can collect photos of the extrusion member and calculate the working length of the movable block through photo analysis;

[0119] S108 calculating a length difference between the current working length and the target working length; wherein, when the length difference is greater than a preset second difference threshold, adjusting the current working length of the extrusion module.

[0120] Conversely, when the length difference is less than or equal to the second difference threshold, a prompt signal will be sent to the user to remind the user to repair the hose sampling system to avoid loosening of the extrusion block under long-term work, resulting in insufficient extrusion effect.

[0121] For the quantitative sampling design of the multi-segment extrusion plate, this embodiment provides a process for monitoring and correcting the multi-segment adjustment state. It can be understood that since the multi-segment fixed-dose adjustment mode is adopted in this application (that is, through the combination of different extrusion blocks, multiple fixed-dose sampling states can be provided), the accuracy detection requirements for the extrusion module can be reduced to a certain extent.

[0122] That is to say, due to the multi-segment quantitative sampling design, the detection sensitivity requirements for monitoring the actual working length of the extrusion block are relatively low (in other words, the accuracy requirements for the photo acquisition, length calculation, etc. stages are relatively low), which also makes the monitoring process adopted in this application easier to implement and the monitoring results are more reliable.

[0123] Meanwhile, for the multi-stage quantitative sampling design with relatively high reliability, in this embodiment, the length monitoring and correction program is only activated for specific scenarios (such as when there is a certain difference between the actual liquid dose and the target dose). Thereby, the layout difficulty of the computer monitoring system can be further reduced, and the necessary monitoring amount and data processing amount of the computer monitoring system can be decreased. On the basis of ensuring the operation reliability of the hose sampling system, the accuracy is improved.

[0124] In some embodiments, when the dose difference is greater than a preset first difference threshold, the method further includes the step of: activating a cutting step, where the cutting step includes:

[0125] Calculating the cutting position of the hose according to the actual liquid dose;

[0126] When, driven by the lifting module and the conveying module, the cutting position of the hose moves to the corresponding cutting module, the cutting module cuts the hose along the cutting position.

[0127] It should be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0128] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-described embodiment methods can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation. Based on such an understanding, the technical solution of the present application, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes several instructions for causing a computer terminal (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in the various embodiments of the present application.

[0129] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims. All of these are within the protection scope of the present application.

Claims

1. A hose sample adding system, characterized in that: include: A transmission module (20); a transmission path for accommodating the hose is provided in the transmission module (20), and a transmission guide unit is provided along the transmission path, the transmission guide unit is used to drive the hose (30) to move along a set direction, wherein the first end of the hose is used to absorb liquid; An extrusion module (40) is arranged away from the first end of the hose; wherein the extrusion module (40) comprises: an accommodating space for the hose (30) to pass through; An extrusion member (41) is provided on at least one side of the accommodating space, and the extrusion member (41) comprises: an extrusion block, and a driving unit for driving the extrusion block to switch between an extrusion state and an opening and closing state, wherein when the extrusion block is in the extrusion state, the end face of the extrusion block contacts the corresponding area on the hose to squeeze the hose, and at this time, the hose discharges a specific volume of gas under the action of the extrusion block; when the extrusion block switches from the extrusion state to the opening and closing state, the extrusion effect of the end face of the extrusion block on the hose gradually decreases, so that the hose gradually absorbs the liquid that is the same as or close to the specific volume.

2. The hose sample loading system according to claim 1, characterized in that: The extrusion block comprises: a first extrusion block, and at least one second extrusion block; correspondingly, the extrusion module further comprises: a first driving unit for controlling the matching relationship between the first extrusion block and the second extrusion block; correspondingly, a first channel is provided in the first extrusion block, and a second channel is provided in the second extrusion block, and the extrusion member further comprises: an adjusting shaft (42) for adjusting the working length of the extrusion module, and the adjusting shaft can pass through the first channel; wherein one end of the adjusting shaft is connected to the output end of the first driving unit, and when the adjusting shaft reciprocates along the first direction under the action of the first driving unit, the adjusting shaft will pass through different numbers of the second channels; And a second driving unit for controlling the squeezing state or the opening and closing state of the squeezing block. When the squeezing block moves to the first target position under the action of the second driving unit, the squeezing block can produce a squeezing effect on the hose; when the squeezing block moves to the second target position under the action of the second driving unit, the squeezing block is in an opening and closing state, and at this time, the hose gradually absorbs the liquid that is the same or similar to the specific volume.

3. The hose sample loading system according to claim 2, characterized in that: The adjusting shaft comprises: a first adjusting shaft and a second adjusting shaft, wherein the first adjusting shaft is pre-arranged inside the first channel, and the second adjusting shaft is connected to the output end of the first driving unit.

4. The hose sample loading system according to claim 1, characterized in that: include: Corresponding to the viewing module arranged at the first end of the hose, the viewing module is used to obtain a liquid surface photo in the hose and determine the volume of the liquid sample according to the liquid surface photo.

5. The hose sample loading system according to claim 1, characterized in that: Also includes: A support plate (50), wherein a cutting module (80) is arranged on the support plate (50); A support rod (60), the support rod (60) passing through the support plate (50), and a first end of the support rod (60) is used to introduce the hose, and the other end of the support rod is connected to a mounting chamber, and the transmission module and the extrusion module are arranged inside the mounting chamber; and a lifting module, the lifting module being connected to the support rod and being capable of driving the support rod to move back and forth along a second direction, thereby adjusting the distance between the hose output through the installation chamber and the cutting module (80) on the support plate.

6. The hose sample loading system according to claim 5, characterized in that: Also includes: A waste treatment module, the waste treatment module is used to carry excess liquid samples discharged from the hose, and the positions of the waste treatment module and the cutting module on the horizontal plane are different; correspondingly, the support rod is also connected to a rotation module (70), and the rotation module can drive the support rod to drive the installation chamber to rotate along a set rotation direction, so that the hose extending through the installation chamber can correspond to the cutting module and the waste treatment module.

7. The hose sample loading system according to claim 6, characterized in that: A pipe sleeve (61) is provided at the outlet end of the installation chamber corresponding to the transmission path, and the first end of the hose extends outward through the pipe sleeve.

8. The hose sample loading system according to claim 5, characterized in that: The cutting module (80) comprises: Cutting table(81); a cutting knife (82) arranged corresponding to the cutting table (81); A third driving unit (83) connected to the cutter (82); wherein the cutter (82) reciprocates in a direction approaching or moving away from the cutting table under the drive of the third driving unit (83).

9. The hose sample loading system according to claim 8, characterized in that: Also includes: A waste pipe collection module is correspondingly arranged below the cutting module.

10. The hose sample loading system according to claim 1, characterized in that: The transmission guide unit includes a rotating wheel, an end surface of which is in contact with the hose, so as to drive the hose to move along the set direction.

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