CN216350762U - Liquid feeding device and sample analyzer - Google Patents

Abstract

The application provides a liquid feeding device and sample analyzer, the liquid feeding device includes: a power element; the liquid inlet assembly comprises a liquid inlet pipe, a liquid storage pipe and a first power pipe, the liquid inlet pipe is connected with a first end of the liquid storage pipe, the first power pipe is respectively connected with a second end of the liquid storage pipe and a power element, and the power element is used for pumping liquid to be added to the liquid storage pipe through the liquid inlet pipe; flowing back subassembly, including fluid-discharge tube and second power tube, the fluid-discharge tube is held with the second of fluid-discharge tube and is connected, the second power tube is connected with the first end of power component and fluid-discharge tube respectively, power component still is arranged in waiting to add liquid through the second power tube in with the fluid-discharge tube discharge, thereby make the liquid feeding device in this embodiment treat that the liquid is from extracting to the whole liquid feeding in-process of exhaust, treat that the liquid can not get into power component, avoided treating to add the liquid and caused the corruption to power component on the one hand, the wearing and tearing scheduling problem, on the other hand the cost is reduced.

Description

Liquid feeding device and sample analyzer

Technical Field

The application relates to the technical field of medical instruments, in particular to a liquid adding device and a sample analyzer.

Background

In the process of detecting a sample, the sample is usually required to be detected after reacting with a reagent, and therefore, the reagent is required to be added into a reaction cell containing the sample.

In the prior art, a reagent is generally pumped by a power element such as a syringe and a plunger pump and then added into a reaction tank, in such a manner, the reagent needs to be pumped into an inner cavity of the power element such as the syringe and the plunger pump, and then discharged from the inner cavity of the power element such as the syringe and the plunger pump, so that the problems of corrosion, abrasion and the like of the power element such as the syringe and the plunger pump caused by the reagent are caused.

SUMMERY OF THE UTILITY MODEL

The application mainly provides a liquid feeding device and sample analyzer, can avoid treating that the liquid that adds causes corruption, wearing and tearing scheduling problem to power component.

In order to solve the technical problem, the application adopts a technical scheme that: there is provided a liquid adding device including: a power element; the liquid inlet assembly comprises a liquid inlet pipe, a liquid storage pipe and a first power pipe, the liquid inlet pipe is connected with a first end of the liquid storage pipe, the first power pipe is respectively connected with a second end of the liquid storage pipe and the power element, and the power element is used for pumping liquid to be added to the liquid storage pipe through the liquid inlet pipe through the first power pipe; and the liquid drainage assembly comprises a liquid drainage pipe and a second power pipe, the liquid drainage pipe is connected with the second end of the liquid storage pipe, the second power pipe is respectively connected with the power element and the first end of the liquid storage pipe, and the power element is also used for discharging the liquid to be added in the liquid storage pipe from the liquid drainage pipe through the second power pipe.

In a specific embodiment, the liquid adding device further comprises a switching element, the power element is connected with a common end of the switching element, the first power tube is respectively connected with the second end of the liquid storage tube and the first branch end of the switching element, and the second power tube is respectively connected with the first end of the liquid storage tube and the second branch end of the switching element.

In a specific embodiment, the liquid inlet assembly further comprises a liquid inlet control element, and the liquid discharge assembly further comprises a liquid discharge control element, wherein the liquid inlet control element is connected with the liquid inlet pipe to open or close the liquid inlet pipe, and the liquid discharge control element is connected with the liquid discharge pipe to open or close the liquid discharge pipe.

In a specific embodiment, the liquid storage pipe is a quantitative pipe, and the quantitative pipe satisfies the following conditions: v1-n × V2, where V1 is the preset discharge volume of the liquid to be added, V2 is the volume of the dosing tube, and n is a positive integer.

In a specific embodiment, power component includes feed liquor power component and flowing back power component, first power pipe respectively with the second end of stock solution pipe reaches feed liquor power component connects, feed liquor power component is used for through feed liquor pipe will wait to add the liquid extraction extremely the stock solution pipe, second power pipe respectively with flowing back power component and the first end of stock solution pipe is connected, flowing back power component is used for through second power pipe will wait to add the liquid in the stock solution pipe and follow the fluid-discharge tube is discharged.

In a specific embodiment, first power pipe includes first branch pipe and second branch pipe, first branch pipe with the second end of stock solution pipe is connected, feed liquor power component connects respectively first branch pipe reaches the second branch pipe, feed liquor power component is used for looping through first branch pipe reaches the discharge waste liquid of second branch pipe.

In a specific embodiment, the second power pipe includes a third branch pipe and a fourth branch pipe, the third branch pipe is connected to the first end of the liquid storage pipe, the liquid discharge power element is connected to the third branch pipe and the fourth branch pipe, and the liquid discharge power element is configured to draw a pushing medium through the fourth branch pipe and sequentially inject the pushing medium into the third branch pipe and the liquid storage pipe, so that the pushing medium pushes the liquid to be added in the liquid storage pipe out of the liquid storage pipe.

In one embodiment, the liquid inlet assembly and the liquid outlet assembly are respectively provided in a plurality, each of the first power pipes is connected to a first end of one of the liquid storage pipes, each of the second power pipes is connected to a second end of one of the liquid storage pipes, and the power element is respectively connected to the first power pipes and the second power pipes.

In a specific embodiment, the liquid adding device further comprises a plurality of power control elements, and the plurality of power control elements are respectively connected with the plurality of second power pipes so as to respectively open or close the plurality of second power pipes.

In order to solve the above technical problem, the present application adopts another technical solution: the sample analyzer comprises a detection device and the liquid adding device, wherein the liquid adding device is used for adding a reagent into a reaction container, the reaction container is used for containing a sample, and the detection device is used for detecting the sample.

The beneficial effect of this application is: different from the situation of the prior art, the liquid adding device provided by the embodiment of the application comprises: a power element; the liquid inlet assembly comprises a liquid inlet pipe, a liquid storage pipe and a first power pipe, the liquid inlet pipe is connected with a first end of the liquid storage pipe, the first power pipe is respectively connected with a second end of the liquid storage pipe and a power element, and the power element is used for pumping liquid to be added to the liquid storage pipe through the liquid inlet pipe; the liquid discharge assembly comprises a liquid discharge pipe and a second power pipe, wherein the liquid discharge pipe is connected with the second end of the liquid storage pipe, the second power pipe is respectively connected with the power element and the first end of the liquid storage pipe, and the power element is also used for discharging the liquid to be added in the liquid storage pipe from the liquid discharge pipe through the second power pipe, so that the liquid to be added does not enter the power element in the whole liquid adding process from the extraction of the liquid to be added to the discharge of the liquid, on one hand, the problems of corrosion, abrasion and the like of the power element caused by the liquid to be added are avoided, on the other hand, when the problems of corrosion, abrasion and the like occur, the problems of corrosion, abrasion and the like of the liquid inlet pipe, the liquid storage pipe, the first power pipe, the liquid discharge pipe and the second power pipe are only required to be replaced, and compared with the problems of corrosion, abrasion and the like of the power element, the power element is required to be replaced, the cost is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of a liquid adding device provided by the present application;

FIG. 2 is a schematic structural view of another embodiment of the liquid adding device provided by the present application;

FIG. 3 is a schematic structural view of another embodiment of the liquid discharge motive element of FIG. 2;

FIG. 4 is a schematic structural view of another embodiment of the liquid adding device provided by the present application;

FIG. 5 is a schematic structural diagram of another embodiment of the power element of FIG. 4;

fig. 6 is a schematic block diagram of an embodiment of a sample analyzer provided herein.

Detailed Description

The present application will be described in further detail with reference to the accompanying drawings and embodiments. In particular, the following embodiments are merely illustrative of the present application, and do not limit the scope of the present application. Likewise, the following embodiments are only some embodiments of the present application, not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present application.

The terms "first", "second" and "third" in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any indication of the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of this application, "plurality" means at least two, in a manner such as two, three, etc., unless specifically limited otherwise. All directional indications (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are only used to explain the relative positional relationship between the components, the movement, and the like in a certain posture (as shown in the drawings), and if the certain posture is changed, the directional indication is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. A process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to the listed steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a liquid adding device 10 provided in the present application, where the liquid adding device 10 in the present embodiment includes a power element 11, a liquid inlet component 12, and a liquid discharging component 13.

The liquid inlet assembly 12 includes a liquid inlet pipe 121, a liquid storage pipe 122 and a first power pipe 123.

Wherein, the liquid inlet pipe 121 is connected with the first end of the liquid storage pipe 122, the first power pipe 123 is respectively connected with the second end of the liquid storage pipe 122 and the power element 12, and the power element 12 is used for pumping the liquid to be added to the liquid storage pipe 122 through the liquid inlet pipe 121 via the first power pipe 123.

Specifically, the liquid to be added is generally stored in a liquid container, for example, the liquid to be added is a reagent, and the reagent is stored in a container such as a reagent bottle, a reagent barrel, etc., in practical application, the end P1 of the liquid inlet pipe 121 is directly inserted into the liquid container, and then the power element 12 is activated, and the liquid to be added is extracted from the liquid inlet pipe 121 to the liquid storage pipe 122.

The liquid discharge assembly 13 includes a liquid discharge pipe 131 and a second power pipe 132, the liquid discharge pipe 131 is connected to the second end of the liquid storage pipe 122, the second power pipe 132 is connected to the power element 11 and the first end of the liquid storage pipe 122, respectively, the power element 11 is further configured to discharge the liquid to be added in the liquid storage pipe 122 from the liquid discharge pipe 131 through the second power pipe 132, so that the liquid adding device 10 in the present embodiment does not enter the power element 11 during all liquid adding processes from the liquid to be added drawing to the liquid, on one hand, the problems of corrosion and abrasion of the liquid to be added to the power element 11 are avoided, on the other hand, when the problems of corrosion and abrasion occur, the problems of corrosion and abrasion of the liquid inlet pipe 121, the liquid storage pipe 122, the first power pipe 123, the liquid discharge pipe 131 and the second power pipe 132 are only caused, and therefore, the pipelines only need to be replaced, compared with the problems of corrosion, corrosion of the power element 11, the liquid inlet pipe 131, the liquid storage pipe 131, the liquid to be replaced, The power element 11 needs to be replaced due to the problems of abrasion and the like, and the cost is reduced.

In practical applications, the first end of the liquid storage tube 122, the first power tube 123 and the liquid discharge tube 131 may be connected by the pipe connector 14, and the liquid inlet tube 121, the second end of the liquid storage tube 122 and the second power tube 132 may be connected by the pipe connector 14.

In the present embodiment, the power element 11 may be a power element having an inner cavity such as a syringe or a plunger pump, and since air exists in the inner cavity of the power element, when the power element 11 discharges the liquid to be added in the liquid storage tube 122 from the liquid discharge tube 131 through the second power tube 132, the power element 11 injects the air in the inner cavity thereof into the second power tube 132 and the liquid storage tube 122 in sequence, so that the liquid to be added in the liquid storage tube 122 is pushed out to the liquid discharge tube 131 by the air until being discharged from the P2 end of the liquid discharge tube 131.

Optionally, in order to improve the applicability of the liquid inlet pipe 121, the liquid storage pipe 122, the first power pipe 123, the liquid discharge pipe 131, and the second power pipe 132, the liquid inlet pipe 121, the liquid storage pipe 122, the first power pipe 123, the liquid discharge pipe 131, and the second power pipe 132 may be all made of fluoroplastic pipes, such as PTFE (polytetrafluoroethylene), FEP (fluorinated ethylene propylene copolymer), and the like.

Further, the liquid inlet assembly 11 in this embodiment further includes a liquid inlet control element 124, and the liquid outlet assembly 13 further includes a liquid outlet control element 133, wherein the liquid inlet control element 124 is connected to the liquid inlet pipe 121 to open or close the liquid inlet pipe 121, and the liquid outlet control element 133 is connected to the liquid outlet pipe 131 to open or close the liquid outlet pipe 131.

Specifically, when starting power component 11, and when treating the additive liquid through feed liquor pipe 121 extraction, feed liquor control component 124 opens feed liquor pipe 121, make feed liquor pipe 121 be in the conducting state, simultaneously, flowing back control component 133 closes drain pipe 131, make drain pipe 131 be in non-conducting state, when power component 11 discharges the additive liquid in stock solution pipe 122 from drain pipe 131, feed liquor control component 124 closes feed liquor pipe 121, make feed liquor pipe 121 be in non-conducting state, simultaneously, flowing back control component 133 opens drain pipe 131, make drain pipe 131 be in the conducting state.

Alternatively, the liquid inlet control element 124 and the liquid discharge control element 133 may be control elements such as an on-off valve and a multi-way valve, which are not limited herein.

Further, the liquid adding device 10 of the present embodiment further includes a switching element 15, the power element 11 is connected to a common end of the switching element 15, the first power tube 123 is connected to the second end of the reservoir 122 and the first branch end of the switching element 15, respectively, the second power tube 132 is connected to the first end of the reservoir 122 and the second branch end of the switching element 15,

specifically, in practical application, when the switching element 15 is first switched to connect the power element 11 with the first power pipe 123, the power element 11 pumps the liquid to be added to the liquid storage pipe 122 through the liquid inlet pipe 121, then the switching element 15 is switched to connect the power element 11 with the second power pipe 132, and the second power pipe 132 of the power element 11 discharges the liquid to be added in the liquid storage pipe 122 from the liquid discharge pipe 131.

It can be understood that, in practical applications, the power element 11 and the common end of the switching element 15 may be connected by a connecting pipe 16, where the connection between the power element 11 and the first power pipe 123 is the connecting pipe 16 and the first power pipe 123, and the connection between the power element 11 and the second power pipe 132 is the connecting pipe 16 and the second power pipe 132.

Alternatively, the switching member 15 may be an electromagnetic valve such as a two-way valve, a three-way valve, or the like, and is not limited thereto.

Further, the liquid adding device 10 in the present embodiment further includes a cleaning pipe 17, and the cleaning pipe 17 is connected to the power element 11, so that the power element 11 draws the cleaning liquid through the cleaning pipe 17, and injects the cleaning liquid into at least one of the liquid inlet pipe 121, the liquid storage pipe 122, the first power pipe 123, the liquid discharge pipe 131, and the second power pipe 132, so that the cleaning liquid cleans at least one of the liquid inlet pipe 121, the liquid storage pipe 122, the first power pipe 123, the liquid discharge pipe 131, and the second power pipe 132.

Further, in a specific application scenario, the liquid storage tube 122 is a quantitative tube, and the quantitative tube satisfies the following conditions:

v1-n × V2, where V1 is the preset discharge volume of the liquid to be added, V2 is the volume of the dosing tube, and n is a positive integer.

Specifically, when the liquid adding device 10 in the present embodiment is applied to quantitative liquid adding, for example, when the liquid to be added is a reagent, the reagent is used to react with the sample for subsequent detection of the sample, if the reagent is added too little, the reaction of the sample is incomplete, and the subsequent detection result is inaccurate, and if the reagent is added too much, the reagent is wasted, and the cost is increased, so that the amount of the reagent to be added needs to satisfy the predetermined liquid adding amount, in this case, the liquid storage tube 122 is designed as described above, and V1 n V2 is satisfied, when the liquid adding operation is performed, that is, "the power element 11 pumps the liquid to be added to the liquid storage tube 122 through the liquid inlet tube 121, so that the liquid to be added fills the entire liquid storage tube 122, and then discharges the liquid to be added to the entire liquid storage tube 122 from the liquid discharge tube 131", the liquid adding amount of the liquid to be added at one time is V2, and then, according to a specific value of n, the selection is carried out one or more times the liquid feeding operation, can be so that the liquid feeding volume that waits to add the liquid satisfies preset liquid feeding volume to realize the quantitative liquid feeding of liquid feeding device 10 in this embodiment, for example when n is 1, V1 is V2, then only need carry out one time the liquid feeding operation can, when n is 2, V1 is 2V 2, then need carry out two times liquid feeding operation, so on.

It can be understood that, in the process that the power element 11 pumps the liquid to be added to the liquid storage pipe 122 through the liquid inlet pipe 121, in order to make the liquid to be added be able to fill the whole liquid storage pipe 122, in practical application, the pumping can be stopped after the liquid to be added enters the first power pipe 123, so that the liquid inlet pipe 121 and the liquid storage pipe 122 are full of the liquid to be added, thereby ensuring that the whole liquid storage pipe 122 is full of the liquid to be added, and in order to prevent the waste of the liquid to be added caused by the excessive amount of the liquid to be added entering the first power pipe 123, a detector can be set according to practical situations for detecting the position of the liquid to be added, for example, a liquid level sensor is set at the connection between the first power pipe 123 and the liquid storage pipe 122, and when the liquid to be added is detected to enter the first power pipe 123, the power element 11 immediately stops pumping, thereby avoiding the waste of the liquid to be added.

In the specific application scenario, in order to make the liquid adding amount of the liquid to be added satisfy the preset liquid adding amount, in practical application, the liquid adding amount of the liquid to be added needs to have higher quantitative accuracy, if the liquid to be added is pumped into the inner cavity of the power element such as the syringe, the plunger pump, etc., and then is discharged from the inner cavity of the power element such as the syringe, the plunger pump, etc., the volume of the inner cavity of the power element such as the syringe, the plunger pump, etc., needs to be made equal to the preset discharge volume of the liquid to be added, therefore, in order to satisfy the high requirement of the quantitative accuracy, the volume of the inner cavity of the power element such as the syringe, the plunger pump, etc., needs to have higher accuracy, and the cost of the liquid storage tube 122 is far lower than that of the power element such as the syringe, the plunger pump, etc., therefore, the liquid adding device 10 in this embodiment only needs to satisfy the quantitative accuracy of the liquid storage tube 122, the high-precision power element 11 is not needed, and the cost of the whole device is reduced.

Further, in this specific application scenario, the situation that the amount of liquid to be added needs to satisfy different preset amounts of liquid can also appear, for example, when waiting to add the liquid as a reagent, to different samples, the amount of reagent that needs to be added can also be different, if adopt will wait to add the liquid and draw to the syringe, in the inner chamber of power components such as plunger pump, then carry out the liquid feeding from the mode of discharging in the inner chamber of power components such as syringe, plunger pump, so need choose for use the syringe that has different inner chamber volumes, power components such as plunger pump satisfy different preset amounts of liquid, and in this embodiment, only need choose for use different volumetric liquid storage tubes 122 can satisfy different preset amounts of liquid, and is very obvious, choose for use the mode of different volumetric liquid storage tubes 122 in this embodiment, the cost is greatly reduced.

Referring to fig. 2, fig. 2 is a schematic structural diagram of another embodiment of a liquid adding device 20 provided in the present application, where the liquid adding device 20 in the present embodiment includes a power element 21, a liquid inlet assembly 12 and a liquid discharge assembly 13, and it can be understood that the liquid inlet assembly 12 and the liquid discharge assembly 13 in fig. 2 in the present embodiment are the same as the liquid inlet assembly 12 and the liquid discharge assembly 13 in fig. 1 in the above embodiment, and are not described again.

Wherein, power component 21 includes liquid inlet power component 211 and flowing back power component 212, first power pipe 123 is connected with the second end of stock solution pipe 122 and liquid inlet power component 211 respectively, and liquid inlet power component 211 is used for drawing the liquid that waits to add to stock solution pipe 122 through feed liquor pipe 121, and second power pipe 132 is connected with the first end of flowing back power component 212 and stock solution pipe 122 respectively, and flowing back power component 212 is arranged in discharging the liquid that waits to add in the stock solution pipe 122 from drain pipe 131 through second power pipe 132.

Specifically, in practical application, the liquid inlet pipe 121 is opened by the liquid inlet control element 124, so that the liquid inlet pipe 121 is in a conducting state, meanwhile, the liquid discharge control element 133 closes the liquid discharge pipe 131, so that the liquid discharge pipe 131 is in a non-conducting state, the liquid inlet power element 211 is started, the liquid to be added sequentially enters the liquid inlet pipe 121 and the liquid discharge pipe 122 from the P1 end of the liquid inlet pipe 121, then the liquid inlet control element 124 closes the liquid inlet pipe 121, so that the liquid inlet pipe 121 is in a non-conducting state, meanwhile, the liquid discharge control element 133 opens the liquid discharge pipe 131, so that the liquid discharge pipe 131 is in a conducting state, and finally, the liquid to be added in the liquid discharge pipe 122 is discharged from the liquid discharge pipe 131 by the liquid discharge power element 212.

In the present embodiment, the liquid discharge power element 212 may be a power element such as a syringe or a plunger pump, and since air is present in the cavity of these power elements, when the liquid discharge power element 212 discharges the liquid to be added in the reservoir 122 from the liquid discharge pipe 131 through the second power pipe 132, the liquid discharge power element 212 injects the air in the cavity thereof into the second power pipe 132 and the reservoir 122 in order, so that the liquid to be added in the reservoir 122 is pushed out to the liquid discharge pipe 131 by the air until being discharged from the P2 end of the liquid discharge pipe 131.

It will be appreciated that when the fluid discharge motor 212 is a syringe, plunger pump, or other motor having an internal cavity, other media, such as air or water, may be pumped into the second power line 132 and the reservoir 122, respectively, until the fluid to be added in the reservoir 122 is discharged from the P2 end of the fluid discharge line 131.

Alternatively, the liquid inlet power element 211 can be a power element such as a syringe, a plunger pump, a peristaltic pump, etc., which is not limited thereto.

In a concrete application scenario, feed liquor power component 211 chooses for use the peristaltic pump, because the peristaltic pump is non-constant rate pump, its self can not realize quantitative liquid feeding, consequently, in this concrete application scenario, even choose for use this kind of non-constant rate pump of peristaltic pump, liquid feeding device in this embodiment also can realize quantitative liquid feeding through stock solution pipe 122.

Optionally, the liquid inlet power element 211 in this embodiment is also used for discharging the waste liquid through the first power pipe 123, as described in the above embodiment, in order to make the liquid to be added fill the whole liquid storage pipe 122, in practical application, the liquid to be added may stop being extracted after entering the first power pipe 123, so that the liquid to be added remains in the first power pipe 123, and the liquid inlet power element 211 in this embodiment is used for discharging the remaining liquid to be added through the first power pipe 123.

Specifically, as shown in fig. 2, the first power pipe 123 includes a first branch pipe 1231 and a second branch pipe 1232, the first branch pipe 1231 is connected to the second end of the liquid storage pipe 122, the liquid inlet power element 211 is respectively connected to the first branch pipe 1231 and the second branch pipe 1232, and the liquid inlet power element 211 is configured to sequentially discharge the waste liquid through the first branch pipe 1231 and the second branch pipe 1232.

Referring to fig. 3, fig. 3 is a schematic structural diagram of another embodiment of the liquid discharge power element 212 in fig. 2, wherein in the another embodiment, the liquid discharge power element 212 is further configured to draw the pushing medium through the second power pipe 132 and push the liquid to be added in the liquid storage pipe 122 out of the liquid discharge pipe 131 through the pushing medium.

Specifically, in this embodiment, the liquid discharge power element 212 may be a power element without an inner cavity, such as a peristaltic pump, which has no inner cavity, and therefore needs to draw a propelling medium, such as air or water, and then inject the propelling medium into the liquid storage pipe 122 through the second power pipe 132 until the liquid to be added in the liquid storage pipe 122 is discharged from the P2 end of the liquid discharge pipe 131.

As shown in fig. 3, the second power pipe 132 includes a third branch pipe 1321 and a fourth branch pipe 1322, the third branch pipe 1321 is connected to the first end of the liquid storage pipe 122, the liquid discharge power element 212 is respectively connected to the third branch pipe 1321 and the fourth branch pipe 1322, and the liquid discharge power element 212 is configured to draw the pushing medium through the fourth branch pipe 1322 and sequentially inject the pushing medium into the third branch pipe 1321 and the liquid storage pipe 122, so that the pushing medium pushes the liquid to be added in the liquid storage pipe 122 out of the liquid discharge pipe 131.

When the pushing medium is water, the liquid discharge power element 212 can push the liquid to be added in the liquid storage pipe 122 out of the liquid discharge pipe 131 by the pushing medium, and can clean the liquid storage pipe 122 and the liquid discharge pipe 131 by the pushing medium.

Referring to fig. 4 and 5 together, fig. 4 is a schematic structural diagram of another embodiment of the liquid adding device 30 provided in the present application, fig. 5 is a schematic structural diagram of another embodiment of the power element 31 in fig. 4, the liquid adding device 30 in the present embodiment includes the power element 31, a plurality of liquid inlet assemblies 12 and a plurality of liquid discharge assemblies 13, that is, in the present embodiment, the number of the liquid inlet pipes 121, the liquid storage pipes 122, the first power pipes 123, the liquid discharge pipes 131 and the second power pipes 132 is plural, and in fig. 4 of the present embodiment, the number of the liquid inlet assemblies 12 and the number of the liquid discharge assemblies 13 are four respectively as an example.

The power element 31 may be the power element 11 in the above-described one embodiment as shown in fig. 4, or may be the power element 21 in the above-described another embodiment as shown in fig. 5, and the principles of both in the present embodiment are the same.

Wherein each of the plurality of first power tubes 123 is connected to a first end of one of the fluid reservoirs 122, each of the plurality of second power tubes 132 is connected to a second end of one of the fluid reservoirs 122, the power element 31 is connected to each of the plurality of first power tubes 123 and the plurality of second power tubes 132, in the present embodiment, when the power element 31 is the power element 21 in the above-described another embodiment as shown in fig. 5, the liquid inlet power element 211 is respectively connected with a plurality of first power pipes 123, the liquid outlet power element 212 is respectively connected with a plurality of second power pipes 132, so that the power element 31 respectively pumps the liquid to be added to the plurality of liquid storage pipes 122 through the plurality of liquid inlet pipes 121, and the liquid to be added in the plurality of liquid storage pipes 122 is discharged from the plurality of liquid discharge pipes 131 through the plurality of second power pipes 132 respectively, so that the liquid adding device 10 in the present embodiment can add the liquid to be added multiple times.

The liquid to be added extracted by the liquid inlet assemblies 12 and the liquid to be added discharged by the liquid discharge assemblies 13 can be the same liquid to be added or different liquids to be added.

Further, the liquid adding device 30 in the present embodiment further includes a plurality of power control elements 32, the plurality of power control elements 32 are respectively connected to the plurality of second power pipes 132 to open or close the plurality of second power pipes 132, for example, the liquid to be added is extracted by the plurality of liquid inlet assemblies 12, the liquid to be added discharged by the liquid discharge assembly 13 is a different type of liquid to be added, when the power element 31 extracts the liquid to be added by one of the liquid inlet assemblies 12 and the liquid to be added is discharged by the plurality of liquid discharge assemblies 13, the power control element 32 is communicated with the second power pipe 132 of the liquid discharge assembly 13 to open the second power pipe 132, so that the second power pipe 132 is in a conducting state, and simultaneously, all other power control elements 32 close all other second power pipes 132, so that all other second power pipes 132 are in a non-conducting state, and so on, the liquid to be added is prevented from being extracted by the plurality of liquid inlet assemblies 12, When the plurality of liquid discharge assemblies 13 discharge different types of liquids to be added, cross contamination occurs in the different types of liquids to be added.

Alternatively, the power control element 32 may be a control element such as a cut-off valve, a multi-way valve, etc., and is not limited thereto.

Referring to fig. 6, fig. 6 is a schematic block diagram of an embodiment of a sample analyzer 40 provided in the present application, where the sample analyzer 40 in the present embodiment includes a detection device 41 and a liquid adding device in any one of the above embodiments.

The liquid adding device is used for adding a reagent into the reaction container, that is, in the present embodiment, the liquid to be added is the reagent, the reaction container is used for containing a sample, and the detecting device 41 is used for detecting the sample, that is, detecting the sample after the reaction with the reagent.

Alternatively, the sample analyzer 40 in the present embodiment may be a sample analyzer for andrology, gynecology, blood, and the like, which is not limited thereto.

The beneficial effect of this application is: different from the situation of the prior art, the liquid adding device provided by the embodiment of the application comprises: a power element; the liquid inlet assembly comprises a liquid inlet pipe, a liquid storage pipe and a first power pipe, the liquid inlet pipe is connected with a first end of the liquid storage pipe, the first power pipe is respectively connected with a second end of the liquid storage pipe and a power element, and the power element is used for pumping liquid to be added to the liquid storage pipe through the liquid inlet pipe; the liquid discharge assembly comprises a liquid discharge pipe and a second power pipe, wherein the liquid discharge pipe is connected with the second end of the liquid storage pipe, the second power pipe is respectively connected with the power element and the first end of the liquid storage pipe, and the power element is also used for discharging the liquid to be added in the liquid storage pipe from the liquid discharge pipe through the second power pipe, so that the liquid to be added does not enter the power element in the whole liquid adding process from the extraction of the liquid to be added to the discharge of the liquid, on one hand, the problems of corrosion, abrasion and the like of the power element caused by the liquid to be added are avoided, on the other hand, when the problems of corrosion, abrasion and the like occur, the problems of corrosion, abrasion and the like of the liquid inlet pipe, the liquid storage pipe, the first power pipe, the liquid discharge pipe and the second power pipe are only required to be replaced, and compared with the problems of corrosion, abrasion and the like of the power element, the power element is required to be replaced, the cost is reduced.

The above description is only a part of the embodiments of the present application, and not intended to limit the scope of the present application, and all equivalent devices or equivalent processes performed by the content of the present application and the attached drawings, or directly or indirectly applied to other related technical fields, are all included in the scope of the present application.

Claims (10)

1. A liquid feeding device, characterized in that it comprises:

a power element;

the liquid inlet assembly comprises a liquid inlet pipe, a liquid storage pipe and a first power pipe, the liquid inlet pipe is connected with a first end of the liquid storage pipe, the first power pipe is respectively connected with a second end of the liquid storage pipe and the power element, and the power element is used for pumping liquid to be added to the liquid storage pipe through the liquid inlet pipe through the first power pipe;

and the liquid drainage assembly comprises a liquid drainage pipe and a second power pipe, the liquid drainage pipe is connected with the second end of the liquid storage pipe, the second power pipe is respectively connected with the power element and the first end of the liquid storage pipe, and the power element is also used for discharging the liquid to be added in the liquid storage pipe from the liquid drainage pipe through the second power pipe.

2. The charging device according to claim 1, characterized in that it further comprises a switching element, said powered element being connected to a common end of said switching element, said first powered tube being connected to the second end of said reservoir tube and to a first branch end of said switching element, respectively, and said second powered tube being connected to the first end of said reservoir tube and to a second branch end of said switching element, respectively.

3. The charging device according to claim 1, characterized in that said charging assembly further comprises a charging control element, said discharging assembly further comprises a discharging control element, said charging control element is connected with said charging pipe to open or close the charging pipe, said discharging control element is connected with said discharging pipe to open or close said discharging pipe.

4. The liquid adding device according to claim 3, characterized in that said liquid storage tube is a dosing tube, said dosing tube satisfying:

v1-n × V2, where V1 is the preset discharge volume of the liquid to be added, V2 is the volume of the dosing tube, and n is a positive integer.

5. The liquid adding device according to claim 1, wherein said power element comprises a liquid inlet power element and a liquid outlet power element, said first power tube is connected to said second end of said liquid storage tube and said liquid inlet power element, said liquid inlet power element is used for pumping the liquid to be added to said liquid storage tube through said liquid inlet tube, said second power tube is connected to said liquid outlet power element and said first end of said liquid storage tube, and said liquid outlet power element is used for discharging the liquid to be added from said liquid storage tube through said second power tube.

6. The liquid adding device according to claim 5, wherein said first power tube comprises a first branch tube and a second branch tube, said first branch tube is connected to said second end of said liquid storage tube, said liquid inlet power element is connected to said first branch tube and said second branch tube respectively, said liquid inlet power element is used for discharging waste liquid sequentially through said first branch tube and said second branch tube.

7. The liquid adding device according to claim 5, wherein the second power tube comprises a third branch tube and a fourth branch tube, the third branch tube is connected with the first end of the liquid storage tube, the liquid discharge power element is respectively connected with the third branch tube and the fourth branch tube, and the liquid discharge power element is used for drawing a pushing medium through the fourth branch tube and sequentially injecting the pushing medium into the third branch tube and the liquid storage tube, so that the pushing medium pushes the liquid to be added in the liquid storage tube out of the liquid storage tube.

8. The device according to claim 1, wherein said liquid intake assembly and said liquid discharge assembly are respectively provided in plurality, each of said plurality of first power tubes is connected to a first end of one of said reservoirs, each of said plurality of second power tubes is connected to a second end of one of said reservoirs, and said power element is respectively connected to said plurality of first power tubes and said plurality of second power tubes.

9. The charging device according to claim 8, characterized in that it further comprises a plurality of power control elements respectively connected to said second powered tubes for respectively opening or closing them.

10. A sample analyzer, comprising a detecting device and the liquid adding device of any one of claims 1-9, wherein the liquid adding device is used for adding a reagent into a reaction container, the reaction container is used for containing a sample, and the detecting device is used for detecting the sample.

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