CN211528421U

CN211528421U - External liquid supply device

Info

Publication number: CN211528421U
Application number: CN201921870898.2U
Authority: CN
Inventors: 廖厅; 李二圣; 高再兴
Original assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Current assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-09-18
Anticipated expiration: 2029-11-01

Abstract

An external liquid supply device comprises a rack, a liquid supply assembly and a control assembly, wherein a loading area for placing a liquid storage barrel is arranged on the rack; the liquid supply assembly is arranged on the rack and comprises a liquid supply pipeline and a valve, and the liquid supply pipeline is connected with the liquid storage barrel on the loading area and used for transferring liquid on the liquid storage barrel into the buffer container; the valve is arranged on the liquid supply pipeline and is used for controlling liquid flowing through the liquid supply pipeline; the control assembly comprises a main control board card assembly, a power switch, a power input port and a liquid supply interface, wherein the main control board card assembly is installed on the rack, the liquid supply interface is used for being connected with a sample analyzer, the liquid supply interface is connected with a liquid supply pipeline, the power input port is electrically connected with the main control board card assembly through the power switch, the main control board card assembly is electrically connected with a valve and used for controlling the opening and closing of the valve, so that more cleaning liquids can be provided for cleaning sample needles on the sample analyzer, and the sample analyzer can continuously work.

Description

External liquid supply device

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to an external confession liquid device.

Background

The sample analyzer is used for detecting and analyzing specific biological components, chemical substances and the like contained in a sample, and in order to avoid sample cross contamination, the sample needle is cleaned after sampling and sample adding are finished, and the sample needle can perform next sampling and sample adding actions after cleaning is finished.

However, at present, the cleaning liquid for cleaning the sample needle is installed in the sample analyzer through the liquid storage barrel, and due to the shortage of the internal space of the sample analyzer, the sample analyzer cannot accommodate more liquid storage barrels, so that the sample analyzer cannot continuously work, and the replacement of the liquid storage barrel in the sample analyzer is troublesome.

SUMMERY OF THE UTILITY MODEL

The utility model provides an external confession liquid device can provide more washing liquids and wash the sample needle on the sample analysis appearance, ensures that sample analysis appearance can continuous operation, also conveniently changes the stock solution bucket on the external confession liquid device moreover.

According to a first aspect of the embodiments of the present application, there is provided an external liquid supply device for a sample analyzer, including:

the liquid storage device comprises a rack, a liquid storage barrel and a liquid storage barrel, wherein the rack comprises a front plate, a rear plate, a left plate, a right plate, a bottom plate and a connecting plate, the front plate, the rear plate, the left plate, the right plate, the bottom plate and the connecting plate are enclosed into a step-type structure with an accommodating cavity, the connecting plate is connected between two steps, a loading area for placing the liquid storage barrel is arranged on the step surface of each step, and a detector is arranged on the loading area and used for detecting the placing condition of the liquid storage barrel on the loading area;

the liquid supply assembly is arranged on the inner side of the accommodating cavity and comprises a buffer container, a liquid supply pipeline, a pressure source and a valve for controlling liquid flowing through the liquid supply pipeline, the liquid storage barrel on the loading area is connected to the buffer container through the liquid supply pipeline, the valve is arranged on the liquid supply pipeline, and the pressure source is arranged on the liquid supply pipeline between the buffer container and the valve and used for generating pressure for the liquid storage barrel to discharge liquid to the buffer container;

the control assembly, with the distance setting is predetermine at the liquid supply subassembly interval, the control assembly is including installing hold inboard master control integrated circuit board subassembly of cavity, set up switch, the power input port in the frame outside and be used for connecting the confession liquid interface of sample analysis appearance, supply the liquid interface and pass through the liquid supply pipeline with buffer container connects, master control integrated circuit board subassembly with detector, valve and pressure source electricity are connected, the power input port passes through switch with master control integrated circuit board subassembly electric connection.

According to a second aspect of the embodiments of the present application, there is provided an external liquid supply device for a sample analyzer, comprising:

the rack is provided with a loading area for placing the liquid storage barrel;

the liquid supply assembly is arranged on the rack and comprises a liquid supply pipeline and a valve, and the liquid supply pipeline is connected with the liquid storage barrel on the loading area and is used for transferring liquid on the liquid storage barrel into a buffer container; the valve is arranged on the liquid supply pipeline and used for controlling liquid flowing through the liquid supply pipeline;

the control assembly comprises a main control board card assembly, a power switch, a power input port and a liquid supply interface, wherein the main control board card assembly, the power switch and the power input port are arranged on the rack, the liquid supply interface is used for being connected with a sample analyzer, the liquid supply interface is connected with a liquid supply pipeline, the power input port is connected with the main control board card assembly through the power switch, the main control board card assembly is electrically connected with the valve, and the main control board card assembly is used for controlling the opening and the closing.

The utility model discloses an among the liquid supply device, the frame includes front bezel, back plate, left board, right board, bottom plate and connecting plate, front bezel, back plate, left board, right board, bottom plate and connecting plate enclose into jointly and have the step structure that holds the cavity, supply liquid subassembly and partial control subassembly to install hold in the cavity, the connecting plate is connected between two steps, it sets up on the step face of every step to load the district.

The utility model discloses an among the liquid supply device, liquid supply assembly and control assembly interval preset distance set up.

The utility model discloses an among the liquid supply device, still be equipped with a plurality of parting beads in the frame, it is a plurality of the parting bead will load the district and fall into a plurality of loading positions.

The utility model discloses an among the liquid supply device, the left side board the right side board and a plurality of the equal perpendicular to every step face of parting bead.

The utility model discloses an among the liquid supply device, load and be provided with the backplate in the district, the backplate be provided with the detector that main control integrated circuit board subassembly electricity is connected, the quantity and the placing of detector load the quantity phase-match of stock solution bucket in the district, be used for the response load the condition of placing of stock solution bucket in the district.

The utility model discloses an among the liquid supply device, the detector includes the opto-coupler inductor, the opto-coupler inductor sets up the lower extreme of backplate.

The utility model discloses an among the liquid supply device, load and be provided with preceding baffle on the district and with the pilot lamp that main control integrated circuit board subassembly electricity is connected, the pilot lamp sets up on the preceding baffle or on one side that preceding baffle and connected plate are connected, be used for showing and place the user state of stock solution bucket on the loading district.

The utility model discloses an among the liquid supply device, the pilot lamp is the triangle-shaped shape, the pointed angle of pilot lamp is directional to be placed stock solution bucket on the loading district.

The utility model discloses an among the liquid supply device, the pilot lamp has at least three kinds of instruction states, the instruction state includes load in the district stock solution bucket be in supply liquid instruct load in the district stock solution bucket and supply liquid pipeline not be connected well or the liquid in the stock solution bucket is not enough instruct and reach load in the district liquid normal use instruction in the stock solution bucket.

The utility model discloses an among the liquid supply device, preceding baffle with every step face of backplate perpendicular to.

The utility model discloses an among the liquid supply device, the left side board with the height of right side board is followed the preceding baffle to the backplate increases gradually.

The utility model discloses an among the liquid supply device, the connecting plate is the inclined baffle structure of indent tilt up, the connecting plate with place the distance of stock solution bucket steadily decreases in proper order on the loading region.

The utility model discloses an among the liquid supply device, the one end of liquid supply pipeline is equipped with quick connector for with place stock solution bucket grafting on the loading district.

The utility model discloses an among the liquid supply device, be equipped with the stores pylon that is U type structure in the frame, the centre of stores pylon is equipped with the stores pylon recess, the width of stores pylon recess the width in U type groove on the stores pylon all with quick connector's width looks adaptation.

The utility model discloses an among the liquid supply device, main control integrated circuit board subassembly sets up on one of them of left side board and right board, control assembly includes:

the power board card assembly is arranged on the other one of the left plate and the right plate, and the power board card assembly is installed in the accommodating cavity.

In the liquid supply device of the utility model, the power supply board card assembly is provided with a power baffle plate for preventing the liquid on the liquid supply pipeline from splashing on the power supply board card assembly; and/or a main control baffle plate is arranged on the main control board card assembly and used for preventing liquid on the liquid supply pipeline from splashing on the main control board card assembly.

The utility model discloses an among the liquid supply device, switch, power input port and confession liquid interface set up the outside of left side board or right side board, just switch, power input port and confession liquid interface are located one side of power integrated circuit board subassembly.

The utility model discloses an among the liquid supply device, the left side board or be equipped with the indent district on the right side board, switch, power input port and confession liquid interface are installed on the indent district.

The utility model discloses an among the liquid supply device, be provided with the baffle between switch, power input port and the confession liquid interface.

In the liquid supply apparatus of the present invention, the liquid supply assembly includes:

a manifold block disposed on the liquid supply line between the valve and the buffer container;

the liquid supply pipeline comprises a first section of pipeline and a second section of pipeline, liquid in the liquid storage barrel on the loading area flows together to the confluence block through the first section of pipeline, the confluence block is communicated with the buffer container through the second section of pipeline, and the valve is arranged on the first section of pipeline.

The utility model discloses an among the liquid supply device, the liquid supply subassembly still includes:

and the bubble detector is arranged in the second section of pipeline and is used for acquiring a bubble signal in the second section of pipeline.

The utility model discloses an among the liquid supply device, buffer container sets up in holding the cavity, supply liquid interface with buffer container connects, buffer container is last to be passed through supply pipeline is connected with the pressure source, the pressure source is connected the bubble detector with buffer container's supply pipeline is used for producing the stock solution bucket to the pressure of buffer container flowing back.

In the liquid supply device of the present invention, the valve includes:

the number of the electromagnetic control valves is matched with that of the liquid storage barrels placed on the loading area;

wherein, a plurality of said electromagnetic control valves are installed correspondingly on said first section pipeline.

In the liquid supply device of the present invention, the valve further comprises:

the electromagnetic valve mounting seat is used for mounting a plurality of electromagnetic control valves and is mounted on the rack.

The utility model discloses an among the liquid supply device, the top of frame both sides all is equipped with the type of falling U handle, is used for promoting supply advance or retreat of liquid supply device.

The utility model discloses an among the liquid supply device, the below of frame is equipped with truckle and foot cup, so that liquid supply device's removal or fixed.

The technical scheme provided by the embodiment of the application can have the following beneficial effects: the application designs an external liquid supply device, including being provided with the frame that loads the district, wherein, be equipped with control assembly in the frame and be connected to the liquid supply assembly who loads the district and go up the liquid storage bucket, can communicate with the liquid supply assembly through the liquid supply interface on the control assembly, and then can control the liquid storage bucket to sample analysis appearance flowing back, so that provide more washing liquids and supply the washing of sample needle on the sample analysis appearance, ensure that sample analysis appearance can continuous operation, and the liquid storage bucket in the frame also conveniently changes, reduce a large amount of human costs.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

Fig. 1 is a schematic structural view of an external liquid supply device according to an embodiment of the present invention;

FIG. 2 is a side cross-sectional view of the liquid supply apparatus of FIG. 1;

FIG. 3 is a fluid path system diagram of the liquid supply apparatus of FIG. 1;

FIG. 4 is a schematic view of the liquid supply apparatus of FIG. 1;

FIG. 5 is a schematic view of the liquid supply apparatus of FIG. 1;

FIG. 6 is a schematic view of the liquid supply apparatus of FIG. 1;

FIG. 7 is a schematic cross-sectional view of the liquid supply apparatus of FIG. 1;

FIG. 8 is an exploded schematic view of the liquid supply apparatus of FIG. 1;

FIG. 9 is a partial schematic view of the liquid supply apparatus of FIG. 1;

FIG. 10 is a schematic view of the quick connector of FIG. 1 placed on a hanger;

FIG. 11 is a schematic view of the quick connector of FIG. 1 placed on a hanger;

fig. 12 is a schematic view of the structure of the hanger in fig. 1.

Description of reference numerals:

10. a frame; 11. a front plate; 12. a back plate; 13. a left panel; 131. a partition plate; 14. a right plate; 141. a handle; 15. a base plate; 151. a loading zone; 1511. a parting strip; 1512. a tailgate; 1513. a front baffle; 152. A foot cup; 153. a caster wheel; 16. a connecting plate; 161. a hanger; 1611. a hanger groove; 1612. a U-shaped groove;

20. a liquid supply assembly; 21. a liquid supply line; 211. a quick connector; 22. a flow converging block; 23. a valve; 24. A buffer container; 25. a pressure source; 26. a bubble detector;

30. a control component; 31. a detector; 32. an indicator light; 33. a power supply input port; 34. a power switch; 35. a liquid supply interface; 36. a main control board card assembly; 37. a power board card assembly;

100. a liquid storage barrel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

The utility model provides an external confession liquid device belongs to medical instrument technical field, the sample analysis appearance includes biochemical analysis appearance, the immunity analyzer, blood cell analysis appearance, special protein analysis appearance, one or several kinds among glycated haemoglobin analysis appearance and the blood type analysis appearance, a specific organism composition for containing in the sample, chemical substance etc. detect and analyze, in order to avoid sample cross contamination, take a sample, do cleaning process to the sample needle after the application of sample, the sample needle just can do next sample after the completion of washing, the application of sample action.

As shown in fig. 1 to 12, according to a first aspect of the present application, the present application provides an external liquid supply device for a sample analyzer, including a rack 10, a liquid supply assembly 20, and a control assembly 30, as shown in fig. 4 to 6, the rack 10 includes a front plate 11, a rear plate 12, a left plate 13, a right plate 14, a bottom plate 15, and a connecting plate 16, the front plate 11, the rear plate 12, the left plate 13, the right plate 14, the bottom plate 15, and the connecting plate 16 together enclose a stepped structure having a receiving cavity, and the liquid supply assembly 20 and a portion of the control assembly 30 are mounted inside the receiving cavity. In this embodiment, the connecting plate 16 is connected between two steps, a loading area 151 for placing the liquid storage barrel is provided on the step surface of each step, and a detector 31 is provided on the loading area 151 for detecting the placement condition of the liquid storage barrel 100 on the loading area 151.

As shown in fig. 6 to 9, the liquid supply assembly 20 includes a buffer container 24, a liquid supply pipeline 21, a pressure source 25 and a valve 23 for controlling liquid flowing through the liquid supply pipeline 21, the liquid storage barrel on the loading area 151 is connected to the buffer container 24 through the liquid supply pipeline 21, the valve 23 is disposed on the liquid supply pipeline 21, and the pressure source 25 is disposed on the liquid supply pipeline 21 between the buffer container 24 and the liquid storage barrel for generating pressure for discharging liquid from the liquid storage barrel to the buffer container 24.

As shown in FIGS. 6-9, the control assembly 30 may be spaced a predetermined distance from the liquid supply assembly 20, wherein the predetermined distance is a safety distance between the control assembly 30 and the liquid supply assembly 20 to ensure that the liquid supply assembly 20 does not affect the electrical safety of the control assembly 30, such as by providing the control assembly 30 separate from the liquid supply assembly 20, or by providing the control assembly 30 and the liquid supply assembly 20 in different areas of the receiving cavity, or by providing the control assembly 30 with corresponding stops to prevent the liquid supply assembly 20 from affecting the control assembly 30 during operation.

Specifically, the control assembly 30 includes a main control board card assembly 36 installed inside the accommodating cavity, a power switch 34 installed outside the rack, a power supply input port 33, and a liquid supply interface 35 for connecting the sample analyzer, the liquid supply interface 35 is connected to the buffer container 24 through the liquid supply pipeline 21, the main control board card assembly 36 is electrically connected to the detector, the valve 23, and the pressure source 25, and the power supply input port 33 is electrically connected to the main control board card assembly 36 through the power switch 34 for supplying power required by the work to the main control board card assembly 36.

It should be noted that the pressure source 25 may be a pressure pump, the number of steps of the frame 10 constituting the stepped structure may be two, three or even more than three, and the present application is not limited in any way, and the user may set the number of steps of the frame 10 according to practical situations. In the following embodiments, the number of steps of the rack 10 is mainly two for example, and for other steps of the rack 10, the description of the embodiment is omitted here.

In an alternative embodiment, as shown in fig. 4 to 6, a plurality of spacers 1511 are further disposed on the frame 10, and the plurality of spacers 1511 divide the loading area 151 into a plurality of loading positions, which not only facilitates the setting of the external dimensions of the liquid supply device, for example, the length of each loading position is equal to or slightly greater than the width of the liquid storage barrel 100, but also requires five loading positions for each step of the frame 10, so that the total length of the frame 10 can be calculated, and the frame is prevented from being large; and it is convenient for the user to know the number of the liquid storage barrels 100 required to be placed in the liquid supply device. In addition, place after loading district 151 when stock solution bucket 100, because all separate through parting 1511 between every two adjacent stock solution buckets 100, avoid contact each other between the stock solution bucket 100 and stock solution bucket 100 is not good to be changed, even when placing stock solution bucket 100, stock solution bucket 100 puts inaccurate also can lead to other stock solution buckets 100 to place not down, influences user's operating time, also causes stock solution bucket 100 to change troublesome, characteristics such as inefficiency.

In an alternative embodiment, the left plate 13, the right plate 14 and the plurality of spacers 1511 are perpendicular to each of the steps to prevent the liquid storage tank 100 from tilting in the loading position, so as to ensure that the liquid storage tank 100 can be laid on the steps, and to ensure that the liquid storage tank 100 does not tilt in the direction of the left plate 13, the right plate 14 or the spacers 1511 when the liquid supply apparatus is moved.

In an alternative embodiment, a rear baffle 1512 is disposed on the loading region 151, and the detectors 31 are mounted on the rear baffle 1512, in this embodiment, the number of the detectors 31 matches the number of the liquid storage barrels 100 placed on the loading region 1511, so as to sense the placement of the liquid storage barrels 100 on the loading region 1511.

Specifically, the detector 1511 includes an optical coupler sensor, the optical coupler sensor is disposed at the lower end of the rear baffle 1512, and each loading position corresponds to an optical coupler sensor, when the liquid storage barrel 100 is placed on the loading position, the loading position is detected by the optical coupler sensor corresponding to the loading position, so as to ensure that the liquid supply assembly 20 can drain the liquid storage barrel 100 placed on the loading position to the buffer container 24, or when the liquid supply assembly 20 detects that the liquid storage barrel 100 on the loading position has no cleaning liquid, the liquid supply assembly 20 stops draining the liquid storage barrel 100 on the loading position to the buffer container 24 until the optical coupler sensor senses that the liquid storage barrel on the loading position is replaced by a user, the liquid supply assembly 20 changes the liquid storage barrel on the loading position to an available state, so that when a subsequent liquid supply device supplies liquid to the sample analyzer, the cleaning liquid on other liquid storage barrels is consumed or the liquid storage barrel currently in the liquid supply state is consumed, the replaced liquid storage barrel can be restarted, and the liquid supply device can be ensured to continuously supply liquid to the sample analyzer.

In an alternative embodiment, a front baffle 1513 and an indicator light 32 electrically connected to the main control board card assembly are disposed on the loading area 151, wherein the indicator light 32 is disposed on the front baffle 1513 or on the side of the front baffle 1513 connected to the connecting plate 16 for displaying the use status of the liquid storage barrel placed on the loading area 151.

Specifically, the indicator 32 may be disposed on the front baffle 1513 on each step, or may be disposed at a position between two step surfaces, that is, the indicator 32 may be disposed at any position on the connecting plate 16. Since the number of steps of the rack 10 constituting the stepped structure is two, in order to facilitate observation by a user, the position of the indicator light 32 is just below or parallel to the eyes of the human body, in the present embodiment, the indicator light 32 is disposed between two steps of the rack 10, wherein the front baffle 1513 includes a slope structure and a vertical structure, the position where the front baffle 1513 is connected to the connecting plate 16 or the front plate 11 is the slope structure, the position where the front baffle 1513 is located in the loading area 151 is the vertical structure, and the indicator light 32 is disposed on the slope structure where the front baffle 1513 is connected to the connecting plate 16.

In an alternative embodiment, the indicator light 32 has a triangular shape with its pointed angle pointing towards the tank placed on the loading area. In this embodiment, since the indicator lights 32 are disposed between two steps of the rack 10, the indicator lights 32 have two sets with the same number, wherein one set of indicator lights 32 points to the liquid storage barrel on the upper step of the rack 10, the other set of indicator lights 32 points to the liquid storage barrel on the lower step of the rack 10, and the two sets of indicator lights 32 are alternately disposed in sequence, that is, the pointing directions of every two adjacent indicator lights 32 are different, so that the user can observe the states of the liquid storage barrels 100 on the upper and lower loading regions 151 of the rack 10, and avoid replacing the liquid storage barrels 100 of the upper loading region 151 with the liquid storage barrels 100 of the lower loading region 151.

In an alternative embodiment, the indicator light 32 has at least three indication states, including an indication that the liquid storage barrel 100 in the loading region 151 is being supplied with liquid, an indication that the liquid storage barrel 100 in the loading region 151 is not connected to the liquid supply pipeline 21 or the liquid in the liquid storage barrel 100 is not enough, and an indication that the liquid in the liquid storage barrel 100 in the loading region 151 is normally used, so that a user can operate according to the state of the liquid storage barrel 100 on the loading region 151, and also avoid misoperation of the liquid storage barrel 100 during liquid drainage, for example, when the indicator light 32 indicates that the liquid storage barrel 100 in the loading region 151 is being supplied with liquid, the user can avoid influencing the liquid storage barrel 100 in the loading region 151 being supplied with liquid as much as possible during replacement of the upper liquid storage barrel 100 in another loading region; when the indicator light 32 is in the warning state, the warning state includes that the liquid in the liquid storage barrel 100 in the loading area 151 is insufficient and the liquid supply pipeline 21 is not well connected with the liquid storage barrel 100, so that a user can replace the liquid storage barrel 100 corresponding to the loading position or recheck the connection between the liquid supply pipeline 21 and the liquid storage barrel 100 according to the indication of the indicator light 32, and the sample analyzer is prevented from being incapable of continuously working due to insufficient cleaning liquid on the liquid storage barrel 100; when the indicator light 32 indicates that the liquid in the liquid storage barrel 100 in the loading area 151 is normally used, the user can clearly know the state of the liquid storage barrel 100 on the liquid supply device, so that the situation that the liquid supply device is needed to find that the liquid storage barrel 100 is insufficient or other problems cause the sample analyzer to be incapable of continuously working and delay the progress of sample analysis is avoided.

In an alternative embodiment, the front barrier 1513 and the back barrier 1512 are perpendicular to each step surface to prevent the reservoir 100 from tipping forward or backward in the loading area 151, thereby ensuring that the reservoir 100 can be kept flat on the step surface at all times.

In an alternative embodiment, the height of the left and

right panels

13, 14 gradually increases from the front wall 1513 to the rear wall 1512 to facilitate the removal of the cartridge 100 from the loading position by the user, and also to facilitate the coupling of the front wall 1513 and the rear wall 1512. In this embodiment, the distance between the front baffle 1513 and the rear baffle 1512, the distance between the leftmost spacer 1511 and the left plate 13, the distance between the rightmost spacer 1511 and the right plate 14, and the distance between two adjacent spacers 1511 are all matched with the length and width of the liquid storage barrel 100, so as to prevent the liquid storage barrel 100 from being unable to trigger the optocoupler sensor due to the long distance between the liquid storage barrel 100 and the optocoupler sensor on the rear baffle 1512; and at the same time, the storage barrel 100 can be conveniently placed or taken out.

In an alternative embodiment, the connecting plate 16 is an inclined baffle structure that is concave and inclined upwards, in this embodiment, the distance between the connecting plate 16 and the liquid storage barrel 100 on the loading area 151 decreases gradually, so that a user can conveniently pick and place the liquid storage barrel 100 on the loading area 151

Specifically, the connecting plate 16 is inclined upwards along the rack 10 from the lower step and is connected with the front baffle 1513 of the upper step, and the minimum distance between the connecting plate 16 and the liquid storage barrel 100 on the placing and loading area 151 is just convenient for taking and placing the liquid storage barrel 100, and as the connecting plate 16 and the lower step are in an inward concave shape, most space can be made up at the position of the lower step by the connecting plate 16, so that the arrangement of the loading area 151 on the lower step is convenient, and the attractiveness of the liquid supply device is not affected.

In addition, the indicator light 32 has a certain distance with the highest surface of the liquid storage barrel 100 placed on the lower step, and the height of the indicator light 32 is moderate, so that the user can observe the indicator light conveniently, and meanwhile, the indicator light can be prevented from being blocked by the liquid storage barrel 100 on the lower step.

In an alternative embodiment, as shown in fig. 8 to 12, one end of the liquid supply pipe 21 is provided with a quick-connect connector 211 for connecting with a liquid storage barrel placed on the loading area.

Specifically, the quick connector 211 may be provided with a sensor for sensing whether the quick connector 211 is properly inserted into the liquid storage barrel in the loading area, and when the quick connector 211 is properly inserted into the liquid storage barrel, the liquid supply assembly 20 changes the liquid storage barrel in the loading area to an available state, so that when the subsequent liquid supply device supplies liquid to the sample analyzer, the liquid storage barrel that has been replaced may be restarted after the cleaning liquid on the other liquid storage barrels is consumed or the liquid storage barrel that is currently in the liquid supply state is consumed, thereby ensuring that the liquid supply device can continuously supply liquid to the sample analyzer; when the quick connector 211 is not properly connected with the liquid storage barrel, the liquid supply device reminds the user of re-connection, and by adopting the technical scheme of the quick connector 211, the user can be conveniently and quickly connected with the liquid storage barrel to the liquid supply assembly 20, and the user can conveniently replace the liquid storage barrel on the loading area.

In an alternative embodiment, the rack 10 is provided with a hanging rack 161 having a U-shaped structure, wherein a hanging rack groove 1611 is provided in the middle of the hanging rack 161, and in this embodiment, the width of the hanging rack groove 1611 and the width of the U-shaped groove 1612 on the hanging rack 161 are both adapted to the width of the quick connector 211, so that the quick connector 211 can be placed on the U-shaped groove 1612 or hung on the hanging rack groove 1611. When the liquid storage barrel is replaced in the loading area, the user can place the quick connector 211 on the U-shaped groove 1612 or hang the quick connector 211 on the hanging rack groove 1611, so that the quick connector 211 is prevented from being polluted, and the quick connector 211 is convenient to take and place.

In an alternative embodiment, the control assembly 30 includes a power board assembly 37, one of the power board assembly 37 and the main control board assembly 36 is disposed on a left board, the other of the power board assembly 37 and the main control board assembly 36 is disposed on a right board, and the liquid supply assembly 20 is installed between the left board and the right board, so as to avoid the liquid supply assembly 20 from affecting the power board assembly 37 and the main control board assembly 36.

Specifically, as shown in fig. 5 to 7, a power board assembly 37 is mounted on the left plate 13, a main control board assembly 36 is mounted on the right plate 14, and a power baffle is arranged on the power board assembly 37 and used for preventing liquid on the liquid supply pipeline 21 from splashing onto the power board assembly; and/or a main control baffle plate is arranged on the main control board card assembly 36 and is used for preventing liquid on the liquid supply pipeline 21 from splashing on the main control board card assembly 36, and the electricity utilization safety of the liquid supply device is improved. In addition, in order to prolong the service life of the liquid supply device, the frame 10 may be made of metal, wherein the bottom of the frame 10 is provided with a grounding screw hole, which is communicated with the grounding wire of the power input port 33.

In an optional embodiment, the power board assembly 37 includes a 24V power board and a 12V power board, the main control board assembly 36 includes a main control board and a bubble detection board, the power board assembly 37 and the main control board assembly 36 are directly fixed on the right board 14 and the left board 13 inside the accommodating cavity respectively through screws, wherein the power board assembly 37 and the main control board assembly 36 are both provided with bases, the power board assembly 37 and the main control board assembly 36 can be respectively installed on the bases, and then the bases are installed on the right board 14 and the left board 13, thereby avoiding the limitation of sight or space, and enabling a tool or a hand to touch the main control board assembly 36 and the power board assembly 37, thereby causing the main control board assembly 36 and the power board assembly 37 to be damaged.

In an alternative embodiment, the power switch 34, the power input port 33 and the liquid supply interface 35 are disposed on the outer side of the left plate 13 or the right plate 14, and in this embodiment, the power switch 34, the power input port 33 and the liquid supply interface 35 are disposed on one side of the power board assembly 37, which facilitates the connection of wires between the power switch 34 and the power input port 33 and the power board assembly 37, so that the power switch 34 can control the power connection between the external power source connected to the power input port 33 and the power board assembly 37, and thus the required operating power can be supplied to the main control board assembly 36 through the power board assembly 37.

Specifically, when the power switch 34, the power input port 33 and the liquid supply interface 35 are arranged on the left plate 13, an inner concave area is arranged on the left plate 13, and the power switch 34, the power input port 33 and the liquid supply interface 35 are arranged on the inner concave area on the left plate 13, so that the power switch 34, the power input port 33 and the liquid supply interface 35 are prevented from protruding out of the left plate 13, and the power switch 34, the power input port 33 and the liquid supply interface 35 can be better protected; when the power switch 34, the power input port 33 and the liquid supply interface 35 are arranged on the right plate 14, the right plate 14 is provided with an inner concave area, and the power switch 34, the power input port 33 and the liquid supply interface 35 are arranged on the inner concave area on the right plate 14, so that the power switch 34, the power input port 33 and the liquid supply interface 35 are prevented from protruding out of the right plate 14, and the power switch 34, the power input port 33 and the liquid supply interface 35 can be better protected.

In an alternative embodiment, the partition 131 is disposed between the power switch 34, the power input port 33 and the liquid supply port 35, so as to prevent liquid on the liquid supply port 35 from affecting the power switch 34 and the power input port 33, and further improve the power consumption safety of the liquid supply device.

In an alternative embodiment, as shown in fig. 3, 7 to 9, the liquid supply assembly 20 comprises a manifold block 22, wherein the manifold block 22 is arranged on the liquid supply line between the valve 23 and the buffer container 24. In the present embodiment, the liquid supply pipeline 21 includes a first pipeline and a second pipeline, the liquid in the liquid storage barrel on the loading area is converged into the confluence block 22 through the first pipeline, the confluence block 22 is communicated with the buffer container 24 through the second pipeline, and the valve 23 is disposed on the first pipeline.

Specifically, the quantity of first section pipeline and the quantity phase-match of stock solution bucket on the loading district, every stock solution bucket all converges through a first section pipe connection to converge piece 22, converges piece 22 rethread second section pipeline and buffer container 24 intercommunication.

In an alternative embodiment, the liquid supply assembly 20 further comprises a bubble detector 26, the bubble detector 26 being mounted in the second length of tubing for obtaining a bubble signal in the second length of tubing.

Specifically, the bubble detector 26 is in signal connection with the bubble detection plate, when the bubble detection plate detects that bubbles exist in the second section of pipeline through the bubble detector 26, the bubble detection plate sends a signal to the main control board, and the main control board controls the valve 23 corresponding to the liquid storage barrel on the loading area to be closed and opens the valve 23 corresponding to the other liquid storage barrel on the loading area, so that liquid can be continuously discharged to the buffer container 24.

In an alternative embodiment, the valve 23 comprises a plurality of solenoid-operated valves, the number of which matches the number of the cartridges placed on the loading area, and in this embodiment, a solenoid-operated valve is correspondingly installed on each of the first sections of the pipes so as to control the cartridges on the loading area respectively.

In an optional embodiment, the valve 23 further includes a solenoid valve mounting seat, the plurality of solenoid control valves are all mounted on the solenoid valve mounting seat, and then mounted on the rack 10 through the solenoid valve mounting seat, so as to prevent the plurality of solenoid control valves from being directly mounted on the rack 10, which is not only difficult to mount and wastes a lot of manpower and material resources due to blocked vision and space, but also easily damages the solenoid control valves.

In an alternative embodiment, as shown in fig. 4 to 6, an inverted U-shaped handle 141 is provided above both sides of the frame 10 for pushing the liquid supply device forward or backward. In an embodiment, the handles 141 are disposed at left and right sides of the upper step, which facilitates the user to push the liquid supply device.

In an alternative embodiment, casters 153 and a foot cup 152 are provided under the housing 10 to facilitate movement or fixation of the liquid supply apparatus. When the liquid supply device needs to move, the foot cup 152 is adjusted to enable the foot cup 152 to be separated from a horizontal plane for placing the liquid supply device, the liquid supply device is supported through the caster 153, and at the moment, a user can push the liquid supply device; when the liquid supply device needs to be fixed, the foot cup 152 is adjusted to enable the caster 153 to be separated from the horizontal plane for placing the liquid supply device, and the liquid supply device is supported by the foot cup 152.

As shown in fig. 1 to 12, according to a second aspect of the present application, the present application further provides an external liquid supply device for a sample analyzer, including a rack 10, a liquid supply assembly 20 and a control assembly 30, wherein the rack 10 is provided with a loading area 151 for placing a liquid storage barrel 100, the liquid supply assembly 20 and the control assembly 30 are both mounted on the rack 10, in this embodiment, the liquid supply assembly 20 includes a liquid supply pipeline 21 and a valve 23, and the liquid supply pipeline 21 is connected to the liquid storage barrel 100 on the loading area 151 for transferring liquid on the liquid storage barrel 100 to a buffer container 24; a valve 23 is provided on the liquid supply line 21 for controlling the liquid flowing through the liquid supply line 21.

As shown in fig. 3, 6 to 9, the control assembly 30 includes a main control board assembly 36 mounted on the rack 10, a power switch 34, a power input port 33, and a liquid supply interface 35 for connecting the sample analyzer, wherein the liquid supply interface 35 is connected to the liquid supply pipeline 21, the power input port 33 is electrically connected to the main control board assembly 36 through the power switch 34, and the main control board assembly 36 is electrically connected to the valve 23 for controlling the opening and closing of the valve 23.

It should be noted that the buffer container 24 may be disposed inside the liquid supply device or outside the liquid supply device, for example, the buffer container 24 is disposed in the sample analyzer, and the present application is not limited thereto.

In addition, the loading area 151 of the rack 10 may be configured in any structure, such as a drawer type or a plane structure, and the present application is not limited thereto.

In an alternative embodiment, as shown in fig. 4 to 6, the frame 10 includes a front plate 11, a rear plate 12, a left plate 13, a right plate 14, a bottom plate 15 and a connecting plate 16, the front plate 11, the rear plate 12, the left plate 13, the right plate 14, the bottom plate 15 and the connecting plate 16 together define a stepped structure having a receiving cavity, wherein the liquid supply assembly 20 and a part of the control assembly 30 are mounted in the receiving cavity, the connecting plate 16 is connected between two steps, and the loading area 151 is disposed on a step surface of each step.

In an alternative embodiment, as shown in FIGS. 6-9, the control assembly 30 is spaced a predetermined distance from the liquid supply assembly 20, wherein the predetermined distance is a safety distance between the control assembly 30 and the liquid supply assembly 20 to ensure that the liquid supply assembly 20 does not affect the electrical safety of the control assembly 30, such as by providing the control assembly 30 separate from the liquid supply assembly 20, or by providing the control assembly 30 and the liquid supply assembly 20 in different areas of the receiving cavity, or by providing the control assembly 30 with corresponding stops to prevent the liquid supply assembly 20 from affecting the control assembly 30 during operation.

It should be noted that the number of the steps of the rack 10 constituting the stepped structure may be two, three, or even more than three, and the present application is not limited at all, and the user may set the number of the steps of the rack 10 according to the actual situation. In the following embodiments, the number of steps of the rack 10 is mainly two for example, and for other steps of the rack 10, the description of the embodiment is omitted here.

Specifically, the indicator 32 may be disposed on the front baffle 1513 on each step, or may be disposed at a position between two step surfaces, that is, the indicator 32 may be disposed at any position on the connecting plate 16. Since the number of steps of the rack 10 constituting the step structure is two, in order to facilitate observation by a user, the position of the indicator light 32 is just below or parallel to the eyes of the human body, in this embodiment, the indicator light 32 is disposed between two steps of the rack 10, wherein the front baffle includes an inclined surface structure and a vertical surface structure, the position of the front baffle 1513 connected to the connecting plate 16 or the front plate 11 is the inclined surface structure, the position of the front baffle 1513 located in the loading area 151 is the vertical surface structure, and the indicator light 32 is disposed on the inclined surface structure of the front baffle 1513 connected to the connecting plate 16.

In an alternative embodiment, the indicator light 32 has at least three indication states, including an indication that the liquid storage barrel 100 in the loading region 151 is being supplied with liquid, an indication that the liquid storage barrel 100 in the loading region 151 is not connected to the liquid supply pipeline 21 or the liquid in the liquid storage barrel 100 is not enough, and an indication that the liquid in the liquid storage barrel 100 in the loading region 151 is normally used, so that a user can operate according to the state of the liquid storage barrel 100 on the loading region 151, and also avoid misoperation of the liquid storage barrel 100 during liquid drainage, for example, when the indicator light 32 indicates that the liquid storage barrel 100 in the loading region 151 is being supplied with liquid, the user can avoid influencing the liquid storage barrel 100 in the loading region 151 being supplied with liquid as much as possible during replacement of the upper liquid storage barrel 100 in another loading region; when the indicator light 32 is in the warning state, the warning state includes that the liquid in the liquid storage barrel 100 in the loading area 151 is insufficient and the liquid supply pipeline 21 is not well connected with the liquid storage barrel 100, so that a user can replace the liquid storage barrel 100 corresponding to the loading position or recheck the connection between the liquid supply pipeline 21 and the liquid storage barrel 100 according to the indication of the indicator light 32, and the sample analyzer is prevented from being incapable of continuously working due to insufficient cleaning liquid on the liquid storage barrel 100 or the non-good connection between the liquid supply pipeline 21 and the liquid storage barrel 100; when the indicator light 32 indicates that the liquid in the liquid storage barrel 100 in the loading area 151 is normally used, the user can clearly know the state of the liquid storage barrel 100 on the liquid supply device, so that the situation that the liquid supply device is needed to find that the liquid storage barrel 100 is insufficient or other problems cause the sample analyzer to be incapable of continuously working and delay the progress of sample analysis is avoided.

In an alternative embodiment, the height of the left and

right panels

Specifically, the connecting plate 16 is inclined upwards along the rack 10 from the lower step and is connected with the front baffle 1513 of the upper step, and the minimum distance between the connecting plate 16 and the liquid storage barrel 100 on the loading area 151 is just convenient for taking and placing the liquid storage barrel 100, and as the connecting plate 16 is concave in the lower step, most space can be made up at the position of the lower step by the connecting plate 16, so that the arrangement of the loading area 151 on the lower step is convenient, and the attractiveness of the liquid supply device is not affected.

Specifically, the quick connector 211 can be provided with an inductor for inducing whether the quick connector 211 is properly inserted into the liquid storage barrel in the loading area, when the quick connector 211 is inserted into the liquid storage barrel, the liquid supply assembly 20 changes the liquid storage barrel to a usable state at the loading position, so that when the subsequent liquid supply device supplies liquid to the sample analyzer, after the cleaning liquid on other liquid storage barrels is consumed or the liquid storage barrel currently in the liquid supply state is consumed, the replaced liquid storage barrel can be restarted to ensure that the liquid supply device can continuously supply liquid to the sample analyzer, when the quick connector 211 is not properly connected with the liquid storage barrel, the liquid supply device reminds the user of re-connection, and by adopting the technical scheme of the quick connector 211, the user can be conveniently and quickly connected with the liquid storage barrel to the liquid supply assembly 20, and the user can conveniently replace the liquid storage barrel on the loading area.

In an alternative embodiment, the buffer container 24 is disposed in the accommodating cavity, the liquid supply port 35 is connected to the buffer container 24 through the liquid supply line 21, the buffer container 24 is connected to the pressure source 25 through the liquid supply line, and the pressure source 25 is connected to the bubble detector 26 and the liquid supply line of the buffer container 24 for generating the pressure for the liquid to be discharged from the liquid storage barrel to the buffer container 24.

It should be noted that when the buffer container 24 is disposed outside the accommodating cavity, the pressure source 25 may also be disposed outside the accommodating cavity, and in the present embodiment, both the buffer container 24 and the pressure source 25 are disposed inside the accommodating cavity, so that the entire liquid supply device is more compact, and the liquid storage barrel on the loading area is convenient to discharge liquid to the buffer container 24, and furthermore, the pressure source 25 may be a pressure pump.

In an alternative embodiment, as shown in fig. 4 to 6, an inverted U-shaped handle 141 is provided above both sides of the frame 10 for pushing the liquid supply device forward or backward. In this manner, the handles 141 are disposed on the left and right sides of the upper step, thereby facilitating the pushing of the liquid supply device by the user.

In an alternative embodiment, casters 153 and a foot cup 152 are provided under the housing 10 to facilitate movement or fixation of the liquid supply apparatus. When the liquid supply device needs to move, the foot cup 152 is adjusted to enable the foot cup 152 to be separated from a horizontal plane for placing the liquid supply device, the liquid supply device is supported through the caster 153, and at the moment, a user can push the liquid supply device; when the liquid supply device needs to be fixed, the foot cup 152 is adjusted so that the caster 153 is separated from the horizontal plane on which the liquid supply device is placed, and the liquid supply device is supported by the foot cup 15.

As shown in fig. 1 to 12, according to a third aspect of the embodiments of the present application, there is provided a liquid supply method implemented by an external liquid supply device disposed outside a sample analyzer, wherein the external liquid supply device includes a liquid supply assembly 20, a liquid storage barrel 100 disposed on a loading area 151, and a detector 31 for detecting the disposition of the liquid storage barrel 100 on the loading area 151, and the liquid supply method includes the steps of:

the liquid storage barrel 100 on the loading area 151 supplies liquid to a cleaning component of the sample analyzer through the liquid supply component 20;

when the liquid in the liquid storage barrel 100 on the loading area 151 is insufficient, the detector 31 sends out a warning signal for replacing the liquid storage barrel.

Specifically, detector 31 includes the opto-coupler inductor, the opto-coupler inductor sets up on loading district 151, place on loading district 151 when stock solution bucket 100, the opto-coupler inductor on the loading district 151 can detect loading district 151, in order to ensure that liquid supply assembly 20 can will place stock solution bucket 100 on the loading position to buffer container 24 flowing back, or after liquid supply assembly 20 detected that stock solution bucket 100 on the loading position has not had the washing liquid, liquid supply assembly 20 stopped that this stock solution bucket 100 on the loading position discharged liquid to buffer container 24 and sent out the warning signal who changes the stock solution bucket.

In an alternative embodiment, the number of the liquid storage barrels 100 on the loading area 151 is multiple, and when the detector 31 sends a warning signal for replacing the liquid storage barrel, the liquid supply assembly 20 switches to other liquid storage barrels 100 on the loading area 151 to continue supplying liquid to the cleaning assembly of the sample analyzer.

In an alternative embodiment, when the detector 31 detects that the liquid storage barrel 100 on the loading area 151 is replaced, the liquid storage barrel 100 on the loading area 151 is changed to a usable state.

Specifically, the optical coupling inductor senses that a user replaces the liquid storage barrel on the loading position, the liquid supply assembly 20 changes the liquid storage barrel on the loading position into an available state, so that when the subsequent liquid supply device supplies liquid to the sample analyzer, the replaced liquid storage barrel can be restarted after the cleaning liquid on other liquid storage barrels is consumed or the liquid storage barrel in the liquid supply state is consumed at present, and the liquid supply device can normally supply liquid to the sample analyzer.

In an alternative embodiment, the liquid supply assembly 20 includes a sensor, and the external liquid supply device sends a warning signal for replacing the liquid storage barrel 100 when the sensor detects that the liquid storage barrel 100 on the loading area 151 is empty of liquid.

Specifically, the sensor includes a bubble detector 26, and when the bubble detector 26 detects that bubbles exist in the liquid supply assembly 20, the external liquid supply device sends a warning signal for replacing the liquid storage barrel 100, so as to ensure that the liquid storage barrel 100 can normally supply liquid to the sample analyzer.

In an alternative embodiment, the number of the liquid storage barrels 100 on the loading area 151 is multiple, and after the external liquid supply device sends a warning signal for replacing the liquid storage barrel 100, the liquid supply assembly 20 switches to other liquid storage barrels on the loading area 151 according to a preset sequence to continue supplying liquid to the cleaning assembly of the sample analyzer, where the preset sequence may sequentially supply liquid to the cleaning assembly of the sample analyzer from the liquid storage barrel on the left side of the loading area 151 to the liquid storage barrel on the right side of the loading area 151, or the preset sequence may sequentially supply liquid to the cleaning assembly of the sample analyzer from the liquid storage barrel on the right side of the loading area 151 to the liquid storage barrel on the left side of the loading area 151, or other sequences may be set by a program built in.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The above disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of the specific examples are described above. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

In the description of the present specification, reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An external liquid supply device for a sample analyzer, comprising:

2. An external liquid supply device for a sample analyzer, comprising:

the rack is provided with a loading area for placing the liquid storage barrel;

3. The liquid supply apparatus as claimed in claim 2, wherein the frame comprises a front plate, a rear plate, a left plate, a right plate, a bottom plate and a connecting plate, the front plate, the rear plate, the left plate, the right plate, the bottom plate and the connecting plate together define a stepped structure having a receiving cavity, the liquid supply assembly and a portion of the control assembly are mounted in the receiving cavity, the connecting plate is connected between two steps, and the loading area is disposed on a step surface of each step.

4. The liquid supply apparatus of claim 3, wherein the liquid supply assembly and the control assembly are spaced a predetermined distance apart.

5. The liquid supply apparatus as claimed in claim 3, wherein the frame further comprises a plurality of spacers for dividing the loading area into a plurality of loading positions.

6. The liquid supply apparatus as claimed in claim 5, wherein the left plate, the right plate and the plurality of spacers are perpendicular to each step surface.

7. The liquid supply device as claimed in claim 4, wherein a rear baffle is arranged on the loading area, the rear baffle is provided with detectors electrically connected with the main control board card assembly, and the number of the detectors is matched with the number of the liquid storage barrels placed on the loading area, so as to sense the placement condition of the liquid storage barrels on the loading area.

8. The liquid supply apparatus as claimed in claim 7, wherein the detector comprises an optical coupling sensor disposed at a lower end of the tailgate.

9. The liquid supply device as claimed in claim 7 or 8, wherein a front baffle and an indicator light electrically connected with the main control board card assembly are arranged on the loading area, and the indicator light is arranged on the front baffle or on the side of the front baffle connected with the connecting plate and used for displaying the use state of the liquid storage barrel placed on the loading area.

10. The liquid supply apparatus as claimed in claim 9, wherein the indicator light is triangular in shape, with a sharp corner of the indicator light pointing towards a reservoir placed on the loading area.

11. The liquid supply apparatus of claim 9, wherein the indicator light has at least three indicating states, the indicating states including an indication that the liquid storage barrel in the loading area is in a liquid supply state, an indication that the liquid storage barrel in the loading area is not connected to the liquid supply line or the liquid in the liquid storage barrel is not enough, and an indication that the liquid in the liquid storage barrel in the loading area is in a normal use state.

12. The liquid supply apparatus of claim 9, wherein the front baffle and the back baffle are perpendicular to each step face.

13. The liquid supply apparatus of claim 9, wherein the height of the left plate and the right plate increases gradually from the front baffle to the back baffle.

14. The liquid supply device as claimed in claim 3, wherein the connecting plate is a concave and upwardly inclined baffle plate structure, and the distance between the connecting plate and the liquid storage barrel on the loading area decreases gradually.

15. The liquid supply device as claimed in claim 3, wherein a quick connector is provided at one end of the liquid supply pipeline for connecting with a liquid storage barrel placed on the loading area.

16. The liquid supply device as claimed in claim 15, wherein the rack is provided with a U-shaped hanging rack, a hanging rack groove is arranged in the middle of the hanging rack, and the width of the hanging rack groove and the width of the U-shaped groove on the hanging rack are both adapted to the width of the quick connector.

17. The liquid supply device of claim 3, wherein the master control board card assembly is disposed on one of the left and right plates, and the control assembly comprises:

18. The liquid supply device as claimed in claim 17, wherein a power baffle is disposed on the power board assembly for preventing liquid on the liquid supply line from splashing onto the power board assembly; and/or a main control baffle plate is arranged on the main control board card assembly and used for preventing liquid on the liquid supply pipeline from splashing on the main control board card assembly.

19. The liquid supply apparatus of claim 17, wherein the power switch, the power input port, and the liquid supply interface are disposed on an outer side of the left or right plate, and the power switch, the power input port, and the liquid supply interface are located on a side of the power board assembly.

20. The liquid supply device of claim 3, wherein the left plate or the right plate is provided with a concave area, and the power switch, the power input port and the liquid supply interface are mounted on the concave area.

21. The liquid supply apparatus of claim 20, wherein a partition is disposed between the power switch, the power input port, and the liquid supply port.

22. The liquid supply apparatus of claim 3, wherein the liquid supply assembly comprises:

23. The liquid supply apparatus of claim 22, wherein the liquid supply assembly further comprises:

24. The liquid supply apparatus as claimed in claim 23, wherein the buffer container is disposed in the accommodating cavity, the liquid supply port is connected to the buffer container, the buffer container is connected to a pressure source via the liquid supply line, and the pressure source is connected to the bubble detector and the liquid supply line of the buffer container for generating a pressure for discharging the liquid from the liquid storage barrel to the buffer container.

25. The liquid supply apparatus as claimed in claim 24, wherein the valve comprises:

26. The liquid supply apparatus as claimed in claim 25, wherein the valve further comprises:

27. The liquid supply device of claim 2, wherein an inverted U-shaped handle is provided above both sides of the frame for pushing the liquid supply device forward or backward.

28. The liquid supply device of claim 2, wherein casters and a foot cup are provided below the frame to facilitate movement or fixation of the liquid supply device.