Reaction cup cleaning needle assembly and reaction cup cleaning device

Abstract

The utility model belongs to the field of medical instrument detection equipment, and provides a reaction cup cleaning needle assembly and a reaction cup cleaning device.The cleaning assembly comprises a cleaning arm and at least two cleaning modules, each cleaning module comprises a liquid injection needle, a water injection needle and a liquid drainage needle, and the same preset distance is arranged between every two adjacent cleaning modules; the liquid injection needles located on the different cleaning modules are used for injecting different cleaning liquids, and a user can select different cleaning liquids according to actual cleaning requirements. The utility model further provides a reaction cup cleaning device which comprises the cleaning assembly, a cleaning liquid barrel, a purified water barrel and a waste liquid barrel, the number of the cleaning liquid barrels is matched with that of the cleaning modules, the plunger pump is arranged between the cleaning liquid barrel and the liquid injection needle, the accurate using amount of the cleaning liquid is further increased, waste of the cleaning liquid is avoided, and the cleaning efficiency is improved. The cleaning cost is further reduced.

Description

Technical Field

[0001] The utility model belongs to the field of medical device detection equipment, and particularly relates to a reaction cup cleaning needle assembly and a reaction cup cleaning device. Background Art

[0002] At present, fully automatic biochemical analyzers and specific protein analyzers are clinical detection devices for samples such as whole blood, serum and plasma, urine, cerebrospinal fluid, and stool lysate. Samples and reagents need to be injected into reaction cups according to specified ratios for reaction and then detected by optical instruments. After complete reaction, the reaction cups need to be cleaned with concentrated cleaning solution before they can be reused. In the actual detection process, since various samples can be detected on the analysis instrument, the pH values of the samples are different. In the prior art, when cleaning the reaction cups, only a single cleaning solution can be dropped. When different samples are detected, it is easy to cause incomplete cleaning of the reaction cups, resulting in residues from the previous round of detection remaining in the reaction cups, thus causing deviations in the detection results. Content of the Utility Model

[0003] The utility model provides a reaction cup cleaning assembly to solve the problem of different cleaning solutions required for stains remaining in reaction cups of different detection samples on the same reaction plate, so as to avoid incomplete cleaning of the reaction cups by a single cleaning solution and deviation of the detection results. Another aspect of the utility model also provides a reaction cup cleaning device.

[0004] To achieve the above object, the utility model adopts the following technical solutions:

[0005] A reaction cup cleaning needle assembly includes:

[0006] A cleaning arm capable of lifting in the vertical direction,

[0007] At least two groups of cleaning modules are all arranged on the cleaning arm. The cleaning module includes an injection needle, a water injection needle, and a drainage needle. Among them, the same preset distance is provided between adjacent two cleaning modules, and the injection needles on different cleaning modules are used for injecting different cleaning solutions.

[0008] In some embodiments, the cleaning module is rotatably arranged relative to the cleaning arm. The cleaning module includes a mounting plate, a sleeve, a first motor, a first driving pulley, a first driven eccentric wheel, a first bearing, a second bearing, and a first transmission belt. The mounting plate is fixedly arranged on the cleaning arm. The first motor is arranged on the mounting plate. The first driving pulley is arranged at the output end of the first motor. The first driven eccentric wheel is rotatably arranged on the mounting plate through the first bearing. The cleaning module is rotatably arranged on the first driven eccentric wheel through the second bearing. The first transmission belt is sleeved on the first driving pulley and the first driven eccentric wheel respectively.

[0009] In some embodiments, the liquid injection needle, the water injection needle, and the liquid discharge needle are distributed in a triangular pattern, and the eccentricity of the first driven eccentric wheel is smaller than the minimum distance between the liquid injection needle, the water injection needle, or the liquid discharge needle and the inner wall of the reaction cup.

[0010] In some embodiments, the first distance between the end of the liquid discharge needle with the liquid outlet and the cleaning arm is not less than the second distance between the end of the liquid injection needle with the liquid outlet and the cleaning arm and the third distance between the end of the water injection needle with the liquid outlet and the cleaning arm.

[0011] In some embodiments, the present utility model further provides a reaction cup cleaning device, including:

[0012] The reaction cup cleaning assembly described in each of the above embodiments;

[0013] At least two cleaning liquid barrels, which are matched with the number of the cleaning modules. Among them, each cleaning liquid barrel contains different cleaning liquids. A first pipeline is arranged between each cleaning liquid barrel and the liquid injection needle of each cleaning module for connection. The number of the first pipelines is matched with the number of the liquid injection needles. The first pipeline is used for the transmission of the cleaning liquid;

[0014] A purified water barrel, which is connected with the water injection needle of each cleaning module through a second pipeline. The number of the second pipelines is matched with the number of the water injection needles. The second pipeline is used for the transmission of purified water;

[0015] A waste liquid barrel, which is connected with the liquid discharge needle of each cleaning module through a third pipeline. The number of the third pipelines is matched with the number of the liquid discharge needles. The third pipeline is used for discharging waste liquid.

[0016] In some embodiments, a plunger pump is arranged on the first pipeline. The plunger pump divides the first pipeline into two sections. The feed port of the plunger pump is connected with the section of the first pipeline close to the cleaning liquid barrel, and the discharge port of the plunger pump is connected with the section of the first pipeline close to the liquid injection needle.

[0017] In some embodiments, check valves are provided at both the inlet and outlet ends of the plunger pump, and the flow direction of the check valve is from the cleaning liquid bucket to the injection needle.

[0018] In some embodiments, a circulating water pump is provided in the purified water bucket. The circulating water pump is provided with a circulating pipeline. The inlet and outlet of the circulating water pump are communicated with the purified water bucket through the circulating pipeline. Wherein, a diverter is provided on the circulating pipeline, and one end of the second pipeline is connected to the diverter.

[0019] In some embodiments, a solenoid valve is provided on the second pipeline. The solenoid valve divides the second pipeline into two sections. The inlet of the solenoid valve is connected to a section of the second pipeline close to the diverter, and the outlet of the solenoid valve is connected to a section of the second pipeline close to the injection needle.

[0020] In some embodiments, one ends of multiple third pipelines meet at one place. A waste liquid pump is arranged at the meeting place of the multiple third pipelines. The inlet of the waste liquid pump is connected to the meeting place of the multiple third pipelines. The outlet of the waste liquid pump is provided with a waste liquid pipe, and one end of the waste liquid pipe is connected to a waste liquid bucket.

[0021] Compared with the prior art, the beneficial effects brought by the present utility model are as follows:

[0022] In this application, at least two sets of cleaning modules are provided, and three three-needle independent structures are arranged on each cleaning module. Users can select different cleaning liquids according to the actual cleaning situation to make the reaction cup cleaning more in place. In addition, the three needles adopt a triangular structure, which can reduce the interference of the cleaning module on the reaction cup. At the same time, a plunger pump is arranged on the reaction cup cleaning device provided in this application, which can accurately control the selection amount of the cleaning liquid. On the one hand, it avoids waste of the cleaning liquid and saves the cleaning cost. On the other hand, users can confirm whether they need the cleaning liquid, or the type selection of the cleaning liquid, or a mixture of multiple cleaning liquids, or only need to rinse with purified water according to their own needs. The control is flexible, the pipelines are separated, and they will not contaminate each other.

[0023] Additional aspects and advantages of this application will be given in part in the following description, and these will become obvious from the following description, or will be understood through the practice of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of a reaction cup cleaning needle assembly of the present invention;

[0025] Figure 2 It is a schematic diagram of the state of a reaction cup cleaning needle assembly of the present invention when entering the reaction cup;

[0026] Figure 3Schematic diagram of the state of a reaction cup cleaning needle assembly of the present invention at the bottom of the reaction cup;

[0027] Figure 4 Schematic diagram of the state of a reaction cup cleaning needle assembly of the present invention when withdrawing from the reaction cup;

[0028] Figure 5 Schematic diagram of the structure of a reaction cup cleaning device of the present invention;

[0029] Figure 6 Cross-sectional view of the first driven eccentric wheel of a reaction cup cleaning device of the present invention.

[0030] Figure 7 Cleaning flow chart of a reaction cup cleaning device of the present invention. Detailed implementation manners

[0031] The following further describes the present application in detail with reference to specific drawings. In the description of this embodiment, unless otherwise specified, the orientation or positional relationship indicated by terms such as "left" and "right" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the present application must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0032] As Figure 1 - Figure 2As shown in the figure, a reaction cup cleaning needle assembly provided by the present invention mainly includes a cleaning arm 7 and at least two groups of cleaning modules 6. Specifically, the cleaning arm 7 can be lifted and lowered in the vertical direction. The cleaning arm 7 is lifted and lowered by connecting with a lifting mechanism. The lifting mechanism can be a common screw slider limit groove structure or directly use the push rod of a linear cylinder for lifting. The cleaning module 6 includes a liquid injection needle 6-3, a water injection needle 6-2, and a liquid discharge needle 6-1. Among them, the liquid injection needle 6-3 is used for the transmission of the cleaning liquid, the water injection needle 6-2 is used for the transmission of purified water, and the liquid discharge needle 6-1 is used for discharging the waste liquid in the reaction cup 8. In this embodiment, the liquid injection needle 6-3, the water injection needle 6-2, and the liquid discharge needle 6-1 are all arranged on the sleeve 6-4 by means of welding and fixing. An installation plate 6-5 is fixedly connected to the lifting arm 7. An installation hole adapted to the sleeve 6-4 is provided on the installation plate 6-5. The sleeve 6-4 is rotatably arranged on the installation plate 6-5. It should be noted that the structure of each group of cleaning modules 6 is the same and is fixed on the cleaning arm 7 through the structure of the installation plate 6-5 and the sleeve 6-4. At the same time, the lifting actions of each group of cleaning modules 6 are synchronized. In this embodiment, as a preferred embodiment, there are two groups of cleaning modules 6. Optionally, the cleaning module 6 can also be 3 groups or 4 groups. Among them, different cleaning liquids are conveyed to the liquid injection needles 6-3 of each group of cleaning modules 6. According to the actual cleaning requirements, the cleaning liquid can be selected. At the same time, the same preset distance is provided between two adjacent cleaning modules 6. During actual operation, the reaction cup 8 is arranged on the annular turntable bracket. The reaction cup 8 is driven to rotate by rotating the turntable bracket, and the reaction cup 8 is arranged on the turntable bracket in a uniformly distributed manner. By providing the same preset distance between two adjacent cleaning modules 6, when the turntable bracket rotates, there is no need to position between the cleaning module 6 and the reaction cup 8. When it is an annular turntable bracket, as the best implementation method, the radian occupied by the cleaning module 6 centered on the rotation center of the turntable bracket should be an integer multiple of the radian rotated by the turntable bracket each time. When the turntable bracket is a linear closed ring structure, the distance between two adjacent cleaning modules 6 should be an integer multiple of the distance between two adjacent reaction cups 8.

[0033] In this application, by setting multiple groups of cleaning modules 6 with the same structure and conveying different cleaning liquids to the liquid injection needles 6-3 of each cleaning module 6, when cleaning the reaction cup 8, different concentrated cleaning liquids can be automatically selected according to the acidity and alkalinity of the reactants and the characteristics of the cleaning difficulty of specific detection items, making the cleaning of the reaction cup 8 more thorough and avoiding experimental result deviations caused by incomplete cleaning of the reaction cup 8. At the same time, by rotatably arranging the cleaning module 6 relative to the cleaning arm 7, driving the liquid injection needle 6-3, the water injection needle 6-2, and the liquid discharge needle 6-1 to move relative to the reaction cup 8, the cleaning liquid and purified water in the reaction cup 8 can be stirred to make them mixed evenly, achieving a better soaking and cleaning effect.

[0034] In one embodiment, to facilitate the control of the rotation of the cleaning module 6, an installation plate 6-5 is further included and is disposed on the cleaning arm 7. A rotation assembly for rotating the cleaning module 6 is disposed on the installation plate 6-5. The rotation assembly includes a first motor 6-8, a first driving wheel 6-6, a first driven eccentric wheel 6-7, a first bearing 6-9, a second bearing 6-11, and a first transmission belt 6-10. The installation plate 6-5 is fixedly disposed on the cleaning arm 7. The first driving wheel 6-6 is disposed at the output end of the first motor 6-8. The first driven eccentric wheel 6-7 is rotatably disposed on the installation plate 6-5 through the first bearing 6-9. The cleaning module 6 is rotatably disposed on the first driven eccentric wheel 6-7 through the second bearing 6-11. The first transmission belt 6-10 is sleeved on the groove of the first driving wheel 6-6 and the groove of the first driven eccentric wheel 6-7 respectively. The first motor 6-8 drives the first driving wheel 6-6 to rotate. The first driving wheel 6-6 drives the first driven eccentric wheel 6-7 to rotate through the first transmission belt 6-10. Since a second bearing 6-11 is disposed between the first driven eccentric wheel 6-7 and the sleeve 6-4 and the sleeve is disposed relative to the first driven eccentric wheel 6-7, when the first driven eccentric wheel 6-7 rotates, the sleeve 6-4 will not rotate therewith and only swings within the swing range of the eccentricity of the first driven eccentric wheel 6-7, thereby realizing the stirring and mixing of the cleaning liquid and the purified water, making the cleaning and soaking of the reaction cup 8 more thorough, and preventing the first pipe, the second pipe, and the third pipe from being entangled. In this embodiment, there are two cleaning modules 6, and the corresponding number of rotation assemblies is two. It can be known that the number of rotation assemblies matches the number of cleaning modules.

[0035] In one embodiment, since the entire reaction cup 8 device is relatively small, to make the space more compact, the liquid injection needle 6-3, the water injection needle 6-2, and the liquid discharge needle 6-1 are arranged in a triangular pattern. Generally, the reaction cup 8 has a cylindrical structure or a rectangular cup. To facilitate the reasonable arrangement of the liquid injection needle 6-3, the water injection needle 6-2, and the liquid discharge needle 6-1 within a limited space, the three are arranged in a triangular pattern, reducing the range occupied by the three and reducing the space interference of the three on the reaction cup 8, so as to meet the requirement of extending into the reaction cup 8 when the cup mouth 8-1 of the reaction cup 8 is relatively small, enabling more reaction cups 8 to be placed on the turntable bracket. At the same time, to meet the swing of the cleaning module 6, the minimum distance from the liquid injection needle 6-3, the water injection needle 6-2, and the liquid discharge needle 6-1 to the wall of the reaction cup 8 should be greater than the eccentricity of the first driven eccentric wheel 6-7 to prevent the liquid injection needle 6-3, the water injection needle 6-2, and the liquid discharge needle 6-1 from touching the wall of the reaction cup 8 when the cleaning module 6 swings, causing damage to the equipment.

[0036] In one embodiment, to ensure that the waste liquid after cleaning can be completely discharged, the first distance between the end of the liquid discharge needle 6-1 where the liquid outlet is provided and the cleaning arm 7 is not less than the second distance between the end of the liquid injection needle 6-3 where the liquid outlet is provided and the cleaning arm 7. At the same time, the first distance between the end of the liquid discharge needle 6-1 where the liquid outlet is provided and the cleaning arm 7 should also be not less than the third distance between the end of the water injection needle 6-2 where the liquid outlet is provided and the cleaning arm 7. Specifically, in this embodiment, as the optimal implementation method, the liquid outlets of the water injection needle 6-2 and the liquid injection needle 6-3 are flush, and the liquid outlet of the liquid discharge needle 6-1 protrudes a part relative to the water injection needle 6-2 and the liquid injection needle 6-3, that is, the liquid outlet of the liquid discharge needle 6-1 will reach the bottom 8-2 of the cup first, and the liquid discharge needle 6-1 can completely discharge the waste liquid after cleaning. At this time, both the water injection needle 6-2 and the liquid injection needle 6-3 are at a certain distance from the bottom 8-2 of the reaction cup 8, so that the liquid injection needle 6-3 and the water injection needle 6-2 can also be avoided from being contaminated by the waste liquid. Optionally, the liquid outlets of the liquid injection needle 6-3, the water injection needle 6-2 and the liquid discharge needle 6-1 can also be set to a flush structure, and the waste liquid can also be completely discharged.

[0037] In one embodiment, as Figure 3 shown, the present invention also provides a reaction cup cleaning device, which mainly includes the cleaning components in the above various embodiments, at least two cleaning liquid barrels, a purified water barrel 1 and a waste liquid barrel 16.

[0038] Specifically, the number of cleaning liquid barrels matches the number of cleaning modules. In this embodiment, there are a first cleaning liquid barrel 11 and a second cleaning liquid barrel 12. Different cleaning liquids are contained in each cleaning liquid barrel. A first pipeline is provided between each cleaning liquid barrel and the liquid injection needle 6-3 of each cleaning module 6 for connection. Each first pipeline is independent, that is, the number of first pipelines matches the number of liquid injection needles 6-3. The first pipeline is used to transport the cleaning liquid to the corresponding liquid injection needle 6-3 and drip it into the reaction cup 8. In this embodiment, the cleaning liquid can be pumped and transported by setting a pump body on the first pipeline. The feed port of the pump body is connected to the first pipeline near the cleaning liquid barrel end, and the discharge port of the pump body is connected to the first pipeline near the liquid injection needle 6-3 end. In this embodiment, the cleaning liquid barrels are independently arranged. Optionally, the cleaning liquid barrels can also be integrally arranged, that is, multiple relatively independent cavities are arranged in the cleaning liquid barrel for loading and taking different cleaning liquids.

[0039] The purified water barrel 1 contains purified water. A second pipeline is provided between the purified water barrel 1 and the water injection needles 6-2 of multiple cleaning modules 6 for connection. The second pipeline matches the number of water injection needles 6-2. By setting the second pipeline, the purified water is transported from the purified water barrel 1 to the water injection needle 6-2, which is used to dilute the cleaning liquid or flush the reaction cup 8 with purified water alone.

[0040] The waste liquid bucket 16 is used to collect the waste liquid after the reaction cup 8 is washed. A third pipeline is provided between the waste liquid bucket 16 and the drain needle 6-1 of each cleaning module 6 for connection. The number of the third pipelines matches the number of the drain needles 6-1. In this embodiment, there are two drain needles 6-1, that is, two third pipelines. The third pipeline is used to transfer the waste liquid in the reaction cup 8 to the waste liquid bucket 16 through the third pipeline. In this embodiment, it can be discharged by setting a waste liquid pump 14. It can be known that the transmission principles of the cleaning liquid, purified water and waste liquid are the same, and they are all transmitted through the pump body. Similar to the aforementioned cleaning liquid transmission structure, it will not be elaborated here.

[0041] In this application, according to the actual situation, it can be set whether to use the concentrated cleaning liquid, that is, only inject purified water or different concentrated cleaning liquids, or a mixed liquid can also be injected. It can be flexibly controlled, and the pipelines are separated and will not contaminate each other.

[0042] In one embodiment, in order to accurately control the amount of the cleaning liquid, a plunger pump is provided on the first pipeline. The plunger pump is an existing product, and its structure will not be elaborated. In this embodiment, there are two plunger pumps, namely the first plunger pump 10-1 and the second plunger pump 10-2, which are respectively arranged on different second pipelines. Specifically, the plunger pump divides the first pipeline into two parts. The inlet of the plunger pump is connected to the first pipeline close to the cleaning liquid bucket, and the outlet of the plunger pump is connected to the first pipeline close to the injection needle. In this embodiment, the first cleaning liquid bucket 11 corresponds to the first plunger pump 10-1, and the second cleaning liquid bucket 12 corresponds to the second plunger pump 10-2. By providing a plunger pump on the first pipeline, the amount of the cleaning liquid can be accurately controlled, and the waste of the cleaning liquid can be avoided. It should be noted that the plunger pump is an existing technology and will not be elaborated.

[0043] Furthermore, in order to better control the delivery of the cleaning liquid, check valves 13 are provided at both the inlet and outlet ends of the plunger pump. By providing the check valves 13, the cleaning liquid can only flow from the cleaning liquid bucket to the injection needle 6-3, avoiding the backflow of the cleaning liquid and resulting in inaccurate control of the amount of the cleaning liquid. Specifically, the check valves 13 are arranged on the first pipeline on the inlet and outlet sides of the plunger pump.

[0044] In one embodiment, the purified water bucket 1 is provided with a circulating water pump 2. The circulating water pump 2 is provided with a circulating pipeline 4. Among them, the inlet and outlet of the circulating water pump 2 are connected to the purified water bucket 1 through the circulating pipeline 4. A diverter 3 is provided on the circulating pipeline 4. One end of the second pipeline is connected to the diverter 3 and communicated with the circulating pipeline 4 through the diverter 3. The circulating water pump 2 makes the circulating pipeline 4 always filled with purified water. The purified water is transmitted to the second pipeline through the diverter 3 and then transmitted to the injection needle 6-2 through the second pipeline. In this embodiment, there are two second pipelines, which match the number of the cleaning modules 6. Optionally, the number of the second pipelines can be set according to actual needs. For example, 3, 4, etc.

[0045] Further, to facilitate the output control of purified water, a solenoid valve 5 is provided on the second pipeline. Specifically, the solenoid valve 5 divides the second pipeline into two sections. The inlet of the solenoid valve 5 is connected to one end of the second pipeline close to the separator 3, and the outlet of the solenoid valve 5 is connected to one end of the second pipeline close to the injection needle 6-2. By setting the solenoid valve 5, it is possible to facilitate the automatic control of the transmission of purified water, making the operation process more convenient, and the water outlet time node can be controlled in real time.

[0046] In one embodiment, multiple third pipelines converge at one place. A waste liquid pump 14 is provided at one end of the convergence. The inlet of the waste liquid pump 14 is connected to one end of the convergence of the multiple third pipelines. The outlet of the waste liquid pump 14 is communicated with a waste liquid bucket 16 through a waste liquid pipe 15 provided, realizing the transmission of waste liquid.

[0047] In one embodiment, as Figure 4 shown, the present invention also provides a cleaning process of a reaction cup cleaning device. In this embodiment, taking two cleaning liquids as an example, the specific process is as follows:

[0048] When it is necessary to clean with two cleaning liquids, the cleaning arm 7 moves downward, and at the same time, the waste liquid pump 14 is turned on. The waste liquid pump 14 pumps the waste liquid in the reaction cup 8. The first plunger pump 10-1 and the second plunger pump 10-2 on the two first pipelines respectively suck a fixed amount of the first cleaning liquid and the second cleaning liquid. After the drainage needle 6-1 reaches the bottom 8-1 of the reaction cup 8, the waste liquid pump 14 is turned off, and the solenoid valves 5 on the two second pipelines and the first plunger pump 10-1 and the second plunger pump 10-2 on the two first pipelines are turned on, injecting purified water, the first cleaning liquid, and the second cleaning liquid into the reaction cup 8. Specifically, the first cleaning liquid and purified water are injected into the first reaction cup 8, and the second cleaning liquid and purified water are injected into the second reaction cup 8. The first reaction cup 8 and the second reaction cup 8 are soaked with the diluted first cleaning liquid and the second cleaning liquid. The cleaning arm 7 moves upward. When the injection needle 6-2 reaches the cup mouth 8-1 of the reaction cup 8, at this time, the solenoid valves 5 on the two second pipelines and the first plunger pump 10-1 and the second plunger pump 10-2 on the two first pipelines are closed, and the reaction cup holder (here is a turntable structure) is rotated, repeating the above actions. After all the reaction cups 8 are cleaned once with the first cleaning liquid and the second cleaning liquid, the first plunger pump 10-1 and the second plunger pump 10-2 are turned off, the solenoid valve 5 and the waste liquid pump 14 are turned on, and all the reaction cups 8 are cleaned again with purified water to make all the reaction cups 8 cleaner. After completing the above actions, then the circulating water pump 2 is turned off.

[0049] When only one of the cleaning liquids needs to be used for cleaning, the first plunger pump 10-1 is turned on and the second plunger pump 10-2 is turned off, or the second plunger pump 10-2 is turned on and the first plunger pump 10-1 is turned off, and the other processes remain unchanged.

[0050] When only purified water cleaning is required, only the first plunger pump 10-1 and the second plunger pump 10-2 on the two first pipelines need to be closed, and other processes remain unchanged.

[0051] The cleaning liquid in the above embodiments is an acidic cleaning liquid, an alkaline cleaning liquid or a neutral cleaning liquid.

[0052] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made. These improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A reaction cup cleaning needle assembly, characterized in that: include: The cleaning arm can be raised and lowered vertically. At least two groups of cleaning modules are arranged on the cleaning arm, and the cleaning modules include injection needles, water injection needles and drainage needles, wherein the same preset spacing is set between two adjacent cleaning modules, and the injection needles located on different cleaning modules are used for injecting different cleaning liquids.

2. A reaction cup cleaning needle assembly according to claim 1, characterized in that: The cleaning module is rotatably arranged relative to the cleaning arm, and the cleaning module includes a mounting plate, a sleeve, a first motor, a first driving wheel, a first driven eccentric wheel, a first bearing, a second bearing and a first transmission belt. The mounting plate is fixedly arranged on the cleaning arm, the first motor is arranged on the mounting plate, the first driving wheel is arranged at the output end of the first motor, the first driven eccentric wheel is rotatably arranged on the mounting plate through a first bearing, the cleaning module is rotatably arranged on the first driven eccentric wheel through the second bearing, and the first transmission belt is respectively sleeved on the first driving wheel and the first driven eccentric wheel.

3. A reaction cup cleaning needle assembly according to claim 2, characterized in that: The injection needle, the water injection needle and the drainage needle are distributed in a herringbone shape, and the eccentricity of the first driven eccentric wheel is smaller than the minimum distance between the injection needle, the water injection needle or the drainage needle and the inner wall of the reaction cup.

4. The reaction cup cleaning needle assembly according to claim 1, characterized in that: The first distance between the end of the discharge needle with the liquid outlet and the cleaning arm is not less than the second distance between the end of the injection needle with the liquid outlet and the cleaning arm and the third distance between the end of the injection needle with the liquid outlet and the cleaning arm.

5. A reaction cup cleaning device, characterized in that: include: The reaction cup cleaning component according to any one of claims 1 to 4; At least two cleaning liquid barrels, which match the number of the cleaning modules, wherein each cleaning liquid barrel contains different cleaning liquids, and a first pipeline is arranged between each cleaning liquid barrel and the injection needle of each cleaning module for communication, the number of the first pipelines matches the number of the injection needles, and the first pipeline is used for the transmission of the cleaning liquid; A purified water bucket is connected to the water injection needle of each cleaning module by a second pipe, the number of the second pipes matches the number of the water injection needles, and the second pipes are used for the transmission of purified water; A third pipe is arranged between the waste liquid bucket and the drainage needle of each cleaning module for communication. The number of the third pipes matches the number of the drainage needles. The third pipes are used for waste liquid discharge.

6. A reaction cup cleaning device according to claim 5, characterized in that: A plunger pump is provided on the first pipeline, and the plunger pump divides the first pipeline into two sections. The feed port of the plunger pump is connected to a section of the first pipeline close to the cleaning liquid barrel, and the discharge port of the plunger pump is connected to a section of the first pipeline close to the injection needle.

7. A reaction cup cleaning device according to claim 6, characterized in that: The feed port and the discharge port of the plunger pump are both provided with a one-way valve, and the flow direction of the one-way valve is from the cleaning liquid barrel to the injection needle.

8. The reaction cup cleaning device according to claim 5, characterized in that: The purified water barrel is provided with a circulating water pump, and the circulating water pump is provided with a circulating pipe. The water inlet and the water outlet of the circulating water pump are connected with the purified water barrel through the circulating pipe, wherein a diverter is provided on the circulating pipe, and one end of the second pipe is connected to the diverter.

9. The reaction cup cleaning device according to claim 8, characterized in that: The second pipeline is provided with a solenoid valve, which divides the second pipeline into two sections. The inlet of the solenoid valve is connected to a section of the second pipeline close to the diverter, and the outlet of the solenoid valve is connected to a section of the second pipeline close to the water injection needle.

10. The reaction cup cleaning device according to claim 5, characterized in that: One ends of the multiple third pipes intersect at one point, and a waste liquid pump is arranged at the intersection of the multiple third pipes. The water inlet of the waste liquid pump is connected to the intersection of the multiple third pipes, and the water outlet of the waste liquid pump is provided with a waste liquid pipe, and one end of the waste liquid pipe is connected to a waste liquid barrel.

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