CN220901302U

CN220901302U - High-speed biochemical analyzer and cleaning station thereof

Info

Publication number: CN220901302U
Application number: CN202322210099.5U
Authority: CN
Inventors: 潘洋; 赵鹏; 杨超群; 王超; 刘聪
Original assignee: Autobio Labtec Instruments Zhengzhou Co Ltd
Current assignee: Autobio Labtec Instruments Zhengzhou Co Ltd
Priority date: 2023-08-16
Filing date: 2023-08-16
Publication date: 2024-05-07
Anticipated expiration: 2033-08-16

Abstract

The utility model discloses a cleaning station of a high-speed biochemical analyzer, which comprises a cleaning main body and a water removing device; the cleaning main body is internally provided with a cleaning tank, and is provided with an inlet and an outlet and a cleaning hole which are respectively communicated with the cleaning tank; the inlet and outlet are used for allowing a sample needle moving along a preset track to enter and exit the cleaning tank; the cleaning hole is used for externally connecting a water source and conveying the water source to a sample needle in the cleaning tank for external cleaning; the water removing device is arranged on the cleaning main body and is used for removing hanging liquid on the outer wall of the sample needle after cleaning. The cleaning station of the high-speed biochemical analyzer is provided with the water removal device, so that moisture on the outer wall of the sample needle after cleaning can be removed, liquid hanging is avoided when the sample needle leaves the cleaning station, the sample is prevented from being diluted by the liquid hanging, the accuracy of a test result is poor, and the test precision is prevented from being poor due to the fact that the repeatability of the analysis result of the sample is randomly influenced by the liquid hanging amount. The utility model also discloses a high-speed biochemical analyzer applying the cleaning station, and the accuracy and stability of the test result are higher.

Description

High-speed biochemical analyzer and cleaning station thereof

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a cleaning station of a high-speed biochemical analyzer, and also relates to the high-speed biochemical analyzer.

Background

The accuracy and stability of the test results of the high-speed biochemical analyzer are important metrics. The sample needle of the high-speed biochemical analyzer is a carrying source causing pollution, and the cleaning effect of the sample needle directly influences the test result of the high-speed biochemical analyzer, so that the cleaning station of the sample needle is an important part of the biochemical analyzer.

At present, the structures of cleaning stations used in high-speed biochemical analyzers on the market are different, but the common problem is that the outer wall of a sample needle is hung with liquid after the cleaning stations clean. The outer wall hanging liquid of the sample needle can dilute the sample, especially when the sample is added in a small volume, the accuracy of the test result is greatly influenced, and meanwhile, the randomness of the hanging liquid amount can also influence the repeatability of the sample analysis result, so that the test accuracy is influenced.

Therefore, how to provide a cleaning station capable of avoiding hanging liquid on a sample needle is a problem to be solved by those skilled in the art.

Disclosure of utility model

In view of the above, the present utility model provides a cleaning station for a high-speed biochemical analyzer, which is provided with a water removal device, and is capable of removing water from the outer wall of a sample needle after cleaning, avoiding hanging liquid when the sample needle leaves the cleaning station, preventing the hanging liquid from diluting a sample to cause poor accuracy of a test result, and preventing the hanging liquid from randomly affecting the repeatability of the analysis result of the sample to cause poor test accuracy. The utility model also provides a high-speed biochemical analyzer applying the cleaning station, and the accuracy and stability of the test result are higher.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a cleaning station for a high-speed biochemical analyzer, comprising:

the cleaning device comprises a cleaning main body, a cleaning device and a cleaning device, wherein a cleaning tank is arranged in the cleaning main body, and the cleaning main body is provided with an inlet and an outlet and a cleaning hole which are respectively communicated with the cleaning tank; the inlet and outlet are used for allowing a sample needle moving along a preset track to enter and exit the cleaning tank; the cleaning hole is used for externally connecting a water source and conveying the water source to a sample needle in the cleaning tank for external cleaning;

and the water removing device is arranged on the cleaning main body and is used for removing hanging liquid on the outer wall of the sample needle after cleaning.

Optionally, in the above cleaning station, the water removing device is a scraper, and the scraper is installed in the cleaning tank and located between the cleaning hole and the inlet and outlet, and is used for scraping hanging liquid on the outer wall of the sample needle; the scraping plate has a first preset included angle with the vertical direction, and the upper end to the lower end of the scraping plate is gradually far away from the cleaning hole; or the water removing device is an air injection joint and is used for being externally connected with a high-pressure air source.

Optionally, in the cleaning station, the plurality of scrapers are arranged in groups; the number of the scrapers in each group is 2, and the scrapers are distributed on two opposite sides in the cleaning tank; in each group of scrapers, gaps are respectively arranged at the upper parts of the free ends of the two scrapers, and the lower parts of the free ends of the two scrapers are mutually overlapped.

Optionally, in the above cleaning station, a cleaning hole is formed in an inner wall of the cleaning main body, and the scraper is installed in the cleaning hole; the cleaning hole is used for externally connecting a water source to flush the scraping plate; the scraping plate is positioned in the middle of the cleaning hole, and divides the opening of the cleaning hole into two parts, and the water discharged from the two parts is respectively used for flushing the two sides of the scraping plate.

Optionally, in the above cleaning station, the number of the inlet and the outlet is two, and the inlet and the outlet are distributed on two sides of the cleaning hole; the water removing device is positioned between the cleaning hole and the first inlet and outlet.

Optionally, in the above cleaning station, the axis of the cleaning hole has a second preset included angle with the horizontal direction, and the second preset included angle is 0 °; or alternatively

The second preset included angle is an acute angle, and the cleaning hole is gradually downwards from the outside of the cleaning main body to the inside of the cleaning main body.

Optionally, in the above cleaning station, the cleaning hole is a waist hole extending vertically; and/or the number of the cleaning holes is two, and the cleaning holes are distributed on two sides of the cleaning tank.

Optionally, in the cleaning station, the cleaning tank includes a first splash tank section, a needle cleaning tank section and a second splash tank section which are sequentially communicated; the cleaning hole is positioned on the inner wall of the needle washing groove section;

the bottom surface of the cleaning tank is inclined and gradually downward along the position from the periphery to the center; the lowest part of the bottom surface is provided with a liquid outlet.

Optionally, in the above cleaning station, the inlet and outlet are offset at an end of the cleaning main body; the inlet and outlet and the scraping plate are respectively positioned on the preset track.

A high-speed biochemical analyzer comprising a cleaning station, wherein the cleaning station is any one of the cleaning stations in the technical scheme; the sample needle of the high-speed biochemical analyzer moves along a preset track between a sampling position and a sample adding position; the cleaning station is arranged on the preset track and is positioned between the sampling position and the sample adding position; in the cleaning station, the water removing device is positioned on one side of the cleaning hole facing the sampling position.

The utility model provides a cleaning station of a high-speed biochemical analyzer, which comprises a cleaning main body and a water removing device; the cleaning main body is internally provided with a cleaning tank, and is provided with an inlet and an outlet and a cleaning hole which are respectively communicated with the cleaning tank; the inlet and outlet are used for allowing a sample needle moving along a preset track to enter and exit the cleaning tank; the cleaning hole is used for externally connecting a water source and conveying the water source to a sample needle in the cleaning tank for external cleaning; the water removing device is arranged on the cleaning main body and is used for removing hanging liquid on the outer wall of the sample needle after cleaning.

When the cleaning station provided by the utility model is applied, a sample needle moving along a preset track enters the cleaning tank through the inlet and the outlet and reaches the position corresponding to the cleaning hole; the cleaning hole inputs an external water source into the cleaning tank and washes the outer wall of the sample needle; then, the cleaned sample needle continuously moves along a preset track and passes through a water removing device, and the water removing device removes hanging liquid on the outer wall of the sample needle; and then the sample needle continues to move along the preset track and leaves the washing tank through the inlet and the outlet.

The cleaning station of the high-speed biochemical analyzer is provided with the water removing device, so that hanging liquid on the outer wall of the sample needle after cleaning can be removed, hanging liquid is prevented from being hung when the sample needle leaves the cleaning station, the sample is prevented from being diluted by the hanging liquid, the accuracy of a test result is poor, and the repeatability of the analysis result of the sample is prevented from being affected randomly by the hanging liquid, so that the test precision is poor.

The utility model also provides a high-speed biochemical analyzer, which is applied to the cleaning station, and the accuracy and stability of test results are higher.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a first cleaning station according to an embodiment of the present utility model;

FIG. 2 is a top view of a first cleaning station according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view showing a cleaning aperture in a first cleaning station provided in accordance with an embodiment of the present utility model;

FIG. 4 is a cross-sectional view of a display screed in a first cleaning station provided by an embodiment of the present utility model;

Fig. 5 is a cross-sectional view showing a cleaning tank in a first cleaning station according to an embodiment of the present utility model;

fig. 6 is a schematic perspective view of a scraper according to an embodiment of the present utility model;

FIG. 7 is a schematic view of another perspective view of a screed according to an embodiment of the present utility model;

FIG. 8 is a schematic diagram of a first cleaning station applied to a high-speed biochemical analyzer according to an embodiment of the present utility model;

FIG. 9 is a schematic diagram of a sample needle according to an embodiment of the present utility model entering a first cleaning station when moving from a sample loading position to a sampling position along a predetermined trajectory;

FIG. 10 is a schematic diagram of a sample needle according to an embodiment of the present utility model entering a first cleaning station when moving from a sampling position to a loading position along a predetermined trajectory;

FIG. 11 is a schematic perspective view of a second cleaning station according to an embodiment of the present utility model;

Fig. 12 is a schematic perspective view of a third cleaning station according to an embodiment of the present utility model;

Wherein, in fig. 1-12:

A cleaning station 100; a cleaning main body 101; an inlet/outlet 11; a cleaning tank 12; a first splash groove segment 121; a needle wash basin section 122; a second splash groove segment 123; a bottom surface 1201; cleaning the hole 1202; an outer cleaning joint 102; the squeegee flushes the joint 103; a scraper 104; a drain joint 105; a mounting ring 106; jet connection 107; sample needle 200.

Detailed Description

The embodiment of the utility model discloses a cleaning station of a high-speed biochemical analyzer, which is provided with a water removing device, and can remove water on the outer wall of a cleaned sample needle, prevent hanging liquid when the sample needle leaves the cleaning station, prevent the hanging liquid from diluting a sample to cause poor accuracy of a test result, and prevent the hanging liquid from randomly affecting the repeatability of the analysis result of the sample to cause poor test accuracy. The embodiment of the utility model also discloses a high-speed biochemical analyzer applying the cleaning station, and the accuracy and stability of the test result are higher.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-12, an embodiment of the present utility model provides a cleaning station 100 for a high-speed biochemical analyzer, which includes a cleaning main body 101 and a water removing device; the cleaning main body 101 is internally provided with a cleaning tank 12, and the cleaning main body 101 is provided with an inlet and outlet 11 and a cleaning hole 1202 which are respectively communicated with the cleaning tank 12; the inlet and outlet 11 is used for allowing the sample needle 200 moving along a preset track to enter and exit the washing tank 12; the cleaning hole 1202 is used for externally connecting a water source and conveying the water source to the sample needle 200 in the cleaning tank 12 for external cleaning; the water removing device is installed on the cleaning main body 101 and is used for removing hanging liquid on the outer wall of the cleaned sample needle 200.

When the cleaning station 100 provided by the utility model is applied, the sample needle 200 moving along the preset track enters the cleaning tank 12 through the inlet and outlet 11 and reaches the position corresponding to the cleaning hole 1202; the cleaning hole 1202 inputs an external water source into the cleaning tank 12 and washes the outer wall of the sample needle 200; then, the cleaned sample needle 200 continues to move along a preset track and passes through a water removing device, and the water removing device removes hanging liquid on the outer wall of the sample needle 200; the sample needle 200 then continues to follow the predetermined trajectory and exits the wash bowl 12 through the access port 11.

The cleaning station 100 of the high-speed biochemical analyzer is provided with the water removal device, so that the water on the outer wall of the cleaned sample needle 200 can be removed, the sample needle 200 is prevented from being hung with liquid when leaving the cleaning station 100, the sample is prevented from being diluted by the hung liquid, the accuracy of a test result is prevented from being poor, and the repeatability of the analysis result of the sample is prevented from being influenced randomly by the hung liquid, so that the test precision is prevented from being poor.

In some embodiments, the water removal device is configured as a scraper 104, the scraper 104 being mounted within the wash bowl 12 between the wash port 1202 and the access port 11 for scraping off hanging liquid from the outer wall of the sample needle 200, as shown in fig. 1, 2, 4-11.

In other embodiments, the water removal device is configured as a jet connection 107 for external connection to a high pressure gas source. When the high-pressure gas supply device is applied, high-pressure gas provided by a high-pressure gas source is sprayed into the cleaning tank 12 through the gas spraying joint 107; when the cleaned sample needle 200 moves to a position corresponding to the air injection joint 107 along a preset track, the hanging liquid on the outer wall of the sample needle 200 is blown off by high-pressure air flow, so that the effect of removing the moisture on the outer wall of the sample needle 200 is achieved.

In the case where the water removal means is provided as the air injection joint 107, the air injection joint 107 is provided as one or as a plurality. In order to avoid the air flows ejected from the plurality of air-jet connectors 107 from interfering with each other, each air-jet connector 107 is provided so as to be arranged on the same side of the cleaning tank 12.

In the case where the water removal device is provided as the scraper 104, the scraper 104 is preferably provided to have a first predetermined angle with respect to the vertical direction, and the upper end to the lower end of the scraper 104 is gradually distant from the cleaning hole 1202, as shown in fig. 5, 9, 10, 11.

Further, the number of the scrapers 104 is plural, and the scrapers are arranged in groups; the number of squeegees 104 in each set is 2 and both are distributed on opposite sides within the cleaning tank 12. In each set of scrapers 104, the upper middle part of the free ends of the two scrapers 104 are respectively provided with a notch, and the lower parts are mutually overlapped, as shown in fig. 1. The end of the scraper 104 connected to the cleaning body 104 is a mounting end, and the end opposite to the mounting end is a free end.

In the cleaning station 100 provided in this embodiment, the scraping plates 104 form a first preset included angle with the vertical direction, and the upper openings and the lower portions of the free ends of the two scraping plates 104 in groups overlap, which is favorable for scraping off the liquid at the needle point in the sample needle 200, improving the scraping and liquid hanging effect, and simultaneously being favorable for protecting the needle point from being damaged.

The inner wall of the cleaning main body 101 is provided with a cleaning hole in which the scraper 104 is arranged; the cleaning holes are used to connect to a water source to flush the blade 104. In application, if the sample needle 200 leaves the cleaning station 100 after scraping off the hanging liquid by the scraper 104, the water source enters the cleaning tank 12 through the cleaning hole and washes the scraper 104, which is beneficial to avoiding poor pollution.

To enhance the cleaning effect of the blade 104, the blade 104 is disposed in the middle of the cleaning hole and divides the opening of the cleaning hole into two parts (specifically, two semicircular parts). In use, water flows out through the two portions of the cleaning aperture opening and washes both sides of the squeegee 104.

The blade 104 may be made of a silicone material. For ease of installation, the scraper 104 may be configured to be secured to the mounting ring 106, with the mounting ring 106 snapped into the angled hole.

The number of the inlets and outlets 11 of the cleaning main body 101 is two, and the inlets and outlets 11 are distributed on both sides of the cleaning hole 1202. The water removal device is located between the wash port 1202 and the first port. The first inlet and outlet are positioned on one side of the cleaning hole 1202 facing the sampling position, so that the sample needle 200 is sequentially cleaned before sampling, and hanging liquid on the outer wall of the sample needle 200 is removed.

The cleaning body 102 is mounted with an external cleaning fitting 102 in communication with the cleaning aperture 1202, the external cleaning fitting 102 for externally connecting to a water source. The cleaning main body 102 is also provided with a scraper flushing joint 103 communicated with the cleaning hole, and the scraper flushing joint 103 is used for externally connecting a water source.

In the cleaning station 100, the axis of the cleaning hole 1202 has a second predetermined angle with respect to the horizontal direction. The second predetermined angle may be set to 0 deg., as shown in fig. 11, when the water source is directed to flush the sample needle 200.

The second predetermined included angle may also be set to an acute angle, and the cleaning hole 1202 gradually goes downward from the outside of the cleaning body 101 to the inside of the cleaning body 101. In the solution provided in this embodiment, the water flow flowing through the cleaning hole 1202 is in a state of obliquely downward, so that the downward flushing speed is improved, which is beneficial to improving the cleaning effect of the outer wall of the sample needle 200; at the same time, after the external cleaning is finished, the liquid stuck to the outer wall of the sample needle 200 can also get a downward speed, and the needle tip is highly likely to drop off and drop to the bottom of the cleaning tank 12.

The cleaning hole 1202 may be configured as a circular hole, preferably as a waist hole extending vertically, so as to lengthen the water outlet length, increase the contact length between the water column and the sample needle 200, and lengthen the cleaning range of the sample needle.

The number of the cleaning holes 1202 is two, and the cleaning holes are distributed on two sides of the cleaning tank 12, so that the sample needles 200 can be cleaned from two sides at the same time, thereby improving the cleaning effect.

The cleaning tank 12 may be configured to include a first splash tank segment 121, a needle cleaning tank segment 122, and a second splash tank segment 123 that are sequentially communicated; the wash port 1202 is located on the inner wall of the wash basin 122. The two inlets and outlets 11 are respectively communicated with the two splash groove sections, and the scraper 104 is arranged in one splash groove section.

In the solution provided in this embodiment, the splash groove section can receive the splash liquid when the sample needle 200 is cleaned and the splash liquid when the scraper 104 is cleaned, so as to avoid the splash liquid from flying out of the cleaning main body 101 to pollute the field environment.

The bottom surface 1201 of the cleaning tank 12 is preferably inclined, and the bottom surface 1201 gradually faces downward along the periphery to the center, and a drain port is opened at the lowest position of the bottom surface 1201, so that the cleaning waste liquid can be discharged quickly, and the waste liquid is prevented from remaining. The cleaning main body 101 is provided with a drain joint 105 communicating with the drain port.

The embodiment of the utility model also provides a high-speed biochemical analyzer, which comprises a cleaning station 100, wherein the cleaning station 100 is provided by the embodiment.

The sample needle 200 of the high-speed biochemical analyzer moves along a preset track between a sampling position and a sample adding position, and the preset track is arc-shaped; the cleaning station 100 is arranged on a preset track and is positioned between a sampling position and a sample adding position; in the cleaning station 100, the water removal means is located on the side of the cleaning aperture 1202 facing the sampling location.

In the cleaning station, the cleaning main body 101 is in a cuboid structure, the inlet and outlet 11 is offset at the end part of the cleaning main body 101, namely, one end of the cleaning main body 101, where the inlet and outlet are arranged, is in a first direction to the opposite end, and the inlet and outlet 11 is offset from the center of the cleaning main body 101 along the direction perpendicular to the first direction, so that the sample needle 200 can pass through the inlet and outlet 11 when moving along a preset track. Specifically, the inlet and outlet 11 and the scraper 104 of the cleaning station 100 are respectively located on preset trajectories.

The sample needle 200 can rise to the first height after the sample is added at the sample adding position, then the sample needle moves into the cleaning station 100 along the preset track, the depth L1 of the sample needle 200 extending into the cleaning tank 12 is large, the sample needle 200 does not need to perform additional descending action at this time, the water source provided by the cleaning hole 1202 can be used for cleaning directly, and the time for the up-and-down movement of the sample needle 200 is saved; after the cleaning is finished, the sample needle 200 passes through a water removing device, if the water removing device is provided with the scrapers 104, the sample needle 200 firstly reaches the opening above the two scrapers 104 and then continues to rotate, the overlapped part of the two scrapers 104 in the scraper group is pulled out, and meanwhile, the scrapers 104 scrape the liquid on the outer wall of the sample needle 200; after that, the sample needle 200 leaves the scraper 104, the scraper 104 is restored, and water flows out from the scraper flushing joint 103 and flushes two sides of the corresponding scraper 104, so that the sample needle 200 is prevented from being polluted when the sample needle 200 passes next time.

The sample needle 200 continues to move along a predetermined trajectory to the sampling position after leaving the rinse station 100. After sampling is completed, the sample needle 200 rises to a second height (the second height is higher than the first height), then is directly rotated to a sample adding position, and during the period of passing through the cleaning station 100, the sample needle 200 stretches into the cleaning tank 12, and stretches into L2 to be smaller, so that the sample needle 200 can avoid the scraping plates 104 and directly reach the sample adding position, at the moment, the sample needle 200 cannot smoothly pass through the scraping plates 104 due to the angle between the two scraping plates 104, and meanwhile, the height of the sample needle 200 can also effectively prevent the sample needle 200 from completely drawing out the sample and externally hanging liquid from polluting the scraping plates 104.

The high-speed biochemical analyzer provided in this embodiment is applied to the cleaning station 100 provided in the above embodiment, and the accuracy and stability of the test result are higher. In addition, the high-speed biochemical analyzer provided by the embodiment has high cleaning efficiency on the sample needle 200, and can achieve the expected cleaning effect and effectively solve the problem of hanging liquid after cleaning under the condition of compact time. Of course, the high-speed biochemical analyzer provided in the present embodiment also has other effects related to the cleaning station 100 provided in the above embodiment, which are not described herein.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cleaning station for a high-speed biochemical analyzer, comprising:

2. The cleaning station of claim 1, wherein the water removal device is a scraper mounted within the cleaning tank and positioned between the cleaning aperture and the access opening for scraping off hanging liquid from the outer wall of the sample needle; the scraping plate has a first preset included angle with the vertical direction, and the upper end to the lower end of the scraping plate is gradually far away from the cleaning hole; or the water removing device is an air injection joint and is used for being externally connected with a high-pressure air source.

3. The cleaning station of claim 2, wherein the plurality of flights are arranged in groups; the number of the scrapers in each group is 2, and the scrapers are distributed on two opposite sides in the cleaning tank; in each group of scrapers, gaps are respectively arranged at the upper parts of the free ends of the two scrapers, and the lower parts of the free ends of the two scrapers are mutually overlapped.

4. The cleaning station of claim 2, wherein the cleaning body has a cleaning aperture formed in an inner wall thereof, the scraper being mounted in the cleaning aperture; the cleaning hole is used for externally connecting a water source to flush the scraping plate; the scraping plate is positioned in the middle of the cleaning hole, and divides the opening of the cleaning hole into two parts, and the water discharged from the two parts is respectively used for flushing the two sides of the scraping plate.

5. The cleaning station of claim 1, wherein the number of the inlets and the outlets is two and distributed on two sides of the cleaning hole; the water removing device is positioned between the cleaning hole and the first inlet and outlet.

6. The cleaning station of claim 1, wherein the axis of the cleaning aperture has a second predetermined angle with the horizontal, the second predetermined angle being 0 °; or alternatively

7. The washing station of claim 1 or 6, wherein the washing holes are vertically extending waist holes; and/or the number of the cleaning holes is two, and the cleaning holes are distributed on two sides of the cleaning tank.

8. The cleaning station of claim 1, wherein the cleaning tank comprises a first splash tank section, a needle cleaning tank section, and a second splash tank section in sequential communication; the cleaning hole is positioned on the inner wall of the needle washing groove section;

9. The cleaning station of claim 2, wherein the access port is offset from an end of the cleaning body; the inlet and outlet and the scraping plate are respectively positioned on the preset track.

10. A high-speed biochemical analyzer comprising a cleaning station, wherein the cleaning station is the cleaning station of any one of claims 1-9; the sample needle of the high-speed biochemical analyzer moves along a preset track between a sampling position and a sample adding position; the cleaning station is arranged on the preset track and is positioned between the sampling position and the sample adding position; in the cleaning station, the water removing device is positioned on one side of the cleaning hole facing the sampling position.