CN211478073U - Cleaning device and sample analyzer - Google Patents

Abstract

The utility model provides a belt cleaning device and sample analyzer, wherein, belt cleaning device, include: the rotary disc component comprises a rotary disc and a reaction container placing part; the cleaning assembly comprises a waste liquid pumping needle and a liquid injection needle; the distance interval between the waste liquid pumping needle and the liquid injection needle is the distance corresponding to half period of rotation of the turntable. The technical scheme of the utility model the cleaning device structure among the prior art is complicated relatively, the instrument space that occupies also relatively great problem has been solved effectively.

Description

Cleaning device and sample analyzer

Technical Field

The utility model relates to a medical instrument's technical field particularly, relates to a belt cleaning device and sample analysis appearance.

Background

Taking a chemiluminescence immunoassay analyzer in a sample analyzer as an example, the chemiluminescence immunoassay technology is a high-sensitivity and high-specificity analysis instrument which is developed rapidly worldwide in recent years, is used for detecting various immunity indexes of samples such as blood, urine or other body fluids in a clinical laboratory, and is based on the principle that the antibody antigen reaction and the chemiluminescence are combined to achieve high specificity and high sensitivity.

In the chemiluminescence analyzer, the reaction solution in the reaction vessel needs to be separately cleaned in order to obtain more accurate measurement results. Generally, in order to guarantee the cleaning efficiency, the cleaning work of the waste liquid needle and the liquid injection work of the liquid injection needle can be carried out simultaneously, so the waste liquid needle is pumped and the liquid injection needle is separately and independently arranged, namely, the installation structure of the liquid injection needle is required to be independently arranged, the structure of the cleaning device is relatively complex, and the occupied instrument space is relatively large.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a cleaning device and a sample analyzer, which solve the problems of the prior art that the structure of the cleaning device is relatively complex and the occupied space of the instrument is relatively large.

In order to achieve the above object, according to an aspect of the present invention, there is provided a cleaning device including: the rotary disc component comprises a rotary disc and a reaction container placing part; the cleaning assembly comprises a waste liquid pumping needle and a liquid injection needle; the distance interval between the waste liquid pumping needle and the liquid injection needle is the distance corresponding to half period of rotation of the turntable.

Further, the length of the waste liquid extracting needle is larger than that of the liquid injecting needle.

Further, the cleaning assembly is provided with a cleaning station and a liquid injection station, and the height difference between the liquid injection station and the cleaning station is equal to the length difference between the waste liquid pumping needle and the liquid injection needle.

Further, the waste liquid pumping needle and the liquid injection needle are integrally placed.

Further, one waste liquid extracting needle and one liquid injecting needle are in a group of needle structures, and in the same group of needle structures, the liquid injecting needle is located at the downstream of the waste liquid extracting needle.

Furthermore, the waste liquid extracting needles are multiple, the liquid injection needles are multiple in one-to-one correspondence with the waste liquid extracting needles, and the last liquid injection needle in the rotation direction of the turntable is independently arranged.

Further, the cleaning assembly comprises a cleaning driving part and an installation part, the rotary table is provided with a central hole, and the cleaning driving part and the installation part are located at the central hole of the rotary table.

Further, wash the subassembly and still include transmission portion and needle structure, needle structrual installation on the installation department, wash the drive division and link to each other with transmission portion, transmission portion links to each other with the installation department in order to drive take out the waste liquid needle and annotate the liquid needle and reciprocate in vertical direction.

Further, the waste liquid extracting needle comprises a liquid absorbing pipe and a reinforcing sleeve, the reinforcing sleeve is sleeved outside the liquid absorbing pipe, and the distance between the reinforcing sleeve and a liquid absorbing opening of the liquid absorbing pipe is preset.

Further, the needle structure includes a plurality of, and a plurality of needle structures are installed on the installation department at interval.

Further, the mounting portion is a plate-like structure having an escape portion, the needle structure including an initial needle structure and a final needle structure, the escape portion being located between the initial needle structure and the final needle structure.

Further, wash the drive division and be driving motor, transmission portion includes gear and rack, and the gear is installed in the pivot of washing the drive division, and the rack cooperatees with the gear, and the rack links to each other in order to drive the installation department and reciprocate with the installation department.

Furthermore, the waste liquid pumping needle further comprises a spring structure and an outer sleeve, the outer sleeve is sleeved outside the reinforcing sleeve, and the spring structure is located between the outer sleeve and the reinforcing sleeve.

Further, the spring structure includes spring and shutoff piece, and outer sheathed tube upper portion has the spacing portion of spring, and the shutoff piece is located outer sheathed tube lower part, and the shutoff piece passes through threaded connection with the reinforcement sleeve pipe, and the spring is supported and is pushed against between spacing portion of spring and shutoff piece.

Further, the liquid outlet direction of the liquid injection needle forms a preset angle with the vertical direction.

Further, the cleaning device further comprises a base, the turntable assembly and the cleaning assembly are arranged on the base, the turntable assembly comprises a plurality of reaction container placing portions and a plurality of through holes, the centers of the reaction container placing portions and the centers of the through holes are located on a concentric circle, and the through holes and the reaction container placing portions are correspondingly arranged in the vertical direction.

Further, the half cycle means that after the turntable rotates for half cycle time, the waste liquid pumping needle is positioned above the reaction container placing part from above the via hole while the liquid injection needle is positioned above the reaction container placing part from above the via hole; or the waste liquid pumping needle is positioned above the reaction container placing part from the upper part of the through hole while the liquid injection needle is positioned above the through hole from the upper part of the reaction container placing part.

According to the utility model discloses an on the other hand provides a sample analyzer, sample analyzer main part and belt cleaning device, and belt cleaning device is foretell belt cleaning device.

Use the technical scheme of the utility model, to take out waste liquid needle and annotate the liquid and to placing at carousel pivoted half cycle distance interval position to the meeting, when guaranteeing to realize simultaneously in carousel pivoted half cycle taking out the cleaning work of waste liquid needle and annotating the work of annotating the notes liquid of liquid needle, simplified belt cleaning device's structure, reduce the instrument space that occupies. The technical scheme of the utility model the cleaning device's among the prior art structure is complicated relatively and the instrument space that occupies also relatively great problem has been solved effectively.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 shows a schematic perspective view of an embodiment of a cleaning module according to the present invention;

FIG. 2 shows a schematic top view of the cleaning module of FIG. 1;

FIG. 3 shows a schematic structural view of a cleaning assembly of the cleaning module of FIG. 1;

FIG. 4 shows a schematic top view of the turntable of the cleaning module of FIG. 1;

FIG. 5 shows a schematic view of the mounting structure of the turntable drive of the cleaning module of FIG. 1;

FIG. 6 is a schematic view showing a mounting structure of the magnetic adsorption structure of the cleaning module of FIG. 1;

FIG. 7 is a schematic view showing an installation structure of a reaction vessel detection sensor and a liquid detection sensor of the cleaning module of FIG. 1;

FIG. 8 shows a cross-sectional schematic view of the turntable assembly of the cleaning module of FIG. 1;

FIG. 9 shows a schematic structural view of a cleaning assembly of the cleaning module of FIG. 1;

FIG. 10 shows a schematic of the blending assembly of the cleaning module of FIG. 1;

FIG. 11 shows a schematic structural view of the wash tank of the wash module of FIG. 1; and

FIG. 12 shows a schematic cross-sectional view of the waste needle of the cleaning module of FIG. 1.

Wherein the figures include the following reference numerals:

10. a turntable assembly; 11. a turntable; 111. a reaction vessel holding section; 112. a via hole; 12. a turntable driving section; 20. cleaning the assembly; 21. cleaning the driving part; 22. an installation part; 23. a transmission section; 231. a gear; 232. a rack; 233. a sliding plate; 234. A fixing plate; 24. a waste liquid extraction needle; 241. a pipette; 242. reinforcing the sleeve; 243. a spring structure; 244. an outer casing; 25. a cleaning tank; 26. injecting liquid needle; 30. a blending component; 31. a third driving section; 32. a lifting frame; 33. an eccentric rotor structure; 40. a magnetic adsorption structure; 50. a reaction vessel detection sensor; 60. a liquid detection sensor.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, the thicknesses of layers and regions are exaggerated for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.

As shown in fig. 1 to 12, the cleaning apparatus of the present embodiment includes: a turntable assembly 10 and a washing assembly 20. The turntable assembly includes a turntable 11 and a reaction vessel seating part. The cleaning assembly 20 includes a waste extraction needle 24 and an injection needle 26. The distance interval between the waste liquid extracting needle 24 and the liquid injecting needle 26 is the distance corresponding to half a period of rotation of the turntable 11.

Use the technical scheme of this embodiment, will take out waste liquid needle 24 and annotate liquid needle 26 and correspond the distance interval position in carousel 11 pivoted half cycle and place, just can realize taking out waste liquid needle 24's cleaning work and annotate the work of annotating the notes liquid of liquid needle 26 simultaneously in carousel 11 pivoted half cycle, when guaranteeing cleaning efficiency, simplified belt cleaning device's structure, reduced the instrument space that occupies. The technical scheme of the utility model the structure among the prior art is complicated relatively and the instrument space that occupies also great problem relatively has been solved effectively.

It should be noted that the reaction cup positions refer to fixed stations on the turntable and correspond to the reaction containers one by one, and one cycle refers to the time elapsed from the movement of the corresponding reaction container on one reaction cup position to the movement of the corresponding reaction container on the adjacent reaction cup position. The half cycle is not a time equivalent to a half of one cycle, but means a time of one half cycle after the turntable is rotated, the waste liquid extracting needle 24 is positioned from above the reaction vessel placing part 111 to above the via hole 112 while the liquid injecting needle 26 is positioned from above the via hole 112 to above the reaction vessel placing part; or the waste liquid extracting needle 24 is positioned above the reaction vessel seating part from above the via hole 112 while the liquid feeding needle 26 is positioned above the reaction vessel seating part 111 to above the via hole 112.

As shown in fig. 3, in the solution of the present embodiment, the length of the waste liquid extracting needle 24 is greater than the length of the liquid filling needle 26. The above-described structure ensures that the cleaning of the waste liquid extracting needle 24 and the liquid injection of the liquid injection needle 26 can be performed simultaneously, thus further ensuring the cleaning efficiency of the cleaning device. Specifically, the cleaning assembly 20 has a cleaning station and an injection station, and the height difference between the injection station and the cleaning station is equal to the length difference between the waste liquid extraction needle 24 and the injection needle 26.

As shown in fig. 1 to 3, in the technical solution of the present embodiment, the waste liquid extracting needle 24 and the liquid injecting needle 26 are integrally disposed. The above structure enables the waste liquid extracting needle 24 and the liquid injecting needle 26 to move simultaneously, so that not only are driving parts and other accessory parts greatly saved, but also the cost is saved, more importantly, on the premise of realizing the cleaning work of the waste liquid extracting needle 24 and the simultaneous injection work of the liquid injecting needle 26, the structure of the cleaning device is simplified, and the occupied instrument space is reduced.

As shown in fig. 1 to 3, in the solution of the present embodiment, one waste liquid extracting needle 24 and one liquid injecting needle 26 are in a set of needle structures, and in the same set of needle structures, the liquid injecting needle 26 is located downstream of the waste liquid extracting needle 24. The structure improves the cleaning efficiency. Specifically, the upstream and the downstream are defined in the rotation direction of the turntable 11, when in use, the turntable 11 rotates to the reaction container corresponding to the waste liquid extraction needle 24 to extract waste liquid, and after the waste liquid extraction is completed, the turntable rotates for a half period, the liquid injection needle 26 corresponds to the reaction container which has just extracted waste liquid, liquid is injected into the reaction container, and simultaneously, the waste liquid extraction needle 24 is cleaned.

As shown in fig. 3, in the solution of the present embodiment, a plurality of waste liquid extracting needles 24 are provided, and a plurality of liquid injecting needles 26 are provided in one-to-one correspondence with the plurality of waste liquid extracting needles 24, and are individually provided at the last liquid injecting needle 26 in the rotation direction of the turntable 11. The last filling needle 26 of one rotation of the rotary disk 11. The above structure avoids the problem that the last liquid injection needle 26 interferes with the mechanical arm for taking and placing the reaction vessel.

As shown in fig. 1 to 3, in the solution of the present embodiment, the cleaning assembly 20 includes a cleaning driving portion 21 and a mounting portion 22, the rotating disc 11 has a central hole, and the cleaning driving portion 21 and the mounting portion 22 are located at the central hole of the rotating disc 11. The structure can save the occupied space of the cleaning device, so that the cleaning device is compact in structure.

As shown in fig. 1 to 11, the cleaning apparatus of the present embodiment includes: cleaning assembly 20, cleaning assembly 20 is including wasing drive division 21, installation department 22, transmission portion 23 and needle structure, and needle structrual installation is on installation department 22, washs drive division 21 and links to each other with transmission portion 23, and transmission portion 23 links to each other with installation department 22 and reciprocates in vertical direction with driving the needle structure. The needle structure comprises a waste liquid extracting needle 24 and a liquid injecting needle 26, and the waste liquid extracting needle 24 and the liquid injecting needle 26 are positioned on the same concentric circle. The needle assembly is driven by the cleaning drive unit 21 to move vertically, and thus, the operations of extracting waste liquid from the waste liquid extraction needle 24, cleaning the waste liquid extraction needle 24, injecting cleaning liquid into the liquid injection needle 26, and the like can be realized. Thus, the time for the needle assembly to move horizontally is saved, and the efficiency is improved. The waste liquid extracting needle 24 and the liquid injection needle 26 are positioned on the same concentric circle, so that the continuity of the work of extracting waste liquid of the waste liquid extracting needle 24, cleaning the waste liquid extracting needle 24, injecting cleaning liquid and the like is ensured.

It should be noted that the above-mentioned liquid waste extracting needle 24 and liquid injection needle 26 are located on the same concentric circle, and the final purpose is to realize that the liquid waste extracting needle 24 can extract the liquid waste in the reaction container, and the liquid injection needle 26 can inject the cleaning liquid into the reaction container, and the reaction container rotates around the circle center, so that the liquid waste extracting needle 24 and the liquid injection needle 26 are located on the same concentric circle.

In the technical solution of this embodiment, the waste liquid extracting needle includes a pipette 241 and a reinforcing sleeve 242, the reinforcing sleeve 242 is sleeved outside the pipette 241, and the reinforcing sleeve 242 has a predetermined distance from a liquid absorbing port of the pipette 241. The reinforcing sleeve 242 makes the waste liquid extracting needle more firm. The pipette 241 is a hard material, specifically, a metal material. The bottom plane of the pipette 241 is an uneven plane, so that on one hand, liquid can enter the pipette 241, and meanwhile, magnetic beads are prevented from entering the pipette 241 as far as possible.

As shown in fig. 12, in the technical solution of the present embodiment, the waste liquid extracting needle further includes a spring structure 243 and an outer sleeve 244, the outer sleeve 244 is sleeved outside the reinforcing sleeve 242, and the spring structure 243 is located between the outer sleeve 244 and the reinforcing sleeve 242. The outer sleeve 244 may protect the spring structure 243, making the waste needle aesthetically pleasing. The spring structure 243 is provided so that the pipette 241 has a certain elasticity, for example, when the pipette 241 is in contact with the reaction vessel, the pipette 241 compresses the spring so that the force of the pipette 241 on the reaction vessel is small to avoid damaging the reaction vessel.

In the technical solution of this embodiment, the spring structure 243 includes a spring and a plugging member, the upper portion of the outer sleeve 244 has a spring limiting portion, the plugging member is located at the lower portion of the outer sleeve 244, the plugging member is connected with the reinforcing sleeve 242 through a thread, and the spring abuts against between the spring limiting portion and the plugging member. The structure has lower processing cost and convenient operation.

As shown in fig. 3, in the solution of the present embodiment, the liquid outlet of the liquid injection needle 26 forms a predetermined angle with the vertical direction. Become the inclination and erode, can be so that the magnetic bead complex that adsorbs in reaction vessel cleaning performance is better, washs cleaner. Specifically, the liquid injection needle 26 is inclined in a direction away from the center axis of the turntable, that is, the cleaning liquid is injected to the outer wall surface of the inner wall of the reaction vessel. The length of the liquid injection needle 26 and the length of the waste liquid extraction needle 24 are calculated, and for example, when the waste liquid extraction needle 24 is cleaned in a cleaning tank, the liquid injection needle 26 injects a cleaning liquid into the reaction vessel.

As shown in fig. 1 to 3, in the technical solution of the present embodiment, the needle structure includes a plurality of needle structures, and the plurality of needle structures are mounted on the mounting portion at intervals. The structure enables the cleaning to be more thorough, and the substances in the same reaction vessel can be cleaned for a plurality of times.

As shown in fig. 1 to 3, in the technical solution of the present embodiment, the mounting portion is a plate-shaped structure, the plate-shaped structure has a relief portion, the needle structure includes an initial needle structure and a final needle structure, and the relief portion is located between the initial needle structure and the final needle structure. The structure facilitates the follow-up work, and when the next step of work is carried out, the next step of work equipment cannot interfere the installation part.

As shown in fig. 1 to 11, the cleaning module of the present embodiment includes: a turntable assembly 10 and a washing assembly 20. The turntable assembly 10 includes a turntable 11 and a turntable driving part 12, the turntable driving part 12 is connected to the turntable 11 to drive the turntable 11 to rotate, a plurality of reaction container placing parts 111 are provided on the turntable 11, a via hole 112 is provided between two adjacent reaction container placing parts 111, and the centers of the plurality of reaction container placing parts 111 and the centers of the plurality of via holes 112 are located on the same concentric circle. Cleaning assembly 20 includes washing drive division 21, installation department 22 and transmission portion 23, washs drive division 21 and links to each other with transmission portion 23, and transmission portion 23 links to each other with installation department 22 and reciprocates in vertical direction with driving installation department 22.

By applying the technical scheme of the embodiment, when the cleaning module works, the reaction container placing part 111 and the through hole 112 are moved by the rotation of the turntable 11, the cleaning driving part 21 of the cleaning assembly drives the installation part 22 through the transmission part 23 only by moving up and down, and horizontal movement is not needed. The technical scheme of this embodiment has solved the lower problem of efficiency when taking out the waste liquid of the cleaning module among the prior art effectively.

It should be noted that the cleaning module of the present embodiment further includes a base. The turntable driving unit 12 is mounted on the base, and the cleaning driving unit 21 is mounted on the base. The horizontal movement of the mounting portion 22 is replaced by rotation of the turntable. The central axis of the concentric circle is coaxial with the central axis of the turntable.

As shown in fig. 1, 3 and 9, in the solution of the present embodiment, the cleaning assembly 20 further includes a waste liquid extracting needle 24, and the waste liquid extracting needle 24 is mounted on the mounting portion 22 to move up and down with the mounting portion 22. During operation, the waste liquid pumping needle vertically moves downwards to pump out waste liquid in the nth reaction container, then the waste liquid pumping needle 24 vertically moves upwards, the lowest point of the waste liquid pumping needle 24 is higher than the highest point of the reaction container, the rotary disc 11 continuously rotates, when the waste liquid pumping needle 24 is located at the vertical upper position of the first through hole 112 behind the nth reaction container, the rotary disc 11 stops rotating, the waste liquid pumping needle 24 vertically moves downwards to enter the cleaning pool 25, cleaning liquid in the cleaning pool cleans the waste liquid pumping needle 24, after cleaning is completed, the waste liquid pumping needle 24 vertically moves upwards, the lowest point of the waste liquid pumping needle 24 is higher than the highest point of the reaction container, the rotary disc 11 continuously rotates, when the waste liquid pumping needle 24 is located above the n +1 th reaction container, the rotary disc 11 stops rotating, the waste liquid pumping needle 24 pumps waste liquid in the n +1 th reaction container, and the steps are repeated. The structure reduces the horizontal movement of the waste liquid extracting needle 24 through the movement of the turntable 11, the technical scheme of the embodiment improves the efficiency, and the driving parts are reduced.

As shown in fig. 6, 7 and 11, in the solution of the present embodiment, the cleaning assembly 20 further includes a cleaning pool 25, and the cleaning pool 25 is located at the lower portion of the turntable 11 and corresponds to the through hole 112, so that the waste liquid extracting needle 24 can enter the cleaning pool 25 after passing through the through hole 112. The arrangement of the cleaning pool 25 enables the waste liquid pumping and cleaning of the waste liquid pumping needle 24 to be continuously carried out, so that the cleaning efficiency of the cleaning module is greatly improved.

As shown in fig. 11, in the technical solution of this embodiment, a liquid inlet is formed on a side wall of the cleaning pool 25, and a liquid outlet is formed on a bottom wall of the cleaning pool 25. Above-mentioned structure processing cost is lower, and it is convenient to set up, and the washing liquid gets into from the lateral wall of wasing pond 25, and the washing liquid forms "spring" easily like this, washs more conveniently. Specifically, be provided with in the washing pond 25 and turn over the purge tube that surges, turn over the purge tube that surges and be linked together with the inlet port, take out and lie in when waste liquid needle 24 washs turning over the purge tube that surges, turn over the upper surface that surges the purge tube is less than the upper surface of washing pond 25, the washing liquid can be saved to above-mentioned structure, the washing liquid be full of turn over surge the purge tube can, need not be full of washing pond 25. The liquid outlet sets up the diapire at wasing pond 25 for the washing liquid after the washing is drained off easily.

As shown in fig. 3, in the solution of this embodiment, the cleaning assembly 20 further includes a liquid injection needle 26, the liquid injection needle 26 and the waste liquid extracting needle 24 are installed on the installation portion 22 in pairs, the liquid injection needle 26 and the waste liquid extracting needle 24 in the same pair are located downstream of the waste liquid extracting needle 24, and the distance between the liquid outlet of the liquid injection needle 26 in the pair and the liquid inlet of the waste liquid extracting needle 24 is consistent with the distance between the adjacent through hole and the reaction container placement portion 111. The liquid injection needle 26 is provided so that the liquid injection needle 26 can inject a cleaning liquid into the reaction vessel after the waste liquid in the reaction vessel is completely extracted. Specifically, after the waste liquid in the nth reaction vessel is extracted by the waste liquid extraction needle 24, the rotary table 11 continues to rotate, when the first via hole 112 after the rotary table 11 rotates to the nth reaction vessel is located right below the waste liquid extraction needle 24, the liquid injection needle 26 is located right above the nth reaction vessel, the mounting portion 22 moves downward, the waste liquid extraction needle 24 is cleaned, and meanwhile, the liquid injection needle 26 injects a cleaning liquid into the nth reaction vessel. The waste liquid extracting needle 24 and the liquid injecting needle 26 work simultaneously, so that time is greatly saved, and efficiency is improved. Note that, downstream is a direction in which the turntable 11 rotates next when the turntable 11 rotates. For example, the (n + 1) th reaction vessel is located downstream of the nth reaction vessel.

As shown in fig. 1 to 3, in the solution of the present embodiment, the liquid injection needle 26 and the waste liquid extraction needle 24 are provided in plural pairs, and the plural pairs of waste liquid extraction needles 24 and liquid injection needles 26 are arranged on a concentric circle. This allows for more thorough cleaning of the interior of the reaction vessel. Specifically, the multiple pairs of the liquid injection needles 26 and the waste liquid extraction needles 24 are 4 pairs, and are separated by 90 degrees, and the last pair of the liquid injection needles 26 and the waste liquid extraction needles 24 can only have the waste liquid extraction needles 24 or only have the liquid injection needles 26.

As shown in fig. 1 to 3, the mounting portion 22 has a plate-like structure, and a plurality of pairs of the liquid extraction and discharge needles 24 and 26 are uniformly arranged on the mounting portion 22. It should be noted that one waste liquid extracting needle 24 and one liquid injecting needle 26 are a pair of waste liquid extracting needle 24 and liquid injecting needle. Three-quarter circular plates are arranged on the mounting part 22, and three convex plates are arranged, so that the material consumption of the mounting part 22 is greatly saved. The ring plate of the one-fourth of the vacant of installation department 22 has made things convenient for the operation of next link, for example when next link takes out reaction vessel, installation department 22 can not form the interference to the spare part of next link.

As shown in fig. 1 to 3, in the present embodiment, the mounting portion 22 has a bypass portion, the waste liquid extracting needle 24 includes an initial waste liquid extracting needle 24 and a final waste liquid extracting needle 24, and the bypass portion is located between the initial waste liquid extracting needle 24 and the final waste liquid extracting needle 24. So that the mounting portion 22 does not interfere with the next link. Specifically, the avoidance part is a one-fourth of a vacant annular plate.

As shown in fig. 4, in the present embodiment, the distance from the via hole 112 to the two adjacent reaction container placement units 111 is equal. The structure enables the rotating disc 11 to have stronger regularity when rotating, and the rotating distances of the waste liquid pumping needle 24 and the waste liquid cleaning needle 24 are equal.

As shown in fig. 9, in the technical solution of this embodiment, the cleaning driving portion 21 is a driving motor, the transmission portion 23 includes a gear 231 and a rack 232, the gear 231 is installed on a rotating shaft of the cleaning driving portion 21, the rack 232 is matched with the gear 231, and the rack 232 is connected with the installation portion 22 to drive the installation portion 22 to move up and down. The cooperation of the gear 231 and the rack 232 makes the mounting portion 22 relatively stable when moving. It should be noted that the rack 232 may be directly or indirectly connected to the mounting portion 22.

As shown in fig. 9, in the solution of the present embodiment, the transmission part 23 further includes a sliding plate 233 and a fixed plate 234, the rack 232 is fixed on the sliding plate 233, the sliding plate 233 has a sliding slot, the fixed plate 234 is fixed on the cleaning driving part 21, the fixed plate 234 has a guide rail adapted to the sliding slot, and the mounting part 22 is mounted on the sliding plate 233. The mounting part 22 is more accurate in moving position when moving due to the limit of the sliding groove and the sliding rail. Specifically, the rack 232 is vertically disposed.

As shown in fig. 1 to 3, in the present embodiment, the reaction container placement section 111 is a mounting through hole, and the reaction container is placed in the mounting through hole. The installation through hole is easy to process and convenient to use. This provides convenience for the subsequent blending work of the reaction vessel.

As shown in fig. 10, in the present embodiment, the cleaning module further includes a kneading unit 30, and the kneading unit 30 is located below the reaction vessel placing unit 111 and downstream of the liquid injection needle 26. The mixing component 30 is arranged to clean the liquid in the reaction vessel more thoroughly.

As shown in fig. 10, in the solution of the present embodiment, the blending assembly 30 includes a third driving part 31, a lifting frame 32 and an eccentric rotor structure 33, the lifting frame 32 is installed on the third driving part 31, the eccentric rotor structure 33 is installed on the lifting frame 32, and the eccentric rotor structure 33 has a blending position contacting with the reaction vessel and an avoiding position far away from the reaction vessel. The structure has lower processing cost and convenient operation. The third driving unit 31 may be a linear motor, an electric push rod, or the like. Preferably, the linear motor is adopted for driving in the embodiment. The lifting frame 32 is of a slide block and guide rail structure. The number of the linear motors is one, the lifting frame 32 is provided with a plurality of blending assemblies 30, the four liquid injection needles 26 can be provided with four blending assemblies 30, and one linear motor drives the four blending assemblies 30 to lift, so that the number of driving devices is greatly saved.

As shown in fig. 10, in the technical solution of this embodiment, the eccentric rotor structure 33 includes an eccentric motor and a mixing rotor disposed on the eccentric motor, the mixing rotor has a matching hole at an upper portion thereof, and the reaction container is located in the matching hole to mix the liquid in the reaction container. The structure has lower processing cost and better mixing effect. Specifically, the lower part of the blending rotor is provided with a mounting hole, one side wall of the mounting hole is provided with a notch, two sides of the notch are provided with through holes, and a bolt penetrates through the through holes to be fastened with a rotating shaft of the eccentric motor.

As shown in fig. 8, in the technical solution of this embodiment, the cleaning module further includes a magnetic adsorption structure 40, the magnetic adsorption structure 40 is located downstream of the mixing component 30, and the magnetic adsorption structure 40 is located on one side of the reaction vessel close to the central axis of the turntable 11. The magnetic adsorption structure 40 is arranged, so that the uniformly mixed magnetic beads are rapidly concentrated together, specifically, the magnetic beads are concentrated on one side of the reaction vessel close to the central axis of the turntable 11. The injection direction of the injection needle is far away from one side of the reaction container, which is close to the central shaft of the rotating disc 11, so that the magnetic beads can be prevented from splashing. Specifically, the magnetic adsorption structures 40 are four groups, and the four groups of magnetic adsorption structures 40 are respectively located between the four pairs of waste liquid extraction needles 24 and liquid injection needles 26. Between the two waste extraction needles 24.

As shown in fig. 1 to 4, in the solution of the present embodiment, the turntable 11 has a central hole passing through the central axis, and the transmission part 23 is inserted into the central hole. The structure makes the structure of the cleaning module compact. Specifically, the pipeline of the waste liquid pumping needle 24 and the pipeline of the liquid injection needle both penetrate through the central hole, so that the distances between the pipelines are equal, and further, the back pressure in the pipelines is the same.

As shown in fig. 8, in the solution of the present embodiment, the turntable driving portion 12 includes a driving motor, a timing belt and a timing pulley, the timing pulley is installed at the bottom of the turntable 11, the timing pulley has an installation hole matched with the central hole, and the turntable driving portion 12 is connected to the timing pulley through the timing belt. The structure has the advantages of low processing cost and convenient arrangement, and the synchronous belt can not be influenced by distance. Of course, the timing belt and timing pulley may be replaced with a gear structure.

As shown in fig. 7, in the solution of the present embodiment, the cleaning module further includes a reaction container detection sensor 50 and a liquid detection sensor 60, and both the reaction container detection sensor 50 and the liquid detection sensor 60 are disposed corresponding to the reaction container. The reaction container detection sensor 50 can prevent omission of reaction containers, and for example, when no reaction container is placed in a certain reaction container placement portion, the omission can be found in time. The liquid detection sensor 60 is provided to prevent the cleaning liquid from being injected into the reaction vessel. Specifically, the reaction vessel detection sensor and the liquid detection sensor correspond to the starting reaction vessel.

The application also provides a sample analyzer, which comprises a sample analyzer main body and a cleaning module. The cleaning module is the cleaning module. The sample analyzer has the advantages of high efficiency in cleaning, simple structure of the cleaning module and fewer parts.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (16)

1. A cleaning device, comprising:

a carousel assembly (10), the carousel assembly (10) comprising a carousel (11) and a reaction vessel seating portion;

a cleaning assembly (20), the cleaning assembly (20) comprising a waste fluid withdrawal needle (24) and a fluid infusion needle (26);

the waste liquid extracting needle (24) and the liquid injecting needle (26) are spaced by a distance corresponding to a half period of rotation of the turntable (11).

2. The cleaning device according to claim 1, characterized in that the length of the waste liquid withdrawal needle (24) is greater than the length of the liquid injection needle (26).

3. The cleaning device according to claim 1, characterized in that the waste liquid withdrawal needle (24) and the liquid injection needle (26) are integrally placed.

4. The cleaning device according to claim 1, wherein one said evacuation needle (24) and one said infusion needle (26) are in a set of needle configurations, and in the same set of needle configurations, said infusion needle (26) is located downstream of said evacuation needle (24).

5. A cleaning device according to claim 4, characterized in that the cleaning assembly (20) comprises a cleaning drive (21) and a mounting (22), the turntable (11) having a central hole, the cleaning drive (21) and the mounting (22) being located at the central hole of the turntable (11).

6. The cleaning device according to claim 5, wherein the cleaning assembly (20) further comprises a transmission part (23), the waste liquid extracting needle (24) and the liquid injecting needle (26) are mounted on the mounting part (22), the cleaning driving part (21) is connected with the transmission part (23), and the transmission part (23) is connected with the mounting part (22) to drive the waste liquid extracting needle (24) and the liquid injecting needle (26) to move up and down in the vertical direction.

7. The cleaning device according to claim 6, wherein the waste liquid extracting needle (24) comprises a pipette (241) and a reinforcing sleeve (242), the reinforcing sleeve (242) is sleeved on the outside of the pipette (241), and the reinforcing sleeve (242) has a predetermined distance from a liquid suction port of the pipette (241).

8. The cleaning device according to claim 7, wherein the cleaning driving portion (21) is a driving motor, the transmission portion (23) comprises a gear (231) and a rack (232), the gear (231) is installed on a rotating shaft of the cleaning driving portion (21), the rack (232) is matched with the gear (231), and the rack (232) is connected with the installation portion (22) to drive the installation portion (22) to move up and down.

9. The cleaning device according to claim 7, wherein the evacuation needle (24) further comprises a spring structure (243) and an outer sleeve (244), the outer sleeve (244) being sleeved outside the reinforcing sleeve (242), the spring structure (243) being located between the outer sleeve (244) and the reinforcing sleeve (242).

10. The cleaning device according to claim 9, characterized in that the spring structure (243) comprises a spring and a blocking element, the upper part of the outer sleeve (244) has a spring stop, the blocking element is located at the lower part of the outer sleeve (244), the blocking element is in threaded connection with the reinforcing sleeve (242), and the spring abuts between the spring stop and the blocking element.

11. The cleaning device according to claim 1, characterized in that the liquid outlet direction of the liquid injection needle (26) is at a predetermined angle to the vertical direction.

12. The cleaning device according to claim 1, characterized in that the waste fluid withdrawal needle (24) and the liquid injection needle (26) are located on the same concentric circle.

13. The cleaning apparatus according to claim 1, further comprising a base on which the turntable assembly (10) and the cleaning assembly (20) are both disposed, the turntable assembly (10) including a plurality of the reaction container placement parts (111) and a plurality of via holes (112), centers of the plurality of reaction container placement parts (111) and centers of the plurality of via holes (112) being located on the same concentric circle.

14. The cleaning apparatus according to claim 13, wherein the through hole (112) is provided adjacent to the reaction vessel placement section (111) in a rotation direction of the turntable (11).

15. The cleaning apparatus according to claim 13, wherein the half cycle is a period of time after the turntable (11) rotates for the half cycle, the waste liquid extracting needle (24) is positioned above the reaction vessel placing section (111) to above the via hole (112) while the liquid filling needle (26) is positioned above the reaction vessel placing section from above the via hole (112); or the waste liquid extracting needle (24) is positioned above the reaction vessel placing part from above the via hole (112) while the liquid injecting needle (26) is positioned above the reaction vessel placing part (111) to above the via hole (112).

16. A sample analyser, sample analyser body and cleaning device characterised in that the cleaning device is a cleaning device as claimed in any one of claims 1 to 15.

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