CN210376406U - Biochemical analyzer - Google Patents

Abstract

The utility model relates to the technical field of biochemical analyzers, in particular to a biochemical analyzer; the device comprises a rack, a detection mechanism for detecting a sample, a sample conveying mechanism for loading the sample onto the detection mechanism, and an upper reagent mechanism for adding a reaction reagent into the detection mechanism; the utility model discloses can accomplish material loading, detection and unloading to the sample automatically, area is little, the structure is ingenious, efficient.

Description

Biochemical analyzer

Technical Field

The utility model relates to a biochemical analyzer technical field, concretely relates to biochemical analyzer.

Background

With the development of science and technology, modern medicine usually collects samples of blood, urine, secretion and the like of a patient, then puts the samples into a test tube, and then a tester puts the test tube with the samples into an analyzer for analysis, and then obtains an experimental result; the analyzer is often provided with a reagent feeding mechanism for containing a reagent and a detection mechanism for testing a sample, during detection, the detection mechanism sucks the sample in a test tube into a reaction cup, then adds a reaction reagent for analysis, manually shakes the reaction cup, observes the reaction condition of the test tube, and finally gives an analysis result; in addition, one or more reagents may need to be added for reaction for different samples, so that a plurality of reagent storage points need to be arranged in the analyzer, and each reagent storage point is provided with a material suction pipe for sucking the reagent, so that the existing analyzer has the disadvantages of large occupied area, complex structure and low efficiency.

Disclosure of Invention

An object of the utility model is to overcome above shortcoming, provide a biochemical analyzer, can accomplish material loading, detection and the unloading to the sample automatically, area is little, the structure is ingenious, efficient.

In order to achieve the above purpose, the specific scheme of the utility model is as follows: a biochemical analyzer comprises a frame, a detection mechanism for detecting a sample, a sample transmission mechanism for loading the sample onto the detection mechanism, and an upper reagent mechanism for adding a reaction reagent into the detection mechanism;

the sample conveying mechanism comprises a test tube rack, a conveying frame, a feeding area for feeding, a material taking area for the detection mechanism to absorb materials in the test tube, a discharging area for discharging and a material moving device for moving the test tube rack; the feeding area, the blanking area, the material taking area and the material moving device are all arranged on the rack;

the upper reagent mechanism comprises a reagent cylinder which is rotationally connected with the rack, a plurality of reagent boxes which are arranged on the reagent cylinder, a reagent rotating device which enables the reagent cylinder to rotate, and an upper reagent device which is used for feeding the reagents in the reagent boxes to the detection mechanism;

the detection mechanism comprises a reaction disc rotatably connected with the rack, a plurality of reaction cups arranged on the reaction disc, a reaction rotating device for rotating the reaction disc, a stirring device for stirring samples in the reaction cups, an optical detection device for detecting the samples stirred by the stirring device and a cleaning device for cleaning the reaction cups;

the rotating device, the stirring device, the optical detection device and the cleaning device are all arranged on the rack.

The utility model is further arranged in that the material moving device comprises a feeding unit which enables the test tube rack to move from the feeding area to the feeding port of the material taking area and a discharging unit which enables the test tube rack to move from the discharging port of the material taking area to the discharging area; the material moving device further comprises a transverse moving assembly used for enabling the test tube rack to move from a feeding port of the material taking area to a discharging port of the material taking area.

The utility model is further provided that the feeding unit comprises a feeding longitudinal moving component which makes the test tube rack longitudinally move; the feeding longitudinal moving assembly comprises a first fixing plate arranged on the rack, a guide groove arranged on one side of the test tube rack and a guide convex rail arranged on one side of the first fixing plate; the test tube rack is connected with the guide convex rail in a sliding way through the guide groove; the feeding longitudinal moving assembly further comprises a first power module which enables the test tube rack to move along the guide convex rail; the feeding area is arranged on one end of the first fixing plate; the transverse moving assembly is arranged at the other end of the first fixing plate;

the transverse moving assembly comprises a second fixing plate, a transverse groove formed in the second fixing plate, a pushing lug arranged in the transverse groove, an elastic component enabling the pushing lug to stretch in the transverse groove and a second driving component enabling the pushing lug to move left and right in the transverse groove; the pushing lug is arranged on the second driving part through the elastic shrinkage part; the elastic and telescopic part and the second driving part are arranged below the second fixing plate; the bottom of the test tube rack is provided with a material pushing groove clamped with the material pushing lug;

the elastic shrinkage component comprises a torsion spring, a hinged shaft, a connecting block and a limiting block for limiting the rotation angle of the pushing lug; the articulated shaft and the limiting block are both arranged on the connecting block; the connecting block is connected with the output end of the second driving part; the pushing lug is hinged with the connecting block through the hinge shaft; the torsion spring is sleeved on the hinge shaft; one end of the torsion spring is fixedly connected with the connecting block; the other end of the torsion spring is fixedly connected with the pushing lug.

The utility model is further provided that the first power module comprises a guide groove, a straight push block and a first driving part; the guide groove is arranged on the first fixing plate; the guide groove and the guide convex rail are arranged in parallel; the feeding area is arranged at one end of the guide groove; the transverse moving assembly is arranged at the other end of the guide groove; the straight push block is connected with the guide groove in a sliding manner; the top of the straight push block abuts against the bottom of the test tube rack; the first driving part is arranged below the first fixing plate; the output end of the first driving part is fixedly connected with the straight push block;

the first driving part comprises a first slide rail, a first slide block, a first belt, a first driving wheel, a first driven wheel and a first direct-push driving part; the first sliding rail is connected with the first sliding block in a sliding manner; the first sliding block is fixedly connected with the first belt; two ends of the first belt are respectively sleeved on the first driving wheel and the first driven wheel; the output end of the first direct-push driving piece is connected with the first driving wheel; the straight push block is fixedly arranged at the top of the first sliding block; the first slide rail is arranged below the first fixing plate;

the second driving part comprises a second slide rail, a second slide block, a second belt, a second driving wheel, a second driven wheel and a second direct-push driving part; the second slide rail is connected with the second slide block in a sliding manner; the second sliding block is fixedly connected with the second belt; two ends of the second belt are respectively sleeved on the second driving wheel and the second driven wheel; the output end of the second direct-pushing driving piece is connected with the second driving wheel; the elastic shrinkage component is fixedly arranged at the top of the second sliding block; the second slide rail is arranged below the second fixing plate.

The utility model is further arranged in that the sample transmission mechanism further comprises a visual scanning device for scanning the bar code of the test tube; the vision scanning equipment is fixedly connected with the rack; the vision scanning equipment is arranged at the material taking area;

the blanking unit comprises a blanking longitudinal moving assembly which enables the test tube rack to move longitudinally; the blanking longitudinal moving assembly comprises a third fixing plate, a blanking groove arranged on one side of the test tube rack and a blanking guide rail arranged on one side of the third fixing plate; the test tube rack is connected with the blanking guide rail in a sliding manner through the blanking groove; the blanking longitudinal moving assembly further comprises a third power module which enables the test tube rack to move along the blanking guide rail; the blanking area is arranged at one end of the third fixing plate; the transverse moving assembly is arranged at the other end of the third fixing plate.

The utility model is further provided with that the reaction rotating device comprises a disc main shaft, a connecting disc, a disc speed reducing component and a disc rotating driving piece; the bottom of the disc main shaft is rotatably connected with the rack; the connecting disc is arranged at the top of the disc main shaft; the reaction disc is fixedly connected with the connecting disc; the disc rotating driving piece is fixedly arranged on the rack; the output end of the disc rotating driving piece is connected with the disc main shaft through the disc speed reducing assembly;

the stirring device comprises a stirring head for stirring a sample in the reaction cup, a stirring driving piece for driving the stirring head to rotate, a stirring lifting component for lifting the stirring driving piece, a third cleaning component for containing cleaning liquid and a first swinging component for enabling the stirring head to move between the reaction disc and the third cleaning component; the stirring lifting component is arranged on the rack; the output end of the stirring lifting assembly is connected with the first swinging assembly; the output end of the first swinging assembly is connected with the stirring driving piece; the third cleaning component is arranged on one side of the reaction disc;

the cleaning device comprises a cleaning head part, a cleaning fixing plate, a cleaning lifting plate in sliding connection with the cleaning fixing plate and a cleaning lifting driving part for enabling the cleaning lifting plate to slide on the cleaning fixing plate; the cleaning fixing plate is fixedly connected with the rack; the cleaning lifting driving part is fixedly arranged on the cleaning fixing plate; the cleaning head component is arranged at the top of the cleaning lifting plate; the cleaning head part is arranged right above the reaction cup;

the optical detection device comprises a light source emitting part and a light source receiving part; the light source emitting part and the light source receiving part are arranged oppositely; the light source emitting part and the light source receiving part are both fixedly connected with the rack; a first groove for the reaction cup to pass through is arranged between the light source emitting part and the light source receiving part; when the reaction disc rotates, the reaction cups are driven to enter the first grooves one by one.

The utility model is further provided that the first swing component comprises a stirring rotating shaft, a stirring speed reducing component and a stirring motor; the output end of the stirring motor is connected with the stirring rotating shaft through the stirring speed reducing assembly; the stirring driving piece is arranged on the stirring rotating shaft; the stirring lifting assembly comprises a stirring fixing plate, a stirring lifting plate in sliding connection with the stirring fixing plate and a stirring lifting driving component used for enabling the stirring lifting plate to slide on the stirring fixing plate; the stirring fixing plate is fixedly connected with the rack; the stirring lifting driving part is fixedly arranged on the stirring fixing plate; the first swing assembly is arranged at the top of the stirring lifting plate.

The cleaning head part comprises a mounting rack and a plurality of groups of cleaning needle groups arranged on the mounting rack; the mounting frame is connected with the cleaning lifting plate; each group of cleaning needle groups comprises a water inlet cleaning needle for injecting cleaning liquid into the reaction cup and a water outlet cleaning needle for absorbing samples in the reaction cup; the water inlet cleaning needle and the water outlet cleaning needle are arranged side by side;

a plurality of accommodating grooves for accommodating reaction cups are formed in the reaction disc; each accommodating groove is internally provided with an elastic sheet for clamping the reaction cup; the reaction cup is detachably connected with the accommodating groove through the elastic sheet.

The utility model is further provided with that the reagent feeding device comprises a reagent suction head for sucking the reagent in the reagent box and a first cleaning component for cleaning the reagent suction head; the reagent feeding device also comprises a reagent feeding assembly which is used for enabling the reagent suction head to move among the detection mechanism, the reagent cylinder and the first cleaning assembly; the first cleaning assembly, the reagent rotating device and the reagent feeding assembly are all arranged on the rack.

The utility model is further arranged in that the reagent rotating device comprises a cylinder rotating shaft, a connecting cover, a cylinder speed reducing component and a cylinder rotating driving piece; the bottom of the cylinder rotating shaft is rotatably connected with the rack; the connecting cover is arranged at the top of the cylinder rotating shaft; the reagent cylinder is fixedly connected with the connecting cover; the cylinder rotation driving piece is fixedly arranged on the rack; the output end of the cylinder rotation driving piece is connected with the cylinder rotation shaft through the cylinder speed reduction assembly;

the reagent feeding assembly comprises a reagent swinging component used for enabling the reagent suction head to lift and a reagent swinging component used for enabling the reagent suction head to swing left and right; the reagent swinging component is arranged on the rack; the output end of the reagent swinging component is connected with the reagent swinging component; the output end of the reagent swinging part is connected with the reagent sucking head;

the reagent swinging component comprises a swinging rotating shaft, a reagent speed reducer and a swinging motor; the output end of the swing motor is connected with the swing rotating shaft through the reagent speed reducer; the reagent suction head is arranged on the swinging rotating shaft; the reagent swinging part comprises a lifting fixed plate, a lifting movable plate which is connected with the lifting fixed plate in a sliding way and a swinging lifting driving part which is used for enabling the lifting movable plate to slide on the lifting fixed plate; the lifting fixing plate is fixedly connected with the rack; the swinging lifting driving piece is fixedly arranged on the lifting fixing plate; the reagent swinging component is arranged at the top of the lifting movable plate;

the bottom of the reagent cylinder is provided with a refrigerating device for reducing the temperature in the reagent cylinder; the reagent cylinder comprises an outer cylinder and an inner cylinder; a heat insulation layer is formed between the outer cylinder and the inner cylinder; the kit is arranged in the inner barrel; the output end of the refrigerating device is connected with the inside of the inner barrel;

the reagent boxes are uniformly distributed in the inner barrel around the axis of the inner barrel;

the first cleaning assembly comprises a first cleaning pool, a first cup clamp, a first water inlet for adding cleaning liquid and a first water outlet for discharging waste liquid in the first cleaning pool; the first cleaning pool is fixedly connected with the rack through the first cup clamp; the first water inlet and the first water outlet are communicated with the first cleaning pool.

The utility model is further provided with that the biochemical analyzer also comprises a sample sucking device which feeds the sample in the test tube to the detection mechanism; the sample suction device comprises a second cleaning assembly, a sample suction head assembly, a suction head lifting assembly and a suction head swinging assembly, wherein the suction head lifting assembly is used for lifting the sample suction head assembly, and the suction head swinging assembly is used for swinging the sample suction head assembly left and right; the material suction head lifting assembly is arranged on the rack; the output end of the suction head lifting assembly is connected with the suction head swinging assembly; and the output end of the suction head swinging assembly is connected with the sample suction head assembly.

The utility model has the advantages that: the device is characterized by comprising a rack, a detection mechanism for detecting a sample, a sample conveying mechanism for feeding the sample to the detection mechanism, and an upper reagent mechanism for adding a reaction reagent into the detection mechanism; the automatic feeding device can automatically complete the feeding, the detection and the discharging of samples, and has the advantages of small occupied area, ingenious structure and high efficiency.

Drawings

The invention is further described with the aid of the accompanying drawings, in which, however, the embodiments do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived from the following drawings without inventive effort.

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural diagram of the sample conveying mechanism of the present invention;

FIG. 3 is a schematic structural view of the sample transport mechanism after the first fixing plate, the second fixing plate and the third fixing plate are hidden;

fig. 4 is a schematic structural diagram of a sample transport mechanism at another viewing angle according to the present invention;

fig. 5 is a schematic structural view of the elastic component and the second driving component of the present invention;

fig. 6 is a schematic structural view of the test tube rack of the present invention;

FIG. 7 is a top view of the first, second and third retaining plates;

fig. 8 is a top view of the present invention;

FIG. 9 is a schematic structural view of the reagent feeding assembly, the sample sucking device and the reagent cylinder;

FIG. 10 is an exploded view of the reagent cylinder and refrigeration unit of the present invention;

fig. 11 is a schematic structural view of the reagent feeding assembly of the present invention;

fig. 12 is a schematic structural view of a first cleaning assembly of the present invention;

FIG. 13 is an exploded view of the disk rotation device, the reaction disk and the optical detection device;

fig. 14 is a schematic structural diagram of the optical detection device of the present invention.

Fig. 15 is a schematic structural view of the cleaning device of the present invention;

fig. 16 is a schematic structural view of the stirring device of the present invention.

Wherein: 10-a frame; 11-test tube rack; 112-a feeding area; 113-a material taking area; 114-a blanking zone; 131-a first fixing plate; 132-a guide groove; 133-guide convex rail; 134-a guide groove; 135-straight push block; 136-a first slide rail; 137-a first slider; 138-a first belt; 139-first driven wheel; 130-a first push-through drive; 14-a traversing assembly; 141-a second fixing plate; 142-a transverse slot; 143-pushing the material lug; 144-pushing grooves; 1451-torsion spring; 1452-a hinge shaft; 1453-connecting block; 1454-a limiting block; 1462-second slider; 1463-a second belt; 1464-second drive wheel; 1465 — second driven wheel; 1466 — second direct drive; 15-a visual scanning device; 161-third fixing plate; 162-a blanking groove; 163-blanking guide rails; 164-a third power module; 221-reaction disc; 222-reaction cup; 223-a receiving groove; 231-disc spindle; 232-connecting disc; 233-a disk reduction assembly; 234-disc rotation drive; 24-a stirring device; 241-stirring head; 242-stirring drive member; 243-third cleaning assembly; 244-stirring rotating shaft; 245-a stirring deceleration assembly; 246-stirring fixed plate; 248-a stirring lifting driving component; 26-a cleaning device; 261-washing the fixing plate; 262-cleaning the lifting plate; 263-cleaning the lifting driving part; 264-washing head component; 265-a mounting frame; 266-water inlet cleaning needle; 267-water outlet cleaning needle; 25-an optical detection device; 251-a light source emitting portion; 252-a light source receiving part; 253-a first groove; 312-a reagent cylinder; 313-kit; 321-a cylindrical rotating shaft; 322-a connecting cover; 323-cylinder deceleration assembly; 324-a cylinder rotation drive; 33-a reagent feeding assembly; 334-oscillating a rotating shaft; 335-a reagent deceleration member; 336-a swing motor; 337-lifting fixed plate; 338 — swing lift drive; 34-a refrigeration device; 341-outer cylinder; 342-an inner cylinder; 35-a first cleaning assembly; 351-a first washing tank; 352-first cup holder; 353 — a first water inlet; 354-first drain; 36-a sample suction device; 362-a second cleaning assembly; 363-a sample pick-up head assembly; 364-suction head lifting assembly; 365-a suction head swing assembly; 37-reagent suction head.

Detailed Description

The following detailed description of the present invention, taken in conjunction with the accompanying drawings and specific examples, is not intended to limit the scope of the invention.

As shown in fig. 1 to 16, the biochemical analyzer according to this embodiment includes a frame 10, a detecting mechanism for detecting a sample, a sample conveying mechanism for feeding the sample to the detecting mechanism, and an upper reagent mechanism for adding a reaction reagent to the detecting mechanism;

the sample conveying mechanism comprises a test tube rack 11, a conveying rack, a feeding area 112 for feeding, a material taking area 113 for a detection mechanism to absorb materials in a test tube, a discharging area 114 for discharging and a material moving device for moving the test tube rack 11; the feeding area 112, the blanking area 114, the material taking area 113 and the material moving device are all arranged on the rack 10;

the upper reagent mechanism comprises a reagent cylinder 312 rotationally connected with the rack 10, a plurality of reagent boxes 313 arranged on the reagent cylinder 312, a reagent rotating device for rotating the reagent cylinder 312, and an upper reagent device for loading the reagents in the reagent boxes 313 onto the detection mechanism;

the detection mechanism comprises a reaction disc 221 rotationally connected with the frame 10, a plurality of reaction cups 222 arranged on the reaction disc 221, a reaction rotating device for rotating the reaction disc 221, a stirring device 24 for stirring samples in the reaction cups 222, an optical detection device 25 for detecting the samples stirred by the stirring device 24, and a cleaning device 26 for cleaning the reaction cups 222;

the rotating device, the stirring device 24, the optical detection device 25 and the cleaning device 26 are all arranged on the frame 10.

When in use, the test tube rack 11 is provided with a plurality of test tube grooves for placing test tubes, and before the test tube rack 11 is placed in the loading area 112, an inspector places a plurality of test tubes with samples on the test tube rack 11 in advance; when the test tube rack 11 is properly placed, the material moving device pushes the test tube rack 11 to move the position of the material taking area 113; the test tubes reaching the material taking area 113 start to perform a material taking process, and the material taking process is to take the samples in the test tubes one by a detection mechanism; after the material taking process is finished, the material moving device pushes the test tube rack 11 to enable the test tube rack 11 to move towards the blanking area 114, when the test tube rack 11 reaches the blanking unit, the blanking unit pushes the test tube rack 11 to move to the blanking area 114, at the moment, an inspector takes down the test tube rack 11 to complete the sample conveying and conveying process of a plurality of test tubes; after the material taking process is finished, the reagent in the reagent kit 313 is fed into the reaction cup 222 in the detection mechanism by the reagent feeding device, a feeding point is arranged on the reaction disc 221, at this time, the sample and the reagent are injected into the reaction cup 222, then the reaction cup 222 moves to the position of the stirring device 24 under the action of the reaction rotating device, and when the reaction cup 222 reaches the position of the stirring device 24, the solution in the reaction cup 222 is stirred by the stirring device 24, so that the solution can fully react; then, the reaction cup 222 moves to the position of the optical detection device 25 under the action of the rotating device, and the optical detection device 25 acquires image information reflecting the solution in the tube and obtains a detection result after processing; then, the reaction cup 222 moves to the position of the cleaning device 26 under the action of the rotating device, and the cleaning device 26 finishes cleaning the reaction cup 222 by injecting water and absorbing water into the reaction cup 222 for multiple times, so that the next test result is prevented from being influenced; finally, the reaction cup 222 moves to the position of the feeding point under the action of the rotating device, and a new round of detection is repeated; in order to accelerate the detection effect, the reaction cups 222 in the reaction disc 221 can be divided into a plurality of groups, and batch detection can be realized by controlling the rotation time; need not artifical the detection, it is high to detect the rate of accuracy, and efficiency is fast.

As shown in fig. 1 to 16, in the biochemical analyzer of the present embodiment, the material moving device includes a feeding unit for moving the test tube rack 11 from the feeding area 112 to the feeding port of the material taking area 113, and a discharging unit for moving the test tube rack 11 from the discharging port of the material taking area 113 to the discharging area 114; the material moving device further comprises a transverse moving assembly 14 for moving the test tube rack 11 from a feeding port of the material taking area 113 to a discharging port of the material taking area 113.

When in use, the test tube rack 11 is provided with a plurality of test tube grooves for placing test tubes, and before the test tube rack 11 is placed in the loading area 112, an inspector places a plurality of test tubes with samples on the test tube rack 11 in advance; when the test tube rack 11 is properly placed, the feeding unit pushes the test tube rack 11 to move towards the traversing assembly 14, and then the traversing assembly 14 continues to push the test tube rack 11 to move towards the position of the material taking area 113; the test tubes reaching the material taking area 113 start to perform a material taking process, and the material taking process is to take the samples in the test tubes one by a detection mechanism; after the material taking process is finished, the transverse moving assembly 14 pushes the test tube rack 11 to enable the test tube rack 11 to move towards the direction of the material outlet of the material taking area 113, when the test tube rack 11 reaches the blanking unit, the blanking unit pushes the test tube rack 11 to move to the blanking area 114, at the moment, an inspector takes down the test tube rack 11 to complete the sample conveying and conveying process of a plurality of test tubes.

As shown in fig. 1 to 16, in the biochemical analyzer of the present embodiment, the loading unit includes a loading longitudinal moving assembly that moves the test tube rack 11 longitudinally; the feeding longitudinal moving assembly comprises a first fixing plate 131 arranged on the rack 10, a guide groove 132 arranged on one side of the test tube rack 11 and a guide convex rail 133 arranged on one side of the first fixing plate 131; the test tube rack 11 is slidably connected with the guide convex rail 133 through the guide groove 132; the feeding longitudinal moving assembly further comprises a first power module which enables the test tube rack 11 to move along the guide convex rail 133; the feeding area 112 is disposed on one end of the first fixing plate 131; the traverse assembly 14 is arranged at the other end of the first fixing plate 131;

specifically, when the test tube rack 11 is placed on the loading area 112 of the first fixing plate 131, the guide groove 132 of the test tube rack 11 will be simultaneously caught in the guide rail 133 to control the advancing direction of the test tube rack 11 while moving; after the test tube rack 11 is placed on the feeding area 112, the first power module operates, and the output end of the first power module pushes the material test tube rack 11 to move along the guide rail 133 until reaching the traverse assembly 14 at the other end of the first fixing plate 131.

The traverse assembly 14 includes a second fixing plate 141, a transverse slot 142 opened on the second fixing plate 141, a pushing lug 143 disposed in the transverse slot 142, a retractable member for extending and retracting the pushing lug 143 in the transverse slot 142, and a second driving member for moving the pushing lug 143 in the transverse slot 142 in the lateral direction; the pushing lug 143 is mounted on the second driving part through the elastic part; the elastic and retractable part and the second driving part are both arranged below the second fixing plate 141; the bottom of the test tube rack 11 is provided with a material pushing groove 144 clamped with the material pushing lug 143;

during operation, when the bottom of the test tube rack 11 is about to reach the position of the transverse groove 142, the pushing lug 143 is located at the beginning end of the transverse groove 142, which is the initial position of the pushing lug 143, and under the action of the elastic component, the pushing lug 143 retracts into the transverse groove 142, so that the test tube rack 11 can smoothly reach the position of the transverse groove 142; when one side of the test tube rack 11 reaches the position of the transverse groove 142, the material pushing lug 143 protrudes under the action of the elastic component, and then is clamped with the material pushing groove 144 at the bottom of the test tube rack 11, and then the second driving component enables the material pushing lug 143 to drive the test tube rack 11 to move towards the position of the material taking area 113; until the whole test tube rack 11 is pushed to the material taking area 113; when the pushing lug 143 reaches the end of the transverse slot 142, the pushing lug 143 retracts to be lower than the inside of the transverse slot 142 under the action of the elastic component of the pushing lug 143, and the second driving component moves the pushing groove 144 back to the initial position of the pushing lug 143.

The elastic component comprises a torsion spring 1451, a hinge shaft 1452, a connecting block 1453 and a limiting block 1454 for limiting the rotation angle of the material pushing lug 143; the hinge shaft 1452 and the limit block 1454 are both arranged on the connecting block 1453; the connecting block 1453 is connected with an output end of the second driving member; the pushing lug 143 is hinged to the connecting block 1453 through the hinge shaft 1452; the torsional spring 1451 is sleeved on the hinge shaft 1452; one end of the torsion spring 1451 is fixedly connected with the connecting block 1453; the other end of the torsion spring 1451 is fixedly connected to the pushing protrusion 143.

Specifically, in a natural state, the pushing projection 143 is in a convex state; in order to better pass the test tube rack 11, the pushing protrusion 143 is moved by the second driving member to be received at the bottom of the second fixing plate 141, when the test tube rack 11 reaches the position of the transverse groove 142, the second driving member drives the pushing protrusion 143 to enter the transverse groove 142, and the torsion spring 1451 is in a power storage state; when the test tube rack 11 reaches the position of the transverse groove 142, the second driving component moves the material pushing lug 143 to enter the position of the transverse groove 142, the material pushing lug 143 bounces under the elastic force of the torsion spring 1451 and is clamped with the material pushing groove 144 at the bottom of the test tube rack 11, and then the second driving component drives the material pushing lug 143 to move in the transverse groove 142, so that the test tube rack 11 is translated to the material taking area 113 to perform a material taking process; after the material taking process is completed, the second driving component drives the material pushing lug 143 to move back in the transverse groove 142, in the process of moving back, the top of the material pushing lug 143 is pushed by the test tube rack 11, due to the arrangement of the torsion spring 1451 and the hinge shaft 1452, the material pushing lug 143 rotates along the hinge shaft 1452, the material pushing lug 143 retracts in the transverse groove 142, and the position of the test tube rack 11 cannot be moved; specifically, the bottom of the test tube rack 11 may be provided with a plurality of continuously arranged pushing grooves 144; meanwhile, the length of the pushing groove 144 is smaller than that of the transverse slot 142; because the length of the pushing groove 144 is smaller than that of the transverse slot 142, each time the pushing lug 143 drives the test tube rack 11 to move towards the direction of the material taking area 113, the pushing lug 143 can be ensured to be clamped with the next pushing groove 144 when the transverse slot 142 moves back; and then the second driving part and the elastic part repeat the process, and the test tube rack 11 is translated to the material taking area 113 section by section to carry out the material taking process or the test tube rack 11 is moved to the blanking longitudinal moving assembly.

As shown in fig. 1 to 16, in the biochemical analyzer of the present embodiment, the first power module includes a guide slot 134, a straight pushing block 135 and a first driving component; the guide groove 134 is formed in the first fixing plate 131; and the guide groove 134 is arranged in parallel with the guide convex rail 133; the feeding area 112 is arranged at one end of the guide groove 134; the traversing assembly 14 is arranged at the other end of the guide groove 134; the straight push block 135 is slidably connected with the guide groove 134; the top of the straight push block 135 abuts against the bottom of the test tube rack 11; the first driving part is arranged below the first fixing plate 131; the output end of the first driving part is fixedly connected with the straight pushing block 135.

Specifically, the position of the feeding area 112 is set at the beginning of the guide groove 134; the position of the traversing assembly 14 is arranged at the ending end of the guide groove 134; the test tube rack 11 is placed in front of the loading area 112, and the top of the straight push block 135 is located at the beginning of the guide groove 134, which is the initial position of the straight push block 135; after the test tube rack 11 is placed in the feeding area 112, the first driving part drives the straight pushing block 135 to move along the guide groove 134 until the top of the straight pushing block 135 abuts against the bottom of the test tube rack 11; the first driving member then continues to drive the straight pushing block 135, so that the test tube rack 11 reaches the position of the traverse assembly 14.

The first driving component comprises a first slide rail 136, a first slide block 137, a first belt 138, a first driving wheel, a first driven wheel 139 and a first direct-push driving component 130; the first slide rail 136 is connected with the first slide block 137 in a sliding manner; the first sliding block 137 is fixedly connected with a first belt 138; two ends of the first belt 138 are respectively sleeved on the first driving wheel and the first driven wheel 139; the output end of the first direct-push driving component 130 is connected with the first driving wheel; the straight push block 135 is fixedly arranged at the top of the first slide block 137; the first slide rail 136 is disposed below the first fixing plate 131.

Specifically, the first straight pushing driving element 130 may enable the motor, when the straight pushing block 135 needs to be pushed, only the corresponding first straight pushing driving element 130 needs to be started to enable the first driving wheel to rotate, so as to drive the first belt 138 to rotate, and the first sliding block 137 connected with the first belt 138 will move along with the first belt 138, so as to enable the straight pushing block 135 connected therewith to move; when the straight pushing block 135 needs to be moved to the initial position, only the first straight pushing driving member 130 needs to drive the first driving wheel to rotate reversely.

The second driving component comprises a second slide rail (not shown), a second slider 1462, a second belt 1463, a second driving wheel 1464, a second driven wheel 1465 and a second direct-push driving component 1466; the second slide rail is connected with the second slide block 1462 in a sliding manner; the second sliding block 1462 is fixedly connected with a second belt 1463; two ends of the second belt 1463 are respectively sleeved on the second driving wheel 1464 and the second driven wheel 1465; the output end of the second direct-push driving member 1466 is connected with the second driving wheel 1464; the elastic component is fixedly arranged at the top of the second sliding block 1462; the second slide rail is disposed below the second fixing plate 141.

Specifically, the second slider 1462 is fixedly connected with the connecting block 1453 in the telescopic member; the second direct-pushing driving member 1466 may be a motor, when the pushing protrusion 143 needs to be pushed, only the corresponding second direct-pushing driving member 1466 needs to be started to rotate the second driving wheel 1464, so as to drive the second belt 1463 to rotate, and the second slider 1462 connected to the second belt 1463 will move along with the second belt 1463, so as to move the pushing protrusion 143 on the elastic component connected to the second slider; when the pushing projection 143 needs to be moved to the initial position, the second direct pushing driving member 1466 is only required to drive the second driving wheel 1464 to rotate reversely.

As shown in fig. 1 to 16, in a biochemical analyzer according to the present embodiment, the sample transfer mechanism further includes a visual scanning device 15 for scanning a bar code of a test tube; the vision scanning device 15 is fixedly connected with the machine frame 10; the vision scanning device 15 is arranged at the material taking area 113;

the blanking unit comprises a blanking longitudinal movement assembly which enables the test tube rack 11 to move longitudinally; the blanking longitudinal moving assembly comprises a third fixing plate 161, a blanking groove 162 arranged on one side of the test tube rack 11 and a blanking guide rail 163 arranged on one side of the third fixing plate 161; the test tube rack 11 is slidably connected with the blanking guide rail 163 through the blanking groove 162; the blanking longitudinal moving assembly further comprises a third power module 164 which enables the test tube rack 11 to move along the blanking guide rail 163; the blanking region 114 is disposed at one end of the third fixing plate 161; the traverse assembly 14 is provided at the other end of the third fixing plate 161.

Specifically, after the material taking process is completed, when the material taking device is driven by the traverse moving device 14 to the blanking longitudinal moving device, the blanking groove 162 on the test tube rack 11 is simultaneously clamped into the blanking guide rail 163, so that the advancing direction of the test tube rack 11 can be controlled when the test tube rack 11 is moved; at this time, the third power module 164 operates, and the output end of the third power module 164 pushes the material test tube rack 11 to move along the blanking guide rail 163 until the blanking area 114 on the other side of the third fixing plate 161 is reached.

As shown in fig. 1 to 16, in the biochemical analyzer according to the present embodiment, the reaction rotating device includes a disk spindle 231, a connecting disk 232, a disk speed reducing assembly 233, and a disk rotation driving member 234; the bottom of the disc main shaft 231 is rotatably connected with the frame 10; the connecting disc 232 is arranged at the top of the disc main shaft 231; the reaction disc 221 is fixedly connected with the connecting disc 232; the disc rotating driving member 234 is fixedly arranged on the frame 10; the output end of the disc rotation driving member 234 is connected with the disc spindle 231 through the disc speed reducing assembly 233;

specifically, the disc rotation drive 234 may be a motor; the disc speed reduction assembly 233 may be one or more gear sets each having a speed reduction function; when the reaction disc 221 needs to be rotated, the disc rotation driving member 234 only needs to be output in the forward direction, and the reaction disc 221 can be rotated by a proper angle under the action of the speed reduction assembly, so as to drive the reaction cup 222 to correspondingly move to the next station; by using the disc speed reduction assembly 233, the rotation is stable and the rotation angle can be adjusted.

The stirring device 24 comprises a stirring head 241 for stirring the sample in the reaction cup 222, a stirring driving member 242 for driving the stirring head 241 to rotate, a stirring lifting component for lifting the stirring driving member 242, a third cleaning component 243 for containing a cleaning solution, and a first swinging component for moving the stirring head 241 between the reaction disc 221 and the third cleaning component 243; the stirring lifting assembly is arranged on the frame 10; the output end of the stirring lifting assembly is connected with the first swinging assembly; the output end of the first swing assembly is connected with the stirring driving member 242; the third cleaning assembly 243 is arranged at one side of the reaction disc 221;

specifically, the rotary stirring drive 242 may be a micro motor; when the reaction cup 222 reaches the stirring device 24, the first swinging component rotates the position of the stirring driving component 242 to drive the stirring head 241 to move, when the stirring head 241 moves to the position right above the reaction cup 222, the first swinging component stops working, the stirring lifting component enables the position of the first swinging component to descend, so that the bottom end of the stirring head 241 falls into the reaction cup 222, then the stirring driving component 242 enables the stirring head 241 to stir the solution in the reaction cup 222, and the effect of enabling the solution to fully react is achieved; similarly, under the combined action of the stirring lifting component and the first swinging component, the stirring head 241 can be moved away from the reaction cup 222 to the position of the third cleaning component 243, the third cleaning component 243 is filled with the cleaning liquid for cleaning the stirring head 241, and the stirring head 241 rotates again, so that the cleaning process of the stirring head 241 is accelerated.

The cleaning device 26 includes a cleaning head member 264, a cleaning fixing plate 261, a cleaning elevating plate 262 slidably connected to the cleaning fixing plate 261, and a cleaning elevating driving member 263 for sliding the cleaning elevating plate 262 on the cleaning fixing plate 261; the cleaning fixing plate 261 is fixedly connected with the frame 10; the cleaning lifting driving part 263 is fixedly arranged on the cleaning fixing plate 261; the cleaning head part 264 is installed on the top of the cleaning lifting plate 262; the cleaning head 264 is disposed right above the reaction cup 222;

specifically, when the position of the cleaning head member 264 is required to be lifted, the cleaning lifting plate 262 is lifted or lowered on the cleaning fixing plate 261 correspondingly only by extending or retracting the output end of the cleaning lifting driving member 263 correspondingly; thereby achieving the effect of elevating the position of the cleaning head part 264.

The optical detection device 25 includes a light source emitting portion 251 and a light source receiving portion 252; the light source emitting part 251 and the light source receiving part 252 are arranged oppositely; the light source emitting part 251 and the light source receiving part 252 are both fixedly connected with the frame 10; a first groove 253 for the reaction cup 222 to pass through is arranged between the light source emitting part 251 and the light source receiving part 252; when the reaction disk 221 rotates, the reaction cups 222 are driven to enter the first grooves 253 one by one.

By arranging the first groove 253 and matching with the rotation of the reaction disc 221, the optical detection of the reaction result of each reaction cup 222 can be realized, the reaction cups 222 do not need to be manually detached from the reaction disc 221, and the automation degree is high; the light source receiving unit 252 is used for collecting and processing image information to obtain a detection result.

As shown in fig. 1 to 16, in the biochemical analyzer according to the embodiment, the first swinging member includes a stirring rotating shaft 244, a stirring decelerating member 245, and a stirring motor; the output end of the stirring motor is connected with the stirring rotating shaft 244 through the stirring speed reducing component 245; the stirring driving member 242 is mounted on the stirring rotating shaft 244; the stirring lifting assembly comprises a stirring fixing plate 246, a stirring lifting plate slidably connected with the stirring fixing plate 246 and a stirring lifting driving part 248 for making the stirring lifting plate slide on the stirring fixing plate 246; the stirring fixing plate 246 is fixedly connected with the frame 10; the stirring lifting driving component 248 is fixedly arranged on the stirring fixing plate 246; the first swing assembly is arranged at the top of the stirring lifting plate.

Specifically, the stirring speed reducing assembly 245 can be one or more gear sets with speed reducing function; when the stirring head 241 needs to be swung, the stirring motor only needs to be driven to output positively, and the stirring rotating shaft 244 can be rotated by a proper angle under the action of the speed reducing assembly, so that the stirring driving piece 242 correspondingly swings, and the stirring head 241 is moved to the third cleaning assembly 243 or the reaction cup 222; when the position of the stirring head 241 needs to be lifted, the stirring lifting plate will correspondingly lift or descend on the stirring fixing plate 246 only by correspondingly extending or retracting the output end of the stirring lifting driving part 248; thereby achieving the effect of lifting the position of the stirring head 241.

The cleaning head part 264 comprises a mounting frame 265 and a plurality of groups of cleaning needle groups arranged on the mounting frame 265; the mounting bracket 265 is connected with the cleaning lifting plate 262; each cleaning needle group comprises a water inlet cleaning needle 266 for injecting cleaning liquid into the reaction cup 222 and a water outlet cleaning needle 267 for sucking samples in the reaction cup 222; the water inlet cleaning needle 266 and the water outlet cleaning needle 267 are arranged side by side;

specifically, the water inlet cleaning needle 266 is connected to the cleaning liquid via a water pump; the water outlet cleaning needle 267 is connected with the waste liquid pool through a negative pressure water pump; when the cleaning elevating plate 262 descends, the inlet cleaning pins 266 and the outlet cleaning pins 267 fall into the reaction cup 222 at the same time, and by controlling the inlet time, the inlet amount, the water absorption time and the water absorption amount, the solution in the reaction cup 222 can be ensured to be discharged into the waste liquid pool and the reaction cup 222 can be ensured to be cleaned.

A plurality of accommodating grooves 223 for accommodating the reaction cups 222 are formed on the reaction disc 221; each accommodating groove 223 is provided with a spring sheet (not shown) for clamping the reaction cup 222; the reaction cup 222 is detachably connected with the accommodating groove 223 through the elastic sheet.

In the reaction process, individual reaction cups 222 may need to be replaced, and by arranging the elastic pieces, the reaction cups 222 can be firmly clamped in the accommodating grooves 223, and the reaction cups 222 can be conveniently detached.

As shown in fig. 1 to 16, in the biochemical analyzer according to this embodiment, the reagent loading unit includes a reagent suction head 37 for sucking a reagent in a reagent cartridge 313, and a first cleaning unit 35 for cleaning the reagent suction head 37; the reagent feeding device also comprises a reagent feeding assembly 33 for enabling the reagent suction head 37 to move among the detection mechanism, the reagent cylinder 312 and the first cleaning assembly 35; the first cleaning assembly 35, the reagent rotating device and the reagent feeding assembly 33 are all arranged on the rack 10.

Specifically, a reagent feeding point is arranged on the reagent cylinder 312, the initial position of the reagent suction head 37 is arranged above the reagent box 313, namely the position of the reagent feeding point, when reagent needs to be added into the detection mechanism, the reagent feeding assembly 33 is started to enable the reagent suction head 37 to descend into the reagent box 313, and then the reagent suction head 37 sucks the reagent in the reagent box 313; then the reagent feeding assembly 33 raises the reagent suction head 37 and moves it to the upper part of the detection mechanism, and then the reagent suction head 37 drops the reagent into the detection mechanism; then the detection mechanism starts a detection process; for the residual reagent on the reagent suction head 37, the reagent feeding assembly 33 enables the reagent suction head 37 to leave the detection mechanism, and the reagent suction head 37 arrives at the first cleaning assembly 35 for cleaning, and the cleaned reagent suction head 37 returns to the position of the reagent feeding point to wait for the next reagent feeding.

As shown in fig. 1 to 16, in the biochemical analyzer according to this embodiment, the reagent rotating device includes a cylinder rotating shaft 321, a connecting cover 322, a cylinder decelerating assembly 323, and a cylinder rotating driving member 324; the bottom of the cylinder rotating shaft 321 is rotatably connected with the frame 10; the connection cap 322 is installed on the top of the cylinder rotation shaft 321; the reagent cylinder 312 is fixedly connected with the connecting cover 322; the cylinder rotation driving member 324 is fixedly arranged on the frame 10; the output end of the drum rotation driving member 324 is connected to the drum rotation shaft 321 through the drum deceleration assembly 323;

specifically, the cylinder rotation drive 324 may be a motor; the cylinder speed reduction assembly 323 can be one or more gear sets each having speed reduction function; when the reagent cylinder 312 needs to be rotated, the reagent cylinder 312 can be rotated by a proper angle only by enabling the cylinder rotation driving member 324 to output in the positive direction and under the action of the cylinder speed reducing assembly 323, so that the reagent box 313 is driven to move correspondingly until the reagent box 313 required by detection moves to a reagent feeding point; by using the cylinder speed reducing assembly 323, the rotation is stable, and the rotation angle can be adjusted and controlled.

The reagent feeding assembly 33 includes a reagent swing member for lifting the reagent suction head 37 and a reagent swing member for swinging the reagent suction head 37 to the left and right; the reagent swinging component is arranged on the frame 10; the output end of the reagent swinging component is connected with the reagent swinging component; the output end of the reagent swinging component is connected with the reagent suction head 37;

specifically, the reagent swinging part drives the reagent sucking head 37 to move by rotating the position of the reagent sucking head 37, when the reagent sucking head 37 moves to a position right above a reagent feeding point, the reagent swinging part stops working, the reagent swinging part lowers the position of the reagent swinging part, so that a feeding port of the reagent sucking head 37 falls into the reagent box 313, and then the reagent sucking head 37 sucks materials; similarly, under the combined action of the reagent swinging part and the reagent swinging part, the reagent suction head 37 can move away from the reagent box 313 to the position of the first cleaning component 35, a cleaning solution for cleaning a feeding port of the reagent suction head 37 is contained in the first cleaning component 35, and the reagent suction head 37 achieves the cleaning purpose by handling the cleaning solution.

The reagent swing part comprises a swing rotating shaft 334, a reagent speed reducer 335 and a swing motor 336; the output end of the swing motor 336 is connected with the swing rotating shaft 334 through the reagent speed reducer 335; the reagent sucking head 37 is mounted on the swing rotating shaft 334; the reagent swinging component comprises a lifting fixed plate 337, a lifting movable plate slidably connected with the lifting fixed plate 337, and a swinging lifting driving member 338 for making the lifting movable plate slide on the lifting fixed plate 337; the lifting fixing plate 337 is fixedly connected with the frame 10; the swinging lifting driving member 338 is fixedly arranged on the lifting fixing plate 337; the reagent swinging component is arranged at the top of the lifting movable plate;

specifically, the reagent reducer 335 may be one or more gear sets each having a reduction function; when the reagent suction head 37 is needed, the swinging motor 336 is only required to output in the positive direction, and the swinging rotating shaft 334 can rotate by a proper angle under the action of the reagent speed reducer 335, so that the reagent speed reducer 335 is driven to move correspondingly, and further move to the upper part of the first cleaning component 35 or the reagent box 313; when the position of the reagent sucking head 37 needs to be lifted, the lifting movable plate (not shown) will correspondingly lift or descend on the lifting fixed plate 337 only by correspondingly extending or retracting the output end of the swing lifting driving member 338; thereby achieving the effect of changing the position of the reagent suction head 37.

The bottom of the reagent cylinder 312 is provided with a refrigerating device 34 for reducing the temperature in the reagent cylinder 312; the reagent cylinder 312 includes an outer cylinder 341 and an inner cylinder 342; an insulating layer is formed between the outer cylinder 341 and the inner cylinder 342; the reagent box 313 is arranged in the inner barrel 342; the output end of the refrigerating device 34 is connected with the inside of the inner barrel 342;

by providing the refrigerating device 34, cold air can be supplied to the inner cylinder 342, which facilitates the storage of the reagent in the reagent cartridge 313.

The reagent boxes 313 are uniformly distributed in the inner barrel 342 around the axis of the inner barrel 342;

through the above arrangement, it can be ensured that each reagent cartridge 313 can be rotated to the reagent feeding point.

The first cleaning assembly 35 comprises a first cleaning pool 351, a first cup clamp 352, a first water inlet 353 for adding cleaning liquid and a first water outlet 354 for discharging waste liquid in the first cleaning pool 351; the first cleaning tank 351 is fixedly connected with the frame 10 through the first cup clamp 352; the first water inlet 353 and the first water outlet 354 are both communicated with the first cleaning pool 351.

Specifically, the first water inlet 353 is communicated with the cleaning liquid through a water pump; the first water discharge port 354 is communicated with the waste liquid pool through a negative pressure water pump; when the reagent suction head 37 needs to be cleaned, cleaning liquid is added into the first cleaning pool 351, then the reagent suction head 37 performs primary cleaning through handling the cleaning liquid, then the first water discharge port 354 discharges waste liquid in the first cleaning pool 351, then the first water inlet 353 injects the cleaning liquid into the first cleaning pool 351 again, and the operation is repeated until the reagent suction head 37 is cleaned.

The structure of the second cleaning unit 362 and the structure of the third cleaning unit 243 are identical to those of the first cleaning unit 35.

As shown in fig. 1 to 16, the biochemical analyzer according to the present embodiment further includes a sample sucking device 36 for feeding the sample in the test tube to the detecting mechanism; the sample suction device 36 includes a second cleaning assembly 362, a sample suction head assembly 363, a suction head lifting assembly 364 for lifting the sample suction head assembly 363, and a suction head swing assembly 365 for swinging the sample suction head assembly 363 left and right; the suction head lifting assembly 364 is mounted on the frame 10; the output end of the suction head lifting assembly 364 is connected with the suction head swing assembly 365; the output end of the suction head swing assembly 365 is connected with the sample suction head assembly 363.

In use, the structure of the reagent feeding assembly 33 is the same as that of the sample sucking device 36, specifically, the sucking head swinging assembly 365 rotates the position of the sample sucking head assembly 363 to drive the sample sucking head assembly 363 to move, when the sample sucking head assembly 363 moves right above the sample feeding point, the sucking head swinging assembly 365 stops working, the sucking head lifting assembly 364 lowers the position of the sucking head swinging assembly 365, so that the feeding port of the sample sucking head assembly 363 falls into a sample in a test tube, and then the sample sucking head assembly 363 sucks materials; similarly, under the combined action of the suction head swing assembly 365 and the suction head lifting assembly 364, the sample suction head assembly 363 can move away from the detection mechanism to the position of the second cleaning assembly 362, the second cleaning assembly 362 is filled with a cleaning solution for cleaning the feeding port of the sample suction head assembly 363, and the sample suction head assembly 363 can achieve the cleaning purpose by handling the cleaning solution.

The above is only a preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the protection scope of the present invention.

Claims (10)

1. A biochemical analyzer, comprising: the device comprises a rack (10), a detection mechanism for detecting a sample, a sample conveying mechanism for loading the sample onto the detection mechanism, and an upper reagent mechanism for adding a reaction reagent into the detection mechanism;

the sample conveying mechanism comprises a test tube rack (11), a conveying rack, a feeding area (112) for feeding, a material taking area (113) for the detection mechanism to absorb materials in the test tube, a discharging area (114) for discharging and a material moving device for moving the test tube rack (11); the feeding area (112), the blanking area (114), the material taking area (113) and the material moving device are all arranged on the rack (10);

the upper reagent mechanism comprises a reagent cylinder (312) which is rotationally connected with the rack (10), a plurality of reagent boxes (313) which are arranged on the reagent cylinder (312), a reagent rotating device which enables the reagent cylinder (312) to rotate, and an upper reagent device which is used for feeding the reagents in the reagent boxes (313) to the detection mechanism;

the detection mechanism comprises a reaction disc (221) rotationally connected with the rack (10), a plurality of reaction cups (222) arranged on the reaction disc (221), a reaction rotating device for enabling the reaction disc (221) to rotate, a stirring device (24) for stirring samples in the reaction cups (222), an optical detection device (25) for detecting the samples stirred by the stirring device (24) and a cleaning device (26) for cleaning the reaction cups (222);

the rotating device, the stirring device (24), the optical detection device (25) and the cleaning device (26) are all arranged on the rack (10).

2. The biochemical analyzer as set forth in claim 1, wherein: the material moving device comprises a feeding unit and a discharging unit, wherein the feeding unit enables the test tube rack (11) to move from a feeding area (112) to a feeding opening of a material taking area (113), and the discharging unit enables the test tube rack (11) to move from a discharging opening of the material taking area (113) to a discharging area (114); the material moving device further comprises a transverse moving assembly (14) which is used for enabling the test tube rack (11) to move from a material inlet of the material taking area (113) to a material outlet of the material taking area (113).

3. The biochemical analyzer as set forth in claim 2, wherein:

the feeding unit comprises a feeding longitudinal moving assembly which enables the test tube rack (11) to move longitudinally; the feeding longitudinal moving assembly comprises a first fixing plate (131) arranged on the rack (10), a guide groove (132) arranged on one side of the test tube rack (11) and a guide convex rail (133) arranged on one side of the first fixing plate (131); the test tube rack (11) is connected with the guide convex rail (133) in a sliding way through the guide groove (132); the feeding longitudinal moving assembly further comprises a first power module which enables the test tube rack (11) to move along the guide convex rail (133); the feeding area (112) is arranged on one end of the first fixing plate (131); the transverse moving assembly (14) is arranged at the other end of the first fixing plate (131);

the transverse moving assembly (14) comprises a second fixing plate (141), a transverse groove (142) formed in the second fixing plate (141), a pushing lug (143) arranged in the transverse groove (142), an elastic component enabling the pushing lug (143) to stretch in the transverse groove (142), and a second driving component enabling the pushing lug (143) to move left and right in the transverse groove (142); the pushing lug (143) is arranged on the second driving part through the elastic shrinkage part; the elastic and telescopic part and the second driving part are arranged below the second fixing plate (141); the bottom of the test tube rack (11) is provided with a material pushing groove (144) which is clamped with the material pushing lug (143);

the elastic shrinkage component comprises a torsion spring (1451), a hinge shaft (1452), a connecting block (1453) and a limiting block (1454) for limiting the rotation angle of the material pushing lug (143); the hinged shaft (1452) and the limiting block (1454) are arranged on the connecting block (1453); the connecting block (1453) is connected with the output end of the second driving component; the pushing lug (143) is hinged with the connecting block (1453) through the hinge shaft (1452); the torsional spring (1451) is sleeved on the hinged shaft (1452); one end of the torsion spring (1451) is fixedly connected with the connecting block (1453); the other end of the torsion spring (1451) is fixedly connected with the pushing lug (143).

4. The biochemical analyzer according to claim 3, wherein:

the first power module comprises a guide groove (134), a straight push block (135) and a first driving part; the guide groove (134) is arranged on the first fixing plate (131); the guide groove (134) and the guide convex rail (133) are arranged in parallel; the feeding area (112) is arranged at one end of the guide groove (134); the traversing component (14) is arranged at the other end of the guide groove (134); the straight push block (135) is connected with the guide groove (134) in a sliding manner; the top of the straight push block (135) abuts against the bottom of the test tube rack (11); the first driving part is arranged below the first fixing plate (131); the output end of the first driving part is fixedly connected with the straight push block (135);

the first driving part comprises a first sliding rail (136), a first sliding block (137), a first belt (138), a first driving wheel, a first driven wheel (139) and a first push driving part (130); the first sliding rail (136) is connected with the first sliding block (137) in a sliding manner; the first sliding block (137) is fixedly connected with a first belt (138); two ends of the first belt (138) are respectively sleeved on the first driving wheel and the first driven wheel (139); the output end of the first direct-push driving piece (130) is connected with the first driving wheel; the straight push block (135) is fixedly arranged at the top of the first sliding block (137); the first sliding rail (136) is arranged below the first fixing plate (131);

the second driving component comprises a second sliding rail, a second sliding block (1462), a second belt (1463), a second driving wheel (1464), a second driven wheel (1465) and a second direct-pushing driving component (1466); the second sliding rail is in sliding connection with the second sliding block (1462); the second sliding block (1462) is fixedly connected with a second belt (1463); two ends of the second belt (1463) are respectively sleeved on the second driving wheel (1464) and the second driven wheel (1465); the output end of the second direct-pushing driving part (1466) is connected with the second driving wheel (1464); the elastic component is fixedly arranged at the top of the second sliding block (1462); the second slide rail is arranged below the second fixing plate (141).

5. The biochemical analyzer as set forth in claim 2, wherein:

the sample transfer mechanism further comprises a visual scanning device (15) for scanning the test tube barcode; the visual scanning equipment (15) is fixedly connected with the rack (10); the vision scanning equipment (15) is arranged at the material taking area (113);

the blanking unit comprises a blanking longitudinal movement assembly which enables the test tube rack (11) to move longitudinally; the blanking longitudinal moving assembly comprises a third fixing plate (161), a blanking groove (162) arranged on one side of the test tube rack (11) and a blanking guide rail (163) arranged on one side of the third fixing plate (161); the test tube rack (11) is in sliding connection with the blanking guide rail (163) through the blanking groove (162); the blanking longitudinal moving assembly further comprises a third power module (164) which enables the test tube rack (11) to move along the blanking guide rail (163); the blanking area (114) is arranged at one end of the third fixing plate (161); the traversing component (14) is arranged at the other end of the third fixing plate (161).

6. The biochemical analyzer as set forth in claim 1, wherein:

the reaction rotating device comprises a disc main shaft (231), a connecting disc (232), a disc speed reducing assembly (233) and a disc rotating driving piece (234); the bottom of the disc main shaft (231) is rotationally connected with the rack (10); the connecting disc (232) is arranged at the top of the disc main shaft (231); the reaction disc (221) is fixedly connected with the connecting disc (232); the disc rotating driving piece (234) is fixedly arranged on the rack (10); the output end of the disc rotating driving piece (234) is connected with the disc spindle (231) through the disc speed reducing assembly (233);

the stirring device (24) comprises a stirring head (241) for stirring the sample in the reaction cup (222), a stirring driving piece (242) for driving the stirring head (241) to rotate, a stirring lifting component for lifting the stirring driving piece (242), a third cleaning component (243) for containing cleaning liquid, and a first swinging component for enabling the stirring head (241) to move between the reaction disc (221) and the third cleaning component (243); the stirring lifting component is arranged on the rack (10); the output end of the stirring lifting assembly is connected with the first swinging assembly; the output end of the first swinging assembly is connected with the stirring driving piece (242); the third cleaning assembly (243) is arranged on one side of the reaction disc (221);

the cleaning device (26) comprises a cleaning head component (264), a cleaning fixing plate (261), a cleaning lifting plate (262) connected with the cleaning fixing plate (261) in a sliding way, and a cleaning lifting driving component (263) used for enabling the cleaning lifting plate (262) to slide on the cleaning fixing plate (261); the cleaning fixing plate (261) is fixedly connected with the rack (10); the cleaning lifting driving part (263) is fixedly arranged on the cleaning fixing plate (261); the cleaning head component (264) is arranged at the top of the cleaning lifting plate (262); the cleaning head part (264) is arranged right above the reaction cup (222);

the optical detection device (25) comprises a light source emitting part (251) and a light source receiving part (252); the light source emitting part (251) and the light source receiving part (252) are arranged oppositely; the light source emitting part (251) and the light source receiving part (252) are both fixedly connected with the frame (10); a first groove (253) for the reaction cup (222) to pass through is arranged between the light source emitting part (251) and the light source receiving part (252); when the reaction disc (221) rotates, the reaction cups (222) are driven to enter the first grooves (253) one by one.

7. The biochemical analyzer as set forth in claim 6, wherein:

the first swinging component comprises a stirring rotating shaft (244), a stirring speed reducing component (245) and a stirring motor; the output end of the stirring motor is connected with the stirring rotating shaft (244) through the stirring speed reducing component (245); the stirring driving piece (242) is arranged on the stirring rotating shaft (244); the stirring lifting assembly comprises a stirring fixing plate (246), a stirring lifting plate connected with the stirring fixing plate (246) in a sliding way, and a stirring lifting driving part (248) used for enabling the stirring lifting plate to slide on the stirring fixing plate (246); the stirring fixing plate (246) is fixedly connected with the frame (10); the stirring lifting driving part (248) is fixedly arranged on the stirring fixing plate (246); the first swinging assembly is arranged at the top of the stirring lifting plate;

the head cleaning component (264) comprises a mounting frame (265) and a plurality of groups of cleaning needle groups arranged on the mounting frame (265); the mounting frame (265) is connected with the cleaning lifting plate (262); each group of cleaning needle groups comprises a water inlet cleaning needle (266) used for injecting cleaning liquid into the reaction cup (222) and a water outlet cleaning needle (267) used for sucking a sample in the reaction cup (222); the water inlet cleaning needle (266) and the water outlet cleaning needle (267) are arranged side by side;

a plurality of accommodating grooves (223) for accommodating reaction cups (222) are formed in the reaction disc (221); each accommodating groove (223) is internally provided with an elastic sheet for clamping the reaction cup (222); the reaction cup (222) is detachably connected with the accommodating groove (223) through the elastic sheet.

8. The biochemical analyzer as set forth in claim 1, wherein:

the upper reagent device comprises a reagent suction head (37) for sucking the reagent in the reagent box (313) and a first cleaning component (35) for cleaning the reagent suction head (37); the reagent feeding device also comprises a reagent feeding assembly (33) used for enabling the reagent suction head (37) to move among the detection mechanism, the reagent cylinder (312) and the first cleaning assembly (35); the first cleaning assembly (35), the reagent rotating device and the reagent feeding assembly (33) are arranged on the rack (10).

9. The biochemical analyzer according to claim 8, wherein: the reagent rotating device comprises a cylinder rotating shaft (321), a connecting cover (322), a cylinder speed reducing assembly (323) and a cylinder rotating driving piece (324); the bottom of the cylinder rotating shaft (321) is rotatably connected with the rack (10); the connecting cover (322) is arranged at the top of the cylinder rotating shaft (321); the reagent cylinder (312) is fixedly connected with the connecting cover (322); the cylinder rotating driving piece (324) is fixedly arranged on the rack (10); the output end of the cylinder rotation driving piece (324) is connected with the cylinder rotation shaft (321) through the cylinder speed reducing assembly (323);

the reagent feeding assembly (33) comprises a reagent swinging component for enabling the reagent suction head (37) to ascend and descend and a reagent swinging component for enabling the reagent suction head (37) to swing left and right; the reagent swinging component is arranged on the frame (10); the output end of the reagent swinging component is connected with the reagent swinging component; the output end of the reagent swinging component is connected with the reagent suction head (37);

the reagent swinging component comprises a swinging rotating shaft (334), a reagent speed reducer (335) and a swinging motor (336); the output end of the swing motor (336) is connected with the swing rotating shaft (334) through the reagent speed reducer (335); the reagent suction head (37) is arranged on the swinging rotating shaft (334); the reagent swinging part comprises a lifting fixed plate (337), a lifting movable plate connected with the lifting fixed plate (337) in a sliding manner, and a swinging lifting driving part (338) used for enabling the lifting movable plate to slide on the lifting fixed plate (337); the lifting fixing plate (337) is fixedly connected with the rack (10); the swinging lifting driving piece (338) is fixedly arranged on the lifting fixing plate (337); the reagent swinging component is arranged at the top of the lifting movable plate; the bottom of the reagent cylinder (312) is provided with a refrigerating device (34) for reducing the temperature in the reagent cylinder (312); the reagent cylinder (312) comprises an outer cylinder (341) and an inner cylinder (342); an insulating layer is formed between the outer cylinder (341) and the inner cylinder (342); the reagent box (313) is arranged in the inner barrel (342); the output end of the refrigerating device (34) is connected with the inside of the inner barrel (342);

the reagent boxes (313) are uniformly distributed in the inner barrel (342) around the axis of the inner barrel (342);

the first cleaning assembly (35) comprises a first cleaning pool (351), a first cup clamp (352), a first water inlet (353) for adding cleaning liquid and a first water outlet (354) for discharging waste liquid in the first cleaning pool (351); the first cleaning pool (351) is fixedly connected with the frame (10) through the first cup clamp (352); the first water inlet (353) and the first water outlet (354) are communicated with the first cleaning pool (351).

10. The biochemical analyzer as set forth in claim 1, wherein:

the biochemical analyzer also comprises a sample sucking device (36) for feeding the sample in the test tube to the detection mechanism; the sample suction device (36) comprises a second cleaning component (362), a sample suction head component (363), a suction head lifting component (364) for lifting the sample suction head component (363), and a suction head swinging component (365) for swinging the sample suction head component (363) left and right; the material suction head lifting assembly (364) is arranged on the frame (10); the output end of the suction head lifting assembly (364) is connected with the suction head swinging assembly (365); the output end of the suction head swing assembly (365) is connected with the sample suction head assembly (363).

Images