CN217688990U

CN217688990U - Full-automatic biochemical analyzer

Info

Publication number: CN217688990U
Application number: CN202221436403.7U
Authority: CN
Inventors: 张建; 陈邦奇; 何永川; 夏潮; 苏娜; 林�源; 郭建娟
Original assignee: Sichuan Xinjian Kangcheng Biological Co ltd
Current assignee: Sichuan Xinjian Kangcheng Biological Co ltd
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2022-10-28
Anticipated expiration: 2032-06-09

Abstract

The utility model discloses a full-automatic biochemical analyzer is provided with reagent refrigerating system, reaction cup bearing system, wiper mechanism and application of sample rabbling mechanism on the brace table, and application of sample rabbling mechanism can carry out application of sample or stirring to reagent refrigerating system and reaction cup bearing system respectively. The utility model is recombined through the structural system, so that the manufacturing process becomes simple, the maintenance is convenient, and the overall cost is reduced; the direct-attached pot body is adopted for refrigeration, the structure is simple, the occupied instrument space is small, the cold surface of the semiconductor refrigeration piece is directly attached to the pot body for refrigeration, and the refrigeration time of the device is short; the pick-and-place is convenient, the installation and maintenance are convenient, the cost is low, and the precision is high; the motor is adopted to rotate to drive the guide shaft to reciprocate, and the power-off protection is realized through the spring, so that the reliability is high; rolling is used for replacing sliding, so that the running process is more stable, and the service life is prolonged; the rolling rotation of the mechanism is realized through the rotation of the bearing inner ring, and the rotation angle can be increased through optimizing the size of the connecting piece.

Description

Full-automatic biochemical analyzer

Technical Field

The utility model relates to a biochemical analysis technical field specifically is a full-automatic biochemical analyzer.

Background

The discrete full-automatic biochemical analyzer is a type of biochemical analysis product which is most widely applied at present, and a series of processes of sample adding, reagent adding, uniform mixing, photometry, cleaning and the like of a sample need to be realized. The instrument generally comprises a sample tray, a reagent tray, a reaction tray, a sample adding and stirring structure, a cleaning structure, a liquid path system and other system components, and different structures need to realize the flow according to fixed actions and layout. The full-automatic biochemical analyzer on the market has the advantages of complex structure, high processing difficulty, high production cost and difficult maintenance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the problem that proposes in the above-mentioned background art, provide a full-automatic biochemical analyzer, this biochemical analyzer manufacturing process is simple, maintains easy maintenance, and the overall cost is low.

The purpose of the utility model is realized mainly through the following technical scheme:

full-automatic biochemical analysis appearance, including a supporting bench, be provided with reagent refrigerating system, reaction cup bearing system, wiper mechanism and application of sample rabbling mechanism on the supporting bench, wherein wiper mechanism is close to reaction cup bearing system, and application of sample rabbling mechanism can carry out application of sample or stirring to reagent refrigerating system and reaction cup bearing system respectively. The structure on the full-automatic biochemical analyzer that appears on the market at present is complicated, and the processing degree of difficulty is big, and manufacturing cost is high, and it is difficult to maintain, and this scheme recombines through structural system for manufacturing process becomes simple, is convenient for maintain the maintenance, and overall cost reduces moreover.

Further, the reagent refrigerating system comprises a reagent refrigerating pot body, a semiconductor refrigerating sheet and a heat dissipation module, the reagent refrigerating pot body is installed on the supporting table, the semiconductor refrigerating sheet is attached to the bottom face of the reagent refrigerating pot body, and the heat dissipation module is attached to the semiconductor refrigerating sheet. The number of the semiconductor refrigerating sheets is at least three, the semiconductor refrigerating sheets are distributed on a concentric circle at the bottom of the reagent refrigerating pot body, and the distances between the adjacent semiconductor refrigerating sheets are the same; the number of the heat dissipation modules is the same as that of the semiconductor refrigeration pieces, each heat dissipation module is attached to the bottom of the corresponding semiconductor refrigeration piece, the heat dissipation modules and the semiconductor refrigeration pieces are located on the same circumference, and the distances between the adjacent heat dissipation modules are the same. The device for cooling the reagent of the existing biochemical analyzer is characterized in that the incubation time is long, the cost is high, the occupied space of the instrument is large, and the device needs to be maintained regularly, in order to solve the problems, the scheme is that the structure is simplified, a reagent cooling pot body is utilized, a plurality of semiconductor cooling plates and a plurality of radiating modules are utilized, the semiconductor cooling plates are attached to the bottom of the reagent cooling pot body, each radiating module is attached to the bottom of the corresponding semiconductor cooling plate, the contact surface of the semiconductor cooling plates and the bottom of the reagent cooling pot body is a cold surface, the attachment surfaces of the semiconductor cooling plates and the radiating modules are hot surfaces, under the power-on condition of the semiconductor cooling plates, the cold surfaces refrigerate the reagent cooling pot body, the hot surfaces radiate heat through the radiating modules, and rapid cooling is realized and the occupied space is reduced. The semiconductor refrigerating sheet and the heat radiating module are existing components, can be directly purchased in the market, are directly attached to the pot body for refrigeration, and are simple in structure, small in size and small in occupied space of instruments.

The reagent refrigerating pot body is used for refrigerating the reagent, the reagent is stored on the inner side face of the reagent refrigerating pot body, the bottom face of the reagent refrigerating pot body is attached to the semiconductor refrigerating sheet, the semiconductor refrigerating sheet is used for refrigerating the reagent refrigerating pot body directly through the cold face of the semiconductor refrigerating sheet, and the semiconductor refrigerating sheet is used for refrigerating the reagent refrigerating pot body. The heat dissipation module is used for dissipating heat of the hot surface of the semiconductor refrigeration sheet to ensure the refrigeration effect; the hot surface is realized by a refrigeration module circulating water cooling mode, and the circulating water loss can be automatically complemented by a liquid path system. Because the bottom of the reagent refrigerating pot body is circular, in order to ensure the uniform refrigeration and the efficiency, the number of the semiconductor refrigerating sheets also has requirements, at least 3 sheets are uniformly distributed on a concentric circle at the bottom of the reagent refrigerating pot body, and the reagent in the reagent refrigerating pot body realizes the uniform refrigeration. The optimal number of the refrigerating units is three, the 120-degree included angle arrangement is formed, and the refrigerating effect is optimal. In order to make the heat dissipation process more uniform, the number of the heat dissipation modules and the number of the semiconductor refrigeration pieces need to be corresponding, and each heat dissipation module is correspondingly attached to the corresponding semiconductor refrigeration piece, so that heat dissipation is realized. And the heat dissipation modules are connected with circulating water pipes. Water circulates in the circulating water pipe through a water pump, and the water pump is used for radiating heat of the hot surface of the semiconductor refrigerating sheet and ensuring the refrigerating effect.

Furthermore, the reaction cup bearing system comprises a reaction cup group, a reaction cup group loading block and a loading block supporting disk, wherein the loading block supporting disk is arranged on the supporting platform, the reaction cup group loading block is fixed on the loading block supporting disk, and the reaction cup group is fixed on the reaction cup group loading block; the reaction cup group loading block forms a concentric circle structure along the edge of the loading block supporting plate. The reaction cup group is used as a reaction container of the analyzer reagent sample. The structure of the reaction cup consists of multiple reaction cups, and the structure is specially designed. In the taking and placing process, the reaction cup group is positioned through the middle step arc surface, and then the reaction cup group is clamped through the left and right side buckles; the device is characterized in that one-time taking and placing is equivalent to a plurality of times of taking and placing of the reaction cup, the taking and placing is convenient, and the installation and maintenance are convenient; the structure is realized by opening the die, so that the cost is low and the precision is high; the positioning and clamping is accomplished without the assistance of other elements. The reaction cup group loading block is used for loading the reaction cup group. The structure adopts one-step processing molding, the processing difficulty is low, the processing precision is high, and the processing cost is low; meanwhile, the structural design of the device adopts a pin hole positioning mode to ensure the assembly precision. The loading block supporting plate is used for supporting the reaction cup group loading block, and the assembly precision of the reaction cup group loading block and the loading block of the reaction cup group is guaranteed in a pin hole positioning mode.

Further, the cleaning mechanism comprises a support frame, the support frame is installed on the support table, a guide shaft is arranged on the support frame, the guide shaft penetrates through the support frame and can move along the axis direction of the guide shaft, a cleaning needle assembly is installed at the top of the guide shaft, a moving block is fixed on the guide shaft, a driving device is installed on the support frame, the driving device is connected with a rotating block, the rotating block is connected with the moving block, and the driving device drives the rotating block to rotate so that the moving block can move along the axis direction of the guide shaft. The moving block is internally provided with a mounting groove, a bearing is arranged in the mounting groove, an outer ring of the bearing is in contact with the wall surface of the mounting groove and can move along the wall surface of the mounting groove, and an inner ring of the bearing is connected with the rotating block through a connecting shaft; the supporting frame is provided with a guide groove, the moving block is provided with a guide pin, the guide pin is inserted into the guide groove, and the guide pin moves in the guide groove when the moving block moves; the guide shaft is sleeved with a spring, and the spring is located between the moving block and the bottom surface of the inner wall of the support frame. To having among the prior art that biochemical analyzer wiper mechanism adopts linear guide to restrict the degree of freedom and guarantee positioning accuracy, positioning accuracy is poor, problem with high costs, this scheme is then through fixed mounting movable block on the guiding axle, and the movable block moves with the guiding axle, through installing drive arrangement on the support, drive arrangement and rotatory piece are connected, and rotatory piece and movable block are connected, utilize drive arrangement to drive rotatory piece and rotate and make the movable block carry out the guiding axle axis direction and remove. The driving device is used for driving the guide shaft to reciprocate, the cost is low, and the device ensures the precision of the rotating block and the moving block through processing and can improve the overall positioning precision.

Through this kind of structure, can change actuating mechanism's rotation into the vertical movement of movable block to the vertical movement that makes a round trip of drive guiding axle. The guide of the moving block during moving is realized through the guide groove, so that the moving direction of the guide shaft is always along the same straight line, and the guide groove and the guide shaft are required to be arranged in parallel.

The spring is used for outage auto-lock protection, and motion is used for gravity nature whereabouts after the outage, protects through spring compression force. The washing needle assembly is used for washing the reaction cup, and is an existing component.

A motor of the driving device is electrified to drive the rotating block to rotate, the moving block is moved up and down through interaction of the rotating block and the moving block, and the moving block drives the guide shaft and the cleaning needle assembly to achieve vertical lifting of the cleaning mechanism. When power is off, the power-off protection of the whole motion assembly is realized through the elasticity of the spring.

Furthermore, the sample adding and stirring mechanism comprises a connecting shaft and a rack, the connecting shaft penetrates through the rack, the rack is installed on the supporting table, a guide column is arranged on the rack, the guide column and the connecting shaft are connected through a connecting piece, the connecting shaft penetrates through the connecting piece and the connecting piece can slide along the axis direction of the connecting shaft, a linear bearing is arranged in the connecting piece, and the guide column penetrates through the linear bearing and the connecting piece can roll along the axis direction of the guide column. The rack comprises an upper base plate, a lower base plate and a plurality of supporting columns, the connecting pieces are located between the upper base plate and the lower base plate, through holes are formed in the upper base plate and the lower base plate, linear bearings are arranged in the through holes, the connecting shafts penetrate through the through holes of the upper base plate and the lower base plate respectively and are fixed with inner rings of the linear bearings in the through holes, and the connecting shafts can rotate around the axes of the connecting shafts. Present application of sample rabbling mechanism all directly adopts the slip to go up and down, coefficient of friction is big, influence its lifting speed and life, and the vibration is big moreover, the stationarity of whole operation process is not enough, influence follow-up reagent application of sample effect, this scheme is then through being provided with linear bearing in the connecting piece, the guiding axle passes linear bearing and connecting piece can roll along the axis direction of guiding axle, utilize the roll to replace and slide, make the operation process more steady, and the functioning speed accelerates moreover, the life extension. The frame adopts the structure, so that the assembly precision and the self rigidity are ensured. Meanwhile, the structure is simple, the processing difficulty is small, the cost is low, and the assembly and later-stage disassembly are convenient.

Furthermore, the lifting driving device comprises a lifting driving mechanism, the lifting driving mechanism is fixed with the rack, a lifting synchronous belt is sleeved on an output shaft of the lifting driving mechanism and can perform cyclic motion under the action of the lifting driving mechanism, the lifting synchronous belt is connected with the connecting piece, and the connecting piece can slide along the axis direction of the connecting shaft under the action of the lifting synchronous belt. The structural design enables the device to be simpler and more compact, and the friction coefficient is small and the service life is relatively long by replacing sliding through rolling. Meanwhile, the linear bearing replaces a shaft sleeve, and the mounting precision is higher.

Furthermore, a rotation driving device is fixed on the rack and comprises a rotation driving mechanism, the rotation driving mechanism is fixed with the upper base plate, an upper rotating table is sleeved on the upper portion of the upper base plate, the connecting shaft penetrates through the upper rotating table and is fixed with the upper rotating table, a rotation synchronous belt is sleeved on an output shaft of the rotation driving mechanism and is sleeved on the outer wall of the upper rotating table, and the upper rotating table can drive the connecting shaft to rotate around the axis direction of the rotation driving mechanism. Through the structural design, the inner ring of the bearing rotates, and the rolling rotation of the mechanism is realized. And the device has low cost, and the corner can be increased by optimizing the size of the connecting piece.

To sum up, compared with the prior art, the utility model has the following beneficial effects:

(1) The utility model is recombined through the structural system, so that the manufacturing process becomes simple, the maintenance is convenient, and the overall cost is reduced;

(2) The utility model adopts the directly laminated pot body for refrigeration, has simple structure, small volume and small occupied instrument space, adopts the semiconductor refrigeration piece to directly laminate the pot body for refrigeration, and has short refrigeration time;

(3) The pot body of the utility model does not need to process an inner cavity, is molded by opening the die, has simple structure and low cost, and has no air tightness requirement;

(4) The reaction cup bearing system of the utility model has convenient taking and placing, convenient installation and maintenance, low cost and high precision;

(5) The reaction cup bearing system has simple and practical positioning and clamping structure, does not need other elements for assistance, loads the reaction cup group into blocks for one-step processing and forming, and has low processing difficulty, high processing precision and low processing cost;

(6) The cleaning mechanism of the utility model adopts the motor to rotate to drive the guide shaft to reciprocate, has low cost, realizes power-off protection through the spring and has high reliability;

(7) The cleaning mechanism of the utility model can ensure the precision of the rotating block and the moving block by processing, can improve the overall positioning precision, is realized by a penetrating mode of the support frame and the guide shaft, and has good structural rigidity and long service life;

(8) The sample adding and stirring mechanism of the utility model replaces sliding with rolling, so that the operation process is more stable, the operation speed is accelerated, and the service life is prolonged;

(9) The frame of the sample adding and stirring mechanism adopts a rigid connection mode of the upper bottom plate, the lower bottom plate and the support column, thereby ensuring the assembly precision and the self rigidity, and simultaneously realizing the self structure, small processing difficulty, low cost, convenient assembly and later disassembly;

(10) The sample adding and stirring mechanism of the utility model is simpler and more compact, replaces sliding by rolling, has small friction coefficient and relatively longer service life, and simultaneously, the linear bearing replaces a shaft sleeve, so that the mounting precision is higher;

(11) The utility model discloses a loading rabbling mechanism bearing inner race rotates, realizes the roll rotation of mechanism, installs with low costs moreover, through optimizing connecting piece size, can increase the corner.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of a reagent refrigeration system.

FIG. 3 is a schematic diagram of a reaction cup carrying system.

Fig. 4 is a schematic structural view of the cleaning mechanism.

Fig. 5 is a schematic view of the internal structure of the cleaning mechanism.

FIG. 6 is a schematic view of the structure of the stirring mechanism for sample application.

FIG. 7 is a schematic diagram of a detailed structure of the sample-adding stirring mechanism.

The names corresponding to the reference numbers in the drawings are as follows:

1-reagent refrigeration system, 2-reaction cup bearing system, 3-cleaning mechanism, 4-sample adding stirring mechanism, 5-supporting table, 6-reagent refrigeration pot body, 7-semiconductor refrigeration piece, 8-heat dissipation module, 9-reaction cup group, 10-reaction cup group loading block, 11-loading block supporting plate, 12-cleaning needle component, 13-guide shaft, 14-supporting frame, 15-moving block, 16-rotating block, 17-driving device, 18-spring, 19-rotary driving device, 20-lifting driving device, 21-frame, 22-connecting shaft, 23-upper rotating table, 24-upper linear bearing, 25-upper bottom plate, 26-supporting column, 27-connecting piece, 28-guide column, 29-lower rotating table, 30-lower linear bearing and 31-lower bottom plate.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

As shown in fig. 1, the full-automatic biochemical analyzer of this embodiment includes a supporting platform 5, a reagent cooling system 1, a cuvette carrying system 2, a cleaning mechanism 3 and a sample-adding stirring mechanism 4 are disposed on the supporting platform 5, wherein the cleaning mechanism 3 is close to the cuvette carrying system 2, and the sample-adding stirring mechanism 4 can add sample or stir the reagent cooling system 1 and the cuvette carrying system 2 respectively. Among the system components that current full-automatic biochemical analysis appearance contains on the market, the application of sample rabbling mechanism adopts linear guide to realize perpendicular reciprocating motion, reagent refrigerating system adopts the refrigeration of closed coolant liquid circulation, washs the structure and adopts screw drive to realize reciprocating motion, the maintenance operation complicacy etc. in the reaction disc use, this scheme is through changing these structures, with its recombination for the manufacturing process becomes simple, is convenient for maintain the maintenance, and overall cost reduces moreover.

As shown in fig. 2, the reagent refrigeration system 1 of the present embodiment includes a reagent refrigeration pot body 6, three semiconductor refrigeration sheets 7 and three heat dissipation modules 8, the reagent refrigeration pot body 6 is installed on a support table 5, the three semiconductor refrigeration sheets 7 are all attached to the bottom of the reagent refrigeration pot body 6, and each heat dissipation module 8 is attached to the bottom of the corresponding semiconductor refrigeration sheet 7. The semiconductor refrigerating pieces 7 are all distributed on a concentric circle at the bottom of the reagent refrigerating pot body 6, and the distances between the adjacent semiconductor refrigerating pieces 7 are the same. The heat dissipation modules 8 and the semiconductor chilling plates 7 are located on the same circumference, and the distances between the adjacent heat dissipation modules 8 are the same. Reagent refrigeration pot body 6 is used for refrigerating reagent, reagent is deposited to its inboard face, the bottom surface laminates with semiconductor refrigeration piece 7, the face of the contact of semiconductor refrigeration piece 7 and the 6 bottoms of reagent refrigeration pot body is named cold face, cold face is to the refrigeration of reagent refrigeration pot body 6, the face of the laminating of semiconductor refrigeration piece 7 and thermal module 8 is named hot face, hot face dispels the heat through thermal module 8, semiconductor refrigeration piece 7 is under the circular telegram condition, direct refrigeration through the cold face of semiconductor refrigeration piece 7, semiconductor refrigeration piece 7 adopts the individual layer design to have the inner chamber, semiconductor refrigeration piece 7 is used for refrigerating the 6 refrigerators of reagent refrigeration pot body. The heat dissipation module 8 is used for heat dissipation to the hot face of semiconductor refrigeration piece 7, guarantees the refrigeration effect, and the hot face is realized through 8 internal circulation water-cooling modes of module of heating, as shown in fig. 2, draws water through the water pump and circulates in the circulating water pipe for heat dissipation to the hot face of semiconductor refrigeration piece guarantees the refrigeration effect, and circulating water pipe and the module 8 contact that heats form liquid refrigeration.

As shown in fig. 3, the cuvette carrier system 2 of the present embodiment includes a cuvette set 9, a cuvette set loading block 10 and a loading block supporting plate 11, the loading block supporting plate 11 is installed on the supporting platform 5, the cuvette set loading block 10 is fixed on the loading block supporting plate 11, and the cuvette set 9 is fixed on the cuvette set loading block 10; the reaction cup group loading block 10 forms a concentric circle structure along the edge of the loading block supporting plate 11. The reaction cup group 9 is used as a reagent sample reaction container of the analyzer, the reaction cup group 9 is formed by sequentially connecting a plurality of reaction cups, an integral structure is formed between every two adjacent reaction cups, in the process of taking and placing, the positioning action of the reaction cup group 9 is completed through the step arc surface in the middle of the reaction cup group loading block 10, and then the clamping action of the reaction cup group is completed through the buckles on the left side and the right side; the reaction cup can be taken and placed for a plurality of times at one time, and is convenient to take and place and convenient to install and maintain; the structure is realized by opening the die, so that the cost is low and the precision is high; the positioning and clamping is accomplished without the assistance of other elements.

The reaction cup group loading block 10 is used for loading the reaction cup group 9, and the structure of the reaction cup group loading block is formed by one-step processing, so that the processing difficulty is low, the processing precision is high, and the processing cost is low; meanwhile, the structural design of the reaction cup group clamping device guarantees the assembly precision of the reaction cup group clamping device in a pin hole positioning mode, in order to realize the fixation of the reaction cup group 9 and the reaction cup group loading block 10, buckles are arranged on the symmetrical side walls of part of reaction cups, the side walls of the placing grooves are concave inwards to form buckle grooves, the buckles are inserted into the corresponding buckle grooves, and the clamping action of the reaction cup group is completed through the buckles on the left side and the right side.

The loading block supporting plate 11 is used for supporting the reaction cup group loading block 10, and the assembly precision of the reaction cup group loading block 10 and the loading block is ensured by adopting a pin hole positioning mode.

As shown in fig. 4 and 5, the cleaning mechanism 3 of the present embodiment includes a support frame 14 for ensuring structural rigidity and supporting the structure to realize the structure movement, the support frame 14 is hollow inside, the support frame 14 is mounted on the support table 5, a guide shaft 13 is disposed on the support frame 14, the guide shaft 13 penetrates through the support frame 14 and can move along its own axis direction, and the guide shaft 13 ensures the rigidity and also ensures the vertical lifting; the top of the guide shaft 13 is connected with a washing needle assembly 12. The washing needle assembly 12 is used for washing the reaction cup and is driven to move vertically by the guide shaft 13. A moving block 15 is fixed to the guide shaft 13, and the moving block 15 is used to rotate the vertical movement carrier. And install drive arrangement 17 on support frame 14, drive arrangement 17 preferred motor, be connected with rotatory piece 16 on the output shaft of motor, rotatory piece 16 and motor are used for exporting motor rotary motion and moment, guarantee the power output of mechanism's demand, drive rotatory piece 16 through the motor and rotate. Connect rotatory piece 16 and movable block 15, be provided with the mounting groove in movable block 15, be provided with the bearing in the mounting groove, the bearing is used for realizing rotating and turns into the removal, the outer lane of bearing contacts with the wall of mounting groove and can remove along the wall of mounting groove, the inner circle of bearing passes through the connecting axle and is connected with rotatory piece 16, drive arrangement 17 drives rotatory piece 16 back like this, rotatory piece 16 can drive the bearing of being connected and rotate, but the bearing is injectd by the mounting groove, can only remove along the wall of mounting groove in the mounting groove and realize, the angular variation when offsetting rotatory piece 16 and rotating, thereby promote movable block 15 to carry out vertical direction and remove, reach rotary motion and change vertical motion purpose. Since the moving block 15 and the guide shaft 13 are fixed into a whole, the movement of the moving block 15 drives the guide shaft 13 to synchronously move vertically. In order to limit the movement, a guide groove is provided in the support frame 14, and a guide pin is provided in the moving block 15, and the guide pin is inserted into the guide groove and moves in the guide groove when the moving block 15 moves. The guide groove and the guide shaft 13 are arranged in parallel, so that the movement is more accurate.

The guide shaft 13 is sleeved with a spring 18, the spring 18 is positioned between the moving block 15 and the bottom surface of the inner wall of the support frame 14, and the spring 18 is positioned in the inner ring of the support frame 14. The spring 18 is used for power-off self-locking protection, and after power-off, the movement mechanism is used for gravity to naturally fall and is protected by the compression force of the spring 18.

In the scheme, the motor is electrified to drive the rotating block 16 to rotate, the moving block 15 moves up and down through the interaction of the rotating block 16 and the moving block 15, and the moving block 15 drives the guide shaft 13 and the cleaning needle assembly 12 to vertically lift the cleaning mechanism. When power is cut off, the power-off protection of the whole motion assembly is realized through the elastic force of the spring 18.

As shown in fig. 6 and 7, the sample-adding and stirring mechanism 4 of the present embodiment includes a connecting shaft 22 and a frame 21, the connecting shaft 22 passes through the frame 21, the frame 21 is mounted on the supporting table 5, and the frame 21 has a simple structure, is small in processing difficulty, low in cost, and is convenient for assembly and later-stage disassembly. The connecting shaft 22 is an optical axis, the top end of the connecting shaft is connected with the sample adding needle device, the bottom end of the connecting shaft penetrates through the rack 21, the rack 21 comprises an upper base plate 25, a lower base plate 31 and a plurality of support columns 26, the upper base plate 25 and the lower base plate 31 are both provided with through holes for positioning, the assembling accuracy and the self rigidity are ensured, linear bearings are arranged in the through holes, the connecting shaft 22 respectively penetrates through the through holes of the upper base plate 25 and the lower base plate 31 and is fixed with linear bearing inner rings in the through holes, the connecting shaft 22 can rotate around the self axis, for convenience of description, the linear bearing in the upper base plate 25 is named as an upper linear bearing 24, the linear bearing in the lower base plate 31 is named as a lower linear bearing 30, the support columns 26 are arranged between the upper base plate 25 and the lower base plate 31, two ends of the support columns 26 are respectively and vertically fixed with the upper base plate 25 and the lower base plate 31, and the connecting shaft 22 is located in an area formed by the support columns 26. The frame adopts the rigid connection mode of the upper bottom plate, the lower bottom plate and the pillar, the structure is simple, the processing difficulty is small, the cost is low, and the assembly and the later-stage disassembly are convenient.

The guide post 28 and the connecting shaft 22 are connected through a connecting piece 27, the connecting shaft 22 penetrates through the connecting piece 27, the connecting piece 27 can slide along the axial direction of the connecting shaft 22, a linear bearing is arranged in the connecting piece 27, the guide post 28 penetrates through the linear bearing, the connecting piece 27 can roll along the axial direction of the guide post 28, friction is reduced, and meanwhile movement is more stable. The guide posts 28 are located between the upper base plate 25 and the lower base plate 31, the guide posts 28 are parallel to the connecting shaft 22, a lower rotary table 29 is arranged between the upper base plate 25 and the lower base plate 31, the connecting shaft 22 penetrates through the lower rotary table 29 and is fixed with the lower rotary table 29, the lower rotary table 29 is located in an area formed by the supporting columns 26, the bottoms of the guide posts 28 are fixed with the lower rotary table 29, and the tops of the guide posts 28 are fixed with inner rings of linear bearings located in through holes of the upper base plate 25. The lower rotary table 29 is provided to facilitate the synchronous rotation of the guide post 28 and the connecting shaft 22.

A lifting driving device 20 is fixed on the frame 21, and the lifting driving device 20 realizes the rolling lifting of the mechanism through the guiding of a linear bearing. The device has simpler and more compact structure, replaces sliding by rolling, has small friction coefficient and relatively longer service life. Meanwhile, the linear bearing replaces a shaft sleeve, and the mounting precision is higher. Lift drive 20 includes lift drive mechanism, lift drive mechanism is fixed with frame 21, the cover has the lift hold-in range on lift drive mechanism's the output shaft, lift hold-in range can carry out the cyclic motion under the lift drive mechanism effect, and the lift hold-in range is connected with connecting piece 27, lift drive mechanism drives the lift hold-in range and removes, make the lift hold-in range drive connecting piece 27 remove along connecting axle 22, connecting piece 27 is located between upper plate 25 and the lower plate 31. The connecting shaft 22 and the guide post 28 are rigidly connected in the vertical direction through a linear bearing and a connecting piece 27, and simultaneously, the mechanism is guided through the linear bearing to realize rolling lifting. The device has simpler and more compact structure, replaces sliding by rolling, has small friction coefficient and relatively longer service life. Meanwhile, the linear bearing replaces the original shaft sleeve mode, and the mounting precision is higher.

The rotary driving device 19 is fixed on the rack 21, the rotary driving device 19 realizes the rolling rotation of the mechanism, the device is low in cost, through optimizing the size of the connecting piece, large-angle rotation can be realized, the rotary driving device 19 comprises a rotary driving mechanism, the rotary driving mechanism is fixed with the upper base plate 25, the upper base plate 25 is sleeved with the upper rotary table 23, the connecting shaft 22 penetrates through the upper rotary table 23 and is fixed with the upper rotary table 23, the rotary synchronous belt is sleeved on an output shaft of the rotary driving mechanism, the rotary synchronous belt is sleeved on the outer wall of the upper rotary table 23, the rotary synchronous belt is driven to rotate through the rotary driving mechanism, and the upper rotary table 23 rotates to drive the connecting shaft 22 to rotate around the axis direction of the rotating shaft. The inner ring of the bearing rotates through rigid support among the guide post 28, the linear bearing and the connecting piece 27, and the rolling rotation of the mechanism is realized. The increased rotation angle is achieved by optimizing the dimensions of the connector 27 and the dimensions of the components of similar connectors.

The above embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above embodiments are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. Full-automatic biochemical analysis appearance, including brace table (5), its characterized in that: the reagent cooling system (1), the reaction cup bearing system (2), the cleaning mechanism (3) and the sample adding and stirring mechanism (4) are arranged on the supporting table (5), wherein the cleaning mechanism (3) is close to the reaction cup bearing system (2), and the sample adding and stirring mechanism (4) can be used for adding samples or stirring the reagent cooling system (1) and the reaction cup bearing system (2) respectively.

2. The fully automated biochemical analyzer according to claim 1, wherein: the reagent refrigerating system (1) comprises a reagent refrigerating pot body (6), a semiconductor refrigerating sheet (7) and a heat dissipation module (8), wherein the reagent refrigerating pot body (6) is installed on the supporting table (5), the semiconductor refrigerating sheet (7) is attached to the bottom surface of the reagent refrigerating pot body (6), and the heat dissipation module (8) is attached to the semiconductor refrigerating sheet (7).

3. The fully automated biochemical analyzer according to claim 2, wherein: the number of the semiconductor refrigerating pieces (7) is at least three, the semiconductor refrigerating pieces are distributed on a concentric circle at the bottom of the reagent refrigerating pot body (6), and the distances between the adjacent semiconductor refrigerating pieces (7) are the same; the number of the heat dissipation modules (8) is the same as that of the semiconductor refrigeration pieces (7), each heat dissipation module (8) is attached to the bottom of the corresponding semiconductor refrigeration piece (7), the heat dissipation modules (8) and the semiconductor refrigeration pieces (7) are located on the same circumference, and the distance between every two adjacent heat dissipation modules (8) is the same.

4. The fully automated biochemical analyzer according to claim 1, wherein: the reaction cup bearing system (2) comprises a reaction cup group (9), a reaction cup group loading block (10) and a loading block supporting plate (11), wherein the loading block supporting plate (11) is arranged on a supporting table (5), the reaction cup group loading block (10) is fixed on the loading block supporting plate (11), and the reaction cup group (9) is fixed on the reaction cup group loading block (10); the reaction cup group loading block (10) forms a concentric circle structure along the edge of the loading block supporting plate (11).

5. The fully automated biochemical analyzer according to claim 1, wherein: the cleaning mechanism (3) comprises a support frame (14), the support frame (14) is installed on a support table (5), a guide shaft (13) is arranged on the support frame (14), the guide shaft (13) penetrates through the support frame (14) and can move along the axis direction of the guide shaft (13), a cleaning needle assembly (12) is installed at the top of the guide shaft (13), a moving block (15) is fixed on the guide shaft (13), a driving device (17) is installed on the support frame (14), the driving device (17) is connected with a rotating block (16), the rotating block (16) is connected with the moving block (15), and the driving device (17) drives the rotating block (16) to rotate so that the moving block (15) can move in the axis direction of the guide shaft (13).

6. The fully automated biochemical analyzer according to claim 5, wherein: the moving block (15) is internally provided with an installation groove, a bearing is arranged in the installation groove, an outer ring of the bearing is in contact with the wall surface of the installation groove and can move along the wall surface of the installation groove, and an inner ring of the bearing is connected with the rotating block (16) through a connecting shaft; the supporting frame (14) is provided with a guide groove, the moving block (15) is provided with a guide pin, the guide pin is inserted into the guide groove, and the guide pin moves in the guide groove when the moving block (15) moves; the guide shaft (13) is sleeved with a spring (18), and the spring (18) is positioned between the moving block (15) and the bottom surface of the inner wall of the support frame (14).

7. The fully automated biochemical analyzer according to claim 1, wherein: sample adding rabbling mechanism (4) are including connecting axle (22) and frame (21), and frame (21) are passed in connecting axle (22), and frame (21) are installed on brace table (5), be provided with guide post (28) on frame (21), connect through connecting piece (27) between guide post (28) and connecting axle (22), and connecting axle (22) pass connecting piece (27) and connecting piece (27) can slide along the axis direction of connecting axle (22), are provided with linear bearing in connecting piece (27), and linear bearing and connecting piece can roll along the axis direction of guide post (28) are passed to guide post (28).

8. The fully automated biochemical analyzer according to claim 7, wherein: the frame (21) comprises an upper base plate (25), a lower base plate (31) and a plurality of support columns (26), connecting pieces (27) are located between the upper base plate (25) and the lower base plate (31), through holes are formed in the upper base plate (25) and the lower base plate (31), linear bearings are arranged in the through holes, connecting shafts (22) penetrate through the through holes of the upper base plate (25) and the lower base plate (31) respectively and are fixed with inner rings of the linear bearings in the through holes, and the connecting shafts (22) can rotate around self axes.

9. The fully automated biochemical analyzer according to claim 8, wherein: the lifting and lowering mechanism is characterized in that a lifting and lowering driving device (20) is fixed on the rack (21), the lifting and lowering driving device (20) comprises a lifting and lowering driving mechanism, the lifting and lowering driving mechanism is fixed with the rack (21), a lifting synchronous belt is sleeved on an output shaft of the lifting and lowering driving mechanism, the lifting synchronous belt can perform circulating motion under the action of the lifting and lowering driving mechanism, the lifting synchronous belt is connected with a connecting piece (27), and the connecting piece (27) can slide along the axis direction of a connecting shaft (22) under the action of the lifting synchronous belt.

10. The fully automated biochemical analyzer according to claim 9, wherein: be fixed with rotation driving device (19) on frame (21), rotation driving device (19) are including rotation driving mechanism, rotation driving mechanism is fixed with upper plate (25), upper plate (25) top cover has last spinning platform (23), connecting axle (22) pass last spinning platform (23) and fixed with last spinning platform (23), the cover has the gyration hold-in range on rotation driving mechanism's the output shaft, the gyration hold-in range overlaps on the outer wall of last spinning platform (23), it can drive connecting axle (22) and rotate round self axis direction to go up spinning platform (23) under the rotation driving mechanism effect.