CN207970988U - A kind of combined type medical test solution centrifugal device - Google Patents

Abstract

A combined medical test solution centrifugation device belongs to the field of medical instruments. It is composed of waste liquid tank support baffle, centrifugal mechanism, lifting mechanism, centrifugal flywheel assembly, top cover, manipulator stepping motor, liquid injection manipulator and waste liquid tank. The device as a whole has four degrees of freedom to control the centrifugation of the test tube, the extraction of the test solution, and the injection of additives, which makes the device more flexible. One centrifugation work can simultaneously centrifuge multiple test tubes, which increases efficiency. Test tube operation and different additives can be injected into different test tubes, which increases the overall efficiency of centrifugation work, and the centrifugal extraction work is fully automated. The amount of extracted liquid is strictly controlled by the machine, which increases the accuracy of the extraction work, and the high degree of automation reduces the number of experimenters. The workload also avoids unnecessary human errors.

Description

A combined medical test solution centrifugal device

technical field

The invention relates to a combined medical test solution centrifugation device, specifically a specially designed medical test solution centrifugation device, the overall device is controlled by four degrees of freedom, and the centrifugal extraction of various extracts from the sample is realized after one centrifugation work is completed. The purpose of completing the comprehensive, efficient, safe and large-scale centrifugation of test solution belongs to the field of medical equipment.

Background technique

At present, the centrifugation device for medical test solution has low degree of automation, few functions, low efficiency and poor precision, and only one kind of extract can be extracted in one centrifugation work. If it is necessary to inject additives into the test solution, it needs to be manually injected and then centrifuged. Due to the manual injection of additives, the accuracy of the additives will inevitably be biased, which will affect the accuracy of the experiment and the purity of the extraction, resulting in low efficiency of centrifugal extraction of the test solution. . The content of the extract extracted by one centrifugation work is small, and multiple extractions are needed to complete a sufficient amount of extract. The extraction of the extract after each centrifugation is completed is also done manually, not only the work efficiency is low but also the precision of the extracted extract is poor. For some scientific research or medical experiments, the accuracy of the extract is required. Manual is can not complete.

Contents of the invention

In view of the above-mentioned deficiencies, the present invention provides a combined medical test solution centrifugation device.

The present invention is achieved through the following technical solutions: a combined medical test solution centrifugal device, which is composed of a waste liquid tank supporting baffle, a centrifugal mechanism, a lifting mechanism, a centrifugal flywheel assembly, a top cover, a manipulator stepping motor, and a liquid injection manipulator and waste tank. The waste liquid tank is installed above the support baffle of the waste liquid tank, the waste liquid tank is flush with the centrifugal flywheel of the centrifugal flywheel assembly, the support baffle of the waste liquid tank is installed on the fixed chassis of the lifting mechanism through the card slot, and under the top cover The inner edge of the opening is installed together with the outer periphery of the waste liquid tank. The centrifugal mechanism is installed above the lifting mechanism. Fasten the upper chassis of the centrifugal mechanism with the lifting screw nut of the lifting mechanism. The four guide posts of the lifting mechanism pass through the four The through holes are installed on the four guide posts and guide sleeves of the centrifugal mechanism. The centrifugal flywheel assembly is installed above the centrifugal mechanism. The upper end of the sample disk rotating shaft of the centrifugal mechanism is fastened to the centrifugal flywheel of the centrifugal flywheel assembly. The stepping motor of the manipulator is fastened and installed on the On the top cover, the motor shaft passes through the top cover and is connected with the shaft hole on the top support plate of the liquid injection manipulator through a key.

The centrifugal mechanism is composed of a centrifugal stepping motor, a centrifugal motor bracket, a guide post and a guide sleeve, a centrifugal synchronous belt, an upper chassis, a sample mandrel, a large centrifugal synchronous wheel, a reserved opening for lifting the stepping motor, and a sample disk rotating shaft. , sample chassis, photocell detection chassis, collection test tube, sample storage tray, centrifugal small synchronous wheel, centrifugal lower bearing and centrifugal upper bearing, four guide posts and guide sleeves are installed on the four reserved through holes of the upper chassis , the lower end of the sample mandrel is fastened and installed in the middle of the upper chassis, and the upper end of the sample mandrel is fastened and installed with the sample chassis. The photoelectric cell detection chassis, sample storage tray, and sample storage tray are installed in sequence on the sample chassis. The opening of the test tube corresponds to the opening of the collection test tube holder of the sample chassis, the collection test tube can pass through the test tube opening of the sample storage tray and be placed on the collection test tube holder of the sample chassis, the photoelectric switch of the photoelectric detection chassis faces the collection test tube in turn, The number of photoelectric switches in the photocell detection chassis and the number of test tube openings in the sample storage tray are consistent with the number of collection test tube holders in the sample chassis. On the steps, the steps of the first step of the mandrel and the second step of the mandrel just withstand the bearing inner ring of the upper bearing of the centrifuge. The outer ring of the lower bearing and the centrifugal large synchronous wheel are installed on the second step of the rotating shaft of the sample plate rotating shaft through cooperation, the centrifugal motor bracket is fastened on the upper chassis, and the centrifugal stepping motor is fastened on the centrifugal motor bracket. The shaft of the centrifugal stepper motor is connected with the small centrifugal synchronous wheel through a key connection. The small centrifugal synchronous wheel and the large centrifugal synchronous wheel are in a parallel position. The reserved opening of the motor is directly above the lifting stepping motor of the lifting mechanism.

The sample mandrel is composed of a mandrel top mounting platform, a mandrel first step, a mandrel second step, a mandrel third step, a mandrel bottom mounting hole and a mandrel top mounting hole. The mounting holes are evenly distributed in a circular array on the outside of the mandrel top mounting platform. The first step of the mandrel is located under the mandrel top mounting platform. The diameters of the first step, the second step of the mandrel, and the third step of the mandrel decrease successively, and the mounting holes at the bottom of the mandrel are distributed in a uniform array on the inner side of the third step of the mandrel.

The rotating shaft of the sample disc is composed of a mounting table at the top of the rotating shaft, a mounting hole at the top of the rotating shaft, a first step of the rotating shaft, a second step of the rotating shaft and a bearing retaining ring. On the outside of the top mounting platform of the rotary shaft, below the top mounting platform of the rotary shaft are the first step of the rotary shaft and the second step of the rotary shaft in sequence. The inner lower end of the ladder.

The sample chassis is composed of collection test tube holders, chassis mounting holes, chassis and chassis holes, the collection test tube holders are distributed in a uniform array on the outside of the chassis, the collection test tube holders are non-through holes, and the chassis installation holes are uniformly arrayed in a circle Distributed on the inner side of the chassis, the chassis mounting holes are through holes, the chassis holes are located in the middle of the chassis, and the chassis holes are through holes.

The photoelectric cell detection chassis is composed of a photoelectric switch and a detection chassis, and the photoelectric switches are distributed in the middle of the inner ring of the detection chassis in a uniform array around the circumference.

The lifting mechanism is composed of a lifting stepper motor, a lifting motor bracket, a fixed chassis, a lifting synchronous belt, a lifting bearing, a guide column, a lifting large synchronous wheel, a lifting synchronous wheel shaft, a lifting ball screw, a lifting screw nut, and a small lifting wheel. Composed of a synchronous wheel and a lifting bearing cover, the four guide columns are fixed on the fixed chassis in a uniform array on the circumference, the lifting motor bracket is fastened on the fixed chassis, and the lifting stepping motor is fastened on the lifting motor bracket. The synchronous wheel is installed on the shaft of the lifting stepper motor through key fit, the outer ring of the lifting bearing is connected with the inner ring of the through hole in the middle of the fixed chassis through the hole shaft, the lifting bearing cover is installed on the upper end of the lifting bearing and fixed on the fixed chassis, and the inner ring of the lifting bearing cover Can press the outer ring of the lifting bearing, one end of the lifting synchronous wheel shaft is connected with the inner ring of the commission bearing through the hole shaft, the other end of the lifting synchronous wheel shaft is connected with the large lifting synchronous wheel through the hole shaft, and the large synchronous wheel and small synchronous wheel are lifted In the parallel position, the lifting synchronous belt winds on the small lifting synchronous wheel and the large lifting synchronous wheel through meshing transmission, the lifting ball screw is located above the shaft of the lifting synchronous wheel, the lifting screw nut is engaged with the lifting ball screw, and the bottom of the lifting screw nut There are mounting holes distributed in a uniform array around the circumference.

The centrifugal flywheel assembly is composed of a centrifugal flywheel, a centrifuge test tube and a centrifuge test tube basket, and the centrifuge test tubes are placed in the centrifuge test tube basket in a uniform array on the centrifugal flywheel.

The centrifugal flywheel is composed of a flywheel boss, a right test tube basket support plate, a baffle arc surface, a left test tube basket support plate and positioning holes. The through hole and the positioning hole are located in the middle of the centrifugal flywheel. There is a left test tube basket support plate and a right test tube basket support plate on the left and right sides of each flywheel boss, and there is a left test tube basket support plate and a right test tube basket support plate. U-shaped opening, the curved surface of the baffle is located at the contact between the middle of every two flywheel bosses and the positioning hole.

The liquid injection manipulator is composed of a top support plate, a geared motor, a top guide rod, a top matching block, a liquid suction assembly, a top screw, an outer short plate, a liquid injection pipe groove, an inner short plate, a first gear, and a shaft hole. It is composed of the second gear, the shaft hole is located at the center of the top support plate, the top guide rod and the top lead screw are installed in parallel between the inner short plate and the outer short plate on the outer side of the top support plate and are installed perpendicular to the inner short plate and the outer short plate , the top block is connected to the top guide rod and the top lead screw through the hole shaft connection and the lead screw thread, and the middle copper tube of the liquid suction component is connected to the middle through hole of the top block, and the gear motor is placed on the top of the lead screw. Below, the shaft of the deceleration motor passes through the inner short plate and is connected with the first gear behind the inner short plate through a key, and the second gear is connected with the top screw at the shaft end of the inner short plate through a key, and the first gear meshes with the second gear Transmission, the liquid injection pipe groove is opened above the top matching block, and the liquid injection hose can pass through the liquid injection pipe groove.

The liquid suction assembly is composed of an intermediate copper tube, an infusion set needle, a syringe holder, a liquid suction head and an injection hose. And it is fixed at the center of the syringe fixing part, the liquid suction head is located at the lower end of the middle copper tube, each infusion set needle and the upper end of the middle copper tube are connected with a liquid injection hose, the liquid suction assembly and the centrifugal test tube basket filled with the centrifugal flywheel assembly The number of is an integer multiple relationship.

The top cover is processed from transparent material.

The advantage of this invention is that the device as a whole has four degrees of freedom to control the centrifugation of the test tube, the extraction of the test solution, and the injection of additives, which makes the device more flexible. A single centrifugation can perform simultaneous centrifugation of multiple test tubes, which increases the efficiency. , the injection manipulator can work on different test tubes at the same time and can inject different additives to different test tubes, which increases the overall efficiency of centrifugal work, and the centrifugal extraction work is fully automated. The amount of extracted liquid is strictly controlled by the machine, which increases the accuracy of extraction work. , the high degree of automation reduces the workload of the experimenters and avoids unnecessary human errors; the lifting mechanism is driven by the stepping motor to rotate the screw, and the screw drives the movement of the screw nut, and the use of bearings increases the overall up and down of the device. Movement precision, the use of synchronous belt improves the movement precision at the same time, the use of guide pillars avoids the left and right shaking of the device during the up and down movement, and avoids the phenomenon of movement tilt; the centrifugal mechanism uses a stepping motor to drive the movement of the synchronous belt and uses two bearings , which improves the centrifugal precision of the centrifuge and the rotation precision of the device. The combination of two bearings not only increases the rotation precision of the device, but also improves the bearing's ability to bear the vertical force. Increase the rotation accuracy of the sample disc rotation axis; the use of the photocell detection chassis provides convenience for the movement of the liquid injection manipulator and the extraction of samples, and improves efficiency; the centrifugal flywheel assembly provides a place for simultaneous centrifugation of multiple test tubes, increasing the centrifugation efficiency. The circular structure design improves the success rate of centrifugation, and the design of the arc surface of the baffle provides resistance to the centrifuge test tube basket during the centrifugation process of the test tubes, preventing the test tubes from being thrown out during the centrifugation process; the liquid injection manipulator completes the movement of two degrees of freedom and can simultaneously Drive multiple grippers to inject various additives and extract the extraction liquid, which can efficiently and quickly complete the extraction of the extraction liquid and the injection of additives, which not only increases the overall working efficiency of the device but also improves the extraction accuracy; the waste liquid tank is It is used to collect the waste liquid for cleaning needles and copper tubes, in order to improve the extraction accuracy; the top cover is made of transparent material for easy observation and the structure design of the top cover is convenient for taking the test tube.

Description of drawings

Fig. 1 is the overall assembly drawing of the present invention;

Figure 2 is an assembly drawing of the centrifugal mechanism;

Fig. 3 is the internal view of the centrifugal mechanism;

Figure 4 is a sample mandrel diagram;

Figure 5 is a diagram of the axis of rotation of the sample disc;

Figure 6 is a diagram of the sample chassis;

Figure 7 is a photocell detection chassis diagram;

Figure 8 is an assembly drawing of the lifting mechanism;

Figure 9 is an internal view of the lifting mechanism;

Figure 10 is an assembly drawing of the centrifugal flywheel assembly;

Figure 11 is a centrifugal flywheel diagram;

Figure 12 is an assembly drawing of the liquid injection manipulator;

Figure 13 is a top view of the liquid injection manipulator;

Figure 14 is a diagram of the liquid suction assembly.

Among the figure, 1, waste liquid tank support baffle, 2, centrifugal mechanism, 21, centrifugal stepper motor, 22, centrifugal motor support, 23, guide post guide sleeve, 24, centrifugal synchronous belt, 25, upper chassis, 26, Specimen mandrel, 261, mandrel top mounting platform, 262, mandrel first step, 263, mandrel second step, 264, mandrel third step, 265, mandrel bottom mounting hole, 266, mandrel top Mounting hole, 27. Centrifugal large synchronous wheel, 28. Reserved opening for lifting stepping motor, 29. Rotary shaft of sample plate, 291. Mounting table on top of rotating shaft, 292. Mounting hole on top of rotating shaft, 293. First step of rotating shaft , 294, the second step of the rotating shaft, 295, the bearing retaining ring, 210, the sample chassis, 2101, the collection test tube holder, 2102, the chassis mounting hole, 2103, the chassis, 2104, the chassis hole, 211, the photocell detection chassis, 2111 , photoelectric switch, 2112, detection chassis, 212, collection test tube, 213, sample storage tray, 214, centrifugal small synchronous wheel, 215, centrifugal lower bearing, 216, centrifugal upper bearing, 3, lifting mechanism, 31, lifting step Motor, 32, lifting motor bracket, 33, fixed chassis, 34, lifting synchronous belt, 35, lifting bearing, 36, guide post, 37, lifting large synchronous wheel, 38, lifting synchronous wheel shaft, 39, lifting ball screw, 310 , Elevate screw nut, 311, Elevate small synchronous wheel, 312, Elevate bearing cover, 4, Centrifugal flywheel assembly, 41, Centrifugal flywheel, 411, Flywheel boss, 412, Right test tube basket support plate, 413, Arc surface of baffle , 414, left test tube basket support plate, 415, positioning hole, 42, centrifuge test tube, 43, centrifuge test tube basket, 5, top cover, 6, manipulator stepping motor, 7, injection manipulator, 71, top support plate, 72 , deceleration motor, 73, top guide rod, 74, top matching block, 75, liquid suction assembly, 751, middle copper tube, 752, infusion set needle, 753, syringe fixing part, 754, liquid suction head, 755, liquid injection Hose, 76, top screw, 77, outer short plate, 78, liquid injection pipe groove, 79, inner short plate, 710, first gear, 711, shaft hole, 712, second gear, 8, waste liquid tank .

Detailed ways

A combined medical test solution centrifugation device, which is composed of a waste liquid tank supporting baffle 1, a centrifugal mechanism 2, a lifting mechanism 3, a centrifugal flywheel assembly 4, a top cover 5, a manipulator stepping motor 6, a liquid injection manipulator 7 and a waste liquid Groove consists of 8. The waste liquid tank 8 is installed above the waste liquid tank support baffle 1, the waste liquid tank 8 is flush with the centrifugal flywheel 41 of the centrifugal flywheel assembly 4, and the waste liquid tank support baffle 1 is installed on the lifting mechanism 3 through a slot. On the fixed chassis 33, the inner end edge of the lower opening of the top cover 5 is installed together with the outer periphery of the waste liquid tank 8, and the centrifugal mechanism 2 is installed above the lifting mechanism 3, and the upper chassis 25 of the centrifugal mechanism 2 is tightened with the lifting screw nut 310 of the lifting mechanism 3. Solid, the four guide posts 36 of the lifting mechanism 3 are installed on the four guide posts and guide sleeves 23 of the centrifugal mechanism 2 through the four through holes of the upper chassis 25 of the centrifugal mechanism 2, and the centrifugal flywheel assembly 4 is installed on the centrifugal mechanism 2 top, and the centrifugal flywheel assembly 4 is installed on the centrifugal mechanism 2. The upper end of the rotating shaft 29 of the sample plate in the mechanism 2 is fastened to the centrifugal flywheel 41 of the centrifugal flywheel assembly 4, and the stepping motor 6 of the manipulator is fastened to the top cover 5, and the motor shaft passes through the top support plate of the top cover 5 and the liquid injection manipulator 7 The shaft hole 711 on the 71 is connected by a key.

Described centrifugal mechanism 2 is made up of centrifugal stepper motor 21, centrifugal motor bracket 22, guide post guide sleeve 23, centrifugal synchronous belt 24, upper chassis 25, sample mandrel 26, centrifugal large synchronous wheel 27, lifting stepper motor Reserved port 28, sample disc rotation shaft 29, sample chassis 210, photocell detection chassis 211, collection test tube 212, sample storage tray 213, centrifugal small synchronous wheel 214, centrifugal lower bearing 215 and centrifugal upper bearing 216, Four guide posts and guide sleeves 23 are installed on the four reserved through holes of the upper chassis 25, the lower end of the sample mandrel 26 is fastened to the middle position of the upper chassis 25, and the upper end of the sample mandrel 26 is fastened to the sample chassis 210 , a photocell detection chassis 211 and a sample storage tray 213 are installed in turn on the sample chassis 210, the test tube opening of the sample storage tray 213 corresponds to the opening of the collection test tube holder 2101 of the sample chassis 210, and the collection test tube 212 can pass through The test tube opening of the sample storage tray 213 is placed on the collection test tube holder 2101 of the sample chassis 210, the photoelectric switch 2111 of the photocell detection chassis 211 faces the collection test tube 212 in turn, and the number of the photoelectric switch 2111 of the photocell detection chassis 211 and the number of samples The test tube opening of the storage tray 213 is consistent with the number of the collection test tube holders 2101 of the sample chassis 210, and the centrifugal lower bearing 215 and the centrifugal upper bearing 216 are set on the second spindle step 263 of the sample spindle 26. The steps of the first step 262 and the second step 263 of the mandrel just withstand the bearing inner ring of the centrifugal upper bearing 216, the sample mandrel 26 is set in the middle of the sample disk rotating shaft 29, and the bearing retaining ring 295 of the sample disk rotating shaft 29 tops Hold the outer ring of the centrifugal lower bearing 215, the centrifugal large synchronous wheel 27 is installed on the second step 294 of the rotating shaft of the sample disk rotating shaft 29 through cooperation, the centrifugal motor bracket 22 is fastened and installed on the upper chassis 25, and the centrifugal stepping motor 21 Fastened on the centrifugal motor bracket 22, the centrifugal stepping motor 21 shaft is connected with the centrifugal small synchronous wheel 214 through a key connection, the centrifugal small synchronous wheel 214 and the centrifugal large synchronous wheel 27 are in a parallel position, and the centrifugal synchronous belt 24 is wound around the centrifugal small synchronous wheel 214. The synchronous wheel 214 and the large centrifugal synchronous wheel 27 are driven by meshing, and the reserved opening 28 of the lifting stepper motor is directly above the lifting stepper motor 31 of the lifting mechanism 3 .

The sample mandrel 26 is composed of a mandrel top mounting platform 261, a mandrel first step 262, a mandrel second step 263, a mandrel third step 264, a mandrel bottom mounting hole 265 and a mandrel top mounting hole. 266, the mandrel top mounting holes 266 are evenly distributed in a circular array on the outside of the mandrel top mounting platform 261, the first mandrel step 262 is located below the mandrel top mounting platform 261, and the mandrel first step 262 is followed by the mandrel second step. The diameters of the second step 263, the third step 264 of the mandrel, the first step 262 of the mandrel, the second step 263 of the mandrel, and the third step 264 of the mandrel decrease successively. Inside the steps 264 .

The sample disk rotating shaft 29 is composed of a mounting platform 291 at the top of the rotating shaft, a mounting hole 292 at the top of the rotating shaft, a first step 293 of the rotating shaft, a second step 294 of the rotating shaft and a bearing stop ring 295. The mounting hole at the top of the rotating shaft 292 are evenly distributed in a circular array on the outside of the top mounting platform 291 of the rotating shaft. Below the top mounting platform 291 of the rotating shaft are the first step 293 of the rotating shaft, the second step 294 of the rotating shaft, the first step 293 of the rotating shaft, and the second step of the rotating shaft The diameter of 294 decreases successively, and the bearing retaining ring 295 is located at the inner lower end of the second step 294 of the rotating shaft.

The sample chassis 210 is composed of a collection test tube holder 2101, a chassis installation hole 2102, a chassis 2103 and a chassis hole 2104. The collection test tube holder 2101 is distributed in a uniform array on the outside of the chassis 2103, and the collection test tube holder 2101 is a non-through hole. , the chassis mounting holes 2102 are evenly distributed in a circular array inside the chassis 2103, the chassis mounting holes 2102 are through holes, the chassis holes 2104 are located in the middle of the chassis 2103, and the chassis holes 2104 are through holes.

The photocell detection chassis 211 is composed of a photoelectric switch 2111 and a detection chassis 2112, and the photoelectric switches 2111 are distributed in the middle of the inner circle of the detection chassis 2112 in a uniform array around the circumference.

Described lifting mechanism 3 is by lifting stepper motor 31, lifting motor bracket 32, fixed chassis 33, lifting synchronous belt 34, lifting bearing 35, guide post 36, lifting large synchronous wheel 37, lifting synchronous wheel axle 38, lifting ball wire Rod 39, lifting lead screw nut 310, lifting small synchronous wheel 311 and lifting bearing cover 312 are formed, four guide posts 36 are respectively fixed on the fixed chassis 33 in a uniform array on the circumference, and the lifting motor bracket 32 is fastened and installed on the fixed chassis 33. The lifting stepper motor 31 is fastened on the lifting motor bracket 32, the small synchronous wheel 311 is mounted on the shaft of the lifting stepper motor 31 through key fit, and the outer ring of the lifting bearing 35 passes through the inner ring of the middle through hole of the fixed chassis 33. The hole shaft is matched and connected, and the lifting bearing cover 312 is installed on the upper end of the lifting bearing 35 and fixed to the fixed chassis 33. The inner ring of the lifting bearing cover 312 can press the outer ring of the lifting bearing 35, and one end of the lifting synchronous wheel shaft 38 and the inner ring of the commissioning bearing pass through the hole shaft Fitting connection, the other end of the promotion synchronous wheel shaft 38 is connected with the promotion large synchronous wheel 37 through the hole shaft, the promotion large synchronous wheel 37 and the promotion small synchronous wheel 311 are in a parallel position, and the promotion synchronous belt 34 is wound around the promotion small synchronous wheel 311 and the lifting synchronous wheel 311. On the large synchronous wheel 37, through meshing transmission, the lifting ball screw 39 is located above the lifting synchronous wheel shaft 38, and the lifting screw nut 310 is meshed with the lifting ball screw 39 and connected, and the bottom of the lifting screw nut 310 has mounting holes to form a circular uniform array distribution.

The centrifugal flywheel assembly 4 is composed of a centrifugal flywheel 41, a centrifuge test tube 42 and a centrifuge test tube basket 43. The centrifuge test tubes 42 are placed in the centrifuge test tube basket 43 and placed on the centrifugal flywheel 41 in a uniform array on the circumference.

Described centrifugal flywheel 41 is made up of flywheel boss 411, right test tube basket support plate 412, baffle arc surface 413, left test tube basket support plate 414 and positioning hole 415, and flywheel boss 411 is distributed in the centrifugal The flywheel 41 outer ring, the positioning hole 415 is a through hole, the positioning hole 415 is located in the middle of the centrifugal flywheel 41, and each flywheel boss 411 inside left and right sides has a left test tube basket support plate 414 and a right test tube basket support plate 412. The test tube basket support plate 414 and the right test tube basket support plate 412 upper end all have a U-shaped opening, and the baffle arc surface 413 is located in the middle of every two flywheel bosses 411 and the positioning hole 415 contacts.

The liquid injection manipulator 7 is composed of a top support plate 71, a reduction motor 72, a top guide rod 73, a top matching block 74, a liquid suction assembly 75, a top screw 76, an outer short plate 77, a liquid injection pipe groove 78, an inner Short plate 79, first gear 710, shaft hole 711 and second gear 712 are formed. Between the plate 79 and the outer short plate 77 and vertically installed with the inner short plate 79 and the outer short plate 77, the top matching block 74 is connected to the top guide rod 73 and the top lead screw 76 through the hole shaft connection and the screw thread, and the suction The middle copper pipe 751 of the liquid component 75 is matched with the middle through hole of the top matching block 74. The reduction motor 72 is placed directly under the top screw 76, and the shaft of the reduction motor 72 passes through the inner short plate and the first gear behind the inner short plate. 710 is connected by a key, the second gear 712 is connected with the top lead screw 76 at the shaft end of the inner short plate by a key, the first gear 710 and the second gear 712 are meshed for transmission, and the liquid injection pipe groove 78 is opened above the top matching block 74 , the liquid injection hose 755 can pass through the liquid injection pipe groove 78 .

The liquid suction assembly 75 is composed of an intermediate copper tube 751, an infusion set needle 752, a syringe holder 753, a liquid suction head 754 and a liquid injection hose 755, and the infusion set needles 752 are distributed in a uniform array on the syringe holder 753, the middle copper tube 751 passes through and is fixed at the center of the syringe holder 753, the liquid suction head 754 is located at the lower end of the middle copper tube 751, each infusion set needle 752 and the upper end of the middle copper tube 751 are connected with an injection hose 755 Connected, the number of the liquid suction assembly 75 and the centrifuge test tube basket 43 filled with the centrifugal flywheel assembly 4 is an integer multiple.

The top cover 5 is processed from transparent material.

After the installation and debugging of the device is completed, the sample is put into the centrifuge test tube 42, the centrifuge test tube 42 is put into the centrifuge test tube basket 43, and the clean collection test tube 212 is put into each test tube hole of the sample storage tray 213 And the bottom of the collection test tube 212 touches the collection test tube holder 2101 of the sample chassis 210, respectively connect the injection hose 755 of each additive to the top of the infusion set needle 752, and connect the injection hose 755 to the middle copper tube 751 the top of. After all preparations are completed, start to power on. The photoelectric switch 2111 of the photocell detection chassis 211 starts to detect the position of the collection test tube 212, and at the same time, the centrifugal stepper motor 21 starts to work, and drives the sample through the transmission action of the centrifugal small synchronous wheel 214, the centrifugal synchronous belt 24 and the centrifugal large synchronous wheel 27. The disk rotating shaft 29 rotates, and at the same time drives the centrifugal flywheel assembly 4 to rotate, and the sample begins to perform centrifugal work. When the centrifugal work reaches the expected time, the centrifugal stepper motor 21 starts to decelerate gradually, and the centrifugal stepper motor 21 will stop rotating after the centrifugal flywheel assembly 4 is brought to the expected position. At this time, the deceleration motor 72 rotates, and the liquid suction assembly 75 is moved to the top of the waste liquid tank 8, and the injection hose 755 sprays distilled water to start cleaning the middle copper pipe 751. After the cleaning is completed, the distilled water is drained, and the deceleration motor 72 rotates. Move the liquid suction assembly 75 directly above the centrifuge test tube 42, lift the stepping motor 31 and start to work, so that the centrifugal mechanism 2 and the centrifugal flywheel assembly 4 move upward as a whole, and insert the middle copper tube 751 of the liquid suction assembly 75 into the centrifuge test tube 42 specified position, the liquid injection hose 755 passes through the middle copper pipe 751 and begins to extract useful extraction liquid. After the extraction is completed, the stepper motor 31 is lifted to work and the centrifugal mechanism 2 and the centrifugal flywheel assembly 4 are lowered to the designated position as a whole, and the reduction motor 72 starts to work. When the liquid suction assembly 75 is moved directly above the collection test tube 212, the lifting stepper motor 31 starts to work, so that the centrifugal mechanism 2 and the centrifugal flywheel assembly 4 move upward as a whole, and the middle copper tube 751 of the liquid suction assembly 75 is inserted into the collection test tube 212 at the designated position, the liquid injection hose 755 starts to discharge the collected extraction liquid through the middle copper pipe 751, after the discharge is completed, the stepper motor 31 is lifted to lower the centrifugal mechanism 2 and the centrifugal flywheel assembly 4 to the designated position as a whole. At this time, the deceleration motor 72 starts to work and when the liquid suction assembly 75 is moved to the top of the waste liquid tank 8 again, the injection hose 755 sprays distilled water and begins to clean the middle copper pipe 751. After cleaning, the distilled water is drained, and the deceleration motor 72 Rotate to move the liquid suction assembly 75 directly above the centrifuge test tube 42, lift the stepper motor 31 to start working, and make the centrifugal mechanism 2 and the centrifugal flywheel assembly 4 move upward as a whole, and insert the infusion set needle 752 of the liquid suction assembly 75 into the centrifuge test tube 42 Designate the position, add the additive to be added into the centrifuge test tube 42 through the injection hose 755 and the corresponding infusion set needle 752, at this time, the stepper motor 31 is lifted to work and the centrifugal mechanism 2 and the centrifugal flywheel assembly 4 are lowered to the designated position as a whole . This motion is that a plurality of liquid suction assemblies 75 carry out simultaneously, after finishing. The manipulator stepper motor 6 drives the liquid injection manipulator 7 to rotate to a designated position, and performs the same extraction work on the corresponding sample. After all the centrifuged sample operations are completed, the device starts repeated centrifugation-extraction motions until all required extracts are obtained. The whole device is finished, and the test tube and the device are cleaned by power off.

For those of ordinary skill in the art, according to the teaching of the present invention, without departing from the principle and spirit of the present invention, the changes, modifications, replacements and modifications to the implementation still fall within the protection scope of the present invention within.

Claims (6)

1. A combined medical test solution centrifugal device, which is composed of a waste liquid tank support baffle, a centrifugal mechanism, a lifting mechanism, a centrifugal flywheel assembly, a top cover, a stepping motor for a manipulator, a liquid injection manipulator and a waste liquid tank. It is characterized in that: the waste liquid tank is installed above the waste liquid tank support baffle, the waste liquid tank is flush with the centrifugal flywheel of the centrifugal flywheel assembly, and the waste liquid tank support baffle is installed on the fixed chassis of the lifting mechanism through the card slot, The inner end edge of the lower opening of the top cover is installed together with the outer periphery of the waste liquid tank, the centrifugal mechanism is installed above the lifting mechanism, the upper chassis of the centrifugal mechanism is fastened with the lifting screw nut of the lifting mechanism, and the four guide posts of the lifting mechanism pass through the upper chassis of the centrifugal mechanism The four through holes of the centrifugal mechanism are installed on the four guide posts and guide sleeves of the centrifugal mechanism. The centrifugal flywheel assembly is installed above the centrifugal mechanism. The upper end of the sample disk rotating shaft of the centrifugal mechanism is fastened to the centrifugal flywheel of the centrifugal flywheel assembly, and the stepping motor of the manipulator is tightened. Fixedly installed on the top cover, the motor shaft passes through the top cover and is connected with the shaft hole on the top support plate of the liquid injection manipulator through a key. 2. A combined medical test solution centrifugal device as claimed in claim 1, characterized in that: the centrifugal mechanism is composed of a centrifugal stepping motor, a centrifugal motor support, a guide post guide sleeve, a centrifugal synchronous belt, and an upper chassis , sample mandrel, centrifugal large synchronous wheel, reserved opening for lifting stepper motor, sample disk rotating shaft, sample chassis, photocell detection chassis, collection test tube, sample storage tray, centrifugal small synchronous wheel, centrifugal lower bearing and Composed of centrifugal upper bearings, four guide posts and guide sleeves are installed on the four reserved through holes of the upper chassis, the lower end of the sample mandrel is fastened to the middle of the upper chassis, and the upper end of the sample mandrel is fastened to the sample chassis , the photocell detection chassis and sample storage tray are installed in turn on the sample chassis, the test tube opening of the sample storage tray corresponds to the opening of the collection test tube seat of the sample chassis, and the collection test tube can pass through the test tube opening of the sample storage tray Placed on the collection test tube holder of the sample chassis, the photoelectric switches of the photoelectric cell detection chassis face the collection test tubes in turn, the number of photoelectric switches on the photoelectric cell detection chassis, the test tube openings of the sample storage tray and the number of collection test tube holders of the sample chassis Consistent, the centrifugal lower bearing and the centrifugal upper bearing are all set on the second step of the mandrel of the sample mandrel, and the steps of the first step of the mandrel and the second step of the mandrel just withstand the bearing inner ring of the centrifugal upper bearing, The sample mandrel is set in the middle of the rotating shaft of the sample disc, the bearing stop ring of the rotating shaft of the sample disc bears against the outer ring of the bearing under the centrifuge, and the large centrifugal synchronous wheel is installed on the second step of the rotating shaft of the rotating shaft of the sample disc through cooperation, and the centrifugal The motor bracket is fastened on the upper chassis, and the centrifugal stepping motor is fastened on the centrifugal motor bracket. The shaft of the centrifugal stepping motor is connected with the centrifugal small synchronous wheel through a key connection, and the centrifugal small synchronous wheel and the centrifugal large synchronous wheel are in a parallel position. , the centrifugal synchronous belt is wound on the centrifugal small synchronous wheel and the centrifugal large synchronous wheel through meshing transmission, and the reserved opening of the lifting stepper motor is directly above the lifting stepper motor of the lifting mechanism; the sample mandrel is formed by the top of the mandrel The mounting table, the first step of the mandrel, the second step of the mandrel, the third step of the mandrel, the mounting hole at the bottom of the mandrel and the mounting hole at the top of the mandrel, the mounting holes at the top of the mandrel are distributed in a uniform array on the mandrel top mounting table On the outside, the first step of the mandrel is located under the mounting platform on the top of the mandrel. Below the first step of the mandrel are the second step of the mandrel, the third step of the mandrel, the first step of the mandrel, the second step of the mandrel, and the second step of the mandrel. The diameters of the three steps decrease successively, and the mounting holes at the bottom of the mandrel are evenly distributed in a circular array on the inner side of the third step of the mandrel; the rotating shaft of the sample disc is composed of the mounting platform at the top of the rotating shaft, the mounting hole at the top of the rotating shaft, the first step of the rotating shaft, Composed of the second step of the rotating shaft and the bearing retaining ring, the mounting holes on the top of the rotating shaft are distributed in a uniform array on the outside of the mounting platform on the top of the rotating shaft. Below the mounting platform on the top of the rotating shaft are the first step of the rotating shaft and the second step of the rotating shaft The diameters of the first step of the rotating shaft and the second step of the rotating shaft decrease in turn, and the bearing stop ring is located at the lower end of the second step of the rotating shaft; the sample chassis is composed of a collection test tube seat, a chassis mounting hole, a chassis and a chassis hole, The collection test tube holders are distributed in a uniform array on the outside of the chassis, the collection test tube holders are non-through holes, and the chassis is installed The mounting holes are distributed in a uniform array on the inner side of the chassis, the chassis mounting holes are through holes, the chassis holes are located in the middle of the chassis, and the chassis holes are through holes; the photoelectric cell detection chassis is composed of a photoelectric switch and a detection chassis, and the photoelectric switch They are evenly distributed in a circular array in the middle of the inner ring of the detection chassis. 3. A kind of combined medical test solution centrifugal device as claimed in claim 1, characterized in that: the lifting mechanism is composed of a lifting stepper motor, a lifting motor bracket, a fixed chassis, a lifting timing belt, a lifting bearing, a guide The four guide columns are respectively fixed on the fixed chassis in a uniform array on the circumference, and the lifting motor bracket Fastened on the fixed chassis, the lifting stepping motor is fastened on the lifting motor bracket, the small lifting synchronous wheel is fitted on the lifting stepping motor shaft through key fit, and the outer ring of the lifting bearing passes through the inner ring of the through hole in the middle of the fixed chassis. The hole shaft is matched and connected. The lifting bearing cover is installed on the upper end of the lifting bearing and fixed on the fixed chassis. The inner ring of the lifting bearing cover can press the outer ring of the lifting bearing. The other end is connected with the large lifting synchronous wheel through the hole shaft. The large lifting synchronous wheel and the small lifting synchronous wheel are in a parallel position. Located above the lifting synchronous wheel shaft, the lifting screw nut is meshed with the lifting ball screw, and the bottom of the lifting screw nut has mounting holes arranged in a uniform array on the circumference. 4. A combined medical test solution centrifugal device as claimed in claim 1, wherein the centrifugal flywheel assembly is composed of a centrifugal flywheel, a centrifugal test tube and a centrifugal test tube basket, and the centrifugal test tube is placed in the centrifugal test tube basket Place it in a uniform array on the centrifugal flywheel; the centrifugal flywheel is composed of the flywheel boss, the right test tube basket support plate, the arc surface of the baffle, the left test tube basket support plate and the positioning hole, and the flywheel boss is uniform in circumference. The array is distributed on the outer ring of the centrifugal flywheel, the positioning hole is a through hole, and the positioning hole is located in the middle of the centrifugal flywheel. There is a left test tube basket support plate and a right test tube basket support plate on the left and right sides of each flywheel boss. There is a U-shaped opening on the upper end of the plate and the right test tube basket support plate, and the arc surface of the baffle plate is located at the contact position between the middle of every two flywheel bosses and the positioning hole. 5. A combined medical test solution centrifugal device as claimed in claim 1, characterized in that: the liquid injection manipulator is composed of a top support plate, a geared motor, a top guide rod, a top matching block, a liquid suction assembly, The top screw, the outer short plate, the liquid injection pipe groove, the inner short plate, the first gear, the shaft hole and the second gear, the shaft hole is located at the center of the top support plate, and the top guide rod and the top screw are installed on the top in parallel The outer side of the support plate is installed between the inner short plate and the outer short plate and vertically with the inner short plate and the outer short plate. The top matching block is connected to the top guide rod and the top lead screw through the hole shaft connection and the screw thread, and through the liquid suction component The middle copper tube is matched with the middle through hole of the top matching block, the geared motor is placed directly below the top screw, the geared motor shaft passes through the inner short plate and is connected with the first gear behind the inner short plate through a key, and the second gear is connected with the first gear behind the inner short plate. The top lead screw is connected by a key at the shaft end of the inner short plate, the first gear and the second gear are meshed for transmission, the liquid injection pipe groove is opened above the top matching block, and the liquid injection hose can pass through the liquid injection pipe groove; The liquid suction assembly is composed of the middle copper tube, the needle of the infusion set, the syringe holder, the suction head and the injection hose. At the center of the syringe fixing part, the liquid suction head is located at the lower end of the middle copper tube, each infusion set needle and the upper end of the middle copper tube are connected with a liquid injection hose, the liquid suction assembly and the centrifuge test tube basket filled with the centrifugal flywheel assembly are individually Numbers are integer multiples. 6. A combined medical test solution centrifugal device as claimed in claim 1, characterized in that: said top cover is made of transparent material.