CN112873259A

CN112873259A - Cover-pulling code-scanning mechanism of blood testing machine

Info

Publication number: CN112873259A
Application number: CN202110027401.6A
Authority: CN
Inventors: 梁启明
Original assignee: Xd Precision Machinery Dongguan Co ltd
Current assignee: Xd Precision Machinery Dongguan Co ltd
Priority date: 2021-01-10
Filing date: 2021-01-10
Publication date: 2021-06-01

Abstract

The invention relates to a cover pulling and code scanning mechanism of a blood testing machine, which comprises a cover pulling back plate, wherein a batching rotating mechanism, a code scanner and a first driving mechanism are sequentially arranged on the cover pulling back plate from top to bottom, a liquid transfer device is also connected onto the cover pulling back plate, the bottom of the batching rotating mechanism is connected with a first electric clamping jaw for clamping a blood collection tube cover, and the first driving mechanism is connected with a second electric clamping jaw for clamping a blood collection tube body. Compared with the prior art, the blood sampling tube is clamped by the blood sampling tube cover clamping fingers, the batching rotating mechanism drives the blood sampling tube to rotate, the code scanner is started to automatically scan codes, after the positioning clamping jaws clamp the tube body of the blood sampling tube, the first driving mechanism and the blood sampling tube guide block are matched to drive the blood sampling tube body to move downwards, and the tube cover of the blood sampling tube is left in the blood sampling tube cover clamping fingers, so that the blood sampling tube is uncovered.

Description

Cover-pulling code-scanning mechanism of blood testing machine

Technical Field

The invention relates to a cover-pulling code-scanning mechanism of a blood testing machine, belonging to the technical field of medical instruments.

Background

The basic steps of blood test are: 1. collecting a specimen, and extracting venous blood of a patient by a clinical nurse; 2. conveying the specimen, and immediately conveying the specimen to a clinical laboratory after blood sampling; 3. receiving and processing a specimen, and adding a reagent required by the test into the specimen by a clinical laboratory; 4. and (5) testing and preserving the specimen on a machine. After the sample was gathered, can the automatic bar code that generates this patient test item, during the sample was handled, the clinical laboratory just can add reagent according to this patient's blood test demand with this bar code of bar code scanning, for closing the lid state of heparin tube when sweeping the sign indicating number, need uncap the heparin tube after sweeping the sign indicating number to follow-up processing sweeps sign indicating number and heparin tube and uncaps these two actions and accomplish by manual work usually, and is very troublesome, waste time.

Disclosure of Invention

The invention aims to provide a cover-pulling code-scanning mechanism of a blood testing machine, which can realize automatic code scanning and cover opening and closing of a blood sampling tube aiming at the defects of the prior art.

The technical scheme adopted by the invention for realizing the purpose is as follows:

a yard mechanism is swept to drawing lid of blood test machine, including drawing the lid backplate, it has set gradually batching rotary mechanism, bar code collector and first actuating mechanism to draw the lid backplate from the top down, it still is connected with the liquid-transfering device to draw on the lid backplate, batching rotary mechanism bottom is connected with and is used for pressing from both sides the first electronic clamping jaw of getting the heparin tube lid, be connected with on the first actuating mechanism and be used for pressing from both sides the second electronic clamping jaw of getting the heparin tube body, first electronic clamping jaw with second electronic clamping jaw all includes the clamping jaw electric jar and is located the clamping jaw piston rod of clamping jaw electric jar both sides.

As a further optimization of the above technical solution: all install heparin tube cap on the clamping jaw piston rod of first electronic clamping jaw both sides and press from both sides and indicate, all install the location clamping jaw on the clamping jaw piston rod of second electronic clamping jaw both sides, the location clamping jaw is located under the heparin tube cap presss from both sides and indicates, the tube cap of heparin tube is pressed from both sides to the heparin tube cap clamp and gets, it drives the heparin tube cap clamp and indicates and the rotation of heparin tube cap to stir ingredients rotary mechanism, the tube shaft of heparin tube is pressed from both sides to the location clamping jaw clamp, first actuating mechanism drives the location clamping jaw and the heparin tube shaft reciprocates.

As a further optimization of the above technical solution: the lower part of pulling out the lid backplate is fixed with the heparin tube guide block, be provided with on the heparin tube guide block and pull out the lid slider, pull out the lid slider by first actuating mechanism drives and can follow the heparin tube guide block removes, the electronic clamping jaw of second is installed pull out on the lid slider.

As a further optimization of the above technical solution: the first driving mechanism is any one of an oil cylinder, an air cylinder, a lead screw transmission mechanism, a synchronous wheel transmission mechanism, a chain transmission mechanism or a composite transmission mechanism.

As a further optimization of the above technical solution: the screw rod transmission mechanism comprises a first screw rod and a first motor, the first screw rod comprises a first screw rod and a first nut in threaded fit with the first screw rod, the first screw rod is connected with a rotating shaft of the first motor through a coupler, a first induction rod is fixed on the cover pulling sliding block, and the first induction rod is connected with the first nut; the blood sampling tube guide block is internally provided with a first cavity for mounting the screw rod transmission mechanism, the first screw rod is positioned in the first cavity, the first motor is mounted on the blood sampling tube guide block or a frame of a blood testing machine, the blood sampling tube guide block is provided with a first sliding hole, the first sliding hole is communicated with the first cavity, and the first induction rod penetrates through the first sliding hole and is connected with the first nut.

As a further optimization of the above technical solution: the synchronous wheel transmission mechanism comprises a second motor, a first transmission shaft and a second transmission shaft, the first transmission shaft is connected with a rotating shaft of the second motor, the arrangement directions of the first transmission shaft and the second transmission shaft are the same, the second transmission shaft is arranged in parallel with the first transmission shaft, a first belt is sleeved between the first transmission shaft and the second transmission shaft, a first connecting block is fixed on the first belt, a second induction rod is fixed on the cover pulling sliding block, and the second induction rod is connected with the first connecting block; a blood collection tube transmission block is installed at one end of the blood collection tube guide block, a synchronizing wheel transmission mechanism is installed in the blood collection tube transmission block and the blood collection tube guide block, a first transmission shaft is arranged in the blood collection tube transmission block, a second motor is installed on the blood collection tube transmission block and perpendicular to the blood collection tube guide block or installed on a frame of a blood testing machine, a second cavity is formed in the blood collection tube guide block, the second transmission shaft is located at one end, far away from the blood collection tube transmission block, of the second cavity, a second sliding hole is further formed in the blood collection tube guide block, the second sliding hole is communicated with the second cavity, and a second induction rod penetrates through the second sliding hole and is connected with the first connection block.

As a further optimization of the above technical solution: the chain transmission mechanism comprises a third motor, a first gear and a second gear, a gear shaft of the first gear is connected with a rotating shaft of the third motor, the arrangement directions of the gear shaft of the first gear and the rotating shaft of the third motor are the same, a gear shaft of the second gear is arranged in parallel with the gear shaft of the first gear, a chain is sleeved between a gear wheel disc of the first gear and a gear wheel disc of the second gear, a second connecting block is fixed on the chain, a third induction rod is fixed on the cover pulling slider, and the third induction rod is connected with the second connecting block; a blood collection tube transmission block is installed at one end of the blood collection tube guide block, a chain transmission mechanism is installed in the blood collection tube transmission block and the blood collection tube guide block, the first gear is arranged in the blood collection tube transmission block, the third motor is installed on the blood collection tube transmission block and perpendicular to the blood collection tube guide block or installed on a frame of a blood testing machine, a third cavity is formed in the blood collection tube guide block, the second gear is located at one end, far away from the blood collection tube transmission block, of the third cavity, a third sliding hole is further formed in the blood collection tube guide block, the third sliding hole is communicated with the third cavity, and the third induction rod penetrates through the third sliding hole and is connected with the second connecting block.

As a further optimization of the above technical solution: the composite transmission mechanism comprises a fourth motor, a second screw rod, a third transmission shaft and a fourth transmission shaft, the second screw rod comprises a second screw rod and a second nut in threaded fit with the second screw rod, the third transmission shaft is connected with a rotating shaft in the fourth motor, the fourth transmission shaft is connected with the second screw rod, a second belt is sleeved between the third transmission shaft and the fourth transmission shaft, a fourth induction rod is fixed on the cover pulling slider, and the fourth induction rod is connected with the second nut; install heparin tube transmission block on the heparin tube guide block, compound drive mechanism installs heparin tube transmission block with in the heparin tube guide block, wherein third transmission shaft and fourth transmission shaft are located in the heparin tube transmission block, the system has the fourth cavity in the heparin tube guide block, the second lead screw is located in the fourth cavity, the fourth motor is installed on the heparin tube transmission block and be on a parallel with the setting of heparin tube guide block or install in the frame of blood test machine, the system has the fourth sliding hole on the heparin tube guide block, the fourth sliding hole with the fourth cavity intercommunication, the fourth induction rod passes the fourth sliding hole and with the second nut is connected.

As a further optimization of the above technical solution: install first spacing sensor, origin sensor and the spacing sensor of second on the heparin tube guide block, first spacing sensor, the spacing sensor of second are fixed respectively the both ends of heparin tube guide block side, origin sensor is located first spacing sensor with between the spacing sensor of second.

As a further optimization of the above technical solution: move the liquid device and fix through the connecting plate on pulling out the lid backplate, move the liquid device including moving liquid guide block and pipettor, the side of moving the liquid guide block is fixed with moves the liquid guide rail, be provided with on moving the liquid guide rail and move the liquid slider, the pipettor is fixed move on the liquid slider, move the liquid slider and drive and can follow by second actuating mechanism move the liquid guide rail and remove.

As a further optimization of the above technical solution: the second driving mechanism is any one of an oil cylinder, an air cylinder, a lead screw transmission mechanism, a synchronous wheel transmission mechanism, a chain transmission mechanism or a composite transmission mechanism.

As a further optimization of the above technical solution: the pipettor comprises a suction head separation guide block fixed on the pipetting slide block, a suction head fixing pipe is fixed at the bottom of the suction head separation guide block, a fixed inclined plane matched with the suction head is formed at the bottom of the suction head fixing pipe, a suction head separation pipe is sleeved on the suction head fixing pipe, the fixed inclined plane penetrates through the bottom of the suction head separation pipe, a transmission rod is further arranged at the bottom of the suction head separation guide block, a buffer spring is sleeved on the transmission rod, an upper limit block and a lower limit block are formed at the bottom of the transmission rod, a clamping groove is formed between the upper limit block and the lower limit block, an extension block is fixed at the top of the suction head separation pipe and comprises a connecting part fixed with the suction head separation pipe, a clamping block part which is integrally C-shaped and a handle part, a bending groove is further formed in the clamping block part, and the bottom of the transmission rod extends out, the clamping block portion clamps the clamping groove and fixes the suction head separating pipe and the transmission rod, and the transmission rod is driven by a third driving mechanism to move up and down.

As a further optimization of the above technical solution: the third driving mechanism is any one of an oil cylinder, an air cylinder, a lead screw transmission mechanism, a synchronous wheel transmission mechanism, a chain transmission mechanism or a composite transmission mechanism.

As a further optimization of the above technical solution: two the lower part that heparin tube cover clamp indicated relative one side all made the location chamber, the bottom system in location chamber has the step of pulling out the lid, the top in location chamber still system has the movable chamber of pulling out the lid.

As a further optimization of the above technical solution: and one side of the head part of each positioning clamping jaw opposite to the head part is provided with a blood sampling tube body clamping groove, and an elastic body is arranged in each blood sampling tube body clamping groove.

As a further optimization of the above technical solution: the cover pulling back plate is further provided with a cover pulling sensor, a round hole is further formed in the positioning cavity, and the cover pulling sensor corresponds to the round hole.

As a further optimization of the above technical solution: the batching rotary mechanism comprises a batching rotary motor, a front synchronous shaft, a rear synchronous shaft and a motor top plate, wherein one end of the motor top plate is provided with a mounting hole, two sides of the mounting hole are provided with mounting steps, the mounting steps are provided with a plurality of bolt holes, a motor connecting plate is arranged in the mounting hole, the batching rotary motor is fixed at the bottom of the motor connecting plate, a rotor of the batching rotary motor penetrates through the motor connecting plate and is connected with the rear synchronous shaft, two sides of the motor connecting plate are provided with mounting parts, the mounting parts are provided with moving bar-shaped holes, the mounting parts are positioned on the mounting steps, bolts penetrate through the moving bar-shaped holes and the bolt holes and are matched with nuts to install the motor connecting plate on the motor top plate, one side of the mounting hole, which is close to the middle part of the motor top plate, is further fixed with a motor, the electric clamping jaw is characterized in that a rotating shaft is installed in the rotating bearing seat, the rotating shaft is fixed with a front synchronizing shaft, the bottom of the rotating shaft penetrates through a motor top plate and is connected with a first electric clamping jaw, a synchronous belt is sleeved between the front synchronizing shaft and a rear synchronizing shaft, a batching origin sensor is fixed in the middle of the motor top plate, the head of the rotating shaft penetrates through the front synchronizing shaft and is fixed with a batching origin induction sheet matched with the batching origin sensor, an electric slip ring is further arranged at the top of the rotating shaft, a supporting sheet is supported on the rotating bearing seat through two supporting rods, and the electric slip ring is located on the supporting sheet.

As a further optimization of the above technical solution: the clamping jaw electric cylinder end face system has the clamping jaw spout of indent, the system has convex draw runner on the cell wall of clamping jaw spout both sides, the centre of drawing runner is provided with the gag lever post, the bottom system of clamping jaw piston rod has the smooth landing foot of leading, the side system of leading smooth landing foot has the slide way of leading, the tank bottom system of slide way has spacing hole, two the smooth landing foot of leading of clamping jaw piston rod all is located in the clamping jaw spout, it is located to lead the landing foot in the slide way, the gag lever post passes spacing hole.

As a further optimization of the above technical solution: and cover pulling side plates are also arranged on two sides of the cover pulling back plate.

Compared with the prior art, the blood sampling tube is clamped by the blood sampling tube cover clamping fingers, the batching rotating mechanism drives the blood sampling tube to rotate, the code scanner is started to automatically scan codes, the positioning clamping jaws clamp the tube body of the blood sampling tube, the blood sampling tube moving motor and the blood sampling tube guide block are matched to drive the blood sampling tube body to move downwards, the tube cover of the blood sampling tube is left in the blood sampling tube cover clamping fingers, the blood sampling tube is opened, the code scanning speed and the blood sampling tube opening speed are guaranteed, and the blood inspection efficiency is greatly improved.

Drawings

Fig. 1 is a schematic perspective view of a blood testing machine according to the present invention.

Fig. 2 is a schematic perspective view of a front frame and devices on the front frame in the blood testing machine according to the present invention.

Fig. 3 is a schematic perspective view of an electric gripper cylinder according to the present invention.

Fig. 4 is a schematic perspective view of a piston rod of a jaw of the present invention.

Fig. 5 is a schematic perspective view of a dispensing device of the blood testing machine according to the present invention.

Fig. 6 is a schematic structural diagram of the present invention.

Fig. 7 is a schematic perspective view of the present invention.

Fig. 8 is a partial enlarged view at a in fig. 7.

Figure 9 is a schematic perspective view of the tip detachment tube of the present invention.

Fig. 10 is a schematic perspective view of the material distributing and rotating mechanism of the present invention.

FIG. 11 is a schematic perspective view of a clamping finger of the blood collection tube cap of the present invention.

Fig. 12 is a schematic view of the internal structure of the synchronizing wheel transmission mechanism in the present invention.

Fig. 13 is a schematic view of the internal structure of the compound transmission mechanism of the present invention.

Detailed Description

The invention is further described with reference to the following figures and detailed description. As shown in fig. 1 to 13, the blood testing machine using the present invention includes a feeding device 1, a material taking device 2, a material dispensing device 3, and a material moving device 4 and a testing device 5 on a rear frame 8, which are sequentially arranged from front to rear on a front frame 6. After the blood sample is collected, heparin tube and other materials are put into in the loading attachment 1, after the loading attachment 1 material loading, 2 clamps of extracting device are got heparin tube and other materials on the loading attachment 1 move to set for the position in the dosing unit 3, blood in the heparin tube warp dosing unit 3 sample and add the sample that the test needs and form the sample that awaits measuring, move material device 4 with the sample that awaits measuring and move to carry out the blood test in the verifying attachment 5.

In the above technical scheme: as shown in fig. 5, the batching device 3 includes a screw-capping mechanism 31, a turning mechanism 32, a standing mechanism 33, a cover-pulling code-scanning mechanism 34, a suction head positioning mechanism 35, a to-be-measured sample transferring mechanism 36, a reagent bottle positioning mechanism 37, and a reagent feeding mechanism 38, and the batching device 3 is fixed on the front frame 6 through a batching plate 301 at the bottom. The cover screwing mechanism 31 is responsible for opening and closing the cover of the reagent tube; the turnover mechanism 32 is responsible for turning over the blood sampling tube or the reagent tube; the standing mechanism 33 is responsible for standing the blood sampling tube and the reagent tube; the sucker positioning mechanism 35 is responsible for moving the sucker; the sample transfer mechanism 36 to be tested is responsible for moving the measuring cup 7; the reagent bottle positioning mechanism 37 is used for placing glass bottles P1, P2 and P3 containing various reagents required by blood tests; the reagent supply mechanism 38 is adapted to receive vials containing other reagents required for blood testing, such as CaCl₂And (3) a reagent.

In the above technical scheme: as shown in fig. 6, the cap-removing code-scanning mechanism 34 is responsible for scanning the barcode of the blood collection tube and opening and closing the cap of the blood collection tube, the cap-removing code-scanning mechanism 34 includes a cap-removing back plate 348 and cap-removing side plates 3418 located at two sides of the cap-removing back plate 348, the bottoms of the cap-removing side plates 3418 are fixed on the material distribution plate 301, the material distribution plate 301 is provided with cap-removing moving holes, the bottom of the cap-removing back plate 348 passes through the cap-removing moving holes, and the top of the cap-removing back plate 348 is provided with a material distribution rotating mechanism.

In the above technical scheme: as shown in fig. 7 and 10, the batching rotary mechanism 39 includes a batching rotary motor 391, a front synchronizing shaft 392, a rear synchronizing shaft 393 and a motor top plate 394, one end of the motor top plate 394 is provided with a mounting hole 3941, two sides of the mounting hole 3941 are provided with mounting steps 3942, the mounting steps 3942 are provided with a plurality of bolt holes 3943, in the embodiment, each mounting step 3942 is provided with six bolt holes 3943, a motor connecting plate 395 is arranged in the mounting hole 3941, the batching rotary motor 391 is fixed at the bottom of the motor connecting plate 395, and a rotor of the batching rotary motor 391 penetrates through the motor connecting plate 395 and is connected with the rear synchronizing shaft 393. Two sides system of motor connecting plate 395 has installation department 3951, the system has removal bar hole 3952 on the installation department 3951, installation department 3951 is located installation step 3942, the bolt passes removal bar hole 3952 and bolt hole 3943 and installs motor connecting plate 395 on motor roof 394 with the nut cooperation, the installation finishes still leaves the removal space of bolt in removing bar hole 3952, when motor connecting plate 395 needs the shift position, promote motor connecting plate 395 can, need not to dismantle the bolt completely and remove again, the bolt is fixed and has decided the position and the removal space of motor connecting plate 395 in which bolt hole 3943. A motor top block 396 is further fixed to one side of the mounting hole 3941 close to the middle of the motor top plate 394, and the motor top block 396 prevents the motor connecting plate 395 from moving excessively. A rotation shaft support 397 is fixed to the other end of the motor top plate 394, a rotation shaft 398 is mounted in the rotation shaft support 397, and the rotation shaft 398 is fixed to the front hinge 392. A synchronous belt 399 is sleeved between the front synchronous shaft 392 and the rear synchronous shaft 393, and when the degree of tightness of the synchronous belt 399 needs to be adjusted, the motor connecting plate 395 is moved. A burden origin sensor 3910 is fixed to the middle of the motor top plate 394 through a zigzag fixing plate, and a burden origin sensing piece 3911 is fixed to the top of the rotating shaft 398 passing through the front hinge 392. Batching rotating electrical machines 391 drives the rotatory in-process of synchronous axle 393, preceding synchronous axle 392 and batching initial point response piece 3911, when batching initial point sensor 3910 senses batching initial point response piece 3911, batching rotating electrical machines 391 resets to the initial point, and batching initial point response piece 3911 and batching initial point sensor 3910 cooperate the use to ensure uncap or close the lid after the batching rotating electrical machines 391 can both get back to the initial point department. An electrical slip ring 3912 is further disposed on the top of the rotating shaft 398, a support plate 3913 is supported on the rotating bearing seat 397 through two support rods, and the electrical slip ring 3912 is located on the support plate 3913. The wires on the batching rotating mechanism 39 are all connected with the electric slip ring, and the electric slip ring is fixed during rotation, so that a certain section of the wires is always fixed, and the phenomenon that the wires are wound is avoided.

In the above technical scheme: the bottom of the rotating shaft 398 passes through the motor top plate 394 and is connected to a first motorized jaw 400 for grasping a cartridge cap. As shown in fig. 3 and 4, the first electric clamping jaw 400 comprises an electric clamping jaw cylinder 101 and clamping jaw piston rods 102 positioned at two sides of the electric clamping jaw cylinder 101, wherein the electric clamping jaw cylinder 101 is directly purchased from the market, and the internal structure of the electric clamping jaw cylinder 101 is the prior art, and only the external shape or the external structure of the electric clamping jaw cylinder is adjusted in different use occasions. As shown in fig. 3, an end face of the electric gripper cylinder 101 is provided with a concave gripper sliding groove 1011, groove walls on both sides of the gripper sliding groove 1011 are provided with convex sliding guide strips 1012, and a limit rod 1013 is arranged in the middle of the sliding guide strips 1012. As shown in fig. 4, the bottom of the clamping jaw piston rod 102 is formed with a sliding guide leg 1021, a sliding guide slot 1022 is formed on one side surface of the sliding guide leg 1021, and a long-strip-shaped limiting hole 1023 is formed at the bottom of the sliding guide slot 1022. The sliding guide feet 1021 of the two clamping jaw piston rods 102 are both positioned in the clamping jaw sliding grooves 1011, the sliding guide strips 1012 are positioned in the sliding guide grooves 1022, and the limiting rods 1013 penetrate through the limiting holes 1023. The clamping jaw electric cylinder 101 drives the clamping jaw piston rod 102 to move, in the process, the sliding guide strip 1012 and the sliding guide groove 1022 are matched to play a role in sliding guide, the limiting rod 1013 and the limiting hole 1023 are matched to play a role in limiting, and the clamping jaw piston rod 102 is prevented from moving excessively.

In the above technical scheme: blood collection tube cover clamping fingers 343 are mounted on the clamping jaw piston rods 102 on the two sides of the first electric clamping jaw 400. As shown in fig. 11, the lower portions of the opposite sides of the two blood sampling tube cap clamping fingers 343 are both provided with an arc-shaped positioning cavity 3431, the bottom of the positioning cavity 3431 is provided with an overall arc-shaped cap pulling step 3432, when the blood sampling tube cap clamping fingers 343 clamp the blood sampling tube cap, the cap pulling step 3432 is located below the blood sampling tube cap and clings to the blood sampling tube body, the positioning cavity 3431 is further provided with a circular hole 3433, and the circular hole 3433 is used for observing whether the blood sampling tube cap is clamped in the blood sampling tube cap clamping fingers 343. The top of the positioning cavity 3431 is further provided with an arc-shaped cap-pulling movable cavity 3434, and the cap-pulling movable cavity 3434 is used for accommodating the top of the blood collection tube cap.

In the above technical scheme: a code scanner 3415 is fixed on the cap pulling back plate 348, the height of the code scanner 3415 is consistent with the height of a bar code on the blood sampling tube clamped by the blood sampling tube cap clamping finger 343, the batching rotating mechanism 39 drives the blood sampling tube to rotate, and the code scanner 3415 reads the bar code information on the blood sampling tube to complete code scanning.

In the above technical scheme: one side of the cover pulling back plate 348 is further fixed with a pipetting device 342 through a connecting plate 3416, the pipetting device 342 comprises a pipetting guide block 3422 and a pipetting 349, the side edge of the pipetting guide block 3422 is fixed with a pipetting guide rail 3423, the pipetting guide rail 3423 is provided with a pipetting slide block 3424, and the pipetting 349 is fixed on the pipetting slide block 3424. The pipetting slide 3424 is driven by a second driving mechanism and can move along the pipetting guide 3423. The second driving mechanism is a first screw rod transmission mechanism, the first screw rod transmission mechanism comprises a third screw rod and a liquid-moving motor 3421, the screw rod has the function of converting rotary motion into linear motion, the third screw rod comprises a third screw rod and a third nut in threaded fit with the third screw rod, and the third screw rod is connected with a rotating shaft of the liquid-moving motor 3421 through a coupler. A fifth induction rod is fixed on the pipetting slide block 3424 and connected with a third nut. A fifth cavity for installing the first screw rod transmission mechanism is formed in the pipetting guide block 3422, wherein the third screw rod is located in the fifth cavity. The pipetting motor 3421 is mounted on the pipetting guide block 3422 or the frame of the blood testing machine. In this embodiment, the pipetting motor 3421 is mounted on the pipetting guide block 3422, so that the influence of vibration of other parts of the blood testing machine on the operation of the pipetting motor 3421 is reduced; meanwhile, the pipetting motor 3421 and other components of the pipetting device 342 are combined to form an independent module, so that the assembly and disassembly are convenient. The pipetting guide block 3422 is provided with a fifth sliding hole which is communicated with the fifth cavity, and a fifth induction rod passes through the fifth sliding hole and is connected with a third nut. The first screw rod transmission mechanism is driven by the liquid transferring motor 3421, the noise is low, the third screw rod is matched with the liquid transferring motor 3421 to realize rigid transmission, and the transmission is timely and rapid.

In the above technical scheme: the pipette 349 includes a suction head detachment guide block 3495 fixed on the pipette slide block 3424, a suction head fixing tube 3492 is fixed at the bottom of the suction head detachment guide block 3495, a fixing inclined plane 34921 matched with the suction head is formed at the bottom of the suction head fixing tube 3492, a suction head detachment tube 3493 is sleeved on the suction head fixing tube 3492, and the fixing inclined plane 34921 exposes the bottom of the suction head detachment tube 3493. A transmission rod 3494 is also provided at the bottom of the suction head detachment guide 3495. As shown in fig. 8, a buffer spring 3496 is sleeved on the driving rod 3494, an upper limit block 34941 and a lower limit block 34942 are formed at the bottom of the driving rod 3494, and a locking groove is formed between the upper limit block 34941 and the lower limit block 34942. As shown in fig. 8 and 9, an extension block 3497 is fixed on the top of the suction head detachment tube 3493, the extension block 3497 includes a connection portion 34971 fixed with the suction head detachment tube 3493, a fixture block 34972 in a C shape as a whole, and a handle portion 34973, and the fixture block 34972 is further provided with a bending groove 34974. The bottom of the transmission rod 3494 extends out of the suction head separation guide block 3495, and the clamping block part 34972 clamps the clamping groove, so that the transmission rod 3494 and the suction head separation pipe 3493 are installed. When the suction head is detached from the tube 3493, the hand portion 34973 is held by hand to apply force to separate the block portion 34972 from the slot, and the bending groove 34974 allows the block portion 34972 to be opened at a certain angle, so as to facilitate detachment of the suction head from the tube 3493. The transmission rod 3494 is driven by the third driving mechanism to move up and down. The third driving mechanism is a second screw rod transmission mechanism, the second screw rod transmission mechanism comprises a fourth screw rod and a suction head separation motor 3491, the screw rod has the function of converting rotary motion into linear motion, the fourth screw rod comprises a fourth screw rod and a fourth nut in threaded fit with the fourth screw rod, and the fourth screw rod is connected with a rotating shaft of the suction head separation motor 3491 through a coupler. A sixth sensing rod is fixed on the driving rod 3494, and the sixth sensing rod is connected to the fourth nut. A sixth cavity for installing a second screw transmission mechanism is formed in the suction head detachment guide block 3495, wherein the fourth screw is located in the sixth cavity. A tip detachment motor 3491 is installed on the tip detachment guide block 3495 or the frame of the blood testing machine. In this embodiment, the suction head detachment motor 3491 is installed on the suction head detachment guide block 3495, so as to reduce the vibration influence of other parts of the blood testing machine when the suction head detachment motor 3491 works; meanwhile, the suction head is separated from the motor 3491 and is combined with other components of the liquid removing device 349 to form an independent module, so that the installation and the disassembly are convenient. The suction head separation guide block 3495 is provided with a sixth sliding hole, the sixth sliding hole is communicated with the sixth cavity, and a sixth induction rod penetrates through the sixth sliding hole and is connected with a fourth nut. The second screw rod transmission mechanism is driven by a suction head separation motor 3491, the noise is low, the fourth screw rod is matched with the suction head separation motor 3491 to realize rigid transmission, and the transmission is timely and rapid.

When the suction head needs to be installed, the material taking device 2 clamps the suction head and places the suction head on the suction head positioning mechanism 35, the suction head positioning mechanism 35 drives the suction head to move to a position right below the suction head fixing pipe 3492, and the second driving mechanism drives the liquid removing device 349 to move downwards until the fixing inclined surface 34921 is pressed into the suction head, so that the installation of the suction head is completed. The material taking device 2 moves each material to a position right below the suction head for pipetting.

After the liquid is transferred, the used suction head needs to be automatically dropped off, the third driving mechanism drives the transmission rod 3494 to move downwards, the suction head separation tube 3493 is also driven to move downwards, and the suction head is also driven to move downwards because the bottom of the suction head separation tube 3493 has a certain contact surface with the head of the suction head, and the fixed inclined surface 34921 is separated from the suction head.

In the above technical scheme: a blood collection tube guide block 346 is fixed to the lower part of the cap removing back plate 348, an L-shaped cap removing slider 3413 is provided on the side of the blood collection tube guide block 346, and the cap removing slider 3413 is driven by the first drive mechanism and can move along the blood collection tube guide block 346. The first driving mechanism is a third screw rod transmission mechanism, the third screw rod transmission mechanism comprises a first screw rod and a blood collection tube moving motor 345, the screw rod has the function of converting rotary motion into linear motion, the first screw rod comprises a first screw rod and a first nut in threaded fit with the first screw rod, and the first screw rod is connected with a rotating shaft of the blood collection tube moving motor 345 through a coupler. A first sensing rod is fixed on the cap-pulling slider 3413, and the first sensing rod is connected with the first nut. A first cavity for installing a third screw rod transmission mechanism is formed in the blood collection tube guide block 346, wherein the first screw rod is positioned in the first cavity. The blood collection tube moving motor 345 is mounted on the blood collection tube guide block 346 or the frame of the blood testing machine. In this embodiment, the blood collection tube moving motor 345 is mounted on the blood collection tube guide block 346, so that the influence of vibration of other parts of the blood testing machine on the operation of the blood collection tube moving motor 345 is reduced; meanwhile, the blood collection tube moving motor 345 and other parts of the cover-pulling code-scanning mechanism 34 are combined to form an independent module, which is convenient to install and disassemble. The last system of heparin tube guide block 346 has first slide opening, and first slide opening and first cavity intercommunication, first response pole pass first slide opening and be connected with first nut. The third screw rod transmission mechanism is driven by the blood sampling tube moving motor 345, the noise is low, the first screw rod is matched with the blood sampling tube moving motor 345 to realize rigid transmission, and the transmission is timely and rapid. Install first spacing sensor, first origin sensor and the spacing sensor of second on the heparin tube guide block 346, first spacing sensor, the spacing sensor of second are fixed respectively at the both ends of a heparin tube guide block 346 side, and first origin sensor is located between the spacing sensor of first spacing sensor and second. The first limit sensor, the first origin sensor and the second limit sensor are used for sensing the first sensing rod. Blood sampling pipe moving motor 345 drives first induction rod earlier and moves to and first initial point sensor cooperation, and when first initial point sensor sensed first induction rod, blood sampling pipe moving motor 345 reset to the initial point. Then, the blood collection tube moving motor 345 continues to drive the cap-pulling slide 3413 and the first induction rod to move; in the above process, when the first limit sensor senses the first sensing rod, the blood collection tube moving motor 345 stops moving; when the second limit sensor senses the first sensing rod, the blood collection tube moving motor 345 stops moving, so that the first limit sensor and the second limit sensor limit the movement of the cap pulling slide block 3413.

As an alternative to the first, second, and third screw rod transmission mechanisms, the second, third, and first driving mechanisms may also be any one of an oil cylinder, an air cylinder, a synchronizing wheel transmission mechanism, a chain transmission mechanism, and a conforming transmission mechanism. Since the connection relationships among the components in the second, third and first driving mechanisms are the same, in order to avoid too much substantial duplication of the description without affecting the understanding of the technical solution, a general expression will be adopted when the connection relationships of the alternative solutions are described below, that is: pipetting slide 3424, driving rod 3494, cap-removing slide 3413 are collectively called a slide, pipetting guide block 3422, tip detachment guide block 3495, blood collection tube guide block 346 are collectively called a guide block, and pipetting motor 3421, tip detachment motor 3491 and blood collection tube movement motor 345 are collectively called a motor.

When replaced by hydro-cylinder or cylinder, hydro-cylinder or cylinder install on the guide block or the frame of blood test machine, hydro-cylinder or cylinder directly or indirectly drive the slider and remove, when adopting this scheme, can not need the initial point inductor, only need install on the slider with spacing sensor complex response thing. The advantage of this scheme is that the drive connection is simple in construction.

When the synchronous wheel transmission mechanism is used for replacing the synchronous wheel transmission mechanism, as shown in fig. 12, the synchronous wheel transmission mechanism comprises a motor, a first transmission shaft 01 and a second transmission shaft 02, the first transmission shaft 01 is connected with a rotating shaft of the motor, the arrangement directions of the first transmission shaft 01 and the rotating shaft of the motor are the same, the second transmission shaft 02 and the first transmission shaft 01 are arranged in parallel, first synchronous wheels are arranged on the first transmission shaft 01 and the second transmission shaft 02, and a first belt 03 is sleeved between the two first synchronous wheels. Be fixed with first connecting block 04 on the first belt 03, be fixed with the second response pole on the slider, the second response pole is connected with first connecting block 04. The transmission block is installed to the one end of guide block, and synchronizing wheel drive mechanism installs in transmission block and guide block, and wherein first transmission shaft 01 sets up in the transmission block, and the motor is installed in the frame of transmission block or blood test machine. In the embodiment, the motor is arranged on the transmission block and is perpendicular to the guide block, so that the vibration influence of other parts of the blood testing machine on the motor during working is reduced; meanwhile, the motor and other parts of the synchronous wheel transmission mechanism are combined to form an independent module, so that the assembly and disassembly are convenient. A second cavity is formed in the guide block, and the second transmission shaft 02 is located at one end, far away from the transmission block, of the second cavity. A second sliding hole is formed in the guide block and communicated with the second cavity, and the second induction rod penetrates through the second sliding hole and is connected with the first connecting block 04. The advantages of the synchronous wheel transmission mechanism are the same as that of the screw rod transmission mechanism, and the synchronous wheel transmission mechanism is driven by a motor and has low noise; compared with a screw rod transmission mechanism, the flexible transmission mechanism has the advantages that the motor is matched with the first transmission shaft 01, the second transmission shaft 02 and the first belt 03 to realize flexible transmission, the flexible transmission mechanism is safer, the motor is perpendicular to the guide block through the transmission block, the transverse size can be reduced, the vacant space of the vertical height is effectively utilized, and further the occupied space of the whole machine can be reduced.

When the chain transmission mechanism is used for replacing the chain transmission mechanism, the chain transmission mechanism comprises a motor, a first gear and a second gear, a gear shaft of the first gear is connected with a rotating shaft of the motor, the arrangement directions of the gear shaft and the rotating shaft are the same, and a gear shaft of the second gear is arranged in parallel with a gear shaft of the first gear. A chain is sleeved between the gear wheel disc of the first gear and the gear wheel disc of the second gear, a fourth connecting block is fixed on the chain, a third induction rod is fixed on the sliding block, and the third induction rod is connected with the fourth connecting block. The transmission block is installed to the one end of guide block, and chain drive installs in transmission block and guide block, and wherein first gear setting is in the transmission block, and the motor is installed in the frame of transmission block or blood test machine. In the embodiment, the motor is arranged on the transmission block and is perpendicular to the guide block, so that the vibration influence of other parts of the blood testing machine on the motor during working is reduced; meanwhile, the motor and other parts of the chain transmission mechanism are combined to form an independent module, so that the assembly and disassembly are convenient. A third cavity is formed in the guide block, and the second gear is located at one end, far away from the transmission block, of the third cavity. And a third sliding hole is formed in the guide block and communicated with the third cavity, and a third induction rod penetrates through the third sliding hole and is connected with a fourth connecting block. The chain transmission mechanism has the same advantages as the screw rod transmission mechanism, is driven by a motor and has low noise; compared with a screw rod transmission mechanism, the flexible transmission mechanism has the advantages that the motor is matched with the first gear, the second gear and the chain to realize flexible transmission, the flexible transmission mechanism is safer, the motor is perpendicular to the guide block through the transmission block, the transverse size can be reduced, the vacant space of the vertical height is effectively utilized, and the occupied space of the whole machine can be reduced.

When replaced by a compound transmission, as shown in fig. 13, the compound transmission includes a motor, a second lead screw, a third transmission shaft 93, and a fourth transmission shaft 94, the lead screw functioning to convert a rotational motion into a linear motion. The second lead screw includes second screw 91 and with second screw 91 screw-thread fit's second nut 92, third transmission shaft 93 is connected with the pivot in the motor, fourth transmission shaft 94 is connected with second screw 91, all is provided with the second synchronizing wheel on third transmission shaft 93 and the fourth transmission shaft 94, two the cover is equipped with second belt 95 between the second synchronizing wheel. A fourth sensing rod 96 is fixed on the cap pulling slide block 3413, and the fourth sensing rod 96 is connected with the second nut 92. The guide block is provided with a transmission block, the composite transmission mechanism is arranged in the transmission block and the guide block, the third transmission shaft 93 and the fourth transmission shaft 94 are positioned in the transmission block, the guide block is internally provided with a fourth cavity, and the second screw rod is positioned in the fourth cavity. The motor is arranged on the transmission block or the frame of the blood testing machine. In the embodiment, the motor is arranged on the transmission block and is parallel to the guide block, so that the vibration influence of other parts of the blood testing machine on the motor during working is reduced; meanwhile, the motor and other parts of the composite transmission mechanism are combined to form an independent module, so that the motor is convenient to mount and dismount. A fourth sliding hole is formed in the guide block and communicated with the fourth cavity, and a fourth induction rod 96 penetrates through the fourth sliding hole and is connected with the second nut 92. The motor is started, the rotating shaft of the motor drives the second screw 91 to rotate through the third transmission shaft 93, the second belt 95 and the fourth transmission shaft 94, the second screw 91 drives the second nut 92 to axially move along the second screw 91, and the second nut 92 drives the cap-pulling sliding block 3413 and the fourth induction rod 96 to move along the guide block. The composite transmission mechanism has the advantages that the composite transmission mechanism is the same as the screw rod transmission mechanism, is driven by a motor and has low noise; compared with a screw rod transmission mechanism, the motor has the advantages that the motor is arranged in parallel to the guide block through the transmission block, the transverse size can be reduced, the vacant space of the vertical height is effectively utilized, and the occupied space of the whole machine can be reduced.

In the above technical scheme: a second electric clamping jaw 500 for clamping the blood collection tube body is fixed at the longitudinal position of the cap pulling slide block 3413, positioning clamping fingers 347 are mounted on clamping jaw piston rods at two sides of the second electric clamping jaw 500, and the positioning clamping fingers 347 are positioned right below the blood collection tube cap clamping fingers 343. The opposite sides of the heads of the two positioning clamping fingers 347 are provided with arc-shaped blood sampling tube body clamping grooves 3471, and elastic bodies are arranged in the blood sampling tube body clamping grooves 3471. When the location presss from both sides and gets blood sampling tube shaft when pressing from both sides finger 347 clamp, the elastomer extrusion blood sampling tube shaft makes to press from both sides and gets more firmly to because the elastomer has elasticity, can not appear excessively squeezing the phenomenon that leads to the shaft to break to blood sampling tube shaft. The elastomer in the embodiment is super glue (also called polyurethane PU elastomer), and has the advantages of good strength, small compression deformation and the like.

In the above technical scheme: a cap-pulling sensor 3414 is further mounted on the cap-pulling back plate 348, the cap-pulling sensor 3414 is a photoelectric sensor, and the cap-pulling sensor 3414 corresponds to the circular hole 3433.

When the number of the blood sampling tubes is scanned, the material taking device 2 clamps the blood sampling tubes and moves to between the blood sampling tube cover clamping fingers 343 of the cover pulling and number scanning mechanism 34, and the first electric clamping jaw 400 drives the blood sampling tube cover clamping fingers 343 to clamp the blood sampling tubes; the batching rotating mechanism 39 on the top of the pulling back plate 348 starts to operate, the blood collection tube starts to rotate, and the code scanner 3415 starts to read the bar code information on the blood collection tube; and stopping the movement of the burdening rotating motor 391 until the code scanning is finished, so that the code scanning is finished.

When the blood collection tube is pulled out, the material taking device 2 moves the blood collection tube between the two blood collection tube cap clamping fingers 343, and the first electric clamping jaw 400 drives the blood collection tube cap clamping fingers 343 to clamp the blood collection tube cap. First actuating mechanism drives and pulls out lid slider 3413 on the heparin tube guide block 346 and shifts up, pulls out lid slider 3413 and drives location clamp finger 347 and shifts up, and the tank bottom that the groove 3471 was got to the heparin tube body clamp is located the bottom of heparin tube body, and second electronic clamping jaw 500 drives location clamp finger 347 and gets the heparin tube body clamp. Then, the first driving mechanism drives the cap-pulling slider 3413 on the blood collection tube guide block 346 to move downwards, the cap-pulling slider 3413 drives the positioning clamping finger 347 and the blood collection tube body inside the positioning clamping finger 347 to move downwards, and the blood collection tube cap is limited by the cap-pulling step 3432 so as to be separated from the blood collection tube body and remain in the positioning cavity 3461 of the blood collection tube cap clamping finger 343, so that the cap-opening of the blood collection tube is realized. The material mixing and rotating mechanism 39 on the top of the cap pulling back plate 348 drives the first electric clamping jaw 400 to rotate 90 degrees, so that the cap pulling sensor 3414 faces the circular hole 3433, the cap pulling sensor 3414 senses whether a blood sampling tube cap is retained in the blood sampling tube cap clamping finger 343 through the circular hole 3433, and if the cap pulling sensor 3414 senses that the blood sampling tube cap indicates that the blood sampling tube cap is successfully pulled, the next step can be performed; if the cartridge decapping is not successful, the next step cannot be performed and the system alarms to notify the human for processing.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concept of the present invention should fall within the scope of the present invention.

Claims

1. The cover pulling and code scanning mechanism of the blood testing machine is characterized by comprising a cover pulling back plate (348), wherein a batching rotating mechanism (39), a code scanner (3415) and a first driving mechanism are sequentially arranged on the cover pulling back plate (348) from top to bottom, a liquid transfer device (342) is further connected onto the cover pulling back plate (348), a first electric clamping jaw (400) used for clamping a blood collection tube cover is connected to the bottom of the batching rotating mechanism (39), a second electric clamping jaw (500) used for clamping a blood collection tube body is connected onto the first driving mechanism, and the first electric clamping jaw (400) and the second electric clamping jaw (500) respectively comprise a clamping jaw electric cylinder (101) and clamping jaw piston rods (102) located on two sides of the clamping jaw electric cylinder (101);

all install blood sampling tube lid on the clamping jaw piston rod of first electronic clamping jaw (400) both sides and press from both sides and indicate (343), all install location clamping jaw (347) on the clamping jaw piston rod of second electronic clamping jaw (500) both sides, location clamping jaw (347) are located under blood sampling tube lid presss from both sides and indicates (343), blood sampling tube lid presss from both sides the tube cap who gets the blood sampling tube that indicates (343), batching rotary mechanism (39) drive blood sampling tube lid press from both sides and indicate (343) and blood sampling tube lid rotation, the body of a tube of blood sampling tube is got to location clamping jaw (347), first actuating mechanism drives location clamping jaw (347) and blood sampling tube body reciprocates.

2. The cap-removing and code-scanning mechanism of the blood testing machine according to claim 1, wherein a blood collection tube guide block (346) is fixed to a lower portion of the cap-removing back plate (348), a cap-removing slider (3413) is provided on the blood collection tube guide block (346), the cap-removing slider (3413) is driven by the first driving mechanism and is movable along the blood collection tube guide block (346), and the second electrically-driven clamping jaw (500) is mounted on the cap-removing slider (3413).

3. The cover-pulling code-scanning mechanism of the blood testing machine according to claim 2, wherein the first driving mechanism is any one of an oil cylinder, an air cylinder, a screw rod transmission mechanism, a synchronous wheel transmission mechanism, a chain transmission mechanism or a compound transmission mechanism;

the screw rod transmission mechanism comprises a first screw rod and a first motor, the first screw rod comprises a first screw rod and a first nut in threaded fit with the first screw rod, the first screw rod is connected with a rotating shaft of the first motor through a coupler, a first induction rod is fixed on the cover pulling sliding block (3413), and the first induction rod is connected with the first nut; a first cavity for installing the screw rod transmission mechanism is formed in the blood collection tube guide block (346), the first screw rod is positioned in the first cavity, the first motor is installed on the blood collection tube guide block (346) or a frame of a blood testing machine, a first sliding hole is formed in the blood collection tube guide block (346), the first sliding hole is communicated with the first cavity, and the first induction rod penetrates through the first sliding hole and is connected with the first nut;

the synchronous wheel transmission mechanism comprises a second motor, a first transmission shaft (01) and a second transmission shaft (02), the first transmission shaft (01) is connected with a rotating shaft of the second motor, the arrangement directions of the first transmission shaft and the second transmission shaft are the same, the second transmission shaft (02) is arranged in parallel with the first transmission shaft (01), the first transmission shaft (01) and the second transmission shaft (02) are both provided with first synchronous wheels, a first belt (03) is sleeved between the two first synchronous wheels, a first connecting block (04) is fixed on the first belt (03), a second induction rod is fixed on the cover pulling sliding block (3413), and the second induction rod is connected with the first connecting block (04); a blood collection tube transmission block is installed at one end of the blood collection tube guide block (346), the synchronous wheel transmission mechanism is installed in the blood collection tube transmission block and the blood collection tube guide block (346), a first transmission shaft (01) is arranged in the blood collection tube transmission block, the second motor is installed on the blood collection tube transmission block and is perpendicular to the blood collection tube guide block (346) or is installed on a rack of a blood testing machine, a second cavity is formed in the blood collection tube guide block (346), the second transmission shaft (02) is located at one end, away from the blood collection tube transmission block, of the second cavity, a second sliding hole is further formed in the blood collection tube guide block (346) and is communicated with the second cavity, and the second induction rod penetrates through the second sliding hole and is connected with the first connection block (04);

the chain transmission mechanism comprises a third motor, a first gear and a second gear, a gear shaft of the first gear is connected with a rotating shaft of the third motor, the arrangement directions of the gear shaft of the first gear and the rotating shaft of the third motor are the same, a gear shaft of the second gear is arranged in parallel with the gear shaft of the first gear, a chain is sleeved between a gear disc of the first gear and a gear disc of the second gear, a second connecting block is fixed on the chain, a third induction rod is fixed on the cover pulling sliding block (3413), and the third induction rod is connected with the second connecting block; a blood collection tube transmission block is installed at one end of the blood collection tube guide block (346), the chain transmission mechanism is installed in the blood collection tube transmission block and the blood collection tube guide block (346), a first gear is arranged in the blood collection tube transmission block, the third motor is installed on the blood collection tube transmission block and is perpendicular to the blood collection tube guide block (346) or is installed on a rack of a blood testing machine, a third cavity is formed in the blood collection tube guide block (346), the second gear is located at one end, far away from the blood collection tube transmission block, of the third cavity, a third sliding hole is further formed in the blood collection tube guide block (346) and is communicated with the third cavity, and the third induction rod penetrates through the third sliding hole and is connected with the second connecting block;

the composite transmission mechanism comprises a fourth motor, a second screw rod, a third transmission shaft (93) and a fourth transmission shaft (94), the second screw rod comprises a second screw rod (91) and a second nut (92) in threaded fit with the second screw rod (91), the third transmission shaft (93) is connected with a rotating shaft in the fourth motor, the fourth transmission shaft (94) is connected with the second screw rod (91), second synchronizing wheels are arranged on the third transmission shaft (93) and the fourth transmission shaft (94), a second belt (95) is sleeved between the second synchronizing wheels, a fourth induction rod (96) is fixed on the cover pulling slide block (3413), and the fourth induction rod (96) is connected with the second nut (92); a blood collection tube driving block is installed on the blood collection tube guiding block (346), the compound driving mechanism is installed in the blood collection tube driving block and the blood collection tube guiding block (346), a third driving shaft (93) and a fourth driving shaft (94) are located in the blood collection tube driving block, a fourth cavity is formed in the blood collection tube guiding block (346), the second screw rod is located in the fourth cavity, the fourth motor is installed on the blood collection tube driving block and is arranged in parallel to the blood collection tube guiding block (346) or is installed on a rack of a blood testing machine, a fourth sliding hole is formed in the blood collection tube guiding block (346) and is communicated with the fourth cavity, and the fourth induction rod (96) penetrates through the fourth sliding hole and is connected with the second nut (92);

install first spacing sensor, origin sensor and the spacing sensor of second on heparin tube guide block (346), first spacing sensor, the spacing sensor of second are fixed respectively the both ends of a side of heparin tube guide block (346), origin sensor is located between first spacing sensor and the spacing sensor of second.

4. The cover-pulling code-scanning mechanism of the blood testing machine according to claim 3, wherein the pipetting device (342) is fixed on the cover-pulling back plate (348) through a connecting plate (3416), the pipetting device (342) comprises a pipetting guide block (3422) and a pipetting device (349), a pipetting guide rail (3423) is fixed on a side of the pipetting guide block (3422), a pipetting slide block (3424) is arranged on the pipetting guide rail (3423), the pipetting device (349) is fixed on the pipetting slide block (3424), and the pipetting slide block (3424) is driven by a second driving mechanism and can move along the pipetting guide rail (3423).

5. The cover-pulling code-scanning mechanism of blood testing machine according to claim 4, wherein said second driving mechanism is any one of an oil cylinder, an air cylinder, a screw rod transmission mechanism, a synchronous wheel transmission mechanism, a chain transmission mechanism or a compound transmission mechanism.

6. The cover-pulling and code-scanning mechanism of the blood testing machine according to claim 4, wherein the pipette (349) comprises a suction head detachment guide block (3495) fixed on the pipette slide block (3424), a suction head fixing tube (3492) is fixed at the bottom of the suction head detachment guide block (3495), a fixing inclined plane (34921) matched with the suction head is formed at the bottom of the suction head fixing tube (3492), a suction head detachment tube (3493) is sleeved on the suction head fixing tube (3492), the fixing inclined plane (34921) penetrates through the bottom of the suction head detachment tube (3493), a transmission rod (3494) is further arranged at the bottom of the suction head detachment guide block (3495), a buffer spring (3496) is sleeved on the transmission rod (3494), an upper limit block (34941) and a lower limit block (34942) are formed at the bottom of the transmission rod (3494), and a clamping groove is formed between the upper limit block (34941) and the lower limit block (34942), an extension block (3497) is fixed to the top of the suction head separation pipe (3493), the extension block (3497) comprises a connecting portion (34971) fixed to the suction head separation pipe (3493), a clamping block portion (34972) and a handle portion (34973), the clamping block portion (34972) is further provided with a bending groove (34974), the bottom of the transmission rod (3494) extends out of the suction head separation guide block (3495), the clamping block portion (34972) clamps the clamping groove and fixes the suction head separation pipe (3493) to the transmission rod (3494), and the transmission rod (3494) is driven by a third driving mechanism to move up and down.

7. The cover-pulling code-scanning mechanism of blood testing machine according to claim 6, wherein said third driving mechanism is any one of an oil cylinder, an air cylinder, a screw rod transmission mechanism, a synchronous wheel transmission mechanism, a chain transmission mechanism or a compound transmission mechanism.

8. The cover-pulling code-scanning mechanism of the blood testing machine according to claim 1, wherein the lower portions of the opposite sides of the two blood-collecting tube cover clamping fingers (343) are respectively provided with a positioning cavity (3431), the bottom of the positioning cavity (3431) is provided with a cover-pulling step (3432), and the top of the positioning cavity (3431) is further provided with a cover-pulling movable cavity (3434);

one side of the two positioning clamping jaws (347) opposite to the head parts is provided with a blood sampling tube body clamping groove (3471), and an elastic body is arranged in the blood sampling tube body clamping groove (3471).

9. The cover-pulling code-scanning mechanism of the blood testing machine according to claim 8, wherein a cover-pulling sensor (3414) is further mounted on the cover-pulling back plate (348), a circular hole (3433) is further formed in the positioning cavity (3431), and the cover-pulling sensor (3414) corresponds to the circular hole (3433).

10. The cover-pulling code-scanning mechanism of the blood testing machine according to claim 1, characterized in that the batching rotating mechanism comprises a batching rotating motor (391), a front synchronizing shaft (392), a rear synchronizing shaft (393) and a motor top plate (394), wherein one end of the motor top plate (394) is provided with a mounting hole (3941), two sides of the mounting hole (3941) are provided with mounting steps (3942), the mounting steps (3942) are provided with a plurality of bolt holes (3943), a motor connecting plate (395) is arranged in the mounting hole (3941), the batching rotating motor (391) is fixed at the bottom of the motor connecting plate (395), a rotor of the batching rotating motor (391) passes through the motor connecting plate (395) and is connected with the rear synchronizing shaft (393), two sides of the motor connecting plate (395) are provided with mounting parts (3951), and a moving strip-shaped hole (3952) is arranged on the mounting part (3951), the mounting part (3951) is located on the mounting step (3941), a bolt penetrates through the movable strip-shaped hole (3952) and the bolt hole (3943) and is matched with a nut to mount the motor connecting plate (395) on the motor top plate (394), a motor top block (396) is further fixed on one side, close to the middle part of the motor top plate (394), of the mounting hole (3941), a rotating shaft bearing seat (397) is fixed at the other end of the motor top plate (394), a rotating shaft (398) is installed in the rotating shaft bearing seat (397), the rotating shaft (398) is fixed with the front synchronizing shaft (392), the bottom of the rotating shaft (398) penetrates through the motor top plate (394) and is connected with the first electric clamping jaw (400), a synchronous belt (399) is sleeved between the front synchronizing shaft (392) and the rear synchronizing shaft (393), and a batching origin sensor (3910) is fixed in the middle part of the motor top plate (394), the head of the rotating shaft (398) penetrates through the front synchronous shaft (392) and is fixedly provided with a batching origin sensing sheet (3911) matched with the batching origin sensor (3910), the top of the rotating shaft (398) is further provided with an electric slip ring (3912), a supporting sheet (3913) is supported on the rotating bearing seat (397) through two supporting rods, and the electric slip ring (3912) is positioned on the supporting sheet (3913).

11. The cover-pulling code-scanning mechanism of the blood testing machine according to claim 1, wherein one end surface of the clamping jaw electric cylinder (101) is provided with a concave clamping jaw sliding groove (1011), groove walls on two sides of the clamping jaw sliding groove (1011) are provided with convex sliding guide strips (1012), the middle of each sliding guide strip (1012) is provided with a limiting rod (1013), the bottom of each clamping jaw piston rod (102) is provided with a sliding guide foot (1021), one side surface of each sliding guide foot (1021) is provided with a sliding guide groove (1022), the bottom of each sliding guide groove (1022) is provided with a limiting hole (1023), the sliding guide feet (1021) of the two clamping jaw piston rods (102) are both located in the clamping jaw sliding groove (1011), each sliding guide strip (1012) is located in the sliding guide groove (1022), and the limiting rod (1013) passes through the limiting hole (1023).

12. The cover-pulling code-scanning mechanism of a blood testing machine according to claim 1, wherein cover-pulling side plates (3418) are further provided on both sides of the cover-pulling back plate (348).