Test tube shaking device for blood routine blood drawing

Abstract

The invention discloses a test tube shaking device for conventional blood drawing, belongs to the technical field of test tube shaking, and aims to solve the problems that the whole device cannot be used and a plurality of test tubes with different thicknesses cannot be independently shaken at the same time when the conventional test tube shaking device is stuck and the like in the use process. A platform is fixedly arranged on a base, a servo motor is arranged in the platform, a magnetic drive assembly is fixedly connected to an output shaft of the servo motor, a plurality of piston assemblies and shaking assemblies are fixedly arranged on the top face of the base, and the piston assemblies and the shaking assemblies are movably connected through connecting assemblies. And a clamping assembly is fixedly arranged on the shaking assembly. The situation that the whole device cannot operate due to the phenomena of clamping and the like in the using process of the shaking device is avoided, and meanwhile, test tubes with different thicknesses can be shaken at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of test tube shaking, in particular to a test tube shaking device for routine blood drawing. Background Art

[0002] A routine blood test mainly counts and performs morphological analysis on the cell components in the blood. A routine blood test generally involves drawing venous blood or peripheral blood for testing. When the coagulation function of the blood needs to be tested, an anticoagulant is added to the test tube. At this time, the test tube needs to be shaken to mix the anticoagulant and the blood evenly. When there are a large number of blood samples, manual shaking by medical staff is difficult to achieve. Therefore, a test tube shaking device is needed to shake the blood sample during this process.

[0003] The current test tube shaking device for routine blood drawing has been widely used in the medical field, but it still has many defects, specifically as follows: the traditional test tube shaking device generally uses an eccentric wheel driven by a motor to rotate, and the eccentric motion of the eccentric wheel is converted into a reciprocating or circular shaking power, causing the test tube fixed on the platform to shake. This shaking mode is relatively simple, and can only shake multiple test tubes of the same thickness at a time. Since the shaking force and frequency required for test tubes of different thicknesses are inconsistent, when encountering test tubes of different thicknesses, they must be shaken in batches, which is not only difficult to use, but also has a long service life. The process is cumbersome and the sample processing efficiency is low, which can easily affect the subsequent detection results. In addition, if the existing test tube shaking device gets stuck during use, the entire device will become unusable, which will in turn cause damage to a batch of samples taken, affecting the normal progress of subsequent detection operations. In addition, whether one or multiple test tubes are placed on the traditional test tube shaking device, the motor will drive the entire platform to shake through the eccentric wheel, and it is impossible to shake multiple test tubes of different thicknesses independently at the same time. Not only does it increase power consumption, but it also limits its flexibility of use.

[0004] In view of the above problems, a test tube shaking device for routine blood drawing is proposed. Summary of the Invention

[0005] The object of the present invention is to provide a test tube shaking device for routine blood drawing. By adopting this device, the problem that the traditional test tube shaking device in the above background must be shaken in batches when encountering test tubes of different thicknesses, the sample processing efficiency is low, and the subsequent detection effect is affected, and the problem that the existing test tube shaking device becomes stuck during use, making the entire device unusable and causing damage to a batch of samples taken; in addition, the problem that the traditional test tube shaking device, regardless of whether one or multiple test tubes are placed, the motor will drive the entire platform to shake through the eccentric wheel, and it is impossible to shake multiple test tubes of different thicknesses independently at the same time, which not only increases power consumption but also limits the flexibility of use.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a test tube shaking device for routine blood drawing, comprising a base and a control panel arranged on the base, a platform fixedly arranged on the base, a test tube rack fixedly arranged on the platform, a servo motor arranged inside the platform, a magnetic drive assembly fixedly connected to the output shaft of the servo motor, a plurality of piston assemblies and shaking assemblies fixedly arranged on the top surface of the base, and the plurality of piston assemblies and shaking assemblies are evenly distributed on the circumference of the magnetic drive assembly, the piston assembly and the shaking assembly are movably connected via a connecting assembly, a clamping assembly fixedly arranged on the shaking assembly, a test tube is clamped inside the clamping assembly, a plurality of brake assemblies fixedly arranged on the shaking assembly, and a distance measuring assembly is arranged inside the clamping assembly; The piston assembly includes a bracket fixedly mounted on the top surface of the base, a piston cylinder fixedly mounted on the bracket, a magnetic column slidably mounted inside the piston cylinder, a fixing ring fixedly mounted on one end of the magnetic column close to the shaking assembly, and the side wall of the fixing ring is elastically connected to the side wall of the piston cylinder by a spring.

[0007] Furthermore, the base includes a base body, a top surface of the base body is provided with a mounting groove, and the servo motor is fixedly mounted inside the mounting groove.

[0008] Furthermore, the platform includes a platform body fixedly mounted on the top surface of the base body, a plurality of clearance grooves are provided on the top surface of the platform body, and the clamping components are arranged through the interior of the clearance grooves.

[0009] Furthermore, the magnetic drive assembly includes a turntable fixedly connected to the output shaft of the servo motor, and a plurality of permanent magnets are fixedly mounted on the circumferential side wall of the turntable. The plurality of permanent magnets are installed in a circular array. The number of permanent magnets is consistent with the number of magnetic columns, and there is a magnetic repulsion force between the permanent magnets and the magnetic columns.

[0010] Furthermore, the shaking assembly includes a support rod fixedly mounted on the top surface of the base body, a plurality of positioning frames fixedly mounted on the circumferential side wall of the support rod, a flywheel is arranged above the support rod, an annular groove is opened on the flywheel, and the clamping part on the positioning frame is slidably arranged in the annular groove.

[0011] Furthermore, the flywheel includes a flywheel body, a pair of counterweights are symmetrically fixedly installed on the circumferential side walls of the flywheel body, an eccentric shaft is fixedly installed on the top surface of the flywheel body, and a clamping assembly is fixedly installed on the top surface of the eccentric shaft. A plurality of snap-in holes are opened on the bottom surface of the flywheel body, and the plurality of snap-in holes are linearly arranged from the edge of the flywheel body toward the center of the flywheel body. One end of the connecting assembly forms a snap-in relationship with the snap-in hole, and the other end of the connecting assembly is connected to the side wall of the fixed ring.

[0012] Furthermore, the connecting assembly includes a mounting ear fixedly mounted on the side wall of the fixing ring, a first push rod is rotatably mounted on the mounting ear, an electric push rod is embedded and fixedly mounted inside the first push rod, a second push rod is fixedly mounted on the output end of the electric push rod, a pair of limit rods are fixedly mounted on the side wall of the second push rod facing the first push rod, the two limit rods are slidably mounted inside the first push rod at one end away from the second push rod, a rotating shaft is rotatably mounted on the end of the second push rod away from the electric push rod, a semicircular clamping block is slidably mounted inside the rotating shaft, a clamping relationship can be formed between the semicircular clamping block and the clamping hole, and the semicircular clamping block and the rotating shaft are elastically connected by spring 2.

[0013] Furthermore, the clamping assembly includes a cylinder fixedly mounted on the top surface of the eccentric shaft, a accommodating cavity is opened inside the cylinder, and several pairs of slide grooves are symmetrically opened on the side walls of the inner cavity of the accommodating cavity. A slider is embedded in the inner cavity of the slide groove and slidably installed. The side wall of the slider is elastically connected to the side wall of the inner cavity of the slide groove by spring three, and an arc-shaped splint is fixedly mounted on the outer wall of the slider facing away from spring three.

[0014] Furthermore, the distance measuring component includes a distance sensor fixedly mounted on the side wall of the inner cavity of the slide groove, and a reference object is fixedly mounted on the outer wall of the slider facing the spring three, and the distance sensor and the reference object are aligned.

[0015] Furthermore, the brake assembly includes an electric telescopic column fixedly mounted on a side wall of the positioning frame, and an output end of the electric telescopic column is fixedly connected to a brake pad.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present application, even if one set of piston assemblies, shaking assemblies and connecting assemblies is stuck, it will not affect the normal operation of the remaining piston assemblies, shaking assemblies and connecting assemblies, so that the remaining samples can still be shaken normally, avoiding the phenomenon of the shaking device getting stuck during use, causing the entire device to be unable to operate, and thus preventing a batch of samples from being damaged.

[0017] 2. In the present application, the "slow-fast-slow" shaking state is realized by the magnetic repulsion between the permanent magnet and the magnetic column and the elastic force of spring 1. Compared with the traditional uniform shaking, it can enhance the dynamic shear force and strengthen the convection, thereby improving the mixing efficiency of the blood sample and the anticoagulant. In addition, compared with the uniform shaking, the "slow-fast-slow" shaking state also has a buffering protection effect, which not only improves the mixing efficiency, but also reduces the risk of hemolysis.

[0018] 3. In this application, test tubes of different thicknesses can be shaken at the same time, and the appropriate shaking force and frequency can be matched according to the test tubes of different thicknesses. There is no need to process test tubes of different thicknesses in batches, which greatly improves the sample processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a disassembled schematic diagram of the platform and base of the present invention; Figure 3 This is a disassembled schematic diagram of the servo motor and base of the present invention; Figure 4 Schematic diagram of the arrangement of multiple groups of piston assemblies, shaking assemblies and connecting assemblies of the present invention; Figure 5 for Figure 4 A magnified view of point A; Figure 6 It is a schematic diagram of the three-dimensional structure of the piston assembly and the shaking assembly of the present invention; Figure 7 Schematic diagram of the connection relationship between the piston assembly, the shaking assembly and the connecting assembly of the present invention; Figure 8 for Figure 7 Enlarged view of point B; Figure 9 is a cross-sectional schematic diagram of the piston assembly, shaking assembly, connecting assembly and clamping assembly of the present invention; Figure 10 for Figure 9 Enlarged view of point C; Figure 11 for Figure 9 Enlarged view of point D; Figure 12 for Figure 9 Enlarged view of point E.

[0020] In the figure: 1. base; 11. base body; 12. mounting slot; 2. control panel; 3. platform; 31. platform body; 32. clearance slot; 4. test tube rack; 5. servo motor; 6. magnetic drive assembly; 61. turntable; 62. permanent magnet; 7. piston assembly; 71. bracket; 72. piston cylinder; 73. magnetic column; 74. fixing ring; 75. spring 1; 8. shaking assembly; 81. support rod; 82. positioning frame; 83. flywheel; 831. flywheel body; 832. counterweight; 833. eccentric shaft; 834. snap-in hole; 8 4. Annular groove; 9. Connecting assembly; 91. Mounting ear; 92. First push rod; 93. Electric push rod; 94. Second push rod; 95. Limit rod; 96. Rotating shaft; 97. Semicircular block; 98. Second spring; 10. Clamping assembly; 101. Cylinder; 102. Accommodating chamber; 103. Slide groove; 104. Slider; 105. Third spring; 106. Arc splint; 20. Test tube; 30. Brake assembly; 301. Electric telescopic column; 302. Brake pad; 40. Distance measuring assembly; 401. Distance sensor; 402. Reference object. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In order to solve the technical problem that the existing test tube shaking device may become stuck during use, causing the entire device to be unusable, thereby causing damage to a batch of samples taken and affecting the normal operation of subsequent testing operations, such as Figures 1-12 As shown, the following preferred technical solutions are provided: like Figure 1-Figure 2 As shown, a test tube shaking device for routine blood drawing comprises a base 1 and a control panel 2 arranged on the base 1. The base 1 is used to support and fix the numerous components on the shaking device. The control panel 2 is used to input operating parameters and regulate the various components. A platform 3 is fixedly provided on the base 1, which not only maintains the neatness and aesthetics of the appearance of the shaking device, but also prevents foreign matter from entering the interior of the shaking device and protects the internal components. A test tube rack 4 is fixedly provided on the platform 3 for placing samples, such as Figure 3As shown, a servo motor 5 is provided inside the platform 3 for providing driving force for the shaking device. A magnetic drive assembly 6 is fixedly connected to the output shaft of the servo motor 5, and the servo motor 5 can drive the magnetic drive assembly 6 to rotate.

[0023] like Figure 2 As shown, a plurality of piston assemblies 7 and shaking assemblies 8 are fixedly provided on the top surface of the base 1, and the plurality of piston assemblies 7 and shaking assemblies 8 are evenly distributed around the magnetic drive assembly 6, as shown in FIG. Figure 5 and Figure 7 As shown, the piston assembly 7 and the shaking assembly 8 are movably connected via the connecting assembly 9. When the servo motor 5 drives the magnetic drive assembly 6 to rotate, the magnetic drive assembly 6 will generate intermittent magnetic repulsion on the piston assembly 7. Since the piston assembly 7 has an automatic reset function, the piston assembly 7 makes a reciprocating piston motion. Since the piston assembly 7 and the shaking assembly 8 are movably connected via the connecting assembly 9, when the piston assembly 7 makes a reciprocating piston motion, the piston assembly 7 will drive the shaking assembly 8 to rotate via the connecting assembly 9, so as to realize the subsequent sample shaking operation.

[0024] The shaking assembly 8 is fixedly provided with a clamping assembly 10, and the interior of the clamping assembly 10 holds a test tube 20, and the test tube 20 contains a blood sample. Figure 7-Figure 8 As shown, a plurality of brake assemblies 30 are fixedly provided on the shaking assembly 8, such as Figure 12 As shown, a distance measuring component 40 is provided inside the clamping component 10. When the test tube 20 is inserted into the clamping component 10, the distance measuring component 40 starts to operate and judges the thickness of the test tube 20. The distance measuring component 40 transmits the data to the control panel 2. After receiving the data, the control panel 2 analyzes and judges the data, and then calculates the shaking frequency that matches the test tube 20. If the frequency at which the piston component 7 drives the shaking component 8 to rotate through the connecting component 9 is different from the frequency required for the test tube 20 of this thickness, while keeping the speed of the servo motor 5 and the magnetic drive component 6 unchanged, the control panel 2 will control the rotation frequency of the shaking component 8 by adjusting the length of the connecting component 9, so that the rotation frequency of the shaking component 8 can match the frequency required for the test tube 20 of this thickness. The setting of the brake component 30 is used to control the shaking component 8 from rotating during the process of adjusting the length of the connecting component 9, so that the operation of adjusting the length of the connecting component 9 can be carried out smoothly.

[0025] like Figure 5-Figure 7 As shown, the piston assembly 7 includes a bracket 71 fixedly mounted on the top surface of the base 1, a piston cylinder 72 fixedly mounted on the bracket 71, a magnetic column 73 slidably mounted inside the piston cylinder 72, a fixing ring 74 fixedly mounted on one end of the magnetic column 73 close to the shaking assembly 8, and the side wall of the fixing ring 74 is elastically connected to the side wall of the piston cylinder 72 by a spring 75.

[0026] like Figure 3 As shown, the base 1 includes a base body 11 , a mounting groove 12 is formed on the top surface of the base body 11 , and the servo motor 5 is fixedly mounted inside the mounting groove 12 .

[0027] like Figure 2 As shown, the platform 3 includes a platform body 31 fixedly mounted on the top surface of the base body 11, and a plurality of clearance grooves 32 are provided on the top surface of the platform body 31. The clamping assembly 10 is arranged through the interior of the clearance grooves 32. When the shaking assembly 8 drives the clamping assembly 10 to perform horizontal circular motion, due to the opening of the clearance grooves 32, there will be no motion interference between the clamping assembly 10 and the platform body 31.

[0028] like Figure 4-Figure 5 As shown, the magnetic drive assembly 6 includes a turntable 61 fixedly connected to the output shaft of the servo motor 5, and a plurality of permanent magnets 62 are fixedly mounted on the circumferential side wall of the turntable 61. The plurality of permanent magnets 62 are mounted in a circular array. The number of permanent magnets 62 is consistent with the number of magnetic columns 73, and there is a magnetic repulsion between the permanent magnets 62 and the magnetic columns 73. When the servo motor 5 drives the permanent magnets 62 on the turntable 61 to rotate synchronously, the permanent magnets 62 and the magnetic columns 73 will be intermittently aligned. When the permanent magnets 62 and the magnetic columns 73 are in an aligned state, under the action of the magnetic repulsion, the magnetic columns 73 will move in a direction away from the permanent magnets 62. When the permanent magnets 62 and the magnetic columns 73 are in a misaligned state, the elastic force of the spring 75 resets the magnetic column 73. In this way, the reciprocating piston motion of the magnetic column 73 can be realized, and the magnetic column 73 can drive the shaking assembly 8 to rotate continuously through the connecting assembly 9, providing the basic conditions for realizing the subsequent shaking operation.

[0029] like Figure 5 As shown, the shaking assembly 8 includes a support rod 81 fixedly mounted on the top surface of the base body 11, and a plurality of positioning frames 82 are fixedly mounted on the circumferential side wall of the support rod 81. A flywheel 83 is arranged above the support rod 81, and an annular groove 84 is opened on the flywheel 83. The clamping part on the positioning frame 82 is slidably arranged in the annular groove 84, and the end of the clamping part on the positioning frame 82 is provided with a ball (not shown in the figure), and the ball (not shown in the figure) is rolled in the annular groove 84 to reduce the wear between the clamping part on the positioning frame 82 and the annular groove 84.

[0030] like Figure 6-Figure 8 and Figure 11As shown, the flywheel 83 includes a flywheel body 831, a pair of counterweights 832 are symmetrically fixedly installed on the circumferential side walls of the flywheel body 831, an eccentric shaft 833 is fixedly installed on the top surface of the flywheel body 831, and the clamping assembly 10 is fixedly installed on the top surface of the eccentric shaft 833. A plurality of snap-in holes 834 are opened on the bottom surface of the flywheel body 831, and the plurality of snap-in holes 834 are linearly arranged from the edge of the flywheel body 831 toward the center of the flywheel body 831. One end of the connecting assembly 9 forms a snap-in relationship with the snap-in hole 834, and the other end of the connecting assembly 9 is connected to the side wall of the fixing ring 74.

[0031] Specifically, if Figure 3-Figure 5 As shown, when the test tube 20 is shaken, the test tube 20 is first inserted into the clamping assembly 10 to fix the test tube 20 to prevent the test tube 20 from falling off during the shaking process. After the test tube 20 is placed, the servo motor 5 is started to drive the permanent magnet 62 on the turntable 61 to rotate synchronously, which will cause the permanent magnet 62 and the permanent magnet 62 and the magnetic column 73 to be intermittently aligned. When the permanent magnet 62 and the magnetic column 73 are in an aligned state, under the action of the magnetic repulsion, the magnetic column 73 When the piston cylinder 72 moves in a direction away from the permanent magnet 62, the spring 1 75 is in a compressed state. Since one end of the connecting component 9 forms a snap-fit ​​relationship with the snap-fit ​​hole 834, and the other end of the connecting component 9 is connected to the side wall of the fixing ring 74, the magnetic column 73 will push the flywheel body 831 to rotate through the connecting component 9 during its movement. When the permanent magnet 62 passes over the magnetic column 73, causing the permanent magnet 62 and the magnetic column 73 to be misaligned, the magnetic column 73 begins to reset under the elastic force of the spring 1 75. During the reset process, the magnetic column 73 pushes the flywheel body 831 to rotate through the connecting component 9. This cycle can make the magnetic column 73 perform a cyclic reciprocating motion inside the piston cylinder 72, thereby driving the flywheel body 831 to rotate continuously. During the continuous rotation of the flywheel body 831, it can drive the clamping assembly 10 and the test tube 20 on the eccentric shaft 833 to perform a circular motion on the horizontal plane, thereby realizing the shaking operation of the test tube 20.

[0032] Since a pair of counterweights 832 are symmetrically fixedly installed on the flywheel body 831, the inertia of the flywheel body 831 during rotation can be increased, which is conducive to the continuous rotation of the flywheel body 831; since the flywheel body 831 is only used to drive the clamping assembly 10 and the test tube 20 to perform circular motion on the horizontal plane, the load is relatively small. Therefore, in this application, it is feasible to transmit power by forming a snap-fit ​​relationship between one end of the connecting assembly 9 and the snap-fit ​​hole 834.

[0033] The existing test tube 20 shaking device, when the shaking device gets stuck or the like during use, will cause the entire device to be unusable, and will further cause a batch of samples to be damaged, affecting the normal progress of subsequent detection operations; while in the present application, multiple groups of piston assemblies 7, shaking assemblies 8 and connecting assemblies 9 are respectively provided, and each group of piston assemblies 7, shaking assemblies 8 and connecting assemblies 9 utilizes the magnetic repulsion between the permanent magnet 62 and the magnetic column 73 to achieve independent operation. Through this arrangement, even if one group of piston assemblies 7, shaking assemblies 8 and connecting assemblies 9 gets stuck, it will not affect the normal operation of the remaining piston assemblies 7, shaking assemblies 8 and connecting assemblies 9, so that the remaining samples can still be shaken normally, which can avoid the situation where the shaking device gets stuck or the like during use, causing the entire device to be unable to operate, and thus the phenomenon that all the samples taken in a batch are damaged will not occur.

[0034] The magnetic repulsion between the permanent magnet 62 and the magnetic column 73 drives the magnetic column 73 to move in the direction away from the permanent magnet 62 inside the piston cylinder 72 at a relatively slow speed. When the permanent magnet 62 passes the magnetic column 73, causing the permanent magnet 62 and the magnetic column 73 to be in a misaligned state, the magnetic column 73 begins to reset under the elastic force of the spring 1 75. The reset speed of the magnetic column 73 is relatively fast. In this cycle, the reciprocating piston motion of the magnetic column 73 can be changed to a "slow-fast-slow" state, and the rotation state of the flywheel body 831 can also be changed to a "slow-fast-slow" state, and finally the shaking frequency of the test tube 20 can be changed to a "slow-fast-slow" state. Compared with traditional uniform shaking, it can enhance dynamic shear force and strengthen convection, thereby improving the mixing efficiency of the blood sample and the anticoagulant. In addition, compared with uniform shaking, the "slow-fast-slow" shaking state also has a buffering protection effect, which not only improves the mixing efficiency but also reduces the risk of hemolysis.

[0035] In order to solve the technical problem that most traditional shaking devices have a relatively single shaking mode and can only shake multiple test tubes 20 of the same thickness at a time, when encountering test tubes 20 of different thicknesses, the traditional shaking device needs to shake the test tubes 20 of different thicknesses in batches, such as Figure 7-12 As shown, the following preferred technical solutions are provided: like Figure 10-11As shown, the connecting assembly 9 includes a mounting ear 91 fixedly mounted on the side wall of the fixing ring 74, a first push rod 92 is rotatably mounted on the mounting ear 91, an electric push rod 93 is fixedly mounted inside the first push rod 92, a second push rod 94 is fixedly mounted on the output end of the electric push rod 93, the electric push rod 93 is used to adjust the distance between the first push rod 92 and the second push rod 94, and is used to adjust the overall length of the connecting assembly 9, and a pair of limit rods 95 are fixedly mounted on the side wall of the second push rod 94 facing the first push rod 92. The end of the limiting rod 95 away from the second push rod 94 is inserted and slidably installed inside the first push rod 92. The setting of the limiting rod 95 is used to strengthen the overall strength of the connecting component 9, which is conducive to the normal transmission operation. The end of the second push rod 94 away from the electric push rod 93 is rotatably installed with a rotating shaft 96, and a semicircular clamping block 97 is slidably installed inside the rotating shaft 96. A clamping relationship can be formed between the semicircular clamping block 97 and the clamping hole 834, and the semicircular clamping block 97 and the rotating shaft 96 are elastically connected by a spring 98.

[0036] like Figure 9 As shown, the clamping assembly 10 includes a cylinder 101 fixedly mounted on the top surface of the eccentric shaft 833, and a accommodating chamber 102 is provided inside the cylinder 101. A plurality of pairs of slide grooves 103 are symmetrically provided on the side walls of the inner cavity of the accommodating chamber 102, and a slider 104 is slidably installed in the inner cavity of the slide groove 103. The side wall of the slider 104 is elastically connected to the side wall of the inner cavity of the slide groove 103 by a spring three 105, and an arc-shaped splint 106 is fixedly mounted on the outer wall of the slider 104 facing away from the spring three 105. Before starting the shaking device, the test tube 20 is first inserted between the two arc-shaped splints 106. Under the elastic force of the spring three 105, the test tube 20 is clamped by the two arc-shaped splints 106, so that the test tube 20 will not fall off during the shaking process.

[0037] like Figure 12 As shown, the distance measuring component 40 includes a distance sensor 401 fixedly mounted on the inner cavity side wall of the slide 103, and a reference object 402 is fixedly mounted on the outer wall of the slider 104 facing the spring three 105. The distance sensor 401 and the reference object 402 are aligned. When the test tube 20 is inserted between the two arc-shaped clamping plates 106, the arc-shaped clamping plates 106, the slider 104 and the reference object 402 will retract into the inner cavity of the slide 103. At this time, the distance sensor 401 can determine the thickness of the test tube 20 by judging the moving distance of the reference object 402, so as to match the appropriate shaking frequency.

[0038] like Figure 7-Figure 8As shown, the brake assembly 30 includes an electric telescopic column 301 fixedly mounted on the side wall of the positioning frame 82, and the output end of the electric telescopic column 301 is fixedly connected to the brake pad 302. In the process of adjusting the length of the connecting assembly 9, the electric telescopic column 301 is started to extend and the brake pad 302 is pressed against the circumferential side wall of the flywheel body 831, thereby achieving a braking effect on the flywheel body 831, so that the flywheel body 831 will not rotate with it, thereby enabling the operation of adjusting the length of the connecting assembly 9 to proceed smoothly.

[0039] Specifically, before shaking the test tube 20, first insert the test tube 20 between the two arc-shaped clamps 106. Under the elastic force of the spring three 105, the test tube 20 is clamped by the two arc-shaped clamps 106, so that the test tube 20 will not fall off during the shaking process. During this process, the arc-shaped clamp 106, the slider 104 and the reference object 402 will retract into the inner cavity of the slide groove 103. At this time, the distance sensor 401 can determine the thickness of the test tube 20 by judging the moving distance of the reference object 402. The distance sensor 401 transmits the data to the control panel 2. After receiving the data, the control panel 2 analyzes and judges, and then calculates the shaking frequency that matches the test tube 20. At this time, when the frequency of the rotation of the piston assembly 7 driving the shaking assembly 8 through the connecting assembly 9 is the same as the frequency required for the test tube 20 of this thickness, the shaking device can be directly started to shake.

[0040] By controlling the encoder and the phase sequence, the servo motor 5 is in an aligned state each time it stops rotating. At this time, the connecting assembly 9 and the plurality of snap-in holes 834 are in a linearly aligned state. If the frequency at which the piston assembly 7 drives the shaking assembly 8 to rotate through the connecting assembly 9 is different from the frequency required by the thickness test tube 20, the electric telescopic column 301 is started to extend and the brake pad 302 is pressed against the circumferential side wall of the flywheel body 831, thereby achieving a braking effect on the flywheel body 831. 834 is in a linear alignment state. By adjusting the length of the electric push rod 93, the electric push rod 93 drives the semicircular block 97 on the rotating shaft 96 to be clamped into the clamping hole 834 at the appropriate position, which directly changes the overall length of the connecting component 9. Through the above settings, the length of the connecting component 9 can be adjusted through the control panel 2 while keeping the speed of the servo motor 5, the turntable 61 and the permanent magnet 62 unchanged to adjust the rotation frequency of the flywheel body 831, thereby making the rotation frequency of the flywheel body 831 match the frequency required by the coarseness test tube 20.

[0041] Most conventional shaking devices have a relatively single shaking mode, and can only shake multiple test tubes 20 of the same thickness at a time. Since the shaking force and frequency required for test tubes 20 of different thicknesses are inconsistent, when encountering test tubes 20 of different thicknesses, the conventional shaking device needs to shake the test tubes 20 of different thicknesses in batches, which is not only cumbersome to use, but also has low sample processing efficiency. However, before shaking the test tube, the present application can judge the thickness of the test tube 20 by the coordinated setting of the clamping component 10 and the distance measuring component 40, and then adjust the connection component 9 through the control panel 2 The length of the flywheel body 831 is used to adjust the rotation frequency of the flywheel body 831, so that the rotation frequency of the flywheel body 831 can match the frequency required by the test tube 20 of the thickness. Since each group of piston assemblies 7, shaking assemblies 8 and connecting assemblies 9 are independently operated, each group of piston assemblies 7, shaking assemblies 8 and connecting assemblies 9 can be adjusted independently. Therefore, through the setting of the present application, test tubes 20 of different thicknesses can be shaken at the same time, and the appropriate shaking force and frequency can be matched according to the test tubes 20 of different thicknesses. There is no need to process the test tubes 20 of different thicknesses in batches, which greatly improves the sample processing efficiency.

[0042] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0043] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A test tube shaking device for routine blood drawing, comprising a base (1) and a control panel (2) arranged on the base (1), a platform (3) fixedly arranged on the base (1), and a test tube rack (4) fixedly arranged on the platform (3), characterized in that: A servo motor (5) is provided inside the platform (3), and a magnetic drive assembly (6) is fixedly connected to the output shaft of the servo motor (5). A plurality of piston assemblies (7) and shaking assemblies (8) are fixedly provided on the top surface of the base (1), and the plurality of piston assemblies (7) and shaking assemblies (8) are evenly distributed on the circumference of the magnetic drive assembly (6). The piston assembly (7) and the shaking assembly (8) are movably connected via a connecting assembly (9). A clamping assembly (10) is fixedly provided on the shaking assembly (8), and a test tube (20) is clamped inside the clamping assembly (10). A plurality of brake assemblies (30) are fixedly provided on the shaking assembly (8), and a distance measuring assembly (40) is provided inside the clamping assembly (10). The piston assembly (7) includes a bracket (71) fixedly mounted on the top surface of the base (1), a piston cylinder (72) fixedly mounted on the bracket (71), a magnetic column (73) slidably mounted inside the piston cylinder (72), a fixing ring (74) fixedly mounted on one end of the magnetic column (73) close to the shaking assembly (8), and a side wall of the fixing ring (74) and a side wall of the piston cylinder (72) are elastically connected via a spring (75).

2. A test tube shaking device for routine blood drawing according to claim 1, characterized in that: The base (1) includes a base body (11), a mounting groove (12) is provided on the top surface of the base body (11), and the servo motor (5) is fixedly mounted inside the mounting groove (12).

3. A test tube shaking device for routine blood drawing according to claim 2, characterized in that: The platform (3) includes a platform body (31) fixedly mounted on the top surface of the base body (11), a plurality of paving grooves (32) are provided on the top surface of the platform body (31), and the clamping assembly (10) is arranged through the inside of the paving grooves (32).

4. The test tube shaking device for routine blood drawing according to claim 1, characterized in that: The magnetic drive assembly (6) includes a turntable (61) fixedly connected to the output shaft of the servo motor (5), and a plurality of permanent magnets (62) are fixedly installed on the circumferential side wall of the turntable (61). The plurality of permanent magnets (62) are installed in a circumferential array. The number of permanent magnets (62) is consistent with the number of magnetic columns (73), and there is a magnetic repulsion between the permanent magnets (62) and the magnetic columns (73).

5. The test tube shaking device for routine blood drawing according to claim 2, characterized in that: The shaking assembly (8) includes a support rod (81) fixedly mounted on the top surface of the base body (11), a plurality of positioning frames (82) fixedly mounted on the circumferential side wall of the support rod (81), a flywheel (83) is arranged above the support rod (81), an annular groove (84) is provided on the flywheel (83), and a clamping portion on the positioning frame (82) is slidably arranged in the annular groove (84).

6. The test tube shaking device for routine blood drawing according to claim 5, characterized in that: The flywheel (83) includes a flywheel body (831), a pair of counterweights (832) are symmetrically fixedly mounted on the circumferential side walls of the flywheel body (831), an eccentric shaft (833) is fixedly mounted on the top surface of the flywheel body (831), a clamping assembly (10) is fixedly mounted on the top surface of the eccentric shaft (833), a plurality of snap-fit ​​holes (834) are opened on the bottom surface of the flywheel body (831), and the plurality of snap-fit ​​holes (834) are linearly arranged from the edge of the flywheel body (831) toward the center of the flywheel body (831), one end of the connecting assembly (9) forms a snap-fit ​​relationship with the snap-fit ​​hole (834), and the other end of the connecting assembly (9) is connected to the side wall of the fixing ring (74).

7. The test tube shaking device for routine blood drawing according to claim 6, characterized in that: The connecting assembly (9) includes a mounting ear (91) fixedly mounted on the side wall of the fixing ring (74), a first push rod (92) being rotatably mounted on the mounting ear (91), an electric push rod (93) being embedded and fixedly mounted inside the first push rod (92), a second push rod (94) being fixedly mounted on the output end of the electric push rod (93), a pair of limiting rods (95) being fixedly mounted on the side wall of the second push rod (94) facing the first push rod (92), the two limiting rods (95) being slidably mounted inside the first push rod (92) at one end away from the second push rod (94), a rotating shaft (96) being rotatably mounted through one end of the second push rod (94) away from the electric push rod (93), a semicircular clamping block (97) being slidably mounted inside the rotating shaft (96), a clamping relationship being formed between the semicircular clamping block (97) and the clamping hole (834), and an elastic connection being formed between the semicircular clamping block (97) and the rotating shaft (96) via a second spring (98).

8. The test tube shaking device for routine blood drawing according to claim 6, characterized in that: The clamping assembly (10) includes a cylinder (101) fixedly mounted on the top surface of the eccentric shaft (833), an accommodating chamber (102) is provided inside the cylinder (101), a plurality of pairs of slide grooves (103) are symmetrically provided on the side walls of the inner cavity of the accommodating chamber (102), a slider (104) is slidably mounted in the inner cavity of the slide groove (103), the side wall of the slider (104) is elastically connected to the side wall of the inner cavity of the slide groove (103) by a spring three (105), and an arc-shaped clamping plate (106) is fixedly mounted on the outer wall of the slider (104) on the side facing away from the spring three (105).

9. The test tube shaking device for routine blood drawing according to claim 8, characterized in that: The distance measuring assembly (40) includes a distance sensor (401) fixedly mounted on the inner cavity side wall of the slide groove (103), and a reference object (402) fixedly mounted on the outer wall of the slider (104) facing the spring three (105), and the distance sensor (401) and the reference object (402) are aligned.

10. The test tube shaking device for routine blood drawing according to claim 5, characterized in that: The brake assembly (30) comprises an electric telescopic column (301) fixedly mounted on a side wall of the positioning frame (82), and a brake pad (302) is fixedly connected to an output end of the electric telescopic column (301).

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