A constant temperature mixer

Abstract

The present invention belongs to the field of mixers, and in particular to a constant temperature mixer, which includes a base, a constant temperature module, a cylinder A, a vertical rod A, a ring A, a plug sleeve, a motor, a cylinder B, a ring B, a wave tooth, a cylinder C, a vibration mechanism, a cylinder D, a cylinder E, a spring B, a cylinder F, a cylinder G, a pin, and a cylinder H, wherein a cylinder A driven by a motor is rotatably matched in a circular groove in the middle of the base, and cylinders D and F are nested and rotatably mounted on cylinder B fixed in the circular groove. While the present invention centrifugally mixes a high-viscosity sample containing fragile substances, it can also perform high-frequency horizontal vibration mixing on a low-viscosity sample that does not contain fragile substances through a vibration mechanism in the middle, thereby improving the efficiency of mixing different samples.

Description

Technical Field

[0001] The invention belongs to the field of mixers, and in particular relates to a constant temperature mixer. Background Art

[0002] The constant temperature mixer uses a brushless DC motor and microprocessor technology combined with intelligent PID. It can quickly maintain stability after reaching the target temperature, saving waiting time and perfectly combining the two functions of constant temperature and oscillation, greatly shortening the experimental operation time and improving the efficiency of the staff. It is an ideal automation tool for sample incubation, catalysis, mixing and storage reaction processes. The constant temperature mixer has multi-purpose functions such as heating and oscillation.

[0003] Thermostatic mixers are widely used and can mix a wide variety of samples. Highly viscous samples will splash onto the test tube cover during vibration and are not easy to fall off, affecting the concentration of the sample after full mixing. After mixing, it is not advisable to open the cover immediately, because opening the cover immediately will contaminate the sample adhering to the cover. It needs to be left to stand for a while until the liquid on the cover falls completely into the test tube by gravity before it can be opened, which is inefficient.

[0004] If the vibration level is too high, some samples may contain fragile substances such as red blood cells, which will be destroyed due to excessive vibration during the mixing process. If the vibration level is not high enough, the mixing effect will be poor.

[0005] The present invention designs a constant temperature mixer to solve the above problems. Summary of the invention

[0006] In order to solve the above defects in the prior art, the present invention discloses a constant temperature mixer, which is implemented by adopting the following technical scheme.

[0007] A constant temperature mixer, comprising a base, a constant temperature module, a cylinder A, a vertical rod A, a ring A, a plug sleeve, a motor, a cylinder B, a ring B, a wave tooth, a cylinder C, a vibration mechanism, a cylinder D, a cylinder E, a spring B, a cylinder F, a cylinder G, a pin, and a cylinder H, wherein a cylinder A driven by a motor is rotatably matched in a circular groove in the middle of the base, and cylinders D and F are nested and rotatably arranged on cylinder B fixed in the circular groove; a transmission structure is provided on cylinder D to change the relative rotation speed of cylinder F and cylinder A at all times; cylinder G is axially slidably matched on cylinder F; wave teeth densely distributed circumferentially on the ring B at the top of cylinder B cooperate with the pin on cylinder G; the circumference of the upper end of cylinder A is provided with a transmission structure to change the relative rotation speed of cylinder F and cylinder A at all times; cylinder G is axially slidably matched on cylinder F; wave teeth densely distributed circumferentially on the ring B at the top of cylinder B cooperate with the pin on cylinder G; There are a number of vertical rods A evenly distributed in the direction of the cylinder, and a ring A is hinged between any two adjacent vertical rods A through a horizontal hinge pin perpendicular to the radius of the cylinder A, and a sleeve for inserting a test tube is hinged inside the ring A; a cylinder H is connected to the cylinder G through a connecting rod B, and a number of slots corresponding to the sleeves are evenly opened in the circumferential direction at the lower end of the cylinder H; a cylinder C at the lower end of the cylinder B has a structure for locking the cylinder D; a cylinder E is axially slid on the cylinder D and a spring B for resetting the cylinder E is installed; a structure for synchronously locking the cylinder E and the cylinder A is installed on the cylinder C; a vibration mechanism for placing a number of test tubes and driving the test tubes to vibrate horizontally at high frequency under the drive of a motor is installed in the cylinder B.

[0008] A number of constant temperature modules evenly distributed in the circumferential direction are installed on the side wall of the base.

[0009] As a further improvement of the present technology, a protective cover is hinged on the base.

[0010] As a further improvement of the present technology, three electromagnets cooperating with the cylinder D are radially slidably arranged at the bottom of the cylinder C and a spring A for resetting the electromagnets is installed, and the three electromagnets are evenly distributed circumferentially.

[0011] As a further improvement of the present technology, three electric push rods which are evenly distributed in the circumference and telescopic vertically are installed in the cylinder C; a ring C is installed on the top of the single electric push rod, and a ring D which is rotatably matched with the ring plate C on the cylinder E is rotatably matched with the ring plate C on the cylinder E, and the ring plate C is rotatably matched with the ring plate A on the cylinder A.

[0012] As a further improvement of the present technology, the upper end of the circular ring C is densely covered with teeth in the circumferential direction; the upper and lower ends of the ring plate C are densely covered with teeth in the circumferential direction; the teeth at the lower end of the ring plate C cooperate with the teeth on the circular ring C, and the teeth at the upper end of the ring plate C cooperate with the teeth uniformly and densely distributed in the circumferential direction at the lower end of the ring plate A.

[0013] As a further improvement of the present technology, two gears C and two gears D meshing with the gears C one by one are installed on the outside of the cylinder D; the two gears C are respectively meshed with the ring gear C on the cylinder F and the ring gear A on the ring plate B installed on the vertical rod A; elliptical gears E are installed on the shafts where the two gears D are located; the two gears E mesh with each other.

[0014] As a further improvement of the present technology, a gear A is installed on the output shaft of the motor, and the gear A is meshed with the ring gear B on the cylinder A.

[0015] As a further improvement of the present technology, the vibration mechanism includes a base plate, a vertical rod B, a positioning plate, a jack, a pressure plate, a nut, a drive block, a drive groove, a guide pin, a crank wheel, a rotating shaft, a U seat, and a gear B, wherein four circumferentially evenly distributed vertical rods B are installed on the base plate sliding on the bottom of the cylinder B, two positioning plates are installed on the four vertical rods B, and a number of jacks for placing test tubes with tube plugs are evenly opened on the two positioning plates; a pressure plate for fixing the test tubes is installed on the four vertical rods B through nuts threadedly matched therewith; a vertical rotating shaft is rotatably matched in the U seat at the lower end of the cylinder B, the gear B installed on the rotating shaft is meshed with the gear A, and the crank wheel installed on the rotating shaft has a guide pin that matches the drive groove on the drive block at the lower end of the base plate.

[0016] As a further improvement of the present technology, the spring A is a tension spring.

[0017] As a further improvement of the present technology, the spring B is a tension spring.

[0018] The ring plate B is connected to the vertical rod A through the connecting rod A. The cylinder B is fixed in the circular groove through three fixing rods evenly distributed in the circumference.

[0019] Compared with the traditional mixer, the present invention drives the test tube containing the high-viscosity sample containing fragile substances to be centrifugally mixed by the cooperation between the insert sleeve and the corresponding slot on the cylinder H. During the centrifugation of the high-viscosity sample containing fragile substances, the test tube containing the high-viscosity sample containing fragile substances is moderately shaken by the cooperation between the pin on the cylinder G and the wavy teeth of the ring B on the cylinder B and the continuous relative change in the relative rotation speed of the cylinder D and the cylinder F, so that the high-viscosity sample containing fragile substances in the test tube is mixed without damaging the fragile substances in the sample, and the high-viscosity sample is not easily splashed onto the test tube plug under the centrifugal action, so as to save the time of standing still and waiting for the sample on the tube plug to fall after mixing, thereby improving the mixing efficiency.

[0020] While the present invention centrifugally mixes high-viscosity samples containing fragile substances, it can also perform high-frequency horizontal vibration mixing on low-viscosity samples without fragile substances through the vibration mechanism in the middle, thereby improving the efficiency of mixing different samples. The present invention has a simple structure and good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic cross-sectional view of the overall structure on the base of the present invention.

[0022] Figure 2It is an overall cross-sectional schematic diagram of the present invention.

[0023] Figure 3 It is a cross-sectional schematic diagram of the driving structure of cylinder A and the vibration mechanism.

[0024] Figure 4 It is a schematic cross-sectional view of the cooperation of ring plate A, ring plate C and circular ring D.

[0025] Figure 5 It is a cross-sectional schematic diagram of the transmission cooperation among the ring plate B, cylinder D, cylinder F, cylinder G and the ring B on cylinder B.

[0026] Figure 6 This is a schematic diagram of the connection between cylinder G and cylinder H.

[0027] Figure 7 It is a schematic diagram of the structure on cylinder A and its top view cross-section.

[0028] Figure 8 It is a schematic diagram of the vibration mechanism.

[0029] Fig. 9 These are two cross-sectional schematic diagrams of cylinder B and cylinder C.

[0030] Fig.10 It is a schematic diagram of the two gears E meshing with each other.

[0031] Fig.11 It is a cross-sectional schematic diagram of the present invention in cooperation with a test tube.

[0032] Names of the symbols in the figure: 1. Base; 2. Circular groove; 3. Constant temperature module; 4. Shield; 5. Cylinder A; 6. Ring plate A; 7. Tooth; 8. Vertical rod A; 9. Connecting rod A; 10. Ring plate B; 11. Gear ring A; 12. Ring A; 13. Plug sleeve; 14. Gear ring B; 15. Gear A; 16. Motor; 17. Cylinder B; 18. Ring B; 19. Wave teeth; 20. Cylinder C; 21. Fixed rod; 22. Vibration mechanism; 23. Bottom plate; 24. Vertical rod B; 25. Positioning plate; 26. Socket; 27. Press plate; 28. Nut; 29 , drive block; 30, drive groove; 31, guide pin; 32, crank wheel; 33, shaft; 34, U seat; 35, gear B; 36, cylinder D; 37, electromagnet; 38, spring A; 39, electric push rod; 40, ring C; 41, ring D; 42, cylinder E; 43, ring plate C; 44, spring B; 45, cylinder F; 46, ring gear C; 47, gear C; 48, gear D; 49, gear E; 50, cylinder G; 51, push pin; 52, connecting rod B; 53, cylinder H; 54, slot; 55, test tube; 56, tube plug. DETAILED DESCRIPTION

[0033] The accompanying drawings are schematic diagrams of the present invention, which are provided to facilitate understanding of the operating principle of the structure. The specific product structure and proportional dimensions can be determined according to the use environment combined with conventional technology.

[0034] like Figure 1 , 2 As shown, it includes a base 1, a constant temperature module 3, a cylinder A5, a vertical rod A8, a ring A12, a plug sleeve 13, a motor 16, a cylinder B17, a ring B18, a wave tooth 19, a cylinder C20, a vibration mechanism 22, a cylinder D36, a cylinder E42, a spring B44, a cylinder F45, a cylinder G50, a pin 51, and a cylinder H53, wherein as Figure 2 , 3 As shown, a cylinder A5 driven by a motor 16 rotates in the circular groove 2 in the middle of the base 1, and cylinders D36 and F45 are nested and rotated on the cylinder B17 fixed in the circular groove 2; Figure 2 , 5 As shown in FIG. 10 , the cylinder D36 has a transmission structure that allows the relative rotation speed of the cylinder F45 and the cylinder A5 to change at all times; Figure 2 , 5 As shown in 9, the cylinder F45 is axially slidably matched with the cylinder G50; the wavy teeth 19 densely distributed circumferentially on the top ring B18 of the cylinder B17 cooperate with the pin 51 on the cylinder G50; Figure 2 , 7 As shown in FIG. 11 , a plurality of vertical rods A8 are evenly distributed in the circumferential direction on the upper end of the cylinder A5, and a ring A12 is hingedly connected between any two adjacent vertical rods A8 through a horizontal hinge pin perpendicular to the radius of the cylinder A5, and a sleeve 13 for inserting a test tube 55 is hingedly connected inside the ring A12; Figure 2 , 6 As shown in FIG. 11, cylinder G50 is connected to cylinder H53 via connecting rod B52, and a plurality of slots 54 are evenly arranged at the lower end of cylinder H53 in the circumferential direction, which are matched with the plug sleeve 13 in a one-to-one manner; cylinder C20 at the lower end of cylinder B17 has a structure for locking cylinder D36; cylinder E42 is axially slid on cylinder D36 and a spring B44 is installed to reset cylinder E42; Figure 2 , 4 As shown, the cylinder C20 has a structure for synchronously locking the cylinder E42 and the cylinder A5; Figure 2 , 3 As shown in FIG. 11 , a vibration mechanism 22 is installed in the cylinder B17 for placing a plurality of test tubes 55 and driving the test tubes 55 to vibrate horizontally at high frequency under the drive of the motor 16.

[0035] like Figure 1 As shown, a number of constant temperature modules 3 evenly distributed in the circumferential direction are installed on the side wall of the base 1 .

[0036] like Figure 1As shown, a protective cover 4 is hinged on the base 1.

[0037] like Figure 2 As shown, three electromagnets 37 cooperating with the cylinder D36 are radially slidably arranged at the bottom of the cylinder C20 and a spring A38 is installed to reset the electromagnets 37. The three electromagnets 37 are evenly distributed in the circumferential direction.

[0038] like Figure 2 , 4 As shown, three electric push rods 39 that are evenly distributed circumferentially and telescopic vertically are installed in the cylinder C20; a ring C40 is installed on the top of a single electric push rod 39, and a ring D41 is rotatably engaged with the ring plate C43 on the cylinder E42, and the ring plate C43 is frictionally engaged with the ring plate A6 on the cylinder A5.

[0039] like Figure 4 As shown, the upper end of the circular ring C40 is densely distributed with teeth 7 in the circumferential direction; the upper and lower ends of the ring plate C43 are densely distributed with teeth 7 in the circumferential direction; the teeth 7 at the lower end of the ring plate C43 cooperate with the teeth 7 on the circular ring C40, and the teeth 7 at the upper end of the ring plate C43 cooperate with the teeth 7 uniformly distributed in the circumferential direction at the lower end of the ring plate A6.

[0040] like Figure 5 , 10 As shown, two gears C47 and two gears D48 meshing with the gears C47 in a one-to-one correspondence are installed on the outer side of the cylinder D36; the two gears C47 are respectively meshed with the ring gear C46 on the cylinder F45 and the ring gear A11 installed on the ring plate B10 of the vertical rod A8; an elliptical gear E49 is installed on the shaft where the two gears D48 are located; the two gears E49 mesh with each other.

[0041] like Figure 3 As shown, a gear A15 is mounted on the output shaft of the motor 16, and the gear A15 is meshed with a ring gear B14 on the cylinder A5.

[0042] like Figure 2 , 3 As shown in FIG. 8 , the vibration mechanism 22 includes a bottom plate 23, a vertical rod B24, a positioning plate 25, a jack 26, a pressure plate 27, a nut 28, a drive block 29, a drive slot 30, a guide pin 31, a crank wheel 32, a rotating shaft 33, a U seat 34, and a gear B35. Figure 2 , 3As shown in 11, four circumferentially evenly distributed vertical rods B24 are installed on the bottom plate 23 sliding on the bottom of the cylinder B17, and two positioning plates 25 are installed on the four vertical rods B24. A number of jacks 26 for placing test tubes 55 with tube plugs 56 are evenly opened on the two positioning plates 25; a pressing plate 27 for fixing the test tubes 55 is installed on the four vertical rods B24 through a nut 28 threadedly matched therewith; a vertical shaft 33 is rotatably matched in the U-seat 34 at the lower end of the cylinder B17, and the gear B35 installed on the shaft 33 is meshed with the gear A15, and a crank wheel 32 installed on the shaft 33 has a guide pin 31 that cooperates with the driving groove 30 on the driving block 29 at the lower end of the bottom plate 23.

[0043] like Figure 2 As shown, the spring A38 is a tension spring.

[0044] like Figure 2 As shown, the spring B44 is a tension spring.

[0045] The ring plate B10 is connected to the vertical rod A8 via the connecting rod A9. The cylinder B17 is fixed in the circular groove 2 via three fixing rods 21 evenly distributed in the circumferential direction.

[0046] The working process of the present invention is as follows: in the initial state, the electromagnet 37 is not energized, the ring D41 is not engaged with the ring plate C43, the ring plate C43 is not engaged with the ring plate A6, the spring A38 and the spring B44 are both in a stretched state, the pin 51 is disengaged from the ring B18, and the cylinder G50 is located at its lowest limit position under the action of its own weight.

[0047] When the present invention is needed to mix a solution that does not contain easily destructible substances, the three electric push rods 39 are started to extend, and the electric push rods 39 drive the ring D41 to engage with the ring plate C43 through the ring C40 and drive the ring plate C43 to engage with the ring plate A6, and the spring B44 is further stretched.

[0048] A test tube 55 containing a solution containing no fragile substances is placed in the vibration mechanism 22, and the pressure plate 27 is pressed against the tube plug 56 of the test tube 55 through the cooperation of the nut 28 and the vertical rod B24, so that the test tube 55 in the vibration mechanism 22 is effectively positioned and the solution in the test tube 55 in the vibration mechanism 22 is prevented from splashing outwards during the vibration process.

[0049] Then, a test tube 55 containing a solution is inserted into each insertion sleeve 13 and a tube plug 56 is placed on the test tube 55 .

[0050] Next, the motor 16 is started, and the motor 16 drives the cylinder A5 to rotate rapidly through the gear A15 and the gear ring B14. The cylinder A5 drives all the test tubes 55 and the ring plate B10 in the sleeve 13 to rotate synchronously through the vertical rod A8, and makes the test tubes 55 in the sleeve 13 perform centrifugal motion. At the same time, the cylinder A5 drives the cylinder D36 to rotate synchronously through the ring plate A6, the ring plate C43, and the cylinder E42. Because the ring plate B10 and the cylinder D36 rotate synchronously at the same speed, the gear C47 meshing with the gear ring A11 on the ring plate B10 does not rotate. The ring plate B10 and the cylinder D36 drive the cylinder F45 and the cylinder G50 to rotate synchronously with the cylinder D36 at the same speed through the gear C47, the gear D48, and the two mutually meshing elliptical gears E49.

[0051] At the same time, the bottom of the test tube 55 in the sleeve 13 swings outward and upward under the action of centrifugation, and the sleeve 13 enters the corresponding slot 54 on the cylinder H53. The cylinder H53 moves upward under the action of the sleeve 13, and the cylinder H53 drives the cylinder G50 to move upward synchronously through the connecting rod B52. The pin 51 on the cylinder G50 interacts with the wavy teeth 19 on the ring B18, so that the cylinder G50 drives the cylinder H53 to reciprocate up and down through the connecting rod B52. The sleeve 13 located in the slot 54 swings up and down at a high frequency driven by the cylinder H53, so that the solution in the test tube 55 in the sleeve 13 is effectively mixed. At the same time, since the test tube 55 in the sleeve 13 swings up and down driven by the cylinder H53 and performs high-speed centrifugal motion, the solution in the test tube 55 will not splash onto the tube plug 56 of the test tube 55, avoiding waiting for a long time after the solution in the test tube 55 is mixed so that the solution adhered to the tube plug 56 falls off, thereby improving the mixing efficiency of the solution in the test tube 55.

[0052] At the same time, the motor 16 drives the vibration mechanism 22 to vibrate back and forth at high frequency in the horizontal direction through the gear A15, gear B35, shaft 33, crank wheel 32, pin 51 and driving block 29, so that the solution in the test tube 55 in the vibration mechanism 22 is effectively mixed.

[0053] When it is necessary to mix the solution containing fragile substances such as red blood cells and the solution containing indestructible substances at the same time, the test tube 55 containing the solution containing the indestructible substances is placed in the vibration mechanism 22 and fixed, and then the test tube 55 containing the solution containing the fragile substances is placed in the insertion sleeve 13 and the tube plug 56 is installed.

[0054] Next, the three electromagnets 37 are energized, and the three electromagnets 37 are instantly attracted to the cylinder D36 and slide, and the spring A38 is further stretched, thereby completing the locking of the cylinder D36.

[0055] Then, the motor 16 is started to drive the cylinder A5 to rotate rapidly. The cylinder A5 drives all the test tubes 55 and the ring plate B10 in the sleeves 13 to rotate synchronously through the vertical rod A8. The bottom of the test tube 55 in the sleeve 13 swings outward and upward under the centrifugal action to perform centrifugal motion and quickly enters the corresponding slot 54 on the cylinder H53. Under the action of the centrifugal sleeve 13, the cylinder H53 drives the pin 51 on the cylinder G50 to interact with the wavy teeth 19 on the ring B18 through the connecting rod B52, so that the cylinder H53 drives the test tube 55 to swing back and forth up and down through the sleeve 13. The ring plate B10 rotates rapidly relative to the cylinder D36. The ring plate B10 drives the corresponding gear C47 to rotate through the ring gear A11. The gear C47 drives the cylinder F45 to rotate relative to the cylinder D36 through two gears D48, two gears E49, another gear C47, and the ring gear C46. The cylinder F45 drives the cylinder G50, which is axially slidably matched with it, to rotate synchronously. The cylinder G50 drives the cylinder H53 to rotate synchronously through the connecting rod B52.

[0056] During the rotation of cylinder F45 relative to cylinder D36, since the two meshing gears E49 are both elliptical gears, the rotation speed of cylinder F45 relative to cylinder D36 will change all the time. The rotation speed of cylinder F45 relative to cylinder A5 is sometimes fast and sometimes slow, resulting in the rotation speed of cylinder H53 relative to sleeve 13 being sometimes fast and sometimes slow, so that cylinder G50 drives test tube 55 to shake around the hinge of sleeve 13 through sleeve 13, thereby making the fragile substances in the solution in test tube 55 tumble in test tube 55 without colliding with each other, thereby avoiding the fragile substances in the solution from being destroyed due to mutual collision, and finally completing the non-destructive mixing of the solution containing the fragile substances.

[0057] At the same time, the vibration mechanism 22 is driven by the motor 16 to vibrate and mix the solution containing no fragile substances installed therein, thereby improving the mixing efficiency.

[0058] In summary, the beneficial effects of the present invention are as follows: the present invention drives the test tube 55 containing the high-viscosity sample containing the fragile substance to be centrifugally mixed by the cooperation between the insert sleeve 13 and the corresponding slot 54 on the cylinder H53. During the centrifugation of the high-viscosity sample containing the fragile substance, the test tube 55 containing the high-viscosity sample containing the fragile substance is moderately shaken by the cooperation between the pin 51 on the cylinder G50 and the wavy teeth 19 of the ring B18 on the cylinder B17 and the continuous relative change in the relative rotation speed of the cylinder D36 and the cylinder F45, so that the high-viscosity sample containing the fragile substance in the test tube 55 is mixed without destroying the fragile substance in the sample, and the high-viscosity sample is not easily splashed onto the tube plug 56 of the test tube 55 under the action of centrifugation, so as to save the time of standing still and waiting for the sample on the tube plug 56 to fall after mixing, thereby improving the mixing efficiency.

[0059] While the present invention is centrifugally mixing high-viscosity samples containing fragile substances, it is also possible to perform high-frequency horizontal vibration mixing on low-viscosity samples without fragile substances through the vibration mechanism 22 in the middle, thereby improving the efficiency of mixing different samples.

Claims

1. A constant temperature mixer, characterized in that: It includes a base, a constant temperature module, a cylinder A, a vertical rod A, a ring A, a plug sleeve, a motor, a cylinder B, a ring B, a wave tooth, a cylinder C, a vibration mechanism, a cylinder D, a cylinder E, a spring B, a cylinder F, a cylinder G, a pin, and a cylinder H. A cylinder A driven by a motor is rotatably matched in a circular groove in the middle of the base, and cylinders D and F are nested and rotatably arranged on cylinder B fixed in the circular groove; a transmission structure is provided on cylinder D so that the relative rotation speed of cylinder F and cylinder A changes at all times; cylinder G is axially slidably matched on cylinder F; the wave teeth densely distributed circumferentially on the ring B at the top of cylinder B cooperate with the pin on cylinder G; the upper end of cylinder A is evenly distributed circumferentially There are several vertical rods A, and a ring A is hinged between any two adjacent vertical rods A through a horizontal hinge pin perpendicular to the radius of the cylinder A, and a socket for inserting a test tube is hinged inside the ring A; the cylinder G is connected to the cylinder H through a connecting rod B, and the lower end of the cylinder H is evenly provided with several slots corresponding to the sockets in a circumferential direction; the cylinder C at the lower end of the cylinder B has a structure for locking the cylinder D; the cylinder E is axially slid on the cylinder D and a spring B is installed to reset the cylinder E; the cylinder C has a structure for synchronously locking the cylinder E and the cylinder A; a vibration mechanism for placing several test tubes and driving the test tubes to vibrate horizontally at high frequency under the drive of a motor is installed inside the cylinder B; A number of constant temperature modules evenly distributed in the circumferential direction are installed on the side wall of the base; The bottom of the cylinder C is provided with three electromagnets that cooperate with the cylinder D and are radially slidable. A spring A for resetting the electromagnets is installed thereon. The three electromagnets are evenly distributed in the circumferential direction. Three electric push rods evenly distributed in the circumference and retractable vertically are installed in the cylinder C; a ring C is installed on the top of a single electric push rod, and a ring D is rotatably matched with the ring plate C on the cylinder E, and the ring plate C is frictionally matched with the ring plate A on the cylinder A; Two gears C and two gears D meshing with the gears C are installed on the outside of the cylinder D; the two gears C mesh with the ring gear C on the cylinder F and the ring gear A installed on the ring plate B of the vertical rod A respectively; an elliptical gear E is installed on the shaft where the two gears D are located; the two gears E mesh with each other; The output shaft of the motor is provided with a gear A, which meshes with a gear ring B on the cylinder A; In the initial state, the electromagnet is not energized, the ring D is not engaged with the ring plate C, the ring plate C is not engaged with the ring plate A, the spring A and the spring B are both in a stretched state, the pin is separated from the ring B, and the cylinder G is at its lowest limit position under the action of its own weight; When the constant temperature mixer is needed to mix the solution without easily destructible substances, the three electric push rods are started to extend, and the electric push rods drive the ring D to bite with the ring plate C and drive the ring plate C to bite with the ring plate A through the ring C, and the spring B is further stretched; Then, a test tube containing a solution is inserted into each insert sleeve and a tube stopper is placed on the test tube; Next, the motor is started, and the motor drives the cylinder A to rotate rapidly through the gear A and the gear ring B. The cylinder A drives all the test tubes in the sleeve and the ring plate B to rotate synchronously through the vertical rod A and makes the test tubes in the sleeve perform centrifugal motion. At the same time, the cylinder A drives the cylinder D to rotate synchronously through the ring plate A, the ring plate C, and the cylinder E. Since the ring plate B and the cylinder D rotate synchronously and at the same speed, the gear C meshing with the gear ring A on the ring plate B does not rotate on its own. The ring plate B and the cylinder D drive the cylinder F and the cylinder G to rotate synchronously and at the same speed with the cylinder D through the gear C, the gear D, and the two mutually meshing elliptical gears E. At the same time, the bottom of the test tube in the sleeve swings outward and upward under the action of centrifugation, and the sleeve enters the corresponding slot on the cylinder H. The cylinder H moves upward under the action of the sleeve, and the cylinder H drives the cylinder G to move upward synchronously through the connecting rod B. The pin on the cylinder G interacts with the wavy teeth on the ring B, so that the cylinder G drives the cylinder H to reciprocate up and down through the connecting rod B. The sleeve located in the slot swings up and down at a high frequency driven by the cylinder H, so that the solution in the test tube in the sleeve is effectively mixed; at the same time, the test tube in the sleeve performs high-speed centrifugal movement while swinging up and down driven by the cylinder H, so the solution in the test tube will not splash onto the tube plug of the test tube, so as to avoid waiting for a long time after the solution in the test tube is mixed, so that the solution adhered to the tube plug falls, thereby improving the mixing efficiency of the test tube solution; When it is necessary to mix the solution containing the fragile substance and the solution containing the indestructible substance at the same time, the test tube containing the solution containing the indestructible substance is placed in the vibration mechanism and fixed, and then the test tube containing the solution containing the fragile substance is placed in the insertion sleeve and the tube plug is installed; Next, the three electromagnets are energized, and they instantly adsorb and slide onto cylinder D, and spring A is further stretched, thereby locking cylinder D. Then, the motor is started to drive the cylinder A to rotate rapidly. The cylinder A drives all the test tubes in the sleeves and the ring plate B to rotate synchronously through the vertical rod A. The bottom of the test tube in the sleeve swings outward and upward under the action of centrifugation to perform centrifugal movement and quickly enters the corresponding slot on the cylinder H. Under the action of the centrifugal sleeve, the cylinder H drives the pin on the cylinder G to interact with the wavy teeth on the ring B through the connecting rod B, so that the cylinder H drives the test tube to swing up and down through the sleeve; the ring plate B rotates rapidly relative to the cylinder D, and the ring plate B drives the corresponding gear C to rotate through the gear ring A. The gear C drives the cylinder F to rotate relative to the cylinder D through two gears D, two gears E, another gear C, and the gear ring C. The cylinder F drives the cylinder G axially slidingly matched with it to rotate synchronously, and the cylinder G drives the cylinder H to rotate synchronously through the connecting rod B; During the rotation of cylinder F relative to cylinder D, since the two meshing gears E are both elliptical gears, the rotation speed of cylinder F relative to cylinder D will change all the time, and the rotation speed of cylinder F relative to cylinder A will be sometimes fast and sometimes slow, resulting in the rotation speed of cylinder H relative to the sleeve being sometimes fast and sometimes slow, so that cylinder G drives the test tube to shake around the hinge of the sleeve through the sleeve, thereby causing the fragile substances in the solution in the test tube to roll in the test tube without colliding with each other, thereby avoiding the destruction of the fragile substances in the solution due to mutual collision, and finally completing the non-destructive mixing of the solution containing the fragile substances.

2. A constant temperature mixer according to claim 1, characterized in that: A protective cover is hinged on the base.

3. A constant temperature mixer according to claim 1, characterized in that: The upper end of the circular ring C is densely covered with teeth in the circumferential direction; the upper and lower ends of the ring plate C are densely covered with teeth in the circumferential direction; the teeth at the lower end of the ring plate C cooperate with the teeth on the circular ring C, and the teeth at the upper end of the ring plate C cooperate with the teeth uniformly and densely distributed in the circumferential direction at the lower end of the ring plate A.

4. A constant temperature mixer according to claim 1, characterized in that: The spring A is a tension spring.

5. A constant temperature mixer according to claim 1, characterized in that: The spring B is a tension spring.

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