A mixing device for medical test samples

By designing a multi-mode mixing device and a fluid balance system, the problems of single mixing method and poor stability were solved, achieving flexible and stable sample mixing and improving the accuracy and consistency of detection results.

CN120644101BActive Publication Date: 2025-10-21TIANJIN MEDICAL UNIV GENERAL HOSPITAL BINHAI HOSPITAL
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Patent Information

Application Number
CN202511150001.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-08-18
Publication Date
2025-10-21
Estimated Expiration
2045-08-18

AI Technical Summary

Technical Problem

Existing mixing devices have a single mixing method and cannot meet diverse needs. They are complex to operate, have poor stability, have dead corners for mixing at the bottom and top, and are incompatible with test tubes of different specifications, affecting the mixing effect and the accuracy of the test results.

Method used

A mixing device comprising a mixing chamber, a base, a drive mechanism, a transmission system, and a carrier is designed. It provides centrifugal mixing mode and homogeneous mixing mode, employs a fluid balance system to counteract vibration, and uses a double-cone groove spring structure to stabilize the test tube. The transmission system enables mode switching to ensure mixing uniformity.

Benefits of technology

It enables flexible selection of the optimal mixing method, improves mixing effect and stability, ensures the stability of test tubes of different sizes, simplifies operation, and improves the accuracy and consistency of test results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application belongs to the technical field of sample inspection, and specifically relates to a mixing device for medical inspection samples, which comprises a mixing cabin, a device base, a driving mechanism, a transmission system and a carrier. The application combines centrifugal mixing and three-dimensional mixing through an innovative dual-mode mixing mechanism, and simultaneously cooperates with a real-time dynamic fluid balance technology to solve key pain points such as uneven mixing, poor adaptability and large vibration during high-speed operation of traditional mixing equipment. Self-adaptive test tube fixing and mechanical mode switching further improve the convenience and reliability of operation, and finally ensure to provide an efficient, stable, uniform and safe mixing solution for various medical inspection samples.
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Description

Technical Field

[0001] The invention belongs to the technical field of sample testing, and in particular relates to a mixing device for medical test samples. Background Art

[0002] In the field of medical testing, accurate test results are crucial for correct diagnosis and treatment. Medical test samples include various biological samples, such as blood, urine, saliva, and tissue. When conducting molecular biology, clinical testing, and other medical tests, ensuring uniform sample mixing is a fundamental step in obtaining reliable results. To prevent sample inactivation and coagulation, or to promote dilution and separation, samples must be mixed with reagents before testing. For some samples, multiple samples must be mixed before testing.

[0003] There are still some technical aspects of existing mixing devices that need urgent improvement: first, the mixing method is relatively simple and cannot meet diverse mixing needs, which is especially obvious when dealing with samples of different properties; second, when testing a single sample, counterweight balancing is often required, which undoubtedly increases the complexity of the operation and reduces work efficiency; third, the device vibrates greatly when rotating at high speed, resulting in poor stability and easily affecting the uniformity of the mixing effect; in addition, traditional mixing methods often have dead corners at the bottom and top, resulting in incomplete mixing of samples, affecting the accuracy of experimental results; more critically, the existing device lacks compatibility in fixing test tubes of different specifications, which limits its scope of application. These problems have seriously affected the performance and user experience of the mixing device, and there is an urgent need for technological innovation and improvement to achieve more efficient and stable mixing operations. Summary of the Invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a mixing device for medical test samples to solve the technical problems raised in the background art.

[0005] The technical solution adopted by the present invention is as follows: The present invention provides a mixing device for medical test samples, including a mixing chamber, an equipment base, a driving mechanism, a transmission system and a carrier. The mixing chamber is arranged above the equipment base, the driving mechanism is installed in the equipment base, the transmission system is movably connected to the driving mechanism, and the carrier is installed on the transmission system. The mixing chamber provides a closed and safe working space, accommodating the transmission system, the carrier and the test tube to prevent sample splashing or contamination; the equipment base serves as the supporting foundation of the device, fixes and accommodates the driving mechanism, and provides a stable platform; the driving mechanism provides the core power required for the operation of the mixing device; the transmission system transmits and converts the power and motion form (rotation) of the driving mechanism to drive the carrier and the test tube on it to perform a specific mixing motion (centrifugal or homogenization mode); the carrier directly clamps and fixes the test tube to be mixed.

[0006] Furthermore, the driving mechanism includes a driving motor, an output gear, a driving gear, a driving spindle, a connecting platform, a fluid balancing system and a locking wheel, the driving motor is arranged in the device base, the output gear is arranged at the output end of the driving motor, the connecting platform is arranged at the top of the device base, the driving spindle is rotatably connected to the connecting platform, the driving gear is arranged at the bottom of the driving spindle, the fluid balancing system is fixed to the driving spindle, and the locking wheel is arranged at the top of the driving spindle.

[0007] In which, the fluid balancing system includes a connecting disk, a balancing ring, an extrusion channel, an extrusion plug, an extrusion connecting rod, a return spring and an extrusion push plate. The connecting disk is fixedly connected to the driving main shaft, the balancing ring is arranged at the bottom of the connecting disk, the extrusion channel is communicated with the inner wall of the balancing ring, the extrusion plug is slidably arranged in the extrusion channel, one end of the extrusion connecting rod is fixedly connected to the extrusion plug, the extrusion push plate is arranged at the other end of the extrusion connecting rod, one end of the return spring is fixedly connected to the extrusion channel, and the other end of the return spring is fixedly connected to the extrusion push plate.

[0008] As a further preferred embodiment of the present invention, the balance ring and the extrusion channel are jointly filled with deionized water, which serves as the working medium of the fluid balance system. Its fluidity is used to achieve dynamic mass redistribution and generate a balancing torque to offset vibration. Deionized water is selected to avoid corrosion and conductivity problems. When filling the balance ring and the extrusion channel, the total amount of deionized water must be less than 80%, and the mass distribution of the fluid is changed by squeezing the air in the remaining space.

[0009] Furthermore, the transmission system includes a transmission base, a main drive wheel, a mixing output shaft, a mixing gear, a synchronous slider, a mixing sleeve shaft, a fixed wheel, a fixed shaft and a mounting groove. The transmission base is slidably connected to the connecting disk, used to carry the transmission components and can move radially to achieve mode switching. The main drive wheel is provided on the transmission base, used to engage with the fixed gear ring in the homogeneous mode to drive the planetary motion. The main drive wheel is rotatably provided with symmetrical side balance wheels for the planetary gear to achieve the conversion between revolution and rotation. The mixing output shaft is rotatably connected to the transmission base and is used as the driving shaft for the test tube rotation in the homogeneous mode. The mixing gear is fixed to the mixing output shaft and is used to receive the power of the side balance wheel to drive the mixing output shaft. The synchronous slider is slidably provided on the transmission base, used to connect the fluid balance system, transmit eccentric force and drive the mixing sleeve shaft to move radially, and the mixing sleeve shaft is rotatably provided with a synchronous slider The cam is connected to the gear train of the gear selector and the control gear of the gear selector, and the cam is connected to the gear train of the gear selector, and the control gear of the gear selector is connected to the gear train of the gear selector, and the control gear of the gear selector is connected to the gear train of the gear selector.

[0010] Furthermore, the synchronous slider is connected to the extrusion push plate.

[0011] As a further preferred embodiment of the present invention, symmetrical clamping shafts are provided on both sides of the transmission base for rotation, and a ring-arranged clamping groove is provided on the top of the connecting disk. The clamping groove cooperates with the clamping shaft at the bottom of the transmission system to perform mechanical positioning and locking between the centrifugal mixing mode and the homogeneous mixing mode to achieve mode switching.

[0012] Furthermore, symmetrical locking teeth are rotatably provided on both sides of the installation slot, and spring plates are slidably provided on both sides of the installation slot, and a mounting spring is connected to the bottom of the spring plate.

[0013] Furthermore, the carrier includes a carrying cabin and a sealing cap, the carrying cabin is installed in the installation groove through side rods on both sides, the sealing cap is spirally connected to the carrying cabin, a lower conical groove is provided for sliding in the carrying cabin, a lower spring is provided between the bottom of the lower conical groove and the bottom of the carrying cabin, an upper conical groove is provided for sliding in the sealing cap, an upper spring is provided between the top of the upper conical groove and the top of the sealing cap, through the adaptive pressure of the lower spring and the upper spring, combined with the conical surfaces of the lower conical groove and the upper conical groove, a stable and universal clamping of test tubes of different diameters and lengths is achieved, ensuring that the test tubes do not loosen or fall off under high-speed or complex movements.

[0014] Furthermore, a sealed cabin door is rotatably connected to the mixing cabin, a magnetic plate is provided at the bottom of the sealed cabin door, a fixed connecting rod is connected to the top of the mixing cabin, and a fixed gear ring is connected to the lower end of the fixed connecting rod. When the transmission system is fixed on the outside, the fixed gear ring is meshed with the main drive wheel.

[0015] The beneficial effects of the medical test sample mixing device provided by this solution are as follows:

[0016] (1) It provides two mixing mechanisms: centrifugal mixing mode (high-speed rotation to generate vortex) and homogeneous mixing mode (combination of three-dimensional revolution and rotation). Users can flexibly select the best mixing method according to sample characteristics or reagent reaction requirements, significantly improving the applicability and targeted mixing effect for different test items;

[0017] (2) The unique fluid balance mode can sense and automatically offset the vibration caused by the rotating centrifugal force in real time through the balance ring, extrusion channel and movable liquid counterweight. When the transmission system is eccentric due to load, the liquid inside the system is dynamically redistributed to generate a reverse balancing torque, effectively suppressing equipment shaking and noise, and ensuring a smooth and safe high-speed mixing process.

[0018] (3) The carrier adopts a double-cone groove spring structure. Through the spring's adaptive pressure, it can firmly clamp standard test tubes of different diameters and lengths, ensuring that there is no risk of loosening or falling off under high-speed rotation or complex movement. It is easy to operate and has strong versatility.

[0019] (4) Through the purely mechanical linkage design of the sliding transmission base, rotating card shaft and multi-level card slot, the two hybrid modes can be switched quickly and reliably. The operation is intuitive and does not require complex circuit control, which reduces the failure rate and improves the durability and user-friendliness of the equipment.

[0020] (5) In the homogeneous mode, the test tube simultaneously revolves around the vertical axis and rotates around the horizontal axis. This composite three-dimensional motion produces a complex fluid dynamics effect (coordinated centrifugal force and gravity disturbance), which completely breaks the sample stratification in the test tube, avoids weak mixing areas at the bottom or top, and achieves deep, rapid, and uniform mixing of samples and reagents, greatly improving the consistency and accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a mixing device for medical test samples proposed by the present invention;

[0022] Figure 2 This is a diagram showing the relationship between the transmission system and the mounted position;

[0023] Figure 3 This is a structural diagram of the mixing cabin;

[0024] Figure 4 Schematic diagram of the structure of the driving mechanism;

[0025] Figure 5 It is a partial structural diagram of the fluid balance system;

[0026] Figure 6 is a cross-sectional view of the balancing ring;

[0027] Figure 7 It is a structural diagram of the transmission system;

[0028] Figure 8 is a top view of the transmission system;

[0029] Figure 9 It is the connection relationship diagram of the hybrid output shaft and the hybrid sleeve shaft;

[0030] Figure 10 Schematic diagram of the structure of the installation slot;

[0031] Figure 11 It is a schematic diagram of part of the structure of the carrier;

[0032] Figure 12 is a cross-sectional view of the carrier;

[0033] Figure 13 This is a diagram of the connection between the synchronous slider and the extrusion push plate.

[0034] Among them, 1. Mixing chamber, 2. Equipment base, 3. Driving mechanism, 4. Transmission system, 5. Carrier, 6. Test tube, 101. Sealed hatch, 102. Magnetic plate, 103. Fixed connecting rod, 104. Fixed gear ring, 301. Driving motor, 302. Output gear, 303. Driving gear, 304. Driving spindle, 305. Connecting platform, 306. Fluid balance system, 307. Locking wheel, 308. Connecting disk, 309. Balancing ring, 310. Extrusion channel, 311. Extrusion plug, 312. Extrusion connecting rod, 313. Reset spring Spring, 314, extrusion push plate, 315, card slot, 401, transmission base, 402, main drive wheel, 403, side balance wheel, 404, mixed output shaft, 405, mixed gear, 406, synchronous slider, 407, mixed sleeve shaft, 408, fixed wheel, 409, fixed shaft, 410, mounting slot, 411, lock tooth, 412, spring plate, 413, mounting spring, 414, card shaft, 501, carrying cabin, 502, sealing cap, 503, lower conical groove, 504, lower spring, 505, upper spring, 506, upper conical groove, 507, side rod.

[0035] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0038] like Figures 1-13As shown, the present invention provides a mixing device for medical test samples, including a mixing cabin 1, an equipment base 2, a driving mechanism 3, a transmission system 4 and a carrier 5. The mixing cabin 1 is arranged above the equipment base 2, the driving mechanism 3 is installed in the equipment base 2, the transmission system 4 is movably connected to the driving mechanism 3, and the carrier 5 is installed on the transmission system 4; a sealed cabin door 101 is rotatably connected to the mixing cabin 1, a magnetic attraction plate 102 is provided at the bottom of the sealed cabin door 101, a fixed connecting rod 103 is connected to the top of the mixing cabin 1, and a fixed gear ring 104 is connected to the lower end of the fixed connecting rod 103.

[0039] The driving mechanism 3 includes a driving motor 301, an output gear 302, a driving gear 303, a driving spindle 304, a connecting platform 305, a fluid balancing system 306 and a locking wheel 307. The driving motor 301 is arranged in the device base 2, the output gear 302 is arranged at the output end of the driving motor 301, the connecting platform 305 is arranged at the top of the device base 2, the driving spindle 304 is rotatably connected to the connecting platform 305, the driving gear 303 is arranged at the bottom of the driving spindle 304, the fluid balancing system 306 is fixed to the driving spindle 304, and the locking wheel 307 is arranged at the top of the driving spindle 304; the fluid balancing system 306 includes a connecting disk 308, a balancing ring 309, extrusion channel 310, extrusion plug 311, extrusion connecting rod 312, return spring 313 and extrusion push plate 314, the connecting disk 308 is fixedly connected to the driving main shaft 304, the balance ring 309 is arranged at the bottom of the connecting disk 308, the extrusion channel 310 is communicated with the inner wall of the balance ring 309, the extrusion plug 311 is slidably arranged in the extrusion channel 310, one end of the extrusion connecting rod 312 is fixedly connected to the extrusion plug 311, the extrusion push plate 314 is arranged at the other end of the extrusion connecting rod 312, one end of the return spring 313 is fixedly connected to the extrusion channel 310, and the other end of the return spring 313 is fixedly connected to the extrusion push plate 314; the top of the connecting disk 308 is provided with a ring-shaped card groove 315.

[0040] The transmission system 4 includes a transmission base 401, a main drive wheel 402, a hybrid output shaft 404, a hybrid gear 405, a synchronous slider 406, a hybrid sleeve shaft 407, a fixed wheel 408, a fixed shaft 409 and a mounting slot 410. The transmission base 401 is slidably connected to the connecting plate 308, the main drive wheel 402 is provided on the transmission base 401, and a symmetrical side balance wheel 403 is rotatably provided on the main drive wheel 402. The hybrid output shaft 404 is rotatably connected to the transmission base 401, the hybrid gear 405 is fixed to the hybrid output shaft 404, the synchronous slider 406 is slidably provided on the transmission base 401, the hybrid sleeve shaft 407 is rotatably provided on the synchronous slider 406, and one end of the hybrid sleeve shaft 407 is rotatably connected to the hybrid output shaft 404. The output shaft 404 is splined and slidingly connected, the fixed shaft 409 is rotatably connected to the main drive wheel 402, the fixed wheel 408 is provided at one end of the fixed shaft 409, and the other end of the fixed shaft 409 is slidably connected to the locking wheel 307, the mounting groove 410 is rotatably connected to the other end of the mixing sleeve shaft 407, the mixing gear 405 is meshed with the side balance wheel 403, and the fixed wheel 408 is meshed with the side balance wheel 403; the synchronous slider 406 is connected to the extrusion push plate 314; symmetrical card shafts 414 are rotatably provided on both sides of the transmission base 401; symmetrical lock teeth 411 are rotatably provided on both sides of the mounting groove 410, and spring plates 412 are slidably provided on both sides of the mounting groove 410, and the bottom of the spring plate 412 is connected to a mounting spring 413.

[0041] The carrier 5 includes a carrying cabin 501 and a sealing cap 502. The carrying cabin 501 is installed in the installation groove 410 through side rods 507 on both sides. The sealing cap 502 is spirally connected to the carrying cabin 501. A lower conical groove 503 is provided for sliding in the carrying cabin 501. A lower spring 504 is provided between the bottom of the lower conical groove 503 and the bottom of the carrying cabin 501. An upper conical groove 506 is provided for sliding in the sealing cap 502. An upper spring 505 is provided between the top of the upper conical groove 506 and the top of the sealing cap 502.

[0042] When in use, first install the test tube 6 on the carrier 5, open the sealing cap 502, push the test tube 6 into the carrier cabin 501, and the bottom end of the test tube 6 squeezes the lower spring 504 through the lower conical groove 503, then close the sealing cap 502, and the lower spring 504 resets to push the test tube 6, and the top of the test tube 6 is in close contact with the upper conical groove 506; then install the carrier 5 on the transmission system 4, press the spring plate 412, and the installation spring 413 is squeezed and shortened by the spring plate 412, and then push the lock tooth 411 to push the side rod 507 of the carrier cabin 501 into the installation groove 410, and adjust the position of the transmission system 4 according to the mixing mode adopted. When the centrifugal mixing mode is adopted, rotate the card shaft 414 to allow the transmission base 401 and The connecting disk 308 is unlocked, the transmission base 401 is slid inward (close to the axis direction of the driving main shaft 304), and the card shaft 414 is rotated again to engage the card shaft 414 with the inner card groove 315. At this time, the main driving wheel 402 is separated from the fixed gear ring 104. When the homogeneous mixing mode is adopted, the card shaft 414 is rotated to separate the transmission base 401 from the connecting disk 308, and the transmission base 401 is slid outward (away from the axis direction of the driving main shaft 304). The card shaft 414 is rotated again to engage the card shaft 414 with the outer card groove 315. At this time, the main driving wheel 402 is meshed with the fixed gear ring 104; start mixing, start the drive motor 301, and the drive motor 301 drives the output gear 302 rotates, the output gear 302 rotates to drive the driving gear 303 to rotate, the driving gear 303 rotates to drive the driving main shaft 304 to rotate, and the driving main shaft 304 rotates to drive the fluid balance system 306 and the transmission system 4 to rotate synchronously; due to the centrifugal force generated by the rotation of the carrier 5, the carrier 5 will pull the mounting groove 410, the synchronous slider 406 and the mixing sleeve shaft 407 outward, and when the synchronous slider 406 slides outward, it will drive the extrusion push plate 314 to slide outward together, and the extrusion push plate 314 slides through the extrusion connecting rod 312 to drive the extrusion plug 311 to slide, and the extrusion push plate 314 squeezes the return spring 313 to shorten, and the extrusion plug 311 will squeeze the water in the extrusion channel 310 into the flat During rotation within the chamber of the balancing ring 309, the water volume corresponding to one side of the transmission system 4 is less than the average water volume within the balancing ring 309 and the remaining extrusion channels 310. That is, the center of gravity of the entire water volume within the balancing ring 309 and the extrusion channels 310 is shifted toward the other side of the transmission system 4. The mass eccentricity generated by the redistribution of the liquid in the fluid balancing system 306 is used to generate a balancing torque in the opposite direction of the centrifugal disturbance of the transmission system 4, thereby reducing overall shaking during rotation and improving mixing stability. When using the centrifugal mixing mode, the test tube 6 rotates horizontally with the carrier 5 around the drive spindle 304, using centrifugal force to generate a vortex in the sample, causing the substances to rotate around the center of the vortex and mix together.When the homogeneous mixing mode is adopted, since the main driving wheel 402 is meshed and connected with the fixed gear ring 104, when the transmission system 4 rotates around the main driving shaft 304, the side balancing wheel 403 rotates together with the main driving wheel 402 around the horizontal axis (the axis of the mixing output shaft 404). At this time, the fixed shaft 409 and the fixed wheel 408 are fixed. Since the fixed wheel 408 is meshed and connected with the side balancing wheel 403, the side balancing wheel 403 rotates around its own axis. The rotation of the side balancing wheel 403 drives the mixing gear 405 to rotate, and the rotation of the mixing gear 405 drives the mixing output shaft 404 to rotate. The rotation of the mixing output shaft 404 drives the mixing sleeve 407 to rotate, which in turn drives the mounting slot 410, the carrier 5, and the test tube 6 synchronously. At this point, the sample in the test tube 6 rotates simultaneously about the vertical axis (the axis of the drive spindle 304) and the horizontal axis (the axis of the mixing output shaft 404 and the mixing sleeve 407). This dual-axis, three-dimensional rotation synergistically utilizes centrifugal force and gravitational perturbations to thoroughly optimize the mixing process at the physical, spatial, and dynamic levels, preventing the formation of weak mixing zones at the bottom and top of the test tube 6, reducing sedimentation or aggregation, and achieving uniform sample mixing.

[0043] The above is the specific working process of the present invention. Just repeat this step next time you use it.

[0044] It should be noted that, in this document, relational terms such as first and second, etc. are merely used 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.

[0045] Furthermore, 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 comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0046] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

[0047] The present invention and its embodiments are described above. Such description is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto.

[0048] In summary, if ordinary technicians in this field are inspired by this and design structural methods and embodiments similar to this technical solution without creatively designing them without departing from the purpose of the invention, they should all fall within the scope of protection of the invention.

Claims

1. A mixing device for medical test samples, characterized in that: The invention comprises a mixing chamber (1), an equipment base (2), a driving mechanism (3), a transmission system (4) and a carrier (5), wherein the mixing chamber (1) is arranged above the equipment base (2), the driving mechanism (3) is installed in the equipment base (2), the transmission system (4) is movably connected to the driving mechanism (3), and the carrier (5) is installed on the transmission system (4); the driving mechanism (3) comprises a fluid balancing system (306), a connecting platform (305) and a driving main shaft (304), and the connecting platform (305) is arranged on the equipment base. The top of the seat (2), the driving spindle (304) is rotatably connected to the connecting platform (305), and the fluid balance system (306) is fixed to the driving spindle (304); the fluid balance system (306) includes a connecting disk (308), a balance ring (309) and an extrusion channel (310), the connecting disk (308) is fixed to the driving spindle (304), the balance ring (309) is arranged at the bottom of the connecting disk (308), the extrusion channel (310) is communicated with the inner wall of the balance ring (309), and the balance ring (309) and the extrusion channel (310) are filled with deionized water; the driving mechanism (3) further comprises a driving motor (301), an output gear (302), a driving gear (303) and a locking wheel (307), wherein the driving motor (301) is arranged in the device base (2), the output gear (302) is arranged at the output end of the driving motor (301), the driving gear (303) is arranged at the bottom of the driving main shaft (304), and the locking wheel (307) is arranged at the top of the driving main shaft (304); the fluid level The balance system (306) further includes an extrusion plug (311), an extrusion connecting rod (312), a return spring (313) and an extrusion push plate (314), wherein the extrusion plug (311) is slidably arranged in the extrusion channel (310), one end of the extrusion connecting rod (312) is fixedly connected to the extrusion plug (311), the extrusion push plate (314) is arranged at the other end of the extrusion connecting rod (312), one end of the return spring (313) is fixedly connected to the extrusion channel (310), and the other end of the return spring (313) is fixedly connected to the extrusion push plate (314).

2. A medical test sample mixing device according to claim 1, characterized in that: The transmission system (4) comprises a transmission base (401), a main drive wheel (402), a hybrid output shaft (404), a hybrid gear (405), a synchronous slider (406), a hybrid sleeve shaft (407), a fixed wheel (408), a fixed shaft (409) and a mounting groove (410); the transmission base (401) is slidably connected to the connecting disk (308); the main drive wheel (402) is provided on the transmission base (401); a symmetrical side balance wheel (403) is rotatably provided on the main drive wheel (402); the hybrid output shaft (404) is rotatably connected to the transmission base (401); the hybrid gear (405) is fixed to the hybrid output shaft (404); the synchronous slider (406) is slidingly arranged on the transmission base (401), the mixing sleeve shaft (407) is rotationally arranged on the synchronous slider (406), one end of the mixing sleeve shaft (407) is spline-slidingly connected to the mixing output shaft (404), the fixed shaft (409) is rotationally connected to the main driving wheel (402), the fixed wheel (408) is arranged on one end of the fixed shaft (409), the other end of the fixed shaft (409) is slidingly connected to the locking wheel (307), the mounting groove (410) is fixedly rotationally connected to the other end of the mixing sleeve shaft (407), the mixing gear (405) is meshedly connected to the side balance wheel (403), and the fixed wheel (408) is meshedly connected to the side balance wheel (403).

3. The medical test sample mixing device according to claim 2, characterized in that: The carrier (5) includes a carrying cabin (501) and a sealing cap (502), wherein the carrying cabin (501) is installed in the installation groove (410) through side rods (507) on both sides, and the sealing cap (502) is spirally connected to the carrying cabin (501), and a lower conical groove (503) is provided in the carrying cabin (501) for sliding, and a lower spring (504) is provided between the bottom of the lower conical groove (503) and the bottom of the carrying cabin (501), and an upper conical groove (506) is provided in the sealing cap (502) for sliding, and an upper spring (505) is provided between the top of the upper conical groove (506) and the top of the sealing cap (502).

4. The medical test sample mixing device according to claim 3, characterized in that: The mixing cabin (1) is rotatably connected to a sealed cabin door (101), a magnetic plate (102) is provided at the bottom of the sealed cabin door (101), a fixed connecting rod (103) is connected to the top of the mixing cabin (1), and a fixed gear ring (104) is connected to the lower end of the fixed connecting rod (103).

5. The medical test sample mixing device according to claim 4, characterized in that: The top of the connecting disk (308) is provided with an annularly arranged locking groove (315).

6. The medical test sample mixing device according to claim 5, characterized in that: The synchronous slider (406) is connected to the extrusion push plate (314).

7. The medical test sample mixing device according to claim 6, characterized in that: Symmetrical clamping shafts (414) are rotatably provided on both sides of the transmission base (401).

8. The medical test sample mixing device according to claim 7, characterized in that: Symmetrical locking teeth (411) are rotatably provided on both sides of the installation slot (410), and spring plates (412) are slidably provided on both sides of the installation slot (410), with a mounting spring (413) connected to the bottom of the spring plate (412).

Citation Information

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