A medical analytical instrument mixing device

Abstract

The utility model belongs to mixed technical field, concretely relates to a kind of medical analysis instrument mixing device, including stirring bin, the inner side of stirring bin and the position of top end near are threadedly connected with top plate, rotationally connected with rotating rod in top plate, the bottom of rotating rod and the bottom of top plate are slidably connected with stirring rod, the outside of stirring rod is evenly provided with multiple stirring plate, the outside of stirring rod is fixed with sliding frame, the bottom of top plate is rotatably connected with rotating frame, and rotating frame is slidably connected in the outside of sliding frame, the top of top plate is equipped with the first drive structure for driving stirring rod rotation, the bottom of top plate is equipped with the second drive structure for driving stirring rod up and down movement, the first drive structure includes the protective cover fixed in the top of top plate, the outside of rotating rod and the winding of protective cover inside are provided with pull rope.The utility model can improve solution mixing uniformity, simultaneously, structure need not complex spiral design, simplify processing and cleaning difficulty, avoid residual pollution.

Description

Technical Field

[0001] This utility model belongs to the field of hybrid technology, specifically relating to a hybrid device for medical analysis instruments. Background Technology

[0002] In the field of medical analysis, the mixing effect of medical analysis solutions directly affects the accuracy and reliability of test results. Currently, there are various devices on the market for mixing medical analysis solutions, each with its own mixing method and structure, but they also generally have some significant limitations.

[0003] Some existing medical analytical instruments use a relatively simple stirring method in their mixing devices, which only allows the stirring rod to rotate simply, like a traditional stirrer. The stirring rod simply rotates around its own axis. In this case, the flow pattern of the solution in the container is relatively fixed, and it only forms a certain vortex around the stirring rod, resulting in uneven mixing. For some medical analytical experiments that require extremely high mixing uniformity, the mixing effect produced by this simple rotation stirring method is far from meeting the requirements, which may affect the final test results.

[0004] In addition, some mixing devices have innovated in the structural design of the stirring rod, such as using a helical rod structure to enhance the stirring effect. However, while this structure improves the mixing ability to a certain extent, it brings new problems. The helical rod structure is relatively complex, and its manufacturing process is more difficult, requiring higher process precision and cost investment. Furthermore, during the cleaning process, the helical surface is more likely to retain cleaning fluid than a flat surface. In medical analysis scenarios, residual cleaning fluid after cleaning may contaminate subsequent solution mixing, interfering with analytical results, and significantly reducing the effectiveness of this type of mixing device in practical applications.

[0005] Therefore, existing mixing devices in medical analytical instruments have significant shortcomings in terms of mixing methods and functions, making it difficult to meet the requirements of simple structure, easy cleaning, and efficient operation while ensuring mixing effect. Utility Model Content

[0006] The purpose of this invention is to provide a mixing device for medical analysis instruments that can improve the uniformity of solution mixing. At the same time, the structure does not require a complex spiral design, which simplifies the processing and cleaning process and avoids residual contamination.

[0007] The specific technical solution adopted by this utility model is as follows:

[0008] A mixing device for a medical analysis instrument includes a mixing chamber, a top plate threadedly connected to the inner side of the mixing chamber near the top, a rotating rod rotatably connected inside the top plate, a mixing rod slidably connected to the bottom of the rotating rod and located at the bottom of the top plate, a plurality of mixing plates evenly arranged on the outer side of the mixing rod, a sliding frame fixed to the outer side of the mixing rod, a rotating frame rotatably connected to the bottom of the top plate, and the rotating frame slidably connected to the outer side of the sliding frame.

[0009] The top of the top plate is equipped with a first drive structure for driving the stirring rod to rotate, and the bottom of the top plate is equipped with a second drive structure for driving the stirring rod to move up and down.

[0010] The first driving structure includes a protective cover fixed to the top of the top plate, a pull rope wound around the outside of the rotating rod and inside the protective cover, a pull block fixed to one end of the pull rope away from the rotating rod and extending out of the outside of the protective cover, the pull block being fitted to the protective cover, and a first reset structure for driving the rotating rod to rotate in the opposite direction is installed on the top plate.

[0011] The first reset structure includes a spring assembled between the rotating rod and the top plate, with both ends of the spring connected to the rotating rod and the top plate, respectively.

[0012] The second driving structure includes a wave-shaped abutment ring fixed to the top of the sliding frame and located outside the stirring rod. At least one abutment block is fixed to the bottom of the top plate and above the wave-shaped abutment ring. The abutment block abuts against the wave-shaped abutment ring. A second reset structure for driving the stirring rod and the sliding frame to move upward is installed between the top plate and the sliding frame.

[0013] The second reset structure includes a spring fixed to the top of the sliding frame, and a rotating ring is fixed to the top of the spring, the rotating ring being rotatably connected to the top plate.

[0014] The inner side of the rotating frame is provided with a slider, and the outer side of the sliding frame is provided with a groove that slides relative to the slider.

[0015] The bottom of the stirring plate is provided with an inclined surface.

[0016] The technical effects achieved by this utility model are as follows:

[0017] This invention utilizes a composite motion mode in which the stirring rod rotates while moving up and down to create a three-dimensional mixing flow field, significantly improving the uniformity of solution mixing. It is especially suitable for medical analysis solutions with stratification or large viscosity differences. At the same time, the structure does not require a complex spiral design, simplifying processing and cleaning and avoiding residual contamination. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the mixing chamber and the protective cover in this utility model;

[0020] Figure 3 This is a schematic diagram of the structure between the stirring rod, the pull rope, and the spring in this utility model;

[0021] Figure 4 This utility model Figure 2 Enlarged view of point A in the middle;

[0022] Figure 5 This utility model Figure 3 Enlarged view of point B in the middle.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Mixing chamber; 2. Top plate; 3. Rotating rod; 4. Pull rope; 5. Spring; 6. Sliding frame; 7. Rotating frame; 8. Protective cover; 9. Mixing rod; 10. Pull block; 11. Slide groove; 12. Sliding block; 13. Abutment block; 14. Wave abutment ring; 15. Spring; 16. Rotating ring; 17. Mixing plate; 18. Inclined surface. Detailed Implementation

[0025] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0026] like Figures 1-5As shown, a mixing device for a medical analytical instrument includes a mixing chamber 1. A top plate 2 is threadedly connected to the inner side of the mixing chamber 1 near its top. A food-grade silicone sealing ring is provided at the threaded connection between the top plate 2 and the mixing chamber 1 to ensure sealing performance while facilitating disassembly and cleaning. Through the threaded connection between the top plate 2 and the mixing chamber 1, the top plate 2 can be detached from the mixing chamber 1, and reagents can be poured into the mixing chamber 1. A rotating rod 3 is rotatably connected inside the top plate 2. A stirring rod 9 is slidably connected to the bottom of the rotating rod 3 and located at the bottom of the top plate 2. At least one rectangular retaining strip is provided at the top of the stirring rod 9, and a matching rectangular retaining groove is provided on the inner wall of the bottom of the rotating rod 3. This structure allows the stirring rod 9 to slide along the axial direction of the rotating rod 3, while transmitting torque through the side cooperation of the retaining strip and the retaining groove. Multiple stirring plates 17 are evenly arranged on the outer side of the stirring rod 9. The stirring rod 9 drives the stirring plate 17 to rotate, thereby mixing the reagents and ensuring the mixing effect. The bottom of the stirring plate 17 is provided with an inclined surface 18, so that the reagent solution can drip into the stirring chamber 1 through the inclined surface 18 on the stirring plate 17, reducing liquid residue on the stirring rod 9 and the stirring plate 17. A sliding frame 6 is fixed to the outside of the stirring rod 9, and a rotating frame 7 is rotatably connected to the bottom of the top plate 2. The rotating frame 7 is slidably connected to the outside of the sliding frame 6. Furthermore, a slider 12 is provided on the inside of the rotating frame 7, and a groove 11 is provided on the outside of the sliding frame 6 to slide relative to the slider 12. With this arrangement, the rotating frame 7 rotates along with the sliding frame 6 through the slider 12 and the groove 11. With the slider 12 and the groove 11, the sliding frame 6 can only slide between itself and the rotating frame 7, and cannot rotate.

[0027] The top of the top plate 2 is equipped with a first drive structure for driving the stirring rod 9 to rotate.

[0028] See attached document Figures 2-3 The first driving structure includes a protective cover 8 fixed to the top of the top plate 2, a pull rope 4 wrapped around the outside of the rotating rod 3 and inside the protective cover 8, a pull block 10 fixed to the end of the pull rope 4 away from the rotating rod 3 and extending out of the outside of the protective cover 8, the surface of the pull block 10 is provided with anti-slip texture, the pull block 10 is fitted with the protective cover 8, and a first reset structure for driving the rotating rod 3 to rotate in the opposite direction is installed on the top plate 2.

[0029] When the stirring rod 9 and the stirring plate 17 are rotated, the pull block 10 can be pulled, which in turn causes the pull rope 4 to drive the rotating rod 3 to rotate. The stirring rod 9 and the rotating rod 3 are connected by a sliding connection rather than a rotating connection, so that the rotating rod 3 drives the stirring rod 9 and the stirring plate 17 to rotate. The stirring rod 9 is driven to rotate in the opposite direction to reset through the first reset structure, so that the reciprocating rotation of the stirring rod 9 stirs and mixes the reagent solution.

[0030] See attached document Figure 3The first reset structure includes a spring 5 assembled between the rotating rod 3 and the top plate 2, with both ends of the spring 5 connected to the rotating rod 3 and the top plate 2 respectively;

[0031] When the pull rope 4 pulls the rotating rod 3 to rotate, it can drive the spring 5 to twist, thereby gradually tightening the spring 5. When the tension of the rotating rod 3 disappears, the spring 5 returns to its original position through elasticity, thereby causing the spring 5 to drive the rotating rod 3 to rotate in the opposite direction and rewind the pull rope 4. Through this setting, the rotating rod 3 can rotate reciprocally.

[0032] The bottom of the top plate 2 is equipped with a second drive structure for driving the stirring rod 9 to move up and down;

[0033] See attached document Figures 4-5 The second driving structure includes a wavy abutment ring 14 fixed to the top of the sliding frame 6 and located outside the stirring rod 9. At least one abutment block 13 is fixed at the bottom of the top plate 2 and above the wavy abutment ring 14. The abutment block 13 abuts against the wavy abutment ring 14. When the rotating rod 3 and the stirring rod 9 rotate, the sliding frame 6 and the rotating frame 7 can be driven to rotate accordingly. The rotation of the sliding frame 6 drives the wavy abutment ring 14 to rotate accordingly. Through the mutual abutment between the abutment block 13 and the wavy abutment ring 14, the wavy abutment ring 14 is subjected to the abutment force of the abutment block 13 when it rotates, thereby causing the wavy abutment ring 14 to drive the sliding frame 6 to slide downward along the rotating frame 7. A second reset structure for driving the stirring rod 9 and the sliding frame 6 to move upward is installed between the top plate 2 and the sliding frame 6. The second reset structure drives the sliding frame 6 and the stirring rod 9 to move upward and reset. Thus, the stirring rod 9 and the stirring plate 17 rotate and move up and down, which can improve the mixing effect of the solution.

[0034] See attached document Figure 4 The second reset structure includes a spring 15 fixed to the top of the sliding frame 6, and a rotating ring 16 fixed to the top of the spring 15. The rotating ring 16 is rotatably connected to the top plate 2. When the abutting block 13 abuts against the wavy abutting ring 14 and moves down, the spring 15 is stretched accordingly. When the wavy abutting ring 14 rotates to the groove part and abuts against the abutting block 13, the elastic effect of the spring 15 drives the wavy abutting ring 14 and the sliding frame 6 to move up and reset. The rotating ring 16 can prevent the spring 15 from twisting. Repeating the above actions, the stirring rod 9, the sliding frame 6 and the stirring plate 17 can reciprocate and rotate and move up and down.

[0035] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A medical analysis instrument mixing device comprising a stirring bin (1), characterized in that: A top plate (2) is threadedly connected to the inner side of the mixing chamber (1) and near the top. A rotating rod (3) is rotatably connected inside the top plate (2). A stirring rod (9) is slidably connected to the bottom of the rotating rod (3) and the bottom of the top plate (2). Multiple stirring plates (17) are evenly arranged on the outer side of the stirring rod (9). A sliding frame (6) is fixed on the outer side of the stirring rod (9). A rotating frame (7) is rotatably connected to the bottom of the top plate (2), and the rotating frame (7) is slidably connected to the outer side of the sliding frame (6). The top of the top plate (2) is equipped with a first driving structure for driving the stirring rod (9) to rotate, and the bottom of the top plate (2) is equipped with a second driving structure for driving the stirring rod (9) to move up and down.

2. A medical analytical instrument mixing device according to claim 1, wherein: The first driving structure includes a protective cover (8) fixed to the top of the top plate (2), a pull rope (4) is wound around the outside of the rotating rod (3) and inside the protective cover (8), a pull block (10) is fixed at one end of the pull rope (4) away from the rotating rod (3) and extending out of the outside of the protective cover (8), the pull block (10) is fitted with the protective cover (8), and a first reset structure for driving the rotating rod (3) to rotate in the opposite direction is installed on the top plate (2).

3. A medical analytical instrument mixing device according to claim 2, wherein: The first reset structure includes a spring (5) assembled between the rotating rod (3) and the top plate (2), with both ends of the spring (5) connected to the rotating rod (3) and the top plate (2) respectively.

4. The medical analytical instrument mixing device of claim 1, wherein: The second driving structure includes a wave-shaped abutment ring (14) fixed on the top of the sliding frame (6) and located outside the stirring rod (9). At least one abutment block (13) is fixed at the bottom of the top plate (2) and above the wave-shaped abutment ring (14). The abutment block (13) abuts against the wave-shaped abutment ring (14). A second reset structure for driving the stirring rod (9) and the sliding frame (6) to move upward is installed between the top plate (2) and the sliding frame (6).

5. A medical analytical instrument mixing device according to claim 4, wherein: The second reset structure includes a spring (15) fixed to the top of the sliding frame (6), and a rotating ring (16) is fixed to the top of the spring (15), the rotating ring (16) being rotatably connected to the top plate (2).

6. The medical analytical instrument mixing device of claim 1, wherein: The inner side of the rotating frame (7) is provided with a slider (12), and the outer side of the sliding frame (6) is provided with a groove (11) that slides against the slider (12).

7. The medical analytical instrument mixing device of claim 1, wherein: The bottom of the stirring plate (17) is provided with an inclined surface (18).

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