A test mixing device

Abstract

The utility model relates to medical test instrument technical field discloses a test mixing device, including base, the upper surface rotation of base is connected with first bevel gear, the upper surface fixed connection of base has the motor, the one end fixed connection of motor's output shaft has second bevel gear, the upper surface fixed connection of first bevel gear has rectangular limit post, the inside wall insertion of rectangular limit post has the limit telescopic link, the upper end fixed connection of limit telescopic link has the rotating seat, the inside wall rotation of rotating seat is connected with the rotating ring through bearing, the lower surface fixed connection of rotating ring has the articulated block, the upper surface fixed connection of rotating seat has sample placement pipe, and this test mixing device realizes the rotation and shaking compound motion of sample tube through '' bevel gear drive + eccentric link mechanism'', and the mixing efficiency and uniformity are greatly promoted, and the compatible fixation of different size sample tubes is realized with the help of spring -driven push plate and adjustable top cap.

Description

Technical Field

[0001] This utility model relates to the field of medical testing instrument technology, and more specifically, to a testing mixing device. Background Technology

[0002] A test mixing device is a device used to achieve uniform mixing of samples. In the blood separation process, its core function is to ensure the homogeneity of blood samples or blood and reagents through physical mixing, to break the natural sedimentation trend of various components in the blood sample, or to allow blood and reagents (such as anticoagulants and diluents) to come into full contact, so as to provide an initial sample with uniform component distribution for subsequent centrifugation (such as separation of serum, plasma, and blood cells), and reduce experimental errors caused by sample heterogeneity.

[0003] However, traditional methods of mixing blood samples and reagents have significant drawbacks. Currently, such mixing operations mostly rely on manual shaking of the sample tube. Due to uneven force control and difficulty in precisely controlling the shaking time during manual operation, insufficient mixing often occurs: blood samples may separate into layers, and blood and reagents may not fully contact and react, directly affecting the accuracy and reliability of subsequent test results. At the same time, manual mixing is inefficient and cannot meet the needs of large-scale sample testing, severely restricting the experimental process. Therefore, there is an urgent need for a test mixing device to solve these problems. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides a test mixing device, which aims to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A test mixing device includes a base, a first bevel gear rotatably connected to the upper surface of the base, a motor fixedly connected to the upper surface of the base, a second bevel gear fixedly connected to one end of the output shaft of the motor, a rectangular limiting post fixedly connected to the upper surface of the first bevel gear, a limiting telescopic rod inserted into the inner wall of the rectangular limiting post, a rotating seat fixedly connected to the upper end of the limiting telescopic rod, a rotating ring rotatably connected to the inner wall of the rotating seat via a bearing, a hinge block fixedly connected to the lower surface of the rotating ring, a sample placement tube fixedly connected to the upper surface of the rotating seat, a top cover detachably connected to the upper surface of the sample placement tube, a shell fixedly connected to the outer side of the upper surface of the base, a mounting post fixedly connected to the left side of the upper surface of the shell, and a protective cover fitted onto the outer surface of the mounting post.

[0006] The present invention is further configured such that an eccentric shaft is fixedly connected to the outer surface of the second bevel gear, and a connecting rod is rotatably connected to the outer surface of the eccentric shaft, the upper end of the connecting rod being rotatably connected to the hinge block.

[0007] The present invention is further configured such that the outer surface of the second bevel gear is connected to the outer surface of the first bevel gear in a transmission connection.

[0008] The present invention is further configured such that a spring is fixedly connected to the inner bottom wall of the sample placement tube, a push plate is fixedly connected to the upper end of the spring, the outer surface of the push plate is slidably connected to the inner side wall of the sample placement tube, and a buffer pad is fixedly connected to the inner top wall of the top cover.

[0009] The present invention is further configured such that a limiting post is fixedly connected to the outer surface of the sample placement tube, a limiting groove is formed on the outer surface of the top cover, and one end of the limiting post is engaged with the inner side wall of the limiting groove.

[0010] The present invention is further configured such that a display screen is fixedly connected to the right side of the upper surface of the outer casing, and a control button is fixedly connected to the upper surface of the outer casing in front of the display screen. Compared with the prior art, the present invention provides a test mixing device, which has the following beneficial effects: 1. This experimental mixing device, through the arrangement of a first bevel gear, a motor, a second bevel gear, a rectangular limiting post, a limiting telescopic rod, a rotating seat, an eccentric shaft, and a sample placement tube, facilitates the improvement of solution mixing effect and efficiency. The coordinated arrangement of the first bevel gear, second bevel gear, rectangular limiting post, limiting telescopic rod, and rotating seat drives the sample placement tube to rotate during use. The coordinated arrangement of the second bevel gear, eccentric shaft, connecting rod, hinge block, rotating ring, and bearing drives the rotating seat to rotate during use. The combination of these two components allows the sample to rotate and mix while simultaneously shaking up and down, thereby achieving the goal of improving mixing effect and efficiency.

[0011] 2. This test mixing device, through the arrangement of a sample placement tube, spring, push plate, top cover, limiting groove, and limiting post, enables the test mixing device to adapt to sample tubes of different sizes. Through the coordinated arrangement of the sample placement tube, spring, push plate, top cover, limiting groove, and limiting post, during use, after the sample tube is placed in the sample placement tube, the spring can push the push plate to push the sample tube upward for fixation, thereby achieving the purpose of improving the adaptability of the device. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 A three-dimensional structural diagram of the protective cover of this utility model in the open state; Figure 3 This is a schematic diagram of the internal structure of the outer shell of this utility model; Figure 4 This is a schematic diagram of the three-dimensional cross-section of the rotating seat of this utility model; Figure 5 This is a schematic diagram of the three-dimensional cross-section of the sample placement tube of this utility model.

[0013] In the diagram: 1. Base; 2. First bevel gear; 3. Motor; 4. Second bevel gear; 5. Rectangular limiting post; 6. Limiting telescopic rod; 7. Rotating ring; 8. Bearing; 9. Rotating seat; 10. Hinge block; 11. Connecting rod; 12. Eccentric shaft; 13. Sample placement tube; 14. Spring; 15. Push plate; 16. Top cover; 17. Buffer pad; 18. Limiting groove; 19. Limiting post; 20. Outer shell; 21. Display screen; 22. Control button; 23. Mounting post; 24. Protective cover. Detailed Implementation

[0014] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0015] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0016] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0017] Please see Figures 1-5A test mixing device includes a base 1, a first bevel gear 2 rotatably connected to the upper surface of the base 1, a motor 3 fixedly connected to the upper surface of the base 1, a second bevel gear 4 fixedly connected to one end of the output shaft of the motor 3, the outer surface of the second bevel gear 4 being drively connected to the outer surface of the first bevel gear 2, an eccentric shaft 12 fixedly connected to the outer surface of the second bevel gear 4, a connecting rod 11 rotatably connected to the outer surface of the eccentric shaft 12, the upper end of the connecting rod 11 being rotatably connected to a hinge block 10, a rectangular limiting post 5 fixedly connected to the upper surface of the first bevel gear 2, a limiting telescopic rod 6 inserted into the inner wall of the rectangular limiting post 5, a rotating seat 9 fixedly connected to the upper end of the limiting telescopic rod 6, a rotating ring 7 rotatably connected to the inner wall of the rotating seat 9 via a bearing 8, and the lower surface of the rotating ring 7... A hinge block 10 is fixedly connected to the surface of the rotating seat 9. A sample placement tube 13 is fixedly connected to the upper surface of the rotating seat 9. A spring 14 is fixedly connected to the inner bottom wall of the sample placement tube 13. A push plate 15 is fixedly connected to the upper end of the spring 14. The outer surface of the push plate 15 is slidably connected to the inner side wall of the sample placement tube 13. A buffer pad 17 is fixedly connected to the inner top wall of the top cover 16. The top cover 16 is detachably connected to the upper surface of the sample placement tube 13. A housing 20 is fixedly connected to the outer side of the upper surface of the base 1. A display screen 21 is fixedly connected to the right side of the upper surface of the housing 20. A control button 22 is fixedly connected to the upper surface of the housing 20 in front of the display screen 21. A mounting post 23 is fixedly connected to the left side of the upper surface of the housing 20. A protective cover 24 is sleeved on the outer surface of the mounting post 23.

[0018] Specifically, the output shaft of the motor 3 on the base 1 is connected to the second bevel gear 4, which meshes with the first bevel gear 2 for transmission. The rectangular limiting post 5 on the first bevel gear 2 is inserted into the limiting telescopic rod 6, and its upper end is connected to the sample placement tube 13 through the rotating seat 9. The eccentric shaft 12 on the outer surface of the second bevel gear 4 is connected to the hinge block 10 of the rotating ring 7 through the connecting rod 11. The rotating ring 7 is rotatably connected to the rotating seat 9 through the bearing 8. The display screen 21 and control button 22 on the outer casing 20 are used to adjust the parameters of the motor 3. The motor 3 drives the second bevel gear 4 to rotate, and through meshing with the first bevel gear 2, it drives the rectangular limiting post 5 and the limiting telescopic rod 6 to rotate, so that the rotating seat 9 and the sample placement tube 13 rotate synchronously, realizing the circumferential mixing of the sample. At the same time, when the second bevel gear 4 rotates, the eccentric shaft 12 pulls the hinge block 10 through the connecting rod 11, so that the rotating ring 7 drives the rotating seat 9 to move up and down reciprocally, causing the sample placement tube 13 to rock up and down. The combined motion of rotation and shaking breaks up sample stratification, increasing the contact area between blood and reagents and improving mixing uniformity.

[0019] Please see Figures 1-5A sample placement tube 13 is fixedly connected to the upper surface of the rotating seat 9. A top cover 16 is detachably connected to the upper surface of the sample placement tube 13. A spring 14 is fixedly connected to the inner bottom wall of the sample placement tube 13. A push plate 15 is fixedly connected to the upper end of the spring 14. The outer surface of the push plate 15 is slidably connected to the inner side wall of the sample placement tube 13. A buffer pad 17 is fixedly connected to the inner top wall of the top cover 16. A limiting post 19 is fixedly connected to the outer surface of the sample placement tube 13. A limiting groove 18 is opened on the outer surface of the top cover 16. One end of the limiting post 19 is engaged with the inner side wall of the limiting groove 18.

[0020] Specifically, a spring 14 on the inner bottom wall of the sample placement tube 13 is connected to a push plate 15, which is slidably connected to the inner side wall of the tube. A buffer pad 17 is provided on the inner top wall of the top cover 16 on the upper surface, and a limiting groove 18 on the outer surface engages with a limiting post 19 on the outer surface of the sample placement tube 13. After the sample tube is placed into the sample placement tube 13, the push plate 15 pushes the sample tube upwards under the elastic force of the spring 14. When the top cover 16 closes, the limiting post 19 engages with the limiting groove 18 to a fixed position, and the upper end of the sample tube is pressed tightly by the buffer pad 17. The elastic extension and contraction of the spring 14 can adapt to sample tubes of different specifications, and the flexible contact between the push plate 15 and the buffer pad 17 prevents damage to the sample tube, solving the problem that traditional devices can only adapt to a single specification of sample tube.

[0021] In summary, when using the entire device: place the sample tubes to be mixed into the sample placement tube 13, then cover the sample placement tube 13 with the top cover 16, so that the limiting post 19 hooks into the limiting groove 18. At this time, the lower end of the sample tube will abut against the upper surface of the push plate 15, and the upper end will rise due to the spring 14 and abut against the lower surface of the buffer pad 17, thereby automatically fixing the sample tube. It is suitable for sample tubes of different sizes. Subsequently, when the motor 3 works, it drives the first bevel gear 2 to rotate through the second bevel gear 4, and drives the rotating seat 9 to rotate through the rectangular limiting post 5 and the limiting telescopic rod 6. When wheel 4 rotates, it drives rotating ring 7 to move up and down through hinge block 10, connecting rod 11 and eccentric shaft 12. Rotating ring 7 is rotatably connected to the inside of rotating seat 9 through bearing 8, which also drives rotating seat 9 to move up and down. The combination of the two allows rotating seat 9 to rotate while moving up and down, which greatly improves the mixing effect and efficiency. During operation, the rotation speed of motor 3 can be controlled by control button 22 and display screen 21, thereby adjusting the rotation and shaking frequency. The lower end of protective cover 24 is fitted onto the outer surface of mounting column 23, covering sample placement tube 13 inside it for protection and to improve safety.

[0022] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A test mixing device, comprising a base (1), characterized in that: A first bevel gear (2) is rotatably connected to the upper surface of the base (1), and a motor (3) is fixedly connected to the upper surface of the base (1). A second bevel gear (4) is fixedly connected to one end of the output shaft of the motor (3). A rectangular limiting post (5) is fixedly connected to the upper surface of the first bevel gear (2). A limiting telescopic rod (6) is inserted into the inner wall of the rectangular limiting post (5). A rotating seat (9) is fixedly connected to the upper end of the limiting telescopic rod (6). The inner wall of the rotating seat (9) is connected to a bearing ( 8) A rotating ring (7) is rotatably connected. A hinge block (10) is fixedly connected to the lower surface of the rotating ring (7). A sample placement tube (13) is fixedly connected to the upper surface of the rotating seat (9). A top cover (16) is detachably connected to the upper surface of the sample placement tube (13). A shell (20) is fixedly connected to the outer side of the upper surface of the base (1). A mounting post (23) is fixedly connected to the left side of the upper surface of the shell (20). A protective cover (24) is sleeved on the outer surface of the mounting post (23).

2. The experimental mixing device according to claim 1, characterized in that: An eccentric shaft (12) is fixedly connected to the outer surface of the second bevel gear (4), and a connecting rod (11) is rotatably connected to the outer surface of the eccentric shaft (12). The upper end of the connecting rod (11) is rotatably connected to the hinge block (10).

3. The experimental mixing device according to claim 1, characterized in that: The outer surface of the second bevel gear (4) is connected to the outer surface of the first bevel gear (2) in a transmission connection.

4. The experimental mixing device according to claim 1, characterized in that: A spring (14) is fixedly connected to the inner bottom wall of the sample placement tube (13), and a push plate (15) is fixedly connected to the upper end of the spring (14). The outer surface of the push plate (15) is slidably connected to the inner side wall of the sample placement tube (13), and a buffer pad (17) is fixedly connected to the inner top wall of the top cover (16).

5. The experimental mixing device according to claim 1, characterized in that: The outer surface of the sample placement tube (13) is fixedly connected to a limiting post (19), and the outer surface of the top cover (16) is provided with a limiting groove (18). One end of the limiting post (19) is engaged with the inner side wall of the limiting groove (18).

6. The experimental mixing apparatus according to claim 1, characterized in that: A display screen (21) is fixedly connected to the right side of the upper surface of the housing (20), and a control button (22) is fixedly connected to the upper surface of the housing (20) in front of the display screen (21).

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