Separating device for microbiological inspection

Abstract

The utility model discloses a separating device for microbiological examination and relates to a separating device for microbiological examination, which comprises a detection cylinder, a support plate is rotatably arranged on the inner side of the detection cylinder, a driving part is mounted at the bottom of the inner side of the detection cylinder and used for driving the support plate to rotate, and an adjusting component is arranged on the support plate. The adjusting assembly comprises a plurality of test tube main bodies movably connected to the supporting plate, adjusting frames symmetrically arranged on the circumference of the supporting plate, and positioning columns relatively sliding on the adjusting frames, and when substances with different densities are separated, the angles of the test tubes can be flexibly adjusted according to the characteristics of the substances and experiment requirements, for example, for substances with small density differences, the test tubes can be conveniently and rapidly adjusted. By accurately adjusting the angle of the test tube, the acting direction and acting point of centrifugal force on substances can be changed, so that the substances with different densities are separated more efficiently, and the separation purity and precision are improved.

Description

Technical Field

[0001] This utility model relates to the field of microbial testing technology, and in particular to a separation device for microbial testing. Background Technology

[0002] Microbiological testing is a technical means of detecting, identifying, and analyzing microorganisms in various samples, aiming to understand the types, quantities, characteristics, and potential impacts of microorganisms. It is widely used in food, pharmaceuticals, the environment, and clinical settings. In the food industry, microbiological testing can determine whether food is contaminated by bacteria, molds, etc., ensuring food safety; pharmaceutical testing can ensure the sterility of drugs or that microbial limits meet standards; in environmental testing, it can assess the degree of microbial contamination in water bodies and soil; clinically, it can help doctors diagnose infectious diseases, identify pathogens, and guide rational drug use.

[0003] Existing microbial testing isolation devices include a variety of equipment, such as incubators for the cultivation, propagation, and preservation of microorganisms; centrifuges that use centrifugal force to separate microorganisms from the solution to purify the sample; homogenizers used to uniformly mix microbial samples to ensure sample homogeneity for subsequent analysis and processing; and filtration devices such as bacterial filters that retain bacteria through sterile filter membranes to obtain sterile filtrate, which can be used for sterility testing, sterile filtration of culture media, etc.

[0004] In existing centrifuge designs, the position of the test tube compartment is often fixed, which limits its application flexibility. Because the angle of the test tube compartment is not easily adjustable, the centrifuge cannot easily perform centrifugation operations at various angles. However, different experimental needs may require centrifugation at different angles to achieve optimal separation results. For example, some experiments may require centrifugation at specific angles, such as vertical or inclined, to more effectively separate substances of different densities. Existing fixed test tube compartment designs do not easily meet these diverse needs, increasing the complexity and cost of experiments. To address these issues, a separation device for microbial testing is proposed. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as fixed test tube chambers and limited experimental applications, by proposing a separation device for microbial testing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A separation device for microbial testing includes a detection tube, a support plate rotatably disposed on the inner side of the detection tube, a driving component installed at the bottom inner side of the detection tube for driving the support plate to rotate, and an adjustment assembly disposed on the support plate. The adjustment assembly includes: a plurality of test tube bodies movably connected to the support plate, an adjustment frame symmetrically disposed on the support plate, and positioning columns sliding relative to each other on the adjustment frame. The adjustment assembly is used to adjust the angle of the test tube bodies.

[0008] The above technical solution further includes:

[0009] The adjustment assembly further includes: a plurality of adjustment slots are provided through the support plate, a rotating rod is rotatably connected to the inner side of the adjustment slot, a rotating block is fixedly connected to the rotating rod, and a test tube chamber is fixedly connected to the top of the rotating block.

[0010] The adjustment assembly further includes: the test tube body is slidably disposed inside the test tube chamber, a test tube plug is slidably disposed at the port of the test tube body, and an adjustment arm is symmetrically fixedly connected to the outside of the test tube chamber, with the adjustment arm and the adjustment frame sliding relative to each other.

[0011] The adjustment assembly further includes: multiple sets of adjustment frames, with two adjustment frames in each set, symmetrically distributed on both sides of the test tube body, with an arc-shaped sliding groove on the side of the two adjustment frames closest to the test tube body, and multiple positioning holes through the two adjustment frames.

[0012] The adjustment component further includes: a plurality of positioning holes arranged in a circumferential array on the adjustment frame, wherein the spacing between any two positioning holes is the same.

[0013] The adjustment assembly further includes: a positioning groove is provided at one end of the adjustment arm near the adjustment frame, a spring is installed inside the positioning groove, a limit block is fixedly connected to the end of the spring, a positioning post is fixedly connected to one end of the limit block near the positioning hole, the limit block and the positioning groove slide relative to each other, and a positioning bolt is threadedly connected between the positioning post and the positioning hole.

[0014] The top of the detection cylinder is movably connected to a cover plate. A concave head is installed at the output end of the drive component. An installation cylinder is installed on the outside of the concave head. A convex head is provided at the end of the concave head. The convex head support plates are fixedly connected to each other, and both the concave head and the convex head are located inside the installation cylinder.

[0015] A spherical ball is fixedly connected to the bottom of the cover plate, and a support column is fixedly connected to the side of the support plate near the cover plate. The spherical ball and the support column rotate relative to each other.

[0016] This utility model has the following beneficial effects:

[0017] 1. In this invention, when separating substances of different densities, the test tube angle can be flexibly adjusted according to the properties of the substances and experimental requirements. For example, for substances with small density differences, by precisely adjusting the test tube angle, the direction and point of action of the centrifugal force on the substances can be changed, enabling substances of different densities to be separated more efficiently and improving the purity and accuracy of the separation.

[0018] 2. In this invention, certain special samples, such as liquids containing easily precipitated or easily suspended particles, can better maintain sample stability at a specific centrifugation angle, avoiding problems such as sample aggregation, breakage, or uneven distribution during centrifugation, thereby ensuring the accuracy and reliability of experimental results. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a separation device for microbial testing proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the detection cylinder in this utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the adjustment component in this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the mounting cylinder in this utility model;

[0023] Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0024] In the diagram: 1. Detection cylinder; 2. Cover plate; 3. Support plate; 4. Adjustment groove; 5. Adjustment frame; 6. Support column; 7. Rotating block; 8. Rotating rod; 9. Arc-shaped slide; 10. Positioning hole; 11. Adjusting arm; 12. Test tube plug; 13. Test tube body; 14. Test tube compartment; 15. Positioning groove; 16. Spring; 17. Limiting block; 18. Positioning column; 19. Positioning bolt; 20. Mounting cylinder; 21. Spherical ball; 22. Concave head; 23. Convex head; 24. Driving component. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example

[0027] like Figures 1-5 As shown, the present invention proposes a separation device for microbial testing, including a detection cylinder 1, a support plate 3 rotatably disposed on the inner side of the detection cylinder 1, a driving component 24 installed on the bottom inner side of the detection cylinder 1, the driving component 24 being used to drive the support plate 3 to rotate, an adjustment component being disposed on the support plate 3, the adjustment component including: a plurality of test tube bodies 13 movably connected to the support plate 3, an adjustment frame 5 symmetrically disposed on the support plate 3, a positioning column 18 sliding relative to the adjustment frame 5, and the adjustment component being used to adjust the angle of the test tube bodies 13;

[0028] During operation, the drive unit 24 is activated. In this design, the drive unit 24 is a low-frequency motor, which drives the support plate 3 to rotate inside the detection cylinder 1. The support plate 3 is equipped with an adjustment component. When it is necessary to adjust the angle of the test tube body 13, the operator can move the positioning column 18 to make it slide relative to the adjustment frame 5. Since the adjustment frame 5 is symmetrically arranged around the circumference and associated with the test tube body 13, the sliding of the positioning column 18 will cause the adjustment frame 5 to change position, thereby changing the tilt angle of the test tube body 13.

[0029] The adjustment assembly also includes: a plurality of adjustment slots 4 are provided through the support plate 3, a rotating rod 8 is rotatably connected to the inner side of the adjustment slot 4, a rotating block 7 is fixedly connected to the rotating rod 8, and a test tube chamber 14 is fixedly connected to the top of the rotating block 7.

[0030] The adjustment assembly also includes: a test tube body 13 is slidably disposed inside the test tube chamber 14, a test tube plug 12 is slidably disposed at the port of the test tube body 13, and an adjustment arm 11 is symmetrically fixedly connected to the outside of the test tube chamber 14, with the adjustment arm 11 and the adjustment frame 5 sliding relative to each other.

[0031] Furthermore, during the adjustment process, the test tube body 13 is first placed in the test tube compartment 14. The bottom of the test tube compartment 14 is equipped with a limiting block that can fit into the arc shape of the bottom of the test tube compartment 14. Then, the mouth of the test tube body 13 is plugged with a test tube stopper 12. When the angle of the test tube compartment 14 is adjusted, the position of the adjusting arm 11 on the adjusting frame 5 is adjusted, and the test tube body 13 moves synchronously with the test tube compartment 14.

[0032] Furthermore, the adjusting arm 11 and the adjusting frame 5 are designed to be concentric, which can maintain a stable rotation trajectory during angle adjustment and avoid rotational deviation caused by inconsistent centers.

[0033] The adjustment assembly also includes: multiple sets of adjustment racks 5, with two adjustment racks 5 in each set, symmetrically distributed on both sides of the test tube body 13, with arc-shaped sliding grooves 9 on the side of the two adjustment racks 5 closest to the test tube body 13, and multiple positioning holes 10 through the two adjustment racks 5.

[0034] The adjustment assembly also includes: a plurality of positioning holes 10 arranged in a circumferential array on the adjustment frame 5, and the distance between any two positioning holes 10 is 9°;

[0035] When the adjusting arm 11 is inserted into different positioning holes 10, it restricts the rotation position of the adjusting frame 5, thereby achieving precise adjustment of the angle of the test tube body 13. For example, if it is necessary to precisely adjust the angle of the test tube body 13 by 9°, the adjusting arm 11 can be pulled out from one positioning hole 10 and then inserted into the adjacent positioning hole 10, so that the angle of the test tube body 13 can be changed by 9°, achieving the purpose of precise adjustment.

[0036] The adjustment assembly also includes: a positioning groove 15 is provided at one end of the adjustment arm 11 near the adjustment frame 5, a spring 16 is installed inside the positioning groove 15, a limit block 17 is fixedly connected to the end of the spring 16, a positioning post 18 is fixedly connected to one end of the limit block 17 near the positioning hole 10, the limit block 17 slides relative to the positioning groove 15, and a positioning bolt 19 is threadedly connected between the positioning post 18 and the positioning hole 10.

[0037] When adjusting the angle, press the two positioning posts 18 to disengage them from the positioning holes 10. Then rotate the symmetrically arranged adjusting arms 11. When the positioning posts 18 are in contact with the next positioning hole 10, release the positioning posts 18. The positioning posts 18 enter the positioning holes 10 under the force of the spring 16. Then, using the positioning bolts 19, the adjusting arms 11 and the adjusting frame 5 are integrated into one unit.

[0038] The top of the detection cylinder 1 is movably connected to a cover plate 2. A concave head 22 is installed at the output end of the drive component 24. An installation cylinder 20 is installed on the outside of the concave head 22. A convex head 23 is provided at the end of the concave head 22. The convex head 23 is fixedly connected to the support plate 3. Both the concave head 22 and the convex head 23 are located inside the installation cylinder 20.

[0039] A spherical ball bearing 21 is fixedly connected to the bottom of the cover plate 2, and a support column 6 is fixedly connected to the side of the support plate 3 near the cover plate 2. The spherical ball bearing 21 and the support column 6 rotate relative to each other.

[0040] Furthermore, after the adjustment is completed, the protruding head 23 located below the support plate 3 is placed on the concave head 22, and then the cover plate 2 is closed. The bottom of the cover plate 2 is provided with spherical balls 21. During the process of the drive component 24 driving the support plate 3 to rotate, the protruding head 23 and the concave head 22 are squeezed into close contact to ensure power transmission.

[0041] In this embodiment, the test tube body 13 containing the sample reagent is first placed in the test tube compartment 14, and then the test tube stopper 12 is sealed. An adjustment component is provided on the support plate 3, and the adjustment frame 5 is symmetrically arranged around the circumference. When the angle of the test tube body 13 needs to be adjusted, the positioning post 18 is pressed to disengage from the positioning hole 10, and the adjustment arm 11 is rotated. The positioning post 18 enters the new positioning hole 10 under the action of the spring 16 and is fixed with the positioning bolt 19 to achieve precise adjustment. The distance between every two positioning holes 10 is 9 degrees. Then, the support plate 3 with the protrusion 23 and concave head 22 aligned is placed in the detection cylinder 1. The driving component 24 drives the support plate 3 to rotate stably under the cooperation of the ball bearing 21. Finally, centrifugation is completed to separate the sample.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A separation device for microbiological testing comprising a test cartridge (1), characterized in that, The inner side of the detection cylinder (1) is rotationally provided with a support plate (3), the bottom of the detection cylinder (1) is provided with a driving piece (24), the driving piece (24) is used for driving the rotation of the support plate (3), the support plate (3) is provided with an adjusting assembly, the adjusting assembly comprises: a plurality of test tube bodies (13) movably connected on the support plate (3), a plurality of adjusting frames (5) are circumferentially arranged on the support plate (3), and a positioning column (18) relatively slides on the adjusting frame (5). The adjusting assembly is used for adjusting the angle of the test tube body (13).

2. The separation device for microbiological testing according to claim 1, characterized in that The adjusting assembly further comprises: a plurality of adjusting grooves (4) are formed through the support plate (3), a rotating rod (8) is rotationally connected to the inner side of the adjusting groove (4), a rotating block (7) is fixedly connected to the rotating rod (8), and a test tube bin (14) is fixedly connected to the top of the rotating block (7).

3. A separation device for microbiological testing according to claim 2, characterized in that The adjusting assembly further comprises: the test tube body (13) is slidably arranged on the inner side of the test tube bin (14), a test tube plug (12) is slidably arranged at the port of the test tube body (13), the outer side of the test tube bin (14) is fixedly connected with an adjusting arm (11), and the adjusting arm (11) and the adjusting frame (5) relatively slide.

4. The separation device for microbiological testing according to claim 1, characterized in that The adjusting assembly further comprises: the number of the adjusting frame (5) is multiple groups, the number of each group of the adjusting frame (5) is two, and the two adjusting frames (5) are symmetrically arranged on the two sides of the test tube body (13). An arc-shaped sliding groove (9) is formed in the side of the two adjusting frames (5) close to the test tube body (13), and a plurality of positioning holes (10) are formed through the two adjusting frames (5).

5. A separation device for microbiological testing according to claim 4, characterized in that The adjusting assembly further comprises: a plurality of the positioning holes (10) are circumferentially arranged on the adjusting frame (5), and the spacing between every two positioning holes (10) is the same.

6. The separation device for microbiological testing according to claim 3, characterized in that The adjusting assembly further comprises: a positioning groove (15) is formed in one end of the adjusting arm (11) close to the adjusting frame (5), a spring (16) is arranged on the inner side of the positioning groove (15), the end of the spring (16) is fixedly connected with a limiting block (17), one end of the limiting block (17) close to the positioning hole (10) is fixedly connected with the positioning column (18), the limiting block (17) and the positioning groove (15) relatively slide, and the positioning column (18) and the positioning hole (10) are threadedly connected with a positioning bolt (19).

7. A separation device for microbiological testing according to claim 6, characterized in that The top of the detection cylinder (1) is movably connected with a cover plate (2), the output end of the driving piece (24) is provided with a socket (22), the outer side of the socket (22) is provided with a mounting cylinder (20), the end of the socket (22) is provided with a lug (23), and the lug (23) is fixedly connected between the support plates (3). The socket (22) and the lug (23) are located on the inner side of the mounting cylinder (20).

8. A separation device for microbiological testing according to claim 7, characterized in that The bottom of the cover plate (2) is fixedly connected with a spherical ball (21), one side of the support plate (3) close to the cover plate (2) is fixedly connected with a support column (6), and the spherical ball (21) and the support column (6) relatively rotate.

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