Experimental device for detecting antibacterial performance

Abstract

The utility model discloses an experimental device for detecting antibacterial performance. The experimental device comprises a box body, a drawer box, a placing tray and an identification plate, the box body comprises a box body shell and an imaging assembly, a window is arranged on the side face of the box body shell, the imaging assembly is arranged on the upper portion of the box body shell, the drawer box is arranged at the window, and the containing disc is placed on the drawer box. According to the utility model, images of a plurality of culture dishes can be obtained at one time through the imaging assembly, and image information in each culture dish can be obtained at one time through the image processing software, so that rapid evaluation on the antibacterial performance of the culture dishes is realized. According to the specific structure, images of a plurality of culture dishes in the detection box can be obtained at a time through the movable image sensor unit, imaging parameters of the culture dishes are basically consistent, and unification of subsequent software recognition results is facilitated; and through the identification plate arranged below the transparent culture dish, the image identification efficiency and accuracy can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of experimental equipment technology, specifically to an experimental device for testing antibacterial properties. Background Technology

[0002] The overuse and misuse of antibiotics have led to the emergence of multidrug-resistant bacteria, prompting increasing attention to the use of antibacterial materials, among which highly effective bactericidal gels have received widespread attention. The inventors published a paper titled "Molybdate-Functionalized Polyacrylamide Gel and Its Antibacterial Properties" in *Modern Chemical Industry Research* in 2023. During the development of polyacrylamide gels, it is necessary to evaluate the antibacterial properties of the product. The inventors used the disc diffusion method to conduct in vitro antibacterial experiments on the samples. *Staphylococcus aureus* (ATCC 25923) and *Escherichia coli* (ATCC 25922) were inoculated into nutrient broth medium. 100 μL of *Escherichia coli* and *Staphylococcus aureus* (approximately 10 CFU / mL) were evenly distributed on agar plates. The gel (6 mm in diameter) was placed on the agar plates and incubated at 37°C for 24 h. The radius of the inhibition zone was measured and recorded to assess antibacterial activity. To obtain a suitable product formula, multiple sets of experiments need to be set up during the research and development process. Relying entirely on manual labor to measure the radius of the inhibition zone and record the experimental results requires a lot of manpower. Currently, there are also automated devices that use automated robotic arms to automate the experimental process, but the cost of such equipment is relatively high, and such equipment is not very suitable for ordinary universities. Summary of the Invention

[0003] The purpose of this invention is to provide an experimental device for testing antibacterial properties, so as to solve the problems existing in the prior art.

[0004] To achieve the above objectives, the present invention provides an experimental device for testing antibacterial properties, comprising a box, a drawer box, a placement tray, and a label plate; the box includes a box shell and an imaging component, the box shell being a hollow rectangular box structure with a window on the side, the imaging component being disposed on the upper part of the box shell, the drawer box being disposed at the window, and the placement tray being placed on the drawer box.

[0005] Furthermore, the drawer box includes a side panel and a bottom panel. The bottom panel is inserted into the box shell through a window. The side panel is located on one side of the bottom panel. The window is closed after the bottom panel is inserted into the box shell.

[0006] Furthermore, the placement tray is provided with multiple arrayed positioning through holes, and retrieval through slots are provided on both sides of the placement tray.

[0007] Furthermore, the bottom plate has positioning protrusions at its edge and multiple openings.

[0008] Furthermore, the experimental apparatus also includes an identification plate, which is positioned below the placement tray, and the upper surface of the identification plate is provided with an array of differently colored squares.

[0009] Furthermore, the imaging assembly includes an image sensor unit, a reciprocating motion unit, and a control board; the image sensor unit is a CCD image sensor unit; the reciprocating motion unit includes an optical axis, a drive synchronous belt, a synchronous belt fixing component, a synchronous belt drive component, and a synchronous belt tensioning component; the optical axis is arranged perpendicularly to the side of the housing with the window, and both ends are fixed to the inner wall of the housing; the synchronous belt drive component is fixed on the housing on one side of the optical axis, the synchronous belt tensioning component is fixed on the housing on the opposite side of the synchronous belt drive component, the drive synchronous belt is disposed between the synchronous belt drive component and the synchronous belt tensioning component, the synchronous belt fixing component is fixedly disposed on the image sensor unit, one side is fixedly connected to the drive synchronous belt, and the upper part is provided with an optical axis sliding sleeve.

[0010] Furthermore, a proximity positioning protrusion is provided on the upper part of the image sensor unit, and a proximity switch is provided at the corresponding position on the housing shell.

[0011] Furthermore, the control board is electrically connected to the image sensor unit and the synchronous belt drive, and the control board is equipped with a switch, which is located on the upper part of the housing.

[0012] Furthermore, a transparent plate is provided below the image sensor unit.

[0013] This invention proposes an experimental device for testing antibacterial properties. The imaging component can acquire images of multiple culture dishes at once, and the image processing software can acquire image information of each culture dish at once, thereby enabling rapid evaluation of their antibacterial properties.

[0014] In terms of specific structure, the movable image sensor unit can acquire images of multiple culture dishes within the detection chamber simultaneously. The imaging parameters of each culture dish are basically consistent, which is beneficial for the consistency of subsequent software recognition results. The label plate set under the transparent culture dish can effectively improve the efficiency and accuracy of image recognition. The overall structure adopts a drawer-type structure, with a small overall size, making it suitable for laboratory use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0016] Figure 2 This is a schematic diagram of a drawer box, a placement tray, and a label plate, representing another embodiment of the present utility model.

[0017] Figure 3 This is a partially enlarged schematic diagram of the imaging component of this utility model.

[0018] Figure 4 This is a partially enlarged schematic diagram of the image sensor unit of this utility model. Detailed Implementation

[0019] 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.

[0020] As attached Figure 1-4 As shown, the experimental device for testing antibacterial properties involved in this utility model includes a box 1, a drawer box 2, a placement tray 3, and a label plate 4.

[0021] As attached Figure 1-2 As shown, the housing 1 includes a housing shell 11 and an imaging component 12. The housing shell 11 is a hollow rectangular box structure with a window 111 on the side and the imaging component 12 is arranged on the upper part of the housing shell 11.

[0022] The drawer box 2 includes a side panel 21 and a bottom plate 22. The bottom plate 22 can be inserted into the box shell 11 through a window 111. The side panel 21 is located on one side of the bottom plate 22. After the bottom plate 22 is inserted into the box shell 11, the window 111 can be closed.

[0023] The placement tray 3 is removably placed on the bottom plate 22 of the drawer box 2, and multiple petri dishes are placed on the placement tray 3.

[0024] More specifically, the placement tray 3 is provided with a plurality of arrayed positioning through holes 31 for placing culture dishes. At the same time, there are retrieval grooves 32 on both sides of the placement tray, which can be easily picked up by hand.

[0025] The base plate 22 has a positioning protrusion 221 at its edge to define the position of the placement plate 3 and the label plate 4. At the same time, the base plate 22 has multiple openings, which can achieve a lightweight design while accommodating the culture dish.

[0026] Furthermore, the label plate 4 is positioned below the placement tray 3. The upper surface of the label plate 4 is provided with an array of different colored squares. By setting the different colored squares, image processing can be facilitated during image recognition, and the area of ​​the inhibition zone can be obtained more quickly. At the same time, the thickness of bacteria / culture medium can be quantitatively evaluated by the depth of the color, thereby improving the accuracy of the evaluation results.

[0027] As attached Figure 3 ,4 As shown, the imaging component 12 includes an image sensor unit 121, a reciprocating motion unit 122, and a control board 123.

[0028] The image sensor unit 121 is a CCD image sensor unit, a commercially available product, which includes an imaging element and a fill light strip. Its specific structure is an existing product and is not protected by this application.

[0029] The reciprocating motion unit 122 includes an optical axis 1221, a driving synchronous belt 1222, a synchronous belt fixing component 1223, a synchronous belt driving component 1223, and a synchronous belt tensioning component 1224.

[0030] The optical axis 1221 is arranged perpendicularly to the side of the housing 11 with the window 111, and its two ends are fixed to the inner wall of the housing 11. The synchronous belt drive 1223 is fixed on the housing 11 on one side of the optical axis 1221, and the synchronous belt tensioner 1224 is fixed on the housing 11 on the opposite side of the synchronous belt drive 1223. The synchronous belt 1222 is arranged between the synchronous belt drive 1223 and the synchronous belt tensioner 1224. The synchronous belt drive 1223 includes a drive motor, as well as gears and synchronous pulleys driven by the motor.

[0031] The synchronous belt fixing member 1223 is fixedly mounted on the image sensor unit 121, and is fixedly connected to the driving synchronous belt 1222 on one side. An optical axis sliding sleeve a is provided on the upper part, so that the image sensor unit 121 can reciprocate under the drive of the synchronous belt driving member 1223.

[0032] Furthermore, a proximity positioning protrusion 1211 is provided on the upper part of the image sensor unit 121, and a proximity switch 11a is provided at the corresponding position on the housing 11. The position of the image sensor unit 121 can be obtained by the cooperation of the proximity positioning protrusion 1211 and the proximity switch 11a for initialization.

[0033] The control board 123 is electrically connected to the image sensor unit 121 and the synchronous belt drive 1223, which can control their operation and obtain the image of the image sensor unit 121. At the same time, a switch 1231 is provided. The switch 1231 is located on the upper part of the housing 11. The image shooting operation is performed by pressing the switch.

[0034] Furthermore, a transparent plate 124 can be provided below the image sensor unit 121 to isolate the image sensor unit 121, the reciprocating motion unit 122, and the external environment, thereby reducing the impact of adverse factors such as humidity.

[0035] It should be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. An experimental apparatus for testing antibacterial properties, characterized in that, It includes a box body, a drawer box, a placement tray, and a label plate; the box body includes a box shell and an imaging component. The box shell is a hollow rectangular box structure with a window on the side. The imaging component is located on the upper part of the box shell. The drawer box is located at the window, and the placement tray is placed on the drawer box.

2. The experimental apparatus for testing antibacterial properties according to claim 1, characterized in that, The drawer box includes a side panel and a bottom panel. The bottom panel is inserted into the box shell through a window. The side panel is located on one side of the bottom panel. The window is closed after the bottom panel is inserted into the box shell.

3. The experimental apparatus for testing antibacterial properties according to claim 2, characterized in that, The placement tray is provided with multiple arrayed positioning through holes, and retrieval through slots are provided on both sides of the placement tray.

4. The experimental apparatus for testing antibacterial properties according to claim 3, characterized in that, The base plate has a positioning protrusion at its edge and multiple openings.

5. The experimental apparatus for testing antibacterial properties according to claim 4, characterized in that, The experimental apparatus also includes an identification plate, which is placed below the placement tray, and the upper surface of the identification plate is provided with an array of different colored squares.

6. The experimental apparatus for testing antibacterial properties according to claim 1, characterized in that, The imaging assembly includes an image sensor unit, a reciprocating motion unit, and a control board; the image sensor unit is a CCD image sensor unit; the reciprocating motion unit includes an optical axis, a drive synchronous belt, a synchronous belt fixing component, a synchronous belt drive component, and a synchronous belt tensioning component; the optical axis is arranged perpendicularly to the side of the housing shell with the window, and its two ends are fixed to the inner wall of the housing shell; the synchronous belt drive component is fixed on the housing shell on one side of the optical axis, the synchronous belt tensioning component is fixed on the housing shell on the opposite side of the synchronous belt drive component, the drive synchronous belt is disposed between the synchronous belt drive component and the synchronous belt tensioning component, the synchronous belt fixing component is fixedly disposed on the image sensor unit, one side is fixedly connected to the drive synchronous belt, and the upper part is provided with an optical axis sliding sleeve.

7. The experimental apparatus for testing antibacterial properties according to claim 6, characterized in that, A proximity positioning protrusion is also provided on the upper part of the image sensor unit, and a proximity switch is provided at the corresponding position on the housing shell.

8. The experimental apparatus for testing antibacterial properties according to claim 6, characterized in that, The control board is electrically connected to the image sensor unit and the synchronous belt drive. The control board is equipped with a switch, which is located on the upper part of the housing.

9. The experimental apparatus for testing antibacterial properties according to claim 6, characterized in that, A transparent plate is placed below the image sensor unit.

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