A microbial detection coating device that prevents contact with the edge of a plate

Abstract

This utility model discloses a microbial detection coating device that prevents contact with the edge of a microbial detection plate, relating to the field of microbial detection technology. It includes a coating handle and a coating rod, with the coating rod positioned below the handle and a coating stop above it. Several connecting rods are evenly arranged between the coating stop and the coating rod. The coating stop is connected to the coating handle via a rotating component, which adjusts the relative angle between the handle and the stop. This utility model creates a structure where the coating stop and the coating rod are wider at the top and narrower at the bottom. The coating stop prevents the coating rod, covered in bacterial suspension, from touching the plate wall during operation, thus avoiding contamination. The device features a grippy coating handle and adjustable angle between the handle and the stop, facilitating easy insertion of the handle and rod into the plate for coating operations, ensuring even coating, and offering good practicality.

Description

Technical Field

[0001] This utility model relates to the field of microbial detection technology, specifically a microbial detection coating device that prevents contact with the edge of a plate. Background Technology

[0002] Spreading is a commonly used method for microbial culture, not only for microbial counting and isolation but also for observing microorganisms by utilizing their colony-forming characteristics on agar plates. Traditional microbial culture techniques require a series of serial dilutions of the bacterial suspension before spreading each dilution onto the surface of an agar medium. This process uses petri dishes and spreading rods. Currently, triangular spreading rods are commonly used, but their small spreading area often makes it difficult to evenly spread the suspension at the edges of circular petri dishes. Furthermore, the edges of the spreading rod can easily come into contact with the edges of the agar plate, potentially causing contamination and affecting the accuracy of the microbial culture results, thus reducing the effectiveness of the spreading.

[0003] Based on this, a microbial detection coating device that prevents contact with the edge of the plate is now provided, which can eliminate the drawbacks of existing technical solutions. Utility Model Content

[0004] The purpose of this invention is to provide a microbial detection coating device that prevents contact with the edge of the plate, so as to solve the problems in the prior art where the coating inside the petri dish cannot be uniform and the bacterial suspension is easily contaminated to the edge of the plate, causing pollution.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A microbial detection coating device for preventing contact with the edge of a plate includes a coating handle and a coating rod. The coating rod is disposed below the coating handle, and a coating stop is disposed above the coating rod. A plurality of connecting rods are evenly arranged between the coating stop and the coating rod. The coating stop is connected to the coating handle via a rotating component, which is used to adjust the relative angle between the coating handle and the coating stop.

[0007] Preferably, both the coating rod and the coating block are hollow annular bodies, and the diameter of the coating block is larger than the diameter of the coating rod.

[0008] Preferably, the rotating component includes a slotted block fixedly installed on the upper surface of the coating block. A spherical groove is formed inside the slotted block, and a rotating ball is fitted inside the spherical groove. The top of the rotating ball is connected to the coating handle. Limiting blocks for limiting the rotation angle of the coating handle are symmetrically arranged on both sides of the slotted block.

[0009] Preferably, the coating handle is made of a high-temperature resistant abrasive material.

[0010] Preferably, the coating rod, coating block, and connecting rod are all made of high-temperature resistant plastic material.

[0011] Preferably, the method further includes a coating plate disposed below the coating handle, the coating plate being connected to the coating stop block via several connecting rods, the coating plate being circular, and the diameter of the coating plate being smaller than the diameter of the coating stop block.

[0012] Preferably, an upwardly inclined coating head is connected to the outer wall of the coating plate.

[0013] Preferably, the connection between the coating head and the coating plate has a smooth rounded corner transition.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] In this invention, the coating baffle and the coating rod or coating plate form a structure that is larger at the top and smaller at the bottom. The coating baffle can prevent the coating rod, which is covered with bacterial suspension, from hitting the plate wall during operation, thus preventing the bacterial suspension from contaminating the edge of the plate and affecting the accuracy of microbial detection. The invention also features a coating handle that is easy to hold, and the angle between the coating handle and the coating baffle can be adjusted, making it convenient for operators to insert the coating handle and coating rod into the plate for coating operations, facilitating uniform coating and improving practicality. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of Example 1.

[0017] Figure 2 This is a schematic diagram of the coating block in Example 1.

[0018] Figure 3 This is a schematic diagram of the coating handle in Example 1.

[0019] Figure 4 This is a front view of Example 1.

[0020] Figure 5 This is a three-dimensional structural diagram of Example 2.

[0021] Figure 6 This is a front view of Example 2.

[0022] Figure 7 This is a schematic diagram of the internal structure of Example 2.

[0023] Figure reference numerals: 1. Coating handle; 2. Coating rod; 3. Coating stop; 4. Connecting rod; 5. Rotating component; 6. Coating plate; 7. Coating head; 8. Slot block; 9. Spherical groove; 10. Rotating ball; 11. Limiting block; 2. Spherical groove; 3. Rotating ball; 4. Limiting block. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] Example 1

[0026] In this embodiment, as Figure 1 - Figure 4 As shown, a microbial detection coating device for preventing contact with the edge of a plate includes a coating handle 1 and a coating rod 2. The coating rod 2 is positioned below the coating handle 1. During coating, the coating rod 2 faces downwards and contacts the culture medium in the plate to evenly coat the bacterial suspension on the surface of the culture medium, providing a suitable growth environment for microorganisms for subsequent culturing, observation, and detection. A coating block 3 is positioned above the coating rod 2. The coating block 3 increases the stability of the entire device during coating operations, making it easier for operators to control the position and angle of the device during coating, reducing uneven coating or contact with the edge of the plate caused by device shaking or displacement. Several connecting rods 4 are evenly arranged between the coating block 3 and the coating rod 2, forming a stable overall structure for the entire device. This ensures that the coating block 3 and the coating rod 2 maintain a relatively fixed positional relationship during coating and work together. The coating block 3 is connected to the coating handle 1 via a rotating component 5, which is used to adjust the relative angle between the coating handle 1 and the coating block 3.

[0027] Among them, such as Figures 2-4 As shown, both the coating rod 2 and the coating baffle 3 are hollow annular bodies. The diameter of the coating baffle 3 is larger than that of the coating rod 2. The coating baffle 3 and the coating rod 2 form a structure that is larger at the top and smaller at the bottom. This allows the coating baffle 3 to prevent the coating rod 2, which is covered with bacterial suspension, from hitting the plate wall during the coating process, thus avoiding contamination of the bacterial suspension at the edge of the plate and affecting the accuracy of microbial detection.

[0028] Among them, such as Figure 2 and Figure 3As shown, the rotating component 5 includes a slot block 51 fixedly installed on the upper surface of the coating block 3. A spherical groove 52 is opened inside the slot block 51, and a rotating ball 53 is fitted inside the spherical groove 52. The top of the rotating ball 53 is connected to the coating handle 1. Limiting blocks 54 are symmetrically arranged on both sides of the slot block 51 to limit the rotation angle of the coating handle 1, so as to facilitate the operator to apply force and control the movement trajectory of the coating device, making the coating operation more flexible and accurate.

[0029] Among them, such as Figure 1 As shown, the coating handle 1 is made of high-temperature resistant frosted material, which makes it convenient for operators to hold the device for coating operations.

[0030] Among them, such as Figure 2 and Figure 3 As shown, the coating rod 2, coating block 3 and connecting rod 4 are all made of high-temperature resistant plastic, which facilitates alcohol disinfection operations. They have the advantages of being lightweight, low-cost and not easily broken. Other materials that meet specific experimental needs and budgets can also be selected.

[0031] Example 2

[0032] The difference from Example 1 is that, as in Example 1, Figures 5-7 As shown, it also includes a coating plate 6 located below the coating handle 1. The coating plate 6 is connected to the coating block 3 via several connecting rods 4. The coating plate 6 is circular, which is easy to control and rotate, facilitating the coating operation. The center of gravity of the circle is relatively concentrated in the center position, making it easier to maintain balance during operation and reducing problems such as uneven coating or liquid splashing caused by unstable center of gravity. The diameter of the coating plate 6 is smaller than the diameter of the coating block 3. When the circular coating plate 6 comes into contact with the culture dish, the contact range between its circumference and the surface of the culture medium is relatively uniform. It can coat the bacterial solution and other substances more evenly on the surface of the culture dish during operations such as rotation coating, which is beneficial to obtaining a uniform cell distribution.

[0033] Among them, such as Figure 6 and Figure 7 As shown, an upwardly tilted coating head 7 is connected to the outer wall of the coating plate 6, which allows the bacterial suspension to spread more evenly in all directions, avoiding local accumulation or uneven distribution of the bacterial solution due to improper coating angle. The upward tilt angle allows the bacterial solution to flow back to the bottom of the coating plate 6 during the coating process.

[0034] Among them, such as Figure 6 and Figure 7 As shown, the connection between the coating head 7 and the coating plate 6 is a smooth rounded transition. The coating plate 6 and the coating head 7 have relatively simple shapes and no complex edges, which makes cleaning easier after the experiment and less likely to leave bacterial liquid, cells or other impurities. This helps to maintain the cleanliness of the device, prevent cross-contamination, and extend its service life.

[0035] Before use, the device should be sterilized at high temperature to achieve a sterile state. When coating, the bacterial solution is dropped onto the plate. The operator holds the top of the coating handle 1 and places the coating rod 2 and coating block 3 into the plate, so that the coating rod 2 comes into contact with the culture medium in the plate, which facilitates the even coating of the bacterial solution to various positions on the plate. The operator holds the coating handle 1 and rotates the coating rod 2 in the plate to achieve the coating effect.

[0036] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that cannot be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A microbial detection coating device for preventing access to the edge of a flat plate, comprising a coating handle (1) and a coating stick (2), the coating stick (2) being disposed below the coating handle (1), characterized in that, A coating block (3) is provided above the coating rod (2). Several connecting rods (4) are evenly arranged between the coating block (3) and the coating rod (2). The coating block (3) is connected to the coating handle (1) through a rotating part (5). The rotating part (5) is used to adjust the relative angle between the coating handle (1) and the coating block (3).

2. The microbial detection coating device according to claim 1, characterized in that, Both the coating rod (2) and the coating block (3) are hollow rings, and the diameter of the coating block (3) is larger than the diameter of the coating rod (2).

3. The microbial detection coating device according to claim 1, characterized in that, The rotating component (5) includes a slot block (51) fixedly installed on the upper surface of the coating block (3). A spherical groove (52) is opened inside the slot block (51). A rotating ball (53) is fitted inside the spherical groove (52). The top of the rotating ball (53) is connected to the coating handle (1). Limiting blocks (54) for limiting the rotation angle of the coating handle (1) are symmetrically arranged on both sides of the slot block (51).

4. The microbial detection coating device according to claim 1, characterized in that, The coating handle (1) is made of high-temperature resistant abrasive material.

5. The microbial detection coating device according to claim 1, characterized in that, The coating rod (2), coating block (3) and connecting rod (4) are all made of high-temperature resistant plastic material.

6. The microbial detection coating device according to claim 1, characterized in that, It also includes a coating plate (6) disposed below the coating handle (1), the coating plate (6) being connected to the coating block (3) via several connecting rods (4), the coating plate (6) being circular, and the diameter of the coating plate (6) being smaller than the diameter of the coating block (3).

7. The microbial detection coating device according to claim 6, characterized in that, An upwardly inclined coating head (7) is connected to the outer wall of the coating plate (6).

8. The microbial detection coating device according to claim 7, characterized in that, The connection between the coating head (7) and the coating plate (6) has a smooth rounded corner transition.

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