Full-automatic high-precision bacterium coating device

Abstract

The utility model provides a full-automatic high-precision bacterium coating device, which belongs to the field of medical equipment and comprises a motor and a bacterium liquid cylinder, a rotating shaft is mounted at the output end of the motor in a matched manner, and a driving mechanism for driving the bacterium liquid cylinder to rotate is mounted at the output end of the rotating shaft. According to the utility model, the coating speed, the coating force and the distribution of the coating liquid can be controlled with extremely high precision, the effect of almost consistent coating at each time can be ensured, bacterial suspension can be uniformly and accurately coated on the surface of a culture medium according to preset parameters, so that bacteria are more uniformly distributed on a flat plate, and the working efficiency is improved. A more reliable basis is provided for subsequent experiments such as bacterial colony counting and strain screening, the accuracy and repeatability of experimental results are greatly improved, and the opportunity that infectious microbes in the external environment enter a coating system can be effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and more specifically, to a fully automatic high-precision bacterial coating device. Background Technology

[0002] Bacterial plating is a commonly used microbiological experimental technique, primarily used to uniformly disperse bacterial samples on the surface of a solid culture medium. This facilitates subsequent operations such as colony counting, bacterial isolation, purification, or observation of bacterial growth characteristics. Bacterial plating allows the acquisition of single, dispersed bacterial colonies, which is crucial for microbiological research, clinical diagnosis, and food safety testing.

[0003] Currently, bacterial coating technology is mainly done manually. During operation, a quantitative bacterial solution is dropped onto the surface of the culture medium and evenly spread using a sterile coating stick to ensure that the bacterial solution fully covers the culture medium. After cultivation, single colonies or bacterial mosses are formed, which are used for microbial isolation, counting, or observation.

[0004] Manual coating is easily affected by the operator's technique, resulting in uneven colony distribution and affecting the accuracy of single colony isolation and counting;

[0005] Significant differences in coating results between different batches operated by the same person or between different operators lead to low efficiency and make it difficult to meet the requirements of standardized experiments. Therefore, a fully automated, high-precision bacterial coating device is proposed. Utility Model Content

[0006] The purpose of this invention is to address the problem that current bacterial coating technology mainly relies on manual coating, which leads to uneven colony distribution and affects the accuracy of single colony isolation and counting.

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0008] The present invention is as follows: a fully automatic high-precision bacterial coating device, comprising a motor and a bacterial liquid cylinder, wherein a rotating shaft is installed at the output end of the motor, and a drive mechanism for driving the bacterial liquid cylinder to rotate is installed at the output end of the rotating shaft;

[0009] The drive mechanism includes an eccentric wheel mounted on a rotating shaft. A guide groove is formed on one side surface of the eccentric wheel. The guide groove is equidistant from the contour of the eccentric wheel. A connecting shaft is installed in the guide groove and rolls in the guide groove. A connecting member is rotatably installed at the outer end of the connecting shaft, and a piston push rod is installed at one bottom end of the connecting member.

[0010] As a preferred technical solution of this utility model, the guide groove is provided with mating grooves on both sides, and an annular block is welded to the circumference of the connecting shaft, and the annular block is stuck in the mating groove and rolls.

[0011] As a preferred technical solution of this utility model, the bottom of the connector is a disc structure, which is composed of two sets of semi-discs and is rotatably installed at the connection with the connecting shaft.

[0012] As a preferred technical solution of this utility model, a support plate is fixedly installed at the bottom of the motor, a fixing ring is snapped around the periphery of the bacterial liquid cylinder, and the support plate and the fixing ring are fixed together by a connecting frame.

[0013] As a preferred technical solution of this utility model, a coating head is threadedly installed at the bottom of the bacterial liquid cylinder. The coating head is teardrop-shaped and detachable from the bottom of the bacterial liquid cylinder.

[0014] As a preferred technical solution of this utility model, the surface of the bacterial liquid cylinder is provided with scale lines to facilitate the identification of the bacterial liquid content inside the bacterial liquid cylinder.

[0015] As a preferred technical solution of this utility model, the bacterial liquid cylinder is made of medical plastic material.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. It can control the speed, intensity, and distribution of the coating solution with extremely high precision, ensuring that each coating achieves a nearly consistent effect. It can evenly and accurately coat the bacterial suspension on the surface of the culture medium according to the preset parameters, making the distribution of bacteria on the plate more uniform. This provides a more reliable basis for subsequent experiments such as colony counting and strain screening, and greatly improves the accuracy and reproducibility of experimental results.

[0018] 2. It can effectively reduce the chance of contaminants from the external environment entering the coating system, ensuring the accuracy and reproducibility of experimental results, reducing sample waste and the number of repeated experiments due to experimental failures, and further reducing experimental costs. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of the fully automatic high-precision bacterial coating device provided by this utility model;

[0020] Figure 2 Another perspective schematic diagram of the fully automatic high-precision bacterial coating device provided by this utility model;

[0021] Figure 3 A schematic diagram of the connecting component structure of the fully automatic high-precision bacterial coating device provided by this utility model;

[0022] Figure 4 A schematic diagram of the matching groove and annular block structure of the fully automatic high-precision bacterial coating device provided by this utility model;

[0023] Figure 5 A schematic diagram of the bacterial liquid cylinder of the fully automatic high-precision bacterial coating device provided by this utility model.

[0024] The diagram shows: 1. Motor; 2. Bacterial liquid cylinder; 3. Rotating shaft; 4. Drive mechanism; 401. Eccentric wheel; 402. Guide groove; 403. Connecting shaft; 404. Connecting piece; 405. Piston push rod; 5. Fitting groove; 6. Annular block; 7. Support plate; 8. Fixing ring; 9. Coating head; 10. Scale line. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0026] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0027] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] like Figures 1-4 As shown, this embodiment proposes a fully automatic high-precision bacterial coating device, including a motor 1 and a bacterial liquid cylinder 2. A rotating shaft 3 is installed at the output end of the motor 1, and a drive mechanism 4 for driving the bacterial liquid cylinder 2 to rotate is installed at the output end of the rotating shaft 3.

[0030] The drive mechanism 4 includes an eccentric wheel 401 mounted on a rotating shaft 3. A guide groove 402 is formed on one side surface of the eccentric wheel 401, equidistant from the contour of the eccentric wheel 401. A connecting shaft 403 is installed in the guide groove 402, rolling within it. A connector 404 is rotatably mounted on the outer end of the connecting shaft 403, and a piston push rod 405 is mounted on the bottom end of the connector 404. Driven by a motor 1, the rotating shaft 3 rotates, causing the eccentric wheel 401 to rotate. Simultaneously, the connecting shaft 403 rolls in the guide groove 402, and the connector 404 pulls the piston push rod 405 up and down. The control system precisely controls the speed and rotation time of the motor 1 to achieve precise control of the bacterial solution coating amount.

[0031] like Figure 4 As shown, in a preferred embodiment, based on the above method, the guide groove 402 is further provided with mating grooves 5 on both sides, and an annular block 6 is welded to the circumferential surface of the connecting shaft 403. The annular block 6 is engaged in the mating groove 5 and rolls. When the connecting shaft 403 rotates, the annular block 6 is engaged in the mating groove 5 and is not easy to disengage, so that the connecting shaft 403 can roll stably on the eccentric wheel 401.

[0032] like Figure 3 and Figure 4 As shown, in a preferred embodiment, based on the above method, the bottom of the connector 404 is a disc structure, which consists of two sets of semi-discs and is rotatably mounted at the connection point with the connecting shaft 403. Before use, the two sets of semi-discs are opened, and the piston push rod 405 and the bacterial liquid cylinder 2 are installed inside to allow for the replacement of different bacterial liquid cylinders 2 to achieve different bacterial coating requirements.

[0033] like Figure 2 As shown, in a preferred embodiment, based on the above method, a support plate 7 is further fixedly installed at the bottom of the motor 1, and a fixing ring 8 is snapped onto the periphery of the bacterial liquid cylinder 2. The support plate 7 and the fixing ring 8 are fixed together by a connecting frame. The device is connected to a robot arm, which serves as the actuator of the robot arm, and can achieve fully automatic control of the coating path and coating speed through the control of the robot arm.

[0034] like Figure 1 As shown, in a preferred embodiment, based on the above method, a coating head 9 is further threadedly installed at the bottom of the bacterial culture cylinder 2. The coating head 9 is teardrop-shaped and detachable from the bottom of the bacterial culture cylinder 2. During use, different coating heads 9 can be replaced according to different coating requirements.

[0035] like Figure 1As shown, in a preferred embodiment, based on the above method, the surface of the bacterial liquid cylinder 2 is further provided with scale lines 10 to facilitate identification of the bacterial liquid content inside the bacterial liquid cylinder 2.

[0036] like Figure 1 As shown, in a preferred embodiment, based on the above method, the bacterial culture container 2 is further made of medical-grade plastic material. This makes it safer and more reliable, eliminating the risk of contamination.

[0037] Specifically, when using this fully automatic high-precision bacterial coating device: the device is connected to a robotic arm, which acts as the actuator of the robotic arm. Before use, different coating heads 9 can be replaced according to different coating requirements. Open the two sets of semi-circular discs, install the piston push rod 405 and the bacterial liquid cylinder 2, and drive the motor 1 to rotate the rotating shaft 3. The rotation of the rotating shaft 3 drives the eccentric wheel 401 to rotate. At this time, the connecting shaft 403 rolls in the guide groove 402. When the connecting shaft 403 rotates, the annular block 6 is stuck in the mating groove 5 and is not easy to disengage. The connecting piece 404 pulls the piston push rod 405 up and down. The control system can achieve precise control of the bacterial liquid coating amount by precisely controlling the speed and rotation time of the motor 1.

[0038] All technical features in this embodiment can be freely combined according to actual needs.

[0039] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A fully automatic high-precision bacterial coating device, comprising a motor (1) and a bacterial solution cylinder (2), characterized in that, The output end of the motor (1) is fitted with a rotating shaft (3), and the output end of the rotating shaft (3) is fitted with a driving mechanism (4) for driving the bacterial liquid cylinder (2) to rotate. The drive mechanism (4) includes an eccentric wheel (401) mounted on a rotating shaft (3). A guide groove (402) is provided on one side surface of the eccentric wheel (401). The guide groove (402) is equidistant from the contour of the eccentric wheel (401). A connecting shaft (403) is installed in the guide groove (402). The connecting shaft (403) rolls in the guide groove (402). A connector (404) is rotatably mounted on the outer end of the connecting shaft (403). A piston push rod (405) is installed at one bottom end of the connector (404).

2. The fully automatic high-precision bacterial coating device according to claim 1, characterized in that, Both sides of the guide groove (402) are provided with mating grooves (5), and an annular block (6) is welded to the circumference of the connecting shaft (403). The annular block (6) is stuck in the mating groove (5) and rolls.

3. The fully automatic high-precision bacterial coating device according to claim 1, characterized in that, The bottom of the connector (404) is a disc structure, which consists of two sets of semi-discs and is rotatably installed at the connection with the connecting shaft (403).

4. The fully automatic high-precision bacterial coating device according to claim 1, characterized in that, A support plate (7) is fixedly installed at the bottom of the motor (1), and a fixing ring (8) is snapped around the periphery of the bacterial liquid cylinder (2). The support plate (7) and the fixing ring (8) are fixed together by a connecting frame.

5. The fully automatic high-precision bacterial coating device according to claim 1, characterized in that, The bottom of the bacterial liquid cylinder (2) is threaded with a coating head (9), which is teardrop-shaped and detachable from the bottom of the bacterial liquid cylinder (2).

6. The fully automatic high-precision bacterial coating device according to claim 1, characterized in that, The surface of the bacterial liquid cylinder (2) is provided with scale lines (10) to facilitate identification of the bacterial liquid content inside the bacterial liquid cylinder (2).

7. The fully automatic high-precision bacterial coating device according to claim 1, characterized in that, The bacterial culture container (2) is made of medical plastic.

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