Stirring device for preparing bacterial culture medium

Abstract

The utility model discloses a stirring device for preparing a bacterial culture medium, which relates to the technical field of culture medium preparation and is characterized by comprising an electric control base with a heating plate at the upper end, an outer cylinder arranged on the electric control base and a stirring cylinder arranged in the electric control base, a heat conduction cavity filled with liquid is formed among the electric control base, the outer cylinder and the stirring cylinder, the upper end of the heat conduction cavity is sealed, and the heating plate is located in the heat conduction cavity; a driving assembly electrically connected with the electric control base is arranged outside the outer cylinder, and a stirring assembly connected with the driving assembly is arranged in the stirring cylinder. According to the device, heat is conducted to the interior of the stirring barrel through liquid wrapping the exterior of the stirring barrel, so that a culture medium in the stirring barrel can be uniformly heated in the stirring process, the phenomenon of solid sticking substances is avoided, and a prepared finished product is more excellent.

Description

Technical Field

[0001] The utility model relates to the technical field of culture medium preparation, in particular to a stirring device for preparing bacterial culture medium. Background Art

[0002] Bacterial culture medium is a nutrient matrix designed specifically for promoting bacterial growth and reproduction. It is carefully formulated from a variety of nutrients to simulate the nutritional conditions required by bacteria in their natural environment. Broth culture medium is a type of bacterial culture medium, which is mainly in a flowable liquid state and can provide a uniform nutritional environment for bacteria, promoting uniform distribution and rapid growth of bacteria in the liquid. In the process of preparing broth culture medium, multiple nutrients need to be mixed, stirred and heated. Since the heating device is set at the bottom of the agitator, there are tiny granular forms in the nutrients. When local overheating occurs, solid adhesives will appear at the bottom of the heater, making the overall uniformity of the culture medium poor.

[0003] In view of this, a design or technical improvement is now proposed to solve the above problems.

[0004] The above contents are only used to assist in understanding the technical solution of the present utility model, and do not constitute an admission that the above contents are the closest prior art. Utility Model Content

[0005] The purpose of the utility model is to solve the above-mentioned shortcomings and provide a stirring device for preparing bacterial culture medium.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A stirring device for preparing bacterial culture medium comprises an electric control base with a heating plate at the upper end, an outer cylinder arranged on the electric control base and a stirring cylinder arranged in the electric control base;

[0008] A heat-conducting cavity filled with liquid is arranged between the electric control base, the outer cylinder and the mixing cylinder, the upper end of the heat-conducting cavity is sealed and the heating plate is located in the heat-conducting cavity;

[0009] A driving assembly electrically connected to the electric control base is arranged outside the outer cylinder, and a stirring assembly connected to the driving assembly is arranged inside the stirring cylinder.

[0010] Furthermore, the driving assembly includes a connecting arm arranged on the electric control base for installing the wire and an upper hanging plate arranged at one end of the connecting arm away from the electric control base and suspended above the mixing drum, and a motor is installed inside the upper hanging plate.

[0011] Furthermore, the stirring assembly includes a driving shaft connected to the motor inside the upper hanging plate and a stirring rotor rotatably arranged on the driving shaft, and one end of the driving shaft away from the motor is rotatably connected to the bottom of the stirring drum.

[0012] Furthermore, a gear is arranged at one end of the mixing rotor away from the driving shaft, and a gear ring meshing with the gear is arranged in the mixing drum.

[0013] Furthermore, the stirring rotors are arranged in groups of two and are opposed to each other up and down.

[0014] Furthermore, it also includes scrapers whose two ends are rotatably connected to the ends of the mixing rotors facing each other up and down and away from the driving shaft, and the scrapers are slidably fitted with the inner wall of the mixing drum.

[0015] Furthermore, the upper opening of the mixing drum exceeds the upper opening of the outer drum, and the outer drum is further provided with an outer ring plate enclosing the outer side of the protruding portion of the upper opening of the mixing drum, and an annular groove is formed between the outer ring plate and the upper opening of the mixing drum.

[0016] Compared with the prior art, the beneficial effect of this solution is that the device utilizes the liquid coated on the outside of the mixing drum to conduct heat to the inside of the mixing drum, so that the culture medium inside can be evenly heated during the stirring process, and no solid adhesive phenomenon will occur, making the finished product better. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0019] Figure 2 It is a cross-sectional stereoscopic schematic diagram of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the stirring component in the utility model.

[0021] In the figure: 1. electric control base; 2. outer cylinder; 21. mixing cylinder; 22. heat transfer chamber; 3. connecting arm; 31. upper hanging plate; 4. driving shaft; 41. mixing rotor; 5. gear; 51. gear ring; 6. scraper; 7. outer ring plate; 71. annular groove. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] like Figure 1-3 The stirring device for preparing bacterial culture medium shown in the figure comprises an electric control base 1 with a heating plate arranged at the upper end, an outer cylinder 2 arranged on the electric control base 1 and a stirring cylinder 21 arranged in the electric control base 1; a heat conduction cavity 22 filled with liquid is arranged between the electric control base 1, the outer cylinder 2 and the stirring cylinder 21, the upper end of the heat conduction cavity 22 is sealed and the heating plate is located in the heat conduction cavity 22; a driving component electrically connected to the electric control base 1 is arranged on the outside of the outer cylinder 2, and a stirring component connected to the driving component is arranged inside the stirring cylinder 21. The heat conduction cavity 22 is formed inside the outer cylinder 2 and the stirring cylinder 21, and clean water or liquid with good heat conductivity can be poured into the heat conduction cavity 22, and then the liquid is coated on the outer wall of the stirring cylinder 21, so that it serves as a heat conduction medium, so that the culture medium is heated more evenly during the process of stirring the culture medium inside the stirring cylinder 21, and the phenomenon of local overheating causing solid adhesives will not occur.

[0024] In one embodiment, the driving assembly includes a connecting arm 3 for installing a wire on the electric control base 1 and an upper hanging plate 31 provided at an end of the connecting arm 3 away from the electric control base 1 and suspended above the mixing drum 21. A motor is installed inside the upper hanging plate 31. The stirring assembly includes a driving shaft 4 connected to the motor inside the upper hanging plate 31 and a stirring rotor 41 rotatably arranged on the driving shaft 4. The end of the driving shaft 4 away from the motor is rotatably connected to the bottom of the mixing drum 21. Since a heat conduction cavity 22 is formed between the electric control base 1 and the mixing drum 21, it is not convenient to set a transmission structure between the stirring assembly from the electric control base 1. Therefore, by setting the upper hanging plate 31 on the upper part of the mixing drum 21 and installing the motor inside it between the driving shaft 4, transmission stirring is implemented from the upper end, and it is separated from the heating part so as not to affect each other.

[0025] In one embodiment, a gear 5 is provided at one end of the stirring rotor 4 away from the driving shaft 4, and a gear ring 51 meshing with the gear 5 is provided in the stirring drum 21. When the driving shaft 4 drives the stirring rotor 41 to rotate to implement stirring, the gear 5 provided at the outer end of the stirring rotor 41 meshes with the gear ring 51, so that the stirring rotor 41 will rotate on its own, thereby further enhancing the stirring effect and improving the uniformity of stirring.

[0026] In one embodiment, the stirring rotors 41 are arranged in groups of two and are opposed to each other up and down. The opposing stirring rotors 41 will convect the culture medium in the upper and lower parts during the stirring process, thereby ensuring that no solid particles will settle downward and accumulate. The stirring is more uniform and it is less likely that the local solid agglomeration is too high to cause adhesion after heating.

[0027] In one embodiment, it also includes scrapers 6 whose two ends are rotatably connected to the ends of the mixing rotors 41 facing each other upward and downward and away from the driving shaft 4. The scrapers 6 slide in contact with the inner wall of the mixing drum 21. Through the arrangement of the scrapers 6, the inner wall of the mixing drum 21 can be scraped during the mixing process to prevent solid particles from adhering to the inner wall.

[0028] In one embodiment, the upper opening of the mixing drum 21 exceeds the upper opening of the outer drum 2, and the outer drum 2 is further provided with an outer ring plate 7 which surrounds the outer side of the protruding portion of the upper opening of the mixing drum 21, and an annular groove 71 is formed between the outer ring plate 7 and the upper opening of the mixing drum 21. Through the setting of the annular groove 71, the nutrients will not splash to the outer end of the device during the process of pouring or stirring the nutrients.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A stirring device for preparing bacterial culture medium, comprising an electrically controlled base (1) with a heating plate disposed on the upper end, characterized in that: It comprises an outer cylinder (2) arranged on an electric control base (1) and a mixing cylinder (21) arranged inside the electric control base (1); A heat-conducting cavity (22) filled with liquid is provided between the electric control base (1), the outer cylinder (2) and the mixing cylinder (21); the upper end of the heat-conducting cavity (22) is sealed and the heating plate is located in the heat-conducting cavity (22); A driving assembly electrically connected to the electric control base (1) is arranged outside the outer cylinder (2), and a stirring assembly connected to the driving assembly is arranged inside the stirring cylinder (21).

2. The stirring device for preparing bacterial culture medium according to claim 1, characterized in that: The driving assembly comprises a connecting arm (3) arranged on an electric control base (1) for mounting a wire, and an upper hanging plate (31) arranged at one end of the connecting arm (3) away from the electric control base (1) and suspended above the mixing drum (21), wherein a motor is installed inside the upper hanging plate (31).

3. The stirring device for preparing bacterial culture medium according to claim 1 or 2, characterized in that: The stirring assembly comprises a driving shaft (4) connected to a motor inside an upper hanging plate (31) and a stirring rotor (41) rotatably arranged on the driving shaft (4); an end of the driving shaft (4) away from the motor is rotatably connected to the bottom of the stirring drum (21).

4. The stirring device for preparing bacterial culture medium according to claim 3, characterized in that: A gear (5) is provided at one end of the stirring rotor (41) away from the driving shaft (4), and a gear ring (51) meshing with the gear (5) is provided in the stirring drum (21).

5. The stirring device for preparing bacterial culture medium according to claim 4, characterized in that: The stirring rotors (41) are arranged in groups of two and are opposed to each other up and down.

6. The stirring device for preparing bacterial culture medium according to claim 5, characterized in that: It also includes scrapers (6) whose two ends are rotatably connected to the ends of the stirring rotors (41) facing each other upward and downward and away from the driving shaft (4), and the scrapers (6) are slidably fitted with the inner wall of the stirring drum (21).

7. The stirring device for preparing bacterial culture medium according to claim 1, characterized in that: The upper opening of the mixing drum (21) protrudes beyond the upper opening of the outer drum (2); the outer drum (2) is further provided with an outer ring plate (7) enclosing the outer side of the protruding portion of the upper opening of the mixing drum (21); an annular groove (71) is formed between the outer ring plate (7) and the upper opening of the mixing drum (21).

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