Culture medium disinfection cabinet capable of realizing uniform disinfection

Abstract

The utility model relates to the technical field of disinfection devices, in particular to a culture medium disinfection cabinet uniform in disinfection, which comprises a cabinet body, the outer surface of the cabinet body is rotatably connected with a switching valve, the interior of the cabinet body is slidably connected with a culture medium drawing cabinet, and the interior of the cabinet body is fixedly connected with a steam generator and an ozone generator. The steam generator and the ozone generator are arranged in the cabinet body, so that the occupied area of the whole device is reduced, and a high-temperature steam disinfection mode or an ozone disinfection mode can be switched through the arrangement of the spherical valve; by arranging the booster pump at the conveying pipe, two disinfection modes can be pressurized only by purchasing one booster pump, the purchasing cost of the culture medium disinfection cabinet is reduced, the sprayer can be driven to reciprocate through cooperation of the motor and the gear, then uniform disinfection of all the culture medium disinfection cabinets is completed, the application scene is wide, and the practicability is high. The simple mechanical structure is convenient to maintain.

Description

Technical Field

[0001] This utility model relates to the field of disinfection device technology, and in particular to a culture medium disinfection cabinet that provides uniform disinfection. Background Technology

[0002] With the rise of microbiology research and the development of the biotechnology industry, the requirements for sterile environments are becoming increasingly stringent. In the process of microbial cultivation, the sterility of the culture medium is one of the key factors for experimental success and product quality assurance. With the expansion of research and production scale, efficient, safe, and stable sterilization of large quantities of culture media has become an urgent need, making the improvement and innovation of culture medium sterilization cabinets an inevitable trend. Utility model publication CN217905481U discloses a culture medium sterilization cabinet for uniform sterilization, including a sterilization chamber. A steam pipe is fixedly installed at the bottom of the sterilization chamber, with its outlet extending into the chamber. A central shaft is fixedly connected to the rear inner wall of the sterilization chamber, and a turntable is rotatably connected to the central shaft. Ultraviolet germicidal lamps are fixedly installed on both sides of the turntable within the sterilization chamber. Blades arranged in a ring around the central shaft are fixedly connected to the side wall of the turntable, with the outlet of the steam pipe facing the blade surface. An eccentric shaft is fixedly connected to the front face of the turntable, and a culture medium hanging plate is located below the eccentric shaft, rotating in conjunction with the eccentric shaft. This invention uses steam discharged from a steam pipeline as the driving force to rotate a turntable, enabling the culture medium hanging plate to rotate and receive uniform heating and irradiation. However, this invention requires multiple external air pumps and pressurization devices, resulting in high procurement costs. The external steam generator and ozone generator also require a large footprint and have stringent environmental requirements. Furthermore, because the culture medium hanging plate relies on steam for rotation, it cannot simultaneously sterilize large quantities of culture media, thus limiting its application scenarios. Utility Model Content

[0003] The purpose of this utility model is to solve the technical problems mentioned in the background art.

[0004] This utility model adopts the following technical solution: a culture medium disinfection cabinet for uniform disinfection, comprising a cabinet body, a switching valve rotatably connected to the outer surface of the cabinet body, a culture medium drawer slidably connected inside the cabinet body, a steam generator and an ozone generator fixedly connected inside the cabinet body, a steam pipe and a delivery pipe fixedly connected to the top of the steam generator, an ozone pipe fixedly connected to the top of the ozone generator, a rigid pipe fixedly connected to one end of the delivery pipe, a telescopic pipe fixedly connected to the end of the rigid pipe away from the delivery pipe, a nozzle fixedly connected to the end of the telescopic pipe away from the rigid pipe, a serrated plate fixedly connected to the bottom surface of the nozzle, and a first gear, a second gear and a third gear rotatably connected inside the cabinet body, a lower gear fixedly connected to the surface of the first gear, and an upper gear fixedly connected to the surface of the third gear.

[0005] Preferably, the steam pipeline and ozone pipeline are internally fixedly connected with sealing gaskets, and rotatably connected with ball valves. A drive shaft is fixedly connected to the top of the ball valve, and a bevel gear driven wheel is fixedly connected to the end of the drive shaft away from the ball valve. A bevel gear driving wheel meshes with the surface of the bevel gear driven wheel, and the surface of the bevel gear driving wheel is fixedly connected to one end of the switching valve. Here, the sealing gaskets ensure the sealing of the ball valve. When the switching valve is rotated, it drives the bevel gear driving wheel, which in turn meshes with the driven bevel gear, thus driving the drive shaft and rotating the ball valve, completing the switch between steam disinfection and ozone disinfection. This simple mechanical structure greatly reduces equipment costs and subsequent maintenance costs, and facilitates personnel switching between disinfection modes.

[0006] Preferably, a booster pump is fixedly connected to the top of the ozone generator. The input end of the booster pump is connected to one end of the steam pipeline or the ozone pipeline, and the output end of the booster pump is connected to one end of the delivery pipe. Here, since the ball valve ensures that only one gas, either high-temperature steam or ozone, passes through, only one booster pump is needed to pressurize the high-temperature steam or ozone gas, reducing the equipment procurement cost.

[0007] Preferably, the lower gear, upper gear, and serrated plate are on the same horizontal plane, with the lower gear and upper gear alternately meshing on the surface of the serrated plate. Here, when rotated to a certain angle, the upper gear meshes with the serrated plate. During the rotation of the upper gear, the serrated plate will be driven to move upward, thereby driving the nozzle to move upward to complete the spraying. Similarly, the lower gear can drive the nozzle to move downward to spray. The reciprocating motion of the nozzle is completed during the alternating meshing of the upper and lower gears, thereby uniformly sterilizing all the culture medium tanks. This allows for the simultaneous sterilization of a large number of culture media at one time, making the application scenarios more extensive. The simple mechanical structure facilitates subsequent maintenance.

[0008] Preferably, a motor is fixedly connected to the outer surface of the cabinet, and the second gear is fixedly connected to the output end of the motor. Here, when the motor starts, it will drive the second gear to start rotating, which in turn drives the first gear and the third gear to start rotating. Therefore, the lower gear fixedly connected to the first gear and the upper gear fixedly connected to the third gear can complete the task of driving the nozzle to reciprocate. When the motor is turned off, the nozzle can be fixed to a certain layer of culture medium drawer for sterilization of a single layer of culture medium drawer, which makes it convenient for personnel to adjust the operation of the motor according to the actual use scenario.

[0009] Preferably, a positioning tube is fixedly connected to the bottom surface of the nozzle, and the positioning tube is slidably connected to the surface of the rigid tube. Here, the positioning tube limits the position of the telescopic tube in the telescopic state, preventing the position of the telescopic tube from shifting and affecting the adjacent mechanical structure. At the same time, the boss at the bottom end of the positioning tube can also accommodate the telescopic tube in the retracted state, reducing maintenance problems during subsequent use.

[0010] Preferably, the positioning tube has a groove inside, and a slide bar is fixedly connected to the surface of the rigid tube. Here, by sliding the slide bar inside the groove, it can be ensured that the positioning tube will not shift or rotate during the sliding process on the surface of the rigid tube, thereby avoiding the problems of misalignment and torsion of the telescopic tube.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, by placing the steam generator and ozone generator inside a cabinet, the footprint of the entire device is reduced. The external switching valve and bevel gear design facilitate easy control of the ball valve. A sealing gasket ensures the ball valve's airtightness. The ball valve allows switching between high-temperature steam sterilization and ozone sterilization modes. After ozone sterilization, switching to high-temperature steam sterilization can also treat residual ozone in the pipeline, accelerating its decomposition and removal. The booster pump at the delivery pipe allows for the use of only one booster pump to operate both sterilization modes. The pressure operation reduces the procurement cost of the culture medium sterilizer. The motor drives the second gear to rotate, which in turn drives the first and third gears to rotate. The lower gear fixed to the first gear and the upper gear fixed to the third gear drive the nozzle to reciprocate, which can uniformly sterilize the four layers of culture medium drawers. This allows for the simultaneous sterilization of a large number of culture media at one time. Alternatively, the motor can be turned off to sterilize a single layer of culture medium drawers, improving sterilization efficiency and reducing energy costs. It is suitable for sterilizing a small number of culture media and has a wide range of applications. The simple mechanical structure also facilitates subsequent maintenance.

[0013] 2. In this utility model, by setting a positioning tube on the outside of the telescopic tube, the telescopic tube can be accommodated and its position can be limited. By opening a sliding groove inside the positioning tube and setting a sliding strip on the surface of the rigid tube, the positioning tube can be ensured to slide on the surface of the rigid tube, avoiding the problems of misalignment and torsion of the telescopic tube, and reducing the maintenance problems of the culture medium sterilizer during subsequent use. Attached Figure Description

[0014] Figure 1 A schematic diagram of a culture medium sterilizer that provides uniform sterilization is provided for this utility model.

[0015] Figure 2 This utility model provides an internal schematic diagram of a culture medium sterilizer that provides uniform sterilization.

[0016] Figure 3 The present invention provides a top view of the lower end of a culture medium sterilizer for uniform sterilization.

[0017] Figure 4 A schematic diagram of the working of a ball valve in a culture medium sterilizer for uniform sterilization is provided for this utility model.

[0018] Figure 5 This utility model provides a schematic diagram of the working of the nozzle of a sterilizing cabinet for uniformly sterilizing culture medium.

[0019] Figure 6 Enlarged view of the separation of the positioning tube and rigid tube in a culture medium sterilizer for uniform sterilization proposed in this utility model;

[0020] Legend:

[0021] 1. Cabinet; 2. Switching valve; 3. Culture medium drawer; 4. Steam pipeline; 5. Steam generator; 6. Ozone pipeline; 7. Ozone generator; 8. Booster pump; 9. Ball valve; 10. Delivery pipe; 11. Bevel gear drive wheel; 12. Bevel gear driven wheel; 13. Drive shaft; 14. Sealing gasket; 15. Rigid pipe; 16. Sliding strip; 17. Telescopic pipe; 18. Positioning pipe; 19. Nozzle; 20. Serrated plate; 21. Lower gear; 22. Upper gear; 23. First gear; 24. Second gear; 25. Third gear; 26. Motor; 27. Slide groove. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1

[0025] Please see Figure 1-5This utility model provides a technical solution: a culture medium sterilizer for uniform sterilization, comprising a cabinet body 1, a switching valve 2 rotatably connected to the outer surface of the cabinet body 1, a culture medium drawer 3 slidably connected inside the cabinet body 1, a steam generator 5 and an ozone generator 7 fixedly connected inside the cabinet body 1, a steam pipe 4 and a delivery pipe 10 fixedly connected to the top of the steam generator 5, an ozone pipe 6 fixedly connected to the top of the ozone generator 7, a rigid pipe 15 fixedly connected to one end of the delivery pipe 10, a telescopic pipe 17 fixedly connected to the end of the rigid pipe 15 away from the delivery pipe 10, a nozzle 19 fixedly connected to the end of the telescopic pipe 17 away from the rigid pipe 15, a serrated plate 20 fixedly connected to the bottom surface of the nozzle 19, and a first gear 23 and a second gear rotatably connected inside the cabinet body 1. Gear 24 and third gear 25 are connected together. A lower gear 21 is fixedly connected to the surface of the first gear 23, and an upper gear 22 is fixedly connected to the surface of the third gear 25. A sealing gasket 14 is fixedly connected inside the steam pipe 4 and the ozone pipe 6. A ball valve 9 is rotatably connected inside the steam pipe 4 and the ozone pipe 6. A drive shaft 13 is fixedly connected to the top of the ball valve 9. A bevel gear driven wheel 12 is fixedly connected to the end of the drive shaft 13 away from the ball valve 9. A bevel gear driving wheel 11 meshes with the surface of the bevel gear driven wheel 12. The surface of the bevel gear driving wheel 11 is fixedly connected to the switching valve 2. The operator can first rotate the switching valve 2, which drives the bevel gear driving wheel 11 to mesh with the bevel gear driven wheel 12, and then the drive shaft 13 is linked to drive the ball valve 9 to rotate. The sealing gasket 14 ensures the sealing of the ball valve 9. Adjusting the ball valve 9 connects the ozone pipeline 6 and the delivery pipeline 10. Then, the ozone generator 7 and booster pump 8 are turned on to begin ozone disinfection. The simple mechanical structure significantly reduces equipment and maintenance costs, and facilitates easy switching between disinfection modes. The top of the ozone generator 7 is fixedly connected to the booster pump 8. The input end of the booster pump 8 is connected to one end of the steam pipeline 4 or the ozone pipeline 6, and the output end of the booster pump 8 is connected to one end of the delivery pipeline 10. Because the ball valve 9 ensures that only one gas (high-temperature steam or ozone) passes through, only one booster pump 8 is needed to pressurize the high-temperature steam or ozone gas, reducing equipment procurement costs. (Lower gear 21...) The upper gear 22 and the serrated plate 20 are on the same horizontal plane. The lower gear 21 alternately meshes with the upper gear 22 on the surface of the serrated plate 20. When rotated to a certain angle, the upper gear 22 meshes with the serrated plate 20. During the rotation of the upper gear 22, the serrated plate 20 will be driven to move upward, thereby driving the nozzle 19 to move upward to complete the spraying. Similarly, the lower gear 21 can drive the nozzle 19 to move downward to spray. The reciprocating motion of the nozzle 19 is completed during the alternating meshing of the upper gear 22 and the lower gear 21, thereby uniformly disinfecting all the culture medium drawers 3. The simple mechanical structure facilitates subsequent parts replacement and maintenance. A motor 26 is fixedly connected to the outer surface of the cabinet 1, and the second gear 24 is fixedly connected to the output end of the motor 26.When the motor 26 is started, it drives the second gear 24 to rotate, which in turn drives the first gear 23 and the third gear 25 to rotate. Therefore, the lower gear 21, fixedly connected to the first gear 23, and the upper gear 22, fixedly connected to the third gear 25, are able to drive the nozzle 19 to reciprocate. When the motor 26 is turned off, the nozzle 19 can be fixed to a single layer of the culture medium drawer 3 for sterilization. This allows for easy adjustment of the motor 26's operation based on actual usage, helps reduce energy costs, and broadens the application scenarios.

[0026] Example 2

[0027] Please see Figure 5-6 A positioning tube 18 is fixedly connected to the bottom surface of the nozzle 19. The positioning tube 18 is slidably connected to the surface of the rigid tube 15. The positioning tube 18 limits the position of the telescopic tube 17 in its telescopic state, preventing the telescopic tube 17 from shifting and affecting the adjacent mechanical structure. At the same time, the boss at the bottom end of the positioning tube 18 can also accommodate the telescopic tube 17 in its retracted state, reducing maintenance problems during subsequent use. A sliding groove 27 is opened inside the positioning tube 18, and a sliding strip 16 is fixedly connected to the surface of the rigid tube 15. By sliding the sliding strip 16 inside the sliding groove 27, it can be ensured that the positioning tube 18 will not shift or rotate during the sliding process on the surface of the rigid tube 15, thereby avoiding the problems of misalignment and torsion of the telescopic tube 17, and reducing the maintenance problems of the culture medium sterilizer.

[0028] Working principle: When using the culture medium sterilizer, firstly, by rotating the switching valve 2, the driving bevel gear 11 is driven by the switching valve 2, which in turn meshes with the driven bevel gear 12, and then the drive shaft 13 is linked to drive the ball valve 9 to rotate. The sealing gasket 14 ensures the sealing of the ball valve 9. Adjusting the ball valve 9 completes the connection between the ozone pipeline 6 and the delivery pipeline 10. Then, the ozone generator 7, the booster pump 8, and the motor 26 are turned on in sequence to start ozone sterilization. At this time, the motor 26 will drive the second gear 24 to start rotating, which in turn drives the first gear 23 and the third gear 25 to start rotating. The lower gear 21, which is fixedly connected to the first gear 23, and the upper gear 22, which is fixedly connected to the third gear 25, will alternately mesh with the serrated plate 20, thereby driving the serrated plate 20 to move up and down reciprocatingly. The nozzle 19, fixed at the top of the serrated plate 20, will uniformly disinfect the four layers of culture medium drawers 3 in the reciprocating motion. Alternatively, the motor 26 can be turned off, so that the nozzle 19 is fixed in front of a certain layer of culture medium drawer 3 for single disinfection, which can improve the disinfection efficiency and reduce energy costs. After ozone disinfection is completed, the ozone generator 7 is turned off and the steam generator 5 is turned on. Personnel can adjust the connection between the delivery pipe 10 and the steam pipe 4 by turning the switching valve 2. When the high-temperature steam passes through the delivery pipe 10, rigid pipe 15 and telescopic pipe 17, it can accelerate the decomposition of residual ozone in the pipeline, carry out the residual gas, and then start high-temperature steam disinfection. The culture medium on the culture medium drawer 3 can complete the disinfection task after ozone disinfection and high-temperature steam disinfection.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A sterilizing cabinet for uniformly sterilizing culture media, comprising a cabinet body (1), characterized in that: A switching valve (2) is rotatably connected to the outer surface of the cabinet (1). A culture medium drawer (3) is slidably connected inside the cabinet (1). A steam generator (5) and an ozone generator (7) are fixedly connected inside the cabinet (1). A steam pipe (4) and a delivery pipe (10) are fixedly connected to the top of the steam generator (5). An ozone pipe (6) is fixedly connected to the top of the ozone generator (7). A rigid pipe (15) is fixedly connected to one end of the delivery pipe (10). The rigid pipe (15) is far from... A telescopic pipe (17) is fixedly connected to one end of the conveying pipe (10). A nozzle (19) is fixedly connected to the end of the telescopic pipe (17) away from the rigid pipe (15). A serrated plate (20) is fixedly connected to the bottom surface of the nozzle (19). A first gear (23), a second gear (24), and a third gear (25) are rotatably connected inside the cabinet (1). A lower gear (21) is fixedly connected to the surface of the first gear (23), and an upper gear (22) is fixedly connected to the surface of the third gear (25).

2. The culture medium sterilizer according to claim 1, characterized in that: A sealing gasket (14) is fixedly connected inside the steam pipeline (4) and the ozone pipeline (6). A ball valve (9) is rotatably connected inside the steam pipeline (4) and the ozone pipeline (6). A drive shaft (13) is fixedly connected to the top of the ball valve (9). A bevel gear driven wheel (12) is fixedly connected to the end of the drive shaft (13) away from the ball valve (9). A bevel gear driving wheel (11) meshes with the surface of the bevel gear driven wheel (12). The surface of the bevel gear driving wheel (11) is fixedly connected to one end of the switching valve (2).

3. The culture medium sterilizer according to claim 1, characterized in that: A booster pump (8) is fixedly connected to the top of the ozone generator (7). The input end of the booster pump (8) is connected to one end of the steam pipeline (4) or the ozone pipeline (6), and the output end of the booster pump (8) is connected to one end of the delivery pipe (10).

4. The culture medium sterilizer according to claim 1, characterized in that: The lower gear (21), upper gear (22) and sawtooth plate (20) are on the same horizontal plane, and the lower gear (21) and upper gear (22) alternately mesh on the surface of the sawtooth plate (20).

5. The culture medium sterilizer according to claim 1, characterized in that: A motor (26) is fixedly connected to the outer surface of the cabinet (1), and the second gear (24) is fixedly connected to the output end of the motor (26).

6. The culture medium sterilizer according to claim 1, characterized in that: The bottom surface of the nozzle (19) is fixedly connected to a positioning tube (18), which is slidably connected to the surface of the rigid tube (15).

7. The culture medium sterilizer according to claim 6, characterized in that: The positioning tube (18) has a groove (27) inside, and a slide bar (16) is fixedly connected to the surface of the rigid tube (15).

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