Laboratory safety cabinet sterilization device

Abstract

The utility model relates to the technical field of laboratory safety cabinets, in particular to a laboratory safety cabinet sterilization device which comprises a sterilization chamber fixedly arranged in a safety cabinet and provided with an advanced opening, the rear side of the cross section of the sterilization chamber is of a semi-annular structure, and the two sides of the semi-annular structure extend forwards; a driving motor is fixedly arranged on the inner wall of the top face of the sterilization chamber, a disc is arranged in the sterilization chamber, buckles for transversely clamping test tubes are fixedly arranged on the top face of the disc in the circumferential direction, a plurality of ultraviolet lamps facing test tube openings are evenly arranged on the semicircular face of the sterilization chamber in the circumferential direction, and a rotating shaft of the driving motor is perpendicularly connected with the circle center of the top face of the disc. The test tubes can be transversely placed and can be driven by the disc to rotate, so that ultraviolet rays enter the test tubes through tube openings of the test tubes, the ultraviolet sterilization range is wider, and sterilization is better achieved due to the fact that the test tubes do not cross the walls of the test tubes and ultraviolet ray recession is little.

Description

Technical Field

[0001] This utility model belongs to the field of laboratory safety cabinet technology, specifically a laboratory safety cabinet sterilization device. Background Technology

[0002] Test tubes are frequently used in laboratory experiments. After use, test tubes need to be cleaned and then sterilized with ultraviolet light.

[0003] The existing ultraviolet sterilization method involves placing ultraviolet light in an ultraviolet cabinet for sterilization. This method has two drawbacks: first, the ultraviolet light is fixed, so the sterilization location is relatively fixed and cannot achieve sterilization from all directions; second, when ultraviolet light is used to sterilize the inside of the test tube, the higher the ultraviolet light is, the more the ultraviolet light will be filtered out by the test tube wall, resulting in an unsatisfactory sterilization effect. Utility Model Content

[0004] This invention provides a laboratory safety cabinet sterilization device to address the deficiencies in the prior art.

[0005] This utility model is achieved through the following technical solution:

[0006] A laboratory safety cabinet sterilization device includes a sterilization chamber fixedly installed inside the safety cabinet with its opening facing forward. The rear side of the cross-section of the sterilization chamber has a semi-circular structure, and both sides of the semi-circular structure extend forward. A drive motor is fixedly installed on the inner wall of the top surface of the sterilization chamber. A disc is installed inside the sterilization chamber, and a buckle for horizontally holding test tubes is fixedly installed on the top surface of the disc along its circumference. Several ultraviolet lamps facing the test tube openings are evenly arranged on the semi-circular surface of the sterilization chamber along its circumference. The rotating shaft of the drive motor is perpendicularly connected to the center of the top surface of the disc.

[0007] In use, the test tube is horizontally secured to the buckle with its opening facing outwards and its inner end aligned with the vertical axis of the disc. The drive motor is then activated, and its shaft actively rotates the disc, causing the test tube to rotate slowly. Because of this slow rotation, the centrifugal force is small, preventing the test tube from being thrown out. As the test tube rotates, it sequentially passes the ultraviolet lamp, first directly and then diagonally, allowing ultraviolet light to enter through the tube opening. This not only broadens the ultraviolet sterilization range but also minimizes ultraviolet light attenuation due to the lack of passage through the tube wall, resulting in better sterilization.

[0008] Preferably, the latches include inner and outer latches, both of which are elastic blocks fixedly mounted on the disc, each elastic block having a circular through-groove. The circular through-groove has an upward-facing slit through which the elastic block passes. The inner and outer latches are distributed along the circumference of their respective discs. The inner and outer latches provide better support for the test tube, with the test tube held in the circular through-groove, while the slit allows the upper part of the elastic block to be easily pried open and inserted into the test tube.

[0009] Preferably, both the circular groove on the inner buckle and the circular groove on the outer buckle are inclined grooves that slope upwards from the outside to the inside, and the center lines of the circular grooves on the inner buckle and the outer buckle are on the same straight line. This ensures that the test tube is placed at an upward tilt from the outside to the inside, thus facilitating the falling of residual water in the test tube under the action of gravity.

[0010] Preferably, the sterilization chamber has a pipe arranged along its semi-circular structure. One end of the pipe is closed, and the other end is connected to an air pump. The pipe is located below the ultraviolet lamps and connects upwards to a vertical pipe, which is also closed at the top. A nozzle is installed on the vertical pipe, positioned between two adjacent ultraviolet lamps and facing the rotation trajectory line of the test tube opening. Gas enters the pipe via the air pump, then flows through the pipe into the vertical pipe, and finally exits through the nozzle, thus spraying the gas from the test tube and preventing moisture from entering.

[0011] Preferably, a water receiving tray is fixedly installed in the sterilization chamber, located below the disc. The water receiving tray has a hollow internal structure and several water-receiving grooves on its top surface, which are located directly below the rotation trajectory line of the test tube end. The water receiving tray is connected to a water outlet pipe controlled by a valve. The water receiving tray can catch water falling from the test tube, which then flows into the water receiving tray through the water-receiving grooves and out through the water outlet pipe.

[0012] The beneficial effects of this utility model are as follows: the test tube can be placed horizontally and rotated under the drive of the disc, so that ultraviolet light can enter through the mouth of the test tube. This not only achieves a wider range of ultraviolet sterilization, but also reduces the decay of ultraviolet light because it does not cross the test tube wall, thus achieving better sterilization. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2This is a schematic diagram showing the distribution of test tubes on a disk.

[0016] As shown in the figure:

[0017] 1. Sterilization chamber; 2. Drive motor; 3. Disc; 4. Inner clip; 5. Outer clip; 6. Test tube; 7. Ultraviolet lamp; 8. Pipe; 9. Spray head; 10. Water tray; 11. Water trough. Detailed Implementation

[0018] 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 embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] A laboratory safety cabinet sterilization device, such as Figure 1 and Figure 2 As shown. It includes a sterilization chamber 1 fixedly installed inside the biosafety cabinet with its opening facing forward. The rear side of the cross-section of the sterilization chamber 1 is a semi-circular structure, and both sides of the semi-circular structure extend forward. A drive motor 2 is fixedly installed on the inner wall of the top surface of the sterilization chamber 1. A disc 3 is installed inside the sterilization chamber 1. The top surface of the disc 3 is fixedly equipped with buckles that laterally hold test tubes 6 along its circumference. Several ultraviolet lamps 7 are evenly arranged on the semi-circular surface of the sterilization chamber 1, facing the opening of the test tubes 6. The rotating shaft of the drive motor 2 is perpendicularly connected to the center of the top surface of the disc 3.

[0020] In use, the test tube 6 is horizontally secured to the buckle with its opening facing outwards and its inner end aligned with the vertical axis of the disc 3. Then, the drive motor 2 is started, and the drive motor 2's rotating shaft actively drives the disc 3 to rotate, thus achieving a slow rotation of the test tube 6. Because of the slow rotation, the centrifugal force is small, preventing the test tube 6 from being thrown out. As the test tube 6 rotates, it will sequentially pass directly and obliquely past the ultraviolet lamp 7, allowing ultraviolet light to enter through the opening of the test tube 6. This not only achieves a wider ultraviolet sterilization range but also minimizes ultraviolet light attenuation because it does not pass through the wall of the test tube 6, resulting in better sterilization.

[0021] The latches include an inner latch 4 and an outer latch 5. Both the inner latch 4 and the outer latch 5 are elastic blocks fixedly mounted on the disc 3, and each elastic block has a circular through-hole. The circular through-hole has an upward-facing slit through which the elastic block passes. The inner latch 4 and the outer latch 5 are distributed along the circumference of their respective discs 3. The circular through-holes on both the inner latch 4 and the outer latch 5 are inclined grooves sloping upwards from the outside in, and their centerlines are on the same straight line.

[0022] The inner clip 4 and the outer clip 5 provide better support for the test tube 6, which is secured in the circular groove. The slit allows the upper part of the elastic block to be pried open and inserted into the test tube 6. The tilt of the circular groove ensures that the test tube 6 is placed tilted upwards from the outside in, thus facilitating the falling of any residual water in the test tube 6 under the influence of gravity.

[0023] The sterilization chamber 1 has a pipe 8 arranged along its semi-circular structure. One end of the pipe 8 is closed, and the other end is connected to an air pump. The pipe 8 is located below the ultraviolet lamp 7 and is connected upwards to a vertical pipe that is closed at the top. A nozzle 9 is installed on the vertical pipe, which is located between two adjacent ultraviolet lamps 7 and faces the rotation trajectory line of the test tube 6. Gas enters the pipe 8 through the air pump, enters the vertical pipe through the pipe 8, and then enters the nozzle 9 through the vertical pipe and is sprayed out, thereby spraying the test tube 6 and preventing the test tube 6 from containing moisture.

[0024] A water receiving tray 10 is fixedly installed inside the sterilization chamber 1. The water receiving tray 10 is located below the disc 3. The water receiving tray 10 has an internal hollow structure and several water receiving grooves 11 are opened on the top surface of the water receiving tray 10. The water receiving grooves 11 are located directly below the rotation trajectory line of the end of the test tube 6. The water receiving tray 10 is connected to a water outlet pipe controlled by a valve. The water receiving tray 10 can catch the water falling from the test tube 6, which enters the interior of the water receiving tray 10 through the water receiving grooves 11 and flows out from the water outlet pipe.

[0025] The present application allows the test tube 6 to be placed horizontally, and the test tube 6 can rotate under the drive of the disc 3, so that ultraviolet light enters through the opening of the test tube 6. This not only achieves a wider range of ultraviolet sterilization, but also reduces the attenuation of ultraviolet light because it does not pass through the wall of the test tube 6, thus achieving better sterilization.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A laboratory safety cabinet sterilization device, characterized in that: The device includes a sterilization chamber fixedly installed inside a biosafety cabinet with its opening facing forward. The rear side of the cross-section of the sterilization chamber has a semi-circular structure, and both sides of the semi-circular structure extend forward. A drive motor is fixedly installed on the inner wall of the top surface of the sterilization chamber. A disc is installed inside the sterilization chamber, and a buckle is fixedly installed on the top surface of the disc along its circumference to horizontally hold the test tubes. Several ultraviolet lamps facing the test tube openings are evenly arranged on the semi-circular surface of the sterilization chamber along its circumference. The shaft of the drive motor is perpendicularly connected to the center of the top surface of the disc.

2. The laboratory safety cabinet sterilization device according to claim 1, characterized in that: The buckle includes an inner buckle and an outer buckle. Both the inner buckle and the outer buckle are elastic blocks fixedly mounted on the disc, and the elastic blocks have circular through slots. The circular through slots have slits that extend through the elastic blocks. The inner buckle and the outer buckle are distributed along the circumference of the corresponding discs.

3. The laboratory safety cabinet sterilization device according to claim 2, characterized in that: Both the circular through-groove on the inner buckle and the circular through-groove on the outer buckle are inclined grooves that slope upwards from the outside to the inside, and the center lines of the circular through-groove on the inner buckle and the circular through-groove on the outer buckle are the same straight line.

4. The laboratory safety cabinet sterilization device according to claim 3, characterized in that: The sterilization chamber has pipes along its semi-circular structure. One end of the pipes is closed, and the other end is connected to an air pump. The pipes are located below the ultraviolet lamps and are connected upwards to a vertical pipe that is closed at the top. The vertical pipe is equipped with a nozzle, which is located between two adjacent ultraviolet lamps and faces the rotation trajectory line of the test tube opening.

5. The laboratory safety cabinet sterilization device according to claim 4, characterized in that: A water collection tray is fixedly installed in the sterilization chamber. The water collection tray is located below the disc. The water collection tray has an internal hollow structure and several water collection grooves are opened on the top surface of the water collection tray. The water collection grooves are located directly below the rotation trajectory line of the test tube end. The water collection tray is connected to a water outlet pipe controlled by a valve.

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