An inoculator installed in a biological safety cabinet

Abstract

The utility model discloses an inoculator installed in biological safety cabinet relates to inoculator technical field. This inoculator installed in biological safety cabinet, including inoculator body and biological safety cabinet, the inner chamber fixed connection of biological safety cabinet has the locating seat and the guide seat, and the recess fixed connection of inoculator base edge has the guide block, and the outer surface of inoculator base is seted up with the locating hole, and the inside of inoculator base is provided with the cylinder, and the bottom of cylinder is provided with the connecting plate, and the lower surface fixed connection of connecting plate has the sucking disc, and the lower surface of inoculator base is provided with vacuum pump and guide pulley, and the outer surface of vacuum pump is provided with the pipe, and the outer surface fixed connection of pipe has the hose, and the inside of locating seat is provided with the plug -in stick, and the top fixed connection of plug -in stick has the top plate, the utility model discloses can make inoculator be installed in biological safety cabinet fast, and can realize the steady fixing of inoculator in biological safety cabinet.

Description

Technical Field

[0001] This utility model relates to the field of inoculation instrument technology, specifically an inoculation instrument that is installed in a biosafety cabinet. Background Technology

[0002] Microbial sample inoculation is a crucial and rapid step in microbial testing. Effective and standardized sample inoculation is essential for reliable, efficient, and rapid diagnostic results. A microbial inoculation system is an instrument used in microbial experiments, primarily for uniformly spreading bacterial suspensions onto the surface of culture media to facilitate microbial culture and counting. Designed based on the Archimedes' spiral principle, it automatically inoculates samples at a decreasing rate, achieving standardized generation of numerous single colonies, facilitating subsequent colony counting, isolation, and purification experiments.

[0003] Existing inoculation instruments are bulky, which takes up a lot of space in the microbiology room. Microorganisms are also easily contaminated when inoculating in the microbiology room. Therefore, it is necessary to install the inoculation instrument in a biosafety cabinet. However, the traditional installation method usually requires the use of multiple bolts, which is time-consuming and cumbersome. In addition, the bolt installation method is not convenient for periodically removing the inoculation instrument from the biosafety cabinet for cleaning and disinfection, which is not very practical. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an inoculation device that can be installed in a biosafety cabinet, thereby solving the problem mentioned in the background that existing inoculation devices are inconvenient to install in biosafety cabinets.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an inoculation device installed in a biosafety cabinet, comprising an inoculation device body and a biosafety cabinet. A positioning seat and a guide seat are fixedly connected to the inner cavity of the biosafety cabinet. The inoculation device body includes an inoculation device base. A guide block is fixedly connected to a groove at the edge of the inoculation device base. A positioning hole is provided on the outer surface of the inoculation device base. A cylinder is installed inside the inoculation device base. A connecting plate is provided at the bottom end of the cylinder. A suction cup is fixedly connected to the lower surface of the connecting plate. A vacuum pump and a guide wheel are provided on the lower surface of the inoculation device base. A conduit is provided on the outer surface of the vacuum pump. A flexible tube is fixedly connected to the outer surface of the conduit. A rod is sleeved inside the positioning seat. A top plate is fixedly connected to the top end of the rod. A fixing frame is fixedly connected to the upper surface of the positioning seat. An elastic plate is provided above the top plate.

[0006] Preferably, both the positioning seat and the guide seat are provided in two sets. The outer surface of the guide wheel is adapted to the interior of the guide seat. The interior of the positioning seat is provided with a guide groove, and the interior of the guide groove is adapted to the edge of the inoculation instrument base.

[0007] Preferably, the bottom end of the insertion rod extends into the inner cavity of the guide groove, and the top surface of the top plate and the top of the inner surface of the fixing frame are both fixedly connected to the connecting parts, and the two ends of the elastic plate are rotatably connected to the connecting parts.

[0008] Preferably, the elastic plate is arranged symmetrically about the central axis of the top plate, and the bottom end of the insertion rod is adapted to the interior of the positioning hole.

[0009] Preferably, the outer surface of the cylinder penetrates the through hole at the bottom of the inoculation instrument base, the connecting plate is located directly below the inoculation instrument base, the suction cups are arranged linearly along the lower surface of the connecting plate, and the end of the flexible tube is connected to the suction cups.

[0010] Preferably, the upper surface of the inoculation instrument base is provided with a feeding tray, a marking area, an identification probe, a guide rail device, a transmission device, a disposable inoculation loop box, and a discharge tray. A trash can is provided through the through hole on the upper surface of the inoculation instrument base. Two sets of transmission devices are provided, and the outer surfaces of the two sets of transmission devices are respectively provided with a first robotic arm and a second robotic arm. Beneficial effects

[0011] This invention provides an inoculation device for installation in a biosafety cabinet. It has the following beneficial effects:

[0012] 1. The inoculation instrument installed in the biosafety cabinet can achieve rapid positioning and initial fixation of the inoculation instrument base in the biosafety cabinet through the guide seat and guide wheel positioning system and the dual positioning mechanism of the insertion rod and elastic plate. The design of the elastic plate can effectively disperse stress and enhance vibration resistance, while avoiding the wear problem of traditional bolt installation.

[0013] 2. The inoculation device installed in the biosafety cabinet uses a suction cup adsorption system, combined with the synergistic action of a vacuum pump and cylinder, to further ensure the stable installation of the inoculation device base and guarantee the safety of the inoculation device when it is working inside the biosafety cabinet. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the biosafety cabinet and the inoculation instrument body after assembly.

[0015] Figure 2 This is a structural diagram of the biosafety cabinet and inoculation instrument body of this utility model when disassembled;

[0016] Figure 3 This is a schematic diagram of the structure of the inoculation instrument base of this utility model;

[0017] Figure 4 This is a schematic diagram of the positioning seat of this utility model.

[0018] In the diagram: 1. Inoculation instrument body; 2. Biosafety cabinet; 3. Positioning seat; 4. Guide seat; 5. Inoculation instrument base; 6. Feed tray; 7. Marking area; 8. Identification probe; 9. Guide rail device; 10. Transmission device; 11. First robotic arm; 12. Second robotic arm; 13. Disposable inoculation loop box; 14. Discharge tray; 15. Trash can; 16. Guide block; 17. Positioning hole; 18. Cylinder; 19. Guide wheel; 20. Vacuum pump; 21. Tube; 22. Hose; 23. Connecting plate; 24. Suction cup; 25. Guide groove; 26. Insert rod; 27. Top plate; 28. Fixing frame; 29. ​​Connector; 30. Elastic plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figure 1-4 As shown, this utility model provides an inoculation device installed in a biosafety cabinet, including an inoculation device body 1 and a biosafety cabinet 2. The inner cavity of the biosafety cabinet 2 is fixedly connected to a positioning seat 3 and a guide seat 4. The inoculation device body 1 includes an inoculation device base 5. A guide block 16 is fixedly connected to a groove at the edge of the inoculation device base 5. A positioning hole 17 is opened on the outer surface of the inoculation device base 5. A cylinder 18 is provided inside the inoculation device base 5. A connecting plate 23 is provided at the bottom end of the cylinder 18. A suction cup 24 is fixedly connected to the lower surface of the connecting plate 23. A vacuum pump 20 and a guide wheel 19 are provided on the lower surface of the inoculation device base 5. A conduit 21 is provided on the outer surface of the vacuum pump 20. A flexible tube 22 is fixedly connected to the outer surface of the conduit 21. An insertion rod 26 is sleeved inside the positioning seat 3. A top plate 27 is fixedly connected to the top end of the insertion rod 26. A fixing frame 28 is fixedly connected to the upper surface of the positioning seat 3. An elastic plate 30 is provided above the top plate 27.

[0021] Specifically, there are two sets of positioning seats 3 and guide seats 4. The outer surface of the guide wheel 19 is adapted to the inside of the guide seat 4. The inside of the positioning seat 3 is provided with a guide groove 25. The inside of the guide groove 25 is adapted to the edge of the inoculation instrument base 5. The two sets of positioning seats 3 and guide seats 4 are symmetrically distributed on both sides of the inner cavity of the biosafety cabinet 2 to form a bidirectional positioning reference, ensuring that the inoculation instrument base 5 slides in along a straight trajectory.

[0022] Specifically, the bottom end of the insertion rod 26 extends into the inner cavity of the guide groove 25. The top surface of the top plate 27 and the top of the inner surface of the fixing frame 28 are both fixedly connected to the connector 29. The two ends of the elastic plate 30 are rotatably connected to the connector 29. The connector 29 hinges the top plate 27 to the fixing frame 28, allowing the elastic plate 30 to undergo controllable deformation when the insertion rod 26 is inserted. At the same time, the rotatable connection method disperses stress and prevents mechanical fatigue caused by rigid connection.

[0023] Specifically, the elastic plate 30 is symmetrically arranged with the central axis of the top plate 27 as the axis, and the bottom end of the insertion rod 26 is adapted to the interior of the positioning hole 17. The symmetrical layout of the elastic plate 30 enables the insertion rod 26 to bear a uniform locking force, avoiding deformation or loosening caused by stress concentration on one side.

[0024] Specifically, the outer surface of the cylinder 18 penetrates the through hole at the bottom of the inoculation instrument base 5, the connecting plate 23 is located directly below the inoculation instrument base 5, the suction cup 24 is arranged linearly along the lower surface of the connecting plate 23, the end of the hose 22 is connected to the suction cup 24, and the vertical thrust of the cylinder 18 drives the connecting plate 23 to press down, so that the suction cup 24 fits tightly against the table surface of the biosafety cabinet 2.

[0025] Specifically, the upper surface of the inoculation instrument base 5 is equipped with a feeding tray 6, a marking area 7, an identification probe 8, a guide rail device 9, a transmission device 10, a disposable inoculation loop box 13, and a discharge tray 14. A trash can 15 is installed through a hole on the upper surface of the inoculation instrument base 5. Two sets of transmission devices 10 are provided, with a first robotic arm 11 and a second robotic arm 12 respectively installed on the outer surface of each set. The operation process of the inoculation instrument is as follows: after receiving the sample, the inspector opens the sample cap, adheres the sample to the culture medium marking, and inoculates it into the first area of ​​the culture medium according to the standard. After the inspector puts the culture medium into the machine, without manual operation, the feed tray 6 pushes the culture medium to the streaking area 7. The system controls the first robotic arm 11 to open the culture medium cover. After the identification probe 8 identifies the location of the culture medium marking, the second robotic arm 12 grabs the disposable inoculation loop in the disposable inoculation loop box 13 and streaks the culture medium in different areas using the microbial plate streak method. After streaking, the second robotic arm 12 throws the disposable inoculation loop into the trash can 15. The first robotic arm 11 closes the culture medium cover and uses the guide rail device 9 to push the culture medium into the discharge tray 14.

[0026] When the operator needs to install the inoculation instrument body 1 into the biosafety cabinet 2, firstly, the guide wheel 19 at the bottom of the inoculation instrument base 5 is moved along the guide seat 4 inside the biosafety cabinet 2. At the same time, the side of the guide block 16 on the inoculation instrument base 5 is inserted into the guide groove 25 of the positioning seat 3. When the guide block 16 passes the insertion rod 26, the insertion rod 26 moves upward under the pushing of the inclined surface at the top of the guide block 16. The elastic plate 30 deforms and stores force. When the inner guide wheel 19 moves to the innermost side of the guide seat 4, the inoculation instrument base 5 is completely inserted into the guide groove 25, and the positioning hole 17 on the inoculation instrument base 5... The device moves to the position below the insertion rod 26. Under the elastic force of the elastic plate 30, the insertion rod 26 resets and inserts into the positioning hole 17, thus initially fixing the inoculation instrument base 5. After mechanical positioning is completed, the cylinder 18 is activated, and the connecting plate 23 moves downward under the thrust of the cylinder 18, so that the suction cup 24 fits tightly against the inner surface of the biosafety cabinet 2. The vacuum pump 20 then works, drawing air from the inside of the suction cup 24 through the conduit 21 and the hose 22 to form a negative pressure and generate suction force, further fixing the inoculation instrument body 1 and enabling the inoculation instrument body 1 to be quickly installed in the biosafety cabinet 2.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An inoculation device installed in a biosafety cabinet, comprising an inoculation device body (1) and a biosafety cabinet (2), characterized in that: The inner cavity of the biosafety cabinet (2) is fixedly connected with a positioning seat (3) and a guide seat (4). The inoculation instrument body (1) includes an inoculation instrument base (5). A guide block (16) is fixedly connected to the groove at the edge of the inoculation instrument base (5). A positioning hole (17) is opened on the outer surface of the inoculation instrument base (5). A cylinder (18) is installed inside the inoculation instrument base (5). A connecting plate (23) is installed at the bottom end of the cylinder (18). A suction cup is fixedly connected to the lower surface of the connecting plate (23). 24) A vacuum pump (20) and a guide wheel (19) are provided on the lower surface of the inoculation instrument base (5). A conduit (21) is provided on the outer surface of the vacuum pump (20). A hose (22) is fixedly connected to the outer surface of the conduit (21). An insert rod (26) is sleeved inside the positioning seat (3). A top plate (27) is fixedly connected to the top of the insert rod (26). A fixing frame (28) is fixedly connected to the upper surface of the positioning seat (3). An elastic plate (30) is provided above the top plate (27).

2. An inoculation device installed in a biosafety cabinet according to claim 1, characterized in that: The positioning seat (3) and the guide seat (4) are each provided with two sets. The outer surface of the guide wheel (19) is adapted to the interior of the guide seat (4). The positioning seat (3) is provided with a guide groove (25). The interior of the guide groove (25) is adapted to the edge of the inoculation instrument base (5).

3. An inoculation device installed in a biosafety cabinet according to claim 2, characterized in that: The bottom end of the insertion rod (26) extends into the inner cavity of the guide groove (25). The top surface of the top plate (27) and the top of the inner surface of the fixing frame (28) are both fixedly connected to the connector (29). The two ends of the elastic plate (30) are rotatably connected to the connector (29).

4. An inoculation device installed in a biosafety cabinet according to claim 1, characterized in that: The elastic plate (30) is symmetrically arranged about the central axis of the top plate (27), and the bottom end of the insertion rod (26) is adapted to the interior of the positioning hole (17).

5. An inoculation device installed in a biosafety cabinet according to claim 1, characterized in that: The outer surface of the cylinder (18) penetrates the through hole at the bottom of the inoculation instrument base (5). The connecting plate (23) is located directly below the inoculation instrument base (5). The suction cup (24) is arranged linearly along the lower surface of the connecting plate (23). The end of the hose (22) is connected to the suction cup (24).

6. An inoculation device installed in a biosafety cabinet according to claim 1, characterized in that: The upper surface of the inoculation instrument base (5) is provided with a feeding tray (6), a marking area (7), an identification probe (8), a guide rail device (9), a transmission device (10), a disposable inoculation ring box (13), and a discharge tray (14). A trash can (15) is provided through the upper surface of the inoculation instrument base (5). Two sets of transmission devices (10) are provided, and the outer surfaces of the two sets of transmission devices (10) are respectively provided with a first robotic arm (11) and a second robotic arm (12).

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