Porous automatic sterilization inoculating loop device

By designing a porous automatic sterilization inoculation loop device, rapid sterilization is achieved using an electric heater and a sensor, solving the problem of waiting for cooling after flame burning, improving experimental efficiency and reducing secondary pollution.

CN224148043UActive Publication Date: 2026-04-21JIANGXI PROVINCIAL INST OF FOOD INSPECTION & TESTING (JIANGXI NAT FRUIT & VEGETABLE PROD & PROCESSED FOOD QUALITY SUPERVISION & INSPECTION CENT)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI PROVINCIAL INST OF FOOD INSPECTION & TESTING (JIANGXI NAT FRUIT & VEGETABLE PROD & PROCESSED FOOD QUALITY SUPERVISION & INSPECTION CENT)
Filing Date
2025-03-11
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing microbial inoculation loops require cooling after being sterilized by flame after use, which affects the experimental time.

Method used

A multi-hole automatic sterilization inoculation loop device is designed, which uses an electric heater and a temperature sensor for rapid sterilization, and monitors the sterilization status through a dual-color indicator light and a proximity sensor to ensure safe use.

Benefits of technology

It enables rapid sterilization and immediate use, avoiding the need for cooling time, improving experimental efficiency and reducing the risk of secondary contamination.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a porous automatic sterilization inoculating loop device, which relates to the field of microbiological experiment equipment and comprises a device main body, a sealing cover and a double-color indicating lamp are respectively arranged at the top of the device main body, the outer surface and the back of the sealing cover are connected with torsion spring shafts, and a proximity sensor is arranged in the sealing cover. A temperature sensor is installed below the interior of the device body. Through the arrangement of the sealing cover, the torsion spring shaft, the support, the first electric heater and the second electric heater, after the sealing cover is opened upwards, the handle and the inoculating loop penetrate through the support to complete placing operation, then the sealing cover is loosened, and the sealing cover is closed through the torsion spring shaft to form sealing; after the first electric heater and the second electric heater are started, the handle and the inoculating loop are heated for sterilization; and a plurality of inoculating loops can be sterilized and stored, so that other sterilized inoculating loops can be directly used without waiting for the completion of sterilization.
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Description

Technical Field

[0001] This utility model relates to the field of microbial experimental equipment, specifically a porous automatic sterilization inoculation loop device. Background Technology

[0002] Microbial inoculation is a fundamental operation in microbiological research. Commonly used methods include streak plating, spread plate preparation, dilution and pour plate preparation, liquid culture, and puncture inoculation. After inoculation, the inoculation loop can be recycled, disinfected, and reused, thereby reducing resource waste and procurement time and costs.

[0003] After use, existing microbial inoculation loops are usually sterilized by placing them above an alcohol lamp and burning them with a high-temperature flame. However, because the flame burns the loops to a high temperature after sterilization, they need to be allowed to cool down naturally before they can be used. This cooling-down period takes time and affects the experimental time. Summary of the Invention

[0004] Therefore, the purpose of this utility model is to provide a porous automatic sterilization inoculation loop device to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-hole automatic sterilization inoculation loop device, comprising a device body, a sealing cap and a dual-color indicator light respectively provided on the top of the device body, and a torsion spring shaft connected to the outer surface and back of the sealing cap, a proximity sensor installed inside the sealing cap, a temperature sensor installed at the bottom of the device body, a bracket, a first electric heater and a second electric heater respectively provided inside the device body; a support base fixed at the bottom of the device body, and a first gear connected inside the support base, a lead screw and a guide rod respectively connected inside the support base, and a second gear sleeved at the top of the lead screw, an adjustment seat connected between the lead screw and the guide rod, and a suction cup connected to the bottom of the adjustment seat.

[0006] By adopting the above technical solution, the operator places the device on a table. The support base supports the main body of the device. The operator then rotates the first gear via a handwheel, causing the four second gears to rotate. The rotation of the second gears drives the lead screw, causing the adjusting seat to move the suction cup downwards to contact the table. The suction force of the suction cup limits the support base, thus limiting the device and preventing collisions that could cause the inoculation loop to shake and be damaged. When needed, the operator opens the sealing cap upwards using the handle on top of the sealing cap. The operator then places the handle and inoculation loop through the support. The operator then releases the sealing cap, and the torsion spring shaft closes the sealing cap to form a seal. When the sealing cap is closed, a proximity sensor detects... To check if the handle is present, a dual-color indicator light will illuminate red if present, indicating that sterilization is in progress and personnel should not open it. Simultaneously, the first and second electric heaters will start to heat the bottom of the handle and the inoculation loop for sterilization. The temperature of the inoculation loop will be monitored by a temperature sensor to prevent overheating. After sterilization, the first and second electric heaters will be turned off, and the handle and inoculation loop will be allowed to cool down naturally. The temperature sensor will be used to monitor whether the inoculation loop has cooled to room temperature. If the inoculation loop has cooled to room temperature, a dual-color indicator light will illuminate green, indicating that personnel can remove the handle and inoculation loop for use. If the sealing cap is not opened, the handle and inoculation loop can be sealed and stored to avoid secondary contamination.

[0007] Furthermore, the sealing cover is rotatably connected to the main body of the device via a torsion spring shaft.

[0008] By adopting the above technical solution, the staff opens the sealing cap upwards, places the inoculation loop, and then releases the sealing cap, which is then closed by the torsion spring shaft to form a seal.

[0009] Furthermore, the proximity sensor is a capacitive proximity sensor, and the temperature sensor is a non-contact infrared temperature sensor.

[0010] By adopting the above technical solution, both the capacitive proximity sensor and the non-contact infrared temperature sensor are non-contact sensing elements, avoiding collisions between the sensor and the inoculation ring that could cause the inoculation ring to bend or deform.

[0011] Furthermore, a handwheel is connected to the bottom of the first gear.

[0012] By adopting the above technical solution, the first gear inside the support can be rotated by rotating the handwheel, and the handwheel facilitates operation by the staff.

[0013] Furthermore, there are four of each of the lead screw, second gear, guide rod, adjusting seat, and suction cup, and the four lead screws, second gears, guide rods, adjusting seats, and suction cups are arranged in a circular array.

[0014] By adopting the above technical solution, the contact area is increased by increasing the number of structures, which helps to improve the stability of the device after placement and reduce the occurrence of collision displacement.

[0015] Furthermore, the first gear meshes with four second gears.

[0016] By adopting the above technical solution, the worker rotates the first gear to make the four second gears rotate, and the rotation of the second gears drives the lead screw to rotate.

[0017] Furthermore, a handle is placed on the top of the support, and an inoculation loop is connected to the bottom of the handle.

[0018] By adopting the above technical solution, staff can easily and quickly place the handle and inoculation loop through the support.

[0019] Furthermore, a handle is connected to the top of the sealing cap, and the sealing cap is located above the handle.

[0020] By adopting the above technical solution, the staff can open the sealing cover upwards using the handle on top of the sealing cover, and then release the sealing cover and close it using the torsion spring shaft to form a seal.

[0021] In summary, the present invention has the following main advantages:

[0022] 1. This utility model, through the arrangement of a sealing cap, a torsion spring shaft, a bracket, a first electric heater, and a second electric heater, allows for placement of the handle and inoculation loop after opening the sealing cap upwards and passing them through the bracket. The sealing cap is then released, and the torsion spring shaft closes the cap to form a seal. The first and second electric heaters are activated to heat and sterilize the handle and inoculation loop. After sterilization, the first and second electric heaters are turned off, and the loops are allowed to cool naturally before opening the sealing cap for use. If the sealing cap remains closed, the handle and inoculation loop can be sealed and stored to prevent secondary contamination. Multiple inoculation loops can be sterilized and stored simultaneously, eliminating the need to wait for sterilization to complete; other sterilized inoculation loops can be used directly.

[0023] 2. This utility model incorporates a dual-color indicator light, a proximity sensor, and a temperature sensor. When the sealed cover is closed, the proximity sensor detects the presence of the handle. If the handle is present, the dual-color indicator light illuminates red, indicating that sterilization is in progress and personnel should not open it. The temperature sensor monitors the temperature of the inoculation loop to prevent overheating. After sterilization, it also detects whether the inoculation loop has naturally cooled to room temperature. If the inoculation loop has cooled to room temperature, the dual-color indicator light illuminates green, indicating that personnel can remove the handle and inoculation loop for use. This improves convenience and reduces the occurrence of accidental removal.

[0024] 3. This utility model, through the arrangement of a first gear, a lead screw, a second gear, an adjusting seat, and a suction cup, allows the device to be placed on a table and supported by a support base. Rotating the first gear causes the four second gears to rotate, which in turn rotates the lead screw, causing the adjusting seat to move the suction cup downwards to contact the table. The suction force of the suction cup limits the support base, thus limiting the device and preventing collisions that could cause the inoculation ring to wobble and become damaged. When it needs to be removed, simply reverse the first gear and move the adjusting seat and suction cup upwards. This facilitates stable placement and reduces the occurrence of collisions caused by the inoculation ring wobbling. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 For the present utility model Figure 1 Enlarged view of the structure at point A in the image;

[0027] Figure 3 This is a partial cross-sectional structural diagram of the main body of the device of this utility model;

[0028] Figure 4 For the present utility model Figure 3 Enlarged view of the structure at point B in the image;

[0029] Figure 5 This is a schematic diagram of the cross-sectional structure of the support base of this utility model.

[0030] In the diagram: 1. Main body of the device; 2. Sealing cover; 3. Torsion spring shaft; 4. Dual-color indicator light; 5. Proximity sensor; 6. Temperature sensor; 7. Support; 8. First electric heater; 9. Second electric heater; 10. Handle; 11. Inoculation loop; 12. First gear; 13. Lead screw; 14. Second gear; 15. Guide rod; 16. Adjustment seat; 17. Suction cup; 18. Support seat. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0032] The embodiments of this utility model will be described below based on its overall structure. Example 1

[0033] A porous automatic sterilization inoculation loop device, such as Figures 1-4As shown, the device includes a main body 1, characterized in that: a sealing cover 2 and a dual-color indicator light 4 are respectively provided on the top of the main body 1; a handle is connected to the top of the sealing cover 2; the sealing cover 2 is located above the handle 10; a torsion spring shaft 3 is connected to both the outer surface and the back of the sealing cover 2; the sealing cover 2 is rotatably connected to the main body 1 through the torsion spring shaft 3; a proximity sensor 5 is installed inside the sealing cover 2, which is a capacitive proximity sensor; a temperature sensor 6 is installed at the bottom inside the main body 1, which is a non-contact infrared temperature sensor; a bracket 7, a first electric heater 8, and a second electric heater 9 are respectively provided inside the main body 1; multiple sealing covers 2, torsion spring shafts 3, dual-color indicator lights 4, proximity sensors 5, temperature sensors 6, brackets 7, first electric heaters 8, and second electric heaters 9 are provided; when needed, the operator opens the sealing cover 2 upwards through the handle on the top of the sealing cover 2, and then the operator places the handle 10 and the inoculation loop 11 through the bracket 7. During operation, the operator loosens the sealing cap 2, which is then closed by the torsion spring shaft 3 to form a seal. When the sealing cap 2 is closed, the proximity sensor 5 detects the presence of the handle 10. If the handle 10 is present, the dual-color indicator light 4 illuminates red, indicating that sterilization is in progress and the operator should not open it. Simultaneously, the first electric heater 8 and the second electric heater 9 are activated to heat and sterilize the handle 10 and the inoculation loop 11. The temperature sensor 6 monitors the temperature of the inoculation loop 11 to prevent overheating. After sterilization, the first electric heater 8 and the second electric heater 9 are turned off, and the handle 10 and the inoculation loop 11 are allowed to cool naturally. The temperature sensor 6 monitors whether the inoculation loop 11 has cooled to room temperature. If the inoculation loop 11 has cooled to room temperature, the dual-color indicator light 4 illuminates green, indicating that the operator can remove the handle 10 and the inoculation loop 11 for use. If the sealing cap 2 is not opened, the handle 10 and the inoculation loop 11 can be sealed and stored to prevent secondary contamination.

[0034] See Figure 3 and Figure 4 In the above embodiment, a handle 10 is placed on the top of the support 7, and an inoculation ring 11 is connected to the bottom of the handle 10, which can be used for microbial inoculation. Example 2

[0035] Based on the above embodiment one, the following settings are now adopted to facilitate stable placement.

[0036] See Figure 1 and Figure 5In the above embodiment, a support base 18 is fixed to the bottom of the main body 1 of the device. A first gear 12 is connected inside the support base 18, and a handwheel is connected to the bottom of the first gear 12. A lead screw 13 and a guide rod 15 are respectively connected inside the support base 18. A second gear 14 is sleeved on the top of the lead screw 13. The first gear 12 meshes with four second gears 14. An adjusting seat 16 is connected between the lead screw 13 and the guide rod 15. A suction cup 17 is connected to the bottom of the adjusting seat 16. Four lead screws 13, four second gears 14, four guide rods 15, four adjusting seats 16, and four suction cups 17 are provided. 13. The second gear 14, guide rod 15, adjusting seat 16, and suction cup 17 are all arranged in a circular array. When the operator places the device on the table, the main body 1 of the device is supported by the support seat 18. Then, the operator rotates the first gear 12 by handwheel to rotate the four second gears 14. After the second gears 14 rotate, they drive the lead screw 13 to rotate, thereby causing the adjusting seat 16 to move the suction cup 17 down to contact the table. The suction force of the suction cup 17 limits the support seat 18, thereby limiting the device and preventing collision displacement that could cause the inoculation ring 11 to shake and be damaged.

[0037] The implementation principle of this utility model is as follows: First, the staff places the device on the table. At this time, the support seat 18 supports the main body 1 of the device. Then, the staff rotates the first gear 12 by handwheel to rotate the four second gears 14. After the second gears 14 rotate, they drive the lead screw 13 to rotate, thereby causing the adjustment seat 16 to move the suction cup 17 down to contact the table. The suction force of the suction cup 17 limits the support seat 18, thereby limiting the device and avoiding collision displacement that could cause the inoculation ring 11 to shake and be damaged by collision.

[0038] When needed, the operator opens the sealing cap 2 upwards using the handle on top of the sealing cap 2. Then, the operator places the handle 10 and inoculation loop 11 through the support 7. At this point, the operator releases the sealing cap 2, which is then closed by the torsion spring shaft 3 to form a seal. When the sealing cap 2 is closed, the proximity sensor 5 detects the presence of the handle 10. If the handle 10 is present, the dual-color indicator light 4 illuminates red, indicating that sterilization is in progress and the operator should not open it. Simultaneously, the first electric heater 8 and the second electric heater 9 are activated, heating the bottom of the handle 10 and the inoculation loop 11. Heat sterilization is performed, and the temperature of the inoculation loop 11 is detected by the temperature sensor 6 to avoid overheating. After sterilization, the first electric heater 8 and the second electric heater 9 are turned off. Then, the handle 10 and the inoculation loop 11 are cooled down by natural cooling. The temperature sensor 6 detects whether the inoculation loop 11 has cooled down to room temperature. If the inoculation loop 11 has cooled down to room temperature, the dual-color indicator light 4 will light up green, indicating that the staff can take out the handle 10 and the inoculation loop 11 for use. If the sealing cap 2 is not opened, the handle 10 and the inoculation loop 11 can be sealed and stored to avoid secondary contamination.

[0039] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A multi-well automated sterilization loop inoculator device comprising a device body (1), characterized in that: The device body (1) is provided with a sealing cover (2) and a dual-color indicator light (4) on the top. The outer surface and back of the sealing cover (2) are connected to a torsion spring shaft (3). A proximity sensor (5) is installed inside the sealing cover (2). A temperature sensor (6) is installed inside the lower part of the device body (1). A bracket (7), a first electric heater (8), and a second electric heater (9) are provided inside the device body (1). A support base (18) is fixed at the bottom of the device body (1). A first gear (12) is connected inside the support base (18). A lead screw (13) and a guide rod (15) are connected inside the support base (18). A second gear (14) is sleeved on the top of the lead screw (13). An adjustment seat (16) is connected between the lead screw (13) and the guide rod (15). A suction cup (17) is connected to the bottom of the adjustment seat (16).

2. The multiwell automated sterilization inoculation loop apparatus of claim 1, wherein: The sealing cover (2) is rotatably connected to the main body (1) of the device via a torsion spring shaft (3).

3. The multiwell automated sterilization inoculation loop apparatus of claim 1, wherein: The proximity sensor (5) is a capacitive proximity sensor, and the temperature sensor (6) is a non-contact infrared temperature sensor.

4. The multiwell automated sterilization inoculation loop apparatus of claim 1, wherein: A handwheel is connected to the bottom of the first gear (12).

5. The multiwell automated sterilization inoculation loop apparatus of claim 1, wherein: The lead screw (13), second gear (14), guide rod (15), adjustment seat (16) and suction cup (17) are all provided in fours, and the four lead screws (13), second gears (14), guide rods (15), adjustment seats (16) and suction cups (17) are all distributed in a ring array.

6. The multiwell automated sterilization inoculation loop apparatus of claim 5, wherein: The first gear (12) meshes with four second gears (14).

7. The multiwell automated sterilization inoculation loop apparatus of claim 1, wherein: The top of the support (7) is provided with a handle (10), and the bottom of the handle (10) is connected to an inoculation ring (11).

8. The multiwell automated sterilization inoculation loop apparatus of claim 7, wherein: The sealing cap (2) is connected to a handle at the top and is located above the handle (10).