Eight-channel cryopreservation tube uncovering device

By designing an 8-channel frozen storage tube cover opening device, the brushless motor and transmission components are used to achieve efficient and automated cover opening of frozen storage tubes, solving the problem of inefficient and easy to contaminate and damage in the traditional frozen storage tube cover opening method, improving the efficiency and safety of cover opening, and suitable for biomedical research and clinical applications.

CN223254876UActive Publication Date: 2025-08-22THE FIRST AFFILIATED HOSPITAL OF GUANGZHOU MEDICAL UNIV (GUANGZHOU RESPIRATORY CENT) +1
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Patent Information

Application Number
CN202422583270.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-25
Publication Date
2025-08-22
Estimated Expiration
2034-10-25

AI Technical Summary

Technical Problem

The traditional frozen storage tube cover opening method is inefficient and prone to contamination or damage to the samples, especially when dealing with large amounts of samples.

Method used

An 8-channel frozen storage tube cover opening device is designed, using a brushless motor and a transmission assembly combined with a cover removal mechanism. The position of the frozen storage tube is accurately detected by the injection sensor, and the brushless motor provides stable power. The transmission assembly realizes the precise transmission and distribution of torque. The screw motor drives the cover removal plate to achieve accurate control and stable disengagement of the frozen storage tube cover.

Benefits of technology

It improves the efficiency and stability of the opening of the frozen storage tube, reduces the risk of sample contamination and damage caused by human factors, and can handle multiple frozen storage tubes at the same time, improves work efficiency and ensures the accuracy and safety of operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of cryopreservation tube processing equipment, in particular to an eight-channel cryopreservation tube cover opening device which comprises an upper cover opening mechanism, the upper cover opening mechanism comprises a brushless motor and a transmission assembly, a cover removing mechanism is installed at the bottom of the transmission assembly, the cover removing mechanism comprises a lead screw motor, a driving lead screw is installed on an output shaft of the lead screw motor, and the driving lead screw is connected with the brushless motor. A lead screw sliding block is installed on the driving lead screw, lifting rods are installed at the bottoms of the two sides of the lead screw sliding block, and a cover removing plate is installed at the bottoms of the lifting rods. According to the 8-channel cryopreservation tube uncovering device, by integrating the brushless motor, the transmission assembly, the uncovering mechanism and other core components, efficient and automatic uncovering operation of cryopreservation tubes is achieved. According to the device, the cover opening efficiency is remarkably improved, and the sample pollution and damage risks caused by human factors are greatly reduced. The application of the brushless motor ensures the stability and durability of power output, and the precise design of the transmission assembly ensures the accurate transmission and distribution of torque.
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Description

Technical Field

[0001] The utility model relates to the technical field of freezing tube processing equipment, in particular to an 8-channel freezing tube cover opening device. Background Art

[0002] In biomedical research and clinical applications, cryotubes are widely used to store various biological samples, such as cells, blood, and tissues. These samples often require long-term storage at low temperatures to maintain their biological activity and research value. However, opening the cryotube lids is a critical step in the sample storage and retrieval process. Traditional manual opening methods are not only inefficient but also prone to contamination or damage to the samples, a particularly serious problem when processing large numbers of samples.

[0003] In order to improve the efficiency and accuracy of cryotube opening and reduce the impact of human factors on samples, automated opening devices have emerged. In the field of cryotube processing equipment technology, it is particularly important to develop an automated device that can efficiently and stably complete the cryotube opening operation. Utility Model Content

[0004] The purpose of this utility model is to provide an 8-channel cryotube lid opening device to solve the problem raised in the above-mentioned background art that the opening of cryotube lids has become a key step in the sample storage and retrieval process. The traditional manual opening method is not only inefficient, but also easily causes contamination or damage to the samples, which is particularly prominent when processing a large number of samples.

[0005] To achieve the above-mentioned purpose, the utility model provides an 8-channel cryotube opening device, including an upper cover opening mechanism, the upper cover opening mechanism includes a brushless motor and a transmission assembly, a cover removal mechanism is installed at the bottom of the transmission assembly, the transmission assembly includes a main shaft, an upper ratchet is installed at the bottom end of the main shaft, a lower ratchet is provided at the bottom of the upper ratchet, a screwdriver is installed at the bottom of the lower ratchet, and the upper ratchet and the lower ratchet cooperate with each other.

[0006] Preferably, the cover-removing mechanism and the upper cover-opening mechanism are fixed by a mounting base.

[0007] Preferably, a through-beam sensor is installed at the bottom of the mounting base.

[0008] Preferably, the cover removal mechanism includes a screw motor, the output shaft of the screw motor is equipped with a driving screw, the driving screw is equipped with a screw slider, the bottom of both sides of the screw slider are equipped with lifting rods, and the bottom of the lifting rods is equipped with a cover removal plate.

[0009] Preferably, the screw motor is mounted on the mounting seat via a fixing plate.

[0010] Preferably, the lifting rod is connected to the mounting seat via a linear bearing.

[0011] Preferably, a limiting sleeve is provided on the upper portion of the upper ratchet, and the limiting sleeve is in sliding engagement with the main shaft; a guide sleeve is provided on the bottom of the lower ratchet, and the guide sleeve is in sliding engagement with the main shaft.

[0012] Preferably, a driving gear is installed on the upper part of the main shaft, and the driving gears of the main shaft are linked to each other through a reversing gear. The output shaft of the brushless motor is rotatably connected to the top end of one of the main shafts.

[0013] Preferably, the number of the transmission assemblies is eight, and the driving gears of each adjacent transmission assembly rotate via a reversing gear.

[0014] Preferably, the top end of the main shaft is mounted on the housing of the brushless motor through a bearing.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This 8-channel cryotube decapping device integrates core components such as a brushless motor, transmission assembly, and decapping mechanism to achieve efficient, automated decapping of cryotubes. This device not only significantly improves decapping efficiency but also significantly reduces the risk of sample contamination and damage caused by human factors.

[0017] 2. The brushless motor in this 8-channel cryotube decapping device ensures stable and durable power output, while the precision-designed transmission assembly ensures accurate torque transmission and distribution. The decapping mechanism is driven by a screw motor, enabling precise control and stable release of the cryotube caps.

[0018] 3. The 8-channel design of the 8-channel cryotube opening device enables the device to process multiple cryotubes simultaneously, further improving work efficiency. In summary, the 8-channel cryotube opening device of the utility model provides an efficient and reliable sample access solution for biomedical research and clinical applications, with significant technical advantages and practical application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the front structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the top structure of the transmission assembly in the present utility model;

[0022] Figure 4This is a schematic diagram of the structure of the transmission assembly in the present utility model;

[0023] Figure 5 This is a schematic structural diagram of the cover-removing mechanism in the present invention;

[0024] The meaning of each number in the figure is:

[0025] 1. Brushless motor; 11. Reversing gear; 2. Decapping mechanism; 21. Screw motor; 22. Fixing plate; 23. Drive screw; 24. Screw slider; 25. Lifting rod; 26. Linear bearing; 27. Decapping plate; 3. Mounting seat; 4. Through-beam sensor; 5. Transmission assembly; 51. Spindle; 52. Bearing; 53. Drive gear; 54. Limit sleeve; 55. Upper ratchet; 56. Lower ratchet; 57. Guide sleeve; 58. Bit. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] The utility model provides an 8-channel cryopreservation tube cover opening device, such as Figure 1-Figure 5 As shown, it includes an upper cover opening mechanism, which includes a brushless motor 1 and a transmission assembly 5. A cover-removing mechanism 2 is installed at the bottom of the transmission assembly 5. The cover-removing mechanism 2 includes a screw motor 21. The output shaft of the screw motor 21 is installed with a driving screw 23. A screw slider 24 is installed on the driving screw 23. Lifting rods 25 are installed at the bottom of both sides of the screw slider 24. A cover-removing plate 27 is installed at the bottom of the lifting rod 25.

[0028] In this embodiment, the decapping mechanism 2 and the upper cover opening mechanism are fixed by a mounting base 3. The brushless motor 1 in the upper cover opening mechanism serves as a power source, providing a stable and long-lasting power output, ensuring the smooth progress of the decapping operation. The transmission assembly 5 transmits the power of the brushless motor 1 to the decapping mechanism 2, realizing the precise transmission and distribution of torque. The screw motor 21 in the decapping mechanism 2 drives the driving screw 23 to rotate, and then drives the screw slider 24 to slide on the driving screw 23. The sliding of the screw slider 24 is converted into the lifting movement of the decapping plate 27 through the lifting rod 25, thereby realizing precise control and stable separation of the cryopreservation tube cover. This design not only improves the decapping efficiency, but also ensures the stability and accuracy of the decapping process, and effectively avoids sample contamination and damage caused by human factors.

[0029] Specifically, a beam sensor 4 is mounted at the bottom of the mounting base 3. This utility model enables precise detection of the cryotube position. The beam sensor 4 emits and receives a light beam. When the cryotube is placed in the designated position, the light beam is blocked, and the sensor emits a signal, triggering the lid opening operation. This design ensures that the lid opening device only operates on correctly placed cryotubes, improving accuracy and safety.

[0030] Furthermore, the screw motor 21 is mounted on the mounting base 3 via a fixing plate 22. This design ensures the stability and reliability of the screw motor 21 during operation. The fixing plate 22 provides solid support, preventing the motor from shifting due to vibration or external forces, thereby ensuring the smooth rotation of the drive screw 23 and the accurate sliding of the screw slider 24.

[0031] Furthermore, the lifting rod 25 is connected to the mounting base 3 via a linear bearing 26. This design allows the lifting rod 25 to maintain linear motion during the lifting process, reducing deviation and shaking. The linear bearing 26 provides a low-friction, high-precision guide, ensuring the stability and accuracy of the cover removal plate 27 during the lifting process, thereby improving the cover opening effect.

[0032] Furthermore, the transmission assembly 5 includes a main shaft 51, an upper ratchet 55 is mounted at the bottom end of the main shaft 51, a lower ratchet 56 is provided at the bottom of the upper ratchet 55, a screwdriver bit 58 is mounted at the bottom of the lower ratchet 56, and the upper ratchet 55 and the lower ratchet 56 cooperate with each other. The design of the transmission assembly 5 cleverly combines the main shaft 51, the upper ratchet 55, the lower ratchet 56, and the screwdriver bit 58 to achieve torque transmission and conversion. The interaction between the upper ratchet 55 and the lower ratchet 56 enables the screwdriver bit 58 to accurately grasp and rotate the cryotube lid, thereby achieving the lid opening operation. This design ensures the stability and reliability of the lid opening process and improves work efficiency.

[0033] Furthermore, a limit sleeve 54 is provided on the upper portion of the upper ratchet 55, which slides with the main shaft 51. A guide sleeve 57 is provided on the bottom of the lower ratchet 56, which slides with the main shaft 51. This design limits the sliding range of the upper and lower ratchet wheels 55 and 56 on the main shaft 51, preventing them from dislodging due to external forces. At the same time, the limit sleeve 54 and guide sleeve 57 provide smooth guidance, reducing friction and wear, and extending the service life of the transmission assembly.

[0034] Furthermore, a drive gear 53 is mounted on the top of the main shaft 51. The drive gears 53 of the main shaft 51 are interconnected via a reversing gear 11. The output shaft of the brushless motor 1 is rotationally connected to the top of one of the main shafts 51. This design allows the output torque of the brushless motor 1 to be evenly transmitted to each transmission component 5, ensuring their synchronous and coordinated operation. The introduction of the reversing gear 11 also enables reversible torque transmission, allowing the device to adapt to different opening directions.

[0035] Furthermore, there are eight transmission assemblies 5, and the drive gears 53 of each adjacent transmission assembly 5 rotate via a reversing gear 11. This design enables the device to process multiple cryogenic vials simultaneously, greatly improving work efficiency. Furthermore, the introduction of reversing gears 11 ensures close coordination and cooperation between the various transmission assemblies 5, ensuring stability and accuracy during the opening process.

[0036] Furthermore, the top end of the spindle 51 is mounted on the outer housing of the brushless motor 1 via a bearing 52. This design ensures that the spindle 51 remains smooth and stable during rotation. The bearing 52 provides low-friction, high-precision support, reducing vibration and noise during rotation, thereby improving the overall performance and service life of the device.

[0037] When the 8-channel cryotube opening device of the present invention is used, the device is first in an initial state, with all components in a static or reset position. When the cryotube is placed in a designated position, the light beam emitted by the beam sensor 4 is blocked, and the sensor immediately sends a signal to trigger the opening operation.

[0038] The brushless motor 1, serving as the power source, begins operating upon receiving a signal from the sensor, delivering stable and sustained power. The motor's output torque is transmitted via the main shaft 51 and its drive gear 53 to the reversing gear 11, thereby achieving linkage between the multiple transmission components 5. The reversing gear 11 not only transmits torque but also reverses it, enabling the device to adapt to opening the lid in different directions.

[0039] The bottom end of the transmission assembly 5 is equipped with a decapping mechanism 2. When torque is transmitted to the decapping mechanism 2, the screw motor 21 begins to operate. The screw motor 21 rotates the drive screw 23, which in turn causes the screw slider 24 on the drive screw 23 to slide on the screw. The sliding motion of the screw slider 24 is converted by the lifting rod 25 into the lifting motion of the decapping plate 27, which gradually approaches and contacts the cryotube cap.

[0040] Driven by the lifting rod 25, the decapping plate 27 stably grasps the cryotube lid and lifts it upward to complete the decapping operation. During the decapping process, the upper ratchet 55 and the lower ratchet 56 cooperate with each other to ensure that the screwdriver 58 can accurately grasp and rotate the cryotube lid. The limit sleeve 54 and the guide sleeve 57 limit the sliding range of the upper ratchet 55 and the lower ratchet 56 on the main shaft 51, ensuring the stability and reliability of the decapping process. When the cryotube lid is fully opened, the decapping plate 27, driven by the lifting rod 25, returns to its initial position, awaiting the next decapping operation.

[0041] Because there are eight transmission assemblies 5, and each adjacent transmission assemblies 5 is rotationally connected via a reversing gear 11, the device can process multiple cryopreservation tubes simultaneously. When multiple channels are operated simultaneously, the transmission assemblies 5 work closely together and in coordination, ensuring the stability and accuracy of the opening process.

[0042] This utility model can automatically detect the position of the cryotube and quickly initiate the lid opening operation after receiving the signal, greatly improving work efficiency and reducing the burden of manual operation. Through the precise coordination of the brushless motor, transmission components and lid removal mechanism, the cryotube lid is accurately controlled and stably disengaged, ensuring the stability and accuracy of the lid opening process. The device is designed with eight transmission components, which can handle multiple cryotubes simultaneously, further improving work efficiency and ensuring close coordination and cooperation between the various components when multiple channels are operated simultaneously.

[0043] The use of a through-beam sensor ensures that the device only operates on correctly placed cryotubes, avoiding the risks of misoperation and improving operational safety and accuracy. Each component of the device has been meticulously designed. For example, the lead screw motor is mounted on the mounting base via a fixed plate, ensuring stability and reliability during operation. The lifting rod is connected to the mounting base via a linear bearing, ensuring stability and accuracy during the lifting and lowering of the cover plate.

[0044] The design of the limit sleeve and guide sleeve limits the sliding range of the upper and lower ratchets on the main shaft, preventing dislocation and providing smooth guidance, reducing friction and wear, thereby extending the service life of the transmission components. The device can adapt to the needs of opening the lid in different directions. The introduction of a reversing gear achieves reversing torque transmission, enhancing the adaptability and flexibility of the device.

[0045] Finally, it should be noted that the brushless motor 1 and the like in this embodiment, and the electronic components in the above-mentioned parts are all universal standard parts or parts known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or through conventional experimental methods. In the idle area of ​​this device, all the above-mentioned electrical components are connected separately through wires, and the specific connection means should refer to the working sequence between the electrical components in the above-mentioned working principle to complete the electrical connection, which are all well-known technologies in the art.

[0046] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An 8-channel cryotube opening device, comprising an upper cover opening mechanism, characterized in that: The upper cover opening mechanism comprises a brushless motor (1) and a transmission assembly (5); a cover removing mechanism (2) is installed at the bottom of the transmission assembly (5); the transmission assembly (5) comprises a main shaft (51); an upper ratchet (55) is installed at the bottom end of the main shaft (51); a lower ratchet (56) is provided at the bottom of the upper ratchet (55); a screwdriver bit (58) is installed at the bottom of the lower ratchet (56); and the upper ratchet (55) and the lower ratchet (56) cooperate with each other.

2. The 8-channel cryotube lid opening device according to claim 1, characterized in that: The cover-removing mechanism (2) and the upper cover-opening mechanism are fixed via a mounting seat (3).

3. The 8-channel cryotube lid opening device according to claim 2, characterized in that: A beam sensor (4) is installed at the bottom of the mounting seat (3).

4. The 8-channel cryotube lid opening device according to claim 1, characterized in that: The decapping mechanism (2) comprises a screw motor (21), the output shaft of the screw motor (21) is equipped with a driving screw (23), a screw slider (24) is equipped on the driving screw (23), lifting rods (25) are equipped at the bottoms of both sides of the screw slider (24), and a decapping plate (27) is equipped at the bottom of the lifting rod (25).

5. The 8-channel cryotube cover opening device according to claim 4, characterized in that: The screw motor (21) is mounted on the mounting seat (3) via a fixing plate (22).

6. The 8-channel cryotube cover opening device according to claim 4, characterized in that: The lifting rod (25) is connected to the mounting seat (3) via a linear bearing (26).

7. The 8-channel cryotube lid opening device according to claim 1, characterized in that: A limiting sleeve (54) is provided on the upper portion of the upper ratchet (55), and the limiting sleeve (54) is in sliding engagement with the main shaft (51). A guide sleeve (57) is provided on the bottom of the lower ratchet (56), and the guide sleeve (57) is in sliding engagement with the main shaft (51).

8. The 8-channel cryotube lid opening device according to claim 1, characterized in that: A driving gear (53) is installed on the upper portion of the main shaft (51), and the driving gears (53) of the main shaft (51) are linked via a reversing gear (11). The output shaft of the brushless motor (1) is rotatably connected to the top end of one of the main shafts (51).

9. The 8-channel cryotube cover opening device according to claim 8, characterized in that: The number of the transmission assemblies (5) is eight, and the driving gears (53) of each adjacent transmission assembly (5) rotate via a reversing gear (11).

10. The 8-channel cryotube cover opening device according to claim 9, characterized in that: The top end of the main shaft (51) is mounted on the outer shell of the brushless motor (1) via a bearing (52).