Freezing box de-icing device

Abstract

The application discloses a freezing box deicing device, which comprises a main body, a vibration motor, a first connecting rod, a second connecting rod, a tray, a third connecting rod and a top cover. The first connecting rod is movably arranged on the main body in the vertical direction. One end of the second connecting rod is fixedly connected with the upper end of the first connecting rod, and the second connecting rod is provided with a first connecting hole. The tray is used for placing freezing boxes. The third connecting rod extends in the vertical direction, passes through the first connecting hole, is in clearance fit with the first connecting hole, is elastically connected with the main body, and is movably connected with the second connecting rod. The top cover is provided with a plurality of holes, each of which is used for clamping a corresponding freezing tube. The freezing box deicing device is beneficial to eliminating the micro-negative pressure effect, and the freezing box and the freezing tube can be easily separated. In addition, excessive rotation of the freezing tube is avoided, the cap of the freezing tube is prevented from being unscrewed, and biological samples are prevented from being polluted.

Description

Technical Field

[0001] This application relates to the field of biological sample storage technology, and in particular to a de-icing device for cryopreservation boxes. Background Technology

[0002] The statements herein are provided only as background information in connection with this application and do not necessarily constitute prior art.

[0003] With the rapid development of the biopharmaceutical industry and the rise of large-scale biobanks, the storage capacity of biological samples is increasing. Generally, biological samples such as tissues and cells from clinical or laboratory settings are stored in cryovials. A cryovial consists of a tube body and a cap. The tube body defines a placement cavity for the biological sample, and the cavity has a top opening. The cap is used to open and close the top opening. Cryovials need to be stored in cryovial boxes, which have multiple slots, each for placing a cryovial. The cryovial box needs to be placed in storage equipment such as a liquid nitrogen tank or freezer for storage.

[0004] These storage devices operate at very low temperatures, typically below -80 or -150 degrees Celsius, causing severe ice buildup between the cryovials and cryopreservation containers, making it difficult to remove the cryovials. Melting the ice with heat would damage the biological samples. Therefore, a more suitable method is de-icing by vibration. However, manually removing the cryovials during vibration de-icing can easily cause frostbite; thus, a vibration de-icing device is needed.

[0005] In the process of developing this invention, the inventors discovered that during the de-icing process of the vibration device, ice in certain areas between the cryopreservation box and the cryovials melts earlier. If this earlier melted ice is not connected to the outside space, forming a closed space, a slight negative pressure effect will be created because the volume of ice is larger than that of water. This slight negative pressure will cause an adsorption force between the cryopreservation box and the cryovials, making it difficult to separate them. Although the slight negative pressure can be eliminated by the relative movement of the cap holding the cryovial and the tray fixing the cryopreservation box, such mechanisms are prone to causing the cap of the cryovial to unscrew during movement, thereby contaminating the biological sample. Summary of the Invention

[0006] In view of the above problems, this application is made in order to provide a de-icing device for cryogenic containers that overcomes or at least partially solves the above problems.

[0007] This application provides a defrosting device for cryopreservation boxes, comprising: a main body; a vibration motor fixed to the main body for driving the main body to vibrate; a first connecting rod extending vertically and movably disposed on the main body; a second connecting rod extending horizontally in a first direction, one end of the second connecting rod being fixedly connected to the upper end of the first connecting rod, and the second connecting rod having a first connecting hole; and a tray fixed to the lower end of the first connecting rod, the tray defining a placement position for placing the cryopreservation box. The cryopreservation box is used to store multiple cryopreservation tubes; a third connecting rod extends vertically, passes through the first connecting hole, and is clearance-fitted with the first connecting hole; the third connecting rod is elastically connected to the main body and can be vertically and movably connected to the second connecting rod; a top cover is fixed below the third connecting rod and located above the placement position; the top cover has multiple openings, each corresponding to one of the multiple cryopreservation tubes, and each opening is used to hold the corresponding cryopreservation tube; a fourth connecting rod extends horizontally in a first direction, one end of which is fixedly connected to the upper end of the third connecting rod; the fourth connecting rod has a second connecting hole, which, along with the first connecting hole, is arranged along the first horizontal direction, and the second connecting hole is closer to the first connecting rod in the first horizontal direction; a column is fixed to the second connecting rod, passes through the second connecting hole, and is clearance-fitted with the second connecting hole.

[0008] Optionally, the defrosting device for the cryopreservation box further includes a spring, one end of which is fixedly connected to the fourth connecting rod, and the other end of which is fixedly connected to the main body, thereby enabling an elastic connection between the third connecting rod and the main body.

[0009] Optionally, the second connecting rod includes a plate portion with the first connecting hole; and the cryogenic box de-icing device further includes a first fixing member and a second fixing member, both of which are fixed to the third connecting rod. The dimensions of the first fixing member and the second fixing member are both larger than the diameter of the first connecting hole, and the first fixing member is located above the first connecting hole, while the second fixing member is located below the first connecting hole. The gap between the first fixing member and the second fixing member is greater than the thickness of the plate portion. The first fixing member and the second fixing member are used to enable the third connecting rod and the second connecting rod to be vertically and movably connected.

[0010] Optionally, the main body includes a base plate, and the vibration motor is fixed to the upper surface of the base plate; and the cryogenic box de-icing device also includes a guide rail, the guide rail extends vertically, and the guide rail is vertically slidably connected to the base plate, and the guide rail is fixedly connected to the first connecting rod.

[0011] Optionally, the main body further includes: a connecting plate, the connecting plate extending vertically, and the lower end of the connecting plate being fixedly connected to the base plate; a sliding seat, the sliding seat being fixedly connected to the upper end of the connecting plate, the sliding seat defining a vertically extending sliding groove, and the guide rail being vertically slidably disposed in the sliding groove.

[0012] Optionally, the connecting plate includes: a first sub-plate, which extends vertically and has its lower end fixedly connected to the base plate; and a second sub-plate, which extends vertically and has its upper end fixedly connected to the sliding seat, with its lower end detachably connected to the upper end of the first sub-plate, and the connection position between the lower end of the second sub-plate and the upper end of the first sub-plate is adjustable.

[0013] Optionally, the defrosting device for the cryogenic container further includes: a rack fixed to the guide rail; and a gear rotatably mounted on the connecting plate, the rotation of which drives the rack to move vertically, thereby causing the guide rail to slide vertically in the sliding groove.

[0014] Optionally, the defrosting device for the cryogenic container further includes: a handle fixed to the rack; and / or a drive motor connected to the gear drive, the drive motor being used to drive the gear to rotate.

[0015] The cryopreservation box defrosting device provided in this application uses a vibration motor to drive the main body to vibrate, thereby transmitting the vibration to the cryopreservation box and cryopreservation tubes. However, this vibration alone is insufficient to eliminate the micro-negative pressure effect, making it difficult to separate the cryopreservation box from the cryopreservation tubes. Therefore, this application also allows the tray and top cover to move vertically as a whole. The elastic connection between the top cover and the main body causes changes in the elastic force between the top cover and the main body during vertical movement, resulting in a tendency for the top cover to move. The third connecting rod and the first connecting hole are in clearance fit, and the third connecting rod and the second connecting rod can be vertically and movably connected. This allows the top cover to move relative to the tray in both the horizontal and vertical directions. Since the top cover also holds the cryopreservation tubes, it will drive the cryopreservation tubes to move, thereby facilitating the connection between the sealed space between the cryopreservation tubes and the cryopreservation box and the outside world, which helps to eliminate the micro-negative pressure effect and makes it easier to separate the cryopreservation box from the cryopreservation tubes. The second connecting hole and the first connecting hole are arranged along a horizontal first direction, with the second connecting hole being closer to the first connecting rod in the horizontal first direction. This prevents the top cap from rotating too much along the vertical axis, thus avoiding the cap of the cryopreservation tube from opening due to excessive rotation, and thus preventing the biological sample from being contaminated. Attached Figure Description

[0016] Other objects and advantages of this application will become apparent from the following description of the application with reference to the accompanying drawings, and will help to provide a comprehensive understanding of the application.

[0017] Figure 1 This is a schematic diagram of the structure of a cryogenic container de-icing device according to some embodiments of this application; Figure 2 yes Figure 1 Another perspective view of the structure shown; Figure 3 yes Figure 1 The diagram shows the structure after some parts of the structure have been hidden. Figure 4 yes Figure 3 Another perspective view of the structure shown; Figure 5 yes Figure 1 A schematic diagram of the main body of the structure shown and the vibration motor; Figure 6 yes Figure 5 Another perspective view of the structure shown.

[0018] In the diagram, 10 is the defrosting device for the cryogenic container, 100 is the main body, 110 is the base plate, 120 is the connecting plate, 121 is the first sub-plate, 122 is the second sub-plate, 130 is the sliding seat, 131 is the sliding groove, 200 is the vibration motor, 310 is the first connecting rod, 320 is the second connecting rod, 321 is the plate, 330 is the third connecting rod, 340 is the fourth connecting rod, 341 is the second connecting hole, 410 is the tray, 411 is the placement position, 420 is the top cover, 421 is the opening, 500 is the column, 600 is the spring, 710 is the first fixing component, 720 is the second fixing component, 800 is the guide rail, 910 is the gear, 920 is the rack, and 930 is the handle. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only one embodiment of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the described embodiments of this application without creative effort are within the scope of protection of this application.

[0020] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning as understood by a person of ordinary skill in the art to which this application pertains.

[0021] This embodiment provides a cryopreservation box de-icing device 10. Figure 1 This is a schematic diagram of the structure of the cryopreservation box de-icing device 10 according to some embodiments of this application. Figure 2 yes Figure 1 Another perspective view of the structure shown. Figure 3 yes Figure 1 The diagram shown is a structural schematic with some components hidden (main body 100, vibration motor 200, guide rail 800, gear 910, rack 920, and handle 930 are hidden). Figure 4 yes Figure 3 Another perspective view of the structure shown. Figure 5 yes Figure 1 The schematic diagram of the main body 100 and the vibration motor 200 shown is as follows. Figure 6 yes Figure 5 Another perspective view of the structure shown.

[0022] The cryogenic defrosting device 10 includes a main body 100, a vibration motor 200, a first connecting rod 310, a second connecting rod 320, a tray 410, a third connecting rod 330, and a top cover 420.

[0023] A vibration motor 200 is fixed to the main body 100 and is used to drive the main body 100 to vibrate. A first connecting rod 310 extends vertically and is vertically movable on the main body 100. A second connecting rod 320 extends horizontally in a first direction, one end of which is fixedly connected to the upper end of the first connecting rod 310, and the second connecting rod 320 has a first connecting hole. A tray 410 is fixed to the lower end of the first connecting rod 310, and the tray 410 defines a placement position 411 for placing a cryopreservation box, which is used to store multiple cryopreservation tubes. A third connecting rod 330 extends vertically, passes through the first connecting hole, and is clearance-fitted with the first connecting hole. The third connecting rod 330 is elastically connected to the main body 100, and is vertically movable to the second connecting rod 320. The top cover 420 is fixed below the third connecting rod 330 and is located above the placement position 411. The top cover 420 has multiple openings 421, each corresponding to one of the multiple cryopreservation tubes, and each opening 421 is used to hold the corresponding cryopreservation tube. The cryopreservation box defrosting device 10 also includes a fourth connecting rod 340 and a column 500. The fourth connecting rod 340 extends along a first horizontal direction, and one end of the fourth connecting rod 340 is fixedly connected to the upper end of the third connecting rod 330. The fourth connecting rod 340 has a second connecting hole 341, which is arranged along the first horizontal direction, and the second connecting hole 341 is closer to the first connecting rod 310 in the first horizontal direction. The column 500 is fixed to the second connecting rod 320, and the column 500 passes through the second connecting hole 341, with a clearance fit between the column 500 and the second connecting hole 341.

[0024] A cryopreservation box is a container specifically designed for the long-term cryogenic storage of biological samples. Cryopreservation boxes are typically made of cryogenic engineering plastics and have multiple placement holes arranged inside to hold cryopreservation tubes. These placement holes can be arranged in various ways, such as a matrix arrangement or a staggered arrangement.

[0025] Cryopreservation tubes are small tubular containers specifically designed for long-term cryogenic storage of biological samples. A cryopreservation tube consists of a body and a cap. The body defines a lumen with a top opening for holding the biological sample. The cap is used to open and close the top opening. Specifically, the cap has internal threads, and the body has external threads, allowing for a detachable connection between the body and cap via these threads. Cryopreservation tubes can be made of high-quality plastics (such as polypropylene) resistant to extreme low temperatures (e.g., -196°C liquid nitrogen or -80°C) to ensure they do not become brittle or break at low temperatures. Their capacity ranges from 0.5 ml to 5 ml, suitable for storing small, precious samples. A silicone gasket can be placed between the body and cap to ensure an airtight seal.

[0026] The vibration motor 200 is a special type of motor that converts electrical energy into mechanical vibration energy. Its core working principle is based on Newton's third law (the law of action and reaction) and the centrifugal force generated by a rotating object. Its key component is an eccentric block (or unbalanced weight) mounted on the motor rotor shaft. Since the vibration motor 200 is well-known to those skilled in the art, it will not be described in detail here.

[0027] Specifically, the vibration motor 200 can be a rotor-type vibration motor 200 (whose eccentric blocks are directly mounted on the rotor inside the motor, resulting in a compact structure and ease of use), an external block vibrator (which has adjustable eccentric blocks installed at both ends of the motor's output shaft, allowing the magnitude and form of the excitation force to be changed by adjusting the relative angle of the two eccentric blocks), a linear vibration motor (which contains an alternating moving magnet or voice coil, generating reciprocating linear vibration through a spring system 600), or an eccentric rotor motor (which is a miniature DC motor with a small eccentric block on the shaft, resulting in a simple structure and low cost), etc. The vibration motor 200 can be fixed to the main body 100 by various methods such as bolts, rivets, adhesives, and welding. The vibration of the vibration motor 200 can be transmitted to the main body 100.

[0028] The first connecting rod 310 extends vertically and is vertically movable on the main body 100, that is, the first connecting rod 310 can move vertically relative to the main body 100.

[0029] The second connecting rod 320 extends along a horizontal first direction, which can be a front-back direction, or in other embodiments, other directions.

[0030] One end of the second connecting rod 320 is fixedly connected to the upper end of the first connecting rod 310. The one end of the second connecting rod 320 can be the rear end or the front end. The one end of the second connecting rod 320 and the upper end of the first connecting rod 310 can be fixedly connected by various methods such as bolts, rivets, adhesives, and welding. Alternatively, the second connecting rod 320 and the first connecting rod 310 can be integrally formed.

[0031] The second connecting rod 320 has a first connecting hole. Understandably, the first connecting hole vertically penetrates the second connecting rod 320, and the shape of the first connecting hole can be various shapes such as circle, rectangle, or irregular shape.

[0032] The tray 410 can be fixed to the lower end of the first connecting rod 310 by various means such as bolts, rivets, adhesives, and welding. The tray 410 may include a front plate, a rear plate, a left side plate, a right side plate, and a bottom plate 110 that are connected to each other. The front plate, rear plate, left side plate, right side plate, and bottom plate 110 together define a placement position 411 for placing the cryopreservation box. The placement position 411 has an opening at the top. The rear plate of the tray 410 can be fixedly connected to the lower end of the first connecting rod 310, or other parts of the tray 410 can be fixedly connected to the lower end of the first connecting rod 310.

[0033] The third connecting rod 330 extends vertically and passes through the first connecting hole, with its upper end above and lower end below the first connecting hole. The third connecting rod 330 and the first connecting hole are in clearance fit, meaning the area of ​​the first connecting hole is larger than the cross-sectional area of ​​the portion of the third connecting rod 330 located at the first connecting hole. The third connecting rod 330 is elastically connected to the main body 100, allowing elastic movement between them. The third connecting rod 330 is also vertically movable to the second connecting rod 320, meaning they can displace vertically.

[0034] The top cover 420 is fixed to the bottom of the third connecting rod 330 by various means such as bolts, rivets, adhesives, and welding. The top cover 420 has multiple openings 421, which correspond one-to-one with the multiple cryopreservation tubes. Each opening 421 is used to hold the corresponding cryopreservation tube. Specifically, each opening 421 holds the corresponding cryopreservation tube in an interference fit manner, and each opening 421 can hold the cap of the corresponding cryopreservation tube.

[0035] One end of the fourth connecting rod 340 can be fixedly connected to the upper end of the third connecting rod 330 by various methods such as bolts, rivets, adhesives, or welding. Specifically, the front end of the fourth connecting rod 340 can be fixedly connected to the upper end of the third connecting rod 330. The second connecting hole 341 vertically penetrates the fourth connecting rod 340, and the shape of the second connecting hole 341 can be circular, rectangular, irregular, or other shapes.

[0036] The column 500 can be fixed to the second connecting rod 320 by various methods such as bolts, rivets, adhesives, and welding. The column 500 passes through the second connecting hole 341, that is, the upper end of the column 500 is located on the second connecting hole 341, and the lower end of the column 500 is located below the second connecting hole 341. The column 500 and the second connecting hole 341 are clearance-fitted. That is, the area of ​​the second connecting hole 341 is larger than the cross-sectional area of ​​the portion of the column 500 located at the second connecting hole 341.

[0037] The cryopreservation box de-icing device 10 provided in this embodiment has a vibration motor 200 that can drive the main body 100 to vibrate, so that the vibration can be transmitted to the cryopreservation box and the cryopreservation tube. However, if there is only this vibration, it is difficult to eliminate the micro negative pressure effect, and it is still difficult to separate the cryopreservation box and the cryopreservation tube. Therefore, this application also enables the tray 410 and the top cover 420 to move vertically as a whole. The elastic connection between the top cover 420 and the main body 100 and the vertical movement of the tray 410 and the top cover 420 will cause the elastic force of the top cover 420 and the main body 100 to change, so that the top cover 420 has a tendency to move. The third connecting rod 330 and the first connecting hole are in clearance fit, and the third connecting rod 330 and the second connecting rod 320 can be vertically and movably connected, so that the top cover 420 can move relative to the tray 410 in the horizontal and vertical directions. The top cover 420 also holds the cryopreservation tube, which will drive the cryopreservation tube to move, thereby facilitating the connection between the closed space between the cryopreservation tube and the cryopreservation box and the outside world, which is conducive to eliminating the micro negative pressure effect and making it easy to separate the cryopreservation box and the cryopreservation tube. The second guide point is formed by the second connecting hole 341 on the column 500 and the fourth connecting rod 340. This transforms the movement of the third connecting rod 330 from a single-point cantilever structure into a two-point guiding structure guided by both points (the first connecting hole and the second connecting hole 341). This significantly improves the straightness and stability of the vertical movement of the third connecting rod 330 and the top cover 420 below it. It ensures that the top cover 420 can press down vertically and smoothly, making the stress on all cryogenic tubes more uniform and significantly reducing the risk of tube wall rupture.

[0038] The second connecting hole 341 and the first connecting hole are arranged along the first horizontal direction, and the second connecting hole 341 is closer to the first connecting rod 310 in the first horizontal direction. This can prevent the top cover 420 from rotating too much along the vertical axis, thereby avoiding the cap of the cryopreservation tube from being unscrewed due to excessive rotation, and thus avoiding contamination of the biological sample.

[0039] In some embodiments, the cryopreservation box de-icing device 10 further includes a spring 600, one end of which is fixedly connected to the fourth connecting rod 340, and the other end of which is fixedly connected to the main body 100. The spring 600 enables the elastic connection between the third connecting rod 330 and the main body 100.

[0040] Specifically, one end of the spring 600 is equipped with a first hook, and the fourth connecting rod 340 is fixed with a first locking post, with the first hook engaging with the first locking post. The other end of the spring 600 is equipped with a second hook, and the main body 100 is fixed with a second locking post, with the second hook engaging with the second locking post. The spring 600 provides a compressible, flexible force. When the top cover 420 contacts the cryovial and continues to press down, the spring 600 compresses and deforms, absorbing excessive displacement instead of rigidly transmitting this displacement to the cryovial. This acts like a "buffer," effectively preventing crushing caused by excessive downward pressure or uneven height of the cryovials.

[0041] When the first connecting rod 310 moves vertically, the extension direction of the spring 600 can change. From front to back, the spring 600 can extend downward, upward, or horizontally. Specifically, when the spring 600 extends horizontally, it can be in a state of neither compression nor tension.

[0042] In some embodiments, the second connecting rod 320 includes a plate portion 321 with a first connecting hole. The cryogenic container de-icing device 10 also includes a first fixing member 710 and a second fixing member 720, both fixed to the third connecting rod 330. The dimensions of both the first fixing member 710 and the second fixing member 720 are larger than the diameter of the first connecting hole. The first fixing member 710 is located above the first connecting hole, and the second fixing member 720 is located below the first connecting hole. The gap between the first fixing member 710 and the second fixing member 720 is greater than the thickness of the plate portion 321. The first fixing member 710 and the second fixing member 720 are used to enable the third connecting rod 330 and the second connecting rod 320 to be vertically and movably connected.

[0043] The plate portion 321 can be located at the front end of the second connecting rod 320. The first fixing member 710 and the second fixing member 720 can be nuts with internal threads, and the third connecting rod 330 can have external threads. The first fixing member 710 and the second fixing member 720 are fixed to the third connecting rod 330 via their internal and external threads. The dimensions of both the first fixing member 710 and the second fixing member 720 are larger than the diameter of the first connecting hole, meaning that the first fixing member 710 and the second fixing member 720 cannot pass through the first connecting hole. Understandably, the vertical dimension of the gap between the first fixing member 710 and the second fixing member 720 is the distance by which the third connecting rod 330 and the second connecting rod 320 can move vertically.

[0044] This method ensures that the third connecting rod 330 always moves within the preset stroke range, greatly improving the reliability and safety of the device.

[0045] In some embodiments, the main body 100 includes a base plate 110, a vibration motor 200 is fixed to the upper surface of the base plate 110, and the cryopreservation box de-icing device 10 also includes a guide rail 800, which extends vertically and is vertically slidably connected to the base plate 110. The guide rail 800 is fixedly connected to the first connecting rod 310.

[0046] The vibration motor 200 can be fixed to the upper surface of the base plate 110 by various methods such as bolts, rivets, adhesives, and welding. A base foot can be fixed to the lower surface of the base plate 110. The guide rail 800 is vertically slidably connected to the base plate 110, meaning vertical movement is possible between the guide rail 800 and the base plate 110. The guide rail 800 can be fixedly connected to the first connecting rod 310 by various methods such as bolts, rivets, adhesives, and welding. The guide rail 800 provides stable and reliable vertical guidance for the tray 410.

[0047] In some embodiments, the main body 100 further includes a connecting plate 120 and a sliding seat 130. The connecting plate 120 extends vertically, and its lower end is fixedly connected to the base plate 110. The sliding seat 130 is fixedly connected to the upper end of the connecting plate 120, and defines a vertically extending sliding groove 131. The guide rail 800 is vertically slidably disposed in the sliding groove 131.

[0048] The lower end of the connecting plate 120 can be fixedly connected to the base plate 110 by various methods such as bolts, rivets, adhesives, and welding. The sliding seat 130 can be fixedly connected to the upper end of the connecting plate 120 by various methods such as bolts, rivets, adhesives, and welding. The sliding seat 130 may include a fixed plate and a fixed block. The fixed plate is fixedly connected to the upper end of the connecting plate 120, and the fixed block can be fixed to the fixed plate by various methods such as bolts, rivets, adhesives, and welding. The fixed block defines a vertically extending sliding groove 131.

[0049] The sliding seat 130 is a guiding component, and its internal sliding groove 131 provides a larger contact area and a more precise fit with the guide rail 800. This ensures the precise movement of the guide rail 800.

[0050] In some embodiments, the connecting plate 120 includes a first sub-plate 121 and a second sub-plate 122. The first sub-plate 121 extends vertically, and its lower end is fixedly connected to the base plate 110. The second sub-plate 122 extends vertically, and its upper end is fixedly connected to the sliding seat 130. The lower end of the second sub-plate 122 is detachably connected to the upper end of the first sub-plate 121, and the connection position between the lower end of the second sub-plate 122 and the upper end of the first sub-plate 121 is adjustable.

[0051] The lower end of the first sub-plate 121 can be fixedly connected to the base plate 110 by various means such as bolts, rivets, adhesives, and welding. The upper end of the second sub-plate 122 can be fixedly connected to the sliding seat 130 by various means such as bolts, rivets, adhesives, and welding. The lower end of the second sub-plate 122 and the upper end of the first sub-plate 121 are detachably connected by threads. The lower end of the second sub-plate 122 and the upper end of the first sub-plate 121 have multiple vertically arranged threaded holes, so that the connection position between the lower end of the second sub-plate 122 and the upper end of the first sub-plate 121 is adjustable.

[0052] This makes the overall height of the connecting plate 120 adjustable, improving the versatility of the freezer box de-icing device 10.

[0053] The defrosting device 10 for the cryogenic storage box may further include a rack 920 and a gear 910. The rack 920 is fixed to the guide rail 800, and the gear 910 is rotatably mounted on the connecting plate 120. The rotation of the gear 910 drives the rack 920 to move vertically, thereby causing the guide rail 800 to slide vertically in the sliding groove 131. The rack 920 can be fixed to the guide rail 800 by various means such as bolts, rivets, adhesives, or welding. The gear 910 can be rotatably mounted on the connecting plate 120 via a rotating shaft. The rack 920 and the gear 910 mesh, so that the rotation of the gear 910 drives the rack 920 to move vertically.

[0054] Gear 910 can prevent rack 920 from moving on its own under load, which means that once the height is adjusted, tray 410 will be reliably locked in the position and will not sink accidentally during vibration, ensuring a high level of safety.

[0055] The defrosting device 10 for the cryogenic container may also include a handle 930 and / or a drive motor, the handle 930 being fixed to a rack 920. The drive motor is driven by a gear 910, and the drive motor is used to drive the gear 910 to rotate.

[0056] The handle 930 can be fixed to the rack 920 by various methods such as bolts, rivets, adhesives, and welding, making it convenient for users to operate. The drive motor can be fixed to the sliding seat 130 by various methods such as bolts, rivets, adhesives, and welding, and the output shaft of the drive motor is driven by the gear 910, which saves users effort.

[0057] Regarding the embodiments of this application, it should also be noted that, without conflict, the embodiments of this application and the features in the embodiments can be combined with each other to obtain new embodiments.

[0058] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. The scope of protection of this application shall be determined by the scope of the claims.

Claims

1. A de-icing device for cryopreservation boxes, characterized in that, include: main body; A vibration motor is fixed to the main body and is used to drive the main body to vibrate. A first connecting rod extends vertically and is vertically movable within the main body; The second connecting rod extends along a horizontal first direction, one end of the second connecting rod is fixedly connected to the upper end of the first connecting rod, and the second connecting rod has a first connecting hole; A tray, fixed to the lower end of the first connecting rod, defines a placement position for placing a cryopreservation box, which is used to store multiple cryopreservation tubes; The third connecting rod extends along the vertical direction, passes through the first connecting hole, is clearance-fitted with the first connecting hole, is elastically connected to the main body, and is vertically movable to the second connecting rod; as well as The top cover is fixed below the third connecting rod and is located above the placement position. The top cover has multiple openings, each of which corresponds to one of the multiple cryopreservation tubes. Each opening is used to hold the corresponding cryopreservation tube. A fourth connecting rod extends along the first horizontal direction. One end of the fourth connecting rod is fixedly connected to the upper end of the third connecting rod. The fourth connecting rod has a second connecting hole. The second connecting hole and the first connecting hole are arranged along the first horizontal direction, and the second connecting hole is closer to the first connecting rod in the first horizontal direction. A column is fixed to the second connecting rod, the column passes through the second connecting hole, and the column and the second connecting hole are clearance-fitted.

2. The de-icing device for cryopreservation boxes according to claim 1, characterized in that, Also includes: A spring, one end of which is fixedly connected to the fourth connecting rod, and the other end of which is fixedly connected to the main body, wherein the spring enables the elastic connection between the third connecting rod and the main body.

3. The de-icing device for cryopreservation boxes according to claim 1, characterized in that, The second connecting rod includes a plate portion having the first connecting hole; and The de-icing device for the cryopreservation box further includes a first fixing member and a second fixing member. The first fixing member and the second fixing member are both fixed to the third connecting rod. The size of the first fixing member and the second fixing member is larger than the diameter of the first connecting hole. The first fixing member is located above the first connecting hole, and the second fixing member is located below the first connecting hole. The gap between the first fixing member and the second fixing member is greater than the thickness of the plate. The first fixing member and the second fixing member are used to realize the vertically movable connection between the third connecting rod and the second connecting rod.

4. The de-icing device for cryopreservation boxes according to claim 1, characterized in that, The main body includes a base plate, and the vibration motor is fixed to the upper surface of the base plate; and The de-icing device for the cryogenic container also includes a guide rail that extends vertically and is vertically slidably connected to the base plate. The guide rail is fixedly connected to the first connecting rod.

5. The de-icing device for cryopreservation boxes according to claim 4, characterized in that, The subject also includes: A connecting plate, the connecting plate extending vertically, and the lower end of the connecting plate being fixedly connected to the base plate; A sliding seat is fixedly connected to the upper end of the connecting plate. The sliding seat defines a vertically extending sliding groove, and the guide rail is vertically slidably disposed in the sliding groove.

6. The de-icing device for cryopreservation boxes according to claim 5, characterized in that, The connecting plate includes: The first sub-plate extends vertically, and its lower end is fixedly connected to the base plate. The second sub-plate extends vertically, with its upper end fixedly connected to the sliding seat. The lower end of the second sub-plate is detachably connected to the upper end of the first sub-plate, and the connection position between the lower end of the second sub-plate and the upper end of the first sub-plate is adjustable.

7. The de-icing device for cryopreservation boxes according to claim 5, characterized in that, Also includes: A rack, which is fixed to the guide rail; A gear is rotatably mounted on the connecting plate. The rotation of the gear drives the rack to move vertically, thereby causing the guide rail to slide vertically in the sliding groove.

8. The de-icing device for cryopreservation boxes according to claim 7, characterized in that, Also includes: A handle, which is fixed to the rack; and / or A drive motor is connected to the gear and is used to drive the gear to rotate.

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