Thermal sealing door

Abstract

The utility model relates to ultra -low temperature automation storage equipment technical field especially relates to a heat preservation sealing door, sets up in the automation monomer refrigerator, the automation monomer refrigerator includes sample storage cavity and access cavity, be provided with the passageway with access cavity intercommunication on the sample storage cavity, including located in the passageway and the cold air between the sample storage cavity and access cavity is sealed off and is sealed off the sealing door subassembly, the sealing door subassembly includes spring door main part and sealing plate main part, lifting and overturning mechanism. The utility model adopts double -sealed structure, and the openable partition of design can be in the upper shift and open sealing plate main part, and the operation access mechanism in the passageway is transferred into the sample storage cavity in access cavity when, and the sealing plate main part is closed when moving down, can cooperate spring door main part and carry out temperature isolation to sample storage cavity and access cavity, thereby reduce the cold air mutual interpenetration between different temperatures.

Description

Technical Field

[0001] This utility model relates to the field of ultra-low temperature automated storage equipment technology, and in particular to a heat-insulating and sealing door. Background Technology

[0002] The statements herein provide only background information in relation to this invention and do not necessarily constitute prior art.

[0003] Automated single-unit freezers typically include a -80°C sample storage chamber and a -20°C retrieval chamber. The -80°C sample storage chamber, especially for biological sample storage, is a core piece of equipment in modern biobanks and research laboratories. Its core requirement is to achieve rapid, accurate, and automated sample retrieval while maintaining a highly stable, deep-temperature environment in the sample storage area. The retrieval chamber contains a fixed retrieval mechanism designed to move cryovials between the -80°C sample storage chamber and the -20°C retrieval chamber.

[0004] In existing technologies, a common solution for achieving temperature isolation between the retrieval chamber and the sample storage chamber is to install a fixed insulated door or gate valve. For example, some devices install a fixed insulated partition at the passage between the retrieval chamber and the sample storage chamber, with a small door in the partition allowing only the robotic arm and cryopreservation box to pass through. This design reduces direct convection between the two chambers to some extent. However, the passage opening on this fixed partition remains open for extended periods during robotic arm retrieval operations, resulting in a continuous and intense exchange of cold air between the sample storage chamber and the retrieval chamber (relative to -80°C), a phenomenon known as "cold air crosstalk." Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned shortcomings by providing a heat-insulating and sealing door.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a heat-insulating and sealing door, installed inside an automated single-unit refrigerator, the automated single-unit refrigerator including a sample storage cavity and a retrieval cavity, the sample storage cavity being provided with a channel communicating with the retrieval cavity, the channel being used to operate a retrieval mechanism from the retrieval cavity to transfer a cryopreservation box into the sample storage cavity, including a sealing door assembly located in the channel and isolating and sealing the cold air between the sample storage cavity and the retrieval cavity, the sealing door assembly including a spring door body and a sealing plate body, the sealing plate body being disposed on one side of the spring door body and close to the sample storage cavity; After the cryopreservation box is transferred from the access cavity to the sample storage cavity, the spring door body remains normally closed without external force, and with the cooperation of the sealing plate body, it provides temperature isolation for the areas on both sides of the channel separated by the sealing door assembly. A lifting and flipping mechanism is correspondingly provided at the opening on the sample storage cavity that communicates with the channel, for driving the sealing plate body to move upward first and then flip, so that the opening on the channel located at the sample storage cavity is completely connected to the sample storage cavity and the access cavity.

[0007] Furthermore, the lifting and flipping mechanism includes a support frame located on the sample storage cavity with an opening and movably supporting the main body of the sealing plate, a movable plate relatively disposed on the support frame and connected to the main body of the sealing plate, guide blocks being provided on both sides of the movable plate, and guide rails being provided on the support frame for vertical movement of the guide blocks distributed on both sides.

[0008] Furthermore, a drive assembly is provided on the side of the moving plate away from the support frame; The drive assembly includes a rack at the same height as one side of the moving plate, a gear that is fitted on the rack and driven by a motor, and the motor is fixed in the sample storage cavity by a bracket.

[0009] Furthermore, a movable connecting assembly is provided between the sealing plate body and the moving plate; The movable connection assembly includes four movable blocks located on both sides and vertically on the sealing plate body. One end of each movable block is mounted on the sealing plate body via a pivot, and the other end of each movable block is rotatably mounted on the sliding plate. The support frame is also provided with a guide groove plate for guiding the movement of the pivot. The guide groove plate has a vertically formed guide groove, and a horizontal groove is provided at the top of the guide groove. The horizontal groove is used by the pivot to drive the sealing plate body to move vertically within the guide groove to the top, thereby causing the sealing plate body connected to the pivot to flip over.

[0010] Furthermore, a sealing strip is provided on the end face of the sealing plate body corresponding to the support frame.

[0011] Furthermore, the upper part of the sample storage cavity is provided with a narrow space sufficient for the sealing plate body to move upward and flip over.

[0012] The beneficial effects of this utility model are reflected in: This invention features a double-sealing structure with a spring door body and a sealing plate body. The partition between the sample storage cavity and the retrieval cavity, designed to be openable, allows the retrieval mechanism within the retrieval cavity to easily transfer the cryopreservation box into the sample storage cavity when the sealing plate body is moved upwards to open. Conversely, when the sealing plate body is moved downwards to close, it works with the spring door body to isolate the sample storage cavity from the retrieval cavity at different temperatures, reducing the cross-contamination of cold air between them. Furthermore, the lifting and flipping mechanism applies force to the sealing plate body to control its opening and closing, ensuring that the opening in the channel at the sample storage cavity completely connects the sample storage cavity and the retrieval cavity. This achieves space avoidance in confined areas, facilitating the transfer of the cryopreservation box from the retrieval cavity into the sample storage cavity via the retrieval mechanism. Attached Figure Description

[0013] Figure 1 This is a perspective view of the overall external structure of an embodiment of the present utility model; Figure 2 A perspective view of the sealing door assembly using this utility model; Figure 3 This is a perspective view of the relevant structures on the sealing plate body in one embodiment of the present invention.

[0014] In the picture: 1. Sample storage cavity; 2. Channel; 3. Spring door body; 4. Sealing plate body; 5. Lifting and flipping mechanism; 51. Support frame; 52. Moving plate; 53. Guide block; 54. Guide rail; 55. Rack; 56. Gear; 57. Guide groove plate; 6. Movable block. Detailed Implementation

[0015] 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 a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0016] Please see Figure 1-3This utility model discloses a heat-insulating and sealing door installed inside an automated single-unit refrigerator. The automated single-unit refrigerator includes a sample storage cavity 1 and a storage and retrieval cavity. The sample storage cavity 1 is provided with a channel 2 communicating with the storage and retrieval cavity. The channel 2 is used to transfer a cryopreservation box from the storage and retrieval cavity to the sample storage cavity 1 by operating a storage and retrieval mechanism. The door assembly includes a sealing door assembly located in the channel 2 to isolate and seal the cold air between the sample storage cavity 1 and the storage and retrieval cavity. The sealing door assembly includes a spring door body 3 and a sealing plate body 4. The sealing plate body 4 is disposed on one side of the spring door body 3 and close to the sample storage cavity 1. After the cryopreservation box is transferred from the access cavity to the sample storage cavity 1, the spring door body 3 remains normally closed without external force, and with the cooperation of the sealing plate body 4, it provides temperature isolation for the areas on both sides of the channel 2 separated by the sealing door assembly. The lifting and flipping mechanism 5 is correspondingly set at the opening on the sample storage cavity 1 that communicates with the channel 2, and is used to drive the sealing plate body 4 to move upward and then flip, so that the opening on the channel 2 located at the sample storage cavity 1 is completely connected to the sample storage cavity 1 and the access cavity.

[0017] In specific implementation, the partition structure formed by the above structure is designed to be openable. When it is opened upward, it is convenient to use the storage mechanism in the storage cavity to transfer the cryopreservation box into the sample storage cavity 1. When it is closed downward, it can cooperate with the spring door body 3 to isolate the sample storage cavity 1 from the storage cavity at temperature, thereby reducing the mutual flow of cold air between different temperatures. Furthermore, the installed lifting and flipping mechanism 5 applies force to the sealing plate body 4, which facilitates the control of the opening and closing state of the sealing plate body 4, so that the opening on the channel 2 located at the sample storage cavity 1 is completely connected to the sample storage cavity 1 and the access cavity, thus achieving avoidance of narrow spaces.

[0018] It should be noted that the temperature inside the sample storage chamber is -80℃, and the temperature inside the retrieval chamber is -20℃.

[0019] Additional explanation: The spring door body 3 includes two left and right opening doors and springs installed at corresponding positions on the doors. Under the elastic action of the springs, the two opening doors are normally closed. During the process of transferring the cryopreservation box into the sample storage cavity 1 through the spring door body 3 using the storage and retrieval mechanism, a signal can be detected by the sensor, and the controller will immediately drive the corresponding drive structure to open the two opening doors to a predetermined angle.

[0020] In one embodiment, the lifting and flipping mechanism 5 includes a support frame 51 located on the opening of the sample storage cavity 1 and movably supporting the sealing plate body 4, and a movable plate 52 relatively movably disposed on the support frame 51 and connected to the sealing plate body 4. Guide blocks 53 are provided on both sides of the movable plate 52, and guide rails 54 are provided on the support frame 51 for vertical movement of the guide blocks 53 distributed on both sides. With this design, by using the support frame 51 installed at the opening of the sample storage cavity 1 and the movable plate 52 relatively moving on the support frame 51, when the movable plate 52 is moved by an external force, it will drive the sealing plate body 4 connected to the movable plate 52 to open and close the channel 2 at the opening, thereby solving the problem of not affecting storage and retrieval and avoiding the loss of cold air between the sample storage cavity 1 and the access cavity.

[0021] Furthermore, guide blocks 53 are bolted to both sides of the moving plate 52, and guide rails 54 are bolted to the same height on the support frame 51. The adaptive sliding of the guide blocks 53 on the guide rails 54 can help realize the relative movement of the moving plate 52 on the surface of the support frame 51.

[0022] In one embodiment, a drive assembly is provided on the side of the movable plate 52 away from the support frame 51; The drive assembly includes a rack 55 mounted at the same height on one side of the transfer plate 52, and a gear 56 engaged on the rack 55 and driven by a motor. The motor is fixed inside the sample storage cavity 1 by a bracket. With this design, by starting the motor via the rack 55 bolted at the same height on one side of the transfer plate 52 and the gear 56 driven by the motor mounted on the bracket, the gear 56 rotates, and the meshing connection between the rack 55 and the gear 56 drives the rack 55 and the transfer plate 52 fixed on the rack 55 to move linearly.

[0023] In one embodiment, a movable connecting assembly is provided between the sealing plate body 4 and the moving plate 52; The movable connection assembly includes four movable blocks 6 located on both sides and vertically on the sealing plate body 4. One end of each movable block 6 is mounted on the sealing plate body 4 via a pivot, and the other end of each movable block 6 is rotatably mounted on the moving plate 52. The support frame 51 is also provided with a guide plate 57 for guiding the movement of the pivot. The guide plate 57 has a vertically formed guide groove, and a horizontal groove is provided at the top of the guide groove. The horizontal groove is used by the pivot to drive the sealing plate body 4 to move vertically within the guide groove to the top, thereby causing the sealing plate body 4 connected to the pivot to flip over. This design, by using movable blocks 6 mounted on both sides of the sealing plate body 4 with rotating shafts, and two guide plates 57 symmetrically mounted on the support frame 51 with rotating shafts on the other end of the movable blocks 6, allows the sealing plate body 4 to move vertically within the guide grooves and horizontal grooves smoothly connected by rotating shafts during the vertical movement of the sealing plate body 4 to open and close the channel 2. This enables the sealing plate body 4 to move vertically to the top within the guide grooves and then continue to rotate the sealing plate body 4 connected to the rotating shaft, making the opening on the sample storage cavity 1 that communicates with the channel 2 completely connected. A complete opening without any obstruction is formed between the sample storage cavity 1 and the retrieval cavity, achieving a truly "open" layout. This facilitates the transfer of the cryopreservation box from the retrieval cavity into the sample storage cavity 1 by operating the retrieval mechanism. Furthermore, the sealing plate body 4 is flipped from vertical to horizontal, which prevents the bottom of the sealing plate body 4 from interfering with or colliding with the shelves and other structures in the sample storage cavity 1 during transfer.

[0024] In one embodiment, a sealing strip is provided on the end face of the sealing plate body 4 corresponding to the support frame 51. This design improves the sealing performance of the sealing plate body 4 at the corresponding opening by installing the sealing strip on the end face of the support frame 51, effectively preventing external air from entering and maintaining the stability of the internal environment of the sample storage cavity 1, especially in low-temperature environments with strict temperature requirements.

[0025] In one embodiment, a narrow space is provided in the upper part of the sample storage cavity 1, sufficient for the sealing plate body 4 to move upward and flip. This design, through the narrow space in the upper part of the sample storage cavity 1, allows the rotation axis of the sealing plate body 4 to rise to a certain height, ensuring that its lowermost end can completely avoid obstacles below when flipping, achieving unobstructed rotation.

[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0027] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] Additionally, "multiple" refers to two or more.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat-insulating and sealing door, installed inside an automated single-unit refrigerator, the automated single-unit refrigerator including a sample storage cavity (1) and a retrieval cavity, wherein the sample storage cavity (1) is provided with a channel (2) communicating with the retrieval cavity, the channel (2) being used to transfer cryopreservation boxes from the retrieval cavity to the sample storage cavity (1) by operating a retrieval mechanism, characterized in that: The sealing door assembly includes a sealing door assembly located within the channel (2) and sealing the cold air between the sample storage cavity (1) and the access cavity. The sealing door assembly includes a spring door body (3) and a sealing plate body (4). The sealing plate body (4) is disposed on one side of the spring door body (3) and close to the sample storage cavity (1). After the cryopreservation box is transferred from the access cavity to the sample storage cavity (1), the spring door body (3) remains normally closed without external force, and with the cooperation of the sealing plate body (4), the area on both sides of the channel (2) separated by the sealing door assembly is temperature isolated. The lifting and flipping mechanism (5) is correspondingly set at the opening on the sample storage cavity (1) that communicates with the channel (2), and is used to drive the sealing plate body (4) to move up first and then flip, so that the opening on the channel (2) located at the sample storage cavity (1) is completely connected to the sample storage cavity (1) and the access cavity.

2. The insulated and sealed door according to claim 1, characterized in that: The lifting and flipping mechanism (5) includes a support frame (51) with an opening on the sample storage cavity (1) and movable support for the sealing plate body (4), and a movable plate (52) that is relatively moved on the support frame (51) and connected to the sealing plate body (4). Guide blocks (53) are provided on both sides of the movable plate (52) and on the upper and lower sides. The support frame (51) is provided with guide rails (54) for vertical movement of the guide blocks (53) distributed on both sides.

3. The insulated and sealed door according to claim 2, characterized in that: A drive assembly is provided on the side of the movable plate (52) away from the support frame (51); The drive assembly includes a rack (55) at the same height on one side of the transfer plate (52), and a gear (56) that is fitted on the rack (55) and driven by a motor. The motor is fixed in the sample storage cavity (1) by a bracket.

4. The heat-insulating and sealing door according to claim 2, characterized in that: A movable connecting assembly is provided between the sealing plate body (4) and the moving plate (52); The movable connection assembly includes four movable blocks (6) located on both sides of the sealing plate body (4) and at vertical positions. One end of each movable block (6) is mounted on the sealing plate body (4) via a rotating shaft, and the other end of each movable block (6) is rotatably mounted on the moving plate (52). The support frame (51) is also provided with a guide groove plate (57) for guiding the rotating shaft to move. The guide groove plate (57) has a vertically opened guide groove, and a horizontal groove is provided at the top of the guide groove. The horizontal groove is used for the rotating shaft to drive the sealing plate body (4) to move vertically within the guide groove to the top, and then drive the sealing plate body (4) connected to the rotating shaft to flip.

5. The heat-insulating and sealing door according to claim 2, characterized in that: A sealing strip is provided on the end face of the sealing plate body (4) corresponding to the support frame (51).

6. The heat-insulating and sealing door according to claim 1, characterized in that: The upper part of the sample storage cavity (1) is provided with a small space sufficient for the sealing plate body (4) to move upward and flip.

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