Storage rack device and low-temperature sample storage equipment

Abstract

The utility model belongs to the technical field of medical equipment, and particularly relates to a storage rack device and low-temperature sample storage equipment, and the storage rack device comprises a storage rack assembly which is used for storing trays; the one-way channel mechanism comprises a plurality of mutually separated pick-and-place channels arranged on the storage rack assembly side by side and a rotating baffle rotationally arranged on the storage rack assembly, and the rotating baffle is located above the output ends of the pick-and-place channels and has an open state and a closed state; when the rotary baffle rotates to an open state, an avoiding space is formed between the rotary baffle and the taking and placing channel to allow the test tube tray to be taken out; when the rotary baffle rotates to a closed state, at least part of the avoiding space is closed, so that the empty tray is allowed to pass and the tray with the test tube is prevented from being put back. According to the utility model, an operator can smoothly take out the tray with the test tube and prevent the tray with the test tube from being put back (only an empty tray is allowed to be put back), so that software system errors caused by misoperation of the operator are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a storage rack device and a sample low-temperature storage device. Background Art

[0002] Cryogenic sample storage devices are specialized devices designed to store and protect samples at a defined temperature. These devices are widely used in healthcare, biotechnology, disease prevention, chemical engineering, and scientific research to ensure sample integrity and biological activity. Cryogenic sample storage devices use a refrigeration system to lower the internal temperature and maintain it within a predetermined range, thereby inhibiting microbial growth and slowing the degradation of bioactive substances.

[0003] Due to the setting mechanism requirements of the sample low-temperature storage equipment, trays with test tubes can be manually output, but trays with test tubes are not allowed to be sent back to the manual pick-up and placement workstation, that is, only empty trays are allowed to be returned to the manual pick-up and placement workstation. If the personnel mistakenly load samples or clean the tubes improperly (put in trays with test tubes), the system cannot recognize the sample information, and the system defaults to an empty tray for the returned tray, resulting in abnormal conditions when operating the tray. The existing sample low-temperature storage equipment is not equipped with a corresponding blocking structure, and the forced blocking function cannot be realized. It is easy for personnel to make mistakes and cause software system errors, thereby causing equipment abnormalities. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a storage rack device and a sample low-temperature storage device to solve the technical problem in the prior art that system errors may occur due to human error in placing the test tube tray back into the channel position.

[0005] To achieve the above-mentioned and other related purposes, the technical solution of the present utility model is as follows:

[0006] A storage rack device, comprising:

[0007] a storage rack assembly for storing pallets;

[0008] The one-way channel mechanism includes a plurality of mutually separated retrieval channels arranged side by side on the storage rack assembly, and a rotating baffle rotatably arranged on the storage rack assembly, wherein the rotating baffle is located above the output end of the retrieval channel and has an open state and a closed state; when the rotating baffle is rotated to the open state, an escape space is formed with the retrieval channel to allow the tray with test tubes to be taken out; when the rotating baffle is rotated to the closed state, the escape space is at least partially closed to allow empty trays to pass through and prevent the tray with test tubes from being put back.

[0009] Optionally, when the rotating baffle is in a closed state, a limited gap is formed between the rotating baffle and the taking and placing channel, and the limited gap is smaller than the overall height of the tray with the test tubes and larger than the height of an empty tray.

[0010] Optionally, the rotating baffle is pushed and rotated to an open state when the test tube tray is taken out, and the rotating baffle rotates to a closed state by its own weight.

[0011] Optionally, a rotating shaft seat is provided on the storage rack assembly, and the top end of the rotating baffle is hinged on the rotating shaft seat; and / or, the one-way channel mechanism also includes a baffle buffer, which is provided at the output end of the retrieval channel, and the rotating baffle abuts against the baffle buffer when it rotates to a closed state.

[0012] Optionally, the one-way channel mechanism also includes an alarm element and an in-place sensor arranged corresponding to each of the retrieval channels, the alarm element is located on the top wall of the storage rack assembly, and the rotating baffle is provided with an observation hole corresponding to each of the alarm elements. The in-place sensor is located on the bottom wall of the storage rack assembly and adjacent to the output end of the retrieval channel, and the alarm element is electrically connected to the in-place sensor.

[0013] Optionally, the storage rack assembly includes an upper rack and a lower rack arranged in parallel, a plurality of partitions are arranged side by side between the upper rack and the lower rack, and the access channel is formed between adjacent partitions.

[0014] Based on the same concept, the present invention also provides a sample low-temperature storage device, comprising:

[0015] A storage rack device as described above, and

[0016] The heat-insulating storage body has a side panel, on which a loading and unloading window and a sealed door that rotates and opens and closes relative to the loading and unloading window are provided. The storage rack device is arranged in the heat-insulating storage body, at least one loading and unloading channel corresponds to the loading and unloading window, and the sealed door is provided with an observation window.

[0017] Optionally, a door-controlled lighting assembly is also included, which includes a lighting lamp arranged on the storage rack assembly and an induction switch arranged on the inside of the retrieval window. The lighting lamp is electrically connected to the induction switch, and the induction switch senses the opening or closing of the sealed door to turn on or off the lighting lamp.

[0018] Optionally, a door lock assembly is further included, which includes an electromagnetic lock arranged on the inside of the access window and a door lock buckle arranged on the inside of the sealed door. The door lock buckle is magnetically adsorbed or separated from the electromagnetic lock to close or open the sealed door and the access window.

[0019] Optionally, a protrusion extending into the interior of the access window is provided on the inner side of the sealing door, and a circle of magnetic sealing strip is provided on the periphery of the protrusion. When the sealing door and the access window are closed, the magnetic sealing strip is clamped between the sealing door and the side panel; a door body buffer is provided on the inner side of the access window. When the sealing door and the access window are closed, the protrusion abuts against the door body buffer.

[0020] As described above, the storage rack device and sample low-temperature storage equipment of the present invention have the following beneficial effects:

[0021] By setting a rotating baffle above the output end of the pick-and-place channel and switching the rotating baffle between the open and closed states, the tray with test tubes can be smoothly taken out and the tray with test tubes can be prevented from being put back (only empty trays are allowed to be put back), thereby avoiding personnel mistakenly putting the tray with tubes back and causing software system errors.

[0022] Furthermore, by setting up alarm components and in-place sensors, an alarm prompt can be issued according to the in-place status of the pallet, making it easier for personnel to judge the feasibility of picking up and placing the pallet;

[0023] Furthermore, by setting up a door-controlled lighting component, the lighting can be turned on or off according to the opening or closing of the sealed door, realizing automatic control of the lighting and providing lighting function for the operator;

[0024] Furthermore, by providing a door lock assembly, magnetic locking of the sealed door can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The overall structure of the storage rack device of the embodiment of the utility model is shown as follows Figure 1 ;

[0026] Figure 2 The overall structure of the storage rack device of the embodiment of the utility model is shown as follows Figure 2 ;

[0027] Figure 3 This is a partial structural diagram of a storage rack device according to an embodiment of the present utility model;

[0028] Figure 4 This is a front view of the overall structure of the storage rack device in the embodiment of the present utility model;

[0029] Figure 5 for Figure 4 Middle AA section view;

[0030] Figure 6 This is a schematic structural diagram of a sample low-temperature storage device in an embodiment of the present utility model;

[0031] Figure 7 The structure of the side panel of the heat preservation storage body in the embodiment of the utility model is shown in FIG. Figure 1 ;

[0032] Figure 8 The structure of the side panel of the heat preservation storage body in the embodiment of the utility model is shown in FIG. Figure 2 ;

[0033] Figure 9 for Figure 7 Middle BB section view;

[0034] Figure 10 for Figure 9 Enlarged view of middle C;

[0035] Figure 11 The sealing door in the embodiment of the present invention is open. Figure 1 ;

[0036] Figure 12 The sealing door in the embodiment of the present invention is open. Figure 2 .

[0037] Description of Reference Numerals

[0038] 100-Storage rack device;

[0039] 10-storage rack assembly; 11-upper rack; 12-lower rack; 13-partition; 14-shielding plate;

[0040] 20-pick-and-place channel;

[0041] 30 - rotating baffle; 30a - observation hole; 31 - shaft seat; 32 - baffle buffer; 33 - alarm element; 34 - in-position sensor; 35 - lighting;

[0042] 200-Insulated storage body;

[0043] 210-side panel;

[0044] 220 - access window; 221 - door lock fixing plate; 222 - induction switch; 223 - electromagnetic lock; 224 - door body buffer;

[0045] 230 - sealed door; 230a - protrusion; 231 - observation window; 232 - mounting plate; 233 - hinge; 234 - door lock; 235 - magnetic sealing strip. DETAILED DESCRIPTION

[0046] The following describes the implementation of the present invention using specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details herein may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention.

[0047] It should be noted that the diagrams provided in this embodiment are only used to illustrate the basic concept of the present invention. Therefore, the diagrams only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. The form, quantity and proportion of each component in actual implementation can be changed at will, and the layout of the components may be more complex. It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read. They are not used to limit the conditions for the implementation of the present invention and therefore have no technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose of the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should also be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0048] In order to describe the present invention in detail, the storage rack device and the sample low-temperature storage device of the present invention are specifically described below:

[0049] Please combine Figures 1 to 3 As shown, the utility model provides a storage rack device, comprising: a storage rack assembly 10 and a one-way channel mechanism, wherein the storage rack assembly 10 is used to store trays; the one-way channel mechanism comprises a plurality of mutually separated retrieval channels 20 arranged side by side on the storage rack assembly 10, and a rotating baffle 30 rotatably arranged on the storage rack assembly 10, the rotating baffle 30 is located above the output end of the retrieval channel 20, and has an open state and a closed state; when the rotating baffle 30 is rotated to the open state, it forms an avoidance space with the retrieval channel 20 to allow the tray with test tubes to be taken out; when the rotating baffle 30 is rotated to the closed state, it at least partially closes the avoidance space to allow empty trays to pass through and prevent the tray with test tubes from being put back.

[0050] Specifically, the storage rack assembly 10 is used to store trays (which may be trays with test tubes or empty trays). The storage rack assembly 10 provides an orderly storage space for the trays, so that the trays and the test tubes thereon can be placed neatly and safely. A plurality of mutually separated access channels 20 are arranged side by side on the storage rack assembly 10, wherein each access channel 20 corresponds to a tray, and a plurality of access channels 20 can hold a plurality of trays. The trays pass through each access channel 20 to remove the trays with test tubes from the access channel 20 and to put the empty trays back into the access channel 20 (the trays with test tubes cannot be put back into the access channel 20, otherwise it will cause confusion in the subsequent system programs). By providing a rotating baffle 30 at the output end of the access channel 20 and switching the state of the rotating baffle 30 (open or closed), it can meet different operational requirements for removing and putting back the trays. When the rotating baffle 30 is in the open position, that is, it rotates away from the access channel 20, the clearance space formed by the rotating baffle 30 and the access channel 20 allows the operator to easily remove the test tube tray without any obstruction. When the rotating baffle 30 is rotated to the closed position (i.e., the rotating baffle 30 partially engages the output end of the access channel 20), it at least partially encloses the clearance space. This design effectively prevents the operator from accidentally returning the test tube tray to the storage rack assembly 10, thereby avoiding the risk of misoperation. At the same time, this design also ensures that empty trays can pass smoothly through the access channel 20, facilitating subsequent operations. When the tray is removed, the rotating baffle 30 can be rotated to the open position to avoid the need. When the rotating baffle 30 is rotated to the closed position, even if the test tube tray is accidentally returned to the working position, the rotating baffle 30 will function to block the test tube tray and prevent it from being returned, effectively preventing the test tube tray from being misplaced. The combined use of the pick-up and placement channel 20 and the rotating baffle 30 allows the operator to follow a fixed process when picking up and placing the tray, can smoothly remove the tray with test tubes, and prevent the tray with test tubes from being put back (only empty trays are allowed to be put back), thereby avoiding the possibility of personnel mistakenly putting the tray with tubes back and causing software system errors.

[0051] In some embodiments, when the rotating baffle 30 is in the closed state, a limiting gap is formed between the rotating baffle 30 and the access channel 20, and the limiting gap is less than the overall height of the tray with test tubes and greater than the height of an empty tray. Specifically, when the rotating baffle 30 is in the closed state, the limiting gap formed between it and the access channel 20 (i.e., the gap between the lower edge of the rotating baffle 30 and the bottom wall of the access channel 20) is set to be less than the overall height of the tray with test tubes, but greater than the height of an empty tray. This design ensures that only empty trays can smoothly enter the access channel 20 through the limiting gap, while trays with test tubes are blocked from entering due to height issues. Since the limiting gap is less than the overall height of the tray with test tubes, even if an operator attempts to place the tray with test tubes back into the access channel 20 of the storage rack assembly 10, it will be blocked by the rotating baffle 30, thereby preventing the tray with test tubes from being accidentally placed back into the storage rack assembly 10. By precisely controlling the passability of the tray, operators can more quickly realize whether they have mistakenly put the tray with test tubes back, which helps reduce operation time and improve overall work efficiency. At the same time, since misoperation is avoided, the accuracy of operation is also improved.

[0052] In the above embodiment, the rotating baffle 30 is pushed and rotated to the open position when the test tube tray is removed, and then rotates to the closed position under its own weight. Specifically, the rotating baffle 30 is initially in the closed position by default. When the test tube tray is removed, the rotating baffle 30 is pushed and rotated to the open position by the removed test tube tray. After the tray is removed, the rotating baffle 30 returns to its original closed position due to gravity, thereby preventing the test tube tray from being accidentally returned to the retrieval channel 20. In this way, the rotating baffle 30 does not require a separate operation to open; the rotating baffle 30 is rotated to the open position by the action of removing the tray. This design ensures that the opening operation of the rotating baffle 30 does not require additional steps for the operator, thereby helping to improve work efficiency and reduce the operation process. After the test tube tray is removed, the rotating baffle 30 automatically rotates to the closed position under its own weight, eliminating the need for additional operation steps or power source, achieving automatic reset of the rotating baffle 30 and simplifying the operation process.

[0053] The storage rack assembly 10 is provided with a shaft seat 31, and the top end of the rotating baffle 30 is hingedly connected to the shaft seat 31. Specifically, the top end of the rotating baffle 30 is rotatably connected to the storage rack assembly 10 via the shaft seat 31. In this embodiment, two shaft seats 31 are provided, one at each end of the rotating baffle 30 along the length direction, and are hingedly connected to the rotating baffle 30.

[0054] See Figures 3 to 5It can be understood that the one-way channel mechanism also includes a baffle buffer 32, which is arranged at the output end of the access channel 20. When the rotating baffle 30 rotates to the closed state, it abuts against the baffle buffer 32. Specifically, at least two baffle buffers 32 can be provided, corresponding to the two ends of the rotating baffle 30 along its own length direction. The baffle buffer 32 can be an elastic cushion to alleviate the impact force when the rotating baffle 30 rotates to the closed state. When the rotating baffle 30 rotates to the closed state, the baffle buffer 32 abuts against it, which can effectively absorb the noise and vibration that may be generated when the rotating baffle 30 directly contacts the access channel 20, which not only helps to improve the operating stability of the entire device, but also reduces the noise during operation. In addition, the introduction of the baffle buffer 32 reduces the occurrence of impact, thereby extending the service life of the rotating baffle 30 and the storage rack assembly 10, and reducing maintenance costs.

[0055] See Figure 2 and Figure 4 In some embodiments, the storage rack assembly 10 includes an upper rack 11 and a lower rack 12 arranged in parallel, a plurality of partitions 13 are arranged side by side between the upper rack 11 and the lower rack 12, and the access channels 20 are formed between adjacent partitions 13. Specifically, the upper rack 11 and the lower rack 12 are arranged in parallel, and a plurality of parallel partitions 13 are connected between the upper rack 11 and the lower rack 12. The partitions 13 divide the storage space into a plurality of independent areas, and the spaces between adjacent partitions 13 form access channels 20. Each access channel 20 facilitates operators to take and place trays from the storage rack assembly 10. The top end of the rotating baffle 30 is rotatably connected to the storage rack assembly 10 through a rotating shaft seat 31. More specifically, the rotating baffle 30 is connected to the side wall of the upper rack 11 through two rotating shaft seats 31 and is adjacent to the output end of the access channel 20.

[0056] See Figure 2 and Figure 3In the above embodiment, the one-way channel mechanism further includes an alarm element 33 and an in-place sensor 34 corresponding to each of the pick-up and placement channels 20. The alarm element 33 is located on the top wall of the storage rack assembly 10. The rotating baffle 30 is provided with an observation hole 30a corresponding to each of the alarm elements 33. The in-place sensor 34 is located on the bottom wall of the storage rack assembly 10 and adjacent to the output end of the pick-up and placement channel 20. The alarm element 33 is electrically connected to the in-place sensor 34. Specifically, each of the pick-up and placement channels 20 is provided with an in-place sensor 34 and an alarm element 33. The alarm element 33 is provided on the upper frame 11, and the in-place sensor 34 is provided on the lower frame 12 near the output end of the pick-up and placement channel 20 and is shielded by the shielding plate 14 provided at the front end of the lower frame 12. By providing the in-place sensor 34, the alarm element 33 can issue a warning or in-place status prompt in real time according to the tray in-place status detected by the in-place sensor 34. The rotating baffle 30 is provided with viewing holes 30a corresponding to each alarm element 33. Through these holes, the operator can visually see the status of the alarm element 33. This design improves the visibility of the alarm information, allowing the operator to more quickly understand the tray's in-place status, facilitating tray retrieval and placement operations. The alarm element 33 can be a three-color indicator light, an alarm, a buzzer, or other devices. For example, if the alarm element 33 is a three-color indicator light, the three-color indicator light can display different colors based on the tray's in-place status detected by the in-place sensor 34 and software control coding. For example, when the three-color indicator light is green, the operator can proceed; when it is yellow, it indicates a warning level; and when it is determined that normal tray retrieval and delivery are affected, the three-color indicator light turns red, indicating a stop level, prohibiting tray retrieval and placement operations. In this way, by coordinating the alarm element 33 with the in-place sensor 34, an alarm prompt can be issued based on the tray's in-place status, allowing operators to quickly determine the feasibility of tray retrieval and placement, thereby improving work efficiency.

[0057] See Figures 6 to 8 Based on the same concept, the present invention also provides a sample low-temperature storage device, including: the storage rack device 100 as described above and an insulation storage body 200, the insulation storage body 200 has a side panel 210, the side panel 210 is provided with a loading window 220 and a sealing door 230 that rotates and opens and closes relative to the loading window 220, the storage rack device 100 is arranged in the insulation storage body 200, at least one of the loading and unloading channels 20 corresponds to the loading and unloading window 220, and the sealing door 230 is provided with an observation window 231.

[0058] Specifically, the thermal insulation storage body 200 is used to provide a constant temperature environment for samples to meet sample storage requirements, help maintain the integrity and activity of the samples, and extend their shelf life. The storage rack device 100 is arranged in the thermal insulation storage body 200, thereby facilitating orderly storage within the thermal insulation storage body 200. The side panel 210 of the thermal insulation storage body 200 is provided with an access window 220 and a sealed door 230. The sealed door 230 can tightly seal the access window 220 to prevent pollutants such as external air, humidity, and dust from entering the interior of the thermal insulation storage body 200, thereby protecting the storage rack device 100 and the samples from contamination. A mounting plate 232 is provided on the side panel 210 of the thermal insulation storage body 200 near the access window 220. The sealed door 230 is rotatably connected to the mounting plate 232 via a hinge 233, thereby realizing the rotational opening and closing of the sealed door 230. The hinge 233 is a hidden hinge with a maximum opening and closing angle of 180°, ensuring that the sealed door 230 can be fully opened. The sealed door 230 is opened and closed by rotating, allowing the operator to easily open and close it. This design is both convenient for operation and ensures the stability of the storage environment. At least one access channel 20 corresponds to the access window 220, allowing the operator to directly access the pallets in the storage rack device 100 through the access window 220. A transparent observation window 231 is provided on the sealed door 230 (for example, double-layer insulation glass is provided on the observation window 231), allowing the operator to observe the situation inside the thermal insulation storage body 200 without opening the sealed door 230. This design not only ensures the stability of the storage environment, but also improves the convenience of operation. For example, the warning status of the alarm element 33 can be visually observed through the observation window 231, so as to quickly judge the feasibility of accessing and placing the pallet, thereby improving the rationality of human-computer interaction.

[0059] See Figure 5 and Figure 10In some embodiments, the sample cryogenic storage device further includes a door-controlled lighting assembly, comprising a lamp 35 disposed on the storage rack assembly 10 and a sensor switch 222 disposed inside the access window 220. The lamp 35 is electrically connected to the sensor switch 222. The sensor switch 222 senses the opening or closing of the sealed door 230, thereby turning the lamp 35 on or off. Specifically, the lamp 35 is disposed on the upper shelf 11 of the storage rack assembly 10, behind the warning element. The sensor switch 222 is disposed inside the access window 220 to sense the opening or closing of the sealed door 230. The lamp 35 cooperates with the sensor switch 222. When the sensor switch 222 detects that the sealed door 230 is closed (for example, when the sensor switch 222 detects the door lock 234 on the sealed door 230), the lamp 35 turns on. Otherwise, the lamp 35 turns off, thereby providing lighting for accessing and placing trays. When the sealed door 230 is opened, the sensor switch 222 immediately detects this movement and automatically turns on the light 35. This automatic lighting function provides a bright working environment for the operator, allowing them to clearly see the access channel 20 and the trays on the storage rack assembly 10, thereby improving the convenience and accuracy of operation. When the sealed door 230 is closed, the sensor switch 222 turns off the light 35, avoiding unnecessary energy waste. The automatic on and off function of the light 35 eliminates the need for the operator to manually operate the light 35. On the one hand, it provides lighting for the operator when retrieving and placing trays, and on the other hand, it saves time and energy, thereby improving work efficiency.

[0060] See Figures 9 to 12As can be understood, the sample low-temperature storage device further includes a door lock assembly, which includes an electromagnetic lock 223 disposed on the inner side of the access window 220 and a door lock catch 234 disposed on the inner side of the sealed door 230. The door lock catch 234 is magnetically attracted to or separated from the electromagnetic lock 223 to close or open the sealed door 230 and the access window 220. Specifically, the electromagnetic lock 223 is disposed on the inner side of the access window 220 via a door lock fixing plate 221 and is located below the induction switch 222. The electromagnetic lock 223 has a lock tongue that can be extended or retracted. There is an accommodating gap between the electromagnetic lock 223 and the induction switch 222. When the sealed door 230 and the access window 220 are closed, the door lock catch 234 is inserted into the accommodating gap and magnetically attracted to the lock tongue extended from the electromagnetic lock 223. The electromagnetic lock 223 uses electromagnetic force to engage or disengage with the door lock catch 234, ensuring precise control over the closing and opening of the sealed door 230 and the access window 220, avoiding the potential loosening or misoperation issues associated with traditional mechanical locks. When the door needs to be opened to access a pallet, the control system sends a signal to the electromagnetic lock 223, causing its latch to retract and disengage from the door lock catch 234, allowing the sealed door 230 to be opened. A delay function can be set in the control system to control the door's self-locking function, causing the latch catch 234 to eject. When the door needs to be closed and locked, the sealed door 230 is closed, allowing the door lock catch 234 on the sealed door 230 to magnetically engage with the electromagnetic lock 223 in the access window 220, locking the sealed door 230.

[0061] See Figures 10 to 12In the above embodiment, the sealing door 230 is provided with a protrusion 230a on its inner side that extends into the access window 220. A magnetic sealing strip 235 is provided around the periphery of the protrusion 230a. When the sealing door 230 and the access window 220 are closed, the magnetic sealing strip 235 is sandwiched between the sealing door 230 and the side panel 210. A door buffer 224 is provided on the inner side of the access window 220. When the sealing door 230 and the access window 220 are closed, the protrusion 230a abuts against the door buffer 224. Specifically, the protrusion 230a of the sealing door 230 is adapted to fit within the access window 220, and a door lock catch 234 is provided on the protrusion 230a and adapted to fit within the electromagnetic lock 223. The magnetic sealing strip 235 is arranged around the periphery of the protrusion 230a, and is used to play a role of magnetic sealing when the sealing door 230 and the access window 220 are closed. The surface material of the side panel 210 of the thermal insulation storage body 200 is carbon steel. When the sealing door 230 is closed, the magnetic sealing strip 235 is attracted to the surface of the side panel 210 on the periphery of the access window 220, ensuring its sealing after closing the door, thereby improving the cleanliness and stability of the internal environment. Compared with traditional mechanical sealing methods, the use of the magnetic sealing strip 235 has better wear resistance and corrosion resistance, can maintain stable sealing performance for a long time, and extend the service life of the equipment. In addition, the door body buffer 224 arranged on the inner side of the access window 220 forms abutment with the protrusion 230a when the sealing door 230 and the access window 220 are closed. This design effectively absorbs the impact of closing the sealed door 230, preventing noise and vibration caused by direct impact. It also protects the frame of the sealed door 230 and access window 220 from damage, extending the service life of the device. The door buffer 224 is located on the door lock fixing plate 221 and below the electromagnetic lock 223. In this embodiment, the door buffer 224 utilizes a buffer column. The provision of the door buffer 224 makes the closing process of the sealed door 230 smoother, improving the overall user experience.

[0062] In summary, the storage rack device 100 and the sample low-temperature storage equipment provided by the present invention, by setting a rotating baffle 30 above the output end of the retrieval channel 20, can smoothly take out the test tube tray and prevent the test tube tray from being put back (only the empty tray is allowed to be put back) by switching the rotating baffle 30 between the open state and the closed state, thereby avoiding the personnel from mistakenly putting the tube tray back and causing software system errors; further, by setting an alarm element 33 and an in-place sensor 34, an alarm prompt can be given according to the in-place status of the tray, which is convenient for personnel to judge the feasibility of taking and placing the tray; by setting a door-controlled lighting component, the lighting lamp 35 can be controlled to be turned on or off according to the opening or closing of the sealed door 230, thereby realizing automatic control of the lighting lamp 35 and providing lighting function for the operator; by setting a door lock component, the magnetic locking of the sealed door 230 can be realized.

[0063] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. A storage rack device, characterized in that: include: a storage rack assembly for storing pallets; The one-way channel mechanism includes a plurality of mutually separated retrieval channels arranged side by side on the storage rack assembly, and a rotating baffle rotatably arranged on the storage rack assembly, wherein the rotating baffle is located above the output end of the retrieval channel and has an open state and a closed state; when the rotating baffle is rotated to the open state, an escape space is formed with the retrieval channel to allow the tray with test tubes to be taken out; when the rotating baffle is rotated to the closed state, the escape space is at least partially closed to allow empty trays to pass through and prevent the tray with test tubes from being put back.

2. The storage rack device according to claim 1, wherein: When the rotating baffle is in a closed state, a limited gap is formed between the rotating baffle and the taking and placing channel, and the limited gap is smaller than the overall height of the tray with the test tubes and larger than the height of an empty tray.

3. The storage rack device according to claim 1, wherein: The rotating baffle is pushed and rotated to an open state when the tray with the test tubes is taken out, and the rotating baffle rotates to a closed state by its own weight.

4. The storage rack device according to claim 1, wherein: A rotating shaft seat is provided on the storage rack assembly, and the top end of the rotating baffle is hinged on the rotating shaft seat; and / or the one-way channel mechanism also includes a baffle buffer, which is provided at the output end of the retrieval channel, and the rotating baffle abuts against the baffle buffer when it rotates to a closed state.

5. The storage rack device according to any one of claims 1 to 4, characterized in that: The one-way channel mechanism also includes an alarm element and an in-place sensor corresponding to each of the retrieval channels. The alarm element is located on the top wall of the storage rack assembly. The rotating baffle is provided with an observation hole corresponding to each of the alarm elements. The in-place sensor is located on the bottom wall of the storage rack assembly and adjacent to the output end of the retrieval channel. The alarm element is electrically connected to the in-place sensor.

6. The storage rack device according to any one of claims 1 to 4, characterized in that: The storage rack assembly includes an upper rack body and a lower rack body arranged in parallel, a plurality of partitions are arranged side by side between the upper rack body and the lower rack body, and the access channel is formed between adjacent partitions.

7. A sample low temperature storage device, characterized in that: include: The storage rack device according to any one of claims 1 to 6, and The heat-insulating storage body has a side panel, on which a loading and unloading window and a sealed door that rotates and opens and closes relative to the loading and unloading window are provided. The storage rack device is arranged in the heat-insulating storage body, at least one loading and unloading channel corresponds to the loading and unloading window, and the sealed door is provided with an observation window.

8. The sample low temperature storage device according to claim 7, characterized in that: It also includes a door-controlled lighting assembly, which includes a lighting lamp arranged on the storage rack assembly and an induction switch arranged on the inside of the retrieval window. The lighting lamp is electrically connected to the induction switch, and the induction switch senses the opening or closing of the sealed door to turn on or off the lighting lamp.

9. The sample low temperature storage device according to claim 7 or 8, characterized in that: It also includes a door lock assembly, which includes an electromagnetic lock arranged on the inner side of the access window and a door lock buckle arranged on the inner side of the sealed door. The door lock buckle is magnetically attracted to or separated from the electromagnetic lock to close or open the sealed door and the access window.

10. The sample low temperature storage device according to claim 7 or 8, characterized in that: A protrusion extending into the interior of the access window is provided on the inner side of the sealing door, and a circle of magnetic sealing strip is provided on the periphery of the protrusion. When the sealing door and the access window are closed, the magnetic sealing strip is clamped between the sealing door and the side panel; a door body buffer is provided on the inner side of the access window. When the sealing door and the access window are closed, the protrusion abuts against the door body buffer.

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