A vaccine refrigeration device and a method for preventing vaccines from freezing.

Abstract

This invention relates to the field of vaccine refrigeration technology, specifically disclosing a vaccine refrigeration device and a method for preventing vaccine freezing. The device includes a refrigeration box, a refrigeration mechanism, and a vaccine securing mechanism. The refrigeration mechanism includes a temperature-controlled layer inside the refrigeration box, with a cavity formed between the temperature-controlled layer and the inner wall of the refrigeration box designated as a refrigeration chamber, containing a cold source. The temperature-controlled layer has a hollow structure, with an air inlet pipe connected to one side and an exhaust pipe on the other side. Both the exhaust pipe and the air inlet pipe are equipped with intelligent valves, and the end of the exhaust pipe furthest from the temperature-controlled layer is connected to an exhaust fan. The vaccine securing mechanism includes multiple vaccine trays spaced apart from top to bottom within the temperature-controlled layer. Each vaccine tray contains a vaccine support plate, and the support plate has multiple sets of vaccine insertion holes spaced apart. This solution utilizes an exhaust fan to draw in high-temperature outside air when the temperature inside the refrigeration box is too low, raising the temperature inside the refrigeration box and thus preventing the vaccine from freezing.

Description

Technical Field

[0001] This invention relates to the field of vaccine refrigeration technology, specifically to a vaccine refrigeration device and a method for preventing vaccines from freezing. Background Technology

[0002] Vaccines are complex biological macromolecules, and their biological activity can gradually decrease over time at specific storage temperatures. Existing vaccine refrigerators can freeze and render vaccines ineffective when the temperature is too low, making it impossible to store vaccines for extended periods and reducing the device's practicality. Furthermore, vaccine refrigerators are easily damaged during transportation due to external influences, which can affect vaccine quality. Therefore, improvements are needed. Summary of the Invention

[0003] The purpose of this invention is to provide a vaccine refrigeration device and a method for preventing vaccines from freezing, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a vaccine refrigeration device, comprising a refrigerator, a refrigeration mechanism, and a vaccine fixing mechanism; the refrigeration mechanism includes a temperature control layer disposed inside the refrigerator, the cavity formed between the temperature control layer and the inner wall of the refrigerator being designated as a refrigeration chamber, and a cold source being disposed inside the refrigeration chamber; the temperature control layer is a hollow structure, one side of the temperature control layer is connected to an air inlet pipe, and the other side of the temperature control layer is provided with an exhaust pipe, both the exhaust pipe and the air inlet pipe being equipped with intelligent valves, and the end of the exhaust pipe away from the temperature control layer being connected to an exhaust fan; a temperature sensor is installed on the inner wall of the temperature control layer, the input end of the temperature sensor is connected to a controller, and the controller is connected to the control ends of the intelligent valves and the exhaust fan; the vaccine fixing mechanism includes multiple vaccine trays spaced apart from top to bottom inside the temperature control layer, each vaccine tray having a vaccine support plate inside, multiple sets of vaccine insertion holes spaced apart on the vaccine support plate, and a container slot being provided on the bottom wall of the vaccine tray corresponding to the position of the vaccine insertion hole, with a protective pad disposed inside the container slot.

[0005] As a preferred embodiment of the present invention, each of the vaccine trays is fixedly provided with connecting sliders on both the left and right sides. The inner side of the temperature control layer is provided with a limiting support column corresponding to the position of the connecting slider, which is slidably connected to the connecting slider. A limiting slide rod is fixedly provided inside the limiting support column, and a return spring is sleeved on the limiting slide rod between two adjacent connecting sliders.

[0006] As a preferred embodiment of the present invention, the connecting slider is provided with a limiting through hole at the position corresponding to the limiting slide rod, which is adapted to the structure of the limiting slide rod. The connecting slider is sleeved on the limiting slide rod through the limiting through hole and is slidably connected to the limiting slide rod up and down.

[0007] As a preferred embodiment of the present invention, the vaccine tray is provided with "L"-shaped positioning handles on both the left and right sides of the top of the tray, and the positioning handles are attached to the connecting slider by positioning plugs.

[0008] As a preferred embodiment of the present invention, the positioning handle is provided with a connecting hole, and the limiting slider is provided with a positioning hole at the position corresponding to the connecting hole. A positioning plug with a "T" shaped structure is installed inside the connecting hole, and the end of the positioning plug away from the connecting hole is inserted into the positioning hole.

[0009] As a preferred embodiment of the present invention, the top of the refrigerator is hinged to a sealing cover, the bottom of the sealing cover is provided with a horizontal pressure plate, the bottom wall of the horizontal pressure plate abuts against the top wall of the uppermost vaccine tray, and the top of the horizontal pressure plate is connected to a fixed support rod, which is fixedly connected to the inner side wall of the sealing cover.

[0010] As a preferred embodiment of the present invention, test tube frames are provided at the top of the protective pad and at both the upper and lower ends of the vaccine insertion hole. The test tube frames include a protective ring and a protective railing, and the protective railing is arranged in a circular array on the outer circumference of the protective ring.

[0011] As a preferred embodiment of the present invention, the bottom end of each protective pad is provided with a protective support rod, the bottom of the protective support rod is fixedly provided with a shock-absorbing spring, and the container tray is provided with a shock-absorbing groove adapted to the structure of the protective support rod at the position corresponding to the protective support rod, and the protective support rod is slidably disposed in the shock-absorbing groove.

[0012] This invention also discloses a method for preventing vaccine freezing using the aforementioned vaccine refrigeration device, comprising the following specific steps:

[0013] S1: Place the vaccine containers to be refrigerated on the vaccine tray, and fix multiple vaccine trays from bottom to top in a refrigerator with a cold source using positioning plugs, and then cover with a sealing lid.

[0014] S2: The temperature of the vaccine storage environment is monitored in real time by a temperature sensor, and a refrigeration temperature threshold is set in the temperature sensor.

[0015] S3: When the temperature detected by the temperature sensor exceeds the refrigeration temperature threshold, a signal is sent to the controller. The controller starts the exhaust fan and opens the smart valve. The exhaust fan draws high-temperature outside air into the temperature control layer through the air inlet pipe and then discharges low-temperature air through the air outlet pipe until the temperature meets the refrigeration temperature threshold. Then the exhaust fan and smart valve are turned off.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The present invention provides a vaccine refrigeration device and a method for preventing vaccine freezing. The present invention provides a temperature control layer inside the refrigeration device, and an air inlet pipe and an air outlet pipe are connected to the temperature control layer. The air inlet pipe is connected to an exhaust fan, so that when the temperature inside the refrigeration box is too low, the exhaust fan can draw in high-temperature outside air to raise the temperature inside the refrigeration box, thereby achieving the purpose of preventing vaccine freezing.

[0018] 2. The present invention provides a vaccine refrigeration device and a method for preventing vaccine freezing. This solution is provided with a shock-absorbing mechanism on the vaccine tray, which enables the vaccine container to achieve shock absorption, protection and stable transportation during the actual use of the refrigeration box. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall structure of the vaccine tray of the present invention;

[0021] Figure 3 This is a partial structural schematic diagram of the vaccine tray of the present invention;

[0022] Figure 4 This is a schematic diagram of the specific structure of the vaccine tray of the present invention.

[0023] In the diagram: 1. Refrigerated box; 2. Temperature control layer; 3. Cold source; 4. Air inlet duct; 5. Air outlet duct; 6. Intelligent valve; 7. Exhaust fan; 8. Temperature sensor; 9. Vaccine tray; 10. Vaccine support plate; 11. Vaccine insertion port; 12. Protective pad; 13. Connecting slider; 14. Limiting support column; 15. Limiting slide bar; 16. Return spring; 17. Positioning handle; 18. Positioning plug; 19. Connecting hole; 20. Positioning hole; 21. Sealing cap; 22. Horizontal pressure plate; 23. Fixed support rod; 24. Test tube partition frame; 241. Protective ring; 242. Protective railing; 25. Protective support rod; 26. Shock-absorbing spring. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] In the description of this invention, it should be noted that the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0026] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0027] The following is in conjunction with the appendix Figures 1-4 Any embodiment of the present invention will be described for further explanation:

[0028] Example 1: This invention provides a technical solution: a vaccine refrigeration device and a method for preventing vaccine freezing, comprising a refrigerator 1, a refrigeration mechanism, and a vaccine fixing mechanism; the refrigeration mechanism includes a temperature control layer 2 disposed inside the refrigerator 1, the cavity formed between the temperature control layer 2 and the inner wall of the refrigerator 1 is designated as a refrigeration chamber, and a cold source 3 is disposed inside the refrigeration chamber; the temperature control layer 2 has a hollow structure, one side of the temperature control layer 2 is connected to an air inlet pipe 4, and the other side of the temperature control layer 2 is provided with an exhaust pipe 5, both the exhaust pipe 5 and the air inlet pipe 4 are provided with intelligent valves 6, and the end of the exhaust pipe 5 away from the temperature control layer 2 is connected to an exhaust fan 7; a temperature sensor 8 is installed on the inner wall of the temperature control layer 2, the input end of the temperature sensor 8 is connected to a controller, and the controller is connected to the control ends of the intelligent valves 6 and the exhaust fan 7; the vaccine fixing mechanism includes multiple vaccine trays 9 installed at intervals from top to bottom inside the temperature control layer 2, the inside of the vaccine trays 9 is provided with vaccine support plates 10, and multiple sets of vaccine insertion holes 11 are arranged at intervals on the vaccine support plates 10.

[0029] This invention also discloses a method for preventing vaccine freezing using the aforementioned vaccine refrigeration device, comprising the following specific steps:

[0030] S1: Place the vaccine container to be refrigerated on the vaccine tray 10, fix multiple vaccine trays 9 from bottom to top in the refrigerator box 1 with cold source 3 through positioning plugs 18, and cover with sealing lid 21.

[0031] S2: The temperature of the vaccine storage environment is monitored in real time by temperature sensor 8, and a refrigeration temperature threshold is set in temperature sensor 8.

[0032] S3: When the temperature detected by the temperature sensor 8 exceeds the refrigeration temperature threshold, a signal is sent to the controller. The controller starts the exhaust fan 7 and opens the smart valve 6. The exhaust fan 7 draws high-temperature air from the outside into the temperature control layer 2 through the air inlet pipe 4, and then discharges low-temperature air through the exhaust pipe 5 until the temperature meets the refrigeration temperature threshold. Then the exhaust fan 7 and the smart valve 6 are turned off.

[0033] Example 2: A container slot is provided on the bottom wall of the vaccine tray 9 at the position corresponding to the vaccine insertion hole 11, and a protective pad 12 is provided inside the container slot.

[0034] As a preferred embodiment: each vaccine tray 9 is fixedly provided with connecting sliders 13 on both the left and right sides, and the inner side of the temperature control layer 2 is provided with a limiting support 14 that is slidably connected to the connecting slider 13 at the position corresponding to the connecting slider 13. A limiting slide rod 15 is fixedly provided inside the limiting support 14, and a return spring 16 is sleeved on the limiting slide rod 15 between two adjacent connecting sliders 13.

[0035] As a preferred embodiment: the connecting slider 13 is provided with a limiting through hole at the position corresponding to the limiting slider 15, which is adapted to the structure of the limiting slider 15. The connecting slider 13 is sleeved on the limiting slider 15 through the limiting through hole and is slidably connected to the limiting slider 15 up and down.

[0036] As a preferred embodiment: both the left and right sides of the top of the vaccine tray 9 are provided with "L"-shaped positioning handles 17, and the positioning handles 17 are attached to the connecting slider 13 through positioning plugs 18.

[0037] As a preferred embodiment: the positioning handle 17 is provided with a connection hole 19, and the limiting slider is provided with a positioning hole 20 at the position corresponding to the connection hole 19. A positioning plug 18 with a "T" structure is installed inside the connection hole 19, and the end of the positioning plug 18 away from the connection hole 19 is inserted into the positioning hole 20.

[0038] As a preferred embodiment: The top of the refrigerator box 1 is hinged to a sealing cover 21, and the bottom of the sealing cover 21 is provided with a horizontal pressure plate 22. The bottom wall of the horizontal pressure plate 22 abuts against the top wall of the vaccine tray 9 located on the uppermost layer. The top of the horizontal pressure plate 22 is connected to a fixed support rod 23, and the fixed support rod 23 is fixedly connected to the inner side wall of the sealing cover 21.

[0039] As a preferred embodiment: a test tube frame 24 is provided at the top of the protective pad 12 and at both the upper and lower ends of the vaccine insertion hole 11. The test tube frame 24 includes a protective ring 241 and a protective railing 242. The protective railing 242 is arranged in a ring array on the outer circumference of the protective ring 241.

[0040] As a preferred embodiment: a protective support rod 25 is provided at the bottom of each protective pad 12, and a shock-absorbing spring 26 is fixedly provided at the bottom of the protective support rod 25. A shock-absorbing groove adapted to the structure of the protective support rod 25 is provided at the position of the container tray corresponding to the protective support rod 25, and the protective support rod 25 is slidably disposed in the shock-absorbing groove.

[0041] In this embodiment: when the refrigerator box 1 shakes during actual transportation and handling, the protective pad 12 at the bottom of the vaccine container can directly reduce shock and protect the test tube under the action of the protective support rod 25 and the shock-absorbing spring 26.

[0042] Meanwhile, since the vaccine tray 9 is fixed to the connecting slider 13 through the cooperation between the positioning handles 17 and the positioning plug 18 on its left and right sides, and the connecting slider 13 is slidably set on the limiting slide bar 15 with the return spring 16, when the refrigerator 1 shakes, the vaccine tray 9 can achieve the purpose of shock absorption under the action of the return spring 16, thereby improving the stability of the test tube.

[0043] It is worth noting that the entire device is controlled by a controller. Since the controller is a common device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vaccine refrigeration device, characterized in that: The system includes a refrigerator (1), a refrigeration mechanism, and a vaccine fixing mechanism. The refrigeration mechanism includes a temperature control layer (2) installed inside the refrigerator (1). The cavity formed between the temperature control layer (2) and the inner wall of the refrigerator (1) is designated as a refrigeration chamber, and a cold source (3) is installed inside the refrigeration chamber. The temperature control layer (2) has a hollow structure. One side of the temperature control layer (2) is connected to an air inlet pipe (4), and the other side of the temperature control layer (2) is provided with an exhaust pipe (5). Both the exhaust pipe (5) and the air inlet pipe (4) are equipped with intelligent valves (6). The end of the exhaust pipe (5) away from the temperature control layer (2) is connected to an exhaust fan (7). A temperature sensor (8) is installed on the inner wall of the temperature control layer (2). The input end of the temperature sensor (8) is connected to a controller, and the controller is connected to the control ends of the intelligent valve (6) and the exhaust fan (7). The vaccine fixing mechanism includes multiple vaccine trays (9) installed at intervals from top to bottom inside the temperature control layer (2). The inside of the vaccine tray (9) is provided with a vaccine tray plate (10). Multiple sets of vaccine insertion holes (11) are provided at intervals on the vaccine tray plate (10). A container slot is provided on the bottom wall of the vaccine tray (9) at the position corresponding to the vaccine insertion hole (11). A protective pad (12) is provided inside the container slot. Each of the vaccine trays (9) is fixedly provided with connecting sliders (13) on both the left and right sides. The inner side of the temperature control layer (2) is provided with a limiting support (14) that is slidably connected to the connecting slider (13) at the position corresponding to the connecting slider (13). A limiting slide rod (15) is fixedly provided inside the limiting support rod (14). A reset spring (16) is sleeved on the limiting slide rod (15) between two adjacent connecting sliders (13). The connecting slider (13) has a limiting through hole at the position corresponding to the limiting slider (15) that is adapted to the structure of the limiting slider (15). The connecting slider (13) is sleeved on the limiting slider (15) through the limiting through hole and is slidably connected to the limiting slider (15) up and down. The vaccine tray (9) is provided with "L"-shaped positioning handles (17) on both the left and right sides of the top. The positioning handles (17) are attached to the connecting slider (13) by positioning plugs (18). The positioning handle (17) is provided with a connection hole (19), and the limiting slider is provided with a positioning hole (20) at the position corresponding to the connection hole (19). A positioning plug (18) with a "T" shape structure is installed inside the connection hole (19), and the end of the positioning plug (18) away from the connection hole (19) is inserted into the positioning hole (20). The top of the refrigerator (1) is hinged to a sealing cover (21), and a horizontal pressure plate (22) is provided at the bottom of the sealing cover (21). The bottom wall of the horizontal pressure plate (22) abuts against the top wall of the vaccine tray (9) located on the uppermost layer. A fixed support rod (23) is connected to the top of the horizontal pressure plate (22), and the fixed support rod (23) is fixedly connected to the inner wall of the sealing cover (21). The top of the protective pad (12) and the upper and lower ends of the vaccine insertion hole (11) are provided with test tube frames (24). The test tube frames (24) include a protective ring (241) and a protective railing (242). The protective railing (242) is arranged in a ring array on the outer circumference of the protective ring (241). The bottom of each protective pad (12) is provided with a protective support rod (25), and a shock-absorbing spring (26) is fixedly provided at the bottom of the protective support rod (25). A shock-absorbing groove adapted to the structure of the protective support rod (25) is opened at the position of the container tray corresponding to the protective support rod (25), and the protective support rod (25) is slidably disposed in the shock-absorbing groove.

2. The vaccine antifreezing method of a vaccine refrigeration device according to claim 1, characterized in that: The specific steps include the following: S1: Place the vaccine container to be refrigerated on the vaccine tray (10), fix multiple vaccine trays (9) from bottom to top in the refrigerator box (1) with cold source (3) through positioning plug (18), and cover with the sealing lid (21). S2: The temperature of the vaccine storage environment is monitored in real time by temperature sensor (8), and a cold storage temperature threshold is set in temperature sensor (8); S3: When the temperature detected by the temperature sensor (8) exceeds the refrigeration temperature threshold, a signal is sent to the controller. The controller starts the exhaust fan (7) and opens the smart valve (6). The exhaust fan (7) draws the high-temperature air from the outside into the temperature control layer (2) through the air inlet pipe (4) and then discharges the low-temperature air through the exhaust pipe (5) until the temperature meets the refrigeration temperature threshold. Then the exhaust fan (7) and the smart valve (6) are turned off.

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