A low-temperature storage box for preventive medicine vaccines

Abstract

This invention discloses a low-temperature storage box for preventive medical vaccines, relating to the field of storage box technology. The storage box includes a box body, a temperature control mechanism, a vacuuming mechanism, and a detection mechanism. The temperature control mechanism is rigidly connected to the box body, and the vacuuming mechanism is connected to the box body. The box body, vacuuming mechanism, and temperature control mechanism are all electrically connected to the detection mechanism. The box body includes an inner box assembly, an outer box assembly, a snap-fit ​​assembly, and an electrohumidification assembly. The inner box assembly and the outer box assembly are slidably connected. Multiple inner box assemblies are provided. The inner box assembly is snap-fitted to the snap-fit ​​assembly, and the snap-fit ​​assembly is rigidly connected to the outer box assembly. The electrohumidification assembly is rigidly connected to the outer box assembly and is connected to the inner box assembly. Temperature regulation is achieved using the temperature control mechanism, and a negative pressure environment is created by the vacuuming mechanism, thereby achieving a low-temperature vacuum storage effect.

Description

Technical Field

[0001] This invention relates to the field of storage box technology, specifically a low-temperature storage box for preventive medicine vaccines. Background Technology

[0002] With the rapid development of preventive medicine and the continuous improvement of the global public health system, the research and development and popularization of various new vaccines are showing a rapid growth trend. These biological agents have extremely stringent requirements for storage environments, typically requiring storage at extremely low and highly constant temperatures and in specific airtight environments to maintain the stability of their molecular structure and biological activity. Therefore, as a core node in cold chain storage, the technological advancement of vaccine cryogenic storage equipment directly affects the safety and effectiveness of medical vaccination.

[0003] Currently, most commercially available low-temperature vaccine storage boxes use traditional compressor refrigeration or single-element cooling systems. They lower the ambient temperature through an internal cold source and are supplemented by standard rubber sealing strips to isolate external moisture and heat. The internal layout is typically a simple multi-layered shelf or drawer-style structure, requiring medical staff to manually push and pull the boxes to access vaccines. To address the issue of condensation and freezing at extremely low temperatures, existing storage equipment generally employs passive electric heating wire defrosting technology, which involves periodically heating the doors or edges of the box to melt the frost that has accumulated.

[0004] However, the aforementioned existing technologies still have many obvious shortcomings in practical use: First, traditional purely manual pull-out inner boxes are difficult to control precisely when opening and closing, easily causing mechanical jamming or violent collisions, which can lead to the vibration and inactivation of sensitive vaccines stored inside. Furthermore, they lack a semi-automatic, smooth pop-out and push-in locking mechanism, resulting in low safety during retrieval. Second, when constructing independent vacuum storage spaces, existing equipment lacks a mechanism that can dynamically connect pipelines and achieve independent self-sealing with the movement of the inner box, causing the overall vacuum level to be disrupted with each access and easily leading to air leakage. Finally, traditional heating defrosting technology releases a large amount of heat into the box during defrosting, causing local temperature fluctuations (i.e., the thermal fluctuation problem), threatening vaccine safety. Moreover, existing equipment lacks heat-free anti-frost measures that actively inhibit moisture adhesion at the microscopic level (such as electronic polarization), making it difficult to achieve a balance between preventing condensation and maintaining a constant temperature. Therefore, those skilled in the art have provided a low-temperature storage box for preventive medicine vaccines to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a low-temperature storage box for preventive medicine vaccines to solve the problems mentioned in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: The storage box includes a box body, a temperature control mechanism, a vacuuming mechanism, and a detection mechanism. The temperature control mechanism and the box body are fastened together, the vacuuming mechanism and the box body are connected together, and the box body, the vacuuming mechanism, and the temperature control mechanism are all electrically connected to the detection mechanism. The enclosure structure includes an inner enclosure assembly, an outer enclosure assembly, a snap-fit ​​assembly, and an electrowetting assembly; The inner box assembly and the outer box assembly are slidably connected. The inner box assembly is provided in several parts. The inner box assembly and the snap-fit ​​assembly are snap-fitted together. The snap-fit ​​assembly and the outer box assembly are fastened together. The electro-humidification assembly and the outer box assembly are fastened together. The vacuuming mechanism is securely connected to the outer casing assembly, and the vacuuming mechanism is connected to the inner casing assembly.

[0007] By adopting the above technical solution, the storage box provides basic storage space through the box body structure, achieves precise temperature regulation through the temperature control mechanism, and creates a negative pressure environment inside the box body through the vacuuming mechanism. The detection mechanism monitors various data in real time. Several inner box components can slide inside the outer box components for easy storage and retrieval. After the inner box components are pushed in, they are stably locked in place by the snap-fit ​​components. At the same time, the electrohumidification component effectively prevents condensation and frost from forming on the outer box components. The vacuuming mechanism is directly connected to the inner box components to evacuate air, thereby achieving a low-temperature vacuum storage effect.

[0008] Furthermore, the outer casing assembly includes an outer casing door, an outer casing body, and a partition. The outer casing door and the outer casing body are hinged together, the partition is fastened to the outer casing, the inner casing assembly is slidably connected to the outer casing body, the inner casing assembly is slidably connected to the partition, and the area enclosed by the outer casing body and the partition is provided with a storage cavity.

[0009] By adopting the above technical solution, the outer box door is opened and closed by hinge, and the partition divides the internal space of the outer box into multiple storage cavities, so that the inner box components can slide in and out independently on the outer box and the partition. This not only optimizes the internal space layout, but also enables different vaccines to be stored separately in the storage cavities, avoiding cross-interference.

[0010] Furthermore, the inner box assembly includes an inner box, an inner box body, a handle, a first reset elastic element, a sliding block, and a reset post. The inner box and the inner box body are slidably connected. The reset post and the sliding block are both fastened to the handle. The reset post and the sliding block are both slidably connected to the inner box body. The first reset elastic element is fastened to the reset post and the first reset elastic element is fastened to the inner box body. The sliding block is snapped into a snap-fit ​​assembly, and the sliding block is provided with a snap-fit ​​protrusion.

[0011] By adopting the above technical solution, when the operator pulls the handle, the reset column and the sliding block slide on the inner box. The locking protrusion on the sliding block moves accordingly and releases or establishes a locking state with the locking component, thereby realizing the locking and releasing of the inner box in the inner box. After the handle is released, the first reset elastic element drives the reset column to quickly reset by its elastic force, thereby making the sliding block and the handle return to the initial position, thus improving the convenience of taking out the inner box component.

[0012] Furthermore, the inner box assembly also includes a pop-out column, a switching block, a control block, a snap-fit ​​block, a second elastic element, a third elastic element, and a fourth elastic element. The pop-out column is fastened to the inner box and slidably connected to the inner box. The switching block is fastened to the pop-out column, the pop-out column and the second elastic element are fastened to each other, the second elastic element is fastened to the inner box, the control block is slidably connected to the inner box, the inner box and the control block abut against each other, the third elastic element and the control block are fastened to each other, the third elastic element and the inner box are fastened to each other, the snap-fit ​​block abuts against the control block, the snap-fit ​​block abuts against the switching block, the snap-fit ​​block is slidably connected to the inner box, the snap-fit ​​block and the fourth elastic element are fastened to each other, and the inner box and the fourth elastic element are fastened to each other. The elastic coefficient of the second elastic element is greater than that of the fourth elastic element.

[0013] By adopting the above technical solution, when the latch is released, because the elastic coefficient of the second elastic element is greater than that of the fourth elastic element, the second elastic element releases its elastic force to push the pop-out column. The pop-out column causes the inner box to automatically pop out a certain distance. At the same time, the pop-out column causes the switching block to move and abut against the latching block, overcoming the elastic force of the fourth elastic element and causing the latching block to slide on the inner box. When the inner box is pushed in, the inner box abuts against the control block and overcomes the elastic force of the third elastic element. Through the mutual abutment and cooperation of the control block, the latching block and the switching block, the state is switched and the force is recharged, thereby realizing the semi-automatic and smooth pop-out and push-in locking function of the inner box.

[0014] Furthermore, the snap-fit ​​assembly includes a limiting block and a limiting elastic element. The limiting block is slidably connected to the inner box, the limiting block abuts against the inner box, the limiting block snaps against the sliding block, the limiting block abuts against the snap-fit ​​protrusion, the limiting elastic element is fastened to the limiting block, and the limiting elastic element is fastened to the partition.

[0015] By adopting the above technical solution, when the inner box assembly is pushed into place, the snap-fit ​​protrusion on the sliding block presses against and abuts the limiting block. The limiting block slides on the inner box and overcomes the elastic force of the limiting elastic element. When the snap-fit ​​protrusion passes the limiting block, the limiting elastic element uses its elastic force to push the limiting block to reset and snap into the sliding block. Relying on the cooperation of the limiting block and the limiting elastic element, the inner box assembly is securely locked in the storage cavity, preventing accidental slippage.

[0016] Furthermore, the electrowetting component includes an electron emission source and an on / off sensor. The on / off sensor and the electron emission source are electrically connected. A sealing area is provided between the outer door and the outer casing. The electron emission source and the outer casing are fastened together. The electron emission source is distributed in a ring array on the outer door. The electron emission source is used to reduce the adhesion of moisture on the surface of the sealing area by electric field polarization or electron bombardment. The on / off sensor and the outer casing are fastened together.

[0017] By adopting the above technical solution, the opening and closing sensor monitors the opening and closing status between the outer door and the outer casing in real time. When closed, the electron emission source distributed in a ring array on the outer door is activated, directly acting on the sealing area between the outer door and the outer casing. Through electric field polarization or electron bombardment, the adhesion of moisture on the surface of the sealing area is effectively reduced, thereby suppressing frost formation at the microscopic level and ensuring the airtightness of the sealing area and the normal opening and closing of the door. (This sentence is correct.)

[0018] Furthermore, the vacuuming mechanism includes a vacuum pump, a vacuum valve, and a switching assembly. The vacuum pump is fastened to the outer casing, the vacuum pump is connected to the vacuum valve, the switching assembly is connected to the vacuum valve, and the switching assembly is connected to the inner casing. The switching assembly includes an opening / closing block, an electromagnetic block, an opening / closing elastic element, a magnetic block, a connecting pipe, a docking block, and a vacuum tube. The opening / closing block and the connecting pipe are slidably connected, the opening / closing block and the magnetic block are fastened together, the electromagnetic block and the opening / closing elastic element are fastened together, the opening / closing elastic element and the magnetic block are fastened together, the electromagnetic block and the magnetic block are driven by magnetic pole repulsion, the connecting pipe and the inner box are connected, the vacuum tube and the connecting pipe are slidably connected, the vacuum tube and the vacuum valve are connected, the docking block and the vacuum tube are fastened together, and the docking block and the opening / closing block are driven by abutment.

[0019] By adopting the above technical solution, the electromagnetic block is energized and generates a repulsive magnetic force with the magnetic block, which causes the elastic force of the opening and closing element to push the magnetic block and the opening and closing block to slide on the connecting pipe, achieving a self-sealing effect. At the same time, by adjusting the electromagnetic block, the size of its opening and closing can be controlled. The vacuum pump works through the vacuum valve, vacuum tube and switching component. The connecting block abuts against the transmission opening and closing block and drives the slidingly connected vacuum tube to connect with the connecting pipe, thereby realizing the vacuuming operation of the inner box. Relying on the elastic force of the opening and closing element to reset, the pipeline is safely disconnected and switched, thus realizing the vacuuming operation when the inner box is put in.

[0020] Furthermore, the detection mechanism includes a pressure sensor, a light-emitting diode (LED), a gas pressure sensor, a first temperature sensor, and a second temperature sensor. The gas pressure sensor is securely connected to the inner box and is used to monitor changes in the internal gas pressure of the inner box in real time. The LED is securely connected to the outer box and electrically connected to the pressure sensor. The pressure sensor is securely connected to the partition and is located below the limiting block. The first temperature sensor is securely connected to the inner box and electrically connected to the temperature control mechanism. The second temperature sensor is securely connected to the outer box and electrically connected to the temperature control mechanism.

[0021] By adopting the above technical solution, the pressure sensor monitors the pressure changes inside the inner chamber in real time to ensure that the vacuum level meets the standard. Simultaneously, the first and second temperature sensors accurately detect the temperatures of the inner and outer chambers respectively and feed them back to the temperature control mechanism. When the pressure sensor located below the limit block is triggered by the limit block, it controls the LED on the outer chamber to light up, thus intuitively indicating to the operator that the inner chamber components are locked in place, achieving data detection and status visualization. (This sentence is error-free.)

[0022] Furthermore, the temperature control mechanism includes a heating component and a cooling component, with the heating component and the outer casing component being securely connected, and the cooling component and the inner casing being securely connected; The heating assembly includes a heating box, a heating circulation pump, and heating tubes. The heating box, heating circulation pump, and heating tubes are all securely connected to the outer casing, and the heating tubes are wrapped around the outer casing. Both the heating chamber and the heating circulation pump are electrically connected to the first temperature sensor; The cooling assembly includes a cooling chip, a cooling box, an inlet pipe, a cooling pipe, a cooling pump, and a control valve. The cooling chip is securely connected to the inner box, the cold end of the cooling chip is securely connected to the outer wall of the inner box, the cooling chip is connected to the inlet pipe, the cooling box, the cooling pump, and the cooling pipe are all securely connected to the outer box, the cooling pipe is connected to the control valve, the cooling pipe is connected to the inlet pipe, the cooling pump is connected to the control valve, and the cooling box is connected to the cooling pump.

[0023] By adopting the above technical solution, during cooling, the cooling element operates, with its cold end directly cooling the outer wall. Simultaneously, the cooling pump circulates the refrigerant from the cooling chamber through cooling pipes, control valves, and inlet pipes into the cooling element to improve cooling efficiency. When defrosting or temperature compensation is required, based on temperature feedback, the heating circulation pump pumps the heat transfer medium from the heating chamber into the heating pipes surrounding the outer casing for heating. Through the coordinated operation of the heating and cooling components, precise bidirectional temperature control between the inside and outside of the chamber is achieved. (This sentence is error-free.)

[0024] Compared with the prior art, the beneficial effects of the present invention are: The storage box of this invention achieves semi-automatic and smooth ejection and insertion locking of the inner box assembly. The inner box assembly consists of an inner box, an inner body, a handle, a sliding block, and multiple sets of elastic elements. During operation, pulling the handle causes the sliding block to slide, releasing its engagement with the limiting block. Because the elastic coefficient of the second elastic element, which is fixed to the ejection post, is greater than that of the fourth elastic element, the second elastic element releases its elastic force, pushing the ejection post and causing the inner box to eject smoothly a certain distance. When pushed in, the inner box abuts against the control block and compresses the third elastic element to store force, while the sliding block presses against the limiting block to re-engage. This mechanical linkage avoids vaccine vibration caused by manual forceful pulling, significantly improving the safety of retrieval.

[0025] This invention features dynamic pipeline connectivity and independent self-sealing vacuuming. The switching assembly consists of an opening / closing block, an electromagnetic block, a magnetic block, an opening / closing elastic element, a connecting pipe, and a vacuum tube. When the electromagnetic block is energized, it generates a repulsive magnetic force with the magnetic block, overcoming the elastic force of the elastic element and pushing the opening / closing block to slide on the connecting pipe to adjust the opening / closing degree. When the inner box assembly is pushed into place, the connecting block on the pipe physically abuts against the opening / closing block, causing the vacuum tube to slide precisely and connect with the connecting pipe, and the vacuum pump then evacuates the inner box. When the inner box assembly is pulled out, the elastic element automatically resets, disconnects, and seals the pipeline, eliminating the need for manual intervention and ensuring absolute independent vacuum in each storage chamber.

[0026] This invention employs a micro-electronic defrosting system combined with dual-path temperature control, solving the problem of heat fluctuations inherent in traditional defrosting methods. An electron emission source is fixedly mounted in a ring array on the outer door. When the door is closed, an activation sensor triggers the emission source to operate, reducing moisture adhesion to the sealed surface through electric field polarization and electron bombardment, maintaining the door's airtightness without heat release. The temperature control system includes cooling plates fixed to the inner casing and heating pipes in the outer casing. A cooling pump circulates refrigerant to the cooling plates for cooling, while a heating circulation pump pumps heat to the heating pipes for temperature compensation. This combination of underlying physical defrosting and coordinated internal and external cooling achieves a constant temperature for the entire unit. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the storage cavity structure of the present invention; Figure 3 This is a schematic diagram of the sliding block structure of the present invention; Figure 4 This is a schematic diagram of the snap-fit ​​assembly structure of the present invention; Figure 5 This is a schematic diagram of the inner box assembly structure of the present invention; Figure 6 This is a schematic diagram of the electron emission source structure of the present invention; Figure 7 This is a schematic diagram of the temperature control mechanism of the present invention; Figure 8 This is a schematic diagram of the cooling component structure of the present invention; Figure 9 This is a schematic diagram of the switching component structure of the present invention.

[0028] In the diagram: 1. Box body mechanism; 11. Inner box assembly; 111. Inner box box; 112. Inner box body; 113. Handle; 114. First reset elastic element; 115. Sliding block; 1151. Snap-fit ​​protrusion; 116. Reset post; 117. Pop-out post; 118. Switching block; 119. Control block; 1110. Snap-fit ​​block; 1111. Second elastic element; 1112. Third elastic element; 1113. Fourth elastic element; 12. Outer box assembly; 121. Outer box door; 1211. Sealing area; 122. Outer box body; 1221. Storage cavity; 123. Partition; 13. Snap-fit ​​assembly; 131. Limiting block; 132. Limiting elastic element; 14. Electrohumidification assembly; 141. Electro-emitting source; 142. Opening / closing mechanism. 1. Sensor; 2. Temperature control mechanism; 21. Heating assembly; 211. Heating box; 212. Heating circulation pump; 213. Heating tube; 22. Cooling assembly; 221. Cooling element; 222. Cooling box; 223. Inlet pipe; 224. Cooling tube; 225. Cooling pump; 226. Control valve; 3. Vacuuming mechanism; 31. Vacuum pump; 32. Vacuum valve; 33. Switching assembly; 331. Opening and closing block; 332. Electromagnetic block; 333. Opening and closing elastic element; 334. Magnetic block; 335. Connecting pipe; 336. Connecting block; 337. Vacuum tube; 4. Detection mechanism; 41. Pressure sensor; 42. Light-emitting diode; 43. Air pressure sensor; 44. First temperature sensor; 45. Second temperature sensor. Detailed Implementation

[0029] 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.

[0030] Please see Figures 1-9 As shown, the present invention provides a technical solution for a low-temperature storage box for preventive medicine vaccines: The storage box includes a box body mechanism 1, a temperature control mechanism 2, a vacuuming mechanism 3, and a detection mechanism 4. The temperature control mechanism 2 is fastened to the box body mechanism 1, the vacuuming mechanism 3 is connected to the box body mechanism 1, and the box body mechanism 1, the vacuuming mechanism 3, and the temperature control mechanism 2 are all electrically connected to the detection mechanism 4. The enclosure mechanism 1 includes an inner enclosure assembly 11, an outer enclosure assembly 12, a snap-fit ​​assembly 13, and an electrowetting assembly 14; The inner box assembly 11 and the outer box assembly 12 are slidably connected. The inner box assembly 11 is provided with several components. The inner box assembly 11 is snapped into the snap-fit ​​assembly 13. The snap-fit ​​assembly 13 is fastened to the outer box assembly 12. The electro-wetting assembly 14 is fastened to the outer box assembly 12. The vacuuming mechanism 3 is fastened to the outer casing assembly 12, and the vacuuming mechanism 3 is connected to the inner casing assembly 11.

[0031] By adopting the above technical solution, the storage box provides basic storage space through the box body mechanism 1, achieves precise temperature regulation through the temperature control mechanism 2, and creates a negative pressure environment inside the box body mechanism 1 through the vacuuming mechanism 3. The detection mechanism 4 monitors various data in real time. Several inner box components 11 can slide inside the outer box component 12 for easy storage and retrieval. After the inner box components 11 are pushed in, they are stably locked and fixed by the snap-fit ​​component 13. At the same time, the electrohumidification component 14 effectively prevents condensation and frost from forming on the outer box component 12. The vacuuming mechanism 3 is directly connected to the inner box components 11 to extract air, thereby achieving a low-temperature vacuum storage effect.

[0032] Furthermore, the outer casing assembly 12 includes an outer casing door 121, an outer casing body 122, and a partition 123. The outer casing door 121 and the outer casing body 122 are hinged together, the partition 123 is fastened to the outer casing, the inner casing assembly 11 is slidably connected to the outer casing body 122, the inner casing assembly 11 is slidably connected to the partition 123, and the area enclosed by the outer casing body 122 and the partition 123 is provided with a storage cavity 1221.

[0033] By adopting the above technical solution, the outer box door 121 achieves the opening and closing of the outer box 122 through a hinge, and the partition 123 divides the internal space of the outer box 122 into multiple storage cavities 1221, so that the inner box assembly 11 can slide independently in and out on the outer box 122 and the partition 123 respectively. This not only optimizes the internal space layout, but also realizes the separate storage of different vaccines in the storage cavities 1221, avoiding cross-interference.

[0034] Furthermore, the inner box assembly 11 includes an inner box 111, an inner box body 112, a handle 113, a first reset elastic element 114, a sliding block 115, and a reset post 116. The inner box 111 and the inner box body 112 are slidably connected. The reset post 116 and the sliding block 115 are both fastened to the handle 113. The reset post 116 and the sliding block 115 are both slidably connected to the inner box body 112. The first reset elastic element 114 is fastened to the reset post 116. The first reset elastic element 114 is fastened to the inner box body 112. The sliding block 115 is fastened to the snap-fit ​​assembly 13. The sliding block 115 is provided with a snap-fit ​​protrusion 1151.

[0035] By adopting the above technical solution, when the operator pulls the handle 113, the reset column 116 and the sliding block 115 slide on the inner box 112. The locking protrusion 1151 on the sliding block 115 moves accordingly and releases or establishes a locking state with the locking component 13, thereby realizing the locking and releasing of the inner box 111 in the inner box 112. After releasing the handle 113, the first reset elastic element 114 drives the reset column 116 to quickly reset by its elastic force, thereby making the sliding block 115 and the handle 113 return to their initial positions, thus improving the convenience of accessing the inner box component 11.

[0036] Furthermore, the inner box assembly 11 also includes a pop-out post 117, a switching block 118, a control block 119, a snap-fit ​​block 1110, a second elastic element 1111, a third elastic element 1112, and a fourth elastic element 1113. The pop-out post 117 is fastened to the inner box 111 and slidably connected to the inner box 112. The switching block 118 is fastened to the pop-out post 117. The pop-out post 117 is fastened to the second elastic element 1111 and fastened to the inner box 112. The control block 119 is slidably connected to the inner box 112. The inner box 111 and the control block 119 abut together; the third elastic element 1112 and the control block 119 are fastened together; the third elastic element 1112 and the inner box 112 are fastened together; the snap-fit ​​block 1110 and the control block 119 abut together; the snap-fit ​​block 1110 and the switching block 118 abut together; the snap-fit ​​block 1110 and the inner box 112 are slidably connected; the snap-fit ​​block 1110 and the fourth elastic element 1113 are fastened together; the inner box 112 and the fourth elastic element 1113 are fastened together; the elastic coefficient of the second elastic element 1111 is greater than the elastic coefficient of the fourth elastic element 1113.

[0037] By adopting the above technical solution, when the latch is released, since the elastic coefficient of the second elastic element 1111 is greater than that of the fourth elastic element 1113, the second elastic element 1111 releases its elastic force to push the pop-out column 117. The pop-out column 117 causes the inner box 111 to automatically pop out a certain distance. At the same time, the pop-out column 117 drives the switching block 118 to move and abut against the latching block 1110, overcoming the elastic force of the fourth elastic element 1113 and causing the latching block 1110 to slide on the inner box 112. When the inner box 111 is pushed in, the inner box 111 abuts against the control block 119 and overcomes the elastic force of the third elastic element 1112. Through the mutual abutment and cooperation of the control block 119, the latching block 1110 and the switching block 118, the state is switched and the force is recharged, thereby realizing the semi-automatic and smooth pop-out and push-in locking function of the inner box 111.

[0038] Furthermore, the snap-fit ​​assembly 13 includes a limiting block 131 and a limiting elastic element 132. The limiting block 131 is slidably connected to the inner housing 112, the limiting block 131 abuts against the inner housing 112, the limiting block 131 is snap-fitted with the sliding block 115, the limiting block 131 abuts against the snap-fit ​​protrusion 1151, the limiting elastic element 132 is fastened to the limiting block 131, and the limiting elastic element 132 is fastened to the partition 123.

[0039] By adopting the above technical solution, when the inner box assembly 11 is pushed into place, the snap-fit ​​protrusion 1151 on the sliding block 115 presses against the limiting block 131. The limiting block 131 slides on the inner box 112 and overcomes the elastic force of the limiting elastic member 132. When the snap-fit ​​protrusion 1151 passes the limiting block 131, the limiting elastic member 132 uses its elastic force to push the limiting block 131 back to its original position and snaps against the sliding block 115. Relying on the cooperation of the limiting block 131 and the limiting elastic member 132, the inner box assembly 11 is securely locked in the storage cavity 1221, preventing accidental slippage.

[0040] Furthermore, the electrowetting assembly 14 includes an electron emission source 141 and an opening / closing sensor 142. The opening / closing sensor 142 and the electron emission source 141 are electrically connected. A sealing area 1211 is provided between the outer door 121 and the outer casing 122. The electron emission source 141 and the outer casing 122 are fastened together. The electron emission source 141 is distributed in a ring array on the outer door 121. The electron emission source 141 is used to reduce the adhesion of moisture on the surface of the sealing area 1211 by electric field polarization or electron bombardment. The opening / closing sensor 142 and the outer casing 122 are fastened together.

[0041] By adopting the above technical solution, the opening and closing sensor 142 monitors the opening and closing status between the outer door 121 and the outer casing 122 in real time. When closed, the electron emission source 141 distributed in a ring array on the outer door 121 is activated and directly acts on the sealing area 1211 between the outer door 121 and the outer casing 122. Through electric field polarization or electron bombardment, the adhesion of moisture on the surface of the sealing area 1211 is effectively reduced, thereby suppressing the frosting phenomenon at the micro level and ensuring the airtightness of the sealing area 1211 and the normal opening and closing of the door.

[0042] Furthermore, the vacuuming mechanism 3 includes a vacuum pump 31, a vacuum valve 32, and a switching component 33. The vacuum pump 31 is fastened to the outer casing, the vacuum pump 31 is connected to the vacuum valve 32, the switching component 33 is connected to the vacuum valve 32, and the switching component 33 is connected to the inner casing 111. The switching component 33 includes an opening / closing block 331, an electromagnetic block 332, an opening / closing elastic element 333, a magnetic block 334, a connecting pipe 335, a docking block 336, and a vacuum tube 337. The opening / closing block 331 and the connecting pipe 335 are slidably connected, the opening / closing block 331 and the magnetic block 334 are fastened together, the electromagnetic block 332 and the opening / closing elastic element 333 are fastened together, the opening / closing elastic element 333 and the magnetic block 334 are fastened together, the electromagnetic block 332 and the magnetic block 334 are driven by magnetic pole repulsion, the connecting pipe 335 is connected to the inner box 111, the vacuum tube 337 and the connecting pipe 335 are slidably connected, the vacuum tube 337 is connected to the vacuum valve 32, the docking block 336 and the vacuum tube 337 are fastened together, and the docking block 336 and the opening / closing block 331 are driven by abutment.

[0043] By adopting the above technical solution, the electromagnetic block 332 is energized and generates a repulsive magnetic force with the magnetic block 334, so that the elastic force of the opening and closing elastic element 333 pushes the magnetic block 334 and the opening and closing block 331 to slide on the connecting pipe 335, thereby achieving a self-sealing effect. At the same time, by adjusting the electromagnetic block 332, its opening and closing size can be controlled. The vacuum pump 31 works through the vacuum valve 32, the vacuum tube 337 and the switching component 33. The connecting block 336 abuts against the transmission opening and closing block 331 and drives the slidingly connected vacuum tube 337 to connect with the connecting pipe 335, thereby realizing the vacuuming operation of the inner box 111. Relying on the elastic force of the opening and closing elastic element 333 to reset, the pipeline is safely disconnected and switched, thereby realizing the vacuuming operation when the inner box 111 is placed.

[0044] Furthermore, the detection mechanism 4 includes a pressure sensor 41, a light-emitting diode 42, a gas pressure sensor 43, a first temperature sensor 44, and a second temperature sensor 45. The gas pressure sensor 43 is fastened to the inner box 111 and is used to monitor the gas pressure change inside the inner box 111 in real time. The light-emitting diode is fastened to the outer box 122. The light-emitting diode 42 is electrically connected to the pressure sensor 41. The pressure sensor 41 is fastened to the partition 123 and is located below the limiting block 131. The first temperature sensor 44 is fastened to the inner box 112 and is electrically connected to the temperature control mechanism 2. The second temperature sensor 45 is fastened to the outer box 122 and is electrically connected to the temperature control mechanism 2.

[0045] By adopting the above technical solution, the air pressure sensor 43 monitors the air pressure change inside the inner box 111 in real time to ensure that the vacuum level meets the standard. At the same time, the first temperature sensor 44 and the second temperature sensor 45 accurately detect the temperature of the inner box 112 and the outer box 122 respectively and feed it back to the temperature control mechanism 2. When the pressure sensor 41 located below the limit block 131 is triggered by the limit block 131, the pressure sensor 41 controls the light-emitting diode on the outer box 122 to light up, thereby intuitively indicating to the operator that the inner box assembly 11 has been locked in place, realizing data detection and status visualization prompts.

[0046] Furthermore, the temperature control mechanism 2 includes a heating component 21 and a cooling component 22. The heating component 21 is fastened to the outer casing component 12, and the cooling component 22 is fastened to the inner casing 112. The heating assembly 21 includes a heating box 211, a heating circulation pump 212, and a heating tube 213. The heating box 211, the heating circulation pump 212, and the heating tube 213 are all fastened to the outer casing 122, and the heating tube 213 surrounds the outer casing 122. Both the heating chamber 211 and the heating circulation pump 212 are electrically connected to the first temperature sensor 44; The cooling assembly 22 includes a cooling chip 221, a cooling box 222, an inlet pipe 223, a cooling pipe 224, a cooling pump 225, and a control valve 226. The cooling chip 221 is fastened to the inner box 112, and the cold end of the cooling chip 221 is fastened to the outer wall of the inner box 112. The cooling chip 221 is connected to the inlet pipe 223. The cooling box 222, the cooling pump 225, and the cooling pipe 224 are all fastened to the outer box 122. The cooling pipe 224 is connected to the control valve 226, the cooling pipe 224 is connected to the inlet pipe 223, the cooling pump 225 is connected to the control valve 226, and the cooling box 222 is connected to the cooling pump 225.

[0047] By adopting the above technical solution, during cooling, the cooling chip 221 works, and its cold end directly cools the outer wall. At the same time, the cooling pump 225 circulates the refrigerant in the cooling box 222 into the cooling chip 221 through the cooling pipe 224, control valve 226 and inlet pipe 223 to improve the cooling efficiency. When defrosting or temperature compensation is required, according to the temperature feedback, the heating circulation pump 212 pumps the heat medium in the heating box 211 into the heating pipe 213 surrounding the outer box 122 for heating. Through the coordinated work of the heating component 21 and the cooling component 22, precise bidirectional control of the temperature inside and outside the box is achieved.

[0048] Working principle of the invention: The inner box assembly 11 consists of an inner box 111, an inner box body 112, a handle 113, a sliding block 115, and multiple sets of elastic elements. During operation, pulling the handle 113 causes the sliding block 115 to slide, releasing its engagement with the limiting block 131. Because the elastic coefficient of the second elastic element 1111, which is fixed to the ejector post 117, is greater than that of the fourth elastic element 1113, the second elastic element 1111 releases its elastic force, pushing the ejector post 117 and causing the inner box 111 to smoothly eject a certain distance. When pushed in, the inner box 111 abuts against the control block 119 and compresses the third elastic element 1112 to store force, while the sliding block 115 presses against the limiting block 131 to re-engage. This mechanical linkage avoids vaccine vibration caused by manual forceful pulling, significantly improving the safety of vaccine retrieval. The switching assembly 33 consists of an opening / closing block 331, an electromagnetic block 332, a magnetic block 334, an opening / closing elastic element 333, a connecting pipe 335, and a vacuum tube 337. When the electromagnetic block 332 is energized, it generates a repulsive magnetic force with the magnetic block 334, overcoming the elastic force of the elastic element and pushing the opening and closing block 331 to slide on the connecting pipe 335 to adjust the opening and closing degree. When the inner box assembly 11 is pushed into place, the connecting block 336 on the pipe physically abuts against the opening and closing block 331, causing the vacuum tube 337 to slide precisely and connect with the connecting pipe 335, and the vacuum pump 31 then evacuates the inner box 111. When the inner box assembly 11 is pulled out, the elastic element automatically resets, disconnects and seals the pipeline, eliminating the need for manual intervention and ensuring the absolute independent vacuum of each storage cavity 1221. This invention uses micro-electronic anti-frost combined with dual-path temperature control, solving the problem of heat fluctuation in traditional defrosting. An electron emission source 141 is fixedly connected to the outer box door 121 in a ring array. When the door is closed, the opening and closing sensor 142 triggers the emission source to work, reducing the adhesion of moisture on the surface of the sealing area 1211 through electric field polarization and electron bombardment, maintaining the airtightness of the door without heat release. The temperature control system includes a cooling plate 221 fixed to the inner casing 112 and a heating tube 213 fixed to the outer casing 122. The cooling pump 225 circulates refrigerant into the cooling plate 221 to cool it down, while the heating circulation pump 212 pumps heat medium into the heating tube 213 for temperature compensation. The constant temperature of the whole machine is achieved by physical frost prevention at the bottom layer and coordinated internal and external cooling.

[0049] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A low-temperature storage box for preventive medicine vaccines, characterized in that: The storage box includes a box body mechanism (1), a temperature control mechanism (2), a vacuuming mechanism (3) and a detection mechanism (4). The temperature control mechanism (2) and the box body mechanism (1) are fastened together. The vacuuming mechanism (3) and the box body mechanism (1) are connected together. The box body mechanism (1), the vacuuming mechanism (3) and the temperature control mechanism (2) are all electrically connected to the detection mechanism (4). The enclosure mechanism (1) includes an inner enclosure assembly (11), an outer enclosure assembly (12), a snap-fit ​​assembly (13), and an electrohumidification assembly (14). The inner box assembly (11) and the outer box assembly (12) are slidably connected. The inner box assembly (11) is provided with a plurality of components. The inner box assembly (11) and the snap-fit ​​assembly (13) are snap-fitted together. The snap-fit ​​assembly (13) and the outer box assembly (12) are fastened together. The electrohumidification assembly (14) and the outer box assembly (12) are fastened together. The vacuuming mechanism (3) and the outer casing assembly (12) are fastened together, and the vacuuming mechanism (3) and the inner casing assembly (11) are connected.

2. The low-temperature storage box for preventive medicine vaccines according to claim 1, characterized in that: The outer casing assembly (12) includes an outer casing door (121), an outer casing body (122), and a partition (123). The outer casing door (121) and the outer casing body (122) are hinged together, and the partition (123) and the outer casing body (122) are fastened together. The inner casing assembly (11) and the outer casing body (122) are slidably connected, and the inner casing assembly (11) and the partition (123) are slidably connected. The area enclosed by the outer casing body (122) and the partition (123) is provided with a storage cavity (1221).

3. The low-temperature storage box for preventive medicine vaccines according to claim 2, characterized in that: The inner box assembly (11) includes an inner box (111), an inner box body (112), a handle (113), a first reset elastic element (114), a sliding block (115), and a reset post (116). The inner box (111) and the inner box body (112) are slidably connected. The reset post (116) and the sliding block (115) are both fastened to the handle (113). The reset post (116) and the sliding block (115) are both slidably connected to the inner box body (112). The first reset elastic element (114) and the reset post (116) are fastened together. The first reset elastic element (114) and the inner box body (112) are fastened together. The sliding block (115) is fastened to the snap-fit ​​assembly (13). The sliding block (115) is provided with a snap-fit ​​protrusion (1151).

4. A low-temperature storage box for preventive medicine vaccines according to claim 3, characterized in that: The inner box assembly (11) further includes a pop-out post (117), a switching block (118), a control block (119), a snap-fit ​​block (1110), a second elastic element (1111), a third elastic element (1112), and a fourth elastic element (1113). The pop-out post (117) is fastened to the inner box (111), and the pop-out post (117) is slidably connected to the inner box (112). The switching block (118) is fastened to the pop-out post (117), the pop-out post (117) is fastened to the second elastic element (1111), the second elastic element (1111) is fastened to the inner box (112), and the control block (119) is slidably connected to the inner box (112). The inner box (111) and the control block (119) abut against each other, the third elastic element (1112) and the control block (119) are fastened together, the third elastic element (1112) and the inner box (112) are fastened together, the snap-fit ​​block (1110) and the control block (119) abut against each other, the snap-fit ​​block (1110) and the switching block (118) abut against each other, the snap-fit ​​block (1110) and the inner box (112) are slidably connected, the snap-fit ​​block (1110) and the fourth elastic element (1113) are fastened together, the inner box (112) and the fourth elastic element (1113) are fastened together, and the elastic coefficient of the second elastic element (1111) is greater than that of the fourth elastic element (1113).

5. A low-temperature storage box for preventive medicine vaccines according to claim 4, characterized in that: The snap-fit ​​assembly (13) includes a limiting block (131) and a limiting elastic element (132). The limiting block (131) is slidably connected to the inner box (112), the limiting block (131) abuts against the inner box (112), the limiting block (131) snaps against the sliding block (115), the limiting block (131) abuts against the snap-fit ​​protrusion (1151), the limiting elastic element (132) is fastened to the limiting block (131), and the limiting elastic element (132) is fastened to the partition (123).

6. A low-temperature storage box for preventive medicine vaccines according to claim 5, characterized in that: The electrowetting component (14) includes an electron emission source (141) and an opening / closing sensor (142). The opening / closing sensor (142) and the electron emission source (141) are electrically connected. A sealing area (1211) is provided between the outer door (121) and the outer casing (122). The electron emission source (141) and the outer casing (122) are fastened together. The electron emission source (141) is arranged in a ring array on the outer door (121). The electron emission source (141) is used to reduce the moisture adhesion on the surface of the sealing area (1211) by electric field polarization or electron bombardment. The opening / closing sensor (142) and the outer casing (122) are fastened together.

7. A low-temperature storage box for preventive medicine vaccines according to claim 6, characterized in that: The vacuum pumping mechanism (3) includes a vacuum pump (31), a vacuum valve (32) and a switching component (33). The vacuum pump (31) is fastened to the outer casing, the vacuum pump (31) is connected to the vacuum valve (32), the switching component (33) is connected to the vacuum valve (32), and the switching component (33) is connected to the inner casing (111). The switching assembly (33) includes an opening / closing block (331), an electromagnetic block (332), an opening / closing elastic element (333), a magnetic block (334), a connecting pipe (335), a docking block (336), and a vacuum tube (337). The opening / closing block (331) and the connecting pipe (335) are slidably connected. The opening / closing block (331) and the magnetic block (334) are fastened together. The electromagnetic block (332) and the opening / closing elastic element (333) are fastened together. The opening / closing elastic element (334) is... The electromagnetic block (332) and the magnetic block (334) are fastened together. The electromagnetic block (332) and the magnetic block (334) are driven by repulsion of their magnetic poles. The connecting pipe (335) and the inner box (111) are connected. The vacuum tube (337) and the connecting pipe (335) are slidably connected. The vacuum tube (337) and the vacuum valve (32) are connected. The docking block (336) and the vacuum tube (337) are fastened together. The docking block (336) and the opening and closing block (331) are driven by abutment.

8. A low-temperature storage box for preventive medicine vaccines according to claim 7, characterized in that: The detection mechanism (4) includes a pressure sensor (41), a light-emitting diode (42), a gas pressure sensor (43), a first temperature sensor (44), and a second temperature sensor (45). The gas pressure sensor (43) is fastened to the inner box (111) and is used to monitor the gas pressure change inside the inner box (111) in real time. The light-emitting diode (42) is fastened to the outer box (122). The light-emitting diode (42) is electrically connected to the pressure sensor (41). The pressure sensor (41) is fastened to the partition (123). The pressure sensor (41) is located below the limiting block (131). The first temperature sensor (44) is fastened to the inner box (112). The first temperature sensor (44) is electrically connected to the temperature control mechanism (2). The second temperature sensor (45) is fastened to the outer box (122). The second temperature sensor (45) is electrically connected to the temperature control mechanism (2).

9. A low-temperature storage box for preventive medicine vaccines according to claim 8, characterized in that: The temperature control mechanism (2) includes a heating component (21) and a cooling component (22). The heating component (21) is fastened to the outer casing (122), and the cooling component (22) is fastened to the inner casing (112). The heating assembly (21) includes a heating box (211), a heating circulation pump (212), and a heating tube (213). The heating box (211), the heating circulation pump (212), and the heating tube (213) are all securely connected to the outer casing (122), and the heating tube (213) surrounds the outer casing (122). The heating box (211) and the heating circulation pump (212) are both electrically connected to the first temperature sensor (44); The cooling assembly (22) includes a cooling chip (221), a cooling box (222), an inlet pipe (223), a cooling pipe (224), a cooling pump (225), and a control valve (226). The cooling chip (221) is fastened to the inner box (112). The cold end of the cooling chip (221) is fastened to the outer wall of the inner box (112). The cooling chip (221) is connected to the inlet pipe (223). The cooling box (222), the cooling pump (225), and the cooling pipe (224) are all fastened to the outer box (122). The cooling pipe (224) is connected to the control valve (226). The cooling pipe (224) is connected to the inlet pipe (223). The cooling pump (225) is connected to the control valve (226). The cooling box (222) is connected to the cooling pump (225).

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