Integrated automatic access gas phase liquid nitrogen tank device

Abstract

The application discloses an integrated automatic access gas-phase liquid nitrogen tank device, and relates to the technical field of biological sample storage. The application discloses an integrated automatic access gas-phase liquid nitrogen tank device, and relates to the technical field of biological sample storage. The application discloses an integrated automatic access gas-phase liquid nitrogen tank device, and relates to the technical field of biological sample storage. The application discloses an integrated automatic access gas-phase liquid nitrogen tank device, and relates to the technical field of biological sample storage. The application discloses an integrated automatic access gas-phase liquid nitrogen tank device, and relates to the technical field of biological sample storage. The application discloses an integrated automatic access gas-phase liquid nitrogen tank device, and relates to the technical field of biological sample storage. The application discloses an integrated automatic access gas-phase liquid nitrogen tank device, and relates to the technical field of biological sample storage. The application discloses an integrated automatic access gas-phase liquid nitrogen tank device, and relates to the technical field of biological sample storage. The application discloses an integrated automatic access gas-phase liquid nitrogen tank device, and relates to the technical field of biological sample storage. The application discloses an integrated automatic access gas-phase liquid nitrogen tank device, and relates to the technical field of biological sample storage. The application discloses an integrated automatic access gas-phase liquid nitrogen tank device, and relates to the technical field of biological sample storage. The application discloses an integrated automatic access gas-phase liquid nitrogen tank device, and relates to the technical The application discloses an integrated automatic access gas-phase liquid nitrogen tank device, and relates to the

Description

Technical Field

[0001] This application relates to the field of biological sample storage technology, and in particular to an integrated automatic storage and retrieval device for gas phase liquid nitrogen tanks. Background Technology

[0002] Liquid nitrogen tanks are core equipment for the cryogenic storage of biological samples, and are widely used in life sciences, medical research, and biobanks. By filling the tank with liquid nitrogen (-196°C), liquid nitrogen tanks provide a long-term, stable, ultra-low temperature preservation environment for biological samples.

[0003] With the continuous expansion of biobanks, higher demands are placed on the storage and retrieval efficiency of liquid nitrogen tanks. To achieve automated storage and retrieval, various improvement schemes have emerged in existing technologies. Chinese utility model patent CN215708040U discloses a liquid nitrogen tank body that incorporates a rotatable storage rack within the tank body, with a box holder placed inside. A rotating mechanism drives the storage rack to rotate, aligning the target storage compartment with the lid at the top of the tank body. A box holder lifting and clamping mechanism then retrieves the box holder from the lid. This scheme achieves automated retrieval and placement of the box holder through the cooperation of the rotating and lifting clamping mechanisms, thus improving storage and retrieval efficiency.

[0004] However, combining the aforementioned tank structure with the retrieval and placement structure presents the following technical problems: First, during the rotation start-up and stop of the storage rack, the boxes stored within are subjected to centrifugal and inertial forces. The boxes are prone to slight displacement or skew during repeated rotation and stop processes, causing their posture to deviate from the preset position. Second, the storage rack rotates by a rotating mechanism that drives a rotating shaft, typically using a motor coupled with a synchronous belt drive. Over long-term use, synchronous belt drives experience elastic deformation and accumulated errors, leading to a certain alignment deviation between the centerline of the target storage compartment and the centerline of the lid.

[0005] When the lifting and clamping mechanism grasps the box holder, there may be angular and positional deviations between the top of the box holder and the clamping parts of the lifting and clamping mechanism. As the lifting and clamping mechanism moves the box holder upwards, the box holder with deviations is prone to being obstructed from being pushed out or even jammed, and in severe cases, it may even damage the sample tubes inside the sample box. Summary of the Invention

[0006] To facilitate the smooth removal of the container rack, this application provides an integrated automatic storage and retrieval device for gaseous liquid nitrogen tanks.

[0007] The integrated automatic storage and retrieval device for gaseous liquid nitrogen tanks provided in this application adopts the following technical solution: An integrated automatic storage and retrieval device for gaseous liquid nitrogen includes a tank body with an opening at the top and a lid rotatably mounted on the opening. A first rotating mechanism on the tank body drives the lid to open and close automatically. A storage rack is disposed within the tank body, with a rotating shaft rotatably mounted on the tank body. The storage rack is fixedly connected to the bottom end of the rotating shaft. A second rotating mechanism on the tank body drives the rotating shaft to reciprocate. Multiple storage compartments are evenly spaced along the circumference of the tank body within the storage rack, and each storage compartment contains a shelf. A first positioning mechanism on the tank body limits the rotation angle of the rotating shaft and positions the shelf directly below the opening. A second rotating mechanism is also provided within the storage rack. The positioning mechanism includes a driving component and multiple clamping components. The driving component is located below the can opening, and the clamping components are respectively located on the outside of multiple storage compartments. When the storage rack rotates the box rack to directly below the can opening, the driving component connects to the clamping components on the outside of the box rack. A lifting clamping mechanism is located above the can and is used for automatically picking up and placing the box rack. The clamping end of the lifting clamping mechanism is equipped with a trigger. When the clamping end of the lifting clamping mechanism descends and extends into the can opening, the trigger connects to the driving component and drives the clamping components to clamp and position the box rack. When the clamping end of the lifting clamping mechanism clamps the box rack, the trigger disconnects from the driving component, and the clamping components release their clamping of the box rack.

[0008] By adopting the above technical solution, when the box rack needs to be removed, the first rotating mechanism drives the can lid to rotate and open, and the second rotating mechanism drives the storage rack to rotate through the rotating shaft. The storage rack drives the designated box rack to rotate below the can opening. At this time, the first positioning mechanism positions the rotation angle of the storage rack through the rotating shaft, so that the box rack can be accurately positioned directly below the can opening. The driving component is connected to the clamping component corresponding to this box rack. Then, the clamping end of the lifting clamping mechanism drives the trigger to descend and extend into the can opening. The trigger is connected to the driving component and drives the clamping component to clamp and position the box rack, so that the box rack is accurately positioned directly below the clamping end of the lifting clamping mechanism. When the clamping end of the lifting clamping mechanism clamps the box rack, the trigger is disconnected from the driving component, and then the clamping component releases the clamp on the box rack, so that the box rack can be smoothly removed.

[0009] Preferably, the first positioning mechanism includes a positioning ring, a positioning seat, a positioning pin, and a first elastic element. The positioning ring is fixedly mounted on a rotating shaft. Multiple positioning grooves are evenly spaced along the outer periphery of the positioning ring, and each of the multiple positioning grooves corresponds to a multiple storage compartment. The positioning seat is fixedly mounted on the tank body. The positioning pin is slidably mounted inside the positioning seat. The first elastic element is mounted inside the positioning seat and is used to push the positioning pin to slide into the positioning groove.

[0010] By adopting the above technical solution, when the rotating shaft drives the box rack on the storage rack to rotate to below the can opening, the rotating shaft simultaneously drives the positioning ring to move, so that the corresponding positioning groove on the positioning ring rotates to the positioning pin. At this time, the first elastic element in the positioning seat pushes the positioning groove to move, and the positioning pin is adapted to slide into the positioning groove, thereby enabling precise positioning of the rotation angle of the storage rack, so that the box rack can be accurately positioned below the can opening.

[0011] Preferably, the rotating shaft includes a first shaft, a second shaft, a limiting block, and an elastic reset member. The first shaft is rotatably disposed inside the tank. The storage rack is disposed at the bottom end of the first shaft. The second shaft is coaxially rotatably disposed at the top end of the first shaft. The second shaft is connected to a second rotating mechanism. The limiting block is fixedly disposed at the bottom end of the second shaft. A limiting groove is formed at the top end of the first shaft. The limiting groove is arc-shaped along the circumference of the first shaft. The limiting block is slidably disposed within the limiting groove. The elastic reset member is disposed at the rotatable connection between the first shaft and the second shaft and is used to drive the first shaft to rotate and reset. When the first shaft is in the initial reset state, the limiting block is located in the middle of the limiting groove.

[0012] By adopting the above technical solution, the second rotating mechanism drives the second shaft to rotate, and the second shaft drives the limiting block to move within the limiting groove. When the limiting block moves to the end of the limiting groove, the limiting block drives the first shaft to rotate, and the first shaft then drives the storage rack and the positioning ring to rotate. When the positioning ring drives the positioning groove to move close to the positioning pin, the second shaft stops rotating. At this time, the elastic reset component drives the first shaft to rotate and reset, so that the first shaft continues to rotate at a small angle. Then the positioning pin is inserted into the positioning groove, so that the rotation angle of the storage rack can be accurately positioned.

[0013] Preferably, multiple sets of push plates are fixedly arranged at equal intervals on the outer side wall of the second shaft. The multiple sets of push plates correspond one-to-one with multiple positioning slots. Each set of push plates consists of two push plates spaced apart, and the two push plates are located on both sides of the positioning slot. The push plates move to contact the positioning pin and push the positioning pin to move away from the second shaft.

[0014] By adopting the above technical solution, when it is necessary to unlock the first shaft and continue to rotate the storage rack, the second rotating mechanism continues to drive the second shaft to rotate. At this time, the positioning pin positions the first shaft through the positioning groove, so that the first shaft does not rotate. The second shaft drives the push plate to rotate, and the push plate pushes the positioning pin to move away from the second shaft, so that the end of the positioning pin moves out of the positioning groove. Then, when the second shaft drives the limit block to move to the end of the limit groove, the second shaft can drive the storage rack to rotate smoothly through the first shaft.

[0015] Preferably, the driving component includes a first lifting frame, multiple guide rods, transmission gears, and hooks. The multiple guide rods are fixedly disposed inside the tank body and located around the tank opening. The first lifting frame is slidably disposed on the multiple guide rods. The multiple hooks are fixedly disposed at the bottom of the first lifting frame and connected to the clamping component. The multiple transmission gears are rotatably disposed on the inner wall of the tank body and located inside the first lifting frame. The inner wall of the first lifting frame is provided with multiple driven racks. The multiple transmission gears respectively mesh with the multiple driven racks. The multiple triggers mesh with the multiple transmission gears.

[0016] By adopting the above technical solution, the clamping end of the lifting clamping mechanism drives the trigger to descend and extend into the can opening. Multiple triggers mesh with multiple transmission gears and drive the transmission gears to rotate. The transmission gears drive the first lifting frame to rise and move through the driven rack. The first lifting frame then drives the clamping component to clamp and position the box frame through multiple hooks.

[0017] Preferably, the clamping component includes a second lifting frame, multiple hanging rods, push blocks, and clamping blocks. The second lifting frame is slidably mounted on the storage rack in a vertical direction and located on the outer periphery of the box rack. The multiple hanging rods are fixedly connected to the second lifting frame, and the top ends of the multiple hanging rods are connected to multiple hooks. The second lifting frame has multiple lifting slots. The multiple clamping blocks are slidably mounted in the storage rack and pass through the lifting slots. The multiple push blocks are fixedly mounted in the multiple lifting slots. Each clamping block has an inclined push groove. The multiple push blocks are respectively located in the multiple push grooves. When the second lifting frame moves upward, the push blocks drive the clamping blocks to move and abut against the box rack through the push grooves.

[0018] By adopting the above technical solution, when the storage rack drives the designated box rack to rotate below the can opening, the storage rack drives the hanging rod to connect with the hook. When the first lifting frame drives the hook to move upward, the hook drives the second lifting frame to move upward through the hanging rod. The second lifting frame drives multiple push blocks to move upward. The push blocks move in the push groove and drive the clamping blocks to move towards the box rack. The multiple clamping blocks move synchronously, so that the box rack can be clamped and positioned directly below the can opening.

[0019] Preferably, each storage rack has a sliding lifting plate at the bottom of each storage compartment, the box rack is placed on the lifting plate, the storage rack has a second elastic element at the bottom of the lifting plate, the lifting plate has a through hole in the middle, a supporting hemisphere is fixedly installed at the bottom middle of the storage compartment, the supporting hemisphere is located in the through hole of the lifting plate, the clamping block is located above the bottom lifting plate of the storage compartment, the end of the bottom wall of the clamping block is chamfered, and the chamfer abuts against the top wall of the lifting plate.

[0020] By adopting the above technical solution, when the box rack is placed in the storage compartment, the bottom of the box rack abuts against the lifting plate. When the clamping block moves to clamp the box rack, the chamfer at the end of the clamping block first pushes the lifting plate to move downward. At this time, the top of the supporting hemisphere abuts against the middle of the bottom of the box rack, changing the surface contact of the lifting plate to the point contact of the supporting hemisphere, reducing the friction of the box rack, thus making it easier for the clamping block to drive the box rack to move, position and clamp.

[0021] Preferably, the lifting and clamping mechanism includes a vertical moving module and a clamping member. The vertical moving module is disposed on the tank body, the clamping member is disposed on the lifting end of the vertical moving module, and the triggering member is disposed on the outside of the clamping member.

[0022] By adopting the above technical solution, the vertical moving module drives the clamping component to move in the vertical direction. When the clamping component moves, it will drive the triggering component to move synchronously. The clamping component can clamp the box frame, which makes it easier to grab the box frame.

[0023] Preferably, the second rotating mechanism includes a second driving member and a timing belt. The second driving member is disposed on the top of the tank, and the timing belt is sleeved on the driving end of the second driving member and the rotating shaft.

[0024] By adopting the above technical solution, the second driving component drives the synchronous belt to rotate, and the synchronous belt then drives the rotating shaft to rotate, which in turn drives the storage rack to rotate.

[0025] Preferably, the first rotating mechanism includes a first driving member, and the can lid is disposed at the driving end of the first driving member.

[0026] By adopting the above technical solution, the first driving component drives the can lid to rotate, so that the can lid can automatically close or open the can opening.

[0027] In summary, this application includes at least one of the following beneficial technical effects: 1. Utilizing a first positioning mechanism and a second positioning mechanism, when a box rack needs to be removed, the first rotating mechanism drives the can lid to rotate and open, and the second rotating mechanism drives the storage rack to rotate via a rotating shaft. The storage rack drives the designated box rack to rotate below the can opening. At this time, the first positioning mechanism positions the rotation angle of the storage rack via the rotating shaft, so that the box rack can be accurately positioned directly below the can opening. The driving component is connected to the clamping component corresponding to this box rack. Subsequently, the clamping end of the lifting clamping mechanism drives the trigger to descend and extend into the can opening. The trigger is connected to the driving component and drives the clamping component to clamp and position the box rack, so that the box rack is accurately positioned directly below the clamping end of the lifting clamping mechanism. When the clamping end of the lifting clamping mechanism clamps the box rack, the trigger is disconnected from the driving component, and then the clamping component releases its clamping of the box rack, thereby allowing the box rack to be removed smoothly. 2. With the help of a rotating shaft, the second rotating mechanism drives the second shaft to rotate. The second shaft drives the limiting block to move within the limiting groove. When the limiting block moves to the end of the limiting groove, the limiting block drives the first shaft to rotate. The first shaft then drives the storage rack and the positioning ring to rotate. When the positioning ring drives the positioning groove to move close to the positioning pin, the second shaft stops rotating. At this time, the elastic reset component drives the first shaft to rotate and reset, so that the first shaft continues to rotate at a small angle. Then the positioning pin is inserted into the positioning groove, so that the rotation angle of the storage rack can be accurately positioned. 3. When it is necessary to release the lock of the first shaft and continue to rotate the storage rack via the push plate, the second rotating mechanism continues to drive the second shaft to rotate. At this time, the positioning pin positions the first shaft through the positioning groove, so that the first shaft does not rotate. The second shaft drives the push plate to rotate, and the push plate pushes the positioning pin to move away from the second shaft, so that the end of the positioning pin moves out of the positioning groove. Then, when the second shaft drives the limit block to move to the end of the limit groove, the second shaft can drive the storage rack to rotate smoothly through the first shaft. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the integrated automatic gas phase liquid nitrogen tank device of this application. Figure 2 This is a partial structural cross-sectional view of the integrated automatic storage and retrieval gas phase liquid nitrogen tank device of this application, to highlight the storage rack; Figure 3 This is a partially exploded cross-sectional view of the integrated automatic gas phase liquid nitrogen tank device of this application, to highlight the first positioning mechanism; Figure 4 This is a partial structural cross-sectional view of the integrated automatic storage and retrieval gas phase liquid nitrogen tank device of this application, to highlight the limiting block; Figure 5 This is a partial exploded view of the integrated automatic gas phase liquid nitrogen tank device of this application, to highlight the second positioning mechanism; Figure 6 This is a partial structural schematic diagram of the integrated automatic gas phase liquid nitrogen tank device of this application, to highlight the drive components; Figure 7 For this application Figure 1 Enlarged view of point A in the middle; Figure 8 For this application Figure 2 Enlarged view of point B in the middle; Figure 9 This is a partial structural cross-sectional view of the integrated automatic storage and retrieval device for gaseous liquid nitrogen tanks of this application, to highlight the clamping components; Figure 10 This is a partial structural cross-sectional view of the integrated automatic gas phase liquid nitrogen tank device of this application, to highlight the pusher block; Figure 11 This is a partial structural cross-sectional view of the integrated automatic storage and retrieval gas phase liquid nitrogen tank device of this application, to highlight the supporting hemisphere; Figure 12 This is a partial structural cross-sectional view of the integrated automatic storage and retrieval gas phase liquid nitrogen tank device of this application, highlighting the perforations.

[0029] Reference numerals: 1. Tank body; 2. Tank opening; 3. Tank lid; 4. First rotating mechanism; 41. First driving component; 5. Storage rack; 6. Rotating shaft; 61. First shaft; 62. Second shaft; 63. Limiting block; 7. Second rotating mechanism; 71. Second driving component; 72. Synchronous belt; 8. First positioning mechanism; 81. Positioning ring; 82. Positioning seat; 83. Positioning pin; 84. First elastic element; 9. Second positioning mechanism; 91. Driving component; 911. First lifting frame; 912. Guide rod; 913. Transmission... 914. Driven gear; 92. Hook; 93. Clamping component; 94. Second lifting frame; 95. Hanging rod; 96. Push block; 97. Clamping block; 98. Storage compartment; 99. Box frame; 90. Lifting clamping mechanism; 121. Vertical moving module; 122. Clamping component; 13. Trigger; 14. Positioning groove; 15. Limiting groove; 16. Push plate; 17. Driven rack; 18. Lifting groove; 19. Push groove; 20. Lifting plate; 21. Second elastic component; 22. Perforation; 23. Supporting hemisphere; 24. Chamfer. Detailed Implementation

[0030] The following is in conjunction with the appendix Figures 1-12 This application will be described in further detail.

[0031] This application discloses an integrated automatic storage and retrieval device for gaseous liquid nitrogen tanks.

[0032] Reference Figure 1 An integrated automatic storage and retrieval device for gaseous liquid nitrogen includes a tank body 1, with a tank opening 2 formed at the top of the tank body 1. A tank cover 3 is rotatably mounted on the tank body 1, and a first rotating mechanism 4 is mounted on the tank body 1. The first rotating mechanism 4 consists of a first driving component 41. In this application, the first driving component 41 can be selected as a rotary cylinder, and the tank cover 3 is fixedly mounted on the driving end of the first driving component 41. The first driving component 41 can drive the tank cover 3 to rotate automatically, so that the tank opening 2 can be automatically opened and closed.

[0033] Reference Figure 1 and Figure 2The tank body 1 is equipped with a storage rack 5, on which six storage compartments 10 are evenly spaced along its circumference. Each storage compartment 10 has an opening at the top, and each compartment contains a shelf 11. A rotating shaft 6 is rotatably mounted at the center of the top of the tank body 1, and the center of the storage rack 5 is fixedly connected to the bottom end of the rotating shaft 6. A second rotating mechanism 7 is mounted on the tank body 1, comprising a second drive component 71 and a timing belt 72. The second drive component 71 is fixedly mounted on the tank body 1, and the timing belt 72 is engaged with the drive end of the second drive component 71 and the top of the rotating shaft 6. The second drive component 71, through the timing belt 72 and the rotating shaft 6, drives the storage rack 5 to reciprocate within the tank body 1.

[0034] Reference Figure 1 A lifting and clamping mechanism 12 is installed on the tank body 1. The lifting and clamping mechanism 12 includes a vertical moving module 121 and a clamping member 122. The vertical moving module 121 is fixedly installed on the top of the tank body 1, and the clamping member 122 is fixedly installed on the lifting end of the vertical moving module 121. In this application, the clamping member 122 can be a four-jaw cylinder.

[0035] The second drive unit 71, via the synchronous belt 72 and the rotating shaft 6, moves the designated box rack 11 within the storage compartment 10 to below the can opening 2, while the first drive unit 41 rotates and opens the can lid 3. Subsequently, the horizontal and vertical movement modules 121 move the clamping member 122 deeper into the can body 1, clamping the top of the box rack 11, allowing the box rack 11 to be removed and placed on the worktable.

[0036] Reference Figure 2 , Figure 3 and Figure 4 The rotating shaft 6 includes a first shaft 61, a second shaft 62, an elastic reset member, and two limiting blocks 63. The first shaft 61 is rotatably installed inside the tank 1, and the storage rack 5 is fixedly installed at the bottom end of the first shaft 61. The second shaft 62 is coaxially fixedly installed at the top end of the first shaft 61, and the timing belt 72 is sleeved on the top end of the second shaft 62.

[0037] Two limiting blocks 63 are fixedly installed on both sides of the bottom of the second shaft 62 along the diameter direction of the second shaft 62. Two limiting grooves 15 are symmetrically opened at the top of the first shaft 61 along its own diameter direction. Each limiting groove 15 is arc-shaped along the circumference of the first shaft 61, and the two limiting blocks 63 are slidably installed in the two limiting grooves 15.

[0038] An elastic reset element is installed at the rotatable connection between the first shaft 61 and the second shaft 62. In this application, the elastic reset element can be a torsion spring. When the first shaft 61 and the second shaft 62 rotate relative to each other, the elastic reset element is used to drive the first shaft 61 to rotate and reset. When the first shaft 61 is in the reset state, the two limit blocks 63 are respectively located in the middle of the two limit grooves 15.

[0039] A first positioning mechanism 8 is installed on the tank body 1. The first positioning mechanism 8 includes a positioning ring 81, a positioning seat 82, a positioning pin 83, and a first elastic element 84. The positioning ring 81 is fixedly installed on the first shaft 61 and located above the tank body 1. Six positioning grooves 14 are evenly spaced along the outer circumference of the outer wall of the positioning ring 81. The positioning seat 82 is fixedly installed on the top wall of the tank body 1. The positioning pin 83 is slidably installed in the positioning seat 82 along the diameter direction of the positioning ring 81. The first elastic element 84 is installed in the positioning seat 82. In this application, the first elastic element 84 can be a spring. The first elastic element 84 abuts against the positioning pin 83 and pushes the positioning pin 83 to move and insert into the positioning groove 14.

[0040] The second driving component 71 drives the second shaft 62 to rotate, and the second shaft 62 drives the limiting block 63 to slide along the limiting groove 15. When the limiting block 63 reaches the end of the limiting groove 15, the limiting block 63 forces the first shaft 61 to start rotating through mechanical transmission, thereby driving the storage rack 5 and the positioning ring 81 to rotate. After the positioning groove 14 moves to the area near the positioning pin 83, the second shaft 62 stops driving. At this time, the elastic reset component intervenes, driving the first shaft 61 to continue to generate a small range of angular displacement. Subsequently, the positioning groove 14 on the positioning ring 81 rotates to the positioning pin 83. Through the energy storage effect of the first elastic component 84, the positioning pin 83 is adapted to slide into the positioning groove 14, thereby completing the rigid locking and precise positioning of the final position angle of the storage rack 5, so that the box rack 11 to be grasped is located directly below the can opening 2, which facilitates the clamping component 122 to accurately clamp the box rack 11.

[0041] Twelve push plates 16 are fixedly installed on the outer wall of the second shaft 62. Each pair of push plates 16 forms a group, and the six groups of push plates 16 correspond one-to-one with the six positioning slots 14. Each group of two push plates 16 is located on opposite sides of a positioning slot 14. When it is necessary to switch the storage rack 5 position, the second drive unit 71 continues to drive the second shaft 62 to rotate. At this time, since the positioning pin 83 is still engaged in the positioning slot 14, the first shaft 61 is constrained and remains stationary, while the second shaft 62 rotates independently relative to the first shaft 61. The second shaft 62 drives the push plates 16 to rotate, and the push plates 16 push the positioning pin 83 to slide outward axially until it disengages from the positioning slot 14, thereby releasing the lock on the first shaft 61. When the second shaft 62 drives the limiting block 63 to the end of the limiting slot 15, the second shaft 62 and the first shaft 61 form a rigid transmission coupling, thereby driving the storage rack 5 to smoothly rotate into the next set angle.

[0042] Reference Figure 5 and Figure 6The storage rack 5 is equipped with a second positioning mechanism 9, which consists of a driving component 91 and six clamping components 92. The driving component 91 is installed inside the tank body 1 and located below the tank opening 2, and the six clamping components 92 are respectively installed in the six storage compartments 10 of the storage rack 5.

[0043] Reference Figure 6 The drive component 91 includes a first lifting frame 911, four transmission gears 913, hooks 914 and eight guide rods 912. The eight guide rods 912 are fixedly installed on the top wall of the inner cavity of the tank body 1 and located on the periphery of the tank opening 2. The first lifting frame 911 is slidably installed on the eight guide rods 912. The four hooks 914 are symmetrically fixedly installed on both sides of the bottom wall of the first lifting frame 911 along the diameter direction of the tank body 1. A driven rack 17 is fixedly installed in the middle of the four inner side walls of the first lifting frame 911.

[0044] Reference Figure 6 and Figure 7 Four transmission gears 913 are fixedly mounted on eight guide rods 912 via connecting rods. The four transmission gears 913 are located inside the first lifting frame 911 and respectively mesh with four driven racks 17. Trigger elements 13 are fixedly mounted on the outer walls of the four jaws of the clamping member 122. In this application, the trigger elements 13 can be selected as drive racks. When the jaws of the clamping member 122 are in the open state and the clamping member 122 moves downwards into the can opening 2, the four trigger elements 13 mesh with the four transmission gears 913; when the jaws of the clamping member 122 are in the clamping state, the four trigger elements 13 disengage from the four transmission gears 913.

[0045] Reference Figure 9 and Figure 10 The clamping component 92 includes two second lifting frames 921, four hanging rods 922, sixteen push blocks 923, and clamping blocks 924. The two second lifting frames 921 are slidably installed in the storage compartment 10 in a vertical direction. The middle and bottom ends of one hanging rod 922 are fixedly connected to the two second lifting frames 921 respectively, and the four hanging rods 922 are distributed on opposite sides of the second lifting frames 921 along the diameter direction of the tank body 1. The second lifting frames 921 are located on the outside of the box frame 11, and the two second lifting frames 921 are located at the bottom and middle of the box frame 11 respectively.

[0046] Clamping blocks 924 are slidably installed in the storage rack 5 along the horizontal direction. Every two clamping blocks 924 are located at both ends of one side of a second lifting frame 921, and sixteen clamping blocks 924 are located around the four sides of the four second lifting frames 921. Each second lifting frame 921 has a lifting groove 18 at both ends of one side, and the sixteen clamping blocks 924 are located in the sixteen lifting grooves 18 and can move up and down relative to each other within the lifting grooves 18. Sixteen push blocks 923 are fixedly installed in the sixteen lifting grooves 18, and each clamping block 924 has an inclined push groove 19. The side of the push groove 19 closest to the box rack 11 is inclined downward, and the push block 923 is slidably installed in the push groove 19.

[0047] Reference Figure 10 , Figure 11 and Figure 12 Each storage rack 5 has a vertically slidable lifting plate 20 at the bottom of each storage compartment 10. Four second elastic members 21 are installed at the bottom of the lifting plate 20, with the bottom ends of the second elastic members 21 abutting against the storage rack 5. The box rack 11 is placed on the lifting plate 20. In this application, the second elastic members 21 can be springs.

[0048] Each storage rack 5 has a supporting hemisphere 23 fixedly installed in the middle of the bottom wall of each storage compartment 10. Each lifting plate 20 has a through hole 22 in the middle, and the supporting hemisphere 23 is located in the through hole 22. The ends of the eight clamping blocks 924 on the second lifting frame 921 at the bottom of the box rack 11 are all chamfered 24. The chamfer 24 is located at the bottom of the clamping block 924 near the end of the box rack 11, and the chamfer 24 of the eight clamping blocks 924 respectively abuts against the four sides of the top wall of the lifting plate 20.

[0049] When the storage rack 5 moves the target box rack 11 directly below the can opening 2, the hanging rod 922 on the storage rack 5 aligns with the hook 914 at the bottom of the first lifting frame 911 (see reference). Figure 8 Subsequently, as the vertical moving module 121 drives the clamping member 122 downward, the clamping member 122 drives the four trigger members 13 downward and extends into the can opening 2. The four trigger members 13 mesh with the four transmission gears 913, causing the transmission gears 913 to rotate. The transmission gears 913 drive the first lifting frame 911 upward through the driven rack 17. The first lifting frame 911 drives the four hanging rods 922 upward via the four hooks 914 at its bottom.

[0050] The hanging rod 922 drives the two second lifting frames 921 to rise synchronously. The second lifting frames 921 drive the push block 923 to move upward. The push block 923 moves along the push groove 19 and pushes the clamping block 924 to move towards the center of the box frame 11, so as to realize the synchronous closing of the multiple clamping blocks 924, thereby positioning the box frame 11 directly below the can opening 2.

[0051] Meanwhile, during the process of clamping the box frame 11 by the clamping block 924, the chamfer 24 at the end of the clamping block 924 inside the second lifting frame 921 at the bottom of the box frame 11 first acts on the lifting plate 20, causing the lifting plate 20 to move downward and separate from the bottom surface of the box frame 11; at this time, the top of the supporting hemisphere 23 located below the lifting plate 20 forms a point contact with the center of the bottom of the box frame 11, replacing the original surface contact of the lifting plate 20, effectively reducing contact friction, and making it easier for the clamping block 924 to drive the box frame 11 to move smoothly to the precise clamping position.

[0052] The implementation principle of the integrated automatic storage and retrieval device for gaseous liquid nitrogen tanks in this application embodiment is as follows: In the process of removing the box rack 11, the first driving component 41 controls the opening of the tank lid 3, and at the same time, the second driving component 71 drives the storage rack 5 to rotate via the rotating shaft 6, transferring the target box rack 11 directly below the tank opening 2. The rotating shaft 6 drives the positioning ring 81 to rotate synchronously. When the positioning ring 81 rotates to the designated position, the first elastic component 84 pushes the positioning pin 83 to slide into the positioning groove 14, thereby completing the rigid locking and precise positioning of the final position angle of the storage rack 5, so that the box rack 11 to be grasped is located directly below the tank opening 2, which facilitates the clamping component 122 to accurately clamp the box rack 11.

[0053] After the storage rack 5 completes its rotation angle positioning, the hanging rod 922 on the storage rack 5 engages with the hook 914 at the bottom of the first lifting frame 911. Subsequently, when the vertical moving module 121 drives the clamping member 122 downward, the clamping member 122 drives the four trigger members 13 downward and extends into the can opening 2. The four trigger members 13 mesh with the four transmission gears 913, driving the transmission gears 913 to rotate. The transmission gears 913 drive the first lifting frame 911 upward through the driven rack 17. The first lifting frame 911 drives the four hanging rods 922 upward via the four hooks 914 at its bottom. The hanging rods 922 drive the two second lifting frames 921 to rise synchronously. The second lifting frames 921 drive the push block 923 to move upward. The push block 923 moves along the push groove 19 and pushes the clamping block 924 towards the center of the box rack 11, realizing the synchronous closing of the multiple clamping blocks 924, thereby positioning the box rack 11 directly below the can opening 2.

[0054] When the clamping member 122 descends to the designated position, the four jaws of the clamping member 122 clamp the top of the box frame 11. At this time, the four trigger members 13 disengage from the four transmission gears 913, and the multiple clamping blocks 924 release the clamping limit on the box frame 11, so that the clamping member 122 can smoothly take out the box frame 11.

[0055] The above are merely optional embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. An integrated automatic storage and retrieval device for gaseous liquid nitrogen tanks, characterized in that: include A can body (1) has a can opening (2) formed on the top of the can body (1), and a can lid (3) is rotatably provided on the can opening (2). A first rotating mechanism (4) for driving the can lid (3) to open and close automatically is provided on the can body (1). A storage rack (5) is installed inside a tank (1). A rotating shaft (6) is rotatably mounted on the tank (1). The storage rack (5) is fixedly connected to the bottom end of the rotating shaft (6). A second rotating mechanism (7) for driving the rotating shaft (6) to reciprocate is provided on the tank (1). Multiple storage compartments (10) are formed at equal intervals along the circumference of the tank (1) inside the storage rack (5). Each storage compartment (10) contains a box rack (11). A first positioning mechanism (8) is provided on the tank (1) to limit the rotation of the rotating shaft (6). Rotate the angle and position the box rack (11) directly below the can opening (2); the storage rack (5) is provided with a second positioning mechanism (9), which includes a driving component (91) and multiple clamping components (92). The driving component (91) is located below the can opening (2) of the can body (1), and the multiple clamping components (92) are respectively located on the outside of multiple storage compartments (10). When the storage rack (5) drives the box rack (11) to rotate to directly below the can opening (2), the driving component (91) connects to the clamping components (92) on the outside of the box rack (11); A lifting clamping mechanism (12) is set above the can body (1) for automatically picking up and placing the box rack (11). The clamping end of the lifting clamping mechanism (12) is provided with a trigger (13). When the clamping end of the lifting clamping mechanism (12) descends and extends into the can opening (2), the trigger (13) connects to the driving component (91) and drives the clamping component (92) to clamp and position the box rack (11). When the clamping end of the lifting clamping mechanism (12) clamps the box rack (11), the trigger (13) is disconnected from the driving component (91), and the clamping component (92) releases its clamping of the box rack (11).

2. The integrated automatic storage and retrieval device for gaseous liquid nitrogen tank according to claim 1, characterized in that: The first positioning mechanism (8) includes a positioning ring (81), a positioning seat (82), a positioning pin (83), and a first elastic element (84). The positioning ring (81) is fixedly installed on the rotating shaft (6). The outer periphery of the positioning ring (81) is provided with a plurality of positioning grooves (14) at equal intervals along its circumference. The plurality of positioning grooves (14) correspond one-to-one with a plurality of storage compartments (10). The positioning seat (82) is fixedly installed on the tank body (1). The positioning pin (83) is slidably installed in the positioning seat (82). The first elastic element (84) is installed in the positioning seat (82) and is used to push the positioning pin (83) to slide into the positioning groove (14) in a matching manner.

3. The integrated automatic storage and retrieval device for gaseous liquid nitrogen tank according to claim 2, characterized in that: The rotating shaft (6) includes a first shaft (61), a second shaft (62), a limiting block (63), and an elastic reset member. The first shaft (61) is rotatably disposed inside the tank (1). The storage rack (5) is disposed at the bottom end of the first shaft (61). The second shaft (62) is coaxially rotatably disposed at the top end of the first shaft (61). The second shaft (62) is connected to the second rotating mechanism (7). The limiting block (63) is fixedly disposed at the bottom end of the second shaft (62). A limiting groove (15) is provided at the top of the first shaft (61). The limiting groove (15) is arc-shaped along the circumference of the first shaft (61). The limiting block (63) is slidably disposed in the limiting groove (15). The elastic reset member is disposed at the rotational connection between the first shaft (61) and the second shaft (62) and is used to drive the first shaft (61) to rotate and reset. When the first shaft (61) is in the initial reset state, the limiting block (63) is located in the middle of the limiting groove (15).

4. The integrated automatic storage and retrieval device for gaseous liquid nitrogen tank according to claim 3, characterized in that: Multiple sets of push plates (16) are fixedly arranged at equal intervals on the outer side wall of the second shaft (62). The multiple sets of push plates (16) correspond one-to-one with multiple positioning slots (14). Each set of push plates (16) consists of two push plates (16) spaced apart, and the two push plates (16) are located on both sides of the positioning slots (14). The push plates (16) move to contact the positioning pins (83) and push the positioning pins (83) to move away from the second shaft (62).

5. The integrated automatic storage and retrieval device for gaseous liquid nitrogen tank according to claim 1, characterized in that: The driving component (91) includes a first lifting frame (911), multiple guide rods (912), transmission gears (913), and hooks (914). The multiple guide rods (912) are fixedly disposed inside the tank body (1) and located on the periphery of the tank opening (2). The first lifting frame (911) is slidably disposed on the multiple guide rods (912). The multiple hooks (914) are fixedly disposed at the bottom of the first lifting frame (911) and are connected to the clamping component (92). The multiple transmission gears (913) are rotatably disposed on the inner wall of the tank body (1) and located on the inner side of the first lifting frame (911). The inner side wall of the first lifting frame (911) is provided with multiple driven racks (17). The multiple transmission gears (913) respectively mesh with the multiple driven racks (17). The multiple triggers (13) mesh with the multiple transmission gears (913).

6. The integrated automatic storage and retrieval device for gaseous liquid nitrogen tank according to claim 5, characterized in that: The clamping component (92) includes a second lifting frame (921), multiple hanging rods (922), a push block (923), and a clamping block (924). The second lifting frame (921) is slidably mounted on the storage rack (5) in the vertical direction and located on the outer periphery of the box rack (11). The multiple hanging rods (922) are fixedly connected to the second lifting frame (921), and the top ends of the multiple hanging rods (922) are connected to multiple hooks (914). The second lifting frame (921) has multiple lifting slots (914). 18) Multiple clamping blocks (924) are slidably disposed in the storage rack (5) and pass through the lifting groove (18). Multiple push blocks (923) are fixedly disposed in multiple lifting grooves (18). Each clamping block (924) is provided with an inclined push groove (19). Multiple push blocks (923) are respectively located in multiple push grooves (19). When the second lifting frame (921) moves upward, the push block (923) drives the clamping block (924) to move and abut against the box rack (11) through the push groove (19).

7. An integrated automatic storage and retrieval device for gaseous liquid nitrogen tanks according to claim 6, characterized in that: The storage rack (5) is slidably provided with a lifting plate (20) at the bottom of each storage compartment (10). The box rack (11) is placed on the lifting plate (20). The storage rack (5) is provided with a second elastic element (21) at the bottom of the lifting plate (20). The lifting plate (20) has a through hole (22) in the middle. The storage compartment (10) has a supporting hemisphere (23) fixedly provided at the bottom middle. The supporting hemisphere (23) is located in the through hole (22) of the lifting plate (20). The clamping block (924) is located above the lifting plate (20) at the bottom of the storage compartment (10). The end of the bottom wall of the clamping block (924) is formed with a chamfer (24). The chamfer (24) abuts against the top wall of the lifting plate (20).

8. The integrated automatic storage and retrieval device for gaseous liquid nitrogen tank according to claim 1, characterized in that: The lifting and clamping mechanism (12) includes a vertical moving module (121) and a clamping member (122). The vertical moving module (121) is mounted on the tank body (1), the clamping member (122) is mounted on the lifting end of the vertical moving module (121), and the trigger member (13) is mounted on the outside of the clamping member (122).

9. An integrated automatic storage and retrieval device for gaseous liquid nitrogen tanks according to claim 1, characterized in that: The second rotating mechanism (7) includes a second driving member (71) and a timing belt (72). The second driving member (71) is disposed on the top of the tank body (1), and the timing belt (72) is sleeved on the driving end of the second driving member (71) and the rotating shaft (6).

10. An integrated automatic storage and retrieval device for gaseous liquid nitrogen tanks according to claim 1, characterized in that: The first rotating mechanism (4) includes a first driving member (41), and the can lid (3) is disposed at the driving end of the first driving member (41).

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