Roadway stacker for liquid oxygen storage tank storage

Abstract

The invention relates to the technical field of roadway stacking, in particular to a roadway stacking machine for liquid oxygen storage tank warehousing, which comprises a lifting frame, a goods shelf and a placing frame, the lifting frame is slidably mounted on one side of the goods shelf, a placing cabinet is slidably mounted on the side wall of the lifting frame, and a driving mechanism is arranged between the placing cabinet and the lifting frame. And a protection cavity and a placement cavity are formed in the placement cabinet. The liquid oxygen tanks are wrapped by the wrapping bags, so that every two adjacent liquid oxygen tanks are protected by the wrapping bags, the problem that the liquid oxygen tanks are damaged due to collision in the transportation or stacking process is effectively avoided, the safety and stability in the stacking process of the liquid oxygen tanks are improved, the liquid oxygen tanks are lifted while the liquid oxygen tanks are clamped by the wrapping bags, and the liquid oxygen tanks are lifted by the wrapping bags at the same time. The bottom of the liquid oxygen tank is separated from the placing frame, so that rigid contact between the liquid oxygen tank and the placing frame is reduced, the risk that the liquid oxygen tank is damaged due to vibration or impact is effectively reduced, and the safety and stability in the stacking process of the liquid oxygen tank are further improved.

Description

Technical Field

[0001] This invention relates to the field of tunnel stacking technology, and more particularly to a tunnel stacking machine for liquid oxygen storage tanks. Background Technology

[0002] With the continuous evolution and widespread application of intelligent warehousing systems, the limitations of traditional stacker cranes in high-risk media storage scenarios are becoming increasingly apparent, especially in terms of safety protection mechanisms and overall automation levels. When handling special materials that are extremely sensitive to temperature and pressure environments, such as liquid oxygen storage tanks, the commonly used mechanical clamping and handling methods can easily generate significant vibrations during operation. These vibrations can not only loosen the sealing structure of the storage tanks but also easily cause collisions between tanks, thus significantly increasing the risk of media leakage. Furthermore, traditional stacker cranes are relatively weak in control systems and sensor monitoring, lacking high-precision positioning capabilities and real-time status feedback mechanisms. Once a leak or abnormal system pressure occurs during handling or stacking operations, the equipment often cannot accurately identify abnormal pressure fluctuations or detect displacement deviations, resulting in early safety hazards not being detected in time. This leads to operators being unable to be aware of the danger and initiate corresponding emergency response procedures in the first instance, resulting in delayed accident response and potentially causing serious production safety incidents that pose a significant threat to personnel, equipment, and the environment. Summary of the Invention

[0003] The purpose of this invention is to solve the problems in the background art by proposing a stacker crane for liquid oxygen storage tanks.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A stacker crane for liquid oxygen storage tanks includes a lifting frame, a rack, and a placement rack. The lifting frame is slidably installed on one side of the rack, and a placement cabinet is slidably installed on the side wall of the lifting frame. A drive mechanism is provided between the placement cabinet and the lifting frame. The placement cabinet has a protective cavity and a placement cavity inside. A protective component is movably installed inside the protective cavity. The protective component includes an airbag and a sliding plate. The sliding plate is slidably installed inside the protective cavity, and the airbag is fixedly installed below the sliding plate. A sealing plate is integrally formed on the side wall of the sliding plate. The sealing plate is slidably inserted into the placement cavity. The placement rack is placed inside the placement cavity. Several evenly distributed liquid oxygen tanks are placed inside the placement rack. Several evenly distributed covering bladders are integrally formed on the bottom of the airbag. The covering bladders are located above the liquid oxygen tanks and correspond one-to-one with the liquid oxygen tanks. The placement cavity is movably equipped with a stacking assembly, which is used for moving the placement rack and stacking operations.

[0005] Preferably, the bottom of the airbag is integrally formed with a plurality of evenly distributed water bladders, the water bladders and the covering bladders are one-to-one corresponding and located above the covering bladders, the covering bladders and the airbags are connected, the top of the liquid oxygen tank is fixedly installed with a sealing cap, and the bottom of the water bladders corresponds to the sealing cap.

[0006] Preferably, the sidewall of the water bladder is integrally formed with an installation groove, a support ring is fixedly installed on the inner side of the installation groove, a metal shell is integrally formed on the outer side of the support ring, the metal shell is located inside the water bladder, liquid is filled between the inner side of the metal shell and the inside of the water bladder, and a plurality of evenly distributed air grooves are formed on the inner side of the support ring.

[0007] Preferably, the side wall of the placement cabinet is integrally formed with a cavity, a piston plate is slidably installed inside the cavity, a spring is provided between the piston plate and the inner wall of the cavity, a pressure valve is provided between the cavity and the placement chamber, a buzzer is fixedly installed on the side wall of the cavity, and the piston plate is located between the pressure valve and the buzzer.

[0008] Preferably, an air pump is fixedly installed on the top of the placement cabinet, and an air pipe is fixedly connected to the output end of the air pump. The air pipe passes through the side wall of the placement cabinet and the slide plate to the bottom of the airbag and communicates with the placement cavity.

[0009] Preferably, an air pump two is fixedly installed on the top of the placement cabinet, and an air pipe two is fixedly connected to the output end of the air pump two. A branch pipe is integrally formed on the top of the airbag, and the air pipe two passes through the side wall of the placement cabinet and the slide plate and is fixedly connected to the branch pipe.

[0010] Preferably, a motor is fixedly installed on the top of the placement cabinet, a screw is fixedly connected to the output end of the motor, a screw hole is opened on the side wall of the slide plate, the screw and the screw hole are threadedly connected, a sealing plug is fixedly installed at the bottom of the screw, a sealing hole is opened at the bottom of the screw hole, and the sealing plug is slidably inserted into the inside of the sealing hole.

[0011] Preferably, the stacking assembly includes a bracket, an electric push rod is fixedly installed inside the placement cavity, the output end of the electric push rod is fixedly connected to the bracket, the bracket is slidably inserted into the inside of the placement cavity, and the bracket is located below the placement frame.

[0012] Compared with existing technologies, the beneficial effects of this invention are as follows: 1. After the sealing plug slides into the sealing hole, the sealing plate seals the placement cavity. At this time, the bladder is placed on the outside of the liquid oxygen tank. By covering the liquid oxygen tank with the bladder, the bladder protects the liquid oxygen tanks between adjacent liquid oxygen tanks, effectively avoiding the problem of liquid oxygen tanks being damaged due to collisions during transportation or stacking, and improving the safety and stability of liquid oxygen tanks during stacking.

[0013] 2. After the bladder expands and extends downwards, it clamps the liquid oxygen tank, further enhancing its fixation. As the internal pressure of the placement chamber increases, the bladder contracts and lifts the liquid oxygen tank upwards. At this point, the liquid oxygen tank is lifted while being clamped by the bladder, causing the bottom of the liquid oxygen tank to separate from the placement rack. This reduces the rigid contact between the liquid oxygen tank and the placement rack, effectively reducing the risk of damage to the liquid oxygen tank due to vibration or impact, and further improving the safety and stability of the liquid oxygen tank stacking process.

[0014] 3. When a liquid oxygen tank breaks and leaks during stacking, the liquid inside the water bladder rapidly freezes and expands, clamping the liquid oxygen tank. This causes the leaking liquid oxygen tank to separate from the non-leaking liquid oxygen tank as the slide moves the air bladder upward. Through the conduction of low temperature by the support ring, the liquid inside the water bladder rapidly freezes and clamps the liquid oxygen tank when it leaks, directly locking the leaking liquid oxygen tank. This ensures that the leak source is effectively controlled and identified, improving the timeliness and safety of leak handling. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure after removing the shelves and lifting frame in this invention; Figure 3 This is a cross-sectional view of the structure after removing the shelves and lifting frame in this invention; Figure 4 For the present invention Figure 3 Enlarged schematic diagram of the structure at point A; Figure 5 This is a schematic diagram of the protective component in this invention; Figure 6 This is a schematic diagram of the skateboard structure in this invention; Figure 7 This is a cross-sectional view of the airbag structure in this invention; Figure 8 This is a cross-sectional view of the metal shell in this invention; Figure 9 This is a schematic diagram of the stacking assembly in this invention; Figure 10 This is a schematic diagram of the placement rack and liquid oxygen tank in this invention.

[0016] In the diagram: 1. Storage cabinet; 11. Lifting frame; 12. Shelf; 13. Storage rack; 131. Liquid oxygen tank; 132. Sealing cover; 141. Protective cavity; 142. Storage cavity; 143. Cavity; 144. Buzzer; 145. Bracket; 146. Electric actuator; 21. Airbag; 211. Encapsulation bag; 212. Water bag; 213. Branch pipe; 214. Mounting slot; 215. Metal shell; 216. Support ring; 217. Air groove; 22. Slide plate; 221. Screw hole; 222. Sealing plate; 223. Sealing hole; 311. Air pump one; 312. Air pump two; 313. Air pipe one; 314. Air pipe two; 315. Electric motor; 316. Screw; 317. Sealing plug; 32. Piston plate; 321. Spring one; 322. Pressure valve. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0019] Reference Figure 1 - Figure 10 As shown, a stacker crane for liquid oxygen storage tanks includes a lifting frame 11, a rack 12, and a placement rack 13. The lifting frame 11 is slidably mounted on one side of the rack 12. A placement cabinet 1 is slidably mounted on the side wall of the lifting frame 11. A drive mechanism is provided between the placement cabinet 1 and the lifting frame 11. The placement cabinet 1 has a protective cavity 141 and a placement cavity 142 inside. A protective component is movably mounted inside the protective cavity 141. The protective component includes an airbag 21 and a sliding plate 22. The sliding plate 22 is slidably mounted in the protective cavity 141. Inside 1, the airbag 21 is fixedly installed below the slide plate 22. The side wall of the slide plate 22 is integrally formed with a sealing plate 222. The sealing plate 222 is slidably inserted into the interior of the placement cavity 142. The placement cavity 142 is filled with a placement rack 13. The placement rack 13 is filled with several evenly distributed liquid oxygen tanks 131. The bottom of the airbag 21 is integrally formed with several evenly distributed covering bladders 211. The covering bladders 211 are located above the liquid oxygen tanks 131 and correspond one-to-one with the liquid oxygen tanks 131. The placement cavity 142 is movably equipped with a stacking assembly, which is used for moving and stacking the placement rack 13.

[0020] The inner diameter of the encapsulated bladder 211 is slightly larger than the diameter of the liquid oxygen tank 131.

[0021] like Figure 3 , Figure 9 and Figure 10 As shown, the stacking assembly includes a bracket 145, and an electric push rod 146 is fixedly installed inside the placement cavity 142. The output end of the electric push rod 146 is fixedly connected to the bracket 145. The bracket 145 is slidably inserted into the placement cavity 142 and is located below the placement rack 13.

[0022] When stacking the placement rack 13 containing the liquid oxygen tank 131, the electric actuator 146 is activated and drives the bracket 145 to move. The bracket 145 moves out of the placement cavity 142. After the bracket 145 moves to the bottom of the placement rack 13, the electric actuator 146 drives the bracket 145 to move towards the placement cavity 142, so that the placement rack 13 moves into the interior of the placement cavity 142. At this time, the liquid oxygen tank 131 and the encapsulation bladder 211 correspond to each other.

[0023] like Figure 3 , Figure 5 and Figure 6 As shown, a motor 315 is fixedly installed on the top of the cabinet 1. A screw 316 is fixedly connected to the output end of the motor 315. A screw hole 221 is opened on the side wall of the slide plate 22. The screw 316 and the screw hole 221 are threadedly connected. A sealing plug 317 is fixedly installed at the bottom of the screw 316. A sealing hole 223 is opened at the bottom of the screw hole 221. The sealing plug 317 is slidably inserted into the inside of the sealing hole 223.

[0024] In this process, after the placement rack 13 containing the liquid oxygen tank 131 moves to the placement cavity 142, the motor 315 starts and drives the slide plate 22 downward through the screw 316. The slide plate 22 drives the airbag 21 downward. When the sealing plug 317 slides into the sealing hole 223, the sealing plate 222 seals the placement cavity 142. At this time, the covering bag 211 is fitted on the outside of the liquid oxygen tank 131. By covering the liquid oxygen tank 131, the covering bag 211 protects the liquid oxygen tank 131 between two adjacent liquid oxygen tanks, effectively avoiding the problem of damage to the liquid oxygen tank 131 due to collision during transportation or stacking, and improving the safety and stability of the liquid oxygen tank 131 during stacking. After the lifting rack 11 moves to the set position, the motor 315 starts and drives the slide plate 22 upward through the screw 316. The slide plate 22 drives the airbag 21 upward. At this time, the covering bag 211 and the liquid oxygen tank 131 separate.

[0025] like Figure 3 , Figure 5 and Figure 7As shown, an air pump 311 is fixedly installed on the top of the placement cabinet 1. An air pipe 313 is fixedly connected to the output end of the air pump 311. The air pipe 313 passes through the side wall of the placement cabinet 1 and the slide plate 22 to the bottom of the airbag 21 and is connected to the placement cavity 142. An air pump 312 is fixedly installed on the top of the placement cabinet 1. An air pipe 314 is fixedly connected to the output end of the air pump 312. A branch pipe 213 is integrally formed on the top of the airbag 21. The air pipe 314 passes through the side wall of the placement cabinet 1 and the slide plate 22 and is fixedly connected to the branch pipe 213.

[0026] The length of the encapsulation bladder 211 is less than the height of the liquid oxygen tank 131. After the sealing plate 222 seals the placement cavity 142, the second air pump 312 is started and inflates the inside of the air bladder 21, causing the encapsulation bladder 211 to expand and extend downwards. Through the expansion of the encapsulation bladder 211, the encapsulation bladder 211 clamps the liquid oxygen tank 131, further enhancing the fixation effect of the liquid oxygen tank 131. After the encapsulation bladder 211 is inflated, the second air pump 312 is turned off, and the first air pump 311 is started and inflates the inside of the placement cavity 142, making the inside of the placement cavity 142 a high-pressure state. As the internal pressure of the placement cavity 142 increases, the covering bladder 211 contracts and lifts the liquid oxygen tank 131 upward. When the pressure inside the placement cavity 142 reaches the set value, the air pump 311 is turned off. At this time, the liquid oxygen tank 131 is lifted while being clamped by the covering bladder 211, so that the bottom of the liquid oxygen tank 131 is separated from the placement rack 13. This reduces the rigid contact between the liquid oxygen tank 131 and the placement rack 13, effectively reducing the risk of damage to the liquid oxygen tank 131 due to vibration or impact, and further improving the safety and stability of the liquid oxygen tank 131 during the stacking process.

[0027] like Figure 3 , Figure 4 and Figure 7 As shown, the bottom of the airbag 21 is integrally formed with several evenly distributed water bladders 212, which correspond one-to-one with the covering bladder 211 and are located above the covering bladder 211. The covering bladder 211 and the airbag 21 are connected. The top of the liquid oxygen tank 131 is fixedly installed with a sealing cap 132, and the bottom of the water bladder 212 corresponds to the sealing cap 132.

[0028] like Figure 4 , Figure 7 and Figure 8 As shown, the side wall of the water bladder 212 is integrally formed with an installation groove 214. A support ring 216 is fixedly installed on the inner side of the installation groove 214. A metal shell 215 is integrally formed on the outer side of the support ring 216. The metal shell 215 is located inside the water bladder 212. Liquid is filled between the inner side of the metal shell 215 and the inside of the water bladder 212. Several evenly distributed air grooves 217 are opened on the inner side of the support ring 216.

[0029] In this configuration, when the encapsulation bladder 211 is fitted over the outside of the liquid oxygen tank 131, the top of the liquid oxygen tank 131 and the sealing cap 132 are both embedded inside the water bladder 212. The support ring 216 is fitted over the outside of the liquid oxygen tank 131. When the liquid oxygen tank 131 is damaged and leaks during stacking, the liquid oxygen inside the liquid oxygen tank 131 instantly vaporizes and is released, causing the cryogenic gas to fill the inside of the water bladder 212. At this time, the support ring 216 conducts the temperature of the cryogenic gas to the inside of the water bladder 212, causing the liquid inside the water bladder 212 to freeze rapidly and expand. At this time, the water bladder 212 provides cooling to the liquid oxygen. When the liquid oxygen tank 131 is clamped, and the airbag 21 moves upward with the sliding plate 22, the covering bag 211 separates from the unleashed liquid oxygen tank 131. The water bag 212 lifts the leaking liquid oxygen tank 131, thus separating the leaking liquid oxygen tank 131 from the unleashed liquid oxygen tank 131. Through the conduction of low temperature by the support ring 216, when the liquid oxygen tank 131 leaks, the liquid inside the water bag 212 quickly freezes and clamps the liquid oxygen tank 131, directly locking the leaking liquid oxygen tank 131, ensuring that the leak source is effectively controlled and identified, and improving the timeliness and safety of leak handling.

[0030] like Figure 2 , Figure 3 and Figure 9 As shown, the side wall of the placement cabinet 1 is integrally formed with a cavity 143. A piston plate 32 is slidably installed inside the cavity 143. A spring 321 is provided between the piston plate 32 and the inner wall of the cavity 143. A pressure valve 322 is provided between the cavity 143 and the placement cavity 142. A buzzer 144 is fixedly installed on the side wall of the cavity 143. The piston plate 32 is located between the pressure valve 322 and the buzzer 144.

[0031] In this process, the cryogenic gas leaking from the liquid oxygen tank 131 is discharged into the placement chamber 142 through the gas groove 217, further increasing the pressure in the placement chamber 142. When the pressure inside the placement chamber 142 exceeds the threshold set by the pressure valve 322, the pressure valve 322 opens, and the gas inside the placement chamber 142 is discharged into the cavity 143. This causes the piston plate 32 to discharge the air inside the cavity 143 into the buzzer 144, at which point the buzzer 144 sounds an alarm. By detecting the pressure inside the placement chamber 142 through the pressure valve 322, the buzzer 144 can be triggered in a timely manner after the liquid oxygen tank 131 leaks, providing an immediate warning of the leak and reminding operators to take immediate countermeasures to effectively avoid risks and ensure on-site safety.

[0032] The working principle and usage of this invention are explained in detail below: When stacking the rack 13 containing the liquid oxygen tank 131, the bracket 145 moves the rack 13 containing the liquid oxygen tank 131 into the placement cavity 142. At this time, the liquid oxygen tank 131 and the covering bladder 211 correspond. The motor 315 starts, and the sliding plate 22 drives the air bladder 21 to move downward. When the sealing plug 317 slides into the sealing hole 223, the sealing plate 222 seals the placement cavity 142. At this time, the covering bladder 211 is sleeved on the outside of the liquid oxygen tank 131. The top of the liquid oxygen tank 131 and the sealing cap 132 are both embedded in the inside of the water bladder 212. The support ring 216 is sleeved on the outside of the liquid oxygen tank 131. The liquid oxygen tank 131 is covered by the covering bladder 211. The protective bladder 211 protects the liquid oxygen tanks 131 from damage caused by collisions during transportation or stacking, improving the safety and stability of the liquid oxygen tanks 131 during stacking. At this time, the second air pump 312 starts and inflates the inside of the bladder 21, causing the bladder 211 to expand and extend downwards. The expansion of the bladder 211 clamps the liquid oxygen tank 131, further enhancing its fixation. After the bladder 211 is fully inflated, the second air pump 312 is turned off, and the first air pump 311 starts and inflates the placement cavity 142, creating a high-pressure environment inside. As the pressure inside the placement cavity 142 increases, the protective bladder... The bladder 211 contracts, lifting the liquid oxygen tank 131 upwards. When the pressure inside the placement chamber 142 reaches the set value, the air pump 311 shuts off. At this time, the liquid oxygen tank 131 is lifted while being clamped by the bladder 211, causing the bottom of the liquid oxygen tank 131 to separate from the placement rack 13. This reduces the rigid contact between the liquid oxygen tank 131 and the placement rack 13, effectively reducing the risk of damage to the liquid oxygen tank 131 due to vibration or impact, and further improving the safety and stability of the liquid oxygen tank 131 during stacking. When the liquid oxygen tank 131 breaks and leaks during stacking, the liquid oxygen inside the liquid oxygen tank 131 instantly vaporizes and is released, causing the support ring 216 to conduct the temperature of the cryogenic gas to the inside of the water bladder 212. The liquid rapidly freezes and expands, causing the water bladder 212 to clamp the liquid oxygen tank 131. The leaking cryogenic gas is discharged through the gas groove 217 into the placement chamber 142, further increasing the pressure in the placement chamber 142. When the pressure inside the placement chamber 142 exceeds the threshold set by the pressure valve 322, the pressure valve 322 opens, and the gas inside the placement chamber 142 is discharged into the cavity 143. This causes the piston plate 32 to discharge the air inside the cavity 143 into the buzzer 144, at which point the buzzer 144 sounds an alarm. The pressure detection of the placement chamber 142 by the pressure valve 322 ensures that the buzzer 144 can be triggered promptly after a leak in the liquid oxygen tank 131, providing immediate warning of the leak and reminding operators to take immediate countermeasures.To effectively avoid risks and ensure on-site safety, air pump 311 extracts and discharges the gas inside placement chamber 142. When the pressure inside placement chamber 142 returns to normal, the covering bladder 211 resumes expansion, and the bottom of liquid oxygen tank 131 comes into contact with the placement rack 13, returning liquid oxygen tank 131 to its original position. At this time, air pump 312 extracts the gas inside airbag 21. After the covering bladder 211 releases its grip on liquid oxygen tank 131, motor 315 starts and drives slide plate 22 upward via screw 316. Slide plate 22 moves airbag 21 upward, causing... The encapsulation bladder 211 separates from the liquid oxygen tank 131. At this point, the encapsulation bladder 211 separates from the unleashed liquid oxygen tank 131. The water bladder 212 lifts the leaking liquid oxygen tank 131, separating it from the unleashed tank. Through the conduction of cryogenic temperature via the support ring 216, when the liquid oxygen tank 131 leaks, the liquid inside the water bladder 212 quickly freezes and clamps the liquid oxygen tank 131, directly locking the leaking tank 131. This ensures that the leak source is effectively controlled and identified, improving the timeliness and safety of leak handling.

[0033] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A stacker crane for liquid oxygen storage tanks, comprising a lifting frame (11), a rack (12), and a placement rack (13), characterized in that: The lifting frame (11) is slidably installed on one side of the shelf (12). A storage cabinet (1) is slidably installed on the side wall of the lifting frame (11). A drive mechanism is provided between the storage cabinet (1) and the lifting frame (11). The storage cabinet (1) has a protective cavity (141) and a storage cavity (142) inside. A protective component is movably installed inside the protective cavity (141). The protective component includes an airbag (21) and a sliding plate (22). The sliding plate (22) is slidably installed inside the protective cavity (141). The airbag (21) is fixedly installed on the sliding plate. Below the plate (22), the side wall of the slide plate (22) is integrally formed with a sealing plate (222), the sealing plate (222) is slidably inserted into the interior of the placement cavity (142), the interior of the placement cavity (142) is filled with a placement rack (13), the interior of the placement rack (13) is filled with several evenly distributed liquid oxygen tanks (131), the bottom of the airbag (21) is integrally formed with several evenly distributed covering bladders (211), the covering bladders (211) are located above the liquid oxygen tanks (131) and correspond one-to-one with the liquid oxygen tanks (131); The placement cavity (142) is movably fitted with a stacking assembly for moving and stacking the placement rack (13).

2. The stacker crane for liquid oxygen storage tanks according to claim 1, characterized in that: The bottom of the airbag (21) is integrally formed with several evenly distributed water bladders (212), the water bladders (212) and the covering bladder (211) are in one-to-one correspondence and are located above the covering bladder (211). The covering bladder (211) and the airbag (21) are connected. The top of the liquid oxygen tank (131) is fixedly installed with a sealing cap (132), and the bottom of the water bladder (212) corresponds to the sealing cap (132).

3. The stacker crane for liquid oxygen storage tanks according to claim 2, characterized in that: The sidewall of the water bladder (212) is integrally formed with an installation groove (214). A support ring (216) is fixedly installed on the inner side of the installation groove (214). A metal shell (215) is integrally formed on the outer side of the support ring (216). The metal shell (215) is located inside the water bladder (212). Liquid is filled between the inner side of the metal shell (215) and the inside of the water bladder (212). Several evenly distributed air grooves (217) are opened on the inner side of the support ring (216).

4. The stacker crane for liquid oxygen storage tanks according to claim 1, characterized in that: The side wall of the placement cabinet (1) is integrally formed with a cavity (143). A piston plate (32) is slidably installed inside the cavity (143). A spring (321) is provided between the piston plate (32) and the inner wall of the cavity (143). A pressure valve (322) is provided between the cavity (143) and the placement cavity (142). A buzzer (144) is fixedly installed on the side wall of the cavity (143). The piston plate (32) is located between the pressure valve (322) and the buzzer (144).

5. The stacker crane for liquid oxygen storage tanks according to claim 1, characterized in that: An air pump (311) is fixedly installed on the top of the placement cabinet (1). An air pipe (313) is fixedly connected to the output end of the air pump (311). The air pipe (313) passes through the side wall of the placement cabinet (1) and the slide plate (22) to the bottom of the airbag (21) and communicates with the placement cavity (142).

6. The stacker crane for liquid oxygen storage tanks according to claim 1, characterized in that: The top of the storage cabinet (1) is fixedly equipped with an air pump (312), and the output end of the air pump (312) is fixedly connected to an air pipe (314). The top of the airbag (21) is integrally formed with a branch pipe (213). The air pipe (314) passes through the side wall of the storage cabinet (1) and the slide plate (22) and is fixedly connected to the branch pipe (213).

7. The stacker crane for liquid oxygen storage tanks according to claim 1, characterized in that: A motor (315) is fixedly installed on the top of the placement cabinet (1). A screw (316) is fixedly connected to the output end of the motor (315). A screw hole (221) is opened on the side wall of the slide plate (22). The screw (316) and the screw hole (221) are threadedly connected. A sealing plug (317) is fixedly installed at the bottom of the screw (316). A sealing hole (223) is opened at the bottom of the screw hole (221). The sealing plug (317) is slidably inserted into the inside of the sealing hole (223).

8. The stacker crane for liquid oxygen storage tanks according to claim 1, characterized in that: The stacking assembly includes a bracket (145), and an electric push rod (146) is fixedly installed inside the placement cavity (142). The output end of the electric push rod (146) is fixedly connected to the bracket (145). The bracket (145) is slidably inserted into the placement cavity (142) and is located below the placement rack (13).

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