Liquid oxygen filling device with warning function

Abstract

The invention discloses a liquid oxygen filling device with a warning function, which relates to the technical field of liquid oxygen filling equipment and comprises a foldable base, a steel cylinder, a vertical plate and a matching mechanism. The base consists of two groups of hinged bases, is convenient for a forklift to transport when being folded, and can accommodate a plurality of groups of steel cylinders after being unfolded; the switching mechanism on the vertical plate is matched with the positioning mechanism, base state switching and steel cylinder accurate positioning are achieved, and the calibration mechanism ensures that air inlet nozzles of the steel cylinders uniformly face the vertical plate. The butt joint mechanism is driven through a gear and a rack, so that a butt joint nozzle is in automatic butt joint with a gas inlet nozzle of the steel cylinder, and the liquid oxygen tank can fill multiple steel cylinders at the same time. The alarm mechanism integrates a pressure sensor, a liquid level sensor and a temperature sensor and monitors filling parameters in real time, and a microprocessor immediately controls a butt joint nozzle to be separated when the filling parameters are abnormal, blocks a liquid oxygen channel and triggers sound-light alarm and information pushing. The device solves the problems of inconvenience in steel cylinder transportation, low filling efficiency, poor safety and the like, realizes automation and safety of liquid oxygen filling, and is suitable for industrial batch filling scenes.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid oxygen filling equipment, and in particular to a liquid oxygen filling device with a warning function. Background Art

[0002] Existing liquid oxygen filling operations face numerous bottlenecks that hinder the industry's development. For example, the filling solutions proposed in patents such as CN110778911A and CN215764583U are extremely inefficient in transporting cylinders due to their heavy weight. Only one or two cylinders can be transported at a time, and frequent tilting and friction can easily cause surface wear, reducing their service life and safety. This makes it difficult to meet the needs of large-scale, efficient transportation. The filling process also faces difficulties. Traditional filling equipment has limited automation and cannot realize the simultaneous filling of multiple cylinders with liquid oxygen tanks. It relies on manual operation bottle by bottle, which is not only time-consuming but also prone to problems such as low filling efficiency and uneven filling volume due to human errors. Insufficient positioning accuracy of the cylinder is also a key factor affecting the filling quality. The existing technology lacks an effective calibration and positioning coordination mechanism, which makes it difficult to accurately connect the cylinder air inlet nozzle and the docking nozzle, which can easily cause filling leakage or failure to fill normally. Even more serious is the issue of safety monitoring. Existing equipment only monitors key parameters during the filling process, such as pressure, liquid level, and temperature, with limited means, and is unable to simultaneously monitor and rapidly respond to multiple parameters. When excessive pressure, excessive liquid levels, or abnormal temperature fluctuations occur, the docking nozzle cannot be disconnected promptly, blocking the liquid oxygen flow path. This poses significant safety risks, such as gas leaks and overpressure explosions. Furthermore, the inability to accurately locate the abnormal cylinder complicates troubleshooting and repair. Therefore, there is an urgent need for a new liquid oxygen filling device with convenient transportation, efficient automatic filling, precise positioning and all-round safety monitoring functions to improve production efficiency and ensure operational safety. Summary of the Invention

[0003] In order to solve the technical problems existing in the background technology, the present invention proposes a liquid oxygen filling device with a warning function, comprising: Base: Consists of two sets of rectangular bases, each of which has multiple sets of limiting grooves arranged in a straight line along the long sides on the top of the two sets of bases, and multiple sets of universal wheels installed on the bottom; one vertical edge of the two sets of bases is hinged by a pin, so that the two sets of bases can be rotated around the pin and folded or unfolded. When folded, it forms a rectangular parallelepiped with a constant length and twice the width of a single base; when unfolded, it forms a rectangular parallelepiped with a constant width and twice the length of a single base; Steel cylinders: There are multiple groups of them, which are placed vertically in each of the limiting grooves, and the top side walls are horizontally provided with air inlet nozzles for filling liquid oxygen; Vertical plate: equipped with a switching mechanism and a positioning mechanism. The switching mechanism is used to switch the base between the folded and unfolded states. The positioning mechanism is located above the switching mechanism and can move vertically on the vertical plate to position each cylinder on the base. Calibration mechanism: provided in each limiting groove of the base, used to adjust the air inlet nozzles of each cylinder to be uniformly oriented toward the vertical plate; Docking mechanism: It is located on the positioning mechanism and includes multiple sets of docking nozzles, which are used to connect and disconnect the docking nozzles with the gas inlet nozzles of each cylinder; Alarm mechanism: includes a detection component, a display screen and a control component. The display screen and detection component are installed on the positioning mechanism and are used to detect and display real-time parameters during the liquid oxygen filling process. The control component includes an input end and an output end. The input end is connected to the liquid oxygen tank through a pipeline, and the output end is connected to the docking mechanism. When an abnormality occurs, the connection between the input end and the output end is blocked.

[0004] Preferably, the two groups of bases are respectively a first base and a second base, and when the first base and the second base are folded relative to each other, the butting surfaces of the two can be matched and connected; The first base docking surface is provided with a plurality of horizontally parallel slots, and the second base docking surface is provided with convex keys adapted thereto, and the slots and keys can be engaged with each other; The ends of the mating surfaces of the first base and the second base away from the pin shaft are respectively provided with a protruding clamping bolt and a corresponding concave clamping hole, and the clamping bolt is inserted into the clamping hole to achieve precise positioning and stable connection of the first base and the second base in the folded state; A forklift slot is formed through the bottom of the first base and the bottom of the second base along the long side direction.

[0005] The dual locking structure of the slot and key, and the locking bolt and hole ensures the connection strength and stability when the base is folded. The forklift slot design facilitates quick loading and unloading by forklifts, improving transportation efficiency.

[0006] Preferably, vertical guide rails and horizontal guide rails are installed on the vertical plate, and an upper mounting plate is installed on the top thereof, the upper mounting plate is located above the vertical guide rails, and the horizontal guide rails are located below the vertical guide rails; the positioning mechanism is installed on the vertical guide rails, the switching mechanism is installed on the horizontal guide rails, and the control component is installed on the upper mounting plate.

[0007] Preferably, the positioning mechanism includes a moving beam and a first motor, the moving beam is horizontally assembled on the vertical guide rail and can move vertically along the vertical guide rail; the first motor is mounted on the vertical plate, and its transmission shaft extends vertically downward and is connected to a screw rod, the screw rod and the moving beam are engaged through threads, and the screw rod is driven to rotate by the first motor to realize the up and down displacement adjustment of the moving beam on the vertical guide rail; a plurality of positioning cylinders are installed at the bottom of the moving beam, and the positioning cylinders are arranged in a straight line along the long side direction of the moving beam, and a display screen is installed on the outer side wall of each positioning cylinder.

[0008] The positioning cylinder is installed on the outside of the cylinder to form a closed filling space. Its inner wall is designed with thermal insulation material, which can effectively block external heat transfer and prevent liquid oxygen from vaporizing and frosting due to increased temperature. At the same time, it provides physical protection for the cylinder and reduces the risk of collision during the filling process; the outer wall display screen intuitively displays pressure, temperature and other parameters in real time, which facilitates operators to dynamically monitor the filling status and improve human-computer interaction efficiency and operation safety.

[0009] Preferably, the number of the positioning cylinders is the same as the number of the limiting grooves of the base, and the outer ring of each group of limiting grooves is provided with an annular groove, which can be snap-fitted with the bottom end of the corresponding positioning cylinder; The inner wall of the positioning cylinder is evenly distributed with three groups of limiting ribs at the center of the circumference. Each group of limiting ribs is installed with multiple pulleys. When the positioning cylinder descends, it is sleeved on the outside of the cylinder. The limiting ribs and pulleys are adapted to the outer diameter of the cylinder. Through the rolling contact of the pulleys, the cylinder is positioned and limited to prevent it from displacement during the positioning process.

[0010] The snap-fitting fit between the annular groove and the positioning cylinder enhances positioning stability. The rolling contact design between the limiting rib and the pulley reduces wear on the cylinder while ensuring that the cylinder maintains a fixed posture during the filling process, avoiding the risk of docking failure or leakage due to displacement.

[0011] Preferably, the switching mechanism comprises two groups of moving blocks, both of which can move on the horizontal guide rail. A second motor is mounted on the vertical plate, and the second motor is laterally connected to a rotating rod via a transmission shaft. Threads with opposite rotation directions are provided at both ends of the rotating rod, respectively forming threaded transmission cooperation with the two groups of moving blocks. When the second motor is driven, the two groups of moving blocks can achieve synchronous movement toward or away from each other. When the first base and the second base are unfolded, one side of the pin shaft at the hinge is close to the vertical plate, and positioning blocks are installed at the end surfaces of both ends away from the hinge pin shaft, and each positioning block is provided with a through-hole along the vertical direction. Telescopic rods are respectively installed vertically on the two sets of moving blocks, and their protruding ends are set downward; when the telescopic rods are in a retracted state, the moving block and the positioning block are separated from each other; when the telescopic rods are extended, their protruding ends can be inserted into the sockets of the positioning blocks, so that the moving block and the positioning block are plugged in and positioned; As the second motor drives the moving blocks to gather or separate from each other, it can drive the telescopic rod and the positioning block connected thereto to move, thereby realizing the switching of the folding or unfolding state of the first base and the second base. An electric push rod is vertically installed on the vertical plate. When the base is in the unfolded state, the protruding end of the electric push rod points to the pin shaft of the base, and each of the positioning cylinders is directly opposite to each limiting groove one by one.

[0012] The reverse thread design at both ends of the rotating rod realizes synchronous reverse movement of the moving block, ensuring a smooth and symmetrical expansion / folding process of the base; the plug-in positioning of the telescopic rod and the positioning block improves the connection reliability between the switching mechanism and the base, and the electric push rod assisted folding function can break through the mechanical limitations of the straight-line expansion state and improve operational flexibility.

[0013] Preferably, the calibration mechanism includes a turntable for carrying the cylinder, the limiting groove is a circular groove, the top of the center of the circle is provided with a support shaft, the center of the turntable is rotatably connected to the top of the support shaft, and the bottom of the turntable is provided with multiple sets of rollers, which can enable it to rotate flexibly in the groove, and the inner side wall of the limiting groove is vertically provided with a telescopic groove, and the groove is connected to the card strip by an elastic member, and the bottom side wall of the cylinder is vertically provided with a linear groove, and the linear groove and the air inlet nozzle of the cylinder are in the same straight line. When the cylinder is placed on the turntable and rotated, the linear groove and the card strip can be snapped into position. When the base is in the expanded state, the air inlet nozzle faces the direction of the vertical plate, and the top and bottom of the card strip are provided with guide slopes to ensure smooth removal and placement of the cylinder.

[0014] The turntable and roller design makes the rotation and adjustment of the cylinder more convenient. The connection between the clip bar and the linear groove ensures that the direction of the air inlet nozzle is uniformly facing the vertical plate, which is convenient for subsequent docking. The guide slope structure avoids jamming when taking and placing the cylinder, improving operational efficiency and reducing collision damage.

[0015] Preferably, the docking mechanism includes a third motor installed under the moving beam, whose output end is horizontally connected to a rotating shaft parallel to the vertical plate, and each positioning cylinder is horizontally slidably connected to the first rack on the side close to the vertical plate, one end of the rack extends out of the positioning cylinder, and the other end is located inside the positioning cylinder, and the rotating shaft is equipped with a number of first gears equal to the first racks, and each first gear is always engaged with the corresponding first rack located at one end outside the positioning cylinder, and each first rack is installed with a connecting tube, and a docking nozzle is installed at the front end of each group of connecting tubes, and the docking nozzle is located inside the positioning cylinder. When the positioning cylinder is docked with the annular groove on the base, the docking nozzle and the air inlet nozzle are located on the same horizontal plane.

[0016] The rack and pinion transmission enables synchronous horizontal movement of multiple docking nozzles to ensure precise docking with the cylinder air inlet nozzle; the design of the docking nozzle built into the positioning cylinder can avoid external collision, while ensuring the alignment of the axis during docking, improving the filling sealing and reliability.

[0017] Preferably, the control assembly is composed of two groups of cylinders with the same diameter. A plurality of through holes are formed on the end surfaces of the two cylinders, the number of which is consistent with the number of connecting tubes and distributed in the center of the circle. The two groups of cylinders are coaxially connected up and down by a connecting shaft, and are named as the first cylinder and the second cylinder respectively. The first cylinder is fixed to the upper mounting plate, and its upper end surface is connected to the liquid oxygen tank through a pipe. The second cylinder can rotate around the connecting shaft. The contact surfaces of the two cylinders are sealed with rubber sealing rings. When the through holes of the two cylinders are opposite to each other, they are connected to each other. However, when the through holes are staggered when they rotate around the connecting shaft, they form a barrier. The through holes of the second cylinder correspond to the connecting pipes one by one, and a hose is connected between each set of corresponding through holes and connecting pipes. A second gear is provided on the outer wall of the second cylinder, and one end of the electric rod horizontally installed on the vertical plate is connected to the second rack. The second gear and the second rack are engaged with each other. When the electric rod is extended or retracted, the second rack is driven to move left and right. The rotation control of the second cylinder is realized through the meshing transmission of the rack and the second gear, thereby switching the connection or blocking state of the through holes of the first cylinder and the second cylinder.

[0018] The cylindrical through-hole switching structure enables rapid on-off control of the liquid oxygen passage, and the rubber sealing ring ensures sealing performance; the linkage control of the electric rod and the gear rack is responsive and can quickly block liquid oxygen in abnormal situations, preventing leakage or overpressure risks and improving system safety.

[0019] Preferably, the detection components in the alarm mechanism include a pressure sensor, an ultrasonic liquid level probe and an infrared temperature sensor; Pressure sensor: integrated inside the docking nozzle, through the closed chamber formed when docking with the gas inlet nozzle of the cylinder, to detect the pressure changes during the filling process in real time; Ultrasonic liquid level probe: installed on the top of the inner wall of the positioning cylinder, with the probe axis vertically pointing downward at the mouth of the cylinder. It uses non-contact ultrasonic ranging technology to calculate the liquid oxygen level by emitting ultrasonic waves and receiving reflected waves from the liquid surface; Infrared temperature sensor: The circular array is distributed on the limiting ribs on the inner wall of the positioning cylinder. Each sensor faces the outer wall of the cylinder and uses infrared thermal imaging technology to detect the temperature field distribution on the surface of the cylinder in a non-contact manner. Each detection component is electrically connected to the display screen on the corresponding outer wall through the internal wiring of the positioning tube, transmitting and displaying pressure, liquid level and temperature data in real time. When the positioning tube descends to complete the engagement with the cylinder, each sensor automatically aligns to the detection position, realizing non-contact multi-parameter synchronous monitoring. When the parameters are abnormal, the display screen will sound an alarm. The control component has a built-in microprocessor, whose input is connected to each sensor, and whose output is connected to the third motor of the docking mechanism and the electric rod of the control component itself. When the microprocessor determines that any parameter is abnormal (such as pressure exceeding 1.6MPa, liquid level reaching 95% of the filling limit, or temperature fluctuation >5°C / min) based on a preset algorithm, it immediately triggers the following actions: 1. Control the third motor to reverse and drive the docking nozzle and the air inlet nozzle to separate; 2. Control the electric rod to drive the second cylinder to rotate, blocking the liquid oxygen passage; 3. The corresponding display screen activates the sound and light alarm (flashing red + beeping), and the alarm information is pushed synchronously through the main console on the top of the vertical board.

[0020] Multiple types of sensors enable full parameter coverage monitoring of the filling process, and non-contact detection avoids direct contact between sensors and liquid oxygen, thereby increasing service life; microprocessor linkage control can complete multiple actions such as flow interruption, separation, and alarm in the instant of abnormality, forming a fast-response safety protection system to minimize the risk of accidents.

[0021] The present invention provides a liquid oxygen filling device with a warning function, which has the following beneficial effects: Convenient transportation: The base is foldable and can hold multiple cylinders at the same time. It is small in size and occupies little space when folded. The universal wheels at the bottom facilitate short-distance movement, and the forklift slot can be used with a forklift for long-distance transportation, solving the problem of inconvenient cylinder transportation. At the same time, multiple cylinders can be transported at a time, improving transportation efficiency.

[0022] Efficient filling: The cylinders on the expanded base are arranged in a straight line, and the docking mechanism enables the simultaneous automatic filling of multiple cylinders from the liquid oxygen tank, which greatly improves the filling efficiency compared to traditional filling methods. Precise positioning: The calibration mechanism and the positioning mechanism cooperate with each other to accurately adjust and position the cylinder, ensuring that the cylinder's air inlet nozzle and the docking nozzle are accurately docked, ensuring the smooth progress of the filling operation. Safe and reliable: The alarm mechanism uses a variety of sensors to monitor key parameters such as pressure, liquid level, and temperature during the filling process in real time. Once an abnormality occurs, it can respond quickly, separate the docking nozzle, block the liquid oxygen passage, and sound an alarm, effectively avoiding the occurrence of safety accidents and ensuring the safety of the filling operation. The abnormal information is reflected on the display screen on the positioning tube where the abnormal cylinder is located, facilitating workers to carry out efficient maintenance.

[0023] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1It is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic structural diagram of the front side of the base, cylinder positioning mechanism, etc. in the present invention; Figure 3 This is a schematic structural diagram of the rear side of the base, cylinder positioning mechanism, etc. in the present invention; Figure 4 This is a schematic diagram of the structure of the base when it is unfolded in the present invention; Figure 5 Schematic diagram of the structure of the base in the present invention; Figure 6 This is a schematic diagram of the structure of the base when it is folded in the present invention; Figure 7 Schematic diagram of the structure of the switching mechanism in the present invention; Figure 8 is a cross-sectional view of the base in the present invention; Figure 9 Schematic diagram of the structure of the calibration mechanism in the present invention; Figure 10 It is a structural schematic diagram of the inner side wall of the positioning cylinder in the present invention; Figure 11 Schematic diagram of the structure of the docking mechanism in the present invention; Figure 12 Schematic diagram of the structure of the control mechanism of the present invention; Description of the numbers in the figure: 1. Base; 101. First base; 102. Second base; 103. Pin; 104. Limiting groove; 105. Slot; 106. Key; 107. Connecting bolt; 108. Connecting hole; 109. Universal wheel; 110. Positioning block; 111. Socket; 112. Forklift slot; 113. Annular groove; 2. Steel cylinder; 201. Air inlet nozzle; 202. Linear slot; 3. Vertical plate; 301. Vertical guide rail; 302. Horizontal guide rail; 303. Upper mounting plate; 4. Positioning mechanism; 401. Moving beam; 402. Positioning cylinder; 403. Display screen; 404. Limiting rib; 405. Pulley; 406. First motor; 407. Screw; 5. Switching mechanism; 501. Moving block; 502. Telescopic rod; 503. Second motor; 504. Rotating rod; 505. Electric push rod; 6. Calibration mechanism; 601. Turntable; 602. Roller; 603. Support shaft; 604. Telescopic slot; 605. Clip strip; 606. Elastic member; 607. Guide slope; 7. Docking mechanism; 701. Rotating shaft; 702. First gear; 703. First rack; 704. Connecting pipe; 705. Docking nozzle; 706. Third motor; 707. Hose; 8. Control assembly; 801. First cylinder; 802. Second cylinder; 803. Connecting shaft; 804. Through hole; 805. Second gear; 806. Second rack; 807. Electric rod; 9. Alarm agency. DETAILED DESCRIPTION

[0025] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention, and are not to be construed as limiting the present invention.

[0026] like Figures 1-12 The liquid oxygen filling device with a warning function shown in the figure specifically includes the following structure: Base 1: Consists of two rectangular parallelepiped bases, designated first base 101 and second base 102. The tops of both bases are defined by multiple sets of retaining grooves 104 arranged in a straight line along their long edges, and the bottoms of both are fitted with multiple sets of universal wheels 109. A vertical edge of each base is hingedly connected by a pin 103, allowing them to be folded or unfolded around the pin 103. When folded, it forms a rectangular parallelepiped with a constant length and twice the width of a single base. At this point, the mating surfaces of the two sets of bases can be connected in a coordinated manner. The mating surface of the first base 101 is provided with multiple sets of horizontally parallel slots 105, and the mating surface of the second base 102 is provided with a convex snap-on key 106 that matches the slots 105 and the snap-on key 106. The slots 105 and the snap-on key 106 can be snapped into each other. The ends of the mating surfaces of the first base 101 and the second base 102 away from the pin 103 are respectively provided with a protruding snap-on bolt 107 and a corresponding concave snap-on hole 108. The snap-on bolt 107 is inserted into the snap-on hole 108 to achieve precise positioning and a secure connection between the first base 101 and the second base 102 in the folded state. When unfolded, it forms a rectangular parallelepiped with a constant width and twice the length of a single base. In addition, forklift slots 112 are provided along the long sides of the bottoms of the first base 101 and the second base 102 to facilitate forklift transportation.

[0027] There are multiple groups of steel cylinders 2, which are vertically placed in the respective limiting grooves 104, and the top side walls thereof are horizontally provided with air inlet nozzles 201 for realizing liquid oxygen filling operations.

[0028] Vertical plate 3: Installed with a switching mechanism 5 and a positioning mechanism 4. The switching mechanism 5 is used to switch between the folded and unfolded states of the base 1. The positioning mechanism 4 is located above the switching mechanism 5 and can move vertically on the vertical plate 3 to position the cylinders 2 on the base 1. Vertical guide rails 301 and horizontal guide rails 302 are also installed on the vertical plate 3. An upper mounting plate 303 is mounted on top of the vertical guide rails 301, and the horizontal guide rails 302 are located below the vertical guide rails 301. The positioning mechanism 4 is installed on the vertical guide rails 301, the switching mechanism 5 is installed on the horizontal guide rails 302, and the control assembly 8 is installed on the upper mounting plate 303.

[0029] Positioning mechanism 4: includes a moving beam 401 and a first motor 406, the moving beam 401 is horizontally assembled on the vertical guide rail 301, and can move vertically along the vertical guide rail 301; the first motor 406 is installed on the vertical plate 3, and its transmission shaft extends vertically downward and is connected to a screw rod 407, the screw rod 407 is threadedly matched with the moving beam 401, and the screw rod 407 is driven to rotate by the first motor 406, so as to realize the up and down displacement adjustment of the moving beam 401 on the vertical guide rail 301; a plurality of positioning cylinders 402 are installed at the bottom of the moving beam 401, and each positioning cylinder 402 is arranged in a straight line along the long side direction of the moving beam 401, and a display screen 403 is installed on the outer wall of each positioning cylinder 402. The number of positioning cylinders 402 is the same as the number of limiting grooves 104 of the base 1. The outer circle of each group of limiting grooves 104 is provided with a circle of annular grooves 113, and the annular grooves 113 can be snap-fitted with the bottom end of the corresponding positioning cylinder 402; the inner wall of the positioning cylinder 402 is evenly distributed with three groups of limiting ribs 404 at the center of the circumference, and each group of limiting ribs 404 is installed with multiple pulleys 405. When the positioning cylinder 402 descends, it is sleeved on the outside of the cylinder 2. The limiting ribs 404 and the pulleys 405 are adapted to the outer diameter of the cylinder 2. Through the rolling contact of the pulleys 405, the positioning and limiting of the cylinder 2 are achieved to prevent it from displacement during the positioning process.

[0030] Switching mechanism 5: comprises two groups of moving blocks 501, and the two groups of moving blocks 501 can be moved on the horizontal guide rail 302. A second motor 503 is installed on the vertical plate 3, and the second motor 503 is horizontally connected to a rotating rod 504 through a transmission shaft. The two ends of the rotating rod 504 are respectively provided with threads with opposite rotation directions, which form a threaded transmission match with the two groups of moving blocks 501. When the second motor 503 is driven, the two groups of moving blocks 501 can be synchronized to move toward or away from each other; when the first base 101 and the second base 102 are unfolded, the pin 103 at the hinge is close to the vertical plate 3, and the two end faces away from the hinge pin 103 are both installed with positioning blocks 110, and each positioning block 110 is vertically provided with a through socket 111. Telescopic The rod 502 has its protruding end facing downward; when the telescopic rod 502 is in the retracted state, the moving block 501 and the positioning block 110 are separated from each other; when the telescopic rod 502 is extended, its protruding end can be inserted into the socket 111 of the positioning block 110, thereby realizing the plug-in positioning of the moving block 501 and the positioning block 110; as the second motor 503 drives the moving blocks 501 to gather or separate from each other, the telescopic rod 502 and the positioning block 110 plugged therein can be driven to move, thereby realizing the switching of the folding or unfolding state of the first base 101 and the second base 102. An electric push rod 505 is vertically installed on the vertical plate 3. When the base 1 is in the unfolded state, the protruding end of the electric push rod 505 points to the pin shaft 103 of the base 1, and each of the positioning cylinders 402 is directly opposite to each limiting groove 104 one by one.

[0031] The calibration mechanism 6 is provided in each limiting groove 104 of the base 1 and is used to adjust the air inlet nozzles 201 of each cylinder 2 to face the vertical plate 3 in a unified manner. Specifically, the calibration mechanism 6 includes a turntable 601 for carrying the cylinder 2. The limiting groove 104 is a circular groove, and a support shaft 603 is provided at the top of the center of the circle. The center of the turntable 601 is rotatably connected to the top of the support shaft 603. The bottom of the turntable 601 is provided with multiple sets of rollers 602, which can be flexibly rotated in the groove. The inner side wall of the limiting groove 104 is vertically provided with a telescopic groove 604, and the groove is connected to the clamping strip 605 by an elastic member 606 spring. The bottom side wall of the cylinder 2 is vertically provided with a linear groove 202, and the linear groove 202 is in the same straight line as the air inlet nozzle 201 of the cylinder 2. When the cylinder 2 is placed on the turntable 601 and rotated, the linear groove 202 and the clamping strip 605 can be clamped and positioned. When the base 1 is in the unfolded state, the air inlet nozzle 201 is facing the vertical plate 3. The top and bottom of the clamping strip 605 are provided with guide slopes 607 to ensure smooth removal and placement of the cylinder 2.

[0032] The docking mechanism 7 is provided on the positioning mechanism 4 and includes a plurality of docking nozzles 705 for docking and separating the docking nozzles 705 with the air inlet nozzles 201 of the respective cylinders 2 . The docking mechanism 7 includes a third motor 706 installed below the moving beam 401, and its output end is horizontally connected to a rotating shaft 701 parallel to the vertical plate 3. Each positioning cylinder 402 is horizontally slidably connected to a first rack 703 on the side close to the vertical plate 3. One end of the rack extends out of the positioning cylinder 402, and the other end is located inside the positioning cylinder 402. The rotating shaft 701 is equipped with a number of first gears 702 equal to the number of first racks 703. Each first gear 702 is always engaged with the corresponding first rack 703 located at one end outside the positioning cylinder 402. Each first rack 703 is installed with a connecting pipe 704, and a docking nozzle 705 is installed at the front end of each group of connecting pipes 704. The docking nozzle 705 is located inside the positioning cylinder 402. When the positioning cylinder 402 is docked with the annular groove 113 on the base 1, the docking nozzle 705 and the air inlet nozzle 201 are located on the same horizontal plane.

[0033] Alarm mechanism 9: includes a detection component, a display screen 403 and a control component 8. The display screen 403 and the detection component are installed on the positioning mechanism 4 and are used to detect and display real-time parameters during the liquid oxygen filling process. The control component 8 includes an input end and an output end. Its input end is connected to the liquid oxygen tank through a pipeline, and its output end is connected to the docking mechanism 7. When an abnormality occurs, the connection between the input end and the output end is blocked.

[0034] The detection assembly includes a pressure sensor, an ultrasonic level probe, and an infrared temperature sensor. The pressure sensor is integrated within the docking nozzle 705 and, through the sealed chamber formed when docking with the inlet nozzle 201 of the cylinder 2, monitors pressure changes during the filling process in real time. The ultrasonic level probe is mounted on the top of the inner wall of the positioning cylinder 402, with the probe axis vertically downwardly aligned with the mouth of the cylinder 2. It uses non-contact ultrasonic ranging technology to calculate the liquid oxygen level by transmitting ultrasonic waves and receiving reflected waves from the liquid surface. A circular array of infrared temperature sensors is distributed on the limiting ribs 404 on the inner wall of the positioning cylinder 402, with each sensor facing the outer wall of the cylinder 2. Using infrared thermal imaging technology, they non-contactly measure the surface temperature distribution of the cylinder 2. Each detection assembly is electrically connected to the display screen 403 on the corresponding outer wall via internal wiring within the positioning cylinder 402, transmitting and displaying pressure, level, and temperature data in real time. When the positioning cylinder 402 descends to fully engage the cylinder 2, each sensor automatically aligns with the detection position, enabling non-contact, simultaneous monitoring of multiple parameters. If a parameter is abnormal, the display screen 403 issues an alarm.

[0035] Control assembly 8 consists of two sets of cylinders of equal diameter. Each cylinder has multiple sets of through-holes 804 extending through its end faces, the same number as the connecting tubes 704, and distributed along the center of the circle. The two sets of cylinders are coaxially connected vertically by a connecting shaft 803, designated as first cylinder 801 and second cylinder 802. First cylinder 801 is fixed to upper mounting plate 303, its upper end connected to the liquid oxygen tank via a pipe. Second cylinder 802 is rotatable about connecting shaft 803. The contact surfaces of the two cylinders are sealed with a rubber seal. When the through-holes 804 face each other, they communicate. However, when the through-holes 804 intersect as they rotate about connecting shaft 803, they become blocked. The through-holes 804 of second cylinder 802 correspond one-to-one with the connecting tubes 704, and a hose 707 connects each set of through-holes 804 to the connecting tubes 704. A second gear 805 is provided on the outer wall of the second cylinder 802. One end of a horizontally mounted electric rod 807 on the vertical plate 3 is connected to a second rack 806. The second gear 805 and the second rack 806 mesh with each other. When the electric rod 807 is extended or retracted, it drives the second rack 806 to move left and right. The meshing transmission between the rack and the second gear 805 controls the rotation of the second cylinder 802, thereby switching the connection or blockage state of the through-holes 804 of the first cylinder 801 and the second cylinder 802. The control component 8 has a built-in microprocessor, whose input end is connected to various sensors and whose output end is connected to the third motor 706 of the docking mechanism 7 and the electric rod 807 of the control component 8 itself. When the microprocessor determines that any parameter is abnormal (such as pressure exceeding 1.6MPa, liquid level reaching 95% of the filling limit, or temperature fluctuation >5°C / min) based on a preset algorithm, it immediately triggers the following actions: Control the third motor 706 to reverse, driving the docking nozzle 705 to separate from the air inlet nozzle 201; Control the electric rod 807 to drive the second cylinder 802 to rotate, blocking the liquid oxygen passage; The corresponding display screen 403 starts the sound and light alarm (flashing red + beeping), and the alarm information is pushed synchronously through the main console on the top of the vertical plate 3.

[0036] Working process: Cylinder 2 loading and transportation In the initial state, the base 1 is folded. An operator places multiple cylinders 2 vertically within each of the limiting grooves 104 of the base 1. Because the bottom of the turntable 601 within the limiting grooves 104 is equipped with rollers 602, the operator can easily rotate the cylinders 2. When the cylinders 2 are rotated to the appropriate angle, the clip 605 connected by an elastic member 606 within the telescopic groove 604 on the inner sidewall of the limiting groove 104 pops out and engages with the linear groove 202 on the bottom sidewall of the cylinder 2, thereby completing the orientation of the cylinder 2's air inlet nozzle 201. At this point, in the folded state, the air inlet nozzles 201 of the two rows of cylinders 2 on the first and second bases 101, 102, are facing each other. The base 1 loaded with cylinders 2 can then be moved a short distance using the universal wheels 109 at the bottom of the base 1, or transported to the filling area using a forklift inserted into the forklift slot 112 at the bottom of the base 1 and placed near the vertical plate 3.

[0037] Base 1 unfolded and cylinder 2 positioned The end of the base 1 with the positioning block 110 is conveyed toward the vertical plate 3. At this time, the two moving blocks 501 of the switching mechanism 5 are in a gathered state, corresponding one-to-one with the two positioning blocks 110 of the base 1. When the base 1 moves to the position where the two positioning blocks 110 are located at the bottom of the two moving blocks 501, the telescopic rods 502 on the two moving blocks 501 are pushed downward and inserted into the corresponding sockets 111 of the positioning blocks 110, thereby achieving the docking of the switching mechanism 5 and the base 1. Then, the second motor 503 is started to drive the rotating rod 504 to rotate. Since the two ends of the rotating rod 504 are respectively provided with threads with opposite rotation directions, they form a threaded transmission cooperation with the two groups of moving blocks 501. The two moving blocks 501 move to both sides, thereby pulling the base 1 from the folded state to the unfolded state. At this time, the air inlet nozzles 201 of all cylinders 2 are facing the vertical plate 3. Then, the first motor 406 is started, and the screw rod 407 connected to the drive shaft of the first motor 406 extends vertically downward and rotates. Through the threaded engagement of the screw rod 407 with the movable beam 401, the movable beam 401 is driven downward along the vertical guide rail 301. The multiple sets of positioning cylinders 402 installed at the bottom of the movable beam 401 then descend and fit over the outside of each cylinder 2. The multiple pulleys 405 mounted on the inner wall of the positioning cylinders 402, which are evenly distributed around the center of the circumference, are adapted to the outer diameter of the cylinders 2. Through rolling contact with the pulleys 405, the cylinders 2 are precisely positioned and limited, preventing them from displacement during subsequent operations.

[0038] Liquid oxygen filling and monitoring After the positioning cylinder 402 is docked with the annular groove 113 on the base 1, the third motor 706 in the docking mechanism 7 is activated. The output end of the third motor 706, laterally connected to the rotating shaft 701, rotates. The first gear 702 mounted on the rotating shaft 701 engages with the first rack 703 on the positioning cylinder 402, driving the first rack 703 to slide horizontally, causing the docking nozzle 705 at the front end of the connecting pipe 704 mounted on the first rack 703 to move forward and dock with the gas inlet nozzle 201 of the cylinder 2. At this point, the liquid oxygen in the liquid oxygen tank is connected to the input end of the control assembly 8 via a pipe. The control assembly 8 consists of two cylinders of the same diameter (a first cylinder 801 and a second cylinder 802). The first cylinder 801 is fixed to the upper mounting plate 303, its upper end connected to the liquid oxygen tank via a pipe. The second cylinder 802 is rotatable about the connecting shaft 803. The contact surface of the two cylinders is sealed with a rubber sealing ring. When the second cylinder 802 rotates until its through hole 804 is opposite to the through hole 804 of the first cylinder 801, the liquid oxygen passes through the first cylinder 801, the second cylinder 802, the hose 707, the connecting pipe 704 in sequence, and enters the cylinder 2 from the docking nozzle 705, realizing the simultaneous filling operation of the liquid oxygen tank into multiple cylinders 2.

[0039] During the filling process, the detection components function in real time. A pressure sensor, integrated within the docking nozzle 705, forms a sealed chamber when docked with the inlet nozzle 201 of the cylinder 2, monitoring pressure changes during the filling process in real time. An ultrasonic level probe, mounted on the top of the inner wall of the positioning cylinder 402, utilizes non-contact ultrasonic ranging technology to calculate the liquid oxygen level by emitting ultrasonic waves and receiving reflected waves from the liquid surface. A circular array of infrared temperature sensors, distributed along the retaining ribs 404 on the inner wall of the positioning cylinder 402, utilizes infrared thermal imaging technology to non-contactly monitor the surface temperature distribution of the cylinder 2. Each detection component is electrically connected to the corresponding display screen 403 on the outer wall of the positioning cylinder 402 via internal wiring, transmitting and displaying pressure, level, and temperature data in real time. The microprocessor within the control component 8 receives data from each sensor in real time and makes decisions based on a pre-set algorithm. When any parameter is abnormal, such as the pressure exceeds 1.6MPa, the liquid level reaches 95% of the filling limit, or the temperature fluctuates by more than 5℃ / min, the microprocessor immediately controls the electric rod 807 to drive the second cylinder 802 to rotate, so that the through holes 804 of the two cylinders are staggered, blocking the liquid oxygen passage; at the same time, the third motor 706 is controlled to reverse and drive the docking nozzle 705 to separate from the air inlet nozzle 201; the corresponding display screen 403 activates the sound and light alarm (flashing red + buzzing), and the alarm information is simultaneously pushed through the main console on the top of the vertical plate 3 to ensure the safety of the filling operation.

[0040] Filling is completed and the base 1 is folded When all cylinders 2 are filled, the first motor 406 is activated, causing the movable beam 401 to rise and the positioning cylinder 402 to separate from the cylinder 2. Next, the second motor 503 is activated again, driving the rotating rod 504 to rotate, causing the two movable blocks 501 to converge. Since the base 1 is in a straight line shape in the expanded state, it cannot be switched to the folded state directly by the opposite movement of the movable blocks 501. At this time, the electric push rod 505 vertically mounted on the vertical plate 3 is pushed out, pushing the pin 103 at the hinge of the base 1, forming an angle between the first base 101 and the second base 102. At this time, when the two movable blocks 501 converge, the base 1 can be restored from the expanded state to the folded state, ultimately making the other two surfaces of the first base 101 and the second base 102 contact. Finally, the two telescopic rods 502 of the switching mechanism 5 retract and completely separate from the base 1. The operator can then push the base 1 away or use a forklift to remove it for the next round of filling operations.

[0041] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A liquid oxygen filling device with a warning function, characterized in that ,include: Base (1): It is composed of two groups of bases, both of which are rectangular parallelepipeds. The tops of the two groups of bases are provided with a plurality of limiting grooves (104) arranged in a straight line along the long sides, and the bottoms are provided with a plurality of universal wheels (109). A pin (103) is hinged between one vertical edge of the two groups of bases, so that the two groups of bases can be rotated around the pin (103) to be folded or unfolded. When folded, they form a rectangular parallelepiped with a constant length and a width twice that of a single base; when unfolded, they form a rectangular parallelepiped with a constant width and a length twice that of a single base. Steel cylinders (2): multiple groups are provided, each of which is vertically placed in each of the limiting grooves (104), and an air inlet nozzle (201) is horizontally provided on the top side wall thereof for realizing liquid oxygen filling operation; The vertical plate (3) is provided with a switching mechanism (5) and a positioning mechanism (4), wherein the switching mechanism (5) is used to switch the base (1) between the folding state and the unfolding state; the positioning mechanism (4) is located above the switching mechanism (5) and can move vertically on the vertical plate (3) to position each cylinder (2) on the base (1); Calibration mechanism (6): provided in each limiting groove (104) of the base (1), used for adjusting the air inlet nozzle (201) of each cylinder (2) to be uniformly oriented toward the vertical plate (3); Docking mechanism (7): provided on the positioning mechanism (4), comprising a plurality of docking nozzles (705), used for docking and separating the docking nozzles (705) with the air inlet nozzles (201) of the respective cylinders (2); The alarm mechanism (9) comprises a detection component, a display screen (403) and a control component (8), wherein the display screen (403) and the detection component are mounted on the positioning mechanism (4) and are used to detect and display real-time parameters during the liquid oxygen filling process. The control component (8) comprises an input end and an output end, wherein the input end is connected to the liquid oxygen tank via a pipeline, and the output end is connected to the docking mechanism (7). When an abnormality occurs, the connection between the input end and the output end is blocked.

2. The liquid oxygen filling device with a warning function according to claim 1, characterized in that: The two groups of bases are respectively a first base (101) and a second base (102); when the first base (101) and the second base (102) are folded relative to each other, the butting surfaces of the two can be matched and connected; The first base (101) has a plurality of horizontally parallel arranged slots (105) on its docking surface, and the second base (102) has a convex latching key (106) adapted thereto, and the slots (105) and the latching key (106) can be latched with each other; A protruding clamping bolt (107) and a corresponding concave clamping hole (108) are respectively provided at one end of the mating surface of the first base (101) and the second base (102) away from the pin shaft (103), and the clamping bolt (107) is inserted into the clamping hole (108) to achieve precise positioning and stable connection of the first base (101) and the second base (102) in a folded state; A forklift slot (112) is provided through the bottom of each of the first base (101) and the second base (102) along the long side direction.

3. The liquid oxygen filling device with a warning function according to claim 2, characterized in that: A vertical guide rail (301) and a horizontal guide rail (302) are installed on the vertical plate (3), and an upper mounting plate (303) is installed on the top thereof. The upper mounting plate (303) is located above the vertical guide rail (301), and the horizontal guide rail (302) is located below the vertical guide rail (301); the positioning mechanism (4) is installed on the vertical guide rail (301), the switching mechanism (5) is installed on the horizontal guide rail (302), and the control component (8) is installed on the upper mounting plate (303).

4. The liquid oxygen filling device with a warning function according to claim 3, characterized in that: The positioning mechanism (4) includes a moving beam (401) and a first motor (406). The moving beam (401) is horizontally mounted on the vertical guide rail (301) and can move vertically along the vertical guide rail (301). The first motor (406) is mounted on the vertical plate (3). The transmission shaft of the first motor (406) extends vertically downward and is connected to a screw rod (407). The screw rod (407) is threadedly engaged with the moving beam (401). The screw rod (407) is driven to rotate by the first motor (406), thereby realizing the vertical displacement adjustment of the moving beam (401) on the vertical guide rail (301). A plurality of positioning cylinders (402) are mounted on the bottom of the moving beam (401). The positioning cylinders (402) are arranged in a straight line along the long side direction of the moving beam (401). A display screen (403) is mounted on the outer wall of each positioning cylinder (402).

5. The liquid oxygen filling device with a warning function according to claim 4, characterized in that: The number of the positioning cylinders (402) is the same as the number of the limiting grooves (104) of the base (1), and the outer ring of each group of limiting grooves (104) is provided with a circle of annular grooves (113), and the clamping grooves (105) can be clamped with the bottom ends of the corresponding positioning cylinders (402); The inner wall of the positioning cylinder (402) is evenly distributed with three groups of limiting ribs (404) at the center of the circumference. A plurality of pulleys (405) are installed on each group of limiting ribs (404). When the positioning cylinder (402) descends, it is sleeved on the outside of the steel cylinder (2). The limiting ribs (404) and the pulleys (405) are adapted to the outer diameter of the steel cylinder (2). The pulleys (405) are in rolling contact with each other to achieve positioning and limiting of the steel cylinder (2), thereby preventing displacement during the positioning process.

6. The liquid oxygen filling device with a warning function according to claim 5, characterized in that: The switching mechanism (5) comprises two groups of moving blocks (501), both of which can move on the horizontal guide rail (302). A second motor (503) is installed on the vertical plate (3), and the second motor (503) is laterally connected to a rotating rod (504) via a transmission shaft. The rotating rod (504) has threads with opposite rotation directions at both ends, which respectively form thread transmission cooperation with the two groups of moving blocks (501). When the second motor (503) is driven, the two groups of moving blocks (501) can achieve synchronous movement toward or away from each other; When the first base (101) and the second base (102) are unfolded, one side of the pin shaft (103) at the hinge is close to the vertical plate (3), and positioning blocks (110) are installed at both end surfaces away from the hinge pin shaft (103), and each positioning block (110) is provided with a through-hole (111) in the vertical direction. Telescopic rods (502) are respectively installed vertically on the two groups of moving blocks (501), and their extended ends are arranged downward; when the telescopic rods (502) are in a retracted state, the moving block (501) and the positioning block (110) are separated from each other; when the telescopic rods (502) are extended, the extended ends can be inserted into the sockets (111) of the positioning block (110), thereby realizing the plug-in positioning of the moving block (501) and the positioning block (110); As the second motor (503) drives the moving blocks (501) to gather together or separate from each other, the telescopic rod (502) and the positioning block (110) plugged therein can be driven to move, thereby realizing the switching of the folding or unfolding state of the first base (101) and the second base (102). An electric push rod (505) is vertically installed on the vertical plate (3). When the base (1) is in the unfolded state, the extended end of the electric push rod (505) points to the pin shaft (103) of the base (1), and each of the positioning cylinders (402) is vertically aligned with each limiting groove (104).

7. The liquid oxygen filling device with a warning function according to claim 1, characterized in that: The calibration mechanism (6) includes a turntable (601) for carrying the cylinder (2). The limiting groove (104) is a circular groove, and a support shaft (603) is provided at the top of the center of the circle. The center of the turntable (601) is rotatably connected to the top of the support shaft (603). The bottom of the turntable (601) is provided with multiple groups of rollers (602) so that it can rotate flexibly in the groove. The inner side wall of the limiting groove (104) is vertically provided with a telescopic groove (604), and the groove is connected to the clamping strip (605) through an elastic member (606). The bottom side wall of the steel cylinder (2) is vertically provided with a linear groove (202), and the linear groove (202) and the air inlet nozzle (201) of the steel cylinder (2) are in the same straight line. When the steel cylinder (2) is placed on the turntable (601) and rotated, the linear groove (202) and the clamping strip (605) can be clamped and positioned. When the base (1) is in the unfolded state, the air inlet nozzle (201) faces the vertical plate (3). The top and bottom of the clamping strip (605) are both provided with guide slopes (607) to ensure that the steel cylinder (2) can be taken in and out smoothly.

8. The liquid oxygen filling device with a warning function according to claim 4, characterized in that: The docking mechanism (7) includes a third motor (706) installed below the moving beam (401), the output end of which is horizontally connected to a rotating shaft (701) parallel to the vertical plate (3), and each positioning cylinder (402) is horizontally slidably connected to a first rack (703) on one side close to the vertical plate (3), one end of the rack extending out of the positioning cylinder (402) and the other end located inside the positioning cylinder (402), and the rotating shaft (701) is equipped with the same number of first gears (702) as the first racks (703), and each first gear (702) is connected to the first rack (703) in a horizontal manner. The gear (702) is always engaged with the corresponding first rack (703) located at one end outside the positioning cylinder (402), and each first rack (703) is installed with a connecting tube (704). The front end of each group of connecting tubes (704) is installed with a docking nozzle (705), and the docking nozzle (705) is located inside the positioning cylinder (402). When the positioning cylinder (402) is docked with the annular groove (113) on the base (1), the docking nozzle (705) and the air inlet nozzle (201) are located on the same horizontal plane.

9. The liquid oxygen filling device with a warning function according to claim 8, characterized in that: The control assembly (8) is composed of two groups of cylinders of the same diameter. The end surfaces of the two cylinders are penetrated by a plurality of through holes (804), the number of which is the same as the number of the connecting tubes (704) and is distributed in the center of the circle. The two groups of cylinders are connected coaxially up and down by a connecting shaft (803), and are respectively named the first cylinder (801) and the second cylinder (802); The first cylinder (801) is fixed to the upper mounting plate (303), and its upper end surface is connected to the liquid oxygen tank through a pipeline. The second cylinder (802) can rotate around the connecting shaft (803). The contact surfaces of the two cylinders are sealed with a rubber sealing ring. When the through holes (804) of the two cylinders are opposite to each other, they are connected to each other. When the through holes (804) are staggered by rotating around the connecting shaft (803), a barrier is formed. The through holes (804) of the second cylinder (802) correspond to the connecting pipe (704) one by one, and each group of corresponding through holes (804) and the connecting pipe (704) are connected with a hose (707). A second gear (805) is provided on the outer wall of the second cylinder (802), and one end of an electric rod (807) installed horizontally on the vertical plate (3) is connected to the second rack (806). The second gear (805) and the second rack (806) are meshed with each other. When the electric rod (807) is extended or retracted, the second rack (806) is driven to move left and right. Through the meshing transmission between the rack and the second gear (805), the rotation control of the second cylinder (802) is realized, thereby switching the connection or blocking state of the through holes (804) on the first cylinder (801) and the second cylinder (802).

10. A liquid oxygen filling device with a warning function according to any one of claims 1 to 9, characterized in that: The detection components in the alarm mechanism (9) include a pressure sensor, an ultrasonic liquid level probe and an infrared temperature sensor; A pressure sensor is integrated into the docking nozzle (705) and detects pressure changes during the filling process in real time through a sealed chamber formed when docking with the air inlet nozzle (201) of the cylinder (2); Ultrasonic liquid level probe: installed on the top of the inner wall of the positioning cylinder (402), with the probe axis vertically pointing downward to the bottle mouth of the steel cylinder (2), using non-contact ultrasonic ranging technology to calculate the liquid oxygen level by emitting ultrasonic waves and receiving liquid surface reflection waves; Infrared temperature sensor: a ring array is distributed on the limiting rib (404) on the inner wall of the positioning cylinder (402), each sensor faces the outer wall of the cylinder (2), and uses infrared thermal imaging technology to non-contactly detect the surface temperature field distribution of the cylinder (2); Each detection component is electrically connected to the display screen (403) on the corresponding outer wall through the internal wiring of the positioning cylinder (402), and the pressure, liquid level and temperature data are transmitted and displayed in real time; when the positioning cylinder (402) is lowered to complete the engagement with the cylinder (2), each sensor automatically aligns with the detection position, realizing contactless multi-parameter synchronous monitoring, and when the parameters are abnormal, the display screen (403) issues an alarm.

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