阅读说明：本技术 一种液氧自动灌注设备 (Automatic liquid oxygen filling equipment ) 是由 申正芹 于 2021-01-05 设计创作，主要内容包括：本发明公开了一种液氧自动灌注设备,包括机身以及所述机身底端固定连接有的底座,所述机身内设置有液氧腔,所述液氧腔内储存有液氧,所述底座上方设置有液氧储存罐,所述液氧储存罐内设置有储存腔,所述机身内在所述液氧腔底端可上下滑动的设置有灌注枪,所述灌注枪内部设置有灌注腔,所述灌注枪左侧在所述机身内设置有传动腔,液氧储存罐顶端可上下滑动的设置有灌注嘴,灌注嘴内设置有进氧腔,本发明提供的一种液氧自动灌注设备,设备结构简单,操作方便,可以实现对液氧的自动灌注,各个工序之间相互配合而又不影响,可在液氧灌注过程中根据测得压力值自动调节储存罐内的压力,过程方便快捷,有效的避免了人力物力的浪费,从而大幅减少成本。(The invention discloses a liquid oxygen automatic filling device, which comprises a machine body and a base fixedly connected with the bottom end of the machine body, wherein a liquid oxygen cavity is arranged in the machine body, liquid oxygen is stored in the liquid oxygen cavity, a liquid oxygen storage tank is arranged above the base, a storage cavity is arranged in the liquid oxygen storage tank, a filling gun is arranged in the machine body and can slide up and down at the bottom end of the liquid oxygen cavity, a filling cavity is arranged in the filling gun, a transmission cavity is arranged in the machine body on the left side of the filling gun, a filling nozzle is arranged at the top end of the liquid oxygen storage tank and can slide up and down, and an oxygen inlet cavity is arranged in the filling nozzle. The process is convenient and fast, the waste of manpower and material resources is effectively avoided, and the cost is greatly reduced.)

1. The utility model provides an automatic filling equipment of liquid oxygen, include the fuselage and the base that fuselage bottom fixed connection has, its characterized in that: the machine body is internally provided with a liquid oxygen cavity, liquid oxygen is stored in the liquid oxygen cavity, a liquid oxygen storage tank is arranged above the base, a storage cavity is arranged in the liquid oxygen storage tank, a filling gun is arranged in the machine body and can slide up and down at the bottom end of the liquid oxygen cavity, a filling cavity is arranged in the filling gun, a transmission cavity is arranged in the machine body on the left side of the filling gun, a filling nozzle is arranged at the top end of the liquid oxygen storage tank and can slide up and down, an oxygen inlet cavity is arranged in the filling nozzle, a motor is fixedly arranged at the left part of the bottom end of the base, a motor shaft is rotatably arranged in the motor, a first bevel gear is fixedly connected to the motor shaft, the first bevel gear is meshed with a second bevel gear, the second bevel gear is fixedly connected to a first gear shaft, the first gear shaft is rotatably connected to the base, and a first gear is fixedly, the first gear is provided with a transmission device, and the transmission device is used for conveying away the liquid oxygen storage tank after liquid oxygen infusion is finished; the top of the motor shaft is a worm shaft, the top end of the motor shaft is meshed with a worm wheel in the transmission cavity, the worm wheel is fixedly connected to a worm wheel shaft, the worm wheel shaft is rotatably connected to the machine body, a third gear is fixedly connected to the worm wheel shaft behind the worm wheel, the right side of the third gear is meshed with a fourth gear, and a transmission device is arranged on the fourth gear and realizes automatic liquid oxygen filling in the liquid oxygen storage tank through reciprocating transmission; the bottom end of the perfusion gun is fixedly connected with a perfusion gun seat, a perfusion device is arranged in the perfusion gun seat, and the perfusion device automatically perfuses the liquid oxygen stored in the liquid oxygen cavity into the liquid oxygen storage tank through pressure; the bottom end of the filling nozzle is fixedly connected with a sealing plate, the bottom end of the oxygen inlet cavity is provided with an oxygen inlet hole, the filling nozzle is elastically connected to the top end of the liquid oxygen storage tank through a filling nozzle spring, the bottom of the top end of the filling nozzle is fixedly connected with two magnets in a bilateral symmetry manner, the magnets are provided with pressure regulating devices, and the pressure regulating devices are used for automatically controlling and regulating pressure according to the pressure value in the storage cavity; the top end of the machine body is fixedly provided with a pressurizer, and the bottom end of the pressurizer is fixedly connected with a pressurizing pipe in the liquid oxygen cavity.

2. The automatic liquid oxygen filling apparatus according to claim 1, wherein: the conveying device comprises a first gear, the right side of the first gear is meshed with a second gear, the second gear is fixedly connected to a second gear shaft, the second gear shaft is rotatably connected to the base, a driving roller is fixedly connected to the second gear shaft in front of the second gear, a conveying belt is abutted to the driving roller, the right end of the conveying belt is abutted to a driven roller, the driven roller is fixedly connected to a driven roller shaft, and the driven roller shaft is rotatably connected to the base.

3. The automatic liquid oxygen filling apparatus according to claim 1, wherein: the transmission device comprises the fourth gear, the fourth gear is rotationally connected to a fourth gear shaft, the fourth gear shaft is fixedly connected to the machine body, the right side of the fourth gear is meshed with a fifth gear, the fifth gear is fixedly connected to a fifth gear shaft, the fifth gear shaft is rotationally connected to the machine body, the foremost end of the fifth gear shaft is fixedly connected with a rotary table, a rotary rod is fixedly connected to the fifth gear shaft between the rotary table and the fifth gear, one end of the rotary rod is fixedly connected with a sliding rod, the sliding rod can slide in a groove wheel, the groove wheel is fixedly connected to a groove wheel shaft, the groove wheel shaft is rotationally connected to the machine body, a sixth gear is fixedly connected to the groove wheel shaft behind the groove wheel, the right side of the sixth gear is meshed with a seventh gear, and the seventh gear is fixedly connected to a seventh gear shaft, the seventh gear shaft is rotatably connected to the machine body, the right side of the seventh gear is meshed with an eighth gear, the eighth gear is fixedly connected to an eighth gear shaft, the eighth gear shaft is rotatably connected to the machine body, a first incomplete gear is fixedly connected to the eighth gear shaft in front of the eighth gear, the lower side of the eighth gear is meshed with a ninth gear, the ninth gear is fixedly connected to a ninth gear shaft, the ninth gear shaft is rotatably connected to the machine body, a second incomplete gear is fixedly connected to the ninth gear shaft in front of the ninth gear, the right sides of the first incomplete gear and the second incomplete gear can both be meshed with a tenth gear, the tenth gear is fixedly connected to a tenth gear shaft, the tenth gear shaft is rotatably connected to the machine body, and the right side of the tenth gear is meshed with a perfusion gun rack, the filling gun rack is fixedly connected and arranged at the left end of the filling gun.

4. The automatic liquid oxygen filling apparatus according to claim 1, wherein: the perfusion device comprises a perfusion gun seat, a perfusion gun valve plate is arranged in the perfusion gun seat and can slide left and right at the bottom end of the perfusion cavity, the valve plate of the filling gun is provided with a valve port, the lower part of the right end of the valve plate of the filling gun is meshed with an eleventh gear, the eleventh gear is fixedly connected to an eleventh gear shaft, the eleventh gear shaft is rotatably connected to the perfusion gun seat, a twelfth gear is fixedly connected to the eleventh gear shaft in front of the eleventh gear, the right side of the twelfth gear is meshed with a rack arranged on the left side of the spring rack ejector rod, the spring rack mandril can be arranged in the filling gun seat in a vertically sliding way and penetrates through the filling gun seat from the lower part, the top end of the spring rack ejector rod is elastically connected to the filling gun seat through a rack ejector rod spring, and a filling gun opening is fixedly formed in the bottom end of the filling gun valve plate in the filling gun seat.

5. The automatic liquid oxygen filling apparatus according to claim 1, wherein: the pressure regulating device comprises magnet, the magnet below is in liquid oxygen holding vessel top fixedly connected with magnet motor, magnet motor top fixedly connected with electro-magnet, it is inherent to store the chamber must fixedly connected with pressure sensor in the left side of liquid oxygen holding vessel, the pressure sensor left end is connected with the manometer seat, the manometer seat runs through the liquid oxygen holding vessel, manometer seat left end top fixedly connected with manometer, the manometer rotates and is connected with the pointer axle, epaxial fixedly connected with pressure pointer of pointer, manometer right-hand member top fixedly connected with pressure trigger switch.

Technical Field

The invention relates to the field of liquid oxygen storage tanks, in particular to automatic liquid oxygen filling equipment.

Background

In the industrial gas trade, it is lower to prepare liquid oxygen manufacturing cost through cryogenic separation air, therefore liquid oxygen abandons in the general evacuation of partial shipment in-process tail gas, liquid oxygen fills the dress and is implemented through utilizing the pressure differential among the prior art, the liquid pipeline of liquid oxygen storage tank communicates with each other with the liquid pipeline connection of low temperature adiabatic gas cylinder promptly, open the gaseous blow-down pipeline of low temperature adiabatic gas cylinder and make gas cylinder pressure be less than the pressure of liquid oxygen storage tank, liquid oxygen flows into low temperature adiabatic gas cylinder, the too big danger that easily takes place of pressure of liquid oxygen storage tank, because present technique liquid oxygen fills mostly needs manual operation, need an automatic liquid oxygen who can automatic pressure regulating and fills the equipment now.

Disclosure of Invention

The invention aims to provide liquid oxygen automatic filling equipment, which can overcome the problems.

The technical scheme adopted by the invention for solving the technical problems is as follows: an automatic liquid oxygen filling device comprises a machine body and a base fixedly connected with the bottom end of the machine body, wherein a liquid oxygen cavity is arranged in the machine body, liquid oxygen is stored in the liquid oxygen cavity, a liquid oxygen storage tank is arranged above the base, a storage cavity is arranged in the liquid oxygen storage tank, a filling gun is arranged in the machine body and can slide up and down at the bottom end of the liquid oxygen cavity, a filling cavity is arranged in the filling gun, a transmission cavity is arranged in the machine body on the left side of the filling gun, a filling nozzle is arranged at the top end of the liquid oxygen storage tank and can slide up and down, an oxygen inlet cavity is arranged in the filling nozzle, a motor is fixedly arranged at the left part of the bottom end of the base, a motor shaft is rotatably arranged in the motor, a first bevel gear is fixedly connected onto the motor shaft, the first bevel gear is meshed with a second bevel, the first gear shaft is rotatably connected to the base, a first gear is fixedly connected to the first gear shaft behind the second bevel gear, and a transmission device is arranged on the first gear and used for conveying away the liquid oxygen storage tank after liquid oxygen filling is completed; the top of the motor shaft is a worm shaft, the top end of the motor shaft is meshed with a worm wheel in the transmission cavity, the worm wheel is fixedly connected to a worm wheel shaft, the worm wheel shaft is rotatably connected to the machine body, a third gear is fixedly connected to the worm wheel shaft behind the worm wheel, the right side of the third gear is meshed with a fourth gear, and a transmission device is arranged on the fourth gear and realizes automatic liquid oxygen filling in the liquid oxygen storage tank through reciprocating transmission; the bottom end of the perfusion gun is fixedly connected with a perfusion gun seat, a perfusion device is arranged in the perfusion gun seat, and the perfusion device automatically perfuses the liquid oxygen stored in the liquid oxygen cavity into the liquid oxygen storage tank through pressure; the bottom end of the filling nozzle is fixedly connected with a sealing plate, the bottom end of the oxygen inlet cavity is provided with an oxygen inlet hole, the filling nozzle is elastically connected to the top end of the liquid oxygen storage tank through a filling nozzle spring, the bottom of the top end of the filling nozzle is fixedly connected with two magnets in a bilateral symmetry manner, the magnets are provided with pressure regulating devices, and the pressure regulating devices are used for automatically controlling and regulating pressure according to the pressure value in the storage cavity; the top end of the machine body is fixedly provided with a pressurizer, and the bottom end of the pressurizer is fixedly connected with a pressurizing pipe in the liquid oxygen cavity.

Furthermore, the conveying device comprises the first gear, the right side of the first gear is meshed with the second gear, the second gear is fixedly connected to a second gear shaft, the second gear shaft is rotatably connected to the base, a driving roller is fixedly connected to the second gear shaft in front of the second gear, a conveying belt is abutted to the driving roller, the right end of the conveying belt is abutted to a driven roller, the driven roller is fixedly connected to a driven roller shaft, and the driven roller shaft is rotatably connected to the base.

Further, the transmission device includes the fourth gear, the fourth gear is rotatably connected to a fourth gear shaft, the fourth gear shaft is fixedly connected to the machine body, the right side of the fourth gear is engaged with a fifth gear, the fifth gear is fixedly connected to a fifth gear shaft, the fifth gear shaft is rotatably connected to the machine body, a rotary table is fixedly connected to the foremost end of the fifth gear shaft, a rotary rod is fixedly connected to the fifth gear shaft between the rotary table and the fifth gear, one end of the rotary rod is fixedly connected to a sliding rod, the sliding rod can slide in a sheave, the sheave is fixedly connected to a sheave shaft, the sheave shaft is rotatably connected to the machine body, a sixth gear is fixedly connected to the sheave shaft behind the sheave, the right side of the sixth gear is engaged with a seventh gear, and the seventh gear is fixedly connected to a seventh gear shaft, the seventh gear shaft is rotatably connected to the machine body, the right side of the seventh gear is meshed with an eighth gear, the eighth gear is fixedly connected to an eighth gear shaft, the eighth gear shaft is rotatably connected to the machine body, a first incomplete gear is fixedly connected to the eighth gear shaft in front of the eighth gear, the lower side of the eighth gear is meshed with a ninth gear, the ninth gear is fixedly connected to a ninth gear shaft, the ninth gear shaft is rotatably connected to the machine body, a second incomplete gear is fixedly connected to the ninth gear shaft in front of the ninth gear, the right sides of the first incomplete gear and the second incomplete gear can both be meshed with a tenth gear, the tenth gear is fixedly connected to a tenth gear shaft, the tenth gear shaft is rotatably connected to the machine body, and the right side of the tenth gear is meshed with a perfusion gun rack, the filling gun rack is fixedly connected and arranged at the left end of the filling gun.

Further, the perfusion device comprises a perfusion gun seat, a perfusion gun valve plate is arranged in the perfusion gun seat and can slide left and right at the bottom end of the perfusion cavity, the valve plate of the filling gun is provided with a valve port, the lower part of the right end of the valve plate of the filling gun is meshed with an eleventh gear, the eleventh gear is fixedly connected to an eleventh gear shaft, the eleventh gear shaft is rotatably connected to the perfusion gun seat, a twelfth gear is fixedly connected to the eleventh gear shaft in front of the eleventh gear, the right side of the twelfth gear is meshed with a rack arranged on the left side of the spring rack ejector rod, the spring rack mandril can be arranged in the filling gun seat in a vertically sliding way and penetrates through the filling gun seat from the lower part, the top end of the spring rack ejector rod is elastically connected to the filling gun seat through a rack ejector rod spring, and a filling gun opening is fixedly formed in the bottom end of the filling gun valve plate in the filling gun seat.

Further, the pressure regulating device includes magnet, the magnet below is in liquid oxygen holding vessel top fixedly connected with magnet motor, magnet motor top fixedly connected with electro-magnet, it is inherent to store the chamber must fixedly connected with pressure sensor in the left side of liquid oxygen holding vessel, the pressure sensor left end is connected with the manometer seat, the manometer seat runs through the liquid oxygen holding vessel, manometer seat left end top fixedly connected with manometer, the manometer rotates and is connected with the pointer axle, epaxial fixedly connected with pressure pointer of pointer, manometer right-hand member top fixedly connected with pressure trigger switch.

The invention has the beneficial effects that: the utility model provides an automatic equipment that fills of liquid oxygen, equipment structure is simple, and convenient operation can realize filling the automation of liquid oxygen, mutually supports and does not influence between each process, can fill the in-process according to the pressure that measures in the pressure value automatically regulated holding vessel at liquid oxygen, and process convenient and fast has effectually avoided the waste of manpower and materials to reduce the cost by a wide margin.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic view of the overall structure of an automatic liquid oxygen filling apparatus according to the present invention.

Fig. 2 is an enlarged schematic view of a in fig. 1.

Fig. 3 is an enlarged schematic view of B in fig. 1.

Fig. 4 is an enlarged schematic view of C in fig. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

Referring to the accompanying drawings 1-4, an automatic liquid oxygen filling apparatus includes a main body 11 and a base 14 fixedly connected to the bottom end of the main body 11, wherein a liquid oxygen chamber 91 is provided in the main body 11, liquid oxygen is stored in the liquid oxygen chamber 91, a liquid oxygen storage tank 13 is provided above the base 14, a storage chamber 92 is provided in the liquid oxygen storage tank 13, a filling gun 26 is provided in the main body 11 and the bottom end of the liquid oxygen chamber 91 can slide up and down, a filling chamber 93 is provided in the filling gun 26, a transmission chamber 94 is provided in the main body 11 on the left side of the filling gun 26, a filling nozzle 72 is provided at the top end of the liquid oxygen storage tank 13 and can slide up and down, an oxygen inlet chamber 95 is provided in the filling nozzle 72, a motor 22 is fixedly provided at the left end of the base 14, a motor shaft 12 is rotatably provided in the motor 22, and a first bevel gear 21 is fixedly connected to, the first bevel gear 21 is meshed with the second bevel gear 19, the second bevel gear 19 is fixedly connected to a first gear shaft 20, the first gear shaft 20 is rotatably connected to the base 14, a first gear 18 is fixedly connected to the first gear shaft 20 behind the second bevel gear 19, a transmission device 101 is arranged on the first gear 18, and the transmission device 101 is used for conveying away the liquid oxygen storage tank 13 after liquid oxygen infusion is completed; the top of the motor shaft 12 is a worm shaft, the top end of the motor shaft 12 is meshed with a worm gear 32 in the transmission cavity 94, the worm gear 32 is fixedly connected to a worm gear shaft 33, the worm gear shaft 33 is rotatably connected to the machine body 11, a third gear 31 is fixedly connected to the worm gear shaft 33 behind the worm gear 32, the right side of the third gear 31 is meshed with a fourth gear 34, a transmission device 102 is arranged on the fourth gear 34, and the transmission device 102 realizes automatic liquid oxygen filling in the liquid oxygen storage tank 13 through reciprocating transmission; the bottom end of the filling gun 26 is fixedly connected with a filling gun seat 58, a filling device 103 is arranged in the filling gun seat 58, and the filling device 103 automatically fills the liquid oxygen stored in the liquid oxygen cavity 91 into the liquid oxygen storage tank 13 through pressure; the bottom end of the filling nozzle 72 is fixedly connected with a sealing plate 67, the bottom end of the oxygen inlet cavity 95 is provided with an oxygen inlet hole 71, the filling nozzle 72 is elastically connected to the top end of the liquid oxygen storage tank 13 through a filling nozzle spring 75, the bottom of the top end of the filling nozzle 72 is bilaterally and symmetrically and fixedly connected with two magnets 76, the magnets 76 are provided with pressure regulating devices 104, and the pressure regulating devices 104 are used for automatically controlling and regulating pressure according to the pressure value in the storage cavity 92; the top end of the machine body 11 is fixedly provided with a pressurizer 28, and the bottom end of the pressurizer 28 is fixedly connected with a pressurizing pipe 27 in the liquid oxygen cavity 91.

Advantageously, the conveying device 101 includes the first gear 18, the right side of the first gear 18 is engaged with the second gear 15, the second gear 15 is fixedly connected to a second gear shaft 16, the second gear shaft 16 is rotatably connected to the base 14, a driving roller 17 is fixedly connected to the second gear shaft 16 in front of the second gear 15, a conveyor belt 23 abuts on the driving roller 17, the right end of the conveyor belt 23 abuts on a driven roller 24, the driven roller 24 is fixedly connected to a driven roller shaft 25, and the driven roller shaft 25 is rotatably connected to the base 14.

Advantageously, the transmission device 102 includes the fourth gear 34, the fourth gear 34 is rotatably connected to a fourth gear shaft 35, the fourth gear shaft 35 is fixedly connected to the body 11, the right side of the fourth gear 34 is engaged with a fifth gear 36, the fifth gear 36 is fixedly connected to a fifth gear shaft 37, the fifth gear shaft 37 is rotatably connected to the body 11, a rotary table 38 is fixedly connected to the foremost end of the fifth gear shaft 37, a rotary rod 39 is fixedly connected to the fifth gear shaft 37 between the rotary table 38 and the fifth gear 36, a sliding rod 40 is fixedly connected to one end of the rotary rod 39, the sliding rod 40 can slide in a grooved wheel 54, the grooved wheel 54 is fixedly connected to a grooved wheel shaft 41, the grooved wheel shaft 41 is rotatably connected to the body 11, a sixth gear 53 is fixedly connected to the grooved wheel shaft 41 behind the grooved wheel 54, the right side of the sixth gear 53 is meshed with a seventh gear 52, the seventh gear 52 is fixedly connected to a seventh gear shaft 51, the seventh gear shaft 51 is rotatably connected to the machine body 11, the right side of the seventh gear 52 is meshed with an eighth gear 48, the eighth gear 48 is fixedly connected to an eighth gear shaft 49, the eighth gear shaft 49 is rotatably connected to the machine body 11, a first incomplete gear 50 is fixedly connected to the eighth gear shaft 49 in front of the eighth gear 48, a ninth gear 42 is meshed below the eighth gear 48, the ninth gear 42 is fixedly connected to a ninth gear shaft 43, the ninth gear shaft 43 is rotatably connected to the machine body 11, a second incomplete gear 44 is fixedly connected to the ninth gear shaft 43 in front of the ninth gear 42, and both right sides of the first incomplete gear 50 and the second incomplete gear 44 can be meshed with a tenth gear 45, tenth gear 45 fixed connection is on tenth gear shaft 46, tenth gear shaft 46 rotates to be connected on the fuselage 11, tenth gear 45 right side and the meshing of filling gun rack 47, filling gun rack 47 fixed connection sets up the filling gun 26 left end.

Advantageously, the filling device 103 includes the filling gun base 58, a filling gun valve plate 57 is slidably disposed in the filling gun base 58 from left to right at the bottom end of the filling cavity 93, a valve port 65 is disposed on the filling gun valve plate 57, an eleventh gear 63 is engaged below the right end of the filling gun valve plate 57, the eleventh gear 63 is fixedly connected to an eleventh gear shaft 61, the eleventh gear shaft 61 is rotatably connected to the filling gun base 58, a twelfth gear 62 is fixedly connected to the eleventh gear shaft 61 in front of the eleventh gear 63, the right side of the twelfth gear 62 is engaged with a rack disposed on the left side of a spring rack push rod 60, the spring rack push rod 60 is slidably disposed in the filling gun base 58 from top to bottom and penetrates through the filling gun base 58 from top to bottom, the top end of the spring rack push rod 60 is elastically connected to the filling gun base 58 through a rack push rod spring 64, a filling gun port 59 is fixedly arranged at the bottom end of the filling gun valve plate 57 in the filling gun seat 58.

Beneficially, the pressure regulating device 104 includes the magnet 76, a magnet motor 73 is fixedly connected to the top end of the liquid oxygen storage tank 13 below the magnet 76, an electromagnet 74 is fixedly connected to the top end of the magnet motor 73, a pressure sensor 69 is fixedly connected to the left side of the liquid oxygen storage tank 13 in the storage cavity 92, a pressure gauge seat 70 is connected to the left end of the pressure sensor 69, the pressure gauge seat 70 penetrates through the liquid oxygen storage tank 13, a pressure gauge 68 is fixedly connected to the top end of the left end of the pressure gauge seat 70, a pointer shaft 77 is rotatably connected to the pressure gauge 68, a pressure pointer 66 is fixedly connected to the pointer shaft 77, and a pressure trigger switch 79 is fixedly connected to the top end of the right end of the pressure gauge 68.

Sequence of mechanical actions of the whole device:

when the device of the invention works, the motor 22 is started, the motor shaft 12 and the first bevel gear 21 on the motor shaft 12 rotate, the first bevel gear 21 drives the second bevel gear 19 to rotate, the second bevel gear 19 drives the first gear shaft 20 and the first gear 18 on the first gear shaft 20 to rotate, the first gear 18 drives the second gear 15 to rotate, the second gear 15 drives the second gear shaft 16 and the driving roller 17 on the second gear shaft 16 to rotate, the driving roller 17 drives the driven roller 24 to rotate through belt transmission, the conveyor belt 23 drives the liquid oxygen storage tank 13 to slowly transmit right, the top end of the motor shaft 12 drives the worm gear 32 to rotate, the worm gear 32 drives the worm gear shaft 33 and the third gear 31 on the worm gear shaft 33 to rotate, the third gear 31 drives the fourth gear 34 to rotate, the fourth gear 34 drives the fifth gear 36 to rotate, the fifth gear 36 drives the fifth gear shaft 37 and the rotary rod 39 on the fifth gear shaft 37 to rotate, the sliding rod 40 on the rotary rod 39 slides in the grooved wheel 54 to drive the grooved wheel 54 to periodically rotate, the grooved wheel 54 drives the grooved wheel shaft 41 and the sixth gear 53 on the grooved wheel shaft 41 to periodically rotate, the sixth gear 53 drives the seventh gear 52 to periodically rotate, the seventh gear 52 drives the eighth gear 48 to periodically rotate, the eighth gear 48 drives the eighth gear shaft 49 and the first incomplete gear 50 on the eighth gear shaft 49 to periodically rotate, the ninth gear 42 is driven below the eighth gear 48 to periodically rotate, the ninth gear 42 drives the ninth gear shaft 43 and the second incomplete gear 44 on the ninth gear shaft 43 to periodically rotate, the first incomplete gear 50 and the second incomplete gear 44 together drive the tenth gear 45 to periodically reciprocate to rotate, the tenth gear 45 drives the perfusion gun rack 47 to periodically reciprocate up and down, the perfusion gun rack 47 drives the perfusion gun 26 to periodically reciprocate up and down, when the filling gun 26 slides downwards, the filling gun seat 58 and the filling gun mouth 59 in the filling gun seat 58 slide downwards into the filling nozzle 72, the filling nozzle 72 is pressed downwards by the filling gun seat 58 to enable the filling nozzle 72 to slide downwards to be pressed by the filling nozzle spring 75, the oxygen inlet cavity 95 is communicated with the storage cavity 92 through the oxygen inlet hole 71, the spring rack ejector rod 60 on the filling gun seat 58 abuts against the upper surface of the filling nozzle 72, the spring rack ejector rod 60 is ejected upwards to press the rack ejector rod spring 64, the spring rack ejector rod 60 drives the twelfth gear 62 to rotate anticlockwise, the twelfth gear 62 drives the eleventh gear shaft 61 and the eleventh gear 63 on the eleventh gear shaft 61 to rotate anticlockwise, the eleventh gear 63 rotates anticlockwise to drive the filling gun valve plate 57 to slide leftwards until the valve port 65 connects the filling cavity 93 with the storage cavity 92 below, hydraulic pressure in the liquid oxygen cavity 91 enters the storage cavity 92 through the filling cavity 93 under the action of pressure, thereby realizing automatic filling of liquid oxygen, when the filling gun 26 slides upwards, the device is reset, the filling cavity 93 is sealed by the valve plate 57 of the filling gun, the storage cavity 92 is sealed by the sealing plate 67, the pressure in the storage cavity 92 is transmitted into the pressure gauge stand 70 through the pressure sensor 69, the pressure gauge 68 drives the pointer shaft 77 and the pressure pointer 66 on the pointer shaft 77 to rotate to present a numerical value, when the numerical value exceeds a limit value, the pressure pointer 66 rotates to the rightmost side to trigger the pressure trigger switch 79 to start, the pressure trigger switch 79 starts the magnet motor 73, the magnet motor 73 drives the electromagnet 74 to attract the magnet 76 to drive the filling nozzle 72 to slide downwards to press the filling nozzle spring 75, the oxygen inlet hole 71 is communicated with the storage cavity 92, the pressure in the storage cavity 92 is released through the oxygen inlet hole 71, when the pressure in the liquid oxygen cavity 91 is too low, the pressurizer 28 is started, and the pressurizer 28 pressurizes the inside of the liquid oxygen cavity 91 through the pressurizing.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.