Multifunctional liquid nitrogen collector

Abstract

The utility model relates to the technical field of liquid nitrogen collection, in particular to a multifunctional liquid nitrogen collector which comprises a base used for installing the collector, a base table fixedly arranged at the top of the base, a storage tank fixedly arranged at the top of the base table, a controller, a liquid nitrogen tank, an extrusion mechanism and a liquid outlet mechanism. The liquid outlet mechanism is arranged on the outer wall of the storage tank and comprises a telescopic pipe, a driving assembly and a flow dividing assembly, a conveying opening is formed in the outer wall of the storage tank, the telescopic pipe is rotationally arranged at the top end of the conveying opening, the driving assembly is arranged on the outer wall of the storage tank, the flow dividing assembly is arranged at the bottom of the telescopic pipe, and the driving assembly is electrically connected with the controller. According to the multifunctional liquid nitrogen collector, liquid nitrogen can be subpackaged from the storage tank to the liquid nitrogen tank in a pedal mode in cooperation with a hydraulic system, time and labor are saved, collection of women is facilitated, and the risk of frostbite is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid nitrogen collection, in particular to a multifunctional liquid nitrogen collector. Background Art

[0002] Liquid nitrogen refers to the liquid obtained by inert, colorless, odorless, non-corrosive, and non-flammable nitrogen gas under extremely low temperature. Liquid nitrogen is an inert, colorless, odorless, low-viscosity, non-corrosive, non-flammable, transparent liquid at extremely low temperature. When vaporized, it absorbs a large amount of heat and causes frostbite. Nitrogen makes up most of the atmosphere (78.03% by volume and 75.5% by weight). At normal pressure, the boiling point of nitrogen is -196.56 ℃, and 1 cubic meter of liquid nitrogen can expand to 696 cubic meters of pure gaseous nitrogen (21 ℃). If pressurized, liquid nitrogen can be obtained at a higher temperature. If the human body comes into contact with liquid nitrogen without protective measures, the skin may be severely frostbitten. If the nitrogen produced by vaporization at normal pressure is excessive, the oxygen partial pressure in the air may drop, causing hypoxia and suffocation.

[0003] Existing liquid nitrogen is generally stored inside a tank, and when in use, it needs to be poured by manually grasping the tank.

[0004] The existing acquisition technology has the following shortcomings:

[0005] 1. Since the tank is made of metal, it is heavy and women have little strength, so it is inconvenient and time-consuming to pour it, which reduces the collection efficiency and poses a risk of frostbite.

[0006] 2. During collection, generally the liquid nitrogen in the storage tank can only be collected into another smaller liquid nitrogen tank at a time, and it is impossible to achieve synchronous collection of two liquid nitrogen tanks.

[0007] 3. During the pouring process, liquid nitrogen is easy to volatilize, causing waste. At the same time, it is impossible to know the remaining liquid nitrogen content in the storage tank and the liquid nitrogen content in the liquid nitrogen tank in real time, and it is impossible to accurately control the collection amount. Utility Model Content

[0008] The utility model aims to provide a multifunctional liquid nitrogen collector.

[0009] To achieve this purpose, the utility model adopts the following technical solutions:

[0010] Provided is a liquid nitrogen multifunctional collector, comprising a base for mounting the collector, a base station being fixedly provided on the top of the base, and a storage tank being fixedly provided on the top of the base station;

[0011] It also includes a controller, a liquid nitrogen tank, an extrusion mechanism and a liquid discharge mechanism;

[0012] The liquid nitrogen tank is arranged beside the base storage tank, and the liquid nitrogen tank is located on the top of the base platform, and four pulleys are arranged at the bottom of the liquid nitrogen tank;

[0013] The squeezing mechanism is arranged on the top of the base, and the squeezing mechanism includes an oil tank, a pedal assembly and a pushing assembly. The oil tank is fixed on the top of the base through a support platform, the pedal assembly is inserted on the oil tank, and the pushing assembly is arranged on the oil tank;

[0014] The liquid discharge mechanism is arranged on the outer wall of the storage tank, and the liquid discharge mechanism includes a telescopic tube, a driving assembly and a diversion assembly. A delivery port is arranged on the outer wall of the storage tank, the telescopic tube is rotatably arranged at the top of the delivery port, the driving assembly is arranged on the outer wall of the storage tank, the diversion assembly is arranged at the bottom of the telescopic tube, and the driving assembly is electrically connected to the controller.

[0015] Preferably, the foot pedal assembly includes a pedal, a return spring, a rotating rod and an extrusion rod, two limit plates are fixedly provided on the top of the base, a U-shaped limit rod is fixedly provided between the two limit plates, the extrusion rod is slidably provided on the U-shaped limit rod through a sliding bearing, one end of the extrusion rod is plugged into the oil tank, the rotating rod is hingedly provided between the tops of the two limit plates, the rotating rod is in contact with one end of the extrusion rod away from the oil tank, the pedal is fixedly provided at the bottom end of the rotating rod, the return spring is fixedly provided between the bottom end of the rotating rod and the outer wall of the support platform, and a through hole is provided at one end of the oil tank close to the rotating rod.

[0016] Preferably, the pushing assembly includes hydraulic oil, a delivery pipe and a push plate, the hydraulic oil is arranged inside the oil tank, the delivery pipe is fixedly arranged between the oil tank and the storage tank, and the push plate is slidably arranged inside the storage tank.

[0017] Preferably, the driving assembly includes a stepper motor, a first gear and a second gear. A mounting block is fixedly provided on the outer wall of the storage tank. The bottom of the telescopic tube is rotatably connected to the mounting block through a bearing. A support plate is fixedly provided on the outer wall of one side of the mounting block. The stepper motor is fixedly provided on the support plate. The first gear is fixedly provided on the output end thereof. The second gear is fixedly provided on the outer wall of the lower half of the telescopic tube. The first gear and the second gear are meshingly connected. The stepper motor is electrically connected to the controller.

[0018] Preferably, a guide rod is fixedly provided on the outer wall of the telescopic tube, an arc-shaped slide groove is fixedly provided on the outer wall of one side of the storage tank, and the guide rod is plugged into the arc-shaped slide groove.

[0019] Preferably, the shunt assembly includes a shunt pipe, a thick branch pipe and a thin branch pipe. The shunt pipe is fixedly arranged at one end of the telescopic pipe away from the delivery port, and the thick branch pipe and the thin branch pipe are respectively fixedly arranged at both ends of the shunt pipe.

[0020] Preferably, displays are fixedly provided on the outer walls of the storage tank and the liquid nitrogen tank, and liquid level sensors are fixedly provided on the inner walls of the storage tank and the liquid nitrogen tank, each display is electrically connected to a liquid level sensor, and each display and each liquid level sensor are electrically connected to the controller.

[0021] Preferably, the telescopic tube is a hollow pipe structure.

[0022] Beneficial effects of the utility model:

[0023] 1. The utility model designs an extrusion mechanism, namely an oil tank, a pedal assembly and a pushing assembly, which can realize the packaging of liquid nitrogen from a storage tank to a liquid nitrogen tank by pedaling in cooperation with a hydraulic system, saving time and effort, and making it convenient for women to collect. At the same time, there is no need to manually grasp the collection, thus avoiding the risk of frostbite. At the same time, it does not rely on any electric drive, has low power consumption, and reduces the collection cost.

[0024] 2. The utility model designs a shunt assembly, namely a shunt pipe, a thick branch pipe and a thin branch pipe. The sealing plugs of the top openings of the two liquid nitrogen tanks are removed, and the bottom ends of the thick telescopic tube 8 or the thin branch pipes can be inserted into the top openings of the two liquid nitrogen tanks to achieve synchronous material extraction from the two liquid nitrogen tanks, thereby improving the collection efficiency of liquid nitrogen.

[0025] 3. The utility model designs a telescopic tube and a driving assembly. The telescopic tube can adjust its overall length, so as to be conveniently connected to liquid nitrogen tanks at different heights for collecting liquid nitrogen. The driving assembly can drive the telescopic tube to rotate freely to satisfy the rotation of the telescopic tube to different angles. No matter how the liquid nitrogen tank on the top of the base is placed, liquid nitrogen can be easily collected, thereby improving the practicality and flexibility of the collector.

[0026] 4. The utility model is designed with two displays and two liquid level sensors. The two liquid level sensors are used to monitor the remaining liquid nitrogen content in the storage tank and the collection amount of the liquid nitrogen tank in real time, respectively. The content values ​​are displayed in real time through the two displays. When the liquid nitrogen content in the storage tank is low, it is convenient to know and fill it in time. When the collection amount of the liquid nitrogen tank meets the collection demand each time, a signal can be sent to the controller, thereby starting the buzzer alarm through the controller to prompt the collection personnel to release the pedal, so that the amount of liquid nitrogen collected each time is consistent, thereby achieving the effect of quantitative collection.

[0027] 5. The utility model designs the telescopic tube into a combined structure of an inner tube, an outer surface and a plurality of reinforcing ribs, which is also a double-layer hollow structure. The inner tube is used to transport liquid nitrogen, and the outer tube fully seals and protects the inner tube to prevent the liquid nitrogen from volatilizing and causing waste. At the same time, the outer wall of the inner tube and the inner wall of the outer tube are connected by a plurality of reinforcing ribs to achieve a fixed connection between the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings in the embodiment of the present invention are briefly introduced below.

[0029] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0030] Figure 2 Figure 1 A in the enlarged view;

[0031] Figure 3 It is a planar cross-sectional view of the telescopic tube of the utility model;

[0032] Figure 4 It is a cross-sectional view of the oil tank and storage tank of the utility model;

[0033] Figure 5 This is an enlarged view of point B in 4;

[0034] Figure 6 It is a partial plan cross-sectional view of the telescopic tube of the utility model;

[0035] In the figure: base 1, storage tank 2, liquid nitrogen tank 3, pulley 4, oil tank 5, pedal assembly 6, pushing assembly 7, telescopic tube 8, drive assembly 9, diverter assembly 10, pedal 11, return spring 12, rotating rod 13, extrusion rod 14, through hole 15, hydraulic oil 16, delivery pipe 17, push plate 18, stepper motor 19, first gear 20, second gear 21, guide rod 22, arc chute 23, diverter pipe 24, thick branch pipe 25, thin branch pipe 26, display 27, inner pipe 28, outer pipe 29, reinforcing rib 30. DETAILED DESCRIPTION

[0036] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0037] Among them, the drawings are only used for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product.

[0038] Reference Figures 1 to 6 As shown, a multifunctional liquid nitrogen collector comprises a base for mounting the collector, a base 1 is fixedly provided on the top of the base, and a storage tank 2 is fixedly provided on the top of the base 1;

[0039] It also includes a controller, a liquid nitrogen tank 3, an extrusion mechanism and a liquid discharge mechanism;

[0040] The liquid nitrogen tank 3 is arranged beside the base storage tank 2, and the liquid nitrogen tank 3 is located on the top of the base 1. Four pulleys 4 are arranged at the bottom of the liquid nitrogen tank 3, so that the liquid nitrogen tank 3 can slide back and forth, which can save manpower to move. In the later stage, it can also be set to a remote control with a fixed route, similar to the principle of an AGV car;

[0041] The squeezing mechanism is arranged on the top of the base, and the squeezing mechanism includes an oil tank 5, a pedal assembly 6 and a pushing assembly 7. The oil tank 5 is fixed on the top of the base through a supporting plate, the pedal assembly 6 is inserted on the oil tank 5, and the pushing assembly 7 is arranged on the oil tank 5;

[0042] The liquid discharge mechanism is arranged on the outer wall of the storage tank 2, and the liquid discharge mechanism includes a telescopic tube 8, a driving component 9 and a diversion component 10. A delivery port is arranged on the outer wall of the storage tank 2, and the telescopic tube 8 is rotatably arranged at the top of the delivery port. The driving component 9 is arranged on the outer wall of the storage tank 2, and the diversion component 10 is arranged at the bottom of the telescopic tube 8. The driving component 9 is electrically connected to the controller, and the telescopic tube 8 can adjust its overall length, so as to facilitate the connection with liquid nitrogen tanks of different heights to collect liquid nitrogen, thereby improving the practicality and flexibility of the collector.

[0043] Reference Figures 1 to 6 As shown, the pedal assembly 6 includes a pedal 11, a return spring 12, a rotating rod 13 and an extrusion rod 14. Two limit plates are fixedly provided on the top of the base, a U-shaped limit rod is fixedly provided between the two limit plates, the extrusion rod 14 is slidably provided on the U-shaped limit rod through a sliding bearing, one end of the extrusion rod 14 is plugged into the oil tank 5, the rotating rod 13 is hingedly provided between the tops of the two limit plates, the rotating rod 13 is in contact with one end of the extrusion rod 14 away from the oil tank 5, the pedal 11 is fixedly provided at the bottom end of the rotating rod 13, the return spring 12 is fixedly provided between the bottom end of the rotating rod 13 and the outer wall of the support platform, and the oil tank 5 is close to the rotating rod 13. A through hole 15 is provided at the end. When collecting liquid nitrogen, the collector puts his foot on the pedal 11 and steps down. Since the middle part of the rotating rod 13 contacts one end of the squeezing rod 14, the top of the rotating rod 13 is hinged with the two limit plates, the outer wall of the bottom end of the rotating rod 13 and the outer wall of the supporting platform are fixedly connected, and the squeezing rod 14 is plugged into the oil tank 5, so that the reset spring 12 is forced to shrink, and then the squeezing rod 14 slides inside the oil tank 5 toward the end away from the limit plate. The through hole 15 releases pressure every time the squeezing rod 14 is reset, so as to keep the pressure inside the oil tank 5 balanced and prevent the oil tank 5 from being damaged due to excessive pressure for a long time.

[0044] Reference Figures 1 to 6As shown, the pushing assembly 7 includes hydraulic oil 16, a delivery pipe 17 and a push plate 18. The hydraulic oil 16 is arranged inside the oil tank 5, the delivery pipe 17 is fixedly arranged between the oil tank 5 and the storage tank 2, and the push plate 18 is slidably arranged inside the storage tank 2. The left side of the push plate 18 is filled with hydraulic oil 16, and the right side of the push plate 18 is filled with liquid nitrogen. When the extrusion rod 14 slides inside the oil tank 5 toward the end away from the limit plate, the hydraulic oil 16 inside the oil tank 5 enters the gap between the inner wall of the storage tank 2 and the left side of the pressing plate through the delivery pipe 17. The pressure acting on the extrusion rod 14 acts on the push plate 18 with a larger area through the hydraulic oil 16 and is amplified, and then the liquid nitrogen is pushed to the inside of the telescopic tube 8 through the push plate 18, and then flows out from the thick branch pipe 25 and the thin branch pipe 26 on the shunt pipe 24 to achieve collection. Compared with the prior art, it is more labor-saving to use the foot pedal, and at the same time, with the hydraulic drive, the liquid nitrogen collection is more convenient and quick, which is especially suitable for women with less strength, and at the same time reduces the risk of frostbite caused by liquid nitrogen dripping.

[0045] Reference Figures 1 to 6 As shown, the driving assembly 9 includes a stepper motor 19, a first gear 20 and a second gear 21. A mounting block is fixedly provided on the outer wall of the storage tank 2. The bottom of the telescopic tube 8 is rotatably connected to the mounting block through a bearing. A support plate is fixedly provided on the outer wall of one side of the mounting block. The stepper motor 19 is fixedly provided on the support plate. The first gear 20 is fixedly provided on its output end. The second gear 21 is fixedly provided on the outer wall of the lower half of the telescopic tube 8. The first gear 20 and the second gear 21 are meshingly connected. The stepper motor 19 is electrically connected to the controller. When it is necessary to adjust the angle of the telescopic tube 8, the stepper motor 19 is started by the controller, so that its output end drives the first gear 20 to rotate. Since the second gear 21 is fixedly connected to the telescopic tube 8, it drives the telescopic tube 8 to rotate, so as to satisfy the rotation of the telescopic tube 8 to different angles. No matter how the liquid nitrogen tank 3 on the top of the base 1 is placed, liquid nitrogen can be conveniently collected.

[0046] Reference Figures 1 to 6 As shown, a guide rod 22 is fixedly provided on the outer wall of the telescopic tube 8, and an arc-shaped slide groove 23 is fixedly provided on the outer wall of one side of the storage tank 2. The guide rod 22 is plugged into the arc-shaped slide groove 23. During the rotation of the telescopic tube 8, since the guide rod 22 is fixedly connected to its outer wall, the guide rod 22 is plugged into the arc-shaped slide groove 23, so that the guide rod 22 slides in an arc shape inside the arc-shaped slide groove 23, thereby improving the stability of the telescopic tube 8 during rotation.

[0047] Reference Figures 1 to 6As shown, the shunt assembly 10 includes a shunt pipe 24, a thick branch pipe 25 and a thin branch pipe 26. The shunt pipe 24 is fixedly arranged at one end of the telescopic pipe 8 away from the delivery port, and the thick branch pipe 25 and the thin branch pipe 26 are respectively fixedly arranged at both ends of the shunt pipe 24. The sealing plugs of the top openings of the two liquid nitrogen tanks 3 are removed, and the bottom ends of the thick telescopic pipe 8 or the thin branch pipe 26 can be inserted into the top openings of the two liquid nitrogen tanks 3 to achieve synchronous material extraction of the two liquid nitrogen tanks 3 and improve the liquid nitrogen collection efficiency.

[0048] Reference Figures 1 to 6 As shown, a display 27 is fixedly provided on the outer wall of the storage tank 2 and the liquid nitrogen tank 3, a liquid level sensor is fixedly provided on the inner wall of the storage tank 2 and the liquid nitrogen tank 3, each display 27 is electrically connected to a liquid level sensor, each display 27 and each liquid level sensor are electrically connected to the controller, a buzzer alarm is fixedly provided on the outer wall of the tank body, and the two liquid level sensors are respectively used to monitor the remaining liquid nitrogen content of the storage tank 2 and the collection amount of the liquid nitrogen tank 3 in real time, and the content values ​​are displayed in real time through the two displays 27. When the liquid nitrogen content in the storage tank 2 is low, it is convenient to know and fill it in time. When the collection amount of the liquid nitrogen tank 3 meets the collection demand each time, a signal can be sent to the controller, thereby starting the buzzer alarm through the controller to prompt the collection personnel to release the pedal 11, so that the amount of liquid nitrogen collected each time is consistent, thereby achieving the effect of quantitative collection.

[0049] Reference Figures 1 to 6 As shown, the telescopic tube 8 is a hollow pipe structure and a double-layer structure. The telescopic tube 8 includes an inner tube 28 and an outer tube 29. The inner tube 28 is used to transport liquid nitrogen, and the outer tube 29 fully seals and protects the inner tube 28 to prevent the liquid nitrogen from volatilizing and causing waste. At the same time, the outer wall of the inner tube 28 and the inner wall of the outer tube 29 are connected by a plurality of reinforcing ribs 30 to achieve a fixed connection between the two.

Claims

1. A liquid nitrogen multifunctional collector, comprising a base for mounting the collector, a base (1) being fixedly provided on the top of the base, a storage tank (2) being fixedly provided on the top of the base (1), characterized in that: It also includes a controller, a liquid nitrogen tank (3), an extrusion mechanism and a liquid discharge mechanism; The liquid nitrogen tank (3) is arranged beside the base storage tank (2), and the liquid nitrogen tank (3) is located on the top of the base platform (1), and four pulleys (4) are arranged at the bottom of the liquid nitrogen tank (3); The squeezing mechanism is arranged on the top of the base, and comprises an oil tank (5), a pedal assembly (6) and a pushing assembly (7); the oil tank (5) is fixed on the top of the base via a supporting plate, the pedal assembly (6) is inserted on the oil tank (5), and the pushing assembly (7) is arranged on the oil tank (5); The liquid discharge mechanism is arranged on the outer wall of the storage tank (2), and comprises a telescopic tube (8), a driving assembly (9) and a flow diversion assembly (10). A delivery port is arranged on the outer wall of the storage tank (2), the telescopic tube (8) is rotatably arranged at the top end of the delivery port, the driving assembly (9) is arranged on the outer wall of the storage tank (2), the flow diversion assembly (10) is arranged at the bottom of the telescopic tube (8), and the driving assembly (9) is electrically connected to the controller.

2. The multifunctional liquid nitrogen collector according to claim 1, characterized in that: The pedal assembly (6) comprises a pedal (11), a return spring (12), a rotating rod (13) and an extrusion rod (14); two limit plates are fixedly provided on the top of the base; a U-shaped limit rod is fixedly provided between the two limit plates; the extrusion rod (14) is slidably provided on the U-shaped limit rod via a sliding bearing; one end of the extrusion rod (14) is plugged into the oil tank (5); the rotating rod (13) is hingedly provided between the tops of the two limit plates; the rotating rod (13) abuts against one end of the extrusion rod (14) away from the oil tank (5); the pedal (11) is fixedly provided at the bottom end of the rotating rod (13); the return spring (12) is fixedly provided between the bottom end of the rotating rod (13) and the outer wall of the support platform; and a through hole (15) is provided at one end of the oil tank (5) close to the rotating rod (13).

3. The multifunctional liquid nitrogen collector according to claim 1, characterized in that: The pushing assembly (7) comprises hydraulic oil (16), a delivery pipe (17) and a push plate (18); the hydraulic oil (16) is arranged inside the oil tank (5); the delivery pipe (17) is fixedly arranged between the oil tank (5) and the storage tank (2); and the push plate (18) is slidably arranged inside the storage tank (2).

4. The multifunctional liquid nitrogen collector according to claim 1, characterized in that: The driving assembly (9) comprises a stepping motor (19), a first gear (20) and a second gear (21); a mounting block is fixedly provided on the outer wall of the storage tank (2); the bottom of the telescopic tube (8) is rotatably connected to the mounting block via a bearing; a support plate is fixedly provided on the outer wall of one side of the mounting block; the stepping motor (19) is fixedly provided on the support plate; the first gear (20) is fixedly provided on the output end thereof; the second gear (21) is fixedly provided on the outer wall of the lower half of the telescopic tube (8); the first gear (20) and the second gear (21) are meshingly connected; and the stepping motor (19) is electrically connected to a controller.

5. The multifunctional liquid nitrogen collector according to claim 1, characterized in that: A guide rod (22) is fixedly provided on the outer wall of the telescopic tube (8), and an arc-shaped slide groove (23) is fixedly provided on the outer wall of one side of the storage tank (2), and the guide rod (22) is plugged into the arc-shaped slide groove (23).

6. The multifunctional liquid nitrogen collector according to claim 1, characterized in that: The flow dividing assembly (10) comprises a flow dividing pipe (24), a thick branch pipe (25) and a thin branch pipe (26); the flow dividing pipe (24) is fixedly arranged at one end of the telescopic pipe (8) away from the delivery port, and the thick branch pipe (25) and the thin branch pipe (26) are respectively fixedly arranged at both ends of the flow dividing pipe (24).

7. The multifunctional liquid nitrogen collector according to claim 1, characterized in that: Displays (27) are fixedly provided on the outer walls of the storage tank (2) and the liquid nitrogen tank (3), and liquid level sensors are fixedly provided on the inner walls of the storage tank (2) and the liquid nitrogen tank (3), each display (27) is electrically connected to a liquid level sensor, and each display (27) and each liquid level sensor are electrically connected to a controller.

8. The multifunctional liquid nitrogen collector according to claim 1, characterized in that: The telescopic tube (8) is a hollow pipe structure.

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