CN113090938A - Medical liquid nitrogen storage device - Google Patents

Medical liquid nitrogen storage device Download PDF

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Publication number
CN113090938A
CN113090938A CN202110320354.4A CN202110320354A CN113090938A CN 113090938 A CN113090938 A CN 113090938A CN 202110320354 A CN202110320354 A CN 202110320354A CN 113090938 A CN113090938 A CN 113090938A
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CN
China
Prior art keywords
liquid nitrogen
measuring
arm
tank
sliding
Prior art date
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Granted
Application number
CN202110320354.4A
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Chinese (zh)
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CN113090938B (en
Inventor
肖瑶
李嘉荣
郭嘉
赵杰
周吉祥
刘国栋
欧阳锡武
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Xiangya Hospital of Central South University
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Xiangya Hospital of Central South University
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Priority to CN202110320354.4A priority Critical patent/CN113090938B/en
Publication of CN113090938A publication Critical patent/CN113090938A/en
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Publication of CN113090938B publication Critical patent/CN113090938B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/021—Special adaptations of indicating, measuring, or monitoring equipment having the height as the parameter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/001—Thermal insulation specially adapted for cryogenic vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C3/00—Vessels not under pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/014—Nitrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0408—Level of content in the vessel
    • F17C2250/0413—Level of content in the vessel with floats

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The invention discloses a medical liquid nitrogen storage device, which comprises a liquid nitrogen tank, a supporting assembly, a storage assembly, a fixing assembly and a driving piece, wherein the supporting assembly is arranged on the liquid nitrogen tank; the support assembly comprises a support plate and a support platform; the supporting plate is arranged above the supporting platform; the support table is used for contacting with the ground; the receiving assembly comprises a receiving barrel; the storage barrel is fixed at the central position of the upper surface of the supporting plate; the side wall of the containing barrel is provided with a plurality of vertical grooves; the liquid nitrogen tank is arranged in the containing barrel; the medical liquid nitrogen storage device provided by the invention can display the liquid level height of liquid nitrogen in the liquid nitrogen tank in real time by arranging the measuring assembly; specifically, can measure the distance between the interior roof of measuring block and inner chamber through displacement sensor in real time to convert it into the distance between the inner bottom wall of floater and inner bag, because of the floater floats in the liquid level of liquid nitrogen, calculate the liquid level height of liquid nitrogen through the singlechip, and show the liquid level height of liquid nitrogen in the display screen.

Description

Medical liquid nitrogen storage device
Technical Field
The invention relates to the technical field of transformer production equipment, in particular to a medical liquid nitrogen storage device.
Background
The liquid nitrogen tank can be generally divided into a liquid nitrogen storage tank and a liquid nitrogen transport tank, wherein the storage tank is mainly used for standing storage of indoor liquid nitrogen and is not suitable for long-distance transport in a working state, the liquid nitrogen transport tank is specially designed for shock prevention in order to meet transport conditions, can be used for standing storage and transport in a liquid nitrogen filling state, but also can avoid severe collision and shock, and is mainly used for active preservation of animal semen, active preservation of biological samples, cryogenic treatment of metal materials, cryogenic assembly of precision parts, refrigeration and freezing of medical and health industries and medical operation refrigerating lamps.
Because the liquid nitrogen container is when storing liquid nitrogen, inside needs to be sealed, so the volume of remaining liquid nitrogen in the liquid nitrogen container is difficult to judge from the outside, and how much direct relation of remaining liquid nitrogen in the liquid nitrogen container is to the quality of the biological sample of saving in the liquid nitrogen container, when the liquid nitrogen volume appears in the liquid nitrogen container and reduces, need in time supply liquid nitrogen to guarantee the activity of the biological sample of saving in the liquid nitrogen container.
In the prior art, the method for judging the residual liquid nitrogen amount in the liquid nitrogen tank is that the liquid nitrogen tank is manually held to shake so as to roughly estimate the liquid nitrogen amount in the liquid nitrogen tank, and the method is low in accuracy of judging the liquid nitrogen amount, dangerous and easy to cause leakage of liquid nitrogen and damage to bodies of operators when the operation is careless.
Disclosure of Invention
The invention mainly aims to provide a medical liquid nitrogen storage device, and aims to solve the problems that the existing mode for judging the amount of residual liquid nitrogen in a liquid nitrogen tank is low in accuracy and dangerous due to the fact that the liquid nitrogen tank is manually shaken.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a medical liquid nitrogen storage device comprises a liquid nitrogen tank, a supporting assembly, a containing assembly and a measuring assembly; the support assembly comprises a support plate and a support platform; the supporting plate is arranged above the supporting platform; the support table is used for contacting with the ground;
the receiving assembly comprises a receiving barrel; the storage barrel is fixed at the central position of the upper surface of the supporting plate; the side wall of the containing barrel is provided with a plurality of vertical grooves; the liquid nitrogen tank is arranged in the containing barrel;
the liquid nitrogen tank comprises a tank body and a tank cover; an inner container is formed inside the tank body; the inner container is used for storing liquid nitrogen; the inner top is formed with an opening; the can lid can be inserted into the opening to seal the can body;
the measuring component comprises a floating ball, a measuring rod, a measuring cylinder, a displacement sensor and a measuring block; an inner cavity is formed inside the tank cover; the measuring cylinder is arranged in the inner cavity; the bottom end of the measuring cylinder is open; the measuring cylinder penetrates through the inner cavity and is communicated with the inner container; the measuring cylinder and the vertical central axis of the tank body are collinear; the measuring rod is matched with and is embedded into the measuring cylinder in a sliding manner; the floating ball is connected with one end of the measuring rod, which extends out of the measuring cylinder; the floating ball can float on the liquid level of the liquid nitrogen in the inner container;
the side wall of the measuring cylinder is provided with an elongated slot extending along the length direction of the measuring cylinder; the measuring block is fixed on the measuring rod and movably penetrates through the long groove; the displacement sensor is arranged between one side of the measuring block extending out of the measuring cylinder and the inner cavity; the displacement sensor is used for detecting the distance between the measuring block and the inner top wall of the inner cavity so as to measure the liquid level position of liquid nitrogen in the inner container.
Preferably, the device further comprises a fixing component and a driving component;
the number of the fixing components is multiple; the fixing assembly comprises a fixing arm and a transmission part; the fixed arm is vertically arranged and movably connected to the supporting plate; the driving piece is used for driving the fixing arm to horizontally move through the transmission part; the fixing arm can move to stretch into the vertical groove and abut against the outer wall of the liquid nitrogen tank to fix the liquid nitrogen tank.
Preferably, the fixed assembly further comprises a moving arm and a sliding rail; the supporting plate is provided with a long sliding hole which penetrates through the supporting plate up and down; an inner groove is formed in one surface, connected with the supporting plate, of the supporting table; the long slide hole is communicated with the inner groove;
the slide rail is close to the long slide hole and horizontally arranged on the upper surface of the support plate; the extending direction of the slide rail is parallel to the extending direction of the long slide hole; the moving arm is provided with a sliding groove; the sliding groove is matched and sleeved on the sliding rail, so that the moving arm can slide along the sliding rail; the fixed arm is connected to one end, close to the containing barrel, of the moving arm; the transmission component is partially arranged in the inner groove.
Preferably, the number of the slide rails is 2; the 2 slide rails are respectively arranged on two sides of the long slide hole and are symmetrical with the long slide hole; the number of the sliding grooves is 2, and the 2 sliding grooves are all arranged on the bottom wall of the moving arm and are symmetrical with the center line of the bottom wall of the moving arm in the length direction; the fixed arm is vertically connected to the upper part of one end of the moving arm close to the containing barrel.
Preferably, the number of the fixing assemblies is 4; the 4 long sliding holes are uniformly distributed at equal intervals in an annular mode on the vertical axis of the containing barrel; wherein 2 of the long sliding holes are positioned on the same straight line, the other 2 of the long sliding holes are positioned on the other straight line, and the adjacent 2 of the long sliding holes are vertical to each other;
the number of the vertical grooves is 4, and the vertical grooves correspond to the fixing assemblies one by one; the 4 vertical grooves are uniformly distributed at equal intervals in an annular mode on the vertical axis of the containing barrel; the fixing arms of the fixing assemblies can extend into the corresponding vertical grooves and are abutted against the outer wall of the liquid nitrogen tank.
Preferably, the transmission part comprises a sliding seat, a connecting rod, a screw nut and a bevel gear; the driving piece is a driving motor; the connecting rod is vertically arranged and movably penetrates through the long sliding hole; the top end of the connecting rod is connected to the bottom of the moving arm; the bottom end of the connecting rod is connected to the sliding seat;
the screw rod is rotatably arranged in the inner groove; the screw rod nut is fixedly embedded in the sliding seat; the screw rod nut is matched and sleeved on the screw rod; the screw rod is horizontally arranged and is parallel to the extending direction of the long sliding hole;
the bevel gear is coaxially connected to one end, close to the containing barrel, of the screw rod; the screw rods of the 4 fixing assemblies are uniformly distributed at equal intervals in a ring shape on the vertical axis of the storage barrel; the adjacent screw rods are vertical to each other, and the opposite screw rods are coaxial; the bevel gears on the adjacent screw rods are meshed with each other; the driving motor is used for driving 1 of the screw rods to rotate.
Preferably, a vertically extending protruding arm is formed on one side of the fixing arm close to the containing barrel; a first buffer layer is arranged on one side, close to the storage barrel, of the protruding arm; the protruding arm can stretch into in the vertical slot, and make first buffer layer with the outer wall butt of liquid nitrogen container.
Preferably, the device further comprises a fastening component; the fastening assembly comprises a pressing plate, a moving rod and a sucker; the supporting plate is provided with a plurality of first through holes; the moving rod vertically penetrates through the first through hole in a sliding mode; the top end of the moving rod is connected with the pressing plate; the bottom end of the moving rod is connected with the sucker; the sucking disc can suck with the ground.
Preferably, the containing barrel further comprises a barrel cover and a barrel body; the vertical groove is formed in the cylinder body; the upper part of the cylinder body is open; the cylinder cover is hinged at the opening of the cylinder body; the cartridge cover can cover the opening.
Preferably, the inner bottom wall of the cylinder body is provided with a second buffer layer capable of contacting with the bottom of the liquid nitrogen tank; a third buffer layer is arranged on the inner wall of the cylinder cover; when the cylinder cover covers the opening, the third buffer layer is in contact with the top of the liquid nitrogen tank.
Compared with the prior art, the invention at least has the following beneficial effects:
the medical liquid nitrogen storage device provided by the invention can display the liquid level height of liquid nitrogen in the liquid nitrogen tank in real time by arranging the measuring assembly; specifically, the distance between the measuring block and the inner top wall of the inner cavity can be measured in real time through the displacement sensor, so that the distance is converted into the distance between the floating ball and the inner bottom wall of the inner container, the floating ball floats on the liquid level of liquid nitrogen, the liquid level height of the liquid nitrogen can be calculated through the single chip microcomputer, the liquid level height of the liquid nitrogen is displayed on the display screen, and people can quickly and conveniently know the residual amount of the liquid nitrogen in the liquid nitrogen tank; compared with the traditional mode that the liquid nitrogen tank is manually held by hand to shake so as to roughly estimate the amount of liquid nitrogen in the liquid nitrogen tank, the medical liquid nitrogen storage device provided by the invention can more conveniently and accurately display the liquid level height of the liquid nitrogen in the liquid nitrogen tank in real time, and is safer.
Drawings
In order to more clearly illustrate the embodiments of the present 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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a liquid nitrogen tank according to an embodiment of a medical liquid nitrogen storage device provided by the present invention
FIG. 2 is a schematic structural diagram of an embodiment of a medical liquid nitrogen storage device according to the present invention;
FIG. 3 is a sectional view of the structure taken along line A-A in FIG. 2;
FIG. 4 is a schematic top view of an embodiment of a medical liquid nitrogen storage device according to the present invention;
FIG. 5 is an enlarged detail view of B in FIG. 2;
FIG. 6 is an enlarged detail view of the structure at C in FIG. 2;
fig. 7 is a schematic internal top view of a supporting base of an embodiment of the medical liquid nitrogen storage device according to the present invention.
The reference numbers illustrate:
reference numerals Name (R) Reference numerals Name (R)
110 Supporting table 120 Supporting plate
130 Fixed arm 140 Movable arm
150 Connecting plate 160 Projecting arm
170 Storage barrel 180 Barrel body
190 Cartridge cover 210 Vertical groove
220 Pressing plate 230 Movable rod
240 Suction cup 250 Spring
260 Steering grooved wheel 270 Rope
280 Second through hole 290 Rotating ring
310 Connecting column 320 Rotating arm
330 Long slide hole 340 Sliding chute
350 Sliding rail 360 Connecting rod
370 Sliding seat 380 Feed screw nut
390 Screw mandrel 410 Supporting seat
420 Inner groove 430 Bevel gear
440 Liquid nitrogen tank 450 Tank body
460 Can lid 470 Inner container
480 Opening of the container 490 Floating ball
510 Measuring rod 520 Measuring cylinder
530 Inner cavity 540 Elongated slot
550 Measuring block 560 Displacement sensor
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a medical liquid nitrogen storage device.
Referring to fig. 1 to 7, in an embodiment of a medical liquid nitrogen storage device according to the present invention, the medical liquid nitrogen storage device includes a liquid nitrogen tank 440, a supporting component, a receiving component and a measuring component; the support assembly includes a support plate 120 and a support table 110; the support plate 120 is disposed above the support stage 110; the support table 110 is adapted to contact the floor. The liquid nitrogen tank 440 is used to store liquid nitrogen, and the support plate 120 is a circular plate, and the support base 110 is circular in a plan view.
The receiving assembly includes a receiving barrel 170; the receiving cylinder 170 is fixed to the center of the upper surface of the support plate 120; the side wall of the receiving cylinder 170 is provided with a plurality of vertical slots 210; the liquid nitrogen tank 440 is provided in the receiving cylinder 170.
As shown in fig. 1, the liquid nitrogen tank 440 includes a tank body 450 and a tank cover 460; an inner container 470 is formed inside the tank body 450; the inner container 470 is used for storing liquid nitrogen; the inner top is formed with an opening 480; the can lid 460 can be inserted into the opening 480 to seal the can body 450.
The measuring assembly comprises a float ball 490, a measuring rod 510, a measuring cylinder 520, a displacement sensor 560 (preferably an inductive displacement sensor 560) and a measuring block 550; the interior of the canister lid 460 is formed with an interior cavity 530; the measuring cylinder 520 is arranged in the inner cavity 530; a bottom opening 480 of the graduated cylinder 520; the measuring cylinder 520 penetrates through the inner cavity 530 and is communicated with the inner container 470 (the bottom end of the measuring cylinder 520 extends into the inner container 470); the vertical central axes of the measuring cylinder 520 and the tank 450 are collinear; the measuring rod 510 is matched with the measuring cylinder 520 in a sliding embedded mode; the float 490 is connected to one end of the measuring rod 510 extending out of the measuring cylinder 520; the floating ball 490 can float on the liquid level of the liquid nitrogen in the inner container 470.
The side wall of the measuring cylinder 520 is provided with a long groove 540 extending along the length direction of the measuring cylinder 520; the measuring block 550 is fixed on the measuring rod 510 and movably penetrates through the long groove 540; the displacement sensor 560 is arranged between the side of the measuring block 550 extending out of the measuring cylinder 520 and the inner cavity 530; the displacement sensor 560 is used to detect the distance between the measuring block 550 and the inner top wall of the inner cavity 530 to measure the liquid level of the liquid nitrogen in the inner container 470. A display screen (not shown) is further arranged on the outer surface of the tank body 450, a single chip microcomputer (not shown) is further arranged in the inner cavity 530, the single chip microcomputer is in communication connection with the displacement sensor 560, and the single chip microcomputer is also in communication connection with the display screen; the display screen is used for displaying the liquid level of the liquid nitrogen in the tank 450 (i.e. the height of the liquid level relative to the inner bottom wall of the inner container 470).
The medical liquid nitrogen storage device provided by the invention can display the liquid level height of liquid nitrogen in the liquid nitrogen tank 440 in real time by arranging the measuring component; specifically, the distance between the measuring block 550 and the inner top wall of the inner cavity 530 can be measured in real time through the displacement sensor 560, so that the distance is converted into the distance between the floating ball 490 and the inner bottom wall of the inner container 470, the floating ball 490 floats on the liquid level of the liquid nitrogen, the liquid level of the liquid nitrogen can be calculated through the single chip microcomputer, and the liquid level of the liquid nitrogen is displayed on the display screen, so that people can quickly and conveniently know the residual amount of the liquid nitrogen in the liquid nitrogen tank 440; compared with the traditional mode that the liquid nitrogen tank 440 is manually held by hand to shake so as to roughly estimate the amount of liquid nitrogen in the liquid nitrogen tank 440, the medical liquid nitrogen storage device provided by the invention can more conveniently and accurately display the liquid level height of the liquid nitrogen in the liquid nitrogen tank 440 in real time, and is safer.
The temperature is extremely low due to the liquid nitrogen stored in the liquid nitrogen tank 440; therefore, the liquid nitrogen tank 440 is not particularly limited to tilting, inverting, stacking, colliding with each other or colliding with other objects when being used or stored; in the prior art, the manner of keeping the liquid nitrogen tank 440 upright and avoiding collision is generally only to place the liquid nitrogen tank 440 in a closed and safe place, but cannot completely avoid the liquid nitrogen tank 440 to stay upright or to collide (for example, in the case of earthquake).
As shown in fig. 2-4, the medical liquid nitrogen storage device further comprises a fixing component and a driving component.
The number of the fixing components is multiple; the fixing assembly comprises a fixing arm 130 and a transmission part; the fixed arm 130 is vertically arranged, and the fixed arm 130 is movably connected to the supporting plate 120; the driving part is used for driving the fixing arm 130 to move horizontally through the transmission part; the fixing arm 130 can move to extend into the vertical groove 210 and abut against the outer wall of the liquid nitrogen tank 440 to fix the liquid nitrogen tank 440.
Set up liquid nitrogen container 440 in storage cylinder 170, can avoid liquid nitrogen container 440 and external contact, thereby avoid bumping with external object, and simultaneously, when liquid nitrogen container 440 sets up in storage cylinder 170, the driving piece passes through drive assembly drive fixed arm 130 and removes to the direction that is close to storage cylinder 170, thereby make fixed arm 130 stretch into in erecting groove 210, and butt liquid nitrogen container 440, thereby fixed liquid nitrogen container 440's position, so can make liquid nitrogen container 440 keep upright, and very stable, be difficult to receive external environment to disturb and take place to empty or bump the phenomenon, use safe and reliable more.
The stationary assembly further includes a moving arm 140 and a slide 350; the support plate 120 is provided with a long sliding hole 330 which penetrates up and down; the diameters of the long slide hole 330 and the support plate 120 are collinear; an inner groove 420 is formed on one surface of the support table 110 connected with the support plate 120; the long slide hole 330 is penetrated through the inner groove 420.
The slide rail 350 is close to the long slide hole 330 and horizontally arranged on the upper surface of the support plate 120; the extending direction of the slide rail 350 is parallel to the extending direction of the long slide hole 330; the lower side wall of the moving arm 140 is provided with a chute 340; the sliding groove 340 is fittingly sleeved on the sliding rail 350, so that the moving arm 140 can slide along the sliding rail 350; the fixed arm 130 is connected to an end of the moving arm 140 near the receiving cylinder 170; the transmission member is partially disposed in the inner recess 420.
Through the technical scheme, the specific structure that the fixed arm 130 is movably connected to the supporting plate 120 is perfected.
Meanwhile, as shown in fig. 3, the number of the slide rails 350 is 2; the 2 sliding rails 350 are respectively arranged at two sides of the long sliding hole 330 and are symmetrical with the long sliding hole 330; the number of the sliding grooves 340 is 2, and the 2 sliding grooves 340 are all arranged on the bottom wall of the moving arm 140 and are symmetrical with the center line of the bottom wall of the moving arm 140 in the length direction; the fixing arm 130 is vertically connected to an upper portion of one end of the moving arm 140 near the receiving cylinder 170. Through the technical scheme, the specific structure that the moving arm 140 is connected to the support plate 120 in a sliding manner is perfected.
In addition, referring to fig. 4, the number of the fixing components is 4; the 4 long sliding holes 330 are uniformly distributed at equal intervals in a ring shape on the vertical axis of the receiving cylinder 170; wherein 2 long sliding holes 330 are located on the same straight line, the other 2 long sliding holes 330 are located on another straight line, and the adjacent 2 long sliding holes 330 are perpendicular to each other.
Referring to fig. 1, the number of the vertical slots 210 is 4, and the vertical slots 210 correspond to the fixing members one by one; the 4 vertical slots 210 are uniformly distributed at equal intervals in a ring shape along the vertical axis of the receiving cylinder 170; the securing arm 130 of each securing assembly can extend into the corresponding vertical slot 210 and abut the outer wall of the liquid nitrogen tank 440.
Through setting up 4 fixed subassemblies to set up 4 vertical slots 210 in storage cylinder 170, thereby make fixed subassembly stronger to the butt fixed action of liquid nitrogen container 440, thereby make liquid nitrogen container 440 more stable.
Meanwhile, referring to fig. 3 and 7, the transmission part includes a sliding seat 370, a connecting rod 360, a lead screw 390, a lead screw nut 380 and a bevel gear 430; the driving member is a driving motor (not shown); the connecting rod 360 is vertically arranged and movably penetrates through the long sliding hole 330; the top end of the connecting rod 360 is connected to the bottom of the moving arm 140; the bottom end of the connecting rod 360 is connected to the sliding seat 370.
The screw rod 390 is rotatably disposed in the inner groove 420 (specifically, the screw rod 390 is rotatably connected to 2 supporting seats 410 through bearings, and the supporting seats 410 are fixed on the inner bottom wall of the inner groove 420); the screw rod nut 380 is fixedly embedded in the sliding seat 370; the lead screw nut 380 is fittingly sleeved on the lead screw 390; the screw rod 390 is horizontally disposed, and the screw rod 390 is parallel to the extending direction of the long sliding hole 330, and the screw rod 390 is located right below the long sliding hole 330.
As shown in fig. 7, a bevel gear 430 is coaxially connected to one end of the screw 390 near the receiving cylinder 170; the lead screws 390 of the 4 fixing assemblies are uniformly distributed at equal intervals in a ring shape on the vertical axis of the receiving cylinder 170; adjacent lead screws 390 are perpendicular to each other, with opposing lead screws 390 coaxial; the bevel gears 430 on adjacent lead screws 390 mesh with each other; the driving motor is used for driving 1 of the lead screws 390 to rotate.
Specifically, through the above technical scheme, the specific structure that the driving part drives the moving arm 140 to move through the transmission part is perfected, when in use, 1 of the screw rods 390 is driven to rotate through the driving motor, the screw rod 390 rotates to drive the sliding seat 370 to translate, so that the connecting rod 360 drives the moving arm 140 to translate, and the fixed arm 130 is driven to translate; in the process, one of the screw rods 390 drives the bevel gear 430 to rotate through rotation, and the bevel gears 430 are sequentially meshed, so that the other 3 screw rods 390 are driven to rotate simultaneously, and the rotation directions of the 2 screw rods 390 opposite to each other are opposite, so that the 2 opposite sliding seats 370 can move towards each other or move in reverse, and the 2 opposite fixed arms 130 can move towards each other or move in reverse, so that the liquid nitrogen tank 440 can be fixed simultaneously; and then the 4 fixing arms 130 can synchronously approach to each other or move away from each other by adjusting the thread steering of the adjacent screw rods 390, so that the liquid nitrogen tank 440 can be synchronously abutted and fixed or synchronously loosened, and the liquid nitrogen tank 440 can be conveniently taken and placed.
Meanwhile, as shown in fig. 2 and 4, a vertically extending protrusion arm 160 is formed at a side of the fixing arm 130 adjacent to the receiving cylinder 170; a first buffer layer (not shown) is disposed on a side of the protruding arm 160 close to the receiving cylinder 170; the projecting arms 160 can extend into the vertical slots 210 and bring the first buffer layer into abutment with the outer wall of the liquid nitrogen tank 440.
In addition, as shown in fig. 2, fig. 3 and fig. 5, the medical liquid nitrogen storage device further comprises a fastening component; the fastening assembly includes a pressure plate 220, a moving bar 230, and a suction cup 240; the support plate 120 is opened with a plurality of first through holes (not shown); the moving rod 230 vertically slides through the first through hole; the top end of the movable rod 230 is connected with a pressure plate 220; the bottom end of the moving rod 230 is connected with a suction cup 240; the suction cup 240 can be attached to the floor.
Through setting up fastening components, during the use, through pushing down clamp plate 220, can be so that sucking disc 240 and ground inhale with to strengthen the connection stability between backup pad 120 and the ground, thereby make liquid nitrogen container 440 more stable.
Meanwhile, the fastening assembly further includes a spring 250 disposed between the pressing plate 220 and the upper surface of the supporting plate 120, the spring 250 is sleeved on the moving rod 230, one end of the spring 250 is connected to the lower sidewall of the pressing plate 220, and the other end of the spring 250 is connected to the upper surface of the supporting plate 120; the spring 250 is always in a compressed state, and the spring 250 is disposed to transmit the suction force of the suction cup 240 to the support plate 120 and generate a downward pressure on the support plate 120, thereby further fixing the support plate 120.
Meanwhile, the fastening assembly further includes a rope 270, a steering sheave 260, a rotating ring 290, a connecting column 310, and a rotating arm 320; the turning grooved pulley 260 is arranged on the upper surface of the support plate 120 near the pressure plate 220, and a third through hole (not shown) penetrating up and down is further formed on the support plate 120 near the turning grooved pulley 260; the moving arm 140 is provided with a second through hole 280, and the second through hole 280 is parallel to the long sliding hole 330 and is located right above the long sliding hole 330; the rotating ring 290 is rotatably connected to the lower portion of the outer sidewall of the receiving cylinder 170, and the central axis of the rotating ring 290 is collinear with the central axis of the receiving cylinder 170, the rotating ring 290 can horizontally rotate relative to the receiving cylinder 170, and the rotating ring 290 is located below the vertical groove 210.
One end of the rope 270 is connected to the outer edge of the suction cup 240, and the other end of the rope 270 sequentially passes through the third through hole, winds around the steering sheave 260, passes through the second through hole 280, and finally winds around the rotating ring 290; the upper portion of the rotating ring 290 is connected with a connecting column 310, and the top of the connecting column 310 is connected with a horizontal rotating arm 320.
Can drive swivel 290 to rotate through holding swivel arm 320 by hand to pulling rope 270, thereby upwards carry the outside edge of pulling sucking disc 240, thereby make sucking disc 240 break away from in ground, through above-mentioned technical scheme, can be light separate sucking disc 240 and ground, in order to be applicable to and remove this medical liquid nitrogen storage device.
Meanwhile, the number of the fastening members is 4, and the 4 fastening members are respectively disposed near the 4 moving arms 140 and located at the edge of the support plate 120.
In addition, the receiving cylinder 170 further includes a cylinder cover 190 and a cylinder 180; the vertical groove 210 is arranged on the cylinder body 180; the upper part of the cylinder body 180 is opened; the cylinder cover 190 is hinged at the opening of the cylinder 180; the cartridge cover 190 can cover the opening. The inner bottom wall of the cylinder 180 is provided with a second buffer layer (not shown) capable of contacting the bottom of the liquid nitrogen tank 440; the inner wall of the cartridge cover 190 is provided with a third buffer layer (not shown); when the cover 190 covers the open mouth, the third buffer layer is in contact with the top of the liquid nitrogen tank 440.
Meanwhile, the fixing assembly further comprises a connecting plate 150; one side of the connection plate 150 is connected to the upper portion of the moving arm 140; the connecting plate 150 is vertically arranged; the other side of the connecting plate 150 is connected to the side of the fixing arm 130 away from the receiving cylinder 170, and the connecting strength between the fixing arm 130 and the moving arm 140 is enhanced by the connecting plate 150.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A medical liquid nitrogen storage device is characterized by comprising a liquid nitrogen tank, a supporting assembly, a containing assembly and a measuring assembly; the support assembly comprises a support plate and a support platform; the supporting plate is arranged above the supporting platform; the support table is used for contacting with the ground;
the receiving assembly comprises a receiving barrel; the storage barrel is fixed at the central position of the upper surface of the supporting plate; the side wall of the containing barrel is provided with a plurality of vertical grooves; the liquid nitrogen tank is arranged in the containing barrel;
the liquid nitrogen tank comprises a tank body and a tank cover; an inner container is formed inside the tank body; the inner container is used for storing liquid nitrogen; the inner top is formed with an opening; the can lid can be inserted into the opening to seal the can body;
the measuring component comprises a floating ball, a measuring rod, a measuring cylinder, a displacement sensor and a measuring block; an inner cavity is formed inside the tank cover; the measuring cylinder is arranged in the inner cavity; the bottom end of the measuring cylinder is open; the measuring cylinder penetrates through the inner cavity and is communicated with the inner container; the measuring cylinder and the vertical central axis of the tank body are collinear; the measuring rod is matched with and is embedded into the measuring cylinder in a sliding manner; the floating ball is connected with one end of the measuring rod, which extends out of the measuring cylinder; the floating ball can float on the liquid level of the liquid nitrogen in the inner container;
the side wall of the measuring cylinder is provided with an elongated slot extending along the length direction of the measuring cylinder; the measuring block is fixed on the measuring rod and movably penetrates through the long groove; the displacement sensor is arranged between one side of the measuring block extending out of the measuring cylinder and the inner cavity; the displacement sensor is used for detecting the distance between the measuring block and the inner top wall of the inner cavity so as to measure the liquid level position of liquid nitrogen in the inner container.
2. The medical liquid nitrogen storage device according to claim 1, further comprising a fixing assembly and a driving member;
the number of the fixing components is multiple; the fixing assembly comprises a fixing arm and a transmission part; the fixed arm is vertically arranged and movably connected to the supporting plate; the driving piece is used for driving the fixing arm to horizontally move through the transmission part; the fixing arm can move to stretch into the vertical groove and abut against the outer wall of the liquid nitrogen tank to fix the liquid nitrogen tank.
3. The medical liquid nitrogen storage device according to claim 1, wherein said fixed assembly further comprises a moving arm and a slide rail; the supporting plate is provided with a long sliding hole which penetrates through the supporting plate up and down; an inner groove is formed in one surface, connected with the supporting plate, of the supporting table; the long slide hole is communicated with the inner groove;
the slide rail is close to the long slide hole and horizontally arranged on the upper surface of the support plate; the extending direction of the slide rail is parallel to the extending direction of the long slide hole; the moving arm is provided with a sliding groove; the sliding groove is matched and sleeved on the sliding rail, so that the moving arm can slide along the sliding rail; the fixed arm is connected to one end, close to the containing barrel, of the moving arm; the transmission component is partially arranged in the inner groove.
4. The medical liquid nitrogen storage device according to claim 3, wherein the number of the slide rails is 2; the 2 slide rails are respectively arranged on two sides of the long slide hole and are symmetrical with the long slide hole; the number of the sliding grooves is 2, and the 2 sliding grooves are all arranged on the bottom wall of the moving arm and are symmetrical with the center line of the bottom wall of the moving arm in the length direction; the fixed arm is vertically connected to the upper part of one end of the moving arm close to the containing barrel.
5. The medical liquid nitrogen storage device according to claim 4, wherein the number of said fixing members is 4; the 4 long sliding holes are uniformly distributed at equal intervals in an annular mode on the vertical axis of the containing barrel; wherein 2 of the long sliding holes are positioned on the same straight line, the other 2 of the long sliding holes are positioned on the other straight line, and the adjacent 2 of the long sliding holes are vertical to each other;
the number of the vertical grooves is 4, and the vertical grooves correspond to the fixing assemblies one by one; the 4 vertical grooves are uniformly distributed at equal intervals in an annular mode on the vertical axis of the containing barrel; the fixing arms of the fixing assemblies can extend into the corresponding vertical grooves and are abutted against the outer wall of the liquid nitrogen tank.
6. The medical liquid nitrogen storage device according to claim 5, wherein the transmission part comprises a sliding seat, a connecting rod, a lead screw nut and a bevel gear; the driving piece is a driving motor; the connecting rod is vertically arranged and movably penetrates through the long sliding hole; the top end of the connecting rod is connected to the bottom of the moving arm; the bottom end of the connecting rod is connected to the sliding seat;
the screw rod is rotatably arranged in the inner groove; the screw rod nut is fixedly embedded in the sliding seat; the screw rod nut is matched and sleeved on the screw rod; the screw rod is horizontally arranged and is parallel to the extending direction of the long sliding hole;
the bevel gear is coaxially connected to one end, close to the containing barrel, of the screw rod; the screw rods of the 4 fixing assemblies are uniformly distributed at equal intervals in a ring shape on the vertical axis of the storage barrel; the adjacent screw rods are vertical to each other, and the opposite screw rods are coaxial; the bevel gears on the adjacent screw rods are meshed with each other; the driving motor is used for driving 1 of the screw rods to rotate.
7. The medical liquid nitrogen storage device as claimed in claim 3, wherein a side of the fixing arm close to the receiving barrel is formed with a vertically extending protruding arm; a first buffer layer is arranged on one side, close to the storage barrel, of the protruding arm; the protruding arm can stretch into in the vertical slot, and make first buffer layer with the outer wall butt of liquid nitrogen container.
8. The medical liquid nitrogen storage device according to claim 1, further comprising a fastening assembly; the fastening assembly comprises a pressing plate, a moving rod and a sucker; the supporting plate is provided with a plurality of first through holes; the moving rod vertically penetrates through the first through hole in a sliding mode; the top end of the moving rod is connected with the pressing plate; the bottom end of the moving rod is connected with the sucker; the sucking disc can suck with the ground.
9. The medical liquid nitrogen storage device according to claim 1, wherein said cartridge further comprises a cap and a body; the vertical groove is formed in the cylinder body; the upper part of the cylinder body is open; the cylinder cover is hinged at the opening of the cylinder body; the cartridge cover can cover the opening.
10. The medical liquid nitrogen storage device as claimed in claim 9, wherein the inner bottom wall of the cylinder is provided with a second buffer layer capable of contacting with the bottom of the liquid nitrogen tank; a third buffer layer is arranged on the inner wall of the cylinder cover; when the cylinder cover covers the opening, the third buffer layer is in contact with the top of the liquid nitrogen tank.
CN202110320354.4A 2021-03-25 2021-03-25 Medical liquid nitrogen storage device Active CN113090938B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0167409A2 (en) * 1984-07-06 1986-01-08 Kabushiki Kaisha Neriki A level gauge for a liquid container
US20110063628A1 (en) * 2008-10-28 2011-03-17 Zhi Xie Apparatus and method for measuring the liquid level of molten metal
CN205919118U (en) * 2016-07-21 2017-02-01 巫晓斌 Acetylene cylinder safety arrangement
CN106767936A (en) * 2017-02-09 2017-05-31 宣向斌 The concentration detection system and its detection method of a kind of use integration technology
CN210321911U (en) * 2019-09-16 2020-04-14 南宫市长辉电器设备有限公司 Liquid quantitative alarm
CN210463701U (en) * 2019-07-25 2020-05-05 河北达瑞生物科技股份有限公司 A fridge for bioengineering
CN211040447U (en) * 2019-10-31 2020-07-17 上海康岱生物医药技术股份有限公司 Liquid nitrogen container with high resistance to compression protective structure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0167409A2 (en) * 1984-07-06 1986-01-08 Kabushiki Kaisha Neriki A level gauge for a liquid container
US20110063628A1 (en) * 2008-10-28 2011-03-17 Zhi Xie Apparatus and method for measuring the liquid level of molten metal
CN205919118U (en) * 2016-07-21 2017-02-01 巫晓斌 Acetylene cylinder safety arrangement
CN106767936A (en) * 2017-02-09 2017-05-31 宣向斌 The concentration detection system and its detection method of a kind of use integration technology
CN210463701U (en) * 2019-07-25 2020-05-05 河北达瑞生物科技股份有限公司 A fridge for bioengineering
CN210321911U (en) * 2019-09-16 2020-04-14 南宫市长辉电器设备有限公司 Liquid quantitative alarm
CN211040447U (en) * 2019-10-31 2020-07-17 上海康岱生物医药技术股份有限公司 Liquid nitrogen container with high resistance to compression protective structure

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